Melatonin, pinealectomy, and release of neurohypophysial hormones: In vitro studies
作者:
Marlena Juszczak,
Bozena Stempniak,
Jan W. Guzek,
期刊:
Journal of Pineal Research
(WILEY Available online 1992)
卷期:
Volume 12,
issue 1
页码: 1-6
ISSN:0742-3098
年代: 1992
DOI:10.1111/j.1600-079X.1992.tb00019.x
出版商: Blackwell Publishing Ltd
关键词: melatonin;pinealectomy;vasopressin;oxytocin
数据来源: WILEY
摘要:
Abstract:The effect of melatonin as well as pinealectomy on the basal and K+‐evoked release of vasopressin and oxytocin from the neurointermediate lobes in vitro was determined. Pineal removal resulted in a diminution of vasopressin and oxytocin release from the neurointermediate lobes in vitro. Melatonin (10−3or 10−6M/1) increased vasopressin and oxytocin release from neurointermediate lobes of sham‐operated rats. Nevertheless, when pinealectomized rats served as donors of the neurointermediate lobes, melatonin (10−3or 10−6M/1) increased vasopressin release under basal conditions. For the same tissue, melatonin did not affect the oxytocin release either under basal conditions or during depolarization due to excess potassium. When 10−7M/l melatonin was used, no changes in either vasopressin or oxytocin release were obse
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