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Results 301 - 350 of 1244
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Funston R N - - 2011
Two hundred ninety-nine Angus-based, nulliparous heifers (253 ± 2 kg initial BW) from 3 production years were utilized to compare traditional postweaning dry lot (DL) development with a more extensive winter grazing system utilizing a combination of corn residue and winter range (EXT). Heifers developed in the DL were offered ...
Friedman E - - 2011
Reduced conception rate during the hot summer and subsequent autumn is a well-documented phenomenon. Evaporative cooling systems greatly increase milk production but only slightly improve reproductive performance; hence, additional approaches to improving fertility during the hot season are required. The purpose of the present study was to examine whether the ...
Norman Jane E JE Centre for Reproductive Biology, Queen's Medical Research Centre, University of Edinburgh, Edinburgh, United Kingdom. - - 2011
We aimed to investigate the effects of progesterone on gene expression and function of both myometrium and circulating leukocytes. We recruited women participating in a randomized clinical trial of progesterone to prevent preterm delivery. These participants had a twin pregnancy and were managed in 1 of 2 tertiary referral centers. ...
Weghofer Andrea - - 2011
BACKGROUND To determine whether women with extremely low-serum anti-Mullerian hormone (AMH) levels (<0.1-0.4 ng/ml) still demonstrate live birth potential with assisted reproduction and whether such potential is age dependent. METHODS Between January 2006 and October 2009, 128 consecutive infertility patients with AMH ≤0.4 ng/ml were retrospectively evaluated for pregnancy chances ...
Tartagni Massimo - - 2011
OBJECTIVE:: The aim of this study was to achieve pregnancy in a woman with premature ovarian insufficiency (POI) by means of estrogen pretreatment, a combination of estrogen therapy and gonadotropin ovarian stimulation, and intracytoplasmic sperm injection (ICSI). METHODS:: A 34-year-old woman with POI who failed to achieve follicular growth in ...
Palmer Kirsten - - 2011
The genetic deletion of catechol O-methyltransferase (COMT) in mice produces a preeclampsia-like phenotype, with mice exhibiting hypertension, proteinuria, and histological changes, consistent with human pathological features. 2-Methoxyoestradiol, a metabolite of COMT, increases human trophoblast invasiveness in vitro under hypoxic conditions, providing further support that decreased COMT expression may have a ...
Mastenbroek S - - 2011
Preimplantation genetic screening (PGS) has increasingly been used in the past decade. Here we present a systematic review and meta-analysis of RCTs on the effect of PGS on the probability of live birth after IVF. PubMed and trial registers were searched for RCTs on PGS. Trials were assessed following predetermined ...
Marquezini G H L - - 2011
Two experiments were conducted to evaluate whether human chorionic gonadotropin (hCG) administered 7 d before initiating the CO-Synch + controlled internal drug release (CIDR) ovulation synchronization protocol (Exp. 1 and 2), or replacing GnRH with hCG at the time of AI (Exp. 1), would improve fertility to a fixed-time AI ...
Hild S - - 2011
The aim of the experiment was to study the effects of aversive vs. gentle handling in late pregnancy on maternal behavior of ewes. Sixteen Norwegian Dala ewes bearing twins were subjected to 10min of either gentle (GEN - soft talking and calm behavior) or aversive (AVS - swift movements and ...
Yamasaki J - - 2011
Protocols for cryopreservation of monkey embryos are not well established. The objective of the current study was to determine the efficacy of the polypropylene strip method for cryopreserving cynomolgus monkey embryos. Cynomolgus monkey embryos, 63 and 56 at the 4- to 8-cell and 56 blastocyst stages, respectively, were produced by ...
Lamont Ronald F - - 2011
Listeria is commonly found in processed and prepared foods and listeriosis is associated with high morbidity and mortality. Preventative measures are well prescribed and monitoring and voluntary recall of contaminated products has resulted in a 44% reduction in the prevalence of perinatal listeriosis in the USA. Pregnant women are at ...
Dahlen C R - - 2011
We determined the effects of hCG on ovarian response, concentration of progesterone, and fertility in a fixed-timed AI (TAI) protocol. Four hundred and forty-four crossbred beef heifers were synchronized with the CO-Synch + CIDR (controlled internal drug-releasing insert) protocol. In addition, heifers were randomly assigned to 1 of 4 treatments ...
Maher Mohamed Ahmed - - 2011
OBJECTIVES: To determine the impact of luteal phase support with vaginal progesterone on pregnancy outcomes in infertile couples undergoing intrauterine insemination when recombinant follicle-stimulating hormone was used for ovulation induction. STUDY DESIGN: This prospective randomized study was undertaken at the Infertility Unit, Armed Forces Hospital Southern Region, Kingdom of Saudi ...
Makedou Kali - - 2011
The aim of the present study was to investigate whether normal pregnancy represents a complex state of oxidative stress, inflammation and insulin resistance. One hundred and six pregnant women, between 24th and 28th week of pregnancy (age 27.9 ± 0.4 years) (study group) and one hundred and six age-matched, healthy, ...
Hattori Hiromitsu - - 2011
OBJECTIVE: To describe the delivery of a healthy female infant after intracytoplasmic sperm injection (ICSI) using pentoxifylline-activated sperm from a patient with Kartagener's syndrome. DESIGN: Case report. SETTING: Private assisted reproductive technology clinic in Japan. PATIENT(S): A couple with male factor infertility due to Kartagener's syndrome. INTERVENTION(S): Intracytoplasmic sperm injection ...
Tomic Vlatka - - 2011
The aim of the present study was to compare the efficacy and satisfaction rate of combined therapy of oral micronized progesterone capsules and vaginal progesterone gel versus monotherapy with vaginal progesterone gel in luteal support. A case-control study was performed on a total number of 370 women aged <45 years undergoing ...
Silasi Michelle - - 2011
OBJECTIVE: Increased levels of soluble fms-like tyrosine kinase (sFlt-1) in Trisomy 13 pregnancies are thought to be mediated by the placenta. This study aimed to compare sFlt-1 expression in Trisomy 13 (n = 7) placentas with that in control placentas (Trisomy 21, n = 11, and euploid, n = 6). ...
Dilbaz Serdar - - 2011
Objective. To compare the efficacy on the cycle performance of 375 versus 450 IU/day gonadotrophin on the microdose flare-up protocol in poor responders. Study design. A total of 91 poor responder patients who were treated with the microdose flare-up protocol were enrolled in this study. Group 1 (n = 40) was stimulated with 375 ...
Sarig Galit - - 2011
INTRODUCTION: Amniotic fluid (AF) is an important medium for fetal development which exhibits high procoagulant activities; however, the role of these procoagulants during pregnancy has not been elucidated and might be associated with pregnancy complications. The current study aimed to evaluate factor X (FX) activation and its association with tissue ...
Fernández-Alonso Ana M - - 2011
Background. Vitamin D has been implicated in embryo/placental development and growth; however information in this regard is limited or unavailable. Objective. To assess 25-hydroxyvitamin D (25(OH)D), free β-human chorionic gonadotropin (β-hCG) and pregnancy associated plasma protein A (PAPP-A) status during pregnancy. Methods. Serum 25(OH)D, β-hCG, and PAPP-A levels were measured in the first ...
Ata Baris - - 2011
The aim of this retrospective study was to compare the oocyte yield with the luteal estradiol patch (LPA) - GnRH antagonist and microdose (MD) flare-up protocols in anticipated poor responders. Fifty-seven women who underwent IVF treatment following stimulation with LPA or MD protocols at McGill Reproductive Centre were matched for ...
Mirochnick Mark - - 2011
Few data are available describing atazanavir exposure during pregnancy, especially when used in combination with tenofovir, whose coadministration with atazanavir results in decreased atazanavir exposure. International Maternal Pediatric Adolescent AIDS Clinical Trials 1026 s is an ongoing, prospective, nonblinded study of antiretroviral pharmacokinetics in HIV-infected pregnant women that included 2 ...
Sá Filho M F - - 2011
The objective was to evaluate the effect of estrus occurrence (based on removal of tail-head marks) on ovarian responses and pregnancy per AI (P/AI; 30 d after AI) in suckled Bos indicus beef cows submitted to timed AI (TAI) protocols. Cows received an intravaginal device containing 1.0 g progesterone, and ...
Atli Mehmet Osman - - 2011
WNT signaling pathway plays important roles in reproductive events. Aims were to (1) determine presence of WNT genes and their antagonists in equine endometrium; and (2) to evaluate their expression profiles during early pregnancy. Endometrial biopsies were obtained from mares on day of ovulation (d0, n=4) and on days of ...
Lopes-da-Costa L - - 2011
The objectives of this study were to evaluate embryonic size and survival, plasma progesterone (P4) and pregnancy-specific protein bovine (PSPB) concentrations in early pregnancies (n = 99) following the transfer of one whole (n = 66) or one demi (n = 33) embryo to recipient virgin dairy heifers. The experiment ...
Salbaum J M JM Laboratory of Regulation of Gene Expression, Pennington Biomedical Research Center, Baton Rouge, LA, - - 2011
Pregnancies complicated by diabetes have a higher risk of adverse outcomes for mothers and children, including predisposition to disease later in life, e.g. metabolic syndrome and hypertension. We hypothesised that adverse outcomes from diabetic pregnancies may be linked to compromised placental function, and sought to identify cellular and molecular abnormalities ...
Ranjkesh Fatemeh - - 2011
Preeclampsia is an important cause of maternal and perinatal mortality worldwide. The etiology of this relatively common medical complication of pregnancy, however, remains unknown. The aim of this study was to compare the copper concentrations in serum and urine samples of preeclamptic and normotensive pregnant women to establish the possible ...
Stepan Holger H University of Leipzig, Department of Obstetrics, - - 2011
Preeclampsia is a serious cardiovascular complication in pregnancy which is associated with an increased future metabolic and cardiovascular risk for mother and newborn. Recently, chemerin was introduced as a novel adipokine inducing insulin resistance in vitro and in vivo. In the current study, we investigated serum concentrations of chemerin by ...
Ranta Jenni K - - 2011
OBJECTIVE: To investigate links between first trimester Down's syndrome screening markers and adverse pregnancy outcomes; preeclampsia (PE), small for gestational age (SGA), preterm delivery (PD) and placental abruption (PA) in spontaneous, chromosomally normal pregnancies. STUDY DESIGN: Cohort study in a university hospital. Data during pregnancy were routinely collected from a ...
Frew Lorraine - - 2011
Antimicrobial peptides are small proteins produced by epithelial surfaces and inflammatory cells which have broad spectrum antimicrobial and immunomodulatory activities. They are known to be important in a number of infectious and inflammatory conditions and have been shown to be present in a number of sites throughout the female reproductive ...
Kourtis Anargyros - - 2011
Objective:  Apelin is an adipokine secreted from adipose and other tissues with increased expression in obesity, role in glucose metabolism and atherosclerosis, as well as in oxidative stress. Pregnancy is considered a state of hyperlipidemia, oxidative stress and decreased insulin sensitivity. The aim of the present study is to investigate ...
Tsubouchi Hiroaki - - 2011
Aim:  The aim of the present study was to show changes in salivary cortisol and chromogranin A/protein concentrations as stress markers during pregnancy and to clarify the effect of chronic stress on stress markers. Material and Methods:  Salivary samples were collected from 69 pregnant women during pregnancy. Salivary cortisol levels ...
Lã Filipa Martins Baptista - - 2012
Significant changes in body tissues occur during pregnancy; however, literature concerning the effects of pregnancy on the voice is sparse, especially concerning the professional classically trained voice. Hormonal variations and associated bodily changes during pregnancy affect phonatory conditions, such as vocal fold motility and glottal adduction. Longitudinal case study with ...
Akan Erkan - - 2011
Abstract Background: The present study aims to determine the predictive power of activin A levels in the prognosis of first trimester pregnancies conceived by in vitro fertilization (IVF). Methods: The study cohort included 23 biochemical, and 23 normal ongoing pregnancies conceived via IVF. Serum β-human chorionic gonadotropin (β-hCG), progesterone, and ...
Lipe Brea C - - 2011
Because von Willebrand factor (VWF) levels increase during pregnancy, many women with VWD, though not requiring support with hemostatic agents, are at increased risk for delayed postpartum hemorrhage as coagulation factor levels fall to their prepregnancy levels in the puerperium. Women with moderate or severe disease or complicated pregnancies are ...
Keskin A - - 2011
The Ovsynch protocol was designed to synchronize ovulation, thereby allowing timed artificial insemination (TAI) of all cows without detection of estrus. However, the effectiveness of Ovsynch in different breeds of dairy cows has not been previously compared. The aim of this study was to compare the response to Ovsynch in ...
Skidmore J A - - 2011
The aim of the present study was to investigate the use of exogenous progesterone and equine chorionic gonadotrophin (eCG) in non-ovulated and ovulated, asynchronous dromedary camel recipients being prepared for an embryo transfer programme. The uteri of 12 mated donor camels were flushed non-surgically 7 days after ovulation and 42 ...
Ncube Hlengisizwe - - 2011
Regulative endocrine mechanisms influence the reproductive behaviour and success of mammals, but they have been studied predominantly in domestic and captive animals. The study aims at describing the pattern of faecal 20-oxopregnane and oestrogen concentrations during pregnancy in wild plains zebra Equus quagga chapmani. Data were collected during wet and ...
Raz T - - 2011
Background  Induction of multiple ovulations, or superovulation, may potentially increase the efficiency of equine embryo transfer programs. Our objective was to investigate the effects of equine follicle-stimulating hormone (eFSH) treatment on the success rate of embryo transfer programs in mares. Methods  In the research facility of the University of Saskatchewan, ...
El-Gharib Mohamed Nabih - - 2011
Objective. To evaluate the use of late first trimester maternal serum inhibin-A concentrations in prediction of preeclampsia. Design. Prospective study. Setting. Tanta University Hospital. Methods. All cases (327) were subjected to complete history taking, clinical and ultrasound examination, CBC, liver function tests, estimation of 24 h urine protein and venous blood samples were taken during ...
Signorelli P - - 2011
Autophagy is an inducible catabolic process that responds to environment and is essential for cell survival during stress, starvation and hypoxia. Its function in the human placenta it is not yet understood. We collected 14 placentas: 7 at vaginal delivery and 7 at elective caesarean section after uneventful term pregnancies. ...
Wong J Yy - - 2011
OBJECTIVE. To evaluate and compare the laboratory and clinical outcomes of vitrification with slow-freezing method for cryopreservation of embryos and blastocysts in an in-vitro fertilisation programme. DESIGN. Retrospective analysis of all the 104 cycles of frozen embryo and blastocyst replacements from 2003 to 2008 and all the 149 cycles with ...
Skowronski Mariusz T - - 2011
Thirteen mammalian aquaporin (AQPs) isoforms with a unique tissue-specific pattern of expression have been identified. To date, 11 isoforms of AQP have been reported to be expressed in female and male reproductive systems. The purpose of our study was to determine the localization and quantitative changes in the expression of ...
Gu Longjie - - 2011
To report the outcome of intracytoplasmic sperm injection (ICSI) cycles of an oligozoospermic man with reciprocal translocation. Two ICSI cycles were given to a 29-year-old man with severe oligozoospermia and reciprocal translocation t(18;21)(p11;q21) and his wife. In the first cycle, no sperm were found in his semen and all 15 ...
LaMarca Babbette B Department of Physiology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216-4505, - - 2011
Despite being one of the leading causes of maternal death and a major contributor of maternal and perinatal morbidity, the mechanisms responsible for the pathogenesis of preeclampsia are unclear. One important initiating event in preeclampsia is thought to be reduced placental perfusion leading to the production of a variety of ...
Abdellah Mohamad S - - 2011
OBJECTIVE: To compare the clinical outcomes of letrozole and laparoscopic ovarian drilling (LOD) in patients with clomiphene-citrate-resistant polycystic ovary syndrome (PCOS). METHODS: In the present prospective randomized trial, 140 women with clomiphene-citrate-resistant PCOS were randomly allocated to receive 5mg letrozole from day 3 to day 7 of menses for 6 ...
Wang Hui-Li - - 2011
Abstract The removal of chromosomes from recipient oocytes is one of the key steps in nuclear transfer cloning. Although microtubule interrupters have been successfully used for oocyte enucleation, their potential side effect on oocyte developmental potential should be considered, and less harmful drugs should be explored for chemical-assisted enucleation. Based ...
Brandes M - - 2011
In this longitudinal multicentre cohort study, the overall ongoing pregnancy rate after current evidence-based management in male subfertility was studied. All subfertile couples who visited the fertility clinic for the first time between 2002 and 2006, and had male subfertility as a single diagnosis (n = 762 of 2476 couples), were included ...
Sert Tuba - - 2011
Background: The aim of this study was the evaluation of the levels of serum interleukin (IL) 1-beta (IL-1β), IL-6, IL-10, tumor necrosis factor-alpha (TNF-α), vascular endothelial growth factor (VEGF), placental growth factor (PIGF), and soluble VEGF receptor (sVEGFR)-1 and sVEGFR-2 in the association between periodontal disease and adverse pregnancy outcomes. ...
Xing Xiuye - - 2011
OBJECTIVE: To describe a case with repeated total fertilization failure due to oocyte defect. DESIGN: Case report. SETTING: University hospital. PATIENT(S): A patient with repeated total fertilization failure. INTERVENTION(S): Assisted oocyte activation, intracytoplasmic sperm injection (ICSI) with calcium ionophore oocyte activation, donor semen, and donor oocytes. MAIN OUTCOME MEASURE(S): Fertilization, ...
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