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Kuijper Bram B Environment and Sustainability Institute, University of Exeter, Penryn, United Kingdom; Behaviour and Evolution Group, Department of Zoology, University of Cambridge, Cambridge, United Kingdom; CoMPLEX, Centre for Mathematics and Physics in the Life Sciences and Experimental Biology, University College London, London, United Kingdom; Department of Genetics, Evolution and Environment, University College London, London, United - - 2014
There is a growing interest in predicting the social and ecological contexts that favor the evolution of maternal effects. Most predictions focus, however, on maternal effects that affect only a single character, whereas the evolution of maternal effects is poorly understood in the presence of suites of interacting traits. To ...
Brown Z A ZA The Generation R Study Group, Erasmus Medical Centre, Rotterdam, The Netherlands; Department of Obstetrics and Gynecology, Erasmus Medical Centre, Rotterdam, The Netherlands. Electronic address: - - 2014
Our objective was to assess fetal sex specific differences in first trimester placental biomarkers of both physiological and pathological pregnancies and their interaction with environmental influences. This study is embedded in the Generation R Study, a prospective cohort study. Only live singleton births were included. Linear regression was performed to ...
Mukai Yuuka Y Department of Nutrition, Faculty of Health Sciences, Aomori University of Health and Welfare, Mase 58-1, Hamadate, Aomori, 030-8505, - - 2014
Dietary fructose ingestion during gestation affects carbohydrate metabolism in the offspring. We investigated the effects of excess fructose intake during pregnancy on hepatic and hypothalamic AMP-activated kinase (AMPK) expression and phosphorylation as well as hepatic glucose-6-phosphatase (G6Pase) activity in offspring. Pregnant Wistar rats received normal chow and 100 g/L of ...
Wei Zeng-Tao ZT Department of Obstetrics and Gynecology, Jinan Central Hospital Affiliated to Shandong University, 105 Jiefang Road, Jinan, China, - - 2014
To evaluate the long-term effects of superovulation on fertility and sexual behavior of male offspring in mice. The mice were superovaluted, and the fertility of male offspring (F1 generation and F2 generation) were evaluated in terms of the percentage of plugs and pregnancies, serum testosterone concentrations, and sperm motility. Furthermore, ...
Wong Kai Mee KM Center for Reproductive Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The - - 2014
In in vitro fertilization (IVF), the selection of embryos for transfer is generally based on the morphology of the available embryos. However, not all embryos with good morphology implant and on average only one in four treatments are successful. This has driven a quest for alternative selection methods. The best ...
Nakić Radoš Sandra S a Department of Obstetrics & Gynecology , University Hospital Center Sisters of Mercy , Zagreb , - - 2014
Abstract The aim of this study was to examine changes in some aspects of sexuality (sexual desire, frequency, and satisfaction) in expecting fathers, and to determine predictors of sexual satisfaction. This cross-sectional study was conducted with a sample of 105 men whose partners were in the third trimester of pregnancy. ...
Aurich Christine C Centre for Artificial Insemination and Embryo Transfer, Vetmeduni Vienna, Vienna, Austria. Electronic address: - - 2014
In the equine species, sex determination of the conceptus is of growing interest for the breeding industry. In horses, the sex ratio of the offspring depends on changes in body condition of the mother at conception and under natural conditions may thus markedly deviate from an expected 1:1 ratio. Insemination ...
Rahimi Amir Abbas AA Molecular Medicine Department, Pasteur Institute of Iran, Tehran, - - 2014
Objective(s): To determine the fetal discernment in suspected cases of sex linked recessive disease in the first trimester of pregnancy. Materials and Methods: After collection of 100 Chorionic Villi samples, the DNAs were extracted and baby gender was determined. Meanwhile, after increasing the sensitivity, the system was able to detect ...
Sun Xiaofei X *Division of Reproductive Sciences, Perinatal Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, - - 2014
Leucine-rich repeat-containing G-protein-coupled receptor 5 (Lgr5) is expressed in many organs, including female reproductive organs, and is a stem cell marker in the stomach and intestinal epithelium, hair follicles, and ovarian surface epithelium. Despite ongoing studies, the definitive physiological functions of Lgr5 remain unclear. We utilized mice with conditional deletion ...
Warner Daniel A DA Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, Iowa 50011; 2Department of Zoology, Oklahoma State University, Stillwater, Oklahoma - - 2014
Abstract Environmental conditions that reproductive females experience can influence patterns of offspring provisioning and fitness. In particular, prey availability can influence maternal reproduction and, in turn, affect the viability of their offspring. Although such maternal effects are widespread, the mechanisms by which these effects operate are poorly understood. We manipulated ...
Painer Johanna J Department Reproduction Management and Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Forschungsverbund Berlin e.V., Berlin, - - 2014
Felids generally follow a poly-estrous reproductive strategy. Eurasian lynx (Lynx lynx) display a different pattern of reproductive cyclicity where physiologically persistent corpora lutea (CLs) induce a mono-estrous condition which results in highly seasonal reproduction. The present study was based around a sono-morphological and endocrine study of captive Eurasian lynx, and ...
Archunan G - - 2014
The chemosignals from mating male are found to be responsible for protecting his coital partner against pregnancy failure induced by strange male or food-deprivation. The stud male pheromone not only provides luteotrophic support in female of vulnerable condition but also exerts luteotrophic effect in pregnancy-blocked females by inducing pseudopregnancy. The ...
Weissgerber Tracey L TL Magee-Womens Research Institute, Department of Obstetrics, Gynecology and Reproductive Science, University of Pittsburgh, Pittsburgh, - - 2013
Abstract Objective: The anti-oxidant and proangiogenic protein haptoglobin (Hp) is believed to be important for implantation and pregnancy, although its specific role is not known. The three phenotypes (1-1, 2-1 and 2-2) differ in structure and function. Hp 2-2 is associated with increased vascular stiffness in other populations. We examined ...
Panarace M M GOYAIKE S. A. A. C. I. y F., Biotechnology Area. Ea San Joaquín CC (37), Carmen de Areco, Buenos Aires, Rep. Argentina. Electronic address: - - 2013
Flow cytometry sex-sorting technology was developed in 1989. However, it is only the bovine species in which offspring of the desired sex are obtained at a commercial level. The aim of the present work was to evaluate efficiency parameters when using fresh sexed semen in a large-scale equine commercial embryo ...
Resende H L - - 2013
The identification of fetal sex in horses by location of the genital tubercle between 55 and 70 days of pregnancy is hampered by the large amount of allantoic fluid, extensive fetal movements and the extremely long umbilical cord; alternatively, reliable results have been achieved by ultrasonographic evaluation of the fetal ...
Sárria Marisa P - - 2013
Endocrine disrupting chemicals (EDCs) have been reported to disturb several ecological relevant endpoints. Surprisingly, EDC-induced effects on fish sexual behaviour have been poorly studied despite the fact that even subtle alterations might contribute to a disruption of sexual interactions, thus negatively impacting reproduction. As the few assessments on sexual behaviour ...
Yıldız Hatice H a Faculty of Health Sciences, Nursing Department, Division of Obstetrics and Gynecology Nursing , Marmara University , Istanbul , - - 2013
This study examined the relation between sexual functions of women in prepregnancy (before conception) and during pregnancy and the postpartum period. This study was conducted on 59 healthy pregnant women. Participants were followed from the eighth week of gestation to 6 months after delivery. Sexual function during pregnancy and the ...
Foumane Pascal - - 2013
Abstract Objective Our aim was to assess the effects of sexual activity during pregnancy on the prognosis of labor. Methods It was a prospective cohort study of labor comparing 72 women declaring unprotected vaginal sexual intercourse after 37 weeks of pregnancy consecutively recruited to 72 women claiming no sexual contact ...
Mehta Akanksha - - 2014
State-of-the-art techniques attempt to select sperm with the best functional capacity to produce pregnancy and, subsequently, healthy offspring. A variety of approaches are now being evaluated. Future approaches may allow for selection of sperm based on sperm DNA integrity, degree of aneuploidy, or apoptosis. Other approaches involve attempting to improve ...
Daly Irenee - - 2013
The population attempting pregnancy and having babies is ageing. Gynaecological and obstetric complications worsen with age. Maternity services are struggling. Increasing rates of infertility and complications are not matched by the marvels in the laboratory. This paper argues that assisted reproduction treatment has had a damaging social impact. Despite its ...
Setti A S - - 2013
To evaluate advanced maternal age as a rationale for performing intracytoplasmic morphologically selected sperm injection (IMSI). This study included couples undergoing intracytoplasmic sperm injection (ICSI) as a result of advanced maternal age (≥37 years old). Sample size calculations were based on the assumption that a 15% difference in implantation rate ...
Braude Peter - - 2013
This review considers why and how embryos are selected for transfer and with what consequences. It concludes that: (i) current selection methods are inadequate or at least inadequately subjected to evidential scrutiny; (ii) decisions about number of embryos should be based not solely on input (numbers transferred) but on the ...
McGowan James G - - 2013
Unintended pregnancy is a global sexual health problem. Outcomes of unintended pregnancy include unwanted childbirth and abortion, which may be associated with negative physical and psychosocial health implications for women. In Scotland, the Scottish Sexual Health Strategy has the stated goal of improving the sexual health of the people of ...
Knott Katrina K - - 2013
Declining numbers of wild giant anteaters highlight the importance of sustainable captive populations. However, captive reproductive management is limited by the lack of external physical indicators of female reproductive status and the aggressive behavior of males. We examined the endocrinology of the estrous cycle and pregnancy, and whether delayed implantation ...
O'Connell B A - - 2013
Elevated maternal glucocorticoids during human pregnancy suppress fetal growth, more so if the fetus is male. The synthetic glucocorticoid dexamethasone (DEX) is known to affect placental glucose transport, but whether this also affects placental glycogen stores has not been investigated. We examined the short and long term consequences of a ...
Gale T - - 2013
In mammals, allocation to reproduction can either be primed or suppressed in relation to cues from other individuals. Some conspecifics (e.g. potential mates) may enhance an individual's ability to reproduce but others may have a detrimental effect on reproductive success. One widely studied response to conspecific cues, the 'Bruce effect', ...
Mayor P - - 2013
Functional morphology of the genital organs is a key knowledge component for enhanced understanding of physiological patterns and for the determination of the reproductive performance in wild species. This study examines the morphology of genital organs of 133 paca females in the wild. Estimated conceptions and parturitions were mostly (83.7% ...
Yeniel A O - - 2013
Data on the effect of pregnancy and mode of delivery on postpartum sexual function are very heterogenic and inconclusive. The aim of this review is to examine the current literature for reliable data on the role of pregnancy and the route of delivery on sexual health and different dysfunctions. A ...
Charlton Ms Brittany M - - 2013
To examine whether sexual orientation is associated with disparities in teen pregnancy and hormonal contraception use among adolescent females in two intergenerational cohorts. Data were collected from 91,003 women in the Nurses' Health Study II (NHSII), born between 1947-1964, and 6,463 of their children, born between 1982-1987, enrolled in the ...
Miñambres Inka - - 2013
Background: Sex ratio at birth (male out of total alive newborns) is historically established at 0.515 and is influenced by numerous factors. It is not known, however, whether it is different in maternal thyroid conditions. Our aim was to analyze its association with maternal thyroid autoimmunity and first trimester TSH. ...
McCleary-Sills Jennifer - - 2013
Adolescent pregnancy places girls at increased risk for poor health and educational outcomes that limit livelihood options, economic independence, and empowerment in adulthood. In Tanzania, adolescent pregnancy remains a significant concern, with over half of all first births occurring before women reach the age of 20. A participatory research and ...
Tse W C - - 2013
OBJECTIVES. To identify factors affecting the sex ratio at birth. DESIGN. Cross-sectional study. SETTING. Obstetric department of a public hospital in Hong Kong. PARTICIPANTS. All pregnant women delivered between 2001 and 2010. MAIN OUTCOME MEASURES. Sex ratio at birth versus women's eligibility status, age, parity, number of miscarriages or terminations ...
Ophir Alexander G - - 2013
During pregnancy, females undergo several physiologically driven changes that facilitate adaptive behaviours and prepare the mother to care for her developing offspring. The nonapeptide hormone oxytocin is best recognised for its involvement in mammalian pregnancy and has been tightly associated with maternal care, in addition to its roles in pregnancy, ...
Sánchez-Martín Pascual - - 2013
This study was conducted to test the hypothesis that continuous epididymal sperm depletion after recurrent ejaculations (REC) in contrast to a period of abstinence (ABS) results in a decreased level of sperm DNA fragmentation (SDF) and a consequent increased rate of pregnancy. Forty couples undergoing intra-cytoplasmic injection (ICSI) were asked ...
Schlabritz-Loutsevitch N N Department of Obstetrics and Gynecology, University of Tennessee Health Science Center, Memphis, TN, USA. - - 2013
Abruptio placentae is a serious problem with a high rate of maternal and fetal mortality and documented sexual dimorphism in reoccurrence. Macaca fascicularis is a well-described reproductive model; however, there are no data available regarding sexual dimorphism in abruptio placentae in these species. A retrospective study of pathology and medical ...
van Mens T E - - 2013
Factor V Leiden is a procoagulant mutation associated with venous and arterial thrombosis and pregnancy complications. Its high prevalence of 5% in Caucasians suggests that there are evolutionary benefits as well. Carriers are indeed reported to have various advantageous phenotypes related to haemostasis, inflammation and fertility: less acute blood loss; ...
Brown Elizabeth A - - 2013
When considering selective forces shaping human evolution, the importance of pregnancy to fitness should not be underestimated. Although specific mortality factors may only impact upon a fraction of the population, birth is a funnel through which all individuals must pass. Human pregnancy places exceptional energetic, physical, and immunological demands on ...
Zou Yuliang - - 2013
ABSTRACT Objectives To compare risky sexual behaviour and risk factors associated with unwanted pregnancy and sexually transmitted infections (STIs) among female fine arts undergraduates and students of other disciplines in China. Method Anonymously completed questionnaires were received from 4769 unmarried female undergraduates, recruited using randomised cluster sampling. Multiple regression analyses ...
Finer Lawrence B - - 2013
OBJECTIVE:To present new data on sexual initiation, contraceptive use, and pregnancy among US adolescents aged 10 to 19, and to compare the youngest adolescents' behaviors with those of older adolescents.METHODS:Using nationally representative data from several rounds of the National Survey of Family Growth, we performed event history (ie, survival) analyses ...
Manokhina I - - 2013
Maternal effect genes control early events of embryogenesis. Maternal homozygous and compound mutations in two such genes, NLRP7 and c6orf221, have been detected in the majority of women experiencing recurrent biparental hydatidiform moles. It was suggested that other forms of reproductive wastage, including diploid androgenetic moles, partial moles, polyploidy, recurrent ...
Howell-Stephens J - - 2013
Understanding the basic reproductive biology and limitations to successful breeding of the southern three-banded armadillo (Tolypeutes matacus) is necessary to maintain viable zoo populations. Our objectives were to: 1) describe the reproductive biology using non-invasive, fecal hormone analysis; 2) assess influence of season on gonadal hormonal patterns in both the ...
Henry Malinda D - - 2013
Across taxa, cooperative breeding has been associated with high reproductive skew. Cooperatively breeding golden lion tamarins (Leontopithecus rosalia) were long thought to have a monogynous mating system in which reproduction was limited to a single dominant female. Subordinates with few reproductive opportunities delayed dispersal and remained in the natal group ...
Mayor Pedro - - 2013
Functional morphology may provide important information that could improve methodologies for the diagnosis of the reproductive phase of females, and develop assisted breeding techniques for wildlife. This study examined features of genital organs in 19 Peruvian red uakari monkey (Cacajao calvus ucayalii) females in different reproductive stages, collected from wild ...
Kadivar Ali - - 2013
Prediction of fetal sex in the ovine species could be useful in the management decisions, such as sex selection in breeding programs, culling decisions, and lowering the progeny test cost. In the present study detection of fetal SRY gene in maternal blood plasma using the polymerase chain reaction technique was ...
Yeh Judy - - 2013
: Heterotopic abdominal pregnancies with coexisting intrauterine pregnancies pose unique therapeutic challenges, and management options, particularly nonsurgical approaches, are limited. : We present a case in which selective reduction of a heterotopic abdominal pregnancy during the second trimester using fetal intracardiac injection with potassium chloride enabled subsequent vaginal delivery of ...
Bates G Wright - - 2013
The female reproductive system contains two principal components: the uterus, which supports the developing fetus, and the ovaries, which produce the female gametes. This manuscript will review how the hypothalamus, pituitary, ovary and uterus are integrated into the female reproductive system. The endocrinology of pregnancy, as well as a cursory ...
Zhou Yuanzhong - - 2013
Status of premarital sex, unintended pregnancy and associated factors among Chinese graduate students remain unclear. And unmarried graduate students' needs of family planning services seem to be ignored. In the present study, we ascertained the prevalence rate of premarital sex and unintended pregnancy, as well as estimated the possible factors ...
Hollegaard Birgitte - - 2013
Preeclampsia is a major cause of perinatal mortality and disease affecting 5-10% of all pregnancies worldwide, but its etiology remains poorly understood despite considerable research effort. Parent-offspring conflict theory suggests that such hypertensive disorders of pregnancy may have evolved through the ability of fetal genes to increase maternal blood pressure ...
Check J H - - 2013
To determine if isolation of sperm by nuclear characteristics using high magnification offers any advantage over the normal morphologic methods when performing intracytoplasmic sperm injection (ICSI) in refractory cases in which the male partner had an abnormal DNA fragmentation index. Women aged < or = 39 with failure to have ...
Matthews Gillian A - - 2013
Exposure to chemosensory signals from unfamiliar males can terminate pregnancy in recently mated female mice. The number of tyrosine hydroxylase-positive neurons in the main olfactory bulb has been found to increase following mating and has been implicated in preventing male-induced pregnancy block during the post-implantation period. In contrast, pre-implantation pregnancy ...
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