MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'The Journal of Parasitology' source. Tue, 16 Feb 2010 16:34:10 +0100 http://www.medworm.com/index.php?rid=3115469&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D20020806%26dopt%3DAbstract A NEW SPECIES OF COSMOCERCOIDES (NEMATODA: COSMOCERCIDAE) FROM A GYMNOPHTHALMID LIZARD OF WESTERN BRAZIL. J Parasitol. 2009 Dec 18;:1 Authors: Strüssmann C, Silva R, Avila R Cosmocercoides sauria n. sp., an intestinal parasite of the gymnophthalmid lizard Iphisa elegans from western Brazil, is described. Of the 18 species previously described, C. sauria represents the 19th species, and the third to be reported in the Neotropical region. Moreover, C. sauria is the second species reported from a reptilian host, and is distinguished by a smaller number of rosette papillae (4 pairs). Additionally, the new species can be distinguished from the other Neotropical species (Cosmocercoides lilloi Ramallo, Bursey and Goldberg, 2007 and C. variabilis (Harwood, 1930)) by possessing sma... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3115469 Fri, 18 Dec 2009 00:00:00 +0100 3115469 http://www.medworm.com/index.php?rid=3115468&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D20020807%26dopt%3DAbstract ANTIBODIES TO TOXOPLASMA GONDII IN STRAY AND HOUSEHOLD DOGS IN GUANGZHOU, CHINA. J Parasitol. 2009 Dec 18;:1 Authors: Zhang H, Zhou DH, Yi-Zhou C, Lin RQ, Yuan ZG, Song HQ, Li SJ, Zhu XQ The frequency of Toxoplasma gondii antibodies in stray and household dogs in Guangzhou, China was examined by ELISA on serum samples from 150 dogs (36 strays and 114 households), and the overall prevalence was 21.3%. The extent of infection in stray dogs (33.3%) was significantly higher (P < 0.05) than in household dogs (17.5%). Infection in male and female dogs of both groups was not significantly different (P>/=0.05), 31.8% versus 35.7% for male and female in stray dogs, and 14.5% versus 22.2% in household dogs, respectively. The results of the present investigation indicate that the se... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3115468 Fri, 18 Dec 2009 00:00:00 +0100 3115468 http://www.medworm.com/index.php?rid=3115467&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D20020808%26dopt%3DAbstract PREVALENCE OF ANTIBODIES TO TRYPANOSOMA CRUZI, LEISHMANIA INFANTUM, ENCEPHALITOZOON CUNICULI, SARCOCYSTIS NEURONA, AND NEOSPORA CANINUM AND IN CAPYBARA, HYDROCHOERUS HYDROCHAERIS, FROM SAO PAULO STATE BRAZIL. J Parasitol. 2009 Dec 18;:1 Authors: Valadas S, Gennari S, Yai L, Rosypal A, Lindsay D Little is known about the importance of capybara, Hydrochoerus hydrochaeris, as reservoirs for parasites of zoonotic or veterinary importance. Sera from 63 capybaras from 6 counties in the state of São Paulo, Brazil were examined for antibodies to Trypanosoma cruzi, Leishmania infantum, Encephalitozoon cuniculi, Sarcocystis neurona, and Neospora caninum using an indirect immunofluorescent antibody test. Five (8%) of the 63 capybaras had antibodies to T. cruzi epimastigotes. None of ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3115467 Fri, 18 Dec 2009 00:00:00 +0100 3115467 http://www.medworm.com/index.php?rid=3061728&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19958044%26dopt%3DAbstract In this study, we tested the hypothesis that CSAs possess anti-parasitic activities with minimal to no effects on mammalian cells, and thus could be used as potential therapeutic agents against pathogenic trypanosomatids. To investigate this, we synthesized CSAs and determined their trypanocidal and leishmanicidal activities in vitro. The three ceragenins (i.e., CSA-8, CSA-13, and CSA-54) assayed showed several degrees of parasiticidal activity. CSA-13 was the most effective compound against Leishmania major promastigotes and Trypanosoma cruzi trypomastigotes (LD50 4.9 and 9 M, respectively). The trypanocidal activities of these ceragenins were also assessed by infectivity experiments. We found CSA-8 was more effective on T. cruzi intracellular amastigotes, when the infected host cells wer... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3061728 Thu, 03 Dec 2009 00:00:00 +0100 3061728 http://www.medworm.com/index.php?rid=3061727&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19958045%26dopt%3DAbstract Authors: Acosta R The genus Strepsylla Traub is redescribed and compared with the other genera of the tribe Phalacropsyllini. The species of this genus are distributed in Mexico, Guatemala, Honduras, Costa Rica, and Panama, where they parasitize small rodents, especially species belonging to the mouse genus Peromyscus. Five new flea species are reported and described (Strepsylla ixtlanensis, S. longicauda, S. queretana, S. tezontli, and S. vargasi). Keys for the genera of the tribe and for the species of Strepsylla are included and relevant notes for each species are given. A cladistic analysis of Strepsylla led to the recognition of two clades, one including S. mina, S. villai, and S. tezontli, which is congruent with a distribution along the Trans Mexico Volcanic Belt; and the second... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3061727 Thu, 03 Dec 2009 00:00:00 +0100 3061727 http://www.medworm.com/index.php?rid=3061726&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19958046%26dopt%3DAbstract BALAENOPHILUS MANATORUM (ORTIZ, LALANA AND TORRES, 1992) (COPEPODA: HARPACTICOIDA) FROM LOGGERHEAD SEA TURTLES, CARETTA CARETTA, FROM JAPAN AND THE WESTERN MEDITERRANEAN: AMENDED DESCRIPTION AND GEOGRAPHICAL COMPARISON. J Parasitol. 2009 Dec 3;:1 Authors: Aznar FJ, Badillo FJ, Mateu P, Raga JA The ectoparasitic harpacticoid copepod Balaenophilus manatorum (Ortíz, Lalana and Torres, 1992) (syn. Balaenophilus umigamecolus Ogawa, Matsuzaki and Misaki, 1997) has been reported on 3 species of marine turtles from the Pacific and the Mediterranean, and the West Indian manatee off Cuba in the Caribbean. The 3 available descriptions of this species were made using light microscopy. In this paper, we provide an amended description of B. manatorum using scanning electronic microscopy... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3061726 Thu, 03 Dec 2009 00:00:00 +0100 3061726 http://www.medworm.com/index.php?rid=3061725&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19958047%26dopt%3DAbstract Authors: Readel A, Goldberg T In a survey of blood parasites in Ugandan frogs, 30 (17%) of 180 frogs were infected with at least 1 species of Hepatozoon or Trypanosoma, or with microfilariae. There were significant differences in the prevalence of parasitism among species, with parasitemia detected in only 3/9 species. The intensity of blood parasite infection ranged from 1 - 1,080 infected cells/5,000 cells examined. Seasonal changes in the prevalence and intensity of parasitemia were not observed, nor was there any association between parasitemia and infection with the pandemic fungus Batrachochytrium dendrobatidis. PMID: 19958047 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3061725 Thu, 03 Dec 2009 00:00:00 +0100 3061725 http://www.medworm.com/index.php?rid=3057404&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19954256%26dopt%3DAbstract CUCULLANUS AGENEIOSUS N. SP. (NEMATODA: CUCULLANIDAE) FROM AGENEIOSUS UCAYALENSIS CASTELNAU 1855 (PISCES: AUCHENIPTERIDAE) FROM PARA, BRAZIL. J Parasitol. 2009 Dec 2;:1 Authors: Giese EG, Furtado AP, Lanfredi RM, Dos Santos JN A new species of Cucullanidae is described from the intestine of the Ageneiosus ucayalensis, from the Guajará Bay, Belém, Pará State, Brazil. The new species is characterized mainly by arrangement of male caudal papillae, and the position of lateral phasmids immediately posterior of 10th papillae, markedly short and unequal spicules, a precloacal sucker and the presence of an unpaired median papilla just of the anterior cloacal lip. PMID: 19954256 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3057404 Wed, 02 Dec 2009 00:00:00 +0100 3057404 http://www.medworm.com/index.php?rid=3057403&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19954257%26dopt%3DAbstract We examined the cells associated with the epidermal lesions and confirmed they were viable Ichthyophonus sp. cells that were readily released from the skin into the mucous layer and ultimately into the aquatic environment. The released cells were infectious when injected into the body cavity of specific pathogen-free herring. Our hypothesis is that different mechanisms of transmission occur in carnivorous and planktivorous hosts, with planktonic feeders becoming infected by ingestion of ulcer-derived cells while carnivores become infected by ingestion of whole infected fish. PMID: 19954257 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3057403 Wed, 02 Dec 2009 00:00:00 +0100 3057403 http://www.medworm.com/index.php?rid=3057402&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19954258%26dopt%3DAbstract This study also provides support for some of the current hypotheses on attenuation during a pathogen's evolution from vector-borne to vertical transmission. We suggest that T. cruzi may provide a useful model for the study of the adaptive dynamics of a zoonotic human pathogen. PMID: 19954258 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3057402 Wed, 02 Dec 2009 00:00:00 +0100 3057402 http://www.medworm.com/index.php?rid=3057401&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19954259%26dopt%3DAbstract This study assesses the ecological factors associated with microfilariae prevalence in wild populations of endangered flightless cormorants (Phalacrocorax harrisi) and Galápagos penguins (Spheniscus mendiculus). Prevalence values were tested for correlation with a large number of environmental variables, as modeled from weather station data and measured by satellite-borne sensors. Predictions were made based on the expected effects of climatic and landscape variables on sustained populations of arthropod vectors required for transmission of microfilariae. In general, findings were consistent with predictions in both cormorants and penguins; prevalence correlated positively with temperature, precipitation and vegetation density, and negatively with measures of environmental variability... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3057401 Wed, 02 Dec 2009 00:00:00 +0100 3057401 http://www.medworm.com/index.php?rid=3057400&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19954260%26dopt%3DAbstract This study showed that ancient parasite eggs, not commonly present in soil samples from medieval Korean tombs, have been found in a very limited number of cases that satisfy certain archaeological conditions. In our paleo-parasitological examination of soil samples from medieval tombs encapsulated by a lime soil mixture barrier (LSMB), parasite eggs were more commonly detected in tombs that contained remains with clothes, hair or brain tissue, though not all such tombs revealed eggs. There was a close correlation between the preservation of certain types of cultural or human remains and the presence of ancient parasite eggs within medieval Korean LSMB tombs. Such remains therefore could be regarded as a strong predictor of well-preserved ancient parasite eggs in soil samples from LSMB tomb... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3057400 Wed, 02 Dec 2009 00:00:00 +0100 3057400 http://www.medworm.com/index.php?rid=3057399&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19954261%26dopt%3DAbstract PERSISTENCE OF INFECTION BY METACERCARIAE OF APOPHALLUS SP., NEASCUS SP., AND NANOPHYETUS SALMINCOLA PLUS TWO MYXOZOANS (MYXOBOLUS INSIDIOSUS AND MYXOBOLUS FRYERI) IN COHO SALMON ONCORHYNCHUS KISUTCH. J Parasitol. 2009 Dec 2;:1 Authors: Ferguson JA, Schreck CB, Chitwood R, Kent ML We evaluated the ability of 5 muscle- or skin-dwelling parasites to persist in naturally infected coho salmon, Oncorhynchus kisutch, from the West Fork Smith River, Oregon, by holding them in captivity from late summer to early spring (parr stage to the typical time of smoltification). These parasites included metacercariae of 3 digeneans, Nanophyetus salmincola, Apophallus sp., and neascus sp., and 2 myxozoans, Myxobolus insidiosus and Myxobolus fryeri. Two groups of wild caught fish were evaluated i... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3057399 Wed, 02 Dec 2009 00:00:00 +0100 3057399 http://www.medworm.com/index.php?rid=3057398&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19954262%26dopt%3DAbstract HORSEHAIR WORMS (GORDIUS ROBUSTUS) IN NESTS OF THE WESTERN BLUEBIRD (SIALIA MEXICANA): EVIDENCE FOR ANTI-PREDATOR AVOIDANCE? J Parasitol. 2009 Dec 2;:1 Authors: Fair J, Hanelt B, Burnett K Hairworms (Nematomorpha: Gordiida) are internal parasites that alter the behavior of their terrestrial insect host, forcing it to enter the water to reach its reproductive habitat. After reproduction of the free-living adults, the larvae encyst in aquatic insects and are retained upon metamorphosis of the insect into an adult fly. This paratenic host links the aquatic and terrestrial environments after its consumption by omnivorous or predatory insects. Therefore, hairworms are usually only associated with invertebrates and few reports discuss the hairworm interactions with vertebrate species... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3057398 Wed, 02 Dec 2009 00:00:00 +0100 3057398 http://www.medworm.com/index.php?rid=3057397&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19954263%26dopt%3DAbstract GASTRO-INTESTINAL PARASITES OF RED-FRONTED LEMURS IN KIRINDY FOREST, WESTERN MADAGASCAR. J Parasitol. 2009 Dec 2;:1 Authors: Clough D Although parasites are important regulatory factors in animal populations, basic knowledge on their fauna in many vertebrate taxa is lacking. In particular, parasite infections of primate species have gained little attention. Here, I present data on the gastro-intestinal fauna of a population of wild red-fronted lemurs (Eulemur fulvus rufus; Primates: Lemuriformes) monitored over a total of 8 mo during 2 consecutive field seasons in 2006 and 2007 in Kirindy Forest, western Madagascar. Using fecal samples for parasite analyses, I identified 10 parasite species, including 6 nematodes (Lemuricola vauceli, Trichuris sp., 2 species of Callistoura, 1 t... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3057397 Wed, 02 Dec 2009 00:00:00 +0100 3057397 http://www.medworm.com/index.php?rid=3015811&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19925039%26dopt%3DAbstract Authors: Arias MA, Pi Eiro P, Hillyer GV, Su Rez JL, Francisco IN, Corti As FJ, D Ez-Ba Os P, Morrondo P, S Nchez-Andrade R, Paz-Silva A A cross-sectional study to assess the seroprevalence of fascioliasis by immunoenzymatic probes in an endemic area (northwestern Spain) was conducted. Blood samples were collected from 1,034 cattle (Crossbred, Rubia Gallega, and Friesian breeds) and the diagnosis of fascioliasis was carried out by determining both the occurrence of antigenemia and the presence of specific IgG antibodies against a Fasciola hepatica recombinant protein (FhrAPS). The IgG seroprevalence was 65% (95% CI, 62-68) by the FhrAPS-ELISA and 32% (29-35) exhibited antigenemia, with the lowest percentages in the Friesians and the highest in the Crossbreds. These results confirm an e... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3015811 Thu, 19 Nov 2009 00:00:00 +0100 3015811 http://www.medworm.com/index.php?rid=3015810&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19925040%26dopt%3DAbstract Authors: Pérez-Ponce de León G, Nadler SA We conducted an extensive literature review on studies that have used DNA sequences to detect cryptic species of parasites during the last decade. Each literature report that included the term cryptic or sibling species was analyzed to determine the approach used by the author(s). Reports were carefully filtered to retain only those that recognized the existence of cryptic species based on the use of DNA sequences. Based on analysis of these papers, we comment on the different ways that parasite cryptic species are discovered in studies focusing on different aspects of the host-parasite relationship, or disciplines within parasitology. We found a lack of methodological and theoretical uniformity in the discipline for finding and delim... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3015810 Thu, 19 Nov 2009 00:00:00 +0100 3015810 http://www.medworm.com/index.php?rid=3015809&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19925041%26dopt%3DAbstract TICK (ACARI:IXODIDAE) INFESTATION AT TWO RURAL, SEASONAL CAMPS, MAINE AND VERMONT, U.S.A. J Parasitol. 2009 Nov 19;:1 Authors: Lubelczyk C, Cahill BK, Hanson T, Turmel J, Lacombe E, Rand PW, Elias SP, Smith Jr RP In July 2008, owners of seasonal camps in Maine and Vermont were exposed to large numbers of questing ticks after opening their camps for the season. Examination of collected specimens revealed that the camp in Vermont was infested with Ixodes cookei Packard, while the camp in Maine was infested with Ixodes marxi Banks. In both instances, numerous tick bites were reported by residents. Both camps were also occupied by wildlife during the off-season, primarily squirrels (Maine) and skunks (Vermont). Subsequent samples from the Vermont site were tested for the presence o... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3015809 Thu, 19 Nov 2009 00:00:00 +0100 3015809 http://www.medworm.com/index.php?rid=3015808&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19925042%26dopt%3DAbstract Authors: Doi H, Yurlova NI, Vodyanitskaya S, Kanaya G, Shikano S, Kikuchi E Most studies have reported negative carbon and nitrogen isotope fractionations between hosts and parasites, and although the reason for this is unclear, isotope values have not yet been determined for many parasite species such as trematodes due to their relatively small body sizes. We investigated the carbon and nitrogen isotope values of freshwater snails and trematode parasites using a method for organisms with very small body sizes. We found negative isotope fractionation values between host snails and trematode parasites, similar to published values for other parasite groups with large body sizes, which suggest that the mechanisms for determining isotope fractionations between hosts and parasites provide s... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3015808 Thu, 19 Nov 2009 00:00:00 +0100 3015808 http://www.medworm.com/index.php?rid=3001045&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19916629%26dopt%3DAbstract High Prevalence of Strongyloides stercoralis Among School Children in Rural Côte d'Ivoire. J Parasitol. 2009 Nov 16;:1 Authors: Glinz D, N'guessan NA, Utzinger J, N'goran EK Two cross-sectional surveys were carried out in rural Côte d'Ivoire, the first in 5 primary schools in the Lake Taabo area, and the second one in the primary school of Azaguié-IRFA. Overall, 251 school children were screened for Strongyloides stercoralis using either the Baermann method, or the Koga agar plate method, or both techniques. The prevalence of S. stercoralis at the unit of the school ranged between 4.0% and 48%. Because S. stercoralis is a neglected nematode, yet an important parasite from a public health perspective, surveys should consider the use of appropriate diagnostic metho... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3001045 Mon, 16 Nov 2009 00:00:00 +0100 3001045 http://www.medworm.com/index.php?rid=3001044&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19916630%26dopt%3DAbstract IDENTIFICATION AND PHYLOGENETIC ANALYSIS OF DIROFILARIA URSI (NEMATODA: FILARIOIDEA) FROM WISCONSIN BLACK BEARS (URSUS AMERICANUS) AND ITS WOLBACHIA ENDOSYMBIONT. J Parasitol. 2009 Nov 16;:1 Authors: Michalski S, Bain O, Fischer K, Fischer P, Kumar S, Foster J Dirofilaria ursi is a filarial nematode of American black bears (Ursus americanus Pallas, 1780) that is vectored by black flies (Simuliidae) in many parts of the United States. In northwestern Wisconsin, the prevalence of microfilaremic bears during the fall hunting season was 21% (n=47). Unsheathed blood microfilariae from Wisconsin bears possess characters consistent with the original description of D. ursi, as do adult worms observed histologically and grossly. Immunohistochemistry was used to identify the Wolbachia en... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3001044 Mon, 16 Nov 2009 00:00:00 +0100 3001044 http://www.medworm.com/index.php?rid=3001043&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19916631%26dopt%3DAbstract We examined genetic differentiation of the malaria parasite P. mexicanum, and its lizard host, Sceloporus occidentalis, at 8 sites in northern California using variable microsatellite markers for both species. These lizards are small, and highly territorial, so we expected local genetic differentiation of both parasite and lizard. Populations of P. mexicanum were found to be differentiated by analysis of 5 markers (Fst values > 0.05 - 0.10) over distances as short as 230 - 400 m, and greatly differentiated (Fst values > 0.25) for sites separated by ~10 km. In contrast, the lizard host had no, or very low, levels of differentiation for 3 markers, even for sites > 40 km distant. Thus, gene flow for the lizard was great, but despite the mobility of the vertebrate host, the parasite w... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=3001043 Mon, 16 Nov 2009 00:00:00 +0100 3001043 http://www.medworm.com/index.php?rid=2978127&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19895158%26dopt%3DAbstract SEROPREVALENCE OF NEOSPORA CANINUM INFECTION IN DAIRY CATTLE IN NORTHEASTERN CHINA. J Parasitol. 2009 Nov 6;:1 Authors: Wang C, Wang Y, Zou X, Zhai Y, Gao J, Hou M, Zhu XQ The seroprevalence of Neospora caninum infection in China's northeastern Heilongjiang Province was surveyed between 2007-2008. A total of 540 serum samples of dairy cattle from 9 counties were examined for antibodies to N. caninum by enzyme-linked immunosorbent assay (ELISA). The overall seroprevalence of N. caninum in dairy cattle was 13.3% (72/540). The seroprevalence of N. caninum in aborting cows (14.9%) was higher than that in non-aborting cows (10.3%). Dairy cattle with 5 pregnancies had the highest seroprevalence (22.7%). However, there was no apparent association between N. caninum seropositivity and ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2978127 Fri, 06 Nov 2009 00:00:00 +0100 2978127 http://www.medworm.com/index.php?rid=2978126&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19895159%26dopt%3DAbstract In this study, we show that the wood frog, Rana sylvatica, supports merogonic development, but not gamogonic development, of this protozoan parasite, and that the mosquito Culex pipiens serves as an experimental definitive host for sporogonic development. Two wood frogs were each force-fed C. territans, containing oocysts of H. clamatae in their Malpighian tubules, which had fed on blood of infected green frogs 30 days previously. Free merozoites were observed in 1 wood frog 35 days after inoculation, but intraerythrocytic gamonts were not observed. Fifteen C. pipiens were fed on a mixture of infected frog blood and physiological saline. Thirty days after blood feeding, 2 mosquitoes were infected with oocysts of H. clamatae, whereas the other 13 either were negative for infection or were d... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2978126 Fri, 06 Nov 2009 00:00:00 +0100 2978126 http://www.medworm.com/index.php?rid=2978125&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19895160%26dopt%3DAbstract SYNLOPHE STRUCTURE IN PSEUDOMARSHALLAGIA ELONGATA (NEMATODA: TRICHOSTRONGYLOIDEA), ABOMASAL PARASITES AMONG ETHIOPIAN UNGULATES, WITH CONSIDERATION OF OTHER MORPHOLOGICAL ATTRIBUTES AND DIFFERENTIATION WITHIN THE OSTERTAGIINAE. J Parasitol. 2009 Nov 6;:1 Authors: Hoberg EP, Kumsa B, Pilitt PA, Abrams A The independence of the genus Pseudomarshallagia and its placement among the medium stomach worms of ungulates, Ostertagiinae, is confirmed based on comparative morphological studies of the synlophe and genital attributes among male and female specimens. An emended description of P. elongata is presented based on a series of specimens in sheep from northern Ethiopia. Pseudomarshallagia elongata is retained among the 15 genera of the Ostertagiinae based on presence of a prominent ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2978125 Fri, 06 Nov 2009 00:00:00 +0100 2978125 http://www.medworm.com/index.php?rid=2968215&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19891511%26dopt%3DAbstract INACTIVATION OF GIARDIA LAMBLIA CYSTS BY COBALT-60 IRRADIATION. J Parasitol. 2009 Nov 5;:1 Authors: Sundermann CA, Estridge BH Cysts of Giardia lamblia can be a contaminant of water and food that can infect humans and cause the zoonotic disease, giardiasis. Irradiation by a cobalt-60 source was investigated for ability to inactivate cysts such that they would not be infective to gerbils. Cysts that received doses of radiation ranging from 0.25 to 2.0 kGy, with a recovery period of 6 hr or less, did not infect gerbils. Cysts that were irradiated at 0.25 kGy and allowed to recover at room temperature for 24 hr or longer were infective. Temperature had an effect on the ability of cysts to regain infectivity in that cysts which were allowed to recover at 4 C after irradiation were ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2968215 Thu, 05 Nov 2009 00:00:00 +0100 2968215 http://www.medworm.com/index.php?rid=2968214&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19891512%26dopt%3DAbstract FOOD WEBS FOR PARASITOLOGISTS. A REVIEW. J Parasitol. 2009 Nov 5;:1 Authors: Sukhdeo MV This review examines the historical origins of food web theory, and explores the reasons why parasites have traditionally been left out of food web studies. Current paradigms may still be an impediment because despite several attempts, it remains virtually impossible to retrofit parasites into food web theory in any satisfactory manner. It seems clear that parasitologists must return to first principles to solve how best to incorporate parasites into ecological food webs, and a first step in changing the paradigms will be to include parasites in the classic ecological patterns that inform food web theory. The limitations of current food web models are discussed with respect to their logistic... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2968214 Thu, 05 Nov 2009 00:00:00 +0100 2968214 http://www.medworm.com/index.php?rid=2968213&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19891513%26dopt%3DAbstract This report mainly concerns 2 species, D. pacificum and D. arctocephalinum, for which sea lions (Otariidae) are final hosts. The taxonomic status of those cestodes has not been clearly discernible, due to misinterpretation of relationships; complex synonymies have resulted from misidentification(s). Stiles and Hassall in 1899 obtained but did not describe cestodes from the northern fur seal (Otariidae) (Pribilof Islands). That taxon was studied by several investigators, with diverse conclusions. The valid designation is D. pacificum (Nybelin, 1931). In 1937, Johnston and Drummond described separately 2 conspecific cestodes from sea lions near Australia, designated D. arctocephalinum and D. arctocephali, respectively. Both names have been listed incorrectly as synonyms of D. pacificum. The ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2968213 Thu, 05 Nov 2009 00:00:00 +0100 2968213 http://www.medworm.com/index.php?rid=2968212&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19891514%26dopt%3DAbstract Authors: Kumagai M, Inaba T, Makioka A, Ishiwata K, Onishi K, Watanabe N Many attempts have been undertaken to make permanent preparations of helminth eggs. However, none was both durable itself and free from deforming of thin-shell eggs, such as hookworm eggs. To overcome these drawbacks, we have modified the glycerin jelly mounting procedure in 2 aspects. First, we gradually changed the media in which the helminth eggs soaked, from 10% formalin via water to the 70% ethanol and 5% glycerin solution. It took 10 days, which should be much longer than the processes previously reported. Second, we used a hole slide glass instead of a slide glass. The eggs of 11 species of helminths prepared by this procedure have kept their morphology without apparent change for more than 4 yr. PMID: ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2968212 Thu, 05 Nov 2009 00:00:00 +0100 2968212 http://www.medworm.com/index.php?rid=2968211&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19891515%26dopt%3DAbstract EPIZOOTIOLOGY OF MYXOBOLUS CEREBRALIS, THE CAUSATIVE AGENT OF SALMONID WHIRLING DISEASE IN THE ROCK CREEK DRAINAGE OF WEST-CENTRAL MONTANA: 2004-2008. J Parasitol. 2009 Nov 5;:1 Authors: Granath WO, Vincent R Whirling disease, caused by the myxozoan parasite Myxobolus cerebralis, remains a serious health threat to salmonid fish in the western U.S. A previously published study on the epizootiology of whirling disease in the Rock Creek watershed of west-central Montana, conducted from 1998 to 2003, showed that the intensity of M. cerebralis infections in sentinel trout increased significantly throughout the drainage and that the range of M. cerebralis had expanded considerably. In addition, the parasite had apparently caused a dramatic decline in rainbow trout densities but the b... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2968211 Thu, 05 Nov 2009 00:00:00 +0100 2968211 http://www.medworm.com/index.php?rid=2968210&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19891516%26dopt%3DAbstract OBSERVATIONS ON THE UGANDA I STRAIN OF PLASMODIUM MALARIAE AND PLASMODIUM BRASILIANUM IN AOTUS AND SAIMIRI MONKEYS AND ANOPHELES MOSQUITOES. J Parasitol. 2009 Nov 5;:1 Authors: Collins WE, Sullivan JS, Nace D, Williams T, Williams A, Barnwell JW Splenectomized Aotus lemurinus griseimembra, A. azarae boliviensis, A. nancymaae, A. vociferans and Saimiri boliviensis monkeys were infected with the Uganda I/CDC strain of Plasmodium malariae. The maximum parasite counts were lower if the animals had been previously infected with P. vivax. Mosquito infection was concentrated in the 12 days following the rise in count above 1,000/microL. Mosquito infection and parasite counts were highest with A. l. griseimembra. Anopheles freeborni was more readily infected than An. gambiae, which was... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2968210 Thu, 05 Nov 2009 00:00:00 +0100 2968210 http://www.medworm.com/index.php?rid=2968209&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19891517%26dopt%3DAbstract Authors: Kubo M, Jeong A, Kim SI, Kim YJ, Lee H, Kimura J, Agatsuma T, Sakai H, Yanai T Hepatozoon species infections were detected in 4 of 5 heart samples from leopard cats (Prionailurus bengalensis) in Korea examined by light microscopy and PCR. Microscopically, the schizonts of the Hepatozoon species were observed within the parasitophorous vacuoles of unidentified host cells which were located between myocytes. The schizonts were approximately 31 +/- 4 x 19 +/- 3 microm in size and the 3 mature schizonts contained approximately 24, 25 and 35 merozoites, respectively. In analyses of the partial 18S rRNA gene sequence, the Hepatozoon species infecting the Korean leopard cats was closely related to Brazilian and Spanish isolates of Hepatozoon felis. PMID: 19891517 [PubMed - as sup... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2968209 Thu, 05 Nov 2009 00:00:00 +0100 2968209 http://www.medworm.com/index.php?rid=2968216&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19888796%26dopt%3DAbstract A NEW SPECIES OF CARDICOLA SHORT, 1953 (DIGENEA: APOROCOTYLIDAE) FROM THE HEART AND BRANCHIAL VESSELS OF TWO SURFPERCHES (PERCIFORMES: EMBIOTOCIDAE) IN THE EASTERN PACIFIC OCEAN OFF CALIFORNIA. J Parasitol. 2009 Nov 4;:1 Authors: Bullard S Cardicola nonamo n. sp. (Digenea: Aporocotylidae) infects the heart of white seaperch, Phanerodon furcatus Girard, 1854 (Perciformes: Embiotocidae) (type host) in Monterey Bay, California, USA, and the branchial vessels of rubberlip seaperch, Rhacochilus toxotes Agassiz, 1854 (Embiotocidae) from Naples Reef, Santa Barbara Channel, off Santa Barbara, California. It is most easily distinguished from other species of Cardicola Short, 1953 by the combination of having i) rows of minute tegumental spines distributing along the entire ventrolateral... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2968216 Wed, 04 Nov 2009 00:00:00 +0100 2968216 http://www.medworm.com/index.php?rid=2948548&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19874071%26dopt%3DAbstract AFRICANASTRONGYLUS GIGANTICUS N. SP. (NEMATODA: TRICHOSTRONGYLOIDEA), IN AFRICAN BUFFLO (SYNCERUS CAFFER) (ARTIODACTYLA: BOVINAE) FROM UGANDA. J Parasitol. 2009 Oct 29;:1 Authors: Hoberg EP, Abrams A, Pilitt PA Africanastrongylus giganticus n. sp. is described based on large ostertagiine nematodes occurring in the abomasum of African buffalo, Syncerus caffer, from Uganda; this represents the second species recognized in the genus. Specimens of A. giganticus are characterized by large size (15-19 mm in total length), a strongly tapering synlophe in the cervical region, and a great number of ridges at all levels of the body (maximum 72 attained in the third quarter); numbers of ridges exceed that reported among any known genera and species of the Ostertagiinae. We refer A. gigant... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2948548 Thu, 29 Oct 2009 00:00:00 +0100 2948548 http://www.medworm.com/index.php?rid=2948547&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19874072%26dopt%3DAbstract Authors: McAllister CT, Bursey CR, Freed P Twenty individual amphibians representing 9 species within 6 families and 44 individual reptiles representing 15 species within 8 families from the Ucayali Region, Peru, were examined for helminths. Seven (35%) of the amphibians and 15 (34%) of the reptiles were found to harbor at least 1 species of helminth; 5 (25%) of the amphibians and 4 (9%) of the reptiles harbored multiple infections. A cyclophyllidean cestode and 14 taxa of nematodes within 7 families were found in the herpetofauna surveyed. Thirteen new host and 6 new geographic distribution records are documented. PMID: 19874072 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2948547 Thu, 29 Oct 2009 00:00:00 +0100 2948547 http://www.medworm.com/index.php?rid=2948546&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19874073%26dopt%3DAbstract Authors: Wang J, Qi YH, Diao LZ, Zheng XY, Li XL, Ma SX, Ji AP, Yin HC An outbreak of 81 cases of angiostrongyliasis cantonensis occurred in Beijing during June-September 2006. Epidemiological characteristics, clinical signs and symptoms, laboratory tests, imaging, and treatment data from the 81 AC patients were collected and analyzed. All cases had a history of eating raw, freshwater snails, and acquired Angiostrongylus cantonensis as a result. The incubation period ranged from 1 to 36 days. The main symptoms were fever, severe headache, neck stiffness, and skin paresthesia. A significant increase in eosinophilia occurred in the peripheral blood of 62 cases and in cerebrospinal fluid of 64 cases; 36 patients presented a linearly enhanced abnormal signal of the leptomeninges site durin... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2948546 Thu, 29 Oct 2009 00:00:00 +0100 2948546 http://www.medworm.com/index.php?rid=2944428&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19863158%26dopt%3DAbstract Authors: Walker MD, Rotherham ID An essential pre-requisite to understanding host-parasite relationships is a good knowledge of parasite ecology and life-history. Despite removing a significant amount of blood from their Common Swift (Apus apus) hosts no detrimental effect of parasitism by the Louse Fly (Crataerina pallida) has been found. This may be because little is known of the population dynamics of this parasite. We studied characteristics of Louse Fly populations that may influence its pathogenicity. Louse Fly populations were found to exhibit extremely high levels of prevalence and to be aggregated between nests. Nest populations were much higher than those seen in other studies. Louse Fly numbers declined throughout the swift breeding season. Populations were heavily female bi... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2944428 Wed, 28 Oct 2009 00:00:00 +0100 2944428 http://www.medworm.com/index.php?rid=2944427&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19863159%26dopt%3DAbstract RENAL INFECTION BY A NEW COCCIDIAN GENUS IN BIG BROWN BATS (EPTESICUS FUSCUS). J Parasitol. 2009 Oct 28;:1 Authors: Wuenschmann A, Wellehan J, Armien AG, Bemrick W, Barnes D, Averbeck G, Roback R, Schwabenlander M, D'Almeida E, Joki R, Childress A, Cortinas R, Gardiner C, Greiner EC A novel coccidian parasite from the kidney of big brown bats (Eptesicus fuscus) is described. This coccidian was associated with a generally mild, focal, or multifocal, well demarcated cortical renal lesion, less than 1 mm in diameter. The lesion represented cystic, dilated tubules with hypertrophied tubular epithelial cells and was present in the kidneys of 29 of 590 bats. Numerous coccidian parasites in various stages of development were present within the tubular epithelial cells and within the c... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2944427 Wed, 28 Oct 2009 00:00:00 +0100 2944427 http://www.medworm.com/index.php?rid=2944429&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19860532%26dopt%3DAbstract Authors: Loiseau C, Iezhova TA, Valkiūnas G, Chasar A, Hutchinson A, Buermann W, Smith TB, Sehgal RN Spatial heterogeneity influences the distribution, prevalence and diversity of haemosporidian parasites. Previous studies have found complex patterns of prevalence with respect to habitat characteristics and parasite genotype, and their interactions, but there is little information regarding how parasitemia intensity and the prevalence of co-infections may vary in space. Here, using both molecular methods and microscopy, we report an analysis of the variation of parasitemia intensity and co-infections of avian haemosporidian parasites (Plasmodium and Haemoproteus species) in 2 common African birds species, the yellow-whiskered greenbul (Andropadus latirostris) and the olive sunbir... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2944429 Tue, 27 Oct 2009 00:00:00 +0100 2944429 http://www.medworm.com/index.php?rid=2920091&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19842717%26dopt%3DAbstract THE INTERACTION OF LIGHT AND GRAVITY ON THE TRANSMISSION OF ECHINOSTOMA CAPRONI (DIGENEA: ECHINOSTOMATIDAE) CERCARIAE TO THE SECOND INTERMEDIATE HOST, BIOMPHALARIA GLABRATA(GASTROPODA: PULMONATA). J Parasitol. 2009 Oct 20;:1 Authors: Platt T, Greenlee H, Zelmer D, Platt T The current experiments were designed to assess the interaction of light and gravity on the transmission of Echinostoma caproni cercariae to the 2nd intermediate host, Biomphalaria glabrata. Transmission chambers were constructed of clear PVC pipe covered with a black sleeve to exclude light. Snails were constrained within the chamber to prevent movement, while permitting the cercariae to swim freely. A trial consisted of 2 infected B. glabrata shedding E. caproni cercariae placed at the center of the chamber ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2920091 Mon, 19 Oct 2009 23:00:00 +0100 2920091 http://www.medworm.com/index.php?rid=2912767&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19835434%26dopt%3DAbstract Authors: Lei SM, Ramer-Tait AE, Dahlin-Laborde RR, Mullin K, Beetham JK Leishmania chagasi, a causal agent of visceral leishmaniasis, requires passage through lab animals such as hamsters to maintain its virulence. Hamster infection is typically accomplished via cardiac puncture or intraperitoneal injection, procedures accompanied by risks of increased animal stress and death. The use of the hamster model also necessitates a regular supply of infected animals, since L. chagasi parasites newly isolated from an infected hamster can be grown in culture for only several weeks before loss of function/phenotype occurs. Towards decreasing animal usage and animal stress, experiments were performed to assess a more gentle inoculation procedure (saphenous vein inoculation) and the use of cryopre... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2912767 Thu, 15 Oct 2009 23:00:00 +0100 2912767 http://www.medworm.com/index.php?rid=2887549&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19821633%26dopt%3DAbstract INTRODUCTION OF KEVIN D. LAFFERTY AS THE HENRY BALDWIN WARD MEDALIST FOR 2009. J Parasitol. 2009 Oct 12;:1 Authors: Kuris A PMID: 19821633 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2887549 Sun, 11 Oct 2009 23:00:00 +0100 2887549 http://www.medworm.com/index.php?rid=2887548&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19821634%26dopt%3DAbstract MOLECULAR CHARACTERIZATION AND HISTOPATHOLOGY OF MYXOBOLUS KOI INFECTING THE GILLS OF A KOI CYPRINUS CARPIO, WITH AN AMENDED MORPHOLOGIC DESCRIPTION OF THE AGENT. J Parasitol. 2009 Oct 12;:1 Authors: Camus AC, Griffin MJ A Myxobolus sp., morphologically resembling M. toyamai, M. longisporus, and M. koi, was isolated from the gills of a koi Cyprinus carpio that died in an ornamental pond. Large plasmodia were localized within lamellae causing severe disruption of the normal branchial architecture, sufficient to compromise respiration. Although the case isolate shared several features with the aforementioned species, several key characteristics were most compatible with M. koi. In valvular view, spores were elongate and pyriform with a rounded posterior, 15.4 (14.5 - 16.5) microm... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2887548 Sun, 11 Oct 2009 23:00:00 +0100 2887548 http://www.medworm.com/index.php?rid=2872496&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19807196%26dopt%3DAbstract Authors: Church C, Neill A, Schotthoefer A To evaluate the seasonal prevalence of human intestinal parasites in the western states of Colorado, Utah, New Mexico and Montana, fecal samples were examined as part of routine diagnostic testing from patients experiencing gastrointestinal discomfort in August (summer) 2006, and January (winter) and April (spring) 2007. Parasite identification in positive samples was confirmed under light microscopy using wet mount and trichrome staining techniques. Seventy-eight of the 1083 patients surveyed (7.2%) in August tested positive for at least one species of intestinal parasite. Forty-eight of 726 (6.6%) patients and 51 of 795 (6.4%) tested positive for at least one species in January and April, respectively. Blastocystis hominis was the most preva... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2872496 Mon, 05 Oct 2009 23:00:00 +0100 2872496 http://www.medworm.com/index.php?rid=2872500&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19803542%26dopt%3DAbstract SURVEILLANCE FOR ANTIBODIES TO LEISHMANIA SPP. IN DOGS FROM SRI LANKA. J Parasitol. 2009 Oct 5;:1 Authors: Rosypal AC, Tripp S, Kinlaw C, Hailemariam S, Tidwell RR, Lindsay DS, Rajapakse RP, Sreekumar C, Dubey JP The global distribution of leishmaniasis is rapidly expanding into new geographic regions. Dogs are the primary reservoir hosts for human visceral leishmaniasis caused by infection with Leishmania infantum. Natural infections with other Leishmania species can occur in dogs, but their role as reservoir hosts for other species of Leishmania is uncertain. Leishmania donovani is traditionally considered a visceralizing anthroponotic species, however, cutaneous leishmaniasis caused by L. donovani has been reported in Sri Lanka. In the present study, serum from 114 dogs in S... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2872500 Sun, 04 Oct 2009 23:00:00 +0100 2872500 http://www.medworm.com/index.php?rid=2872499&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19803543%26dopt%3DAbstract Authors: Mackenzie CD, Huntington MK, Wanji SJ, Lovato RV, Eversole RR, Geary TG Immunocytochemical examination of onchocercal nodule tissues containing adult Onchocerca volvulus using immuno-markers for blood and lymphatic vessels (Factor VIII, D2-40, podoplanin, Prox-1 and Lyve1) shows a distinct pattern of distribution of these vessels within nodules. Blood vessels were commonly seen associated with organized lymphoid cellular aggregates in the both the outer and inner areas of the nodules. In contrast, the majority of the lymphatic vessel components were present in the central zones in close apposition to the adult parasites, or associated with microfilariae in the outer areas of the nodule. These findings suggest an intimate relationship between adult O.volvulus and lymphatic vess... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2872499 Sun, 04 Oct 2009 23:00:00 +0100 2872499 http://www.medworm.com/index.php?rid=2872498&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19803544%26dopt%3DAbstract Authors: Pérez-Ponce de León G, Choudhury A Freshwater fish helminth parasites are undoubtedly the most well-known group among vertebrate parasites in Mexico, composed of 37 adult and 43 larval (metacercariae) trematodes; 62 monogeneans; 15 adult and 18 larval (metacestode) cestodes; 6 adult and 4 larval (cystacanth) acanthocephalans, and 54 adult and 15 larval nematodes (L3). Here, we evaluate the extent of the inventory of freshwater fish helminths of Mexico using species accumulation curves and discuss the implications of DNA-based taxonomic methods in our understanding of the helminth biodiversity in freshwater fishes. Future directions for the study of the helminth parasites of freshwater fishes are proposed, particularly the role of DNA based species delimitation criter... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2872498 Sun, 04 Oct 2009 23:00:00 +0100 2872498 http://www.medworm.com/index.php?rid=2872497&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19803545%26dopt%3DAbstract Authors: Warburton EM, Zelmer DA To evaluate their potential for survival in a vertebrate host, dauer larvae from 7 species of rhabditid nematodes were subjected to in vitro conditions designed to emulate those of a vertebrate digestive tract. Dauer larvae from 3 of the 7 species, selected for their ability to survive elevated temperatures and low pH, and representing differing types of phoretic associations with invertebrate hosts, were fed to frogs to examine their ability to survive passage through a vertebrate digestive system. The degree of invasiveness of the phoretic association that dauer larvae had with their invertebrate hosts did not correspond to patterns of in vitro survivorship for any of the experimental conditions. When consumed with a prey item, dauer larvae from all 3... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2872497 Sun, 04 Oct 2009 23:00:00 +0100 2872497 http://www.medworm.com/index.php?rid=2866050&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19799488%26dopt%3DAbstract Authors: Schwarz RS, Fetterer RH, Rosenberg GH, Miska KB Using the Eimeria spp. population that infect chickens as a model for coccidian biology, we aimed to survey the transcriptome of E. maxima and contrast it to the 2 other Eimeria spp. for which transcriptome data are available, E. tenella and E. acervulina. Examining specifically the asexual intracellular development stage, the merozoite, we used expressed sequence tag (EST) analysis to provide experimental evidence of transcription and a framework for understanding the merozoite stage of E. maxima. Of 2,680 individual ESTs obtained, 48.2% shared most significant (E<10-5) homology to sequences from other apicomplexan species, primarily other Eimeria spp. and Toxoplasma gondii, while 47.5% were unique. Annotation of these ESTs e... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2866050 Sat, 03 Oct 2009 23:00:00 +0100 2866050 http://www.medworm.com/index.php?rid=2866049&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19799489%26dopt%3DAbstract Authors: Faria E, Cavalcanti E, Madeiros E, Pinheiro-Júnior J, Azevedo S, Athayde A, Mota R The aim of this study was to identify risk factors associated with Neospora caninum seropositivity in sheep from the State of Alagoas, in the Northeast region of Brazil. Twenty-six herds were selected and blood samples were collected from 343 animals > 6 months old. The indirect fluorescent antibody test (IFAT) was used for serological diagnosis of N. caninum infection. Epidemiological questionnaires were applied for each herd in order to identify the risk factors associated with infection. Thirty-three (9.6%) animals tested positive for anti-N. caninum IgG antibodies, with titers ranging from 1:50 to 1:1,600. Fourteen herds (53.8%) presented at least one seropositive animal. Risk factor... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2866049 Sat, 03 Oct 2009 23:00:00 +0100 2866049 http://www.medworm.com/index.php?rid=2866048&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19799490%26dopt%3DAbstract A ZOONOTIC GENOTYPE OF ENTEROCYTOZOON BIENEUSI IN HORSES. J Parasitol. 2009 Oct 4;:1 Authors: Santin-Duran M, Fayer R, Cortes Vecino JA This is the first report of Enterocytozoon bieneusi in an equid species. Feces from 195 horses from 4 locations in Colombia were examined for E. bieneusi by PCR. Of these, 21 horses (10.8%) were found positive for E. bieneusi. The prevalence of E. bieneusi in horses <1 yr of age was significantly higher (23.7%) than in horses > 1 yr of age (2.5%). No significant differences in prevalence were observed between male (13.7%) and female horses (9%). Sequencing of the ITS region of the SSUrRNA locus identified three genotypes. Two genotypes appear to be unique to horses and were named Horse 1 and Horse 2. A third genotype, identified as genoty... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2866048 Sat, 03 Oct 2009 23:00:00 +0100 2866048 http://www.medworm.com/index.php?rid=2866047&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19799491%26dopt%3DAbstract We examined stool samples from a habituated group of chimpanzees (Pan troglodytes schweinfurthii) at Mahale Mountains National Park in western Tanzania for trophozoites of the entodiniomorphid ciliate, Troglodytella abrassarti Brumpt and Joyeux, 1912. In our study, fresh fecal samples from identified individuals were collected immediately after defecation and fixed in 10% formalin solution. A total of 52 samples from 38 chimpanzees (61% of 62 chimpanzees in the group) were examined using a direct smear method. A stool sample from an individual collection date from an individual chimpanzee was examined up to 3 separate times before it was called negative. Fourty-eight (92%) of the 52 samples were positive and stools from 37 (97%) of the 38 chimpanzees were positive for trophozoites of T. ar... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2866047 Sat, 03 Oct 2009 23:00:00 +0100 2866047 http://www.medworm.com/index.php?rid=2866046&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19799492%26dopt%3DAbstract Authors: McHenry AM, Barnwell JW, Adams JH Plasmodium vivax is the second leading cause of malaria worldwide. Invasion of human erythrocytes by P. vivax merozoites is dependent upon the interaction between the parasite Duffy binding protein (PvDBP) and the erythrocyte Duffy antigen receptor. Therefore, disruption of this vital interaction is an attractive target for therapeutic intervention. Although Aotus nancymaae is a commonly used primate model for human P. vivax infections, it has not been confirmed that the interaction between Ao. nancymaae erythrocytes and P. vivax is Duffy antigen dependent. Our results indicate that normal Ao. nancymaae erythrocytes readily bind to PvDBPII and that this binding is completely abolished with chymotrypsin treatment of the erythrocytes. Furthermor... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2866046 Sat, 03 Oct 2009 23:00:00 +0100 2866046 http://www.medworm.com/index.php?rid=2866051&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19799487%26dopt%3DAbstract STOMACH NEMATODES (MASTOPHORUS MURIS) IN RATS (RATTUS RATTUS) ARE ASSOCIATED WITH COCONUT (COCOS NUCIFERA) HABITAT AT PALMYRA ATOLL. J Parasitol. 2009 Oct 2;:1 Authors: Lafferty KD, Hathaway SA, Wegmann AS, Shipley FS, Backlin AR, Helm J, Fisher RN Black rats (Rattus rattus) and their stomach nematodes (Mastophorus muris) were historically introduced to islets at Palmyra Atoll in the central Pacific Line Islands. To investigate patterns of parasitism, we trapped rats and quantified nematodes at 13 islets of various size and habitat type. Most rats were parasitized (59%) with an average of twelve worms per parasitized rat. Islet size did not greatly influence parasitism. Nematodes did not appear to affect rat condition (weight to skull length). The only strong and consistent fac... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2866051 Thu, 01 Oct 2009 23:00:00 +0100 2866051 http://www.medworm.com/index.php?rid=2856183&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19788337%26dopt%3DAbstract INTRODUCTION OF MIODRAG (MIKE) BELOSEVIC, RECIPIENT OF 2009 CLARK P. READ MENTOR AWARD. J Parasitol. 2009 Sep 29;:1 Authors: Hanington P There is no abstract for this submission. PMID: 19788337 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2856183 Mon, 28 Sep 2009 23:00:00 +0100 2856183 http://www.medworm.com/index.php?rid=2856182&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19788338%26dopt%3DAbstract Authors: Janovy Jr J Minutes of the 2009 Annual ASP Business Meeting held at the Crowne Plaza in Knoxville, Tennessee. PMID: 19788338 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2856182 Mon, 28 Sep 2009 23:00:00 +0100 2856182 http://www.medworm.com/index.php?rid=2856181&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19788339%26dopt%3DAbstract Authors: Janovy Jr J Minutes of the 2009 ASP Council Meeting held at the Crowne Plaza in Knoxville, Tennessee. PMID: 19788339 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2856181 Mon, 28 Sep 2009 23:00:00 +0100 2856181 http://www.medworm.com/index.php?rid=2847356&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19785477%26dopt%3DAbstract Authors: Francisco CJ, Hermida MA, Santos MJ The primary aim of the present study was to conduct a 1 yr parasitological survey of a Mytilus galloprovincialis mussel population from the Aveiro Estuary, Portugal. In addition, we attempted to assess the host response to parasites by examining host histopathology, including an evaluation of hemocyte infiltration and parasite encapsulation. The parasites present (prevalence) included: 1 protozoan, Nematopsis sp. (70%); 1 turbellarian, Urastoma cyprinae, (39%); 2 trematodes, Diphtherostomum sp. (58%) and Prosorhynchus crucibulum (0.3%); 3 crustaceans, Bathylaophonte azorica (0.3%) and with 2 species of Mytilicola spp. (3.5%), i.e., M. intestinalis and M. orientalis. Highest prevalences for the most abundant species occurred in summer and aut... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2847356 Sun, 27 Sep 2009 23:00:00 +0100 2847356 http://www.medworm.com/index.php?rid=2839477&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19780628%26dopt%3DAbstract PRESIDENTIAL ADDRESS: PARASITES ON A SHRINKING PLANET. J Parasitol. 2009 Sep 25;:1 Authors: Conn DB * Presidential address: American Society of Parasitologists, 16 August 2009, Knoxville, Tennessee. PMID: 19780628 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2839477 Thu, 24 Sep 2009 23:00:00 +0100 2839477 http://www.medworm.com/index.php?rid=2835026&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19778155%26dopt%3DAbstract Authors: Belosevic MM PMID: 19778155 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2835026 Wed, 23 Sep 2009 23:00:00 +0100 2835026 http://www.medworm.com/index.php?rid=2835025&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19778156%26dopt%3DAbstract Authors: Graczyk T none. PMID: 19778156 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2835025 Wed, 23 Sep 2009 23:00:00 +0100 2835025 http://www.medworm.com/index.php?rid=2835024&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19778157%26dopt%3DAbstract THE ACCIDENTAL PARASITOLOGIST: ACCEPTANCE OF THE 2009 HENRY BALDWIN WARD MEDAL. J Parasitol. 2009 Sep 24;:1 Authors: Lafferty KD No Abstract. PMID: 19778157 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2835024 Wed, 23 Sep 2009 23:00:00 +0100 2835024 http://www.medworm.com/index.php?rid=2804987&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19757873%26dopt%3DAbstract Authors: Heins DC, Baker JA Parasitic castration may result from manipulation of host energy allocation away from reproduction, which should result in castration of lightly infected hosts as well as heavily infected ones. Castration also may result from nutrient theft alone, which incidentally influences host energy allocation to reproduction and should cause reproduction to end in heavily infected hosts. Although the pseudophyllidean cestode Schistocephalus pungitii is a castrator of ninespine stickleback fish (Pungitius pungitius), the cause and significance of castration remain unknown. We used predictions about reproductive capacity in lightly and heavily infected hosts and host size (age) at which castration occurs to address these questions. In Airolo Lake, Alaska, we found that ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2804987 Tue, 15 Sep 2009 23:00:00 +0100 2804987 http://www.medworm.com/index.php?rid=2797737&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19747015%26dopt%3DAbstract REDESCRIPTION OF GYROPUS PARVUS (EWING, 1924) (INSECTA: PHTHIRAPTERA: AMBLYCERA: GYROPIDAE) FROM (RODENTIA: CTENOMYIDAE: CTENOMYS IN PATAGONIA, ARGENTINA. J Parasitol. 2009 Sep 13;:1 Authors: Martino NS, Romero MD, Castro DD A detailed redescription of Gyropus parvus (Phthiraptera: Amblycera: Gyropidae) is given based on specimens collected from the type host, Ctenomys colburni Allen 1903, and the type locality, Estancia Huanuluán, Provincia de Rio Negro. We expand and provide new chaetotaxy. New scanning electron microscopy images providing microstructural details of adults and eggs of G. parvus obtained from topotype specimens are included. Sexual dimorphism was mainly shown by differences in body size and abdominal chaetotaxy, with females being 17.5 % larger than males... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2797737 Sat, 12 Sep 2009 23:00:00 +0100 2797737 http://www.medworm.com/index.php?rid=2797736&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19747016%26dopt%3DAbstract A NEW SPECIES OF PSEUDODELPHIS (DRACUNCULOIDEA: GUYANEMIDAE) IN THE INTERTIDAL FISH SCARTICHTHYS VIRIDIS (BLENNIIDAE) FROM CENTRAL CHILE. J Parasitol. 2009 Sep 13;:1 Authors: Munoz GI A new species of nematode, Pseudodelphis chilensis n. sp., is described. This parasite was found in muscles of the pectoral fins of a blenniid fish, Scartichthys viridis, from central Chile. The new species differs from the other 2 described (P. oligocotti Adamson and Roth 1990, and P. limnicola Brugni and Viozzi 2006) for its longer glandular esophagus and a small caecum at the beginning of the glandular esophagus, both characteristics are in males and females. In addition, the male of P. chilensis does not have an adanal caudal papillae and it has longer spicules than the other 2 species. This i... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2797736 Sat, 12 Sep 2009 23:00:00 +0100 2797736 http://www.medworm.com/index.php?rid=2797735&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19747017%26dopt%3DAbstract Authors: Lecona A, Rodriguez MH, Argotte Ramos RS, Alvarado Delgado A, Rodriguez M Plasmodium spp. development within mosquito vectors includes invasive ookinete and sporozoites stages which display gliding movements during invasion of midgut and salivary glands, respectively. Sporozoite gliding has been well documented and several proteins released during sporozoite's locomotion have been described. However, proteins on the ookinete gliding trails are poorly described. In the present study, we documented that 2 proteins, Pbs25 and circumsporozoite thrombospondin related protein (CTRP), are released during Plasmodium berghei ookinete gliding on a solid surface substrate. PMID: 19747017 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2797735 Sat, 12 Sep 2009 23:00:00 +0100 2797735 http://www.medworm.com/index.php?rid=2797734&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19747018%26dopt%3DAbstract Authors: Murphy TM, Berzano M, O'Keeffe SM, Cotter DM, McEvoy SE, Thomas KA, O'Maoileidigh NP, Whelan KF The molecular identification and histopathology of parasitic larvae present in the abdominal cavity of Atlantic salmon (Salar salmo) grilse caught in fish traps on their natal river in the west of Ireland and post-smolts collected during experimental trawls on the continental shelf edge of the northeast Atlantic Ocean is described. Larvae in the adult and juvenile salmon were identified as Anisakis simplex sensu stricto by PCR amplification and RFLP and sequencing of the ITS1 gene and PCR amplification and sequencing of the cox2 gene. Parasitic larvae in the grilse were either encapsulated in the abdominal mesentery associated with the pyloric caeca or on the serosal surface of the ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2797734 Sat, 12 Sep 2009 23:00:00 +0100 2797734 http://www.medworm.com/index.php?rid=2797733&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19747019%26dopt%3DAbstract Authors: Hongyu H, Jiaojiao L, Qiping Z, Hui D, Lianlian J, Meiqian X, Shunhai Z, Bing H Avian coccidiosis, a major parasitic disease of poultry, is caused by Eimeria spp. infection. It inflicts severe economic losses on the poultry industry. To further understand the molecular basis of sporulation and invasion of Eimeria spp., suppression subtractive hybridization (SSH) and microarray approaches were combined to identify novel and important genes involved in the development and invasion of the early stages of Eimeria tenella. 3 subtractive cDNA libraries were constructed for 3 stages of E. tenella, including unsporulated oocysts, sporulated oocysts and sporozoites. A subset of clones was selected from the 3 subtractive libraries to construct cDNA microarrays. Microarray analysis was u... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2797733 Sat, 12 Sep 2009 23:00:00 +0100 2797733 http://www.medworm.com/index.php?rid=2782666&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19737026%26dopt%3DAbstract A NEW HEDRURID SPECIES (NEMATODA) FROM GALAXIID FISHES IN PATAGONIA (ARGENTINA), AND INFECTION OF AMPHIPODS AS INTERMEDIATE HOST. J Parasitol. 2009 Sep 8;:1 Authors: Brugni NL, Viozzi GP During a parasite survey of galaxiid fishes (Galaxiidae) from Patagonian Andean lakes, a new species of nematode, Hedruris suttonae n. sp. was collected from the stomach of the native Galaxias maculatus (Jenyns) and G. platei (Steindachner). Specimens were examined by light and scanning electron microscopy, especially head morphology, female caudal prehensile structure, and distribution of spines. The new species is distinguished by body and tail size, morphology and size of spicules, the arrangement of caudal papillae in the male, the female caudal hook, and size of eggs. Hyalella patagonica (... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2782666 Mon, 07 Sep 2009 23:00:00 +0100 2782666 http://www.medworm.com/index.php?rid=2782665&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19737027%26dopt%3DAbstract TOLL-LIKE RECEPTOR 2 AND MUC2 EXPRESSION ON HUMAN INTESTINAL EPITHELIAL CELLS BY GYMNOPHALLOIDES SEOI ADULT ANTIGEN. J Parasitol. 2009 Sep 8;:1 Authors: Guk SM, Lee KD, Chai JY Goblet cell hyperplasia and mucin hypersecretion are important for the expulsion of the intestinal trematode, Gymnophalloides seoi, from mice. However, regulatory mechanisms underlying these processes remain elusive. To better understand the effects of G. seoi antigen on the host's intestinal epithelial cells, we determined whether G. seoi induces expression of Toll-like receptors (TLRs) and mucin-related (MUC) genes on a human intestinal epithelial cell line (HT29 cells). We treated HT29 cells with G. seoi or other helminth adult antigens and measured mRNAs of TLRs and MUCs. We also performed reverse tr... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2782665 Mon, 07 Sep 2009 23:00:00 +0100 2782665 http://www.medworm.com/index.php?rid=2775337&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19731970%26dopt%3DAbstract SYLVATIC TRICHINELLA INFECTION IN FINLAND. J Parasitol. 2009 Sep 4;:1 Authors: Airas NA, Saari SA, Mikkonen TM, Virtala AM, Pellikka JP, Oksanen A, Isomursu MH, Kilpelä SS, Lim CW, Sukura AK Although human infections have not been reported in Finland for several decades, and Trichinella infection in pork has become practically extinct in the last decade, sylvatic Trichinella spp. infection is still highly prevalent in Finland. Muscle digestion of 2,483 carnivorous wild animals from 9 host species during 1999-2005 showed 617 positive animals (24.8%). Molecular identification from 328 larval isolates revealed 4 different endemic Trichinella species, i.e., T. nativa, T. spiralis, T. britovi, and T. pseudospiralis. Seven percent of the infected animals carried mixed infections... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2775337 Thu, 03 Sep 2009 23:00:00 +0100 2775337 http://www.medworm.com/index.php?rid=2745869&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19712012%26dopt%3DAbstract Authors: Huang CC, Ji DD, Chiang YC, Teng HJ, Liu HJ, Chang CD, Wu YH Since the 1970s, no information on simian malaria has been documented in Taiwan, an area that is free from human malaria. To update the prevalence of simian malaria, a molecular-based survey was performed. Blood samples from 286 Formosan macaques (Macaca cyclopis) were tested for Plasmodium species by microscopy and nested polymerase chain reaction. Furthermore, the filed isolates were characterized by sequence the 42 kDa fragment of the merozoite surface protein 1 (MSP-142). Of the 286 blood samples analyzed, seven (2.4%) tested were positive by microscopy and nested-PCR. All malaria-infected Formosan macaques were collected from southern Taiwan, whereas no evidence of malarial parasites was observed among monkeys f... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2745869 Wed, 26 Aug 2009 23:00:00 +0100 2745869 http://www.medworm.com/index.php?rid=2745868&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19712013%26dopt%3DAbstract We examined 70 dog sera using the qualitative immunochromatographic dipstick tests (ICT) based on recombinant antigens specific for visceral leishmaniasis and AT. Antibodies to visceralizing Leishmania were not detected in Grenadian dogs by ICT. Using the canine dipsticks for AT, antibodies to T. cruzi were determined in 3 (4.3%) of the 70 dogs. Results from this study indicate that dogs in Grenada are exposed to T. cruzi at a low rate, but not to visceralizing Leishmania parasites. PMID: 19712013 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2745868 Wed, 26 Aug 2009 23:00:00 +0100 2745868 http://www.medworm.com/index.php?rid=2745867&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19712014%26dopt%3DAbstract Authors: McAllister CT, Bursey CR, Freed P Thirty-four amphibians (6 families, 12 species) and 28 reptiles (5 families, 16 species) from Paraguay were examined for helminths. Fifteen (44%) amphibians and 6 (21%) reptiles were found to harbor at least 1 species of helminth; 4 (12%) amphibians and 2 (7%) reptiles harbored multiple infections. Three species of Cestoidea and 17 species of Nematoda were found in the herptiles surveyed. Fourteen new host and 12 new locality records are documented, including the first report of the filaroid nematode, Macdonaldius grassi (Caballero, 1954) Chabaud and Frank, 1961, from South America. PMID: 19712014 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2745867 Wed, 26 Aug 2009 23:00:00 +0100 2745867 http://www.medworm.com/index.php?rid=2729931&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19697968%26dopt%3DAbstract Authors: Kimura M, Darbro JM, Harrington LC Assessing parasite specificity to vector is crucial to understanding the emergence of vector-borne diseases and the evolution of parasite diversity. Avian malaria parasites have a cosmopolitan distribution and broad avian host range, which together predict they are vector-generalists, but little is known about parasite-vector associations in the wild. We tested this prediction by asking if 5 different mosquito species, known to feed on birds and abundant in the northeastern USA, were naturally infected in the field with identical avian Plasmodium spp. lineages. Mosquitoes were not pooled but rather analyzed individually, and, possibly as a result, lineage diversity was higher than reported in previous avian malaria vector studies. Plasmodium ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2729931 Fri, 21 Aug 2009 23:00:00 +0100 2729931 http://www.medworm.com/index.php?rid=2729928&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19697969%26dopt%3DAbstract SOME HALIOTREMA (MONOGENEA, DACTYLOGYRIDAE) FROM CULTURED GROUPER (EPINEPHELUS SPP.) WITH EMPHASIS ON THE PHYLOGENETIC POSITION OF HALIOTREMA CROMILEPTIS. J Parasitol. 2009 Aug 22;:1 Authors: Dang BT, Levsen A, Schander C, Bristow GA Three Haliotrema species are reported from Vietnamese grouper. Morphological and morphometric characters show minor deviations from original descriptions of H. cromileptis Young, 1968 and H. epinepheli Young, 1968. The third encountered species (Haliotrema sp.) appears to be new to science. Genetically, H. cromileptis clusters with Bravohollisia, Pseudohaliotrema, and Haliotrema. The group is well supported by partial LSU rDNA, complete SSU rDNA, and partial SSU + ITS1 rDNA analyses. Ingroup phylogenetic relationships are not well resolved. Haliotr... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2729928 Fri, 21 Aug 2009 23:00:00 +0100 2729928 http://www.medworm.com/index.php?rid=2729927&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19697970%26dopt%3DAbstract MOLECULAR IDENTIFICATION OF SCHISTOSOMA MATTHEEI FROM FECES OF KINDA (PAPIO CYNOCEPHALUS KINDAE) AND GRAYFOOT BABOONS (PAPIO CYNOCEPHALUS GRISEIPES) IN ZAMBIA. J Parasitol. 2009 Aug 22;:1 Authors: Weyher A, Phillips-Conroy J, Fischer K, Weil G, Chansa W, Fischer P Terminal-spined Schistosoma eggs were detected in several groups of baboons living in Kafue National Park in central Zambia. A total of 166 fecal samples was screened; egg prevalence overall ranged between 7-10%, while infection intensities were low. Formalin-fixed eggs had an average length of 144.5 mum and a breadth of 48.3 mum, but the schistosome species could not be unambiguously identified by size or morphology. We used molecular methods to definitively identify the parasite species. Parasite DNA was amplified f... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2729927 Fri, 21 Aug 2009 23:00:00 +0100 2729927 http://www.medworm.com/index.php?rid=2729926&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19697971%26dopt%3DAbstract PENETRATION AND MIGRATION SUCCESS OF DIPLOSTOMUM SPP. CERCARIAE IN ARCTIC CHARR. J Parasitol. 2009 Aug 22;:1 Authors: Voutilainen A, Huuskonen H, Taskinen J We exposed 2 groups of young-of-the-yr Arctic charr (Salvelinus alpinus) singly to 54 +/- 2 (mean +/- SE) Diplostomum spp. cercariae that had emerged from 4 randomly sampled snail hosts Lymnaea stagnalis. The rearing tanks of the fish received Diplostomum spp. cercariae via the incoming water, and therefore 18 of the 36 fish had parasites in their eyes prior to the experimental exposure. Of the Diplostomum spp. cercariae presented to the fish, 19% penetrated, and 46% of those that had penetrated the fish migrated successfully to the lens of the fish eye. The migration success of Diplostomum spp. from the site of penetration... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2729926 Fri, 21 Aug 2009 23:00:00 +0100 2729926 http://www.medworm.com/index.php?rid=2720888&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19691417%26dopt%3DAbstract HAEMOPROTEUS CYANOMITRAE SP. NOV. (HAEMOSPORIDA, HAEMOPROTEIDAE) FROM A WIDESPREAD AFRICAN SONGBIRD, THE OLIVE SUNBIRD CYANOMITRA OLIVACEA. J Parasitol. 2009 Aug 19;:1 Authors: Iezhova TA, Valkiunas G, Loiseau C, Smith TB, Sehgal RN Haemoproteus (Parahaemoproteus) cyanomitrae n. sp. (Haemosporida, Haemoproteidae) was found in the olive sunbird Cyanomitra olivacea (Nectariniidae) in rainforests of tropical Africa. It is described based on the morphology of its blood stages and a segment of the mitochondrial cytochrome b gene (GenBank accession no. FJ404696), which can be used for molecular identification and diagnosis of this species. Fully-grown gametocytes of new parasite are similar to many other species of haemoproteids of passeriform birds, so are not easily distinguishable... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2720888 Tue, 18 Aug 2009 23:00:00 +0100 2720888 http://www.medworm.com/index.php?rid=2713366&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19685936%26dopt%3DAbstract Authors: Viana LA, Paiva F, Coutinho ME, Lourenço-de-Oliveira R The prevalence and parasitaemia of Hepatozoon caimani in the natural population of the caiman, Caiman yacare, from the Pantanal area, state of Mato Grosso do Sul, central Brazil, were evaluated according to gender and mo of capture from July 2006 to February 2008. Blood samples were obtained bimonthly from a total of 229 caimans, and 76% were positive. Prevalence varied significantly according to sampling mo and animal size. Almost all adults (100%) and young-adults (97%) were positive, while 63% of juvenile caimans were positive and all of the youngest individuals were negative. These results indicate that caimans are infected for the first time as juveniles. The mean parasitaemia in blood was 13.5+/-13.0 (n = 174; 1... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2713366 Sun, 16 Aug 2009 23:00:00 +0100 2713366 http://www.medworm.com/index.php?rid=2713365&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19685937%26dopt%3DAbstract SYPHACIA (SYPHACIA) RIFAII N. SP. (NEMATODA: OXYURIDAE) COLLECTED FROM BUNOMYS SPP. (RODENTIA: MURIDAE) IN CENTRAL SULAWESI, INDONESIA. J Parasitol. 2009 Aug 17;:1 Authors: Dewi K, Hasegawa H Syphacia (Syphacia) rifaii sp. n. (Nematoda: Oxyuridae) is described from endemic Bunomys chrysocomus and B. prolatus (Rodentia: Muridae) on Sulawesi Island, Indonesia. The new species is closest morphologically to Syphacia (Syphacia) sulawesiensis, parasitic in Rattus xanthurus on Sulawesi Island, by having large vesicular lateral alae in males, but is readily distinguished by having smaller body, round cephalic plate in both sexes, absence of lateral alae in female, longer relative distance between excretory pore and vulva, and smaller eggs. Syphacia (S.) rifaii is surmised to be a speci... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2713365 Sun, 16 Aug 2009 23:00:00 +0100 2713365 http://www.medworm.com/index.php?rid=2713364&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19685938%26dopt%3DAbstract IDENTIFICATION OF LEUCOCYTOZOON TODDI GROUP (HAEMOSPORIDA, LEUCOCYTOZOIDAE), WITH REMARKS ON THE SPECIES TAXONOMY OF LEUCOCYTOZOIDS. J Parasitol. 2009 Aug 17;:1 Authors: Valkiunas G, Sehgal RN, Iezhova TA, Hull AC The current taxonomy of leucocytozoids (Haemosporida, Leucocytozoidae) is based on the morphology of blood stages of the parasites and limited information about their specificity. Recent molecular studies have revealed a remarkable genetic diversity of leucocytozoids, indicating that their taxonomic diversity may be greater than in the current classifications. We addressed this issue using morphological data and phylogenetic analysis of cytochrome b gene of 14 positively identified species of avian haemosporidians. Based on the current taxonomy, Leucocytozoon toddi is... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2713364 Sun, 16 Aug 2009 23:00:00 +0100 2713364 http://www.medworm.com/index.php?rid=2713363&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19685939%26dopt%3DAbstract THREE NEW HEPATOZOON SPECIES (APICOMPLEXA: HEPATOZOIDAE) INFECTING THE FLORIDA KINGSNAKE, LAMPROPELTIS GETULA FLORIDANA. J Parasitol. 2009 Aug 17;:1 Authors: Telford Jr SR The Florida kingsnake, Lampropeltis getula floridana, is host to three species of Hepatozoon at the type locality, Miramar, Broward County, and 2, possibly all 3 species at Cedar Key, Levy County, approximately 480 km to the northwest. Hepatozoon eurytopis, n. sp. was present also in Diadophis punctatus and Elaphe guttata in Jupiter Farms, Palm Beach County, and in Thamnophis sirtalis at Gainesville, Alachua County. Specific identity in D. punctatus was determined from gamont morphology, and from sporogonic stages and gamont morphology in the infections obtained from E. guttata and T. sirtalis. Infection with... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2713363 Sun, 16 Aug 2009 23:00:00 +0100 2713363 http://www.medworm.com/index.php?rid=2713362&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19685941%26dopt%3DAbstract Authors: Kodádková A, Kváč M, Ditrich O, Sak B, Xiao L Cryptosporidium infection in captive exotic mammals was investigated using staining and molecular biological methods. A total of 323 faecal samples from 100 mammalian species (62 Artiodactyla, 33 Rodentia, 3 Perissodactyla and 2 Paenungultata) in four zoological gardens in the Czech Republic were examined. Only in a Reticulated giraffe (Giraffa camelopardalis reticulata) sample Cryptosporidium infection was detected. The partial small subunit rRNA sequence obtained from the isolate was identical to sequences of Cryptosporidium muris in Rock hyrax (Procavia capensis) and Bactrian camel (Camelus bactrianus). Neonatal BALB/c mice inoculated with 1x103 fresh oocysts of Cryptosporidium giraffe isolate did not produc... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2713362 Sun, 16 Aug 2009 23:00:00 +0100 2713362 http://www.medworm.com/index.php?rid=2713368&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19681648%26dopt%3DAbstract Authors: Cañas L, Sampedro MP, Fariña AC Two anglerfish species, Lophius piscatorius and Lophius budegassa, caught off the north and northwest coast of Spain in 2007, were examined for parasite infections. Four parasite taxa were chosen for study: Anisakis larvae Type I (sensu Berland, 1961), Hysterothylacium rigidum (Nematoda), Spraguea lophii (Microsporidia), and Chondracanthus lophii (Copepoda). Prevalence, intensity, and abundance were determined and related to host size and sex. The abundance of Anisakis Type I significantly increased with size in both anglerfish species and Chondracanthus lophii was also more abundant in larger L. piscatorius specimens. The abundance of Hysterothylacium rigidum and the prevalence of Spraguea lophii were unrelated to host size. The infes... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2713368 Fri, 14 Aug 2009 23:00:00 +0100 2713368 http://www.medworm.com/index.php?rid=2713367&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19681649%26dopt%3DAbstract Authors: Le Bailly M, Mouze S, Chaves Da Rocha G, Heim JL, Lichtenberg R, Dunand F, Bouchet F For the first time, a palaeoparasitological study was performed on twelve mummies from a Christian cemetery excavated in El Deir, Oasis of Kharga, Egypt. The analysis revealed the presence of a tapeworm, probably Taenia sp., in a single individual. The presence of only taeniasis is surprising, and raises the question of the relationship between residents of Egyptian oases and those residing in the Nile Valley. This result suggests information on the health status of the ancient oasis population, and re-enforces hypothesis regarding possible social stratification of the inhabitants. The work must be continued, if we are to acquire additional knowledge dealing with life in ancient Egyptian oases... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2713367 Fri, 14 Aug 2009 23:00:00 +0100 2713367 http://www.medworm.com/index.php?rid=2713370&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19681646%26dopt%3DAbstract Authors: Salam ST, Mir MS The present 2-yr study carried on the prevalence and an associated lesions of the nematode Cheilospirura (Acuaria) hamulosa (Nematoda, Acuarioidea) in indigenous fowl collected from different localities of Kashmir Valley revealed annual prevalence for the nematode for 1st and 2nd yr of study to be 3.4% (8/233) and 3.7% (9/245), respectively, with an overall prevalence of 3.5% (17/478). Parasitized birds did not present with clinical signs. In spite of the low parasite burdens, the lesions induced by C. hamulosa were severe. Histological examination of the infected gizzard revealed discrete and coalescing, nodular and cystic lesions in mucosa and musculature, which contained sections of the parasite. Cellular reaction in the lesions was characterized by a large... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2713370 Thu, 13 Aug 2009 23:00:00 +0100 2713370 http://www.medworm.com/index.php?rid=2713369&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19681647%26dopt%3DAbstract Authors: Hauck R, Armstrong PL, McDougald L Histomonads grew rapidly in Dwyer's medium, consisting of medium 199, chick embryo extract, serum and rice powder, reaching populations of about 5x105 in 3-4 days, followed by a rapid decline. Substitution of other cell culture media (L-15, MEM, or RPMI) for M199 was also satisfactory, except for Waymouth's medium, which produced a lower and later peak of growth. Omission of serum or rice rendered media unsuitable for growth. Bacteriological culture media did not support growth of histomonads. Media which included glucose were unsuitable because the pH of the cultures dropped to about 4. The effect of glucose on pH was due to action of bacteria. Oxygen inhibited growth of histomonads: There was no growth when culture tubes were not capped tig... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2713369 Thu, 13 Aug 2009 23:00:00 +0100 2713369 http://www.medworm.com/index.php?rid=2699971&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19673589%26dopt%3DAbstract POPULATION DYNAMICS OF ASCARIS SUUM IN TRICKLE INFECTED PIGS. J Parasitol. 2009 Aug 12;:1 Authors: Nejsum P, Thamsborg SM, Petersen HH, Kringel H, Fredholm M, Roepstorff A The population dynamics of Ascaris suum was studied by long term exposure of pigs to infective eggs. The pigs were experimentally inoculated with 25 A. suum eggs/kg/day, and 7, 8, and 8 pigs were necropsied at weeks 4, 8, and 14 post inoculation (p.i.), respectively. Despite that pigs were continuously reinfected, dramatic reductions in numbers of liver lesions (white spots) and migrating lung larvae were observed as a function of time. However, even at the end of the study a few larvae were found to be able to complete migration, but these larvae seemed unable to grow up in the small intestine. Thus, the adu... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2699971 Tue, 11 Aug 2009 23:00:00 +0100 2699971 http://www.medworm.com/index.php?rid=2692099&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19663532%26dopt%3DAbstract DEVELOPMENT OF LARVAL SCHISTOSOMA JAPONICUM WAS BLOCKED IN ONCOMELANIA HUPENSIS BY PRE-INFECTION WITH LARVAL EXORCHIS SP. J Parasitol. 2009 Aug 10;:1 Authors: Tang CT, Guo Y, Lu M, Wang YN, Peng JY, Wu WB, Li WH, Weimer BC, Chen D Schistosomiasis continues to be a significant public health threat in the world. In the area of parasitic diseases, it is widely considered second only to malaria as a global health problem with an incalculable drain on the economic resources of countries where it is endemic. Schistosoma japonicum is wide spread in eastern and southeastern Asia, where the amphibious snail, Oncomelania hupensis, is the intermediate host. In the present study, we found that infection of O. hupensis with the mature eggs of another trematode, Exorchis sp., inhibited devel... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2692099 Sun, 09 Aug 2009 23:00:00 +0100 2692099 http://www.medworm.com/index.php?rid=2692098&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19663533%26dopt%3DAbstract Authors: Canaris AG, Kinsella JM, Didyk AS In total, 70 spotted sandpipers, Actitis macularius, were examined for helminth parasites, 47 from Belize, 18 from Texas, and 5 from Montana. Ten species of helminths were recorded for Belize, 5 for Texas, and 6 for Montana. The most prevalent and abundant helminths for Belize were 3 microphallid trematodes Paramaritremopsis solielangi, Levinseniella carteretensis, and Microphallus kinsellai, for Texas, the cestodes Kowalewskiella cingulifera and Choanotaenia cayennensis, and for Montana, the cestodes Anomotaenia hypoleuci and K. cingulifera. The cestode K. cingulifera was the only species recorded from all 3 localities. The cestode A. hypoleuci was the only specialist. Characteristics for helminth communities from the 3 localities were simila... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2692098 Sun, 09 Aug 2009 23:00:00 +0100 2692098 http://www.medworm.com/index.php?rid=2692097&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19663534%26dopt%3DAbstract COCCIDIA (APICOMPLEXA: EIMERIIDAE) FROM THE LAGOMORPH LEPUS TOLAI FROM MONGOLIA. J Parasitol. 2009 Aug 10;:1 Authors: Gardner SL In 1999, a single specimen of the Tolai hare, Lepus tolai Pallas 1778, from the Gobi region of Mongolia was examined and had a parasites of the genus Eimeria in its intestinal contents. Eimeria gobiensis n sp. is relatively large; it possesses 2 oocyst walls and has a very well developed oocyst residuum. Oocysts of the new species possess a thick wall with a double layer, a massive three layered micropyle, and are ellipsoidal with average length and width of the oocyst of 38.6 x 24.2 mum, respectively. The range in measurements of these oocysts extends from 28.3 to 49.2 mum in length by 18.8 to 32.5 mum in width, with a L/W ratio = 1.6; oocyst residuu... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2692097 Sun, 09 Aug 2009 23:00:00 +0100 2692097 http://www.medworm.com/index.php?rid=2692096&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19663535%26dopt%3DAbstract TAXONOMY OF MYXOBOLUS RIDOUTI N. SP. AND M. RIDGWAYI N. SP. (MYXOZOA) FROM PIMEPHALES NOTATUS AND SEMOTILUS ATROMACULATUS (CYPRINIFORMES) IN ONTARIO. J Parasitol. 2009 Aug 10;:1 Authors: Easy RH, Cone DK Myxobolus ridouti n. sp. and M. ridgwayi n. sp. are described, respectively, from Pimephales notatus (Rafinesque) and Semotilus atromaculatus (Mitchill) in Algonquin Park, Ontario. Both are intracellular in striated muscles of the body flank. Spores of M. ridouti n. sp. are subcircular (9.5-10.5 m long by 9.4-10.9 m wide); those of M. ridgwayi n. sp. are oval (10.0-12.1 m long by 9.5-10.5 m). Both species have spores with a small, distinct swelling (1 m) on the spore valve near the posterior sutural ridge, similar to that described for Myxobolus insignis Eiras, Malta, Varella a... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2692096 Sun, 09 Aug 2009 23:00:00 +0100 2692096 http://www.medworm.com/index.php?rid=2692095&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19663536%26dopt%3DAbstract TEMPERATURE INFLUENCE ON PRODUCTION AND LONGEVITY OF SPHAEROTHECUM DESTRUENS' ZOOSPORES. J Parasitol. 2009 Aug 10;:1 Authors: Andreou D, Gozlan RE, Paley R The majority of pathogens that cause high host mortalities are capable of infecting more than 1 host species. One characteristic of pathogens, which enables infection of multiple hosts, is the existence of free-living infectious stages, e.g., zoospores that are produced in vast numbers. Understanding the influence of environmental factors, particularly temperature, on the production and survival of these free-living stages is key to predict future spread and emergence of disease. The rosette agent, Sphaerothecum destruens, is a significant multi-host intracellular fish parasite, with an obligate intracellular spore stage and... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2692095 Sun, 09 Aug 2009 23:00:00 +0100 2692095 http://www.medworm.com/index.php?rid=2692094&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19663537%26dopt%3DAbstract HIMASTHLA ALINCIA (ECHINOSTOMATIDAE): METACERCARIAE IN BRACKISH WATER BIVALVES AND THEIR GROWTH AND DEVELOPMENT IN EXPERIMENTAL ANIMALS. J Parasitol. 2009 Aug 10;:1 Authors: Han ET, Whang JD, Chai JY Metacercariae of Himasthla alincia (Echinostomatidae) were discovered in brackish water bivalves in the Republic of Korea, and their growth and development were observed in experimental animals. Five species of clams (Mactra veneriformis, Solen grandis, Meretrix petechialis, Cyclina sinensis, and Tapes philippinarum) were found to harbor the metacercariae of H. alincia. Chicks, rats, and mice were orally fed the metacercariae, and worms were recovered from their intestines from day 1 to day 20 post-infection (PI). Chicks appeared to be a fairly susceptible host although the worm re... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2692094 Sun, 09 Aug 2009 23:00:00 +0100 2692094 http://www.medworm.com/index.php?rid=2682557&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19658450%26dopt%3DAbstract Authors: Zelmer DA, Platt TR Patterns of infracommunity similarity were examined for 27 male and 6 female common snapping turtles, Chelydra serpentina serpentina, collected from Westhampton Lake on the campus of the University of Richmond in Richmond, Virginia, during the summer mo of 1979 and 1980. Patterns of infracommunity similarity based on parasite abundance emphasized differences between yr and between host sexes. Patterns of similarity based on parasite presence or absence emphasized differences among the mo sampled. This suggests that there were consistent seasonal changes across both yr in terms of which parasites were present, but that there were differences between yr in terms of the abundances of those parasites. PMID: 19658450 [PubMed - as supplied by publisher] (Sour... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2682557 Wed, 05 Aug 2009 23:00:00 +0100 2682557 http://www.medworm.com/index.php?rid=2682556&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19658451%26dopt%3DAbstract BIOLOGICAL VARIATION WITHIN OPISTHORCHIS VIVERRINI SENSU LATO IN THAILAND AND LAO PDR. J Parasitol. 2009 Aug 6;:1 Authors: Laoprom N, Saijuntha W, Sithithaworn P, Wongkham S, Laha T, Ando K, Andrews R, Petney TN Previous molecular genetic analyses indicate that Opisthorchis viverrini is a species complex of at least 2 cryptic species in Thailand and the Lao PDR. Opisthorchis viverrini sensu lato (s.l.) populations can be divided into 6 genetic groups, which correlate with 5 different river wetlands systems. The present study examines the infectivity, growth, fecundity, and body size of O. viverrini s.l. isolates from these wetlands systems. Worm recovery rate was lowest in the Songkhram River which differed significantly from all other wetland systems. In addition, the Chi and ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2682556 Wed, 05 Aug 2009 23:00:00 +0100 2682556 http://www.medworm.com/index.php?rid=2682555&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19658452%26dopt%3DAbstract Authors: Hasle G, Bjune GA, Edvardsen E, Jakobsen C, Linnehol BA, Røer JE, Mehl RA, Røed KH, Pedersen JE, Leinas HP Ticks can be transported over large distances and across geographical barriers by avian hosts. During the spring migrations of 2003 to 2005, 9,768 passerine birds from 4 bird observatories along the southern coastline of Norway were examined for ticks. Altogether, 713 birds carried a total of 517 larvae and 1,440 nymphs. The highest prevalence of tick infestation was observed in thrushes and Dunnock (Prunella modularis). The degree of tick infestation varied during each season, between localities and from yr to yr. Blackbirds (Turdus merula) caught in localities with many ticks had greater infestation than those from localities with few or no ticks, suggesting l... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2682555 Wed, 05 Aug 2009 23:00:00 +0100 2682555 http://www.medworm.com/index.php?rid=2682559&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19655998%26dopt%3DAbstract MOLECULAR AND MORPHOLOGICAL DIVERGENCE IN A PAIR OF BIRD SPECIES AND THEIR ECTOPARASITES. J Parasitol. 2009 Aug 5;:1 Authors: Whiteman NK, Dosanjh VS, Palma R, Hull J, Kimball RT, Sanchez P, Sarasola JH, Parker PG In an evolutionary context, parasites tend to be morphologically conservative relative to their hosts. However, the rate of neutral molecular evolution across many parasite lineages is faster than in their hosts. Although this relationship is apparent at the macroevolutionary scale, insight into the processes underpinning it may be gained through investigations at the microevolutionary scale. Birds and their ectoparasitic lice have served as important natural experiments in co-evolution. Here we compared mitochondrial and morphological divergence in 2 recently diverge... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2682559 Tue, 04 Aug 2009 23:00:00 +0100 2682559 http://www.medworm.com/index.php?rid=2682558&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19656000%26dopt%3DAbstract CHORIONIC GONADOTROPIN HORMONE RECEPTORS ON TAENIA SOLIUM AND TAENIA CRASSICEPS CYSTICERCI IN CULTURE. J Parasitol. 2009 Aug 5;:1 Authors: Castellanos Sanchez VO, Gomez-Conde E, Rocha-Gracia RD, Pimentel A, Aluja AS, Hernandez-Jauregui P, Huerta M, Díaz-Orea MA Hormones play a significant role in murine Taenia crassiceps cysticercosis, and they may also participate in the susceptibility to Taenia solium cysticercosis. In the present study, in vitro effects are reported for chorionic gonadotropin (hCG) on the larval stages of T. crassiceps (WFU strain) and T. solium. Our group shows the presence of receptors against hCG in different developmental phases of both cultured parasites. On day 30, both species of taenias had the highest percentage of receptors in the neck, strobi... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2682558 Tue, 04 Aug 2009 23:00:00 +0100 2682558 http://www.medworm.com/index.php?rid=2675351&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19650688%26dopt%3DAbstract Authors: Meaders MD, Hendrickson GL The life cycle from release of myxospore sporoplasm to mature actinospore for the myxozoan parasite Ceratomyxa shasta in the freshwater polychaete host is described. Infection was initiated through exposure to lab-infected waters. Mature myxospores were present in the gut of segment 4 by 2 hr post-exposure (PE). Migration of early developmental stages occurred from the gut epithelium, through the nervous system, and into the epidermis. Once the parasite reached the epidermis, development typically occurred in segments 6 to 10. Life stages in the epidermis included a proliferative stage (schizogony), development of a pansporocyst (gametogony), sexual reproduction (gametogamy), and spore formation (sporogony). At water temperatures averaging 17.3 C, sc... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2675351 Sun, 02 Aug 2009 23:00:00 +0100 2675351 http://www.medworm.com/index.php?rid=2661014&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19642811%26dopt%3DAbstract PARASITES GAINED: ALIEN PARASITES SWITCHING TO NATIVE HOSTS. J Parasitol. 2009 Jul 27;:1 Authors: El-Rashidy HH, Boxshall GA Three parasitic copepods new to the well-studied Mediterranean fauna are reported. Two of them, Mitrapus oblongus (Pillai, 1964) and Clavellisa ilishae Pillai, 1962, are of Indo-Pacific origin and are considered here to have co-invaded the Mediterranean through the Suez Canal on Erythrean (Red Sea) immigrant hosts. Both are reported here from native Mediterranean clupeid fish hosts and this is the first evidence of host switching of any metazoan parasites from Erythrean immigrants to native fish hosts. The third parasite, Nothobomolochus fradei Marques, 1965 was previously known from the Gulf of Guinea and the Arabian Gulf. Possible explanations of its pr... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2661014 Sun, 26 Jul 2009 23:00:00 +0100 2661014 http://www.medworm.com/index.php?rid=2661016&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19642809%26dopt%3DAbstract ESTROGEN-RELATED FECUNDITY REDUCTION OF LYMNAEA OLLULA FOLLOWING FASCIOLA GIGANTICA INFECTION. J Parasitol. 2009 Jul 24;:1 Authors: Kumkate S, Onmek N, Boonburapong B, Singhakaew S, Leardkamolkarn V Infection by trematode parasites generally affects life history traits of their intermediate hosts. Reduction in life expectancy and reproductive capacity have previously been documented in Fasciola gigantica-infected Lymnaea ollula but the influence of the endocrine system on this specific host-parasite interaction has never been studied before. In the present study, we examined survival, growth pattern, and reproductive output of Lymnaea ollula following exposure to Fasciola gigantica. Both survival and the growth pattern of infected snails were similar to those of the non-infecte... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2661016 Thu, 23 Jul 2009 23:00:00 +0100 2661016 http://www.medworm.com/index.php?rid=2661015&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19642810%26dopt%3DAbstract Authors: Knipes AK, Janovy Jr J The gill monogene communities of Pimephales promelas (fathead minnow) in 3 distinct sites on converging streams were investigated from 2004 to 2006 in 3 different seasons. Thirty collections of P. promelas were made in southeastern Nebraska along 3 converging tributaries: Elk Creek (40.88534 N, 96.83366 W), West Oak Creek (40.9082 N, 96.81432 W) and Oak Creek (40.91402 N, 96.770583 W), Lancaster County, Nebraska, U.S.A. In all, 103 P. promelas were collected from Elk Creek, 115 from West Oak Creek, and 78 from Oak Creek, and examined for gill monogenes. Among the P. promelas collected, 93.5% were infected with up to 3 species of Dactylogyrus including: D. simplex Mizelle, 1937; D. bychowskyi Mizelle, 1937; and D. pectenatus Mayes, 1977. Mean intensities ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2661015 Thu, 23 Jul 2009 23:00:00 +0100 2661015 http://www.medworm.com/index.php?rid=2611713&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19604027%26dopt%3DAbstract DESCRIPTION OF A NEW DIGENEAN (ZOOGONIDAE) GENUS AND SPECIES FROM SUB-ANTARCTIC FISH PATAGONOTOTHEN TESSELLATA. J Parasitol. 2009 Jul 15;:1 Authors: Jeżewski W, Zdzitowiecki K, Laskowski Z Whitegonimus ozoufae n. gen., n. sp. (Digenea: Zoogonidae; Lepidophyllinae) is reported from the stomach of Patagonotothen tessellata in the harbor of Ushuaia in the Beagle Channel at a depth of 7-9 m. The female genital system structure indicates the new taxon belongs in the subfamily Lepidophyllinae (Zoogonidae). None of the genera previously described is similar to the new genus. The most important taxonomic features are: the spined tegument, lack of enlarged circumoral spines, gonads arranged in tandem, long caeca, vitelline follicles extending from the level of the ventral sucker t... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2611713 Tue, 14 Jul 2009 23:00:00 +0100 2611713 http://www.medworm.com/index.php?rid=2611712&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19604033%26dopt%3DAbstract Authors: Oke TT, Moskovitz J, Williams DL Schistosomiasis, also known as Bilharzia, is an infectious disease caused by several species of Schistosoma. Twenty million individuals suffer severe symptoms and 200,000 people die annually from the disease. The host responds to the presence of S. mansoni by producing reactive oxygen species that cause oxidative stress. We hypothesized that schistosomes produce antioxidants in response to oxidative stress. A known antioxidant protein is methionine sulfoxide reductase (Msr). Methionine residues can be oxidized to methionine sulfoxide in the presence of oxidizing agents, which is readily reversed by the action of the Msr system. Two S. mansoni MsrB genes (MsrB1 and MsrB2) were cloned and the recombinant proteins expressed in bacteria and purifie... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2611712 Tue, 14 Jul 2009 23:00:00 +0100 2611712 http://www.medworm.com/index.php?rid=2611711&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19604034%26dopt%3DAbstract NEW SPECIES OF CROSSOBOTHRIUM (CESTODA: TETRAPHYLLIDEA) FROM THE BROADNOSE SEVENGILL SHARK, NOTORYNCHUS CEPEDIANUS, IN ARGENTINA. J Parasitol. 2009 Jul 15;:1 Authors: Ivanov VA Two new species of Crossobothrium were found inhabiting Notorynchus cepedianus, the broadnose sevengill shark, collected from the coast of Buenos Aires Province, Argentina. Crossobothrium antonioi n. sp. is the smallest species in the genus and has at least 3 times as many testes per mature proglottid than any other congener. It can further be distinguished from other species of Crossobothrium by the possession of crenulated bothridial margins and a different microthrix pattern. Crossobothrium pequeae n. sp. is distinguished from all other species in the genus using the following combination of character... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2611711 Tue, 14 Jul 2009 23:00:00 +0100 2611711 http://www.medworm.com/index.php?rid=2580784&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19575541%26dopt%3DAbstract HEAD GLANDS OF MONOGENOIDEA: MORPHOLOGY, FUNCTIONALITY AND POTENTIALITIES IN INDUSTRIAL PRODUCTION OF SURGERY BIOADHESIVES. J Parasitol. 2009 Jul 3;:1 Authors: Galli P A review of structure and functionality of monogenoidean head glands is provided. The unique features of biochemical means used by parasites to attach on/detach from fish hosts are highlighted. The potential use of monogenoidean cephalic secretions in surgical field, and particularly in the production of biadhesives is suggested and critically supported by comparison with other available haemostatic agents. PMID: 19575541 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2580784 Thu, 02 Jul 2009 23:00:00 +0100 2580784 http://www.medworm.com/index.php?rid=2580783&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19575542%26dopt%3DAbstract NEW DATA ON HENNEGUYA PELLIS (MYXOZOA: MYXOBOLIDAE) PARASITIZING BLUE CATFISH ICTALURUS FURCATUS. J Parasitol. 2009 Jul 3;:1 Authors: Griffin MJ, Khoo LH, Torrans L, Bosworth BG, Quiniou SM, Gaunt PS, Pote LM The original description of Henneguya pellis, a myxozoan parasitizing blue catfish Ictalurus furcatus, is supplemented with new data on histopathology, spore morphology and 18S small-subunit (SSU) ribosomal DNA (rDNA) sequence. Plasmodia presented as both internal and external, raised, cyst-like lesions on the body wall of the peritoneal cavity and on the skin. The cysts contained numerous elongate, lanceolate myxospores, flattened parallel to the suture line. The spore body was 14.8 +/- 1.1 microm (range 13.0 to 17.1) long and 4.8 +/- 0.8 microm (range 4.0 to 7.4) wide in... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2580783 Thu, 02 Jul 2009 23:00:00 +0100 2580783 http://www.medworm.com/index.php?rid=2580782&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19575543%26dopt%3DAbstract Authors: Kubo M, Nagataki M, Agatsuma T, Sakai H, Masegi T, Panciera RJ, Yanai T The Hepatozoon species in the myocardium of Japanese martens (Martes melampus melampus) was characterized by histological and molecular methods. Histologically, granulomatous nodules with Hepatozoon sp. merozoites/gametocytes, or schizonts, or both were observed in the hearts of Japanese martens. The most frequently observed form was merozoites/gametocytes within phagocytes; each host cell included a zoite, which was not microscopically identifiable as a merozoite or gametocyte. Schizonts were oval in shape and 36.9 +/- 5.7 x 28.9 +/- 3.4 microm in size; each schizont had approximately 20-60 nuclei. The size of the merozoites could not be measured because no mature schizonts were observed. In the analyses ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2580782 Thu, 02 Jul 2009 23:00:00 +0100 2580782 http://www.medworm.com/index.php?rid=2580781&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19575544%26dopt%3DAbstract Authors: Cross JH none. PMID: 19575544 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2580781 Thu, 02 Jul 2009 23:00:00 +0100 2580781 http://www.medworm.com/index.php?rid=2562918&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19566345%26dopt%3DAbstract We examined the effect of Plagiorchis elegans on egg production and survival on Bulinus truncatus, and Helisoma trivolvis trivolvis. Both species are incompatible hosts of P. elegans. H .t. trivolvis occurs sympatrically with P. elegans; B. truncatus does not. Overall, P. elegans had no effect on survivorship and egg production in H .t. trivolvis nor on the survivorship of B. truncatus. Its effect on egg production in B. truncatus was transitory; egg production was reduced by 50% for 5 weeks following exposure but returned to normal thereafter. Neither egg production nor survivorship was affected in adult H. t. trivolvis.. Egg production ceased at 14 weeks post exposure but resumed when the snails were paired. Young H. t. trivolvis also produced eggs after exposure but later than the adult... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2562918 Mon, 29 Jun 2009 23:00:00 +0100 2562918 http://www.medworm.com/index.php?rid=2562917&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19566346%26dopt%3DAbstract A NEW METASTRONGILIDAE SPECIES (NEMATODA): A LUNGWORM FROM AKODON MONTENSIS (RODENTIA: SIGMODONTINAE) IN BRAZIL. J Parasitol. 2009 Jun 30;:1 Authors: Souza J, Simões R, Thiengo SA, Lima W, Mota E, Rodrigues-Silva R, Lanfredi RM, Maldonado Jr A Angiostrongylus lenzii n. sp. (Nematoda: Metastrongyloidea) is described and illustrated from the pulmonary artery of the wild rodent Akodon montensis Thomas, 1913 collected in the municipality of Teresopólis, Rio de Janeiro state, Brazil. It represents the 17th species of the genus and the 2nd in South America as parasites in rodents. This new species is the most similar morphologically to Angiostrongylus vasorum, Angiostrongylus gubernaculatus, Angiostrongylus schmidti, and Angiostrongylus morerai. It can be distinguished from... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2562917 Mon, 29 Jun 2009 23:00:00 +0100 2562917 http://www.medworm.com/index.php?rid=2562916&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19566347%26dopt%3DAbstract A NEW SPECIES OF RHYNCHOBDELLID LEECH (HIRUDINEA: GLOSSIPHONIIDAE) PARASITE OF TURTLES FROM CHIAPAS, MEXICO. J Parasitol. 2009 Jun 30;:1 Authors: López-Jiménez S, Oceguera-Figueroa A A new species of rhynchobdellid leech, Placobdella ringueleti n. sp. is described based on the examination of 25 specimens. Leeches were collected from body appendages of freshwater turtles (Kinosternon leucostomum, Dermatemys mawii, and Staurotypus triporcatus) from Chiapas, Mexico. The new species resembles other members of the genus in the ocular morphology, bilobated ovaries, and in the presence of 1 pair of elongated mycetomes, but it is distinguished from others by the dorsal papillar pattern, by having a continuous longitudinal mid-dorsal stripe along the dorsal surface and papilla... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2562916 Mon, 29 Jun 2009 23:00:00 +0100 2562916 http://www.medworm.com/index.php?rid=2549362&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19545187%26dopt%3DAbstract SYNLOPHE STRUCTURE FOR SPECIES OF LONGISTRONGYLUS (NEMATODA: TRICHOSTRONGYLOIDEA), ABOMASAL PARASITES AMONG UNGULATES FROM SUB-SAHARAN AFRICA, WITH COMPARISONS TO THE GLOBAL OSTERTAGIINE FAUNA. J Parasitol. 2009 Jun 22;:1 Authors: Hoberg EP, Abrams A, Pilitt PA ABSTRACTThe synlophe, or system of longitudinal cuticular ridges characteristic of some trichostrongyloid nematodes, is examined in detail for 6 of 8 species in the genus Longistrongylus (Ostertagiinae) that occur in ungulates across sub-Saharan Africa. Among the species of Longistrongylus examined, 5 are characterized by a tapering pattern laterally in the cervical zone (anterior to the esophageal-intestinal junction) which is largely consistent among multiple male and female specimens; in contrast, for L. meyeri the la... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2549362 Sun, 21 Jun 2009 23:00:00 +0100 2549362 http://www.medworm.com/index.php?rid=2549361&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19545188%26dopt%3DAbstract Authors: Aldana M, González K, Loot G, Pulgar J, Marquet P The digenetic trematode, Proctoeces lintoni, is a parasite of the rocky intertidal ecosystems of the Chilean Pacific coastline. Although this species is relatively well-known, the first intermediate host has not yet been described. In the present study, we used experimental protocols and field studies to identify the host that harbors the sporocysts and cercariae stages of the parasite. The first intermediate host was shown to be the dominant mussel of the mid-littoral zone, Perumytilus purpuratus. PMID: 19545188 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2549361 Sun, 21 Jun 2009 23:00:00 +0100 2549361 http://www.medworm.com/index.php?rid=2549360&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19545191%26dopt%3DAbstract FIBROMERMIS ROARKI N. GEN., N. SP. EMERGING FROM CHIRONOMID IMAGOS ECLOSING FROM THE MISSISSIPPI RIVER HEADWATERS AREA IN NORTHERN MINNESOTA. J Parasitol. 2009 Jun 22;:1 Authors: Johnson AA, Kleve M Fibromermis roarki n. gen., n. sp. (Nematoda: Mermithidae) is described from the hemocoel of two different species of chironomid imagos eclosing from the headwaters of the Mississippi River at Gulsvig Landing in northern Minnesota in July and August 2007. The new genus is described, distinguished from the other most closely related tetrapapillate aquatic mermithid genus, and the new species described. Intensity and specificity of infection is recorded from 28 host adult chironomids. The new species represents the fourth tetrapapillate mermithid species described from the area and th... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2549360 Sun, 21 Jun 2009 23:00:00 +0100 2549360 http://www.medworm.com/index.php?rid=2549364&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19537848%26dopt%3DAbstract Authors: Weinkopff T, Atwood JA, Punkosdy GA, Moss D, Weatherly DB, Orlando R, Lammie P With the recent completion of the Brugia malayi genome, proteomics offers a new resource for a deeper understanding of the biology of filarial parasites. We employed 2-dimensional (2D) gel electrophoresis followed by peptide mass fingerprinting on a matrix-assisted laser desorption/ionization time-of-flight (MALDI-ToF) mass spectrometer to identify Brugia adult worm proteins, and then determined which proteins were recognized by the host humoral immune response. We identified 18 unique proteins, several of which were determined to be antigenic by immunoblot. The proteins identified here may contribute to future studies to analyze the transmission and pathogenesis of lymphatic filariasis. PMID: 1... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2549364 Wed, 17 Jun 2009 23:00:00 +0100 2549364 http://www.medworm.com/index.php?rid=2549363&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19537880%26dopt%3DAbstract ACANTHOCEPHALA FROM AMPHIBIANS IN CHINA WITH DESCRIPTION OF A NEW SPECIES OF PSEUDOACANTHOCEPHALUS. J Parasitol. 2009 Jun 18;:1 Authors: Bush SE, Duszynski DW, Nickol B Amphibians of 24 species were surveyed for acanthocephalans in 4 nature reserves in 2 Chinese provinces during 2004-2006 Pseudoacanthocephalus bufonis (Echinorhynchida) occurred in both nature reserves in Guangxi Province. In the Jing Xi County Provincial Nature Reserve, P. bufonis infected 36 of 62 amphibians at a mean intensity of 9.9. Less than 250 km away, at Shiwandashan National Nature Reserve, 5 of 20 amphibians were infected at a mean intensity of 6.2. Pseudoacanthocephalus bufonis was not found in either of the reserves in Guizhou Province. In the Kuan Kuoshui Nature Reserve, 9 of 28 amphibians were par... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2549363 Wed, 17 Jun 2009 23:00:00 +0100 2549363 http://www.medworm.com/index.php?rid=2549367&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19530887%26dopt%3DAbstract MITOCHONDRIAL DNA OF ANISAKIS SIMPLEX S.S. AS A POTENTIAL TOOL FOR DIFFERENTIATING POPULATIONS. J Parasitol. 2009 Jun 16;:1 Authors: Kijewska A, Dzido J, Rokicki J Anisakis simplex s.s. specimens from Gadus morhua, G. ogac, Reinhardtius hippoglossoides, Clupea harengus, Micromesistius poutassou, Pleurogrammus monopterygius, and Oncorhynchus nerka, caught in the north Atlantic and Pacific, were examined. Identity of the parasite species was confirmed using a molecular key. All specimens were used for amplifying a part of the non-coding sequence of the AT-rich region, flanked by the nad6-nad4L-trnW-trnE-rrnS-trnS2, and trnN-trnY-nad1 genes. This part of the mtDNA was chosen as a promising fragment, which could yield the information regarding population differentiation. The number... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2549367 Mon, 15 Jun 2009 23:00:00 +0100 2549367 http://www.medworm.com/index.php?rid=2549366&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19530888%26dopt%3DAbstract Authors: Innocenti G, Galil BS, Yokes MB, Diamant A, Goren M The Erythrean invasive swimming crab Charybdis longicollis had established dense populations in the Levantine basin of the Mediterranean Sea in the mid 20th century, that were parasitized, in the last decade of that century, by the rhizocephalan Heterosaccus dollfusi, itself an Erythrean alien. In May 2008 the host populations were sampled at the southern (Israel) and northern (Turkey) limits of its introduced range. The prevalence of infection was three times as high, and multiple externae-bearing hosts more than four times as many in Israel as in Turkey. It seems that off the Israeli coast the water temperature permits the synchronous ontogenetic development of both host and parasite ensuring availability of plentiful young... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2549366 Mon, 15 Jun 2009 23:00:00 +0100 2549366 http://www.medworm.com/index.php?rid=2549365&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19530889%26dopt%3DAbstract A NEW SPECIES OF ANDROLAELAPS (ACARI: PARASITIFORMES) FROM THE AKODONTINE RODENT DELTAMYS KEMPI THOMAS, 1919 IN LA PLATA RIVER BASIN, ARGENTINA. J Parasitol. 2009 Jun 16;:1 Authors: Lareschi M, Gettinger D Androlaelaps maurii, a new species of laelapine mite, is described on the basis of female specimens collected from the pelage of the akodontine rodent, Deltamys kempi from La Plata River basin in Argentina. Androlaelaps maurii can be differentiated from closely related species by being smaller and by the differing distribution of setae in the dorsal shield, and unarmed opithogaster. This mite appears to be host specific to D. kempi, and occurs on this rodent throughout its distribution in Argentina and Uruguay. PMID: 19530889 [PubMed - as supplied by publisher] (Source: T... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2549365 Mon, 15 Jun 2009 23:00:00 +0100 2549365 http://www.medworm.com/index.php?rid=2549368&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19522549%26dopt%3DAbstract NESTED CYTOCHROME B POLYMERASE CHAIN REACTION DIAGNOSTICS DETECT SPOROZOITES OF HEMOSPORIDIAN PARASITES IN PERIPHERAL BLOOD OF NATURALLY INFECTED BIRDS. J Parasitol. 2009 Jun 12;:1 Authors: Valkiunas G, Iezhova TA, Claire Loiseau C, Sehgal RN Some discrepancies between microscopy and PCR-based methods have been recently recorded in the diagnosis of Leucocytozoon spp. infection in naturally infected birds. To clarify this issue, blood samples from 109 yellow-whiskered greenbuls Andropadus latirostris were investigated using both the microscopic examination of blood films and a nested mitochondrial cytochrome b PCR. The overall prevalence of Leucocytozoon spp. infection was 4% after the standard microscopic examination and 17% using the PCR diagnostics. Samples from 9 randomly ch... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2549368 Thu, 11 Jun 2009 23:00:00 +0100 2549368 http://www.medworm.com/index.php?rid=2475879&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19505171%26dopt%3DAbstract Authors: Curtis LA The snail Ilyanassa obsoleta is native in estuaries along the eastern seaboard of North America. In Delaware, U.S.A. most studies on this snail and its larval trematode parasites have been done in snail populations where prevalence (% infected) is high. Here data were taken in southeastern Rehoboth Bay, Delaware, a lower prevalence site, to study how the resident trematodes exploit the snail resource among the saltmarsh islands there. Snails were sieved from 3 plots (1 m2 each) at each of 21 locations along shorelines in the ~1.5 km2 study area. Counts were made and all snails or a random selection of all snails were measured for size and dissected to reveal sex and larval trematode infections. The millions of snails in the area were distributed heterogeneously with ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475879 Mon, 08 Jun 2009 04:00:00 +0100 2475879 http://www.medworm.com/index.php?rid=2475881&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19492897%26dopt%3DAbstract In this report, we provide an alternative interpretation of the nature of a parasite stage that occurs 24 hr after excystation of oocysts, which is morphologically similar to stages that have been regarded as being extracellular trophozoites or merozoites by other investigators. PMID: 19492897 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475881 Wed, 03 Jun 2009 04:00:00 +0100 2475881 http://www.medworm.com/index.php?rid=2475933&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19489671%26dopt%3DAbstract Authors: Hudson AJ, Floate KD We used molecular techniques to characterize bacteria associated with the nematomorph worm, Gordius robustus (Leidy). This worm is a parasite of the fall field cricket, Gryllus pennsylvanicus (Burmeister), which is infected with the symbiotic bacteria, Wolbachia. Because of this close association, our a priori expectation was that G. robustus may be similarly infected. However, results of denaturing gradient gel electrophoresis (DGGE) and sequencing of amplified 16S rDNA failed to detect any bacteria (symbiotic or non-symbiotic) in G. robustus. These unexpected findings suggest that G. robustus have no internal bacterial fauna, and indicate that a close-association with a Wolbachia-infected host is insufficient for the transmission of bacteria from insect ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475933 Tue, 02 Jun 2009 04:00:00 +0100 2475933 http://www.medworm.com/index.php?rid=2475936&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19480536%26dopt%3DAbstract Authors: Xi BW, Oros M, Wang GT, Wu SG, Gao D, Nie P Khawia saurogobii n. sp. is described from the intestine of cyprinid fishes Saurogobio dabryi and S. dumerili in China. The new species is in the family Lytocestidae and is placed in the genus Khawia, because of its affosate scolex, vitelline follicles in cortical parenchyma, uterus not looping anterior to the cirrus-sac, gonopores separate but close together in distinct genital atrium, external seminal vesicle absent and postovarian follicles present. The new species differs from other congeneric species by the shape of the body markedly tapering posteriorly from the end of the anterior third, the shape of the scolex, which is very short and markedly wider than the neck, spathulate, without incisions, but shallow superficial grooves... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475936 Fri, 29 May 2009 04:00:00 +0100 2475936 http://www.medworm.com/index.php?rid=2475934&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19480537%26dopt%3DAbstract THE RELATIONSHIP BETWEEN BAYLISASCARIS PROCYONIS PREVALENCE AND RACCOON POPULATION STRUCTURE. J Parasitol. 2009 May 29;:1 Authors: Page K, Gehrt SD, Cascione A, Kellner KF Parasite transmission is a dynamic process that can be affected by factors including host and parasite population dynamics. Raccoons (Procyon lotor) are the definitive host of Baylisascaris procyonis, an intestinal roundworm. Transmission of this parasite has been linked to raccoon behavior and human land-use patterns; however, we do not know the importance of host population structure. Therefore, the objective of this study was to determine the relationship between raccoon population attributes and prevalence of B. procyonis. We necropsied 307 trapped or road-killed raccoons collected during 2000-2006 from t... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475934 Fri, 29 May 2009 04:00:00 +0100 2475934 http://www.medworm.com/index.php?rid=2475938&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19476404%26dopt%3DAbstract Authors: Morales-Neto R, Hulshof L, Ferreira CV, Gadelha FR Phosphorylation of parasite proteins plays a key role in the process of cell invasion by Trypanosoma cruzi, the etiologic agent of Chagas disease. In this sense, characterization of parasite kinases and phosphatases could open new possibilities for the rational design of chemotherapeutic agents for the treatment of Chagas disease. In this work, we analyzed phosphatase activities in T. cruzi homogenates from 2 strains belonging to different lineages and with different resistance to oxidative stress. Tulahuen 2 cells (Lineage I) showed higher phosphatase activities and specificity constants when compared to the Y strain (Lineage II). Tulahuen 2 had an opyimum phosphatase activity at pH 4.0 and the Y strain at pH 7.0. In both cas... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475938 Thu, 28 May 2009 04:00:00 +0100 2475938 http://www.medworm.com/index.php?rid=2475942&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19473051%26dopt%3DAbstract A NEW SPECIES OF HYSTEROTHYLACIUM (NEMATODA: ANISAKIDAE) FROM THE STOMACH OF THE RED-SPOTTED NEWT, NOTOPHTHALMUS VIRIDESCENS, FROM PENNSYLVANIA FISHLESS PONDS. J Parasitol. 2009 May 27;:1 Authors: Raffel TR, Anderson TK Species of the anisakid genus Hysterothylacium Ward & Magath, 1917 (Nematoda: Anisakidae) have previously only been reported from marine and freshwater fishes. Here, we describe a new species that infects red-spotted newts (Notophthalmus viridescens), a North American amphibian species with fully aquatic adults. Aside from the unique characteristic of infecting an amphibian host, the new species differs from congeners by the presence of lateral alae, the length of intestinal caecum (0.54-0.73 mm, 39.67-49.09% of oesophageal length), the size of the spicules ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475942 Wed, 27 May 2009 04:00:00 +0100 2475942 http://www.medworm.com/index.php?rid=2475940&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19473052%26dopt%3DAbstract Authors: Murrell KD, Hawdon JM none. PMID: 19473052 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475940 Wed, 27 May 2009 04:00:00 +0100 2475940 http://www.medworm.com/index.php?rid=2475944&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19469584%26dopt%3DAbstract NEW SPECIES OF ISOSPORA FROM THE BLUE-CROWNED MOTMOT (MOMOTUS MOMOTA) FROM COSTA RICA. J Parasitol. 2009 May 26;:1 Authors: Yabsley MJ, Keeler S, Gibbs S, McGraw S, Hernandez-Divers S Two (33.3%) of six blue-crowned motmots (Momotus momota) sampled from Costa Rica were positive for a new species of Isospora. Oocysts of the new Isospora species had a single, thick, yellow to orange, 2.3 mum +/- 0.5mum [2-3mum] wall, contained one to three circular polar granules (1-4mum), were ovoid with heavy pitting on outer surface, and measured 29.4 +/- 2.3 x 27.5 +/- 2.3 (25-33 x 23-31), with an average length-width ratio of 1.1microm. Sporocysts were ovoid, contained a residuum composed of large equal-sized granules, and measured 19.4 +/- 1.3 x 12.2 +/- 1.1 (16-22 x 10-14), with an average... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475944 Tue, 26 May 2009 04:00:00 +0100 2475944 http://www.medworm.com/index.php?rid=2475958&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19463035%26dopt%3DAbstract A NEW OPECOELID SPECIES (TREMATODA: OPECOELIDAE) FROM THE THREESPINE STICKLEBACK GASTEROSTEUS ACULEATUS L. IN CALIFORNIA. J Parasitol. 2009 May 23;:1 Authors: Tracey JK, Choudhury A, Cheng JM, Ghosh S Plagioporus kolipinskii n. sp. (Trematoda: Opecoelidae) is described from the intestine of the threespine stickleback, Gasterosteus aculeatus L., from Lobos Creek, a freshwater stream in Presidio, San Francisco County, California. Plagioporus kolipinskii is morphologically somewhat similar to 4 (P. serotinus Stafford, 1904, P. angusticollis Hausmann, 1896, P. macrouterinus Haderlie, 1953, and P. shawi [McIntosh, 1939]) of the 12 currently recognized North American species of the genus, but can be readily distinguished from all 4 in possessing a much larger acetabulum, and a larger... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475958 Sat, 23 May 2009 04:00:00 +0100 2475958 http://www.medworm.com/index.php?rid=2475956&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19463036%26dopt%3DAbstract REDESCRIPTION OF ANTARCTOPHTHIRUS MICROCHIR (ANOPLURA: ECHINOPHTHIRIIDAE) FROM THE SOUTH AMERICAN SEA LION, OTARIA FLAVESCENS, FROM PATAGONIA, ARGENTINA. J Parasitol. 2009 May 23;:1 Authors: Leonardi MS, Crespo EA, Raga JA, Fernández M Antarctophthirus microchir was originally described from Phocarctos hookeri on the basis of 1 female and 1 male only. We re-describe adults and describe, for the first time, the 3 nymphal stages from specimens collected from Otaria flavescens from Patagonia, using light and scanning electron microscopy. The present material can be distinguished from other Antarctophthirus species by the presence of a fringe of setae on the back of the head, only present in A. trichechi and A. callorhini. However, A. trichechi possess a prominent proboscis wi... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475956 Sat, 23 May 2009 04:00:00 +0100 2475956 http://www.medworm.com/index.php?rid=2475954&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19463037%26dopt%3DAbstract CRYPTOSPORIDIUM PARVUM DNA REPLICATION IN CELL-FREE CULTURE. J Parasitol. 2009 May 23;:1 Authors: Zhang L, Sheoran AS, Widmer G The lack of robust methods for culturing Cryptosporidium parasites remains a major challenge and is hampering efforts to screen for anti-cryptosporidial drugs. In existing culture methods, monolayers of mammalian epithelial cells are inoculated with oocysts. The system supports an initial phase of asexual proliferation of the parasite. For reasons that are not clear, development rapidly declines within 2 to 3 days. The unexpected report of C. parvum culture in the absence of host cells, and the failure of others to reproduce the method, prompted us to apply quantitative PCR to measure changes C. parvum DNA levels in cell-free cultures, and parasite-spe... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475954 Sat, 23 May 2009 04:00:00 +0100 2475954 http://www.medworm.com/index.php?rid=2475952&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19463038%26dopt%3DAbstract A NEW SPECIES OF AFRICANA (NEMATODA: HETERAKIDAE) FROM LIZARDS OF SOUTHERN AMAZON, BRAZIL. J Parasitol. 2009 May 23;:1 Authors: Avila RW, Silva RJ Africana dardanelosi n. sp. is described from the intestine of the lizard Hoplocercus spinosus collected from the southern Amazon, Brazil. Africana dardanelosi n. sp. is the third species of the genus related with the Neotropical realm, and is the tenth species assigned to the genus. It is distinguished of the African species by spicule size, number and arrangement of caudal papillae. From the Neotropical species (A. telfordi and A. chabaudi), A. dardanelosi n. sp. is easily separated by spicule size (2,157-2,402.95 m versus 366-458 m and 644-869 m, respectively) and by number of caudal papillae (13 versus 17 and 10, respectively). ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475952 Sat, 23 May 2009 04:00:00 +0100 2475952 http://www.medworm.com/index.php?rid=2475950&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19463039%26dopt%3DAbstract A NEW DEROPRISTIID SPECIES (TREMATODA: DEROPRISTIIDAE) FROM THE LAKE STURGEON ACIPENSER FULVESCENS IN WISCONSIN, AND ITS BIOGEOGRAPHICAL IMPLICATIONS. J Parasitol. 2009 May 23;:1 Authors: Choudhury A Pristicola bruchi n. sp. (Trematoda: Deropristiidae) is described from the spiral-valved intestine of the lake sturgeon, Acipenser fulvescens, from the Wolf River in Wisconsin. It differs from the only other species of the genus, Pristicola sturionis, a parasite of the European Atlantic sturgeon Acipenser sturio, in being smaller and in possessing the following characters: a single row of conspicuous peg-like oral spines instead of 2 rows, vitelline follicles that are dorsally confluent only over a small region and that barely overlap the testes instead of extending beyond the post... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475950 Sat, 23 May 2009 04:00:00 +0100 2475950 http://www.medworm.com/index.php?rid=2475948&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19463040%26dopt%3DAbstract HALIOTREMATOIDES SPP. (MONOGENOIDEA, DACTYLOGYRIDAE) INFECTING THE GILLS OF GRUNTS (PERCIFORMES, HAEMULIDAE) FROM THE SOUTHERN COAST OF QUINTANA ROO, MEXICO. J Parasitol. 2009 May 23;:1 Authors: Mendoza-Franco EF, Reyes-Lizama C, González-Solís D One previously described species, Haliotrema striatohamus Zhukov, 1981 off the coast Cuba and Campeche (Gulf of Mexico) is redescribed and transferred to Haliotrematoides Kritsky, Yang and Sun, 2009, as Haliotrematoides striatohamus (Zhukov, 1981) n. comb. This transfer is based on the study of new specimens of this species found in the gill lamellae of grunts: Haemulon aurolineatum Cuvier, Haemulon plumierii (Lacepède), and Haemulon sciurus (Shaw) (Haemulidae) from the southern coast of Quintana Roo, Mexico. In addition... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475948 Sat, 23 May 2009 04:00:00 +0100 2475948 http://www.medworm.com/index.php?rid=2475946&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19463041%26dopt%3DAbstract Authors: Raffel TR, Sheingold JL, Rohr JR Pesticides can elevate trematode infections in amphibians. However, direct adverse effects of pesticides on embryos and free-living stages of trematodes have not been thoroughly explored, despite the potential for these effects to reduce amphibian trematode infections. We measured effects of atrazine, glyphosate, carbaryl, and malathion on embryo and miracidial (free-living stage) survival of Echinostoma trivolvis, a common trematode of amphibians. We found no evidence of biologically relevant effects of these pesticides at ecologically relevant concentrations. PMID: 19463041 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology) The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475946 Sat, 23 May 2009 04:00:00 +0100 2475946 http://www.medworm.com/index.php?rid=2475960&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19463029%26dopt%3DAbstract DEVELOPMENT OF EUSTRONGYLIDES IGNOTUS (NEMATODA: DIOCTOPHMIDA) IN DOMESTIC DUCKS (ANAS PLATYRHYNCHOS DOMESTICA (L.)). J Parasitol. 2009 May 22;:1 Authors: Xiong F, Wang GT Investigating the development of Eustrongylides ignotus in its definitive host would enable us to trace its complete life cycle of this nematode. Fourth-stage larvae isolated from naturally infected swamp eels (Monopterus albus) were used to infect domestic ducks (Anas platyrhynchos domestica [L.]). We observed that male and female worms exhibited different developmental patterns in host ducks. In males, the fourth molt occurred at day 1-2 post-infection (PI), after which they attained maturity on day 4 PI, and died between day 7 and day 9 PI. However, females underwent the fourth molt at day 2-4 PI, produced... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475960 Fri, 22 May 2009 04:00:00 +0100 2475960 http://www.medworm.com/index.php?rid=2475963&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19441875%26dopt%3DAbstract Authors: Marchiori NC, Pereira Jr J, Castro LA Scanning electron microscopy was used to analyze superficial features of Gordius dimorphus Poinar, 1991 larvae that might serve as generic or specific diagnostic characters. Three adults of G. dimorphus (two males and one female) were maintained under laboratory conditions until spontaneous oviposition, which occurred as described as characteristic to the genus. Larvae have a cylindrical body, superficially segmented and divided into two sections, an anterior preseptum and a posterior postseptum. Three concentric rings with six spines each surround the proboscis. The proboscis is retractile, dorsoventrally flattened, with one pair of forceps-like projections on its distalmost portion. On the surface of each projection three pairs of aculea... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475963 Thu, 14 May 2009 04:00:00 +0100 2475963 http://www.medworm.com/index.php?rid=2475962&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19441876%26dopt%3DAbstract Authors: Rangel LF, Santos MJ This is the first host record of Gymnophallus choledochus metacercariae infecting the polychaete Diopatra neapolitana in the Aveiro Estuary (Portugal). The metacercariae were found unencysted and their morphology is similar to that presented by metacercariae harbored by Nereis diversicolor and Cerastoderme edule, although they are larger in size. In D. neapolitana, the prevalence and mean intensity of the infection was very high, at 100% and 202 +/- 139 metacercariae per host, indicating that this polychaete is the most suitable host for G. choledochus in the Aveiro Estuary. In terms of distribution within the host, the metacercariae were found almost exclusively in the branchial segments (97.4%). This, in conjunction with the close relationship between th... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475962 Thu, 14 May 2009 04:00:00 +0100 2475962 http://www.medworm.com/index.php?rid=2475964&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19438288%26dopt%3DAbstract DETECTING A COMPLEX OF CRYPTIC SPECIES WITHIN NEOECHINORHYNCHUS GOLVANI (ACANTHOCEPHALA: NEOECHINORHYNCHIDAE) INFERRED FROM ITS'S AND LSU RDNA GENE SEQUENCES. J Parasitol. 2009 May 13;:1 Authors: Martínez-Aquino A, Reyna-Fabián ME, Rosas-Valdez R, Ulises Razo-Mendivil U, Gerardo Pérez-Ponce de León G, Garcia-Varela M Neoechinorhynchus golvani is an intestinal parasite of freshwater and brackish water fishes distributed in Mexico. The genetic variability of 40 samples representing 12 populations from north, south, and central Mexico, and 1 from Costa Rica, was estimated by sequencing 2 nuclear genes (ITS1, 5.8S, ITS2, and LSU rDNA, including the domain D2 + D3). The length of both genes ranged from 700 to 779 bp and from 813 to 821 bp, for ITS s and LSU, resp... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475964 Wed, 13 May 2009 04:00:00 +0100 2475964 http://www.medworm.com/index.php?rid=2475970&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19413363%26dopt%3DAbstract TWO NEW SPECIES OF CHORICOTYLE VAN BENEDEN & HESSE (MONOGENA: DICLIDOPHORIDAE) PARASITES FROM ANISOTREMUS SCAPULARIS AND ISACIA CONCEPTIONIS (HAEMULIDAE) FROM NORTHERN CHILEAN COAST. J Parasitol. 2009 May 4;:1 Authors: Oliva ME, González MT, Ruz P, Luque JL Two new species, Choricotyle scapularis and Choricotyle isaciencis (Monogenea: Diclidophoridae), are described from the gills of haemulid fishes, Anisotremus scapularis and Isacia conceptionis, respectively, in San Jorge Bay, northern Chile (23 masculine42' S; 70 masculine24'W); they are compared with the known species in the genus. Diagnostic characters for C. scapularis includes the number of hooks in the male copulatory organ, a developed isthmus, the shape of the haptor, and the number of testes. The diagnostic ... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475970 Mon, 04 May 2009 04:00:00 +0100 2475970 http://www.medworm.com/index.php?rid=2475968&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19413366%26dopt%3DAbstract Authors: Quiazon KM, Yoshinaga T, Santos MD, Ogawa K The Alaska pollock, Theragra chalcogramma (Pallas), is an important raw source for surimi and other food products in Japan. However, Alaska pollock caught in the Atlantic and Mediterranean regions has been reported to harbor Anisakis species posing considerable food safety problems. Here, we identified the L3 Anisakis species sampled from Alaska pollock caught in northern Japan using a combination of morphological and molecular analyses, which include PCR-RFLP and sequencing of the ITS (ITS1-5.8S rDNA-ITS2) region and mtDNA cox2 gene markers. Four Anisakis species were confirmed, namely, Anisakis simplex (sensu stricto [s.s.]), A. pegreffii, A. brevispiculata, and Anisakis sp. belonging to the Anisakis Type II group. The identificati... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475968 Mon, 04 May 2009 04:00:00 +0100 2475968 http://www.medworm.com/index.php?rid=2475967&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19413367%26dopt%3DAbstract TWO NEW ANTARCTIC GYRODACTYLUS SPECIES (MONOGENOIDEA): DESCRIPTION AND PHYLOGENETIC CHARACTERIZATION. J Parasitol. 2009 May 4;:1 Authors: Rokicka M, Lumme J, Ziętara MS Two new species of Gyrodactylus Nordmann, 1832 (Gyrodactylidae, Monogenoidea) are described, i.e., Gyrodactylus coriicepsi n. sp. from gills of black rockcod, Notothenia coriiceps Richardson, 1844, and Gyrodactylus nudifronsi n. sp. from gills of gaudy notothen, Lepidonotothen nudifrons Lönnberg, 1905, collected in waters surrounding the South Shetland Islands, Antarctica. Gyrodactylus coriicepsi n. sp. is characterized by a long, narrowing membrane of the ventral bar and a marginal hook sickle with beveled heel and toe. Gyrodactylus nudifronsi n. sp. is characterized by a conspicuous ventral bar proc... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475967 Mon, 04 May 2009 04:00:00 +0100 2475967 http://www.medworm.com/index.php?rid=2475966&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19413368%26dopt%3DAbstract EIMERIA SPP. (APICOMPLEXA: EIMERIIDAE) FROM THE PLATEAU PIKA, OCHOTONA CURZONIAE, FROM HAIBEI AREA, QINGHAI PROVINCE, CHINA, WITH THE DESCRIPTION OF TWO NEW SPECIES. J Parasitol. 2009 May 4;:1 Authors: Yi-Fan C, Run-Roung Y, Jian-Hua W, Jiang-Hui B, Duszynski DW Fifty-two fecal samples from the Plateau pika, Ochotona curzoniae, collected in the Haibei Area, Qinghai Province, China, were examined for the presence of coccidia (Apicomplexa: Eimeriidae). Five distinct morphotypes, all Eimeria spp., were distinguished from the structure of their sporulated oocysts. Three of these included Eimeria banffensis, Eimeria calentinei, and Eimeria cryptobarretti, all of which have been described previously from other Ochotona species. We also studied 2 morphotypes that we feel have qualitat... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475966 Mon, 04 May 2009 04:00:00 +0100 2475966 http://www.medworm.com/index.php?rid=2475965&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19413369%26dopt%3DAbstract TICKS AND TICK-BORNE PATHOGENS AND PUTATIVE SYMBIONTS OF BLACK BEARS (URSUS AMERICANUS FLORIDANUS) FROM GEORGIA AND FLORIDA. J Parasitol. 2009 May 4;:1 Authors: Yabsley MJ, Nims TN, Savage MY, Durden LA Ticks were collected from 38 black bears (Ursus americanus floridanus) from northwestern Florida (n=18) from 2003-2005 and southern Georgia (n=20) in 2006. Five species (Amblyomma americanum, A. maculatum, Dermacentor variabilis, Ixodes scapularis, and I. affinis) were collected from Florida bears, whereas 4 species (A. americanum, A. maculatum, D. variabilis, I. scapularis) were collected from bears in Georgia. Ixodes scapularis was the most frequently collected tick, followed by D. variabilis, A. americanum, A. maculatum, and I. affinis. The collection of I. affinis from a Flo... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475965 Mon, 04 May 2009 04:00:00 +0100 2475965 http://www.medworm.com/index.php?rid=2475972&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19388790%26dopt%3DAbstract Authors: Carton Y, Frey F, Nappi A In larvae of Drosophila paramelanica, eggs and larvae of the endoparasitic wasp Leptopilina heterotoma succumb to an effective host reaction that does not involve blood cell-mediated melanotic encapsulation, a response that characterizes cellular immunity in various species of Drosophila, and in many insects and other arthropods. There occurs, however, a significant increase in the number of lamellocytes, a type of blood cell that functions in encapsulation reactions. The appearance of activated lamellocytes in D. paramelanica is viewed as an early response to infection, one most likely initiated by non-self recognition processes that similarly function in other wasp-infected Drosophila. However, ensuing cytotoxic responses, about which little is pres... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475972 Thu, 23 Apr 2009 04:00:00 +0100 2475972 http://www.medworm.com/index.php?rid=2475974&cid=s_37920_141_f&fid=37920&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D19385716%26dopt%3DAbstract SEROPREVALENCE OF TOXOPLASMA GONDII AND CONCURRENT BARTONELLA SPP., FELINE IMMUNODEFICIENCY VIRUS, AND FELINE LEUKEMIA INFECTIONS IN CATS FROM GRENADA, WEST INDIES. J Parasitol. 2009 Apr 22;:1 Authors: Dubey JP, Lappin M, Mofya S, Chikweto A, Baffa A, Doherty D, Shakeri J, C N L Macpherson CN, Sharma RN Toxoplasma gondii and Bartonella spp. are zoonotic pathogens of cats. Feline Immunodeficiency Virus (FIV), and Feline Leukemia Virus (FeLv) are related to Human Iimmunodeficiency Virus, and Human Leukemia Virus, respectively, and these viruses are immunosuppressive. In the present study, the prevalence of antibodies to T. gondi, Bartonella spp., FIV, and FeLv were determined in sera from 75 domestic and 101 feral cats (Felis catus) from the Caribbean Island of Grenada, West Indi... The Journal of Parasitology journals http://www.medworm.com/rss/comments.php?id=2475974 Wed, 22 Apr 2009 04:00:00 +0100 2475974