ETHANOL INHIBITION OF N-METHYL-D-ASPARTATE-ACTIVATED ION CURRENT IN RAT HIPPOCAMPAL-NEURONS IS NOT COMPETITIVE WITH GLYCINE

被引:82
|
作者
PEOPLES, RW
WEIGHT, FF
机构
[1] Section of Electrophysiology, Laboratory of Physiologic and Pharmacologic Studies, National Institute on Alcohol Abuse and Alcoholism, Rockville
关键词
N-METHYL-D-ASPARTATE; ETHANOL; GLYCINE; HIPPOCAMPUS; RAT;
D O I
10.1016/0006-8993(92)90674-X
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The interaction of ethanol with glycine at the N-methyl-D-aspartate (NMDA)-activated ion channel was investigated in voltage-clamped rat cultured hippocampal neurons. As shown previously, glycine increased, and ethanol inhibited, the NMDA-activated current in these cells. Concentration-response data for glycine (0.1-100-mu-M) indicate that the inhibition of NMDA-activated current by ethanol does not involve a competitive interaction with glycine. Thus, ethanol appears to inhibit NMDA-activated current at a locus different from the glycine modulatory site.
引用
收藏
页码:342 / 344
页数:3
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