[Peripheral blood renin-angiotensin system indices and the kallikrein-kinin system of the kidneys in hypertension].

In III patients with hypertension the activity of renin in blood plasma and excretion of kallikrein and kinins in urine and in 53 the activity of carboxycatepsin were determined. Hypertensive patients showed enhanced renin activity and excretion of kallikrein and kinins with urine. A more significant rise of these figures is noted during the early stage of illness, with labile arterial hypertension. In stable hypertension renin activity is lower than in the labile form, however this index remained higher than in the control group. Activity of kallikrein-kinin system and of carboxykatepsin in stable hypertension drops below normal.