CIRCADIAN-RHYTHMS OF VASOPRESSIN CONTENT IN THE SUPRACHIASMATIC NUCLEUS OF THE RAT

被引：97
|
作者：
TOMINAGA, K
SHINOHARA, K
OTORI, Y
FUKUHARA, C
INOUYE, SIT
机构：
[1] KYUSHU UNIV 62,FAC PHARMACEUT SCI,DEPT PHARMACOL,HIGASHI KU,FUKUOKA 812,JAPAN
[2] TOKAI UNIV,SCH MED,DEPT PHARMACOL,ISEHARA,KANAGAWA 25911,JAPAN
来源：
NEUROREPORT | 1992年 / 3卷 / 09期
关键词：
SUPRACHIASMATIC NUCLEUS; CIRCADIAN RHYTHM; VASOPRESSIN; ENZYME IMMUNOASSAY; RAT;
D O I：
10.1097/00001756-199209000-00022
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
THE suprachiasmatic nucleus (SCN) of the anterior hypothalamus contains a circadian pacemaker in mammals. We determined the circadian profiles of arginine-vasopressin (AVP), a major peptide in the dorsomedial SCN, in rats under light-dark (LD), constant dark (DD) and constant light (LL) conditions. Under LD conditions, AVP levels in the SCN showed circadian rhythmicity with a peak at early light phase and a broad trough during the dark phase. This rhythm in the AVP contents was maintained even after 14 days of free-running under DD conditions and 3 days under LL conditions. These circadian patterns of AVP are similar to those of somatostatin, another peptide in the dorsomedial SCN. This indicates a common mode of regulation for peptides in this subfield of the SCN.
引用
收藏
页码：809 / 812
页数：4
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