Habenula participates the vasopressor response by stimulation of the insular cortex, central-, lateral amygdaloid nucleus respectively.
- Author:
Zheng-Yong KOU
1
;
Man-Song LI
;
Chun-Xiao ZHANG
;
Shao WANG
Author Information
- Publication Type:Journal Article
- MeSH: Amygdala; physiology; Animals; Blood Pressure; physiology; Cerebral Cortex; physiology; Electric Stimulation; Habenula; physiology; Neural Pathways; physiology; Rats; Rats, Wistar
- From: Chinese Journal of Applied Physiology 2003;19(4):334-336
- CountryChina
- Language:Chinese
-
Abstract:
AIMTo investigate whether if the Habenula is the main relay involved in the vasopressor effect induced by the stimulus of insular cortex, central-, lateral amygdaloid nucleus respectively.
METHODSElectrostimulation of the nuclei mention above respectively, and microinjection of lidocaine into Habenula unilaterally and bilaterally.
RESULTSWhen INS or CeA was stimulated, inducing an obvious increase of blood pressure. To stimulate INS or CeA after microinjecting lidocaine into Hb 5 minutes, the amplitudes of the vasopressor responses were decreased significantly, and the decrease of the bilaterally was larger (decreased value: 41.7% in INS, 46.1% in CeA) than that of unilaterally (decreased value: 36.9% in INS, 39.6% in CeA).
CONCLUSIONHabenula is one of the main relays involved in the vasopressor effects induced by the stimulus of insular cortex, central-, lateral amygdaloid nucleus.
