Estradiol Down-Regulates RF-Amide-Related Peptide (RFRP) Expression in the Mouse Hypothalamus
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چکیده
منابع مشابه
P-21: RF-Amide Related Peptide mRNA Expression in Male Rat Dorsomedial Hypothalamic Nucleus during Chronic Stress
Background Chronic stress induces male reproductive dysfunction; however, the involved mechanisms are not clear. It has been suggested that the gonadotrophin-inhibitory hormone, known as RF-amide related peptide (RFRP) in mammalian species, may mediate this inhibitory effect of stress. The objective of the present study was to compare the effect of chronic stress and glucocorticoids receptor an...
متن کاملDistribution and regulation of gonadotropin-releasing hormone, kisspeptin, RF-amide related peptide-3, and dynorphin in the bovine hypothalamus.
Recent work has led to the hypothesis that kisspeptin/neurokinin B/dynorphin (KNDy) neurons in the arcuate nucleus (ARC) play a key role in gonadotropin-releasing hormone (GnRH) pulse generation and gonadal steroid feedback, with kisspeptin driving GnRH release and neurokinin B and dynorphin acting as pulse start and stop signals, respectively. A separate cell group, expressing RFamide-related ...
متن کاملExpression of RFamide-related peptide in the dorsomedial nucleus of hypothalamus during the estrous cycle of rats
Introduction: RFamide-related peptide (RFRP) is believed to act as an inhibitor of gonadotropin releasing hormone (GnRH) secretion. The aim of the present study was to compare the expression pattern of RFRP neurons in the dorsomedial nucleus of hypothalamus (DMH) at different phases of the rat estrous cycle. Methods: The phases of the estrous cycle were determined in 16 adult female Sprague-...
متن کاملIs precocious puberty linked to hypothalamic expression of arginine-phenylalanine-amide-related peptide?
The up-regulator regulation and down-regulator regulation of gonadotropin-releasing hormone (GnRH) in central precocious puberty is not yet known. However, recent advances in neuroendocrinology have shown the controlling role of arginine-phenylalanine (RF)-amide-related peptides (RFRPs) on GnRH secretion in different phenomenon of reproduction such as estrus cycle and pregnancy, but the exact r...
متن کاملP-222: Expression of RFamide-Related Peptide-3 and KiSS-1 mRNA in The Hypothalamus of Pregnant Rat
Background: There is no follicular development during pregnancy in the rat comparable to the changes of the estrous cycle. RFamide-related peptide-3 (RFRP-3) and kisspeptin were recognized as regulator of gonadotropin releasing hormone (GnRH) and luteinizing hormone (LH) secretion in several species, including the rat. The aim of the present study was to evaluate the relative expression of RFRP...
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ژورنال
عنوان ژورنال: Endocrinology
سال: 2011
ISSN: 0013-7227,1945-7170
DOI: 10.1210/en.2010-1418