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Medline ® Abstract for Reference 23

of 'Idiopathic edema'

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Effect of the angiotensin converting enzyme inhibitor, captopril (SQ14,225), on orthostatic sodium and water retention in patients with idiopathic edema.
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Suzuki H, Fujimaki M, Nakane H, Saito I, Takeshita E, Saruta T
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Nephron. 1985;39(3):244.
 
Captopril (SQ14,225), an orally administered angiotensin converting enzyme inhibitor, was given to 8 patients with idiopathic edema, in order to study the role of the renin-angiotensin-aldosterone system in orthostatic sodium and water retention. Compared to 5 normal subjects, patients with idiopathic edema showed significantly greater reduction in water and sodium excretion, and greater increment in plasma aldosterone and plasma renin activity, in the upright posture. Captopril significantly restored water and sodium excretion, attenuated the increment in plasma aldosterone, and enhanced the rise in plasma renin activity in patients with idiopathic edema. The effects of captopril on these variables were not remarkable in normal subjects. These results suggest that an enhanced response of the renin-angiotensin-aldosterone system to standing plays an important role in the pathophysiology of idiopathic edema.
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PMID