Agouti Related Peptide (Agrp) Stimulates the Hypothalamo Pituitary Gonadal Axis in Vivo & in Vitro in Male Rats
نویسندگان
چکیده
منابع مشابه
The hypothalamo-pituitary–gonadal axis
This review provides an outline of how our understanding of the neuroendocrine control of the hypothalamo-pituitary–gonadal axis has evolved since the publication of Geoffrey Harris’ renowned monograph in 1955. Particular attention is directed to the neurobiology underlying pulsatile GnRH release from the hypothalamus, the neuroendocrine control of ovarian cycles, puberty and seasonality of gon...
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Seasonal reproduction in birds is the adaptation to breed at the time of the greatest survival of young. This exact moment is mainly imposed by the photoperiod which stimulates the hypothalamo-pituitary-gonadal axis and starts breeding season. This article summarizes present knowledge concerning: 1/ perception and transduction of light into the biological signal; 2/ model of the avian photoperi...
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The distribution of orexin A-immunoreactive neurons and orexin type I receptors in the CNS suggests important roles in regulating the hypothalamo-pituitary gonadal (HPG) axis and sexual behaviors. We examined orexin A interactions in the HPG axis in vivo and in vitro. Orexin A stimulated LH-releasing hormone (LHRH) release in hypothalamic explants harvested from male rats (+133%) and from femal...
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Background: Insecticides may have negative effects on reproductive organs. Given the interaction between leptin and the hypothalamic-pituitary-gonadal (HPG) axis, we sought to investigate the changes in leptin and the HPG axis in adult male rats poisoned with Proteus and Biscaya insecticides. Methods: Our experimental subjects were 110 adult male Wistar rats (80–90 days of age; average weight=2...
متن کاملHypothalamo-pituitary-gonadal axis in control of female reproductive cycle.
Gonadotropin-releasing hormone (GnRH) secretion from the hypothalamus is pivotal to the regulation of reproductive physiology in vertebrates. The characteristic periodic secretion of gonadotropin releasing hormone (GnRH) from the medial basal hypothalamus (MBH), at the rate of one pulse an hour is essential for the maintenance of the menstrual cycle. These pulses are due to oscillations in the ...
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ژورنال
عنوان ژورنال: Endocrinology
سال: 1999
ISSN: 0013-7227
DOI: 10.1210/en.140.11.5459