DO NMDA RECEPTORS MEDIATE THE EFFECTS OF LIGHT ON CIRCADIAN BEHAVIOR

被引：137

作者：

COLWELL, CS

RALPH, MR

MENAKER, M

机构：

[1] Department of Biology, University of Virginia, Charlottesville

来源：

BRAIN RESEARCH | 1990年 / 523卷 / 01期

关键词：

(+)-5-Methyl-10,11-dihydro-5H-dibenzo[a,b]cyclohepten-5,10-imine maleate; Circadian rhythm; Excitatory amino acid; Hamster; Ketamine; Phenylcyclidine;

D O I：

10.1016/0006-8993(90)91643-U

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We report here the results of experiments designed to evaluate whether a specific NMDA receptor antagonist, (+)-5-methyl-10,11-dihydro-5H-dibenzo[a,b]cyclohepten-5,10-imine maleate (MK-801), blocks the phase shifting effects of light on the circadian rhythm of wheel-running activity in golden hamsters. Intraperitoneal administration of (+)-MK-801 produced a dose-dependent blockade of both light-induced phase advances and delays. The effect was stereoselective and treatment with related compounds, phenylcyclidine and ketamine, also blocked light-induced phase shifts. MK-801, by itself, did not cause any consistent effect on the phase of the rhythm. These data, coupled with previous findings, indicate that excitatory amino acid receptors play an important role in the transmission of light information from the retina to the circadian system. © 1990.

引用

页码：117 / 120

页数：4

共 23 条

[1] THE DISSOCIATIVE ANESTHETICS, KETAMINE AND PHENCYCLIDINE, SELECTIVELY REDUCE EXCITATION OF CENTRAL MAMMALIAN NEURONS BY N-METHYL-ASPARTATE [J].