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[Changes in the indicators of the renin-angiotensin-aldosterone system, kallikrein-kinin system and arterial blood pressure in elderly patients with essential hypertension treated with captopril].

The magnitude of captopril hypotensive effect, and variation in renin-angiotensin-aldosterone and kallikrein-kinin parameters were examined in patients with advanced essential hypertension in the presence of normal and low plasma renin activity. The demonstrated differences in the patterns of arterial BP, renin-angiotensin and kallikrein-kinin change have suggested that low-renin essential hypertension is resistant to captopril in most cases.