Wall thickness and constrictive responses of the caudal artery in rats with renovascular hypertension

In rats with hypertension modeled by the one kidney-one clamp method, constrictory responses of the isolated caudal artery to norepinephrine differed under various perfusion conditions. Vascular reactions in hypertensive rats were more potent at a constant flow rate, and less potent at a constant pr...

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Veröffentlicht in:Bulletin of experimental biology and medicine 2000-08, Vol.130 (8), p.749-751
Hauptverfasser: Vlasova, M A, Borovik, A S, Timin, E N, Chernyaev, A L, Mikhaleva, L M, Tarasova, O S, Rodionov, I M
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container_issue 8
container_start_page 749
container_title Bulletin of experimental biology and medicine
container_volume 130
creator Vlasova, M A
Borovik, A S
Timin, E N
Chernyaev, A L
Mikhaleva, L M
Tarasova, O S
Rodionov, I M
description In rats with hypertension modeled by the one kidney-one clamp method, constrictory responses of the isolated caudal artery to norepinephrine differed under various perfusion conditions. Vascular reactions in hypertensive rats were more potent at a constant flow rate, and less potent at a constant pressure compared to those in normotensive rats. Previous experiments demonstrated similar changes in constrictory responses of the caudal artery in spontaneously hypertensive rats. It is assumed that these peculiarities of the vascular reactivity during hypertension are determined by thickening of the smooth muscle layer of the vascular wall.
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subjects Animals
Hypertension
Hypertension, Renovascular - pathology
Hypertension, Renovascular - physiopathology
In Vitro Techniques
Kidneys
Male
Muscle, Smooth, Vascular - pathology
Norepinephrine
Norepinephrine - pharmacology
Perfusion
Rats
Rats, Wistar
Renal Artery - drug effects
Renal Artery - pathology
Renal Artery - physiopathology
Smooth muscle
Vascular Resistance - drug effects
Vasoconstriction - drug effects
Vasoconstriction - physiology
title Wall thickness and constrictive responses of the caudal artery in rats with renovascular hypertension
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