Effects of the enantiomers of (+/-)-HA-966 on dopamine neurons: an electrophysiological study of a chiral molecule.
Effects of the enantiomers of (+/-)-HA-966 on dopamine neurons: an electrophysiological study of a chiral molecule.
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(i-)-HA-966 对映体对多巴胺神经元的影响:手性分子的电生理学研究。
DOI:
10.1016/0014-2999(95)00390-7
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发表时间:
1995
影响因子:
5
通讯作者:
Grobaski,KC
中科院分区:
文献类型:
--
作者:
Shepard,PD;Connelly,ST;Lehmann,H;Grobaski,KC
The present study was conducted to evaluate the effects of the resolved enantiomers of (±)-1-hydroxy-3-aminopyrrolidone-2 ((±)-HA-966) on the electrophysiological properties of dopamine-containing neurons in the substantia nigra of the chloral hydrate anesthetized rat. Both (+)- and (−)-HA-966 produced a dose-dependent reduction in firing rate that eventually resulted in total cessation of spontaneous neuronal activity (ID50= 5.7 and 57.8 mg/kg i.v., respectively). The inhibitory effects of both drugs were accompanied by a marked increase in the regularity of neuronal firing and a concomitant suppression of bursting activity. Although approximately 10-fold less potent than the (−) enantiomer, the inhibitory effects of (+)-HA-966 were completely antagonized by the centrally active, GABABreceptor antagonist, CGP-35348 (300 mg/kg i.v.). These data suggest that the complementary electrophysiological effects of the enantiomers of (±)-HA-966 on nigral dopamine neurons are mediated through a common mechanism of action possibly involving a novel interaction with GABABreceptors.
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影响因子:
5
作者:
C. V. van Valkenburg;E. L. Noach
通讯作者:
E. L. Noach
DOI:
10.1113/jphysiol.1976.sp011363
发表时间:
1976
期刊:
The Journal of Physiology
影响因子:
--
作者:
T. Stone
通讯作者:
T. Stone
影响因子:
2.9
作者:
J. Davies;J. Watkins
通讯作者:
J. Watkins
影响因子:
2.3
作者:
OVERTON, P;CLARK, D
通讯作者:
CLARK, D
影响因子:
5.5
作者:
HENDERSON, G;JOHNSON, JW;ASCHER, P
通讯作者:
ASCHER, P