NMDA-EVOKED ADENOSINE RELEASE FROM RAT CORTEX DOES NOT REQUIRE THE INTERMEDIATE FORMATION OF NITRIC-OXIDE

被引:20
作者
CRAIG, CG [1 ]
WHITE, TD [1 ]
机构
[1] DALHOUSIE UNIV,DEPT PHARMACOL,HALIFAX B3H 4H7,NS,CANADA
关键词
ADENOSINE; PURINE; NITRIC OXIDE; CORTEX; NMDA; RELEASE;
D O I
10.1016/0304-3940(93)90255-J
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Excitatory amino acids (EAAs) such as glutamate release the inhibitory neuromodulator adenosine from superfused rat cortical slices through the activation of both NMDA and non-NMDA EAA receptors. This study investigated the possibility that NMDA-evoked adenosine release may involve the intermediate formation of nitric oxide (NO). However, sodium nitroprusside did not evoke the release of adenosine, L-arginine did not augment and L-N(upsilon)-nitroarginine did not diminish NMDA-evoked adenosine release. It appears. therefore, that NMDA-evoked NO formation does not play a role in NMDA-evoked adenosine release in the cortex.
引用
收藏
页码:167 / 169
页数:3
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