Bisphenol S negatively affects the meotic maturation of pig oocytes

: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes

هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...

Vitrification Affects Nuclear Maturation and Gene Expression of Immature Human Oocytes

Background: Vitrification of oocytes is a fast-freezing technique, which may affect the quality of the human oocyte, and consequently affects the embryo development, pregnancy and birth. The aim of the current study was to investigate the consequence of in-vitro vitrification on maturation status of immature human oocytes, additionally, expression levels of stress, and apoptosis related genes. ...

P-87: High Fat Diet Affects In Vitro Maturation and In Vitro Fertilization of Mouse Oocytes

Background: Physiological effects of obesity are increasingly common in women of reproductive age and are associated with infertility. Obese women have dysfunction in hypothalamic-pituitary-ovarian axis, menstrual cycle and are up to three times more likely to have decreased oligo-/anovulation. The purpose of present study was to evaluate the high fat diet on IVM and IVF outcomes in mouse. Mate...

Inhibition of meiotic maturation in growing pig oocytes by factor(s) from cumulus cells.

Total inhibition of germinal vesicle breakdown (GVBD) was observed in growing pig oocytes (internal diameter 80, 90 and 100 microns) when they were cultured in a medium conditioned by cumulus oocyte complexes (COCs) of fully grown oocytes. In denuded growing oocytes, only partial inhibition was observed. The inhibitory effect was fully reversible. The addition of heparin (300 IU/ml) could overc...

Salbutamol affects body composition of the guinea pig