Key result
Renal hypertension heightens arterial sensitivity to serotonin and enhances norepinephrine-induced vasoconstriction.
Why the study?
Alterations in the vascular interactions between serotonin and norepinephrine in renal hypertension were not well characterized.
Population
Helical strips of femoral artery from two-kidney, one clip hypertensive and control rabbits
Comparison
Vascular responses to serotonin and norepinephrine in hypertensive versus control rabbit arteries
Design
Ex vivo muscle bath isometric force recording study
Authors
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Hypothesis-generating for 5-HT-NE vascular interactions in hypertension; leaves open clinical relevance pending human studies.
Renal hypertension alters vascular smooth muscle reactivity, enhancing the potentiating effect of serotonin on norepinephrine-induced vasoconstriction.
Pott et al. (1986) studied Renal hypertension. Two-kidney, one clip (2K1C) renal hypertension vs. Normotensive control rabbits was evaluated on Vascular responses to norepinephrine and serotonin (isometric force recording). Arterial strips from 2K1C renal hypertensive rabbits showed increased sensitivity to serotonin and greater serotonin-induced potentiation of norepinephrine responses compared to controls.