Antihypertensive Effects of a Soluble Guanylate Cyclase Stimulator.
Bull Exp Biol Med
; 174(1): 33-36, 2022 Nov.
Article
em En
| MEDLINE
| ID: mdl-36437315
ABSTRACT
We studied antihypertensive activity of an indolinone derivative (compound GRS), a soluble guanylate cyclase stimulator and a drug with previously proven antiaggregant effects. Contraction activity of isolated aorta segments of Wistar-Kyoto (WKY) rats was assessed in vitro using a mechanographic method. Addition of GRS (0.1-100 µÐ) resulted in dose-dependent relaxation of endothelium-denuded aorta segments. Pretreatment of aorta smooth muscle segments with a specific inhibitor of soluble guanylate cyclase (ODQ, 1 µM) weakened the vasodilatory effect of GRS. Antihypertensive activity of the indolinone derivative GRS was studied in spontaneously hypertensive SHR rats. Single oral administration of 5 and 10 mg/kg GRS was followed by a significant dose-dependent reduction of systolic and diastolic BP in SHR rats. Antihypertensive effect of GRS in a dose of 5 mg/kg was more potent than that of the reference drug isosorbide dinitrate. GRS in a dose of 10 mg/kg did not affect systolic and diastolic BP in normotensive WKY rats.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Vasodilatadores
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Pressão Sanguínea
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Guanilil Ciclase Solúvel
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Oxindóis
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Anti-Hipertensivos
Limite:
Animals
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article