Proliferative activity of multi-oocyte follicles in sheep ovaries
نویسندگان
چکیده
منابع مشابه
Oestrogen production by individual follicles explanted from ovaries of sheep.
Ovarian follicles are a major site of oestrogen synthesis in sheep, but almost nothing is known about the relative contribution made by follicles of different sizes to the output of oestrogen at various stages of the reproductive cycle. To determine this, ovaries were dissected from sheep, all follicles over 2 mm in diameter were explanted separately as organ cultures and the daily production o...
متن کاملOccurrence of multi-oocyte follicles in aquaporin 8-deficient mice
BACKGROUND Granulosa cells play a key role in folliculogenesis and female reproduction. Our previous study demonstrated that water channel aquaporin-8 (AQP8) is expressed in mouse follicular granulosa cells and is an important determinant of granulosa cell apoptosis and follicular maturation. More roles of AQP8 in folliculogenesis remain to be determined. FINDINGS The present study reports th...
متن کاملBiochemical and hormonal characterization of follicles from follicular and luteal phase ovaries of goat and sheep.
Follicles from goat and sheep ovaries were characterized for their biochemical and hormonal parameters to investigate the effect of developmental stage of follicles on ovarian steroidogenesis. The follicles were isolated mechanically from follicular and luteal phase ovaries and divided in 6 morphologically different groups (small, medium and large follicular and small, medium and large luteal)....
متن کاملAn in vitro study on oocyte and follicles of transplanted ovaries treated with vascular endothelial growth factor
OBJECTIVE Retrieval of high quality follicles and oocytes from transplanted ovaries is essential for higher fertility preservation efficiency. The effect of vascular endothelial growth factor (VEGF) was evaluated on the survival rate of preantral follicles following ovarian transplantation. MATERIAL AND METHODS Prepubertal female mice were divided to 6 groups including: control (C), transplan...
متن کاملExpression and activity of microsomal epoxide hydrolase in follicles isolated from mouse ovaries.
Microsomal epoxide hydrolase (mEH) is involved in the detoxification of xenobiotics that are or can form epoxide metabolites, including the ovotoxicant, 4-vinylcyclohexene (VCH). This industrial chemical is bioactivated by hepatic CYP450 to the diepoxide metabolite, VCD, which destroys mouse small preantral follicles (F1). Since ovarian mEH may play a role in VCD detoxification, these studies i...
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ژورنال
عنوان ژورنال: Small Ruminant Research
سال: 2017
ISSN: 0921-4488
DOI: 10.1016/j.smallrumres.2016.12.004