TY - JOUR
T1 - Circadian changes in arginine vasopressin level in the suprachiasmatic nuclei in the rat
AU - Yamase, Keitaro
AU - Takahashi, Sumio
AU - Nomura, Kouji
AU - Haruta, Kazuhiko
AU - Kawashima, Seiichiro
PY - 1991/9/16
Y1 - 1991/9/16
N2 - 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.
AB - 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.
KW - Arginine vasopressin
KW - Circadian rhythm
KW - Rat
KW - Suprachiasmatic nuleus
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U2 - 10.1016/0304-3940(91)90409-M
DO - 10.1016/0304-3940(91)90409-M
M3 - Article
C2 - 1795892
AN - SCOPUS:0025821242
VL - 130
SP - 255
EP - 258
JO - Neuroscience Letters
JF - Neuroscience Letters
SN - 0304-3940
IS - 2
ER -