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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 18.

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Ralstonia pickettii-induced ataxia in immunodeficient mice.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We report here the characterization of an asymmetric ataxia syndrome (head tilt and circling, with death in the most severe cases) demonstrated by profoundly immunodeficient mice housed at the Institut Curie SPF facility. The immune system of the affected mice had been genetically modified so that they were deficient in both B and T cells. Extensive bacteriologic, parasitic, serologic, and histopathologic analysis of the affected animals and their healthy controls led us to identify Ralstonia pickettii as the causative agent of the ataxic syndrome. The outbreak was managed through a test-and-cull process. Even though they ...
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: Berard M, Medaille C, Simon M, Serre S, Pritchett-Corning K, Dangles-Marie V Tags: Comp Med Source Type: journals

Mousepox detected in a research facility: case report and failure of mouse antibody production testing to identify Ectromelia virus in contaminated mouse serum.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
An outbreak of mousepox in a research institution was caused by Ectromelia-contaminated mouse serum that had been used for bone marrow cell culture and the cells subsequently injected into the footpads of mice. The disease initially was diagnosed by identification of gross and microscopic lesions typical for Ectromelia infection, including foci of necrosis in the liver and spleen and eosinophilic intracytoplasmic inclusion bodies in the skin. The source of infection was determined by PCR analysis to be serum obtained from a commercial vendor. To determine whether viral growth in tissue culture was required to induce vi...
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: Labelle P, Hahn NE, Fraser JK, Kendall LV, Ziman M, James E, Shastri N, Griffey SM Tags: Comp Med Source Type: journals

Treatment of giardiasis in common marmosets (Callithrix jacchus) with tinidazole.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study sought to investigate the prevalence of Giardia in a colony of common marmosets by using a Giardia antigen-capture assay and to address the possible eradication of this infection by using tinidazole, an antiprotozoal similar to metronidazole but requiring fewer doses. Among 31 colony marmosets, 13 (42%) were positive for Giardia. Two doses of oral tinidazole eliminated the infection in all animals. Repeat testing of the 13 Giardia-positive monkeys 1 y later showed that 11 remained negative and that treated animals had a significant increase in weight at 1 y. Giardia antigen is common in common marmoset feces, an...
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: Kramer JA, Hachey AM, Wachtman LM, Mansfield KG Tags: Comp Med Source Type: journals

Serologic evaluation of clinical and subclinical secondary hepatic amyloidosis in rhesus macaques (Macaca mulatta).Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Secondary hepatic amyloidosis in nonhuman primates carries a grave prognosis once animals become clinically ill. The purpose of this study was to establish serologic parameters that potentially could be used to identify rhesus macaques undergoing subclinical development of secondary hepatic amyloidosis. A retrospective analysis was completed by using serum biochemical profiles from 26 histologically diagnosed amyloidotic macaques evaluated at 2 stages of disease, clinical and subclinical (3 to 32 mo prior to clinical signs of disease). Standard serum biochemistry values for cases were compared with institutional age- a...
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: MacGuire JG, Christe KL, Yee JL, Kalman-Bowlus AL, Lerche NW Tags: Comp Med Source Type: journals

Bovine colostral antibody against verotoxin 2 derived from Escherichia coli O157:H7: resistance to proteases and effects in beagle dogs.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A bovine colostral antibody against verotoxin (VT) 2 of Escherichia coli O157:H7 was administered orally to beagle dogs. The antibody remained in the dogs' small intestine for at least 2 h, whereas little serum antibody remained 1.5 h after administration. Furthermore, the antibody activity of secretory IgA did not change until 2 h after administration; however, the activity of IgG and IgM antibodies decreased by approximately 60% and 40% at 2 h after administration, respectively. Seven beagle dogs inoculated with Escherichia coli O157:H7 producing VT2 were administered bovine colostral antibody or bovine colostral whe...
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: Kuribayashi T, Seita T, Matsumoto M, Furuhata K, Tagata K, Yamamoto S Tags: Comp Med Source Type: journals

Intestinal cytokine mRNA expression in canine inflammatory bowel disease: a meta-analysis with critical appraisal.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Data implicating mucosal cytokines in the pathogenesis of canine inflammatory bowel disease (IBD) are limited. The aims of the present study were to report new findings of intestinal cytokine expression in dogs with IBD and to compare these data with previous studies through meta-analysis. Cytokine mRNA abundance in intestinal biopsies collected prospectively was evaluated by using a semiquantitative RT-PCR technique. For meta-analysis, an electronic database search revealed 3 clinical trials, all of which were nonrandomized (type III) case series. Prospective analysis showed that the intestines of healthy dogs and tho...
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: Jergens AE, Sonea IM, O'Connor AM, Kauffman LK, Grozdanic SD, Ackermann MR, Evans RB Tags: Comp Med Source Type: journals

Effect of inositol hexaphosphate on the development of UVB-induced skin tumors in SKH1 hairless mice.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, we investigated the protective effects of IP6 in drinking water on the incidence of UVB-induced skin cancer in the SKH1 (Crl: SKH1-hr) mouse model. One group of 15 mice received 2% IP6 in drinking water and UVB exposure, and the other group (n = 15) received UVB exposure only. All mice in both groups were fed an IP6-deficient diet (AIN 76A). The treatment group started receiving 2% IP6 in the drinking water 3 d before irradiation. Mice were irradiated 3 times each week, starting at a dose of 1.5 kJ/m2, with weekly increases in increments of 1.5 kJ/m2 to a final dose of 7.5 kJ/m2. Tumor formation was monitore...
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: Kolappaswamy K, Williams KA, Benazzi C, Sarli G, McLeod CG, Vucenik I, DeTolla LJ Tags: Comp Med Source Type: journals

Novel pathologic findings associated with urinary retention in a mouse model of mucopolysaccharidosis type IIIB.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Mucopolysaccharidosis type IIIB (MPS IIIB; Sanfilippo syndrome type B) is a metabolic disorder with devastating clinical characteristics starting in early childhood and leading to premature death. A knockout mouse strain was developed that models this disease. Mice of the strain B6.129S6- Naglu(tm1Efn)/J are invaluable for investigating pathogenesis and possible treatment modalities. However, the mouse strain also exhibits some objectionable phenotypic features. One such feature, urinary retention, not only is atypical of human MPS IIIB but often leads to early termination of experiments due to animal welfare concerns....
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: Gografe SI, Sanberg PR, Chamizo W, Monforte H, Garbuzova-Davis S Tags: Comp Med Source Type: journals

The spatial learning phenotype of heterozygous leaner mice is robust to systematic variation of the housing environment.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, a heterozygous mutation in a Ca(2+) channel gene causes cognitive deficits in leaner mice that are robust to environmental variation but attenuated by physical and behavioral stimulation. PMID: 19389304 [PubMed - indexed for MEDLINE]
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: Marques JM, Alonso I, Santos C, Silveira I, Olsson IA Tags: Comp Med Source Type: journals

Enhancing the ability of experimental autoimmune encephalomyelitis to serve as a more rigorous model of multiple sclerosis through refinement of the experimental design.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Advancing the understanding of the mechanisms involved in the pathogenesis of multiple sclerosis (MS) likely will lead to new and better therapeutics. Although important information about the disease process has been obtained from research on pathologic specimens, peripheral blood lymphocytes and MRI studies, the elucidation of detailed mechanisms has progressed largely through investigations using animal models of MS. In addition, animal models serve as an important tool for the testing of putative interventions. The most commonly studied model of MS is experimental autoimmune encephalomyelitis (EAE). This model can b...
Source: Comparative Medicine - April 1, 2009 Category: Zoology Authors: Emerson MR, Gallagher RJ, Marquis JG, LeVine SM Tags: Comp Med Source Type: journals

Effects of chronic heat stress on testicular structures, serum testosterone and cortisol concentrations in developing lambs.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, direct exposure of developing lambs during non-breeding season impairs testicular germ cells without significant effect on testicular endocrine function. PMID: 19428197 [PubMed - as supplied by publisher]
Source: Animal Reproduction Science - April 1, 2009 Category: Zoology Authors: Rasooli A, Taha Jalali M, Nouri M, Mohammadian B, Barati F Tags: Anim Reprod Sci Source Type: journals

Heifer nutrition during early- and mid-pregnancy alters fetal growth trajectory and birth weight.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, fetal development of cattle may be affected by maternal nutrition as early as day 39 of gestation. This may be followed by either compensatory fetal growth, or alternatively, preferential fetal tissue growth that is dependant upon maternal nutrition. Clearly, calf birth weight may be altered by maternal nutrition during mid-gestation. PMID: 19394770 [PubMed - as supplied by publisher]
Source: Animal Reproduction Science - April 1, 2009 Category: Zoology Authors: Micke GC, Sullivan TM, Soares Magalhaes RJ, Rolls PJ, Norman ST, Perry VE Tags: Anim Reprod Sci Source Type: journals

Interactions between nutritional and opioidergic pathways in the control of LH secretion in male sheep.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Our aim was to determine the role of opioidergic processes in the effects of nutrition on the secretion of LH pulses in the mature male sheep. In the first of three experiments, adult Merino rams were acclimatised to a maintenance diet and then allocated to one of three dietary groups (n=5): continuation of the maintenance diet (Group M); reduction to half of the maintenance allocation (Group HM); or supplementation of the maintenance diet with lupin grain (Group HD). An initial administration of naloxone (2mg/kg body weight, i.v.) was followed at 40-min intervals by three further administrations (1mg/kg). Blood was sa...
Source: Animal Reproduction Science - April 1, 2009 Category: Zoology Authors: Celi P, Miller DW, Blache D, Martin GB Tags: Anim Reprod Sci Source Type: journals

Expression profiles of sex differentiation-related genes during ontogenesis in the European sea bass acclimated to two different temperatures.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The European sea bass is a teleost fish that lacks sex chromosomes and for which temperature influences sex ratios. However, correlation between temperature, developmental stage at a given age and sex-specific gene expression is hampered by the lack of sex markers. To study this correlation, fish were exposed to feminizing (15 degrees C) or masculinizing temperature (21 degrees C) from 0-120 days post fertilization, throughout the thermosensitive period (TSP). Aromatase (cyp19a1a), 11beta-hydroxylase (cyp11b), androgen receptor (arb) and estrogen receptors (era, erb1 and erb2) were assessed by qPCR prior and during sex...
Source: Journal of Experimental Zoology. Part B. Molecular and Developmental Evolution - March 31, 2009 Category: Zoology Authors: Blázquez M, Navarro-Martín L, Piferrer F Tags: J Exp Zoolog B Mol Dev Evol Source Type: journals

Unanticipated population structure of European grayling in its northern distribution: implications for conservation prioritizationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: This research provides novel genetic information on European grayling in its northern distribution range and has clear implications for supporting country-scale conservation efforts. Specifically, the strong between population divergence observed indicates that single populations should generally be recognized as separate management units. We also introduced an alternative prioritization strategy for population conservation based on the evaluation of the relative roles of different evolutionary forces shaping the gene pools. We envision that the proposed approach to categorize populations for conservation will...
Source: Frontiers in Zoology - March 30, 2009 Category: Zoology Authors: Akarapong Swatdipong, Anti Vasemagi, Mikko T Koskinen, Jorma Piironen and Craig R Primmer Source Type: journals

Multiscale analysis reveals restricted gene flow and a linear gradient in heterozygosity for an island population of feral horsesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Z. L. Lucas, P. D. McLoughlin, D. W. Coltman, and C. Barber - We studied the genetic (microsatellite) diversity of a feral population of horses (Equus caballus L., 1758) on Sable Island, Nova Scotia, Canada (1983 - 2003), at two...
Source: Canadian Journal of Zoology - March 29, 2009 Category: Zoology Source Type: journals

Habitat selection of the Eurasian beaver (Castor fiber) near its carrying capacity: an example from NorwayEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
B. Pinto, M. J. Santos, and F. Rosell - The Eurasian beaver (Castor fiber L., 1758) was extirpated until the beginning of the twentieth century, but is becoming re-established over much of its former...
Source: Canadian Journal of Zoology - March 29, 2009 Category: Zoology Source Type: journals

Habitat selection by nesting and brood-rearing sharp-tailed grouseEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Alicia D. Goddard, Russell D. Dawson, and Michael P. Gillingham - Breeding success is a critical component of population stability and is often influenced by the habitats used during the breeding season. Current hypotheses suggest that...
Source: Canadian Journal of Zoology - March 29, 2009 Category: Zoology Source Type: journals

Differences in preovulatory follicle dynamics and timing of preovulatory LH surge affect fertility of maiden sheep reared in semi-arid extensive conditions.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In the current study follicular dynamics, pituitary function, ovulatory response and luteal activity of 30 maiden Barbarine sheep were analyzed according to oestrus occurrence and lambing outcome after oestrus synchronisation with cloprostenol. Animals were retrospectively classified in three groups named as O- (n=7, ewes not displaying oestrus), O+L- (n=7, ewes showing oestrus but failing to lamb) and O+L+ (n=16; ewes showing oestrus and lambing thereafter). All the sheep ovulated and daily transrectal ultrasonographies revealed that preovulatory follicles were present at cloprostenol injection in all the animals. In ...
Source: Animal Reproduction Science - March 28, 2009 Category: Zoology Authors: Salem IB, Rekik M, Gonzalez-Bulnes A, Lassoued N, Kraïem K Tags: Anim Reprod Sci Source Type: journals

Hydrogen Sulfide Induces Oxidative Damage to RNA and DNA in a Sulfide‐Tolerant Marine InvertebrateEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Physiological and Biochemical Zoology, Volume 0, Issue 0, Page 000, Latest Articles. Abstract Hydrogen sulfide acts as an environmental toxin across a range of concentrations and as a cellular signaling molecule at very low concentrations. Despite its toxicity, many animals, including the mudflat polychaete Glycera dibranchiata, are periodically or continuously exposed to sulfide in their environment. We tested the hypothesis that a broad range of ecologically relevant sulfide concentrations induces oxidative stress and oxidative damage to RNA and DNA in G. dibranchiata. Coelomocytes exposed in vitro to sulfide (0–...
Source: Physiological and Biochemical Zoology - March 27, 2009 Category: Zoology Tags: article Source Type: journals

Role of the 2 zebrafish survivin genes in vasculo-angiogenesis, neurogenesis, cardiogenesis and hematopoiesisEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: Overall, with the zebrafish model, we identify survivin as a key regulator of neurogenesis, vasculo-angiogenesis, hematopoeisis and cardiogenesis. These properties of survivin, which are consistent with those identified in mice, indicate that its functions are highly conserved across species, and point to the value of the zebrafish model in understanding the role of this IAP in the pathogenesis of human disease, and for exploring its potential as a therapeutic target.
Source: BMC Developmental Biology - Latest articles - March 26, 2009 Category: Zoology Authors: Mieke Delvaeye, Astrid DeVriese, Femke Zwerts, Inge Betz, Michael Moons, Monica Autiero and Edward M Conway Source Type: journals

Assessment of Radiolabeled d‐Glucose and the Nonmetabolizable Analog 3‐O‐Methyl‐d‐Glucose as Tools for In Vivo Absorption StudiesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Physiological and Biochemical Zoology, Volume 0, Issue 0, Page 000, Latest Articles. Abstract 3‐O‐methyl‐d‐glucose has been extensively used as a proxy for d‐glucose uptake. This nonmetabolizable analog has lower affinity for transporters, potentially leading to underestimates of glucose absorption rates as well as overestimates of the nutritional significance of passive uptake. Here we sought to precisely quantify the bias, if any, incurred when using 3‐O‐methyl‐d‐glucose by comparing relative absorption rates with d‐glucose in vivo in a seasonally frugivorous bird, the American robin. By simulta...
Source: Physiological and Biochemical Zoology - March 25, 2009 Category: Zoology Tags: article Technical Comment Source Type: journals

Expression of orexin receptors 1 (OX1R) and 2 (OX2R) in the porcine pituitary during the oestrous cycle.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Orexin A and B, also termed hypocretin 1 and 2, are associated with the stimulation of food intake and arousal. The biological actions of the hormones are mediated via two distinct G protein-coupled receptors, termed orexin receptor 1 (OX1R) and orexin receptor 2 (OX2R). OX1R is selective for orexin A and OX2R binds orexin A and orexin B with similar affinity. The present study analyzed mRNA and protein expressions of OX1R and OX2R in adenohypophysis (AP) and neurohypophysis (NP) of cycling pigs. The tissue samples were harvested on days 2-3, 10-12, 14-16, and 17-19 of the oestrous cycle. Using quantitative real-time P...
Source: Animal Reproduction Science - March 25, 2009 Category: Zoology Authors: Kaminski T, Smolinska N, Nitkiewicz A, Przala J Tags: Anim Reprod Sci Source Type: journals

The ontogeny of components of the renin-angiotensin system in the porcine fetal ovary.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
There is an autonomous renin-angiotensin system (RAS) in the adult ovary. Renin is present in the primitive kidney, and the fetal ovary develops from the nephrogenic ridge. We hypothesised that components of the ovarian RAS would be present from early gestation, with potential roles in ovarian development. We studied fetal pig ovaries from approximately day 45 ( approximately 0.39 gestation) to term and measured mRNA (RT-PCR) for prorenin, angiotensinogen and the angiotensin II (AngII) Type 1 and 2 receptors (AT(1) and AT(2)), and protein expression (Western blot) and localization (immunohistochemistry) of the AT(1) an...
Source: Animal Reproduction Science - March 25, 2009 Category: Zoology Authors: Pountain SJ, Pipkin FB, Hunter MG Tags: Anim Reprod Sci Source Type: journals

Mitochondrial distribution patterns in canine oocytes as related to the reproductive cycle stage.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study investigates the mitochondrial (mt) distribution in canine ovarian oocytes examined at recovery time, as related to the reproductive cycle stage, and in oviductal oocytes. Ovarian Germinal Vesicle (GV) stage oocytes were recovered from bitches in anestrous (A, n=2), follicular phase (F, n=4), ovulation (O, n=2), early luteal (EL, n=7) and mid/late luteal phase (MLL, n=2). Oviductal GV, metaphase I (MI) or MII stage oocytes were recovered from six bitches between 56 and 110h after ovulation. Mitochondria were revealed by using MitoTracker Orange CMTM Ros and confocal microscopy. In ovarian oocytes, three mt distr...
Source: Animal Reproduction Science - March 25, 2009 Category: Zoology Authors: Valentini L, Iorga AI, De Santis T, Ambruosi B, Reynaud K, Chastant-Maillard S, Guaricci AC, Caira M, Dell'aquila ME Tags: Anim Reprod Sci Source Type: journals

Effects of estrous cycle stage and transport temperature of ovaries on in vitro maturation of canine oocytes.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Unlike other domestic animals, in vitro maturation (IVM) of canine oocytes still has limited success. The present study investigated the effects of estrous cycle stage and transport temperature of ovaries on in vitro maturation of canine oocytes. The donor bitches were categorized into three groups based on stage of estrus cycle: follicular (proestrus or estrous), luteal (diestrus) and anestrus. One ovary of each pair collected from 39 mature bitches was transported in Phosphate Buffer Saline (PBS) at 4 degrees C while the other was transported at 37 degrees C. A total of 1138 Grade I COCs obtained from all ovaries wer...
Source: Animal Reproduction Science - March 24, 2009 Category: Zoology Authors: Evecen M, Cirit U, Demir K, Ozdaş OB, Taş M, Birler S, Pabuccuoğlu S Tags: Anim Reprod Sci Source Type: journals

Oestrus in the Julia Creek dunnart (Sminthopsis douglasi) is associated with wheel running behaviour but not necessarily changes in body weight, food consumption or pouch morphology.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study investigated the oestrous cycle of this species in terms of its reproductive physiology and behaviour to explore more efficient methods of oestrus detection. Ten sexually mature captive female dunnarts were monitored daily at David Fleay Wildlife Park, Burleigh Heads, Australia, from mid September to late December 2006 for changes in urogenital cytology within the urine (0, 1+, 2+ and 3+), running wheel activity, body weight, uneaten food, faecal steroid metabolites (progesterone and oestradiol) and pouch development. Periods of increased running wheel activity were associated (p=0.004) with an increase in the p...
Source: Animal Reproduction Science - March 24, 2009 Category: Zoology Authors: Pollock K, Booth R, Wilson R, Keeley T, Grogan K, Kennerley P, Johnston SD Tags: Anim Reprod Sci Source Type: journals

Gonadal morphology of the weedy seadragon, Phyllopteryx taeniolatus (Lacépède): characterisation of ovarian and testicular maturationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
K. L. Forsgren, K. A. Young - Volume 56(6)
Source: Australian Journal of Zoology - March 23, 2009 Category: Zoology Source Type: journals

Mammals of Russia and Adjacent Regions: Lagomorphs - By Sokolov, V.E., Ivanitskaya, E.Yu., Gruzdev, V.V., Heptner, V.G.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Source: Acta Zoologica - March 23, 2009 Category: Zoology Authors: Irina Ruf Source Type: journals

A sperm cryopreservation protocol for the loach Misgurnus anguillicaudatus and its applicability for other related species.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The aim of the present study was to establish a protocol of sperm cryopreservation in Misgurnus anguillicaudatus and verify the applicability of the obtained protocol in other loach species. We evaluated the following parameters: inseminating dose, thawing temperatures (20, 25 and 30 degrees C for 10s), extenders (loach or cyprinid extenders), internal cryoprotectants (dimethyl sulfoxide (DMSO), dimethylacetamide (DMA), glycerol (Gly), ethylene glycol (EG), and methanol (MeOH) at 0, 5, 10 and 15%), external cryoprotectants (bovine serum albumin 1 and 2%; sucrose 0.5 and 1%; glucose 0.5 and 1%; glycine 0.5 and 1%), acti...
Source: Animal Reproduction Science - March 21, 2009 Category: Zoology Authors: Yasui GS, Arias-Rodriguez L, Fujimoto T, Arai K Tags: Anim Reprod Sci Source Type: journals

Metabolic Alkalosis due to Feeding Chicks in Breeding Adélie Penguins Pygoscelis adeliae under Natural ConditionsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, the concentrations of Cl−, HCO3−, Na+, K+, pH, and $\mathrm{P}\,\textsc{$co$}_{2}$ in the blood of breeding Adélie penguins were measured throughout the chick‐rearing season. The pH of penguin venous blood shifted from 7.54 in the guarding period to 7.47 in the crèche period. Decreasing Cl− and increasing HCO3− blood concentrations in parents were associated with increasing mass of their brood in the guarding period, the early phase of the rearing season, indicating that regurgitating to feed chicks causes loss of gastric acid and results in relative metabolic alkalosis. The inverse trend was obs...
Source: Physiological and Biochemical Zoology - March 20, 2009 Category: Zoology Tags: article Source Type: journals

Iodothyronine deiodinases and thyroid hormone receptors regulation during flatfish (Solea senegalensis) metamorphosis.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Thyroid hormone-induced metamorphosis seems to represent an ancestral feature of chrordates (urochordates, cephalochordates and vertebrates), but also of nonchordate animals. Although thyroid hormones and thyroid hormone receptor profiles during metamorphosis have been analyzed in different vertebrate taxa, including fish, developmental expression and activity of type 2 (dio2, D2) and type 3 (dio3, D3) iodothyronine deiodinases, two key enzymes in anuran metamorphosis, remain unknown in any fish species. The aim of this work was to investigate the development of thyroid hormone system during the metamorphosis of a flat...
Source: Journal of Experimental Zoology. Part B. Molecular and Developmental Evolution - March 20, 2009 Category: Zoology Authors: Isorna E, Obregon MJ, Calvo RM, Vázquez R, Pendón C, Falcón J, Muñoz-Cueto JA Tags: J Exp Zoolog B Mol Dev Evol Source Type: journals

Histology, histochemistry and morphometry of the ovary of the adult plains viscacha (Lagostomus maximus) in different reproductive stagesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Flamini, M.A., Barbeito, C.G., Gimeno, E.J. and Portiansky, E.L. 2008. Histology, histochemistry and morphometry of the ovary of the adult plains viscacha (Lagostomus maximus) in different reproductive stages. [mdash]Acta Zoologica (Stockholm) XX: xx[ndash]xx. Lagostomus maximus is a South American Hystricognathi rodent whose reproductive behaviour shows characteristics unusual for mammals, such as polyovulation (200[ndash]800 oocytes) and a high rate of embryo mortality. Thirty-six mature females captured in the province of Buenos Aires showed different physiological reproductive stages. Most of them presented a postpartu...
Source: Acta Zoologica - March 19, 2009 Category: Zoology Authors: Mirta Alicia Flamini, Claudio Gustavo Barbeito, Eduardo Juan Gimeno, Enrique Leo Portiansky Source Type: journals

Gross anatomy of the musculature and a new description of the reproductive system of Tanaisia bragai and Tanaisia inopina (Trematoda: Eucotylidae) analysed by confocal laser scanning microscopyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
D'ávila, S., Manso, P.P.A., Bessa, E.C.A., Rodrigues, M.L.A., Dias, R.J.P. 2009. Gross anatomy of the musculature and a new description of the reproductive system of Tanaisia bragai and Tanaisia inopina (Trematoda: Eucotylidae) analysed by confocal laser scanning microscopy. [mdash]Acta Zoologica (Stockholm) 00: 000[ndash]000. Confocal scanning laser microscopy has become an important tool to clarify the organization of the musculature and innervation, as well as the morphology of the reproductive and alimentary tract of various helminth species. The goal of this work was to describe the morphology of the reproductive sys...
Source: Acta Zoologica - March 19, 2009 Category: Zoology Authors: Sthefane D'ávila, Pedro Paulo de Abreu Manso, Elisabeth Cristina de Almeida Bessa, Maria de Lurdes de Azevedo Rodrigues, Roberto Júnio Pedroso Dias Source Type: journals

The tritocerebrum and the clypeolabrum in mandibulate arthropods: segmental interpretationsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Bitsch, J. and Bitsch, C. 2009. The tritocerebrum and the clypeolabrum in mandibulate arthropods: segmental interpretations. [mdash] Acta Zoologica (Stockholm) xx: 000[ndash]000 Different interpretations of the segmental composition of the head in mandibulate arthropods are critically reviewed, with particular focus on three closely associated structures: the tritocerebrum, the stomatogastric nervous system and the clypeolabrum. The main conclusions arising from the different discussions are the following. (1) Each tritocerebral ganglion has a dual composition, clearly discernable in some crustacean and hexapod species, in...
Source: Acta Zoologica - March 19, 2009 Category: Zoology Authors: Jacques Bitsch, Colette Bitsch Source Type: journals

Redundancy of myostatin and growth/differentiation factor 11 functionEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: These results provide evidence that myostatin and Gdf11 have redundant functions in regulating skeletal patterning in mice but most likely not in regulating muscle size.
Source: BMC Developmental Biology - Latest articles - March 19, 2009 Category: Zoology Authors: Alexandra C McPherron, Thanh V Huynh and Se-Jin Lee Source Type: journals

Spatiotemporal association of DNAJB13 with the annulus during mouse sperm flagellum developmentEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: The direct interaction of DNAJB13 with SEPT4 in vitro and its spatiotemporal association with the annulus during sperm flagellum development, and even its annulus-like appearance in the annulus-deficient spermatids, suggest that DNAJB13 may be involved in assembling the annulus structure and positioning it towards the midpiece-principal piece junction.
Source: BMC Developmental Biology - Latest articles - March 19, 2009 Category: Zoology Authors: Jikui Guan, Makoto Kinoshita and Li Yuan Source Type: journals

The morphology and post-hatching development of the skull of Bolitoglossa nicefori (Caudata: Plethodontidae): developmental implications of recapitulation and repatterning.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The cranial morphology of the direct-developing salamander Bolitoglossa nicefori and its post-hatching development are described and compared with that of other urodeles. Four stages of cranial development are defined on the basis of conspicuous events that occur during post-hatching ontogeny. The adult skull morphology of B. nicefori is similar to that of other plethodontids; however, some regions show interspecific variation. The post-hatching ontogeny of the skull and the stage of ossification observed in the hatchlings of B. nicefori show two important ontogenetic features: (1) a mosaic of early larval, metamorphic...
Source: Zoology - March 19, 2009 Category: Zoology Authors: Dulcey Cala CJ, Tarazona OA, Ramírez-Pinilla MP Tags: Zoology (Jena) Source Type: journals

Dogs with Leishmania chagasi infection have semen abnormalities that partially revert during 150 days of Allopurinol and Amphotericin B therapy.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The goal of the present study was to characterize the semen quality of dogs naturally infected with Leishmaniachagasi, and treated with Allopurinol and Amphotericin B. Eight naturally infected and eight non-infected dogs were selected. Following semen collection, progressive motility, vigor, concentration and sperm morphology were evaluated. The seminal patterns in the treated animals were evaluated at the beginning (d0) and at days 30 (d30), 60 (d60) and 150 (d150) of treatment. The progressive motility at d0 (35.7+/-22.3%) was less than that of the control group (77.8+/-7.1%) (P<0.05). The vigor was similar to the...
Source: Animal Reproduction Science - March 19, 2009 Category: Zoology Authors: Assis VP, Ribeiro VM, Rachid MA, Castro AC, Valle GR Tags: Anim Reprod Sci Source Type: journals

Habitat, movements, and behaviour of overwintering Blanding’s turtles (Emydoidea blandingii) in Nova ScotiaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Erica J. Newton and Thomas B. Herman - The overwintering ecology of a disjunct population complex of Blanding’s turtles (Emydoidea blandingii (Holbrook, 1838)) in southwestern Nova Scotia was studied from January 2005 to...
Source: Canadian Journal of Zoology - March 18, 2009 Category: Zoology Source Type: journals

Conservation status and biogeography of Australia's terrestrial mammalsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Andrew A. Burbidge, N. L. McKenzie, K. E. C. Brennan, J. C. Z. Woinarski, C. R. Dickman, A. Baynes, G. Gordon, P. W. Menkhorst, A. C. Robinson - Volume 56(6)
Source: Australian Journal of Zoology - March 17, 2009 Category: Zoology Source Type: journals

Biogeographical effects on body mass of native Australian and introduced mice, Pseudomys hermannsburgensis and Mus domesticus: an inquiry into Bergmann's RuleEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Sean Tomlinson, Philip C. Withers - Volume 56(6)
Source: Australian Journal of Zoology - March 17, 2009 Category: Zoology Source Type: journals

Age structure, mortality and breeding in a population of agile wallabies (Macropus agilis)Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Simon C. Stirrat - Volume 56(6)
Source: Australian Journal of Zoology - March 17, 2009 Category: Zoology Source Type: journals

Activation of an AMP-activated protein kinase is involved in post-diapause development of Artemia franciscana encysted embryosEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: Together, we report evidence demonstrating the activation of AMPK in Artemia developing cysts and present an argument for its role in the development-related gene expression and energy control in certain cells during post-diapause development of Artemia.
Source: BMC Developmental Biology - Latest articles - March 16, 2009 Category: Zoology Authors: Xiao-jing Zhu, Jie-Qiong Dai, Xin Tan, Yang Zhao and Wei-Jun Yang Source Type: journals

Expression of transmembrane carbonic anhydrases, CAIX and CAXII, in human developmentEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: The study has showed that: 1) HIF-1alpha and CAIX expression co- localized in many, but not all, of the embryonic and early fetal tissues; 2) There is no evidence of co-localization of CAIX and CAXII; 3) CAIX and CAXII expression is closely related to cell origin and secretory activity involving proton transport, respectively. The intriguing finding of rare CAIX-expressing cells in those sites corresponding to stem cell niches requires further investigation.
Source: BMC Developmental Biology - Latest articles - March 16, 2009 Category: Zoology Authors: Shu-Yuan Liao, Michael I Lerman and Eric J Stanbridge Source Type: journals

Dates of issue / Dates de publicationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
- Read article abstract for details.
Source: Canadian Journal of Zoology - March 14, 2009 Category: Zoology Source Type: journals

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