Ethanol inhibition of stress-related tachycardia involves medullary NMDA receptors.
Ethanol inhibition of stress-related tachycardia involves medullary NMDA receptors.
复制标题
乙醇对应激相关心动过速的抑制作用涉及髓质 NMDA 受体。
DOI:
10.1016/0014-2999(96)00305-6
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发表时间:
1996
影响因子:
5
通讯作者:
Kunos,G
中科院分区:
文献类型:
--
作者:
Varga,K;Lovas,G;Palkovits,M;Kunos,G
In rats, neurons in the perifornical area of the hypothalamus send descending projections to the commissural part of the nucleus tractus solitarii as demonstrated by an anterograde tracer study. In urethane-anaesthetised rats, stimulation of neurons in the perifornical area by microinjection of bicuculline or 6-OH-saclofen causes tachycardia and inhibits baroreflex bradycardia. The effects elicited from the perifornical area are similar in magnitude to those elicited from the adjacent dorsomedial nucleus, also called the hypothalamic defense area. Microinjection into the nucleus tractus solitarii of the NMDA (N-methyl-d-aspartate) receptor antagonist, AP-7 (2-amino-7-phosphonoheptanoic acid), inhibits the tachycardic response to stimulation of the perifornical area. Injection of ethanol intravenously or into the nucleus tractus solitarii also inhibits this tachycardic response, but causes no further inhibition when combined with AP-7. We conclude that the perifornical area is part of the hypothalamic defense area, and it is under strong, tonic GABAergic inhibition mediated by both GABAAand GABABreceptors. Furthermore, descending input from the perifornical area to the nucleus tractus solitarii is via an NMDA synapse, and ethanol inhibits stress-related tachycardia by inhibiting these NMDA receptors in the nucleus tractus solitarii.
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DOI:
--
发表时间:
1993
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
el-Mas,MM;Abdel-Rahman,AA
通讯作者:
Abdel-Rahman,AA
影响因子:
2.3
作者:
L. Pohorecky
通讯作者:
L. Pohorecky
影响因子:
3.8
作者:
G. T. Horst;P. Luiten
通讯作者:
P. Luiten
影响因子:
2.9
作者:
Y. T. Wang;D. Bieger;R. S. Neuman
通讯作者:
R. S. Neuman
DOI:
--
发表时间:
1992
期刊:
The Journal of comparative neurology
影响因子:
--
作者:
G. Allen;D. Cechetto
通讯作者:
D. Cechetto