Background & Aim: Oocytes in vitro maturation is an enormously promising technology for the treatment of infertility, yet its clinical application remains limited owing to poor success rates. Therefore this study was designed to determine the effect of Gundelia Tournefortii root hydro alcoholic extract as a source of antioxidant on in vitro oocyte maturation. Experimental: In this stu...

Background & Aim: Oocytes in vitro maturation is an enormously promising technology for the treatment of infertility, yet its clinical application remains limited owing to poor success rates. Therefore this study was designed to determine the effect of Gundelia Tournefortii root hydro alcoholic extract as a source of antioxidant on in vitro oocyte maturation. Experimental: In this stu...

Females of solitary, nest-provisioning bees have relatively low fecundity, but produce large eggs as part of their overall strategy of investing substantially in each offspring. In intraspecific comparisons of several species of solitary, nest-provisioning bees and wasps, the size of the mature eggs produced increases with female body size. We further examined oocyte size-body size correlations...

The complexity of the events which orchestrate mammalian oocyte growth and ultimate acquisition of developmental competence is still unclear and under continuous investigation. Starting from the observation that germinal vesicle (GV) bovine oocytes exhibit different patterns of chromatin configuration (from GV0 to GV3), the present study aimed at analyzing the morphology of the nuclear and the ...

The potential use of immature oocytes for in-vitro fertilization (IVF) requires the conditions for successful maturation to be defined. This study focused on the day of oocyte retrieval. The selection of a dominant follicle may induce endocrine changes in the remaining cohort that may be detrimental to their subsequent fertilization and embryonic development. Natural cycles in volunteer donors ...

The objective of the present study was to examine the association between follicular fluid (FF) steroid concentration and oocyte maturity and fertilization rates. Seventeen infertile patients were submitted to ovulation induction with urinary human follicle-stimulating hormone, human menopausal gonadotropin and human chorionic gonadotropin (hCG). A total of 107 follicles were aspirated after hC...

To evaluate the development potential of immature metaphase 1 oocytes when converted to mature M2 within 2 6 hours. A total 620 cycles from June 2019 Oct 2020 at IVF unit IKDRC hospital, ICSI was performed on 4,975 out which 398 were (M1) time denudation .Immature M1 evaluated every hours for maturation status and divided accordingly into three groups, in group (n=152) first 2hours, B (n= 98) 4...

this study investigated the effect of different harvesting techniques on the recovery rate and quality of bovine cumulus oocyte complexes (cocs) and their subsequent developmental competence including in vitro maturation, fertilization and blastocyst formation. the cocs were retrieved from slaughter ovaries using aspiration, slicing, or aspiration followed by slicing. the cocs were examined mic...

The aim of this study was to evaluate the effect of ethylene glycol (EG) concentration, equilibration time, and the use of two disaccharides in the vitrification solution used on immature bovine oocytes that were thawed and then matured in vitro. Factorial combinations of the following were tested: three equilibration solutions (ES), containing 3, 20 or 40% EG; three equilibration times, 0.5, 5...

BACKGROUND Relaxin is a small peptide also known as pregnancy hormone in many mammals. It is synthesized by both male and female tissues, and its secretions are found in various body fluids such as plasma serum, ovarian follicular fluid, utero-oviduct secretions, and seminal plasma of many mammals, including pigs. However, the presence and effects of relaxin in porcine gametes and embryos are s...