202.Estrogen actions on follicle formation and early follicle development
نویسندگان
چکیده
منابع مشابه
Cytokine (IL16) and tyrphostin actions on ovarian primordial follicle development.
An ovarian follicle is composed of an oocyte and surrounding theca and granulosa cells. Oocytes are stored in an arrested state within primordial follicles until they are signaled to re-initiate development by undergoing primordial-to-primary follicle transition. Previous gene bionetwork analyses of primordial follicle development identified a number of critical cytokine signaling pathways and ...
متن کاملHormonal regulation of early follicle development in the rat ovary.
Although earlier studies focused on the hormonal regulation of antral and preovulatory follicles, recent studies indicate the importance of the hormonal control mechanism for preantral follicles. The endocrine hormone FSH is not only a survival factor for early antral follicles but also a potent growth and differentiation factor for preantral follicles. In addition, KGF secreted by theca cells ...
متن کاملDirect actions of kit-ligand on theca cell growth and differentiation during follicle development.
The direct actions of kit-ligand/stem cell factor (KL) in developing ovarian follicles were investigated. Previous studies have shown that granulosa cells express KL that can support oocyte development. The current study demonstrates that KL can also act directly on theca cells to promote cellular growth and differentiation. Through RT-PCR analysis it was shown that bovine granulosa cells expre...
متن کاملRegulation of primordial follicle assembly and development.
The assembly of the primordial follicles early in ovarian development and the subsequent development and transition of the primordial follicle to the primary follicle are critical processes in ovarian biology. These processes directly affect the number of oocytes available to a female throughout her reproductive life. Once the pool of primordial follicles is depleted a series of physiological c...
متن کاملAngiogenic factors and ovarian follicle development
Ovarian follicles require an adequate blood supply for oxygen, nutrients and hormones, in addition to eliminating CO2 and other metabolites. Acquisition of an adequate vascular supply is probably a limiting step in the selection and maturation of the dominant follicle. In this way, there is a progressive interest in the study of the growth factors involved in the angiogenic process. In addition...
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ژورنال
عنوان ژورنال: Reproduction, Fertility and Development
سال: 2004
ISSN: 1031-3613
DOI: 10.1071/srb04abs202