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Gnrh: The Master Molecule of Reproduction

Gnrh: The Master Molecule of Reproduction

Paperback

Medical ReferenceAnthropology

ISBN10: 1441949518
ISBN13: 9781441949516
Publisher: Springer Nature
Published: Dec 3 2010
Pages: 324
Weight: 1.07
Height: 0.72 Width: 6.14 Depth: 9.21
Language: English

Gonadotropin-releasing hormone (GnRH) cells are the key regulators of reproductive function in all vertebrate organisms. The GnRH molecule is synthesized in a small number of neurons in rostral hypothalamic regions of the brain. In mammals, these neurons release the GnRH decapeptide into the portal capillary system leading to the anterior pituitary gland. There, GnRH causes the release of the gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), which in turn act upon the gonads to stimulate their maturation, and to cause synthesis of sex steroid hormones, estrogen, progesterone and testosterone. Although each of the levels of the hypothalamic-pituitary-gonadal axis is critical for reproductive function, GnRH neurons play the primary role in the control of reproductive maturation and adult reproductive function, and may even play a role in reproductive senescence.

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Anthropology