Blood pressure and heart rate effects of kynuramine in pithed rats.

Abstract:

:Kynuramine increased heart rate and blood pressure in pithed rats. Heart rate responses were blocked by beta-adrenoceptor antagonists and reserpine pretreatment. Both of these treatments reduced the pressor responses to kynuramine. Remaining pressor activity was inhibited by phentolamine. The pressor responses to kynuramine were reversed to depressor responses during infusion of norepinephrine but not vasopressin. It is concluded that kynuramine releases cardiac catecholamines and acts as a partial agonist on vascular alpha-adrenoceptors.

journal_name

Eur J Pharmacol

authors

Johnson TD,Clarke DE

doi

10.1016/0014-2999(83)90346-1

subject

Has Abstract

pub_date

1983-02-18 00:00:00

pages

323-6

issue

2-3

eissn

0014-2999

issn

1879-0712

pii

0014-2999(83)90346-1

journal_volume

87

pub_type

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