Reproduction Medicine 
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This page shows you the most recent publications within this specialty of the MedWorm directory.
41106 records returned
A "view from nowhen" on time perception experiments. - Riemer M, Trojan J, Kleinböhl D, Hölzl R.
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Systematic errors in time reproduction tasks have been interpreted as a misperception of time and therefore seem to contradict basic assumptions of pacemaker-accumulator models. Here we propose an alternative explanation of this phenomenon based on methodo... (Source: SafetyLit: All (Unduplicated))
Source: SafetyLit: All (Unduplicated) - February 6, 2012 Category: Global & Universal Tags: Distraction, Fatigue, Chronobiology, Vigilance, Workload Source Type: news
Annual Summary of Vital Statistics: 2009. - Kochanek KD, Kirmeyer SE, Martin JA, Strobino DM, Guyer B.Email this article to a colleague.
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The number of births in the United States decreased by 3% between 2008 and 2009 to 4 130 665 births. The general fertility rate also declined 3% to 66.7 per 1000 women. The teenage birth rate fell 6% to 39.1 per 1000. Birth rates also declined for wome... (Source: SafetyLit: All (Unduplicated))
Source: SafetyLit: All (Unduplicated) - February 6, 2012 Category: Global & Universal Tags: Age: Adolescents Source Type: news
More Americans Seeking Love Online: StudyEmail this article to a colleague.
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Dating websites offer romance, but 'science' behind claims is called sketchy (Source: Fertility News - Doctors Lounge)
Source: Fertility News - Doctors Lounge - February 6, 2012 Category: Reproduction Medicine Authors: webmaster at doctorslounge.com Tags: Family Medicine, Pediatrics, Reproductive Medicine, News, Source Type: news
Clinical Efficacy of Macrophage-Activating Chinese Mixed Herbs (MACH) in Improvement of Embryo Qualities in Women with Long-Term Infertility of Unknown Etiology.Email this article to a colleague.
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Abstract
Despite the recent technological advances in in vitro fertilization and embryo transfer (IVF-ET), a significant proportion of women still do not become pregnant after long-term infertility, whether it is originally due to older age or other undetermined factors. In the present study, macrophage activating Chinese herbs (MACH) were evaluated for their effects on embryo qualities in women who were undergoing repeated IVF-ET because of long-term infertility. Thirty women, who had significantly low rates of developing good quality cleaved embryos and did not become pregnant after three or more cycles of Assist...
Source: The American Journal of Chinese Medicine - February 5, 2012 Category: Complementary Medicine Authors: Ushiroyama T, Yokoyama N, Hakukawa M, Sakuma K, Ichikawa F, Yoshida S Tags: Am J Chin Med Source Type: research
Tubal Reversal Baby Testimonial # 1251Email this article to a colleague.
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Many people contact Chapel Hill Tubal Reversal Center and ask if it is possible to have a baby after Falope ring tubal ligation. Falope rings, sometimes called tubal rings or tubal bands, can be removed and the remaining tubal segments rejoined to allow pregnancy to occur again. This Pregnancy Report gives an example of the results of this kind of tubal reversal procedure. Stacie F. of Powell, Wyoming had her Falope ring ligation reversed by Dr. Berger in March of 2009 and gave birth to a tubal reversal baby girl in March of 2010 and then a tubal reversal baby boy in November of 2011. (Source: Tubal Ligation Reversal News)
Source: Tubal Ligation Reversal News - February 5, 2012 Category: Reproduction Medicine Source Type: news
A Date For Tubal Reversal Chosen!Email this article to a colleague.
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A very excited member of the Tubal Reversal Message Board announces that she has chosen April 9, 2012 for her tubal reversal surgery. She contacted a tubal reversal nurse to help her with scheduling her ligation reversal surgery. Chapel Hill Tubal Reversal Center is available 7 days a week to assist patients and potential patients. A free consultation with an experienced Tubal Reversal Nurse is offered to women interested in a Tubal Ligation Reversal. Chapel Hill Tubal Reversal Center is the best place to have your tubal ligation reversed. (Source: Tubal Ligation Reversal News)
Source: Tubal Ligation Reversal News - February 5, 2012 Category: Reproduction Medicine Source Type: news
Mortality and morbidity risks and economic behaviorEmail this article to a colleague.
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SUMMARYThere are theoretical reasons to expect that high risk of mortality or morbidity during young adulthood decreases investment in human capital. However, investigation of this hypothesis is complicated by a variety of empirical challenges, including difficulties in inferring causation due to omitted variables and reverse causation. For example, to compare two groups with substantially different mortality rates, one typically has to use samples from different countries or periods, making it difficult to control for other relevant variables. Reverse causation is important because human capital investment can affect mort...
Source: Health Economics - February 5, 2012 Category: Health Management Authors: Avraham StolerDavid Meltzer Tags: Research Article Source Type: research
endocrine therapies for breast cancerEmail this article to a colleague.
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Estrogen receptor-positive breast cancer can be treated with endocrine therapies, also called hormonal therapies. These drugs come in two classes: selective estrogen receptor modulators (SERMs)and aromatase inhibitors. These lower your estrogen levels, and may affect your fertility, as well as preventing a recurrence of breast cancer. Learn more about endocrine therapies for breast cancer. (Source: About.com Breast Cancer)
Source: About.com Breast Cancer - February 5, 2012 Category: Cancer & Oncology Authors: breastcancer.guide at about.com Tags: health Source Type: news
Tubal Reversal Baby Testimonial #1250Email this article to a colleague.
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A tubal reversal patient of Chapel Hill Tubal Reversal Center writes in with her baby testimonial. Vanessa L. from Grantbsburg, Wisconsin had her tubes untied in April of 2010 and gave birth to her tubal reversal baby boy in January of 2012. She writes, "God bless you Dr. Berger for making this TR miracle happen! My husband and I are so happy and thankful to have you perform the tubal reversal surgery to make this possible! The journey post tubal reversal to get where we are today is totally and completely worth it, and we couldn't be any more satisfied!" (Source: Tubal Ligation Reversal News)
Source: Tubal Ligation Reversal News - February 4, 2012 Category: Reproduction Medicine Source Type: news
Tubal Reversal By Microsurgical SalpingostomyEmail this article to a colleague.
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A member of the Tubal Reversal Message Board writes in to inquire about the tubal reversal technique called microsurgical salpingostomy. Microsurgical salpingostomy is performed by creating a small opening in the remaining end of the fallopian tube with a microsurgical needle electrode. The newly created opening is then enlarged and gently folded back like the petals of a flower to allow the internal endothelial lining to emerge and extend over the opened tubal end. Since healthy tubal endothelium is covered with cilia - the hairline projections that beat in coordinated waves - the new tubal opening or ostium can capture a...
Source: Tubal Ligation Reversal News - February 4, 2012 Category: Reproduction Medicine Source Type: news
Preparing For Tubal Reversal SurgeryEmail this article to a colleague.
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A member of the Tubal Reversal Message Board posts that she is planning to see her local doctor to have a consult to prepare for having ligation reversal surgery at Chapel Hill Tubal Reversal Center. Other message board members give their support and encouragement. The Tubal Reversal Message Board is a very helpful resource that many Chapel Hill Tubal Reversal patients use. Patients and potential patients can join the Tubal Reversal Message Board to help find support as well as answers to many of their questions. Chapel Hill Tubal Reversal Center is the only facility in the United States dedicated solely to the practice of...
Source: Tubal Ligation Reversal News - February 3, 2012 Category: Reproduction Medicine Source Type: news
Struggling for a year to get pregnant? You should try again, says studyEmail this article to a colleague.
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If you have been struggling to get pregnant for a year, you still have almost as much chance of having a baby naturally as of conceiving by using fertility hormones or IVF, Australian doctors found. (Source: the Mail online | Health)
Source: the Mail online | Health - February 3, 2012 Category: Consumer Health News Source Type: news
Abnormal male meiosis explains pollen sterility in the polyploid medicinal plant Pinellia ternata (Araceae).Email this article to a colleague.
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Abnormal male meiosis explains pollen sterility in the polyploid medicinal plant Pinellia ternata (Araceae).
Genet Mol Res. 2012;11(1):112-20
Authors: Liu Y, Hui RK, Deng RN, Wang JJ, Wang M, Li ZY
Abstract
Pinellia ternata is an important traditional Chinese medicinal plant. Its different populations in China have various ploidy levels, based on x = 13, as well as extensive aneuploid series. The microsporogenesis process was observed in specimens from three populations from three regions of Hubei Province; they were characterized by normal and abnormal meiotic divisions in pollen mother cells (PMCs) at all...
Source: Genetics and Molecular Research - February 3, 2012 Category: Genetics & Stem Cells Authors: Liu Y, Hui RK, Deng RN, Wang JJ, Wang M, Li ZY Tags: Genet Mol Res Source Type: research
Men With Reduced Fertility At Reduced Risk For Prostate CancerEmail this article to a colleague.
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Involuntary childlessness owing to reduced fertility is a concern for many men. However, these men do have one advantage - they run a significantly lower risk of suffering from prostate cancer. Researchers are interested in whether this phenomenon could be used in the fight against cancer. There is a clear link between male subfertility and a lower risk of prostate cancer. According to a new thesis from Lund University in Sweden, involuntarily childless men have around a 50 per cent lower risk of suffering from prostate cancer than men who have fathered at least one child... (Source: Health News from Medical News Today)
Source: Health News from Medical News Today - February 3, 2012 Category: Consumer Health News Tags: Fertility Source Type: news
Tainted juice saga reveals shocking truth about how much food we importEmail this article to a colleague.
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Last month, the Coca-Cola Company notified the US Food and Drug Administration (FDA) that imported orange juice it uses in some of its drink products was found to be tainted with carbendazim, an illegal crop fungicide linked to infertility and testicular damage. Less... (Source: NaturalNews.com)
Source: NaturalNews.com - February 3, 2012 Category: Consumer Health Advice Source Type: news
[Original Articles] Fertility Treatment Response: Is It Better to Be More Optimistic or Less Pessimistic?Email this article to a colleague.
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Conclusions
Being pessimistic may be a risk factor for IVF treatment failure. Future research should attempt to delineate the biological and behavioral mechanisms by which pessimism may negatively affect treatment outcomes. (Source: Psychosomatic Medicine)
Source: Psychosomatic Medicine - February 3, 2012 Category: Psychiatry & Psychology Authors: Bleil, M. E., Pasch, L. A., Gregorich, S. E., Millstein, S. G., Katz, P. P., Adler, N. E., for the Infertility Outcomes Program Project Group Tags: Personality, Pharmacology Original Articles Source Type: research
Flap over Designer Sperm in IndiaEmail this article to a colleague.
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An ad for sperm from “tall and fair” technology students sparks a debate in India about designer babies.read more (Source: Psychology Today Parenting Center)
Source: Psychology Today Parenting Center - February 2, 2012 Category: Psychiatry & Psychology Authors: Marcy Darnovsky, Ph.D. Tags: Ethics and Morality Parenting Politics Race and Ethnicity Social Life absolute rubbish apartheid assisted reproduction assisted reproductive technologies bad habits blogs cars caste caste system chennai debates designer bab Source Type: news
Tubal Reversal Pregnancies 4th week January 2012Email this article to a colleague.
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Pregnancy announcements from Chapel Hill Tubal Reversal Center for the 4th week of January, 2012. Lynn F., from Laguna Niguel, California writes, "I've always felt something was missing after my tubes were tied and will now feel complete with my dream of having four children. With our sincerest gratitude to Dr. Berger!" (Source: Tubal Ligation Reversal News)
Source: Tubal Ligation Reversal News - February 2, 2012 Category: Reproduction Medicine Source Type: news
Requirements For Lab Work at Chapel Hill Tubal Reversal CenterEmail this article to a colleague.
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Many women who are new to Chapel Hill Tubal Reversal Center are anxious to get started with planning for their reverse tubal ligation surgery. They want to have orders for lab work faxed over to their preferred labs prior to scheduling. It may be better to wait until actually scheduled before having the lab work done as lab results are good only for 90 days prior to surgery. Scheduling surgery with Dr. Gary Berger and Dr. Charles Monteith should be done at least four weeks prior to the desired surgical date. This will leave plenty of time for all requirements to be fulfilled and to secure the date that you want. (Source: T...
Source: Tubal Ligation Reversal News - February 2, 2012 Category: Reproduction Medicine Source Type: news
Countertransference: When Is Yours Mine?Email this article to a colleague.
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Meeting Lyn and Rob was hard from the start. I knew from her phone message that they had lost their dear son after nine months gestation, during delivery. It never gets any easier even after years of hearing one very sad story after another. "He was perfect," she sat close to her husband in my office and shook her head in disbelief.read more (Source: Psychology Today Depression Center)
Source: Psychology Today Depression Center - February 2, 2012 Category: Psychiatry & Psychology Authors: Karen Kleiman, MSW, LCSW Tags: Depression dear son disbelief emptiness five months grief history of depression lyn miscarriages new baby nine months obstetrician phone message reproduction sad story safe place uneventful pregnancy Source Type: news
Think you can't get pregnant? Try again, study saysEmail this article to a colleague.
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NEW YORK (Reuters Health) - Almost half of women who said they'd been struggling to get pregnant for at least a year ended up having a baby despite not getting fertility treatment, in a new study from Australia. (Source: Reuters: Health)
Source: Reuters: Health - February 2, 2012 Category: Consumer Health News Tags: healthNews Source Type: news
Think You Can't Get Pregnant? Try Again, Study SaysEmail this article to a colleague.
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Almost half of women who said they'd been struggling to get pregnant for at least a year ended up having a baby despite not getting fertility treatment, in a new study from Australia.Source: Reuters Health
Related MedlinePlus Page: Female Infertility (Source: MedlinePlus Health News)
Source: MedlinePlus Health News - February 2, 2012 Category: Consumer Health News Source Type: news
Vitamin E effect on controlled ovarian stimulation of unexplained infertile womenEmail this article to a colleague.
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Conclusion Vit E administration may improve the endometrial response in unexplained infertile women via the likely antioxidant and the
anticoagulant effects. It may also modulate the antiestrogenic effect of clomiphene citrate and the problem of a thin endometrium
in these cycles may be adjusted.
Content Type Journal ArticleCategory ASSISTED REPRODUCTION TECHNOLOGIESPages 1-4DOI 10.1007/s10815-012-9714-1Authors
Nedim Cicek, Zekai Tahir Burak Women Education and Research Hospital, Obstetrics and Gynecology, Devlet Mah. Subay Loj.Hızırreis Apt.No:19/11 Yenisehir, Ankara, TurkeyOzlem Gun Eryilmaz, Ze...
Source: Journal of Assisted Reproduction and Genetics - February 2, 2012 Category: Reproduction Medicine Tags: Journal of Assisted Reproduction and Genetics Source Type: research
The effect of micronutrient supplements on female fertility: a systematic reviewEmail this article to a colleague.
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Conclusion Although some studies suggest possible effects of micronutrients on female fertility general recommendations are not possible
since all studies had methodological or statistical limitations. Further investigations using evidence-based criteria are
necessary to analyze and to confirm these non-evident appearances.
Content Type Journal ArticleCategory Reproductive MedicinePages 1-9DOI 10.1007/s00404-012-2237-2Authors
Donata Grajecki, Department of Gynecological Endocrinology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, GermanyBirgit-Christine Zyriax, Endoc...
Source: Archives of Gynecology and Obstetrics - February 2, 2012 Category: OBGYN Tags: Archives of Gynecology and Obstetrics Source Type: research
New European pill works against uterine fibroidsEmail this article to a colleague.
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New research offers hope for the first pill to treat a common problem in young women: fibroids in the uterus. The growths can cause pain, heavy bleeding and fertility problems, and they are the leading cause of hysterectomies. (Source: CTV Health)
Source: CTV Health - February 2, 2012 Category: Consumer Health News Source Type: news
Detailed Analysis of Peripheral Blood Natural Killer Cells in Women with Repeated IVF FailureEmail this article to a colleague.
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ConclusionsPeripheral blood NK cell activity is significantly higher in women with RIF than in fertile controls. Future trials of immune therapy in women undergoing IVF should target those with high NK activity. (Source: American Journal of Reproductive Immunology)
Source: American Journal of Reproductive Immunology - February 2, 2012 Category: Allergy & Immunology Authors: Gavin SacksYang YangElizabeth GowenSusan SmithLouise FayMichael Chapman Tags: Original Article Source Type: research
Women Over Age 50 Not At Increased Risk During Pregnancy Via Egg Donation Compared To Younger WomenEmail this article to a colleague.
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Although women over age 50 who become pregnant via egg donation are at an elevated risk for developing obstetrical complications, their complication rates are similar to those of younger recipients, according to a study by Columbia University Medical Center researchers to be published in the February 2012 issue of the American Journal of Perinatology. This is contrary to epidemiological data suggesting that these women are at greater risk of certain complications of pregnancy, including hypertension, gestational diabetes, premature birth, and placenta abnormalities... (Source: Health News from Medical News Today)
Source: Health News from Medical News Today - February 2, 2012 Category: Consumer Health News Tags: Fertility Source Type: news
Evaluation of the Role of Functional Constraints on the Integrity of an Ultraconserved Region in the Genus DrosophilaEmail this article to a colleague.
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by Carlos Díaz-Castillo, Xiao-Qin Xia, José M. Ranz
Why gene order is conserved over long evolutionary timespans remains elusive. A common interpretation is that gene order conservation might reflect the existence of functional constraints that are important for organismal performance. Alteration of the integrity of genomic regions, and therefore of those constraints, would result in detrimental effects. This notion seems especially plausible in those genomes that can easily accommodate gene reshuffling via chromosomal inversions since genomic regions free of constraints are likely to have been disrupted in one or m...
Source: PLoS Genetics - February 2, 2012 Category: Genetics & Stem Cells Authors: Carlos Díaz-Castillo et al. Source Type: research
Association between obesity and alteration of sperm DNA integrity and mitochondrial activityEmail this article to a colleague.
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CONCLUSION• Increased BMI values are associated with decreased mitochondrial activity and progressive motility and increased DNA fragmentation. (Source: BJU International)
Source: BJU International - February 2, 2012 Category: Urology & Nephrology Authors: Roberta M. FarielloJuliana R. ParizDeborah M. SpaineAgnaldo P. CedenhoRicardo P. BertollaRenato Fraietta Source Type: research
Novel Serum Markers for Early Diagnosis of EndometriosisNovel Serum Markers for Early Diagnosis of EndometriosisEmail this article to a colleague.
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Are there certain biomarkers that can help clinicians make a definitive diagnosis of endometriosis? Human Reproduction (Source: Medscape Today Headlines)
Source: Medscape Today Headlines - February 1, 2012 Category: Consumer Health News Tags: Ob/Gyn & Women ' s Health Journal Article Source Type: news
Planning Your Tubal Reversal SurgeryEmail this article to a colleague.
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A member of the Tubal Reversal Message Board asks what steps she needs to take to have her tubes untied at Chapel Hill Tubal Reversal Center. It is helpful for patients to obtain the records from their tubal ligation procedure. If tubes were cut and tied, a pathology report from the hospital should also be available. Once your records are received at Chapel Hill Tubal Reversal Center, a Tubal Reversal Nurse will contact you within 24 hours. If you are not able to obtain your records right away, you can still schedule your tubal ligation reversal with Dr. Gary Berger or Dr. Charles Monteith, the top two tubal reversal docto...
Source: Tubal Ligation Reversal News - February 1, 2012 Category: Reproduction Medicine Source Type: news
How Soon Can I Have Tubal Reversal Surgery?Email this article to a colleague.
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Women with a tubal ligation who want to have more children have two treatment options: tubal ligation reversal or in-vitro fertilization (IVF). The best option to become pregnant for most women is tubal ligation reversal. At Chapel Hill Tubal Reversal Center, Tubal Reversal Nurses are available 7 days a week to assist potential patients with scheduling tubal reversal surgery with Dr. Berger or Dr. Charles Monteith. It is often possible to schedule surgery within 1-3 weeks. The tubal reversal doctors at Chapel Hill Tubal Reversal Center are the only doctors in the world who specialize solely in reverse tubal ligation surger...
Source: Tubal Ligation Reversal News - February 1, 2012 Category: Reproduction Medicine Source Type: news
Seed therapy for prostate cancer may zap fertilityEmail this article to a colleague.
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NEW YORK (Reuters Health) - Radioactive "seeds" that are sometimes used to treat early prostate cancer may do widespread damage to the DNA in a man's sperm, a small study finds. (Source: Reuters: Health)
Source: Reuters: Health - February 1, 2012 Category: Consumer Health News Tags: healthNews Source Type: news
Seed Therapy for Prostate Cancer May Zap FertilityEmail this article to a colleague.
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Radioactive "seeds" that are sometimes used to treat early prostate cancer may do widespread damage to the DNA in a man's sperm, a small study finds.Source: Reuters Health
Related MedlinePlus Pages: Male Infertility, Prostate Cancer (Source: MedlinePlus Health News)
Source: MedlinePlus Health News - February 1, 2012 Category: Consumer Health News Source Type: news
Pelvic Inflammatory Disease: Current Concepts of Diagnosis and ManagementEmail this article to a colleague.
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Abstract Pelvic inflammatory disease (PID), one of the most common infections in non-pregnant women of reproductive age, remains an
important public health problem. It is associated with major long-term sequelae, including tubal factor infertility, ectopic
pregnancy, and chronic pelvic pain. In addition, treatment of acute PID and its complications incurs substantial health care
costs. Prevention of these long-term sequelae is dependent upon clinicians having a high index of suspicion in order to make
an early diagnosis and development of treatment strategies based on knowledge of the microbiologic etiology ...
Source: Current Infectious Disease Reports - February 1, 2012 Category: Infectious Diseases Tags: Current Infectious Disease Reports Source Type: research
Uganda: The Ongoing Perils of Child BirthEmail this article to a colleague.
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[Independent]
Fertility rates in Rwanda have been falling steadily over the past several years, but this year close to 400,000 Rwandan women will become pregnant and give birth. Next door in Uganda, four times as many women will become pregnant, approximately 1.5 million. If recent trends hold, nearly 10,000 of these women will lose their lives during or shortly after their pregnancy. Many of them will suffer from bleeding and infections that can be treated or prevented. (Source: AllAfrica News: Pregnancy and Childbirth)
Source: AllAfrica News: Pregnancy and Childbirth - February 1, 2012 Category: OBGYN Source Type: news
Ultrasound Male Contraceptive, Overlooked For Decades, Confirmed To WorkEmail this article to a colleague.
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Imagine a contraceptive that could, with one or two painless 15-minute non-surgical treatments, provide months of protection from pregnancy. And imagine that the equipment needed were already in physical therapists' offices around the world. Sound too good to be true? For years, scientists thought so too. But new research headed by Dr. James Tsuruta in the Department of Pediatrics at the University of North Carolina-Chapel Hill, published Monday in the journal Reproductive Biology and Endocrinology, is gaining the contraceptive method increased respect... (Source: Health News from Medical News Today)
Source: Health News from Medical News Today - February 1, 2012 Category: Consumer Health News Tags: Fertility Source Type: news
Early Cleaved Bovine Embryos Show Reduced Incidence of Chromosomal Aberrations and Higher Developmental Potential on Day 4.5 Post‐InseminationEmail this article to a colleague.
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ContentsThe present study aimed to investigate whether the timing of the first zygotic cleavage (FZC) influences the speed of embryo development expressed by the total cell count and the rate of chromosomally aberrant embryos. Bovine embryos were produced in vitro and divided into two categories according to the timing of FZC: early cleavers (at 30 hpi; EC) and non‐early cleavers (at 48 hpi; NEC). On day 4.5 pi, embryos were grouped into three classes depending on the number of blastomeres: delayed (<8 BL), normal (8–16 BL) and advanced (>16 BL). We applied fluorescence in situ hybridization (FISH) with pro...
Source: Reproduction in Domestic Animals - February 1, 2012 Category: Reproduction Medicine Authors: E Pers‐KamczycP PawlakJ RubesD Lechniak Source Type: research
Characterization of the mechanical properties of a new grade of ultra high molecular weight polyethylene and modeling with the viscoplasticity based on overstress.Email this article to a colleague.
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Abstract
Enhancements to the service life and performance of orthopedic implants used in total knee and hip replacement procedures can be achieved through optimization of design and the development of superior biocompatible polymeric materials. The introduction of a new or modified polymer must, naturally, be preceded by a rigorous testing program. This paper presents the assessment of the mechanical properties of a new filled grade of ultra high molecular weight polyethylene (UHMWPE) designated AOX(TM) and developed by DePuy Orthopaedics Inc. The deformation behavior was investigated through a series of tensile an...
Source: Journal of the Mechanical Behavior of Biomedical Materials - February 1, 2012 Category: Materials Science Authors: Khan F, Yeakle C, Gomaa S Tags: J Mech Behav Biomed Mater Source Type: research
Synform issue 2012/02Email this article to a colleague.
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Synlett 2012; 23: A10-A19DOI: 10.1055/s-0031-1289997© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation o...
Source: Synlett - February 1, 2012 Category: Chemistry Authors: Zanda, Matteo Tags: synform Source Type: research
Effects of (−)‐Epigallocatechin Gallate on the Motility and Penetrability of Frozen–Thawed Boar Spermatozoa Incubated in the Fertilization MediumEmail this article to a colleague.
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The objective of the present study was to examine the effects of EGCG during in vitro fertilization (IVF) on the sperm quality and penetrability into oocytes. In the first experiment, the effects of concentration and incubation period of EGCG on the motility and penetrability of spermatozoa were examined. When frozen–thawed spermatozoa were incubated in IVF medium supplemented with 0 (control), 1, 50 and 100 μm EGCG for 1, 3 and 5 h, supplementation with 50 and 100 μm EGCG improved motility of the spermatozoa (p < 0.05), but not viability, as compared with the control group. When frozen–thawed spermatozo...
Source: Reproduction in Domestic Animals - February 1, 2012 Category: Reproduction Medicine Authors: Y KaedeiM NaitoH NaoiY SatoM TaniguchiF TaniharaK KikuchiT NagaiT Otoi Source Type: research
The limits for detection of activated caspases of spermatozoa by western blot in human semenEmail this article to a colleague.
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SummaryDetection of activated caspases of spermatozoa could be helpful to evaluate male infertility. Although western blot is validated as a highly specific method to detect the proteins extracted from cells, the ability of this technique to detect activated sperm caspases in human semen may be limited. Indeed, round cells, which potentially contain some activated caspases, may be present in semen and interfere with the detection of activated sperm caspases. Moreover, it is necessary to evaluate the minimum amount of spermatozoa necessary to optimise the detection of activated caspases in semen samples. Our results showed ...
Source: Andrologia - February 1, 2012 Category: Urology & Nephrology Authors: F. BrugnonH. Pons‐RejrajiC. ArtonneL. JannyG. Grizard Tags: Original Article Source Type: research
Subfertile effects of quinestrol and levonorgestrel in male rats.Email this article to a colleague.
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Abstract
The contraceptive regimen consisting of levonorgestrel and quinestrol (EP-1) has been shown to be effective in several types of wild rodents. In the present study, we investigated the effect of EP-1 and its two components on fertility and spermatogenesis to elucidate the mechanisms underlying its contraceptive effect. Sprague-Dawley rats were treated with 0.33mgkg(-1) quinestrol (E group), 0.67mgkg(-1) levonorgestrel (P group) or their combination (EP group) for 7 days and then killed on Days 21 or 42 after treatment for tissue analysis. On Day 21, the weight of the cauda epididymis decreased significantly...
Source: Reproduction, Fertility, and Development - February 1, 2012 Category: Reproduction Medicine Authors: Liu M, Wan X, Yin Y, Li YX, Sun F, Zhang Z, Wang YL Tags: Reprod Fertil Dev Source Type: research
Inclusion of bovine lipoproteins and the vitamin E analogue, Trolox, during in vitro culture of bovine embryos changes both embryo and fetal development.Email this article to a colleague.
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In conclusion, the interactive effects of lipoprotein and Trolox inclusion on in vitro embryo development were also evident in fetal development at Day 70.
PMID: 22281076 [PubMed - in process] (Source: Reproduction, Fertility, and Development)
Source: Reproduction, Fertility, and Development - February 1, 2012 Category: Reproduction Medicine Authors: Rooke JA, Watt RG, Ashworth CJ, McEvoy TG Tags: Reprod Fertil Dev Source Type: research
Providing a diet containing only maintenance levels of energy and protein during the latter stages of pregnancy resulted in a prolonged delivery time during parturition in rats.Email this article to a colleague.
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Abstract
In mammals, a prolonged delivery time during parturition is dangerous for both mother and fetus, although the mechanisms that prolong delivery are unclear. To investigate whether nutrition affects delivery time, we administered two feeds containing maintenance (L-feed) or higher (H-feed) levels of energy and protein at different points during the latter half of pregnancy and compared the effects of the various treatments on delivery time in rats. After the rats had been maintained on the L-feed and then copulated on pro-oestrus (Day 0), pregnant females were randomly allocated to one of three groups: (1) t...
Source: Reproduction, Fertility, and Development - February 1, 2012 Category: Reproduction Medicine Authors: Tanaka Y, Kadokawa H Tags: Reprod Fertil Dev Source Type: research
Human spermatozoa vitrified in the absence of permeable cryoprotectants: birth of two healthy babies.Email this article to a colleague.
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Abstract
Herein, we report the birth of two healthy babies to a woman following intracytoplasmic sperm injection (ICSI) using motile spermatozoa vitrified without permeable cryoprotectants. Spermatozoa (in a case of oligoasthenoteratozoospermia) were cooled in cut standard straws in human tubal fluid supplemented with 0.5% human serum albumin and 0.25M sucrose. Sperm motility, capacitation-like changes, acrosome reaction and mitochondrial membrane potential (MMP) were compared in fresh and vitrified spermatozoa. Eight mature (MII) oocytes were microinjected with the vitrified-warmed motile spermatozoa. Although the...
Source: Reproduction, Fertility, and Development - February 1, 2012 Category: Reproduction Medicine Authors: Isachenko V, Isachenko E, Petrunkina AM, Sanchez R Tags: Reprod Fertil Dev Source Type: research
Granulosa cells are refractory to FSH action in individuals with a low antral follicle count.Email this article to a colleague.
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Abstract
The reason ovarian function and fertility are diminished in women with a low antral follicle count (AFC), despite significant numbers of follicles remaining in ovaries, is unknown. The bovine model is unique to address this question because cattle and women with a low AFC exhibit similar phenotypic characteristics including a diminished ovarian reserve, reduced circulating concentrations of anti-Müllerian hormone (AMH) but heightened FSH secretion during reproductive cycles. Because women and cattle with a low AFC respond minimally to gonadotropin stimulation during IVF cycles or superovulation, granulosa...
Source: Reproduction, Fertility, and Development - February 1, 2012 Category: Reproduction Medicine Authors: Scheetz D, Folger JK, Smith GW, Ireland JJ Tags: Reprod Fertil Dev Source Type: research
Xenogeneic and endogenous spermatogenesis following transplantation of rat germ cells into testes of immunocompetent mice.Email this article to a colleague.
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Abstract
Spermatogonial stem cells (SSCs) are the foundation of spermatogenesis, and are characterised by their ability to self-renew and to produce differentiated progeny that form spermatozoa. It has been demonstrated that rat spermatogenesis can occur in the seminiferous tubules of congenitally immunodeficient recipient mice after transplantation of rat SSCs. However, the testis is often viewed as an immune-privileged site in that autoimmunogenic antigens on germ cells do not normally elicit an immune response in situ. In the present study, we tried to transplant rat SSCs into immunocompetent mice after depletio...
Source: Reproduction, Fertility, and Development - February 1, 2012 Category: Reproduction Medicine Authors: Qu N, Naito M, Li J, Terayama H, Hirai S, Itoh M Tags: Reprod Fertil Dev Source Type: research
Differential glycolytic and glycogenogenic transduction pathways in male and female bovine embryos produced in vitro.Email this article to a colleague.
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Abstract
Previous studies have shown that developmental kinetic rates following IVF are lower in female than in male blastocysts and that this may be related to differences in glucose metabolism. In addition, an inhibition of phosphatidylinositol 3-kinase (PI3-K) inhibits glucose uptake in murine blastocysts. Therefore, the aim of this study was to identify and compare the expression of proteins involved in glucose metabolism (hexokinase-I, HK-I; phosphofructokinase-1, PFK-1; pyruvate kinase1/2, PK1/2; glyceraldehyde-3-phosphate dehydrogenase, GAPDH; glucose transporter-1, GLUT-1; and glycogen synthase kinase-3, GS...
Source: Reproduction, Fertility, and Development - February 1, 2012 Category: Reproduction Medicine Authors: Garcia-Herreros M, Aparicio IM, Rath D, Fair T, Lonergan P Tags: Reprod Fertil Dev Source Type: research
Booroola BMPR1B mutation alters early follicular development and oocyte ultrastructure in sheep.Email this article to a colleague.
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Abstract
Booroola ewes homozygous (BB) for a mutation in the bone morphogenetic protein receptor-1b (BMPR1B) gene exhibit higher ovulation rates, have larger diameter oocytes at earlier stages of follicular development (i.e. Type 3) and smaller diameter follicles at ovulation than wild-type (++) sheep. However, it is not known when BMPR1B is first expressed in the developing ovary or the cell types involved. In addition, the effects of the BMPR1B mutation on primordial (Type 1) follicles or during growth to the Type 3 stage are unknown. In the present study, BB and++fetal ovaries at Days 30-135 of gestation were sc...
Source: Reproduction, Fertility, and Development - February 1, 2012 Category: Reproduction Medicine Authors: Reader KL, Haydon LJ, Littlejohn RP, Juengel JL, McNatty KP Tags: Reprod Fertil Dev Source Type: research
