background: in spite of the great progress in assisted reproductive techniques ( art) and although good quality embryos are transferred pregnancy rates have remained around 30%-35% due to low implantation rates. objective: the aim of this study was to assess and compare the effects of administrating indomethacin or hyoscine suppositories prior to embryo transfer on the pregnancy rate in art cyc...

Background: Survival of the conceptus is dependent on continuous progesterone signaling in the maternal decidua but how this is achieved under conditions of oxidative stress that characterize early pregnancy is unknown. Materials and Methods: Laboratory-based analysis of endometrial biopsies and primary endometrial cultures. Results: Using primary cultures, we show that modest levels of reactiv...

The objective was to evaluate the effects of pregnancy and bovine somatotropin (bST) on endometrial gene and protein expression related to maintenance of pregnancy in nonlactating dairy cows at d 17. In endometrial tissues, treatment with bST increased the steady state concentration of oxytocin receptor (OTR) mRNA; bST-treated cyclic (bST-C) cows had greater OTR mRNA than bST-treated pregnant (...

OBJECTIVE To examine the relationship of early human embryonic development parameters to day 3 reactive oxygen species (D-3 ROS) levels in culture media. DESIGN Prospective study. SETTING Tertiary care hospital. PATIENT(S) Patients were undergoing IVF (n=92; 36 with intracytoplasmic sperm injection [ICSI]). INTERVENTION(S) The D-3 ROS levels in sample and control of each embryo culture ...

Background. Although the optimal outcome of assisted reproductive technology (ART) is a healthy singleton pregnancy, the rate of twin gestation from ART in women over the age of 35 is persistently high. Methods/Findings. We compared clinical pregnancy rates (PRs), ongoing pregnancy/live birth rates, and multiple gestation rates (MGRs) in 108 women who chose elective single blastocyst transfer (...

BACKGROUND Dropouts in IVF-programmes affect cumulative pregnancy rates (CPRs), but it is unknown what the impact of loss to follow-up is. METHODS Data were obtained from 588 couples starting IVF treatment ('as treated group'). Cycle-based and real-time-based CPRs were calculated using three assumptions for dropouts: dropouts having no probability of pregnancy, dropouts having the same probab...

BACKGROUND Increased growth of meningiomas during pregnancy as well as postpartum clinical regression of symptoms have been reported but remain poorly understood. A better understanding of the factors that contribute to these observations, including potential factors associated with pregnancy, could enable design of more effective adjuvant therapies. METHODS We describe the presentation of a ...

Fertility data collected on 17131 Holstein-Friesian cows from 158 dairy herds in Australia were used to estimate heritabilities for and correlations among several fertility traits using a sire model. Pregnancy rate (PR), survival (Surv), calving interval (CI), calving to first service interval (CFS), insemination rate (coded as 1 if a cow received a service or 0 otherwise) (InsemR) and first se...

Aim: The present study was aimed at finding out the age specific best protocol for ovarian stimulation, particularly for advanced age group. Materials and Methods: This retrospective analysis was carried out from July 2005 to June 2009 in 617 cycles of In-vitro Fertilization (IVF) in different age group patients, performed at our centre. 617 patients having indications for female factor inferti...

Objective: To evaluate the outcome of repeated TESE/ICSI, in patients with non-obstructive azoospermia, to collect sufficient information for adequate counseling of the patients. Design: Retrospective study Setting: The Egyptian IVF-ET center Materials and Methods: 41 patients suffering from non-obstructive azoospermia underwent 59 repeated TESE/ICSI cycles. All of the patients had repeated TES...