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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1 Pt 2
pubmed:dateCreated
1997-3-31
pubmed:abstractText
The present study was carried out using a biotelemetry system to investigate whether central angiotensin II (ANG II) is involved in stress-induced cardiovascular and body temperature responses in rats. Intracerebroventricular injections of the nonselective ANG II-receptor antagonist saralasin and of the ANG II AT1-receptor antagonist losartan attenuated both the heart rate and pressor responses to immobilization stress in a dose-dependent manner. The elevation of plasma norepinephrine and epinephrine induced by immobilization stress was also suppressed by central ANG II-receptor blockade, suggesting a general attenuation of stress-induced sympathetic nervous and adrenomedullary activity by central ANG II-receptor blockade. The hyperthermia induced by immobilization stress was attenuated by central ANG II AT1-receptor blockade in a dose-dependent manner. The effects of central saralasin on the blood pressure response induced by immobilization stress were greater in Wistar-Kyoto rats than in spontaneously hypertensive rats. The present results suggest that central ANG II AT1-receptors are involved in expression of the tachycardia and hyperthermia, as well as the pressor response, induced by immobilization stress.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0002-9513
pubmed:author
pubmed:issnType
Print
pubmed:volume
272
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
R26-33
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Role of central ANG II receptors in stress-induced cardiovascular and hyperthermic responses in rats.
pubmed:affiliation
Department of Physiology, Yamaguchi University School of Medicine, Japan.
pubmed:publicationType
Journal Article