The ionic composition of aortic smooth muscle from A.S. hypertensive rats

摘要

The Na⁺, K⁺ and Ca²⁺ content of plasma and aortic vascular smooth muscle from normotensive and A.S.-hypertensive rats have been compared. There was no significant difference in the plasma concentrations of Na⁺, K⁺ and Ca²⁺, or the Na⁺, K⁺ and water content or ³H-inulin space of aortic tissue in the two groups.There was a marked increase in the amount of Ca²⁺ in the aortae taken from the hypertensive animals as compared with the normotensive animals (P<0·01).