نتایج جستجو برای: superovulated females

تعداد نتایج: 121269  

2012
Seung S Park Min J Park Bo S Joo Jong K Joo Jung B Son Kyu S Lee

BACKGROUND Advancing female age remains a difficult problem in infertility treatment. Ovarian angiogenesis plays an important role in follicular development and the activation of ovarian angiogenesis has been emerged as a new strategy for the improvement of age-related decline of oocyte quality. BMP-6 affect gonadotropin signals in granulosa cells and it promotes normal fertility by enabling ap...

Journal: :Human reproduction 2007
A Sato E Otsu H Negishi T Utsunomiya T Arima

BACKGROUND There is an increased incidence of rare imprinting disorders associated with assisted reproduction technologies (ARTs). The sex-specific epigenetic modifications that are imposed during gametogenesis act as a primary imprint to distinguish maternal and paternal alleles. The most likely candidate for the gametic mark is DNA methylation. However, the timing of DNA methylation acquisiti...

Journal: :Journal of reproduction and fertility 1985
A Komar M Kujawa

Oocytes collected from superovulated Swiss albino mice were activated by heat-shock and/or fertilized in vitro. Electron microscopy showed that the cortical reaction in heat-treated eggs was incomplete. Digestion of the zona pellucida of untreated, heat-treated and fertilized eggs by pronase showed that zona pellucida hardening did occur but was weaker in heat-treated than in fertilized eggs. F...

افروغ, مهسا, عرفانی مجد, نعیم, نجف زاده ورزی, حسین,

Background & Aims: Diabetes mellitus is a metabolic disease which causes congenital anomalies and misabortion in females. Decrease in follicle growth and maturation and quality of oocytes occur in type 1 diabetes. The antidiabetic effect of Aloe vera is reported by several investigators. In this study, the effects of Aloe vera gel on diabetic mice oocyte were examined. Materials & Metho...

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