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  • Title: Plasma renin activity in diabetic patients.
    Author: Koev D, Sirakova V.
    Journal: Endokrinologie; 1979; 74(2):199-206. PubMed ID: 119636.
    Abstract:
    Plasma renin activity (PRA) in 40 diabetic patients and 42 healthy controls was investigated using the method of Pickens in modification of Serebrovskaja et al. (1967). PRA was slightly lower in the whole group of diabetes but the difference was not significant. The subgroup of 20 maturity-onset diabetics had significantly lower PRA in comparison with 22 controls of similar age, while PRA in juvenile diabetics did not differ significantly from matched controls. In patients without clinical signs and symptoms of microangiopathy PRA was as high as in the controls. In diabetics with microangiopathy PRA was significantly lower. PRA was also lower in patients with longer duration of the disease. The stimulation of juxtaglomerular apparatus with sodium free diet and diuretic drugs resulted in an increase of PRA both in controls and diabetics. This suggests a functional depression of PRA in diabetic patients. In diabetics with ketoacidosis PRA was higher than in control subjects and decreased after disappearance of ketoacidosis. A high level was recorded in a patient with hyperosmolar coma and a very low level in a patient with polyneuropathy and severe orthostatic hypotension. The possible mechanisms involved in the changes of PRA in diabetic patients are discussed.
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