CIRCADIAN CHANGES IN ARGININE VASOPRESSIN LEVEL IN THE SUPRACHIASMATIC NUCLEI IN THE RAT

被引:53
|
作者
YAMASE, K
TAKAHASHI, S
NOMURA, K
HARUTA, K
KAWASHIMA, S
机构
[1] HIROSHIMA UNIV,FAC SCI,INST ZOOL,NAKA KU,HIROSHIMA 730,JAPAN
[2] UNIV TOKYO,FAC SCI,INST ZOOL,TOKYO 113,JAPAN
关键词
ARGININE VASOPRESSIN; SUPRACHIASMATIC NUCLEUS; CIRCADIAN RHYTHM; RAT;
D O I
10.1016/0304-3940(91)90409-M
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Arginine vasopressin (AVP) neurons were preferentially localized in the dorsomedial part of the suprachiasmatic nucleus (SCN). To know the role of AVP neurons in the SCN, male rats were kept under a normal light-dark cycle (L-D), or under constant darkness (D-D) for 20 days. In L-D condition, AVP levels in the SCN showed the circadian change. In D-D condition, the patterns in AVP levels showed a free-running rhythm, and an about 12-h shift per 20 days. This result suggests that the activity of AVP neurons may be closely associated with the endogenous circadian rhythm of the SCN.
引用
收藏
页码:255 / 258
页数:4
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