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Follistatin Suppresses Steroid-Enhanced Follicle-Stimulating Hormone Release:...
The central role of activin (Act), inhibin (Inh), and follistatin (FS) in regulating FSH synthesis and secretion is well established. These three proteins, along with hypothalamic factors and gonadal...
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Follistatin Suppresses Steroid-Enhanced Follicle-Stimulating Hormone Release:...
Materials P4, B, T, and E2 (Sigma Chemical Co., St. Louis, MO) were dissolved in absolute ethanol at 1000 times the desired final concentration; the corresponding concentration of ethanol (0.1%) was...
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Follistatin Suppresses Steroid-Enhanced Follicle-Stimulating Hormone Release:...
Primary anterior pituitary cells from female rats at random stages of the estrous cycle were incubated with Act, B, or P4, or combinations of Act, B, and P4 for 48 h (Fig. 1; experiment 1). In all...
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Follistatin Suppresses Steroid-Enhanced Follicle-Stimulating Hormone Release:...
Several lines of evidence indicate that B, P4, or T increase FSHp mRNA and FSH intracellular content and release in vitro. The present study examined the possible interaction between Act and steroids...
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Estrogen and Progesterone Metabolites and Follicle-Stimulating Hormone:...
In women, menopause is defined as permanent cessation of menstruation for at least 12 mo resulting from loss of follicular activity. The postmenopause is the entire span of life following the final...
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Estrogen and Progesterone Metabolites and Follicle-Stimulating Hormone:...
Animal Subjects Twenty intact, female rhesus macaques were selected for this study based on their general health and age (18-26 yr). One female was killed during the study after being diagnosed with a...
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Estrogen and Progesterone Metabolites and Follicle-Stimulating Hormone: RESULTS
Of the 198 interbleed intervals, 78 (39%) were associated with year-round normal ovulatory menstrual cycles, 69 (35%) with normal cycles and the seasonal transition to anovulatory cycles, and 37 (19%)...
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Estrogen and Progesterone Metabolites and Follicle-Stimulating Hormone:...
The present data describe daily ovarian hormone patterns in aged, nonpregnant laboratory macaques throughout a complete year and extend the observations of Gilardi et al. in describing the menopausal...
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