Angiotensin II causes vasoconstriction ... antagonize beta-1 and beta-2 receptors — the usual targets of the SNS, epinephrine and norepinephrine. Chronically increased SNS activity has ...
Using a new plethysmographic technique to measure peripheral arterial tone (PAT), we report here that REM sleep in humans is associated with considerable peripheral vasoconstriction. The apparatus ...
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