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  • Title: Evidence for an angiotensinogenic mechanism of the hypertension of Cushing's syndrome.
    Author: Dalakos TG, Elias AN, Anderson GH, Streeten DH, Schroeder ET.
    Journal: J Clin Endocrinol Metab; 1978 Jan; 46(1):114-8. PubMed ID: 752014.
    Abstract:
    The blood pressure response to the angiotensin II analog 1-sar-8-ala-angiotensin II, or saralasin, was studied in five patients with clinical and laboratory evidence of Cushing's syndrome. Plasma renin activity, plasma renin substrate, and plasma renin concentration were measured in all five patients. The renin system and the response to saralasin were measured after furosemide administration. Plasma aldosterone was measured after infusion of 2 liters normal saline. All patients studied showed a hypotensive response to saralasin, the mean BP changing from 163/108 mm Hg to 130/85 mm Hg (P less than 0.02). There was a significant elevation of the plasma renin activity and plasma renin concentration in the patients compared to normal subjects, although plasma renin substrate was not significantly different from normal values. There was normal suppression of plasma aldosterone after the infusion of 0.9% saline. The findings indicate that the hypertension of these patients with Cushing's syndrome was mediated in large part by angiotensin II.
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