The stimulation of testosterone and LH secretion by synthetic GnRH in the male Cape porcupine

Autor:	R. J. van Aarde, V. van Wyk
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	medicine.medical_specialty Lh secretion biology business.industry medicine.medical_treatment Stimulation Gnrh challenge Endocrinology Internal medicine biology.animal Medicine Animal Science and Zoology business Luteinizing hormone Saline Porcupine Testosterone Hormone
Zdroj:	African Zoology; Vol 26, No 4 (1991); 188-192
ISSN:	1562-7020 2224-073X
Popis:	The effects of GnRH stimulation on plasma testosterone and luteinizing hormone (LH) levels in Cape porcupine males were examined by analysing plasma collected before and after an intravenous injection of GnRH. In six mature males and one subadult, which were given an intravenous injection of 0,5 ml saline, levels of plasma testosterone and LH did not increase. Four weeks later an intravenous GnRH challenge (40 μg) caused plasma testosterone to rise three-fold and LH to rise 10-15-fold within 180 min in five of the mature males. Peaks of plasma testosterone and LH occurred 90 and 120 min, respectively, after stimulation, and baseline and peak levels of both hormones were significantly related.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddbd5e109a2f882e367cc35ebedf08fc https://www.ajol.info/index.php/az/article/view/154163 Zobrazit plný text záznamu