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  • Title: [Effect of different amounts of dietary sodium on plasma atrial natriuretic peptide (ANP)in essential salt sensitive hypertension].
    Author: Widecka K, Celibała R, Gruszczyńska M, Goździk J, Ciechanowski K, Czekalski S.
    Journal: Pol Arch Med Wewn; 1993 Feb; 89(2):107-15. PubMed ID: 8389044.
    Abstract:
    The aim of the study was an evaluation of the effect of different dietary sodium intake on: blood pressure, plasma concentration of atrial natriuretic peptide (ANP), cyclic guanosine monophosphate (cGMP), aldosterone (ALDO) and plasma renin activity (PRA) in patients with primary sodium sensitive arterial hypertension class I acc. to WHO criteria. Thirteen patients, non treated, with sodium sensitive arterial hypertension aged 30 +/- 8 years participated in the study. Blood samples were taken three times: in 5th day of normal sodium intake (100-120 mmol Na per 24 h); in 5th day of low sodium diet (10-20 mmol Na per 24 h); in 5th day of high sodium diet (200-220 mmol Na per 24 h). During 24 hours before each blood sampling the urine was collected and sodium and potassium excretions were evaluated. Concentrations of ANP, cGMP, ALDO in plasma and PRA were determined by radioimmunoassays and serum sodium and potassium concentration by flame photometry. Significant (p < 0.05) diminution of blood pressure, plasma ANP and cGMP concentrations and the increase of plasma ALDO and PRA after sodium restriction when compared to normal sodium diet were found. High sodium diet resulted in significant increase of blood pressure, plasma ANP and cGMP concentrations to the values comparable with these on normal sodium diet. On the contrary PRA and plasma ALDO concentration decreased (p < 0.001) below the values during normal sodium diet. Urinary sodium excretion corresponded to dietary sodium intake during all diets.(ABSTRACT TRUNCATED AT 250 WORDS)
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