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News in Physiological Sciences, Vol 7, 120-123, Copyright © 1992 by International Union of Physiological Sciences
ARTICLES |
TF Luscher and Y Dohi
In resistance arteries, endothelium-derived nitric oxide inhibits vasoconstrictors;this and endothelium-dependent relaxations to acetylcholine are blunted in hypertension. The sensitivity of hypertensive resistance arteries with endothelium to intraluminal endothelin-1 is normal but is reduced without endothelium. Thus hypertension impairs endothelial regulation of the resistance circulation.
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