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Open AccessJournal ArticleDOI

Stockpiling of Transitional and Classic Primary Follicles in Ovaries of Women with Polycystic Ovary Syndrome

TLDR
It is concluded that primary follicle growth is abnormally slow in PCOS and the dynamics are reflected in a stockpiling of classic primary follicles.
Abstract
Recently, we proposed an oocyte-growth differentiation factor-9 hypothesis that predicts alterations in the initial stages of folliculogenesis in polycystic ovary syndrome (PCOS) ovaries. Here, we test this hypothesis by scoring the composition of follicles in normal and PCOS ovaries. Follicles were classified as primordial, transitional primary, classic primary, secondary, and Graafian. A total of 2274 follicles were scored. The total number of growing follicles was significantly greater in PCOS ovaries than normal, but the number of nongrowing primordial follicles did not differ. Consequently, the increase in growing follicles in PCOS cannot be explained by increased primordial follicle recruitment. Differential counts showed that the number of growing follicles at each stage of development was significantly greater: PCOS had 2.7-fold more primary, 1.8-fold more secondary, and 2-fold more Graafian follicles than normal. The greatest effect was on the classic primary follicles where the number was almost...

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Citations
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Journal ArticleDOI

Polycystic ovary syndrome.

TL;DR: PCOS can impact women’s reproductive health, leading to anovulatory infertility and higher rate of early pregnancy loss, and the risks of diabetes, cardiovascular disease, hypertension, metabolic syndrome, and endometrial cancer among PCOS patients are significantly increased.
Book

Polycystic Ovary Syndrome

TL;DR: It is of interest to realize that polycystic ovary syndrome has moved from a histology diagnosis of ovarian tissue to a heterogeneous clinical syndrome, to a reproductive endocrine abnormality with elevated serum luteinizing hormone and androgen levels, and to a metabolic disease characterized by hyperinsulinemia and dyslipidemia.
Journal ArticleDOI

Scientific statement on the diagnostic criteria, epidemiology, pathophysiology, and molecular genetics of polycystic ovary syndrome

TL;DR: The pathophysiology involves abnormal gonadotropin secretion from a reduced hypothalamic feedback response to circulating sex steroids, altered ovarian morphology and functional changes, and disordered insulin action in a variety of target tissues.
Journal Article

Polycystic ovary syndrome

References
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Book ChapterDOI

Cell death : the significance of apoptosis

TL;DR: It has proved feasible to categorize most if not all dying cells into one or the other of two discrete and distinctive patterns of morphological change, which have, generally, been found to occur under disparate but individually characteristic circumstances.
Journal ArticleDOI

Insulin resistance and the polycystic ovary syndrome: mechanism and implications for pathogenesis.

TL;DR: Since PCOS usually has a menarchal age of onset, this makes it a particularly appropriate disorder in which to examine the ontogeny of defects in carbohydrate metabolism and for ascertaining large three-generation kindreds for positional cloning studies to identify NIDDM genes.
Journal ArticleDOI

Polycystic ovary syndrome.

TL;DR: It is now clear that the range of presenting symptoms of women with polycystic ovaries includes not only nonhirsute women with oligomenorrhoea or amenorrhOEa but also hirsute subjects with regular, ovulatory cycles.
Journal ArticleDOI

Growth differentiation factor-9 is required during early ovarian folliculogenesis

TL;DR: Oocyte growth and zona pellucida formation proceed normally, but other aspects of oocyte differentiation are compromised, and GDF-9 is the first oocyte-derived growth factor required for somatic cell function in vivo.
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