overall, 531 dairy cows were inseminated with the aim to study their reproductive performance following administration of gnrh analogue on different days of estrous cycle with different doses. these cows were divided into six treatment and one control group. depending upon different treatment groups, buserelin acetate was injected at a dose of 10.5 µg or 21.0 µg on different days (0, 5 or 12) o...

background: there is no doubt that luteal phase support is essential to enhance the reproductive outcome in ivf cycles. in addition to progesterone and human chorionic gonadotropin, several studies have described gnrh agonists as luteal phase support to improve implantation rate, pregnancy rate and live birth rate, whereas other studies showed dissimilar conclusions. all of these studies have b...

Background: Adiponectin is an adipocytokines which is secreted from the adipose tissue of human and domestic animals. No information is available regarding the follicular fluid adiponectin concentrations in dairy cows. Therefore, the aim of the present study was to determine the follicular fluid adiponectin concentrations in different-sized follicles in the luteal phase of the estrous cycle in ...

Vahabi S1, Ghafarzade M2, Lorzade N2, Moradkhani MR1, Frazan B1, Geranghadr P3 1. Assistant professor, Department of anesthesiology, Faculty of medicine, Lorestan University of medical sciences 2. Assistant professor, Department of gynecology, Faculty of medicine, Lorestan University of medical sciences 3. General practitioner Abstract Background: Postoperative nausea, vomiting (P...

objective: to evaluate the impact of luteal phase support with vaginal progesterone on pregnancy rates in the intrauterine insemination (iui) cycles, stimulated with clomiphene citrate and human menopausal gonadotropin (hmg), in sub fertile couples. materials and methods: this prospective, randomized, double blind study was performed in a tertiary infertility center from march 2011 to january 2...

The present study was designed to construct reliable daily salivary progesterone profiles throughout the luteal phase to accurately evaluate the corpus luteum function. Furthermore, we investigated the clinical relevance of a simple midluteal salivary progesterone estimation for the diagnosis of luteal phase insufficiency by determining the diagnostic efficiency and cutoff values. A total of 12...

Using a dispersed human luteal cell culture model, progesterone synthesis following treatment by incremental doses of human chorionic gonadotrophin (HCG) and the stable prostaglandin F2alpha (PGF2alpha) analogue cloprostenol, alone or in combination, was related to corpora lutea (CL) mRNA transcript abundance coding for the luteinizing hormone (LH)/HCG receptor (LH-R) and PGF2alpha-receptor (FP...

introduction: the implantation is a complex procedure that involves many molecules. one of these molecules is integrin specially &alphav;&beta3; which serves as receptor for components of extra cellular matrix to act as bridging molecules between the blastocyst and the endometrial surface during the implantation process. by blocking &alphav;&beta3; interactions, the implantation can be impaired...

i read with interest the papers written by peyghambari et al (2008) and niknafs et al   nd   et al   et al   et al   et al   et al   et al   et al   (1994) did not observe any   advantage in the pregnancy rates when adding estrogen+progesterone at luteal phase in patients undergoing ivf (6). in conclusion, the mechanism of luteal phase support in assisted reproduction is complex and a controver...