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  • Title: [Value of oxypurines and uric acid in plasma, renal excretion of oxypurines and uric acid as well as plasma adenosine deaminase and AMP deaminase activity in patients with essential hypertension].
    Author: Tykarski A, Głuszek J, Banaszak F.
    Journal: Pol Arch Med Wewn; 1993 Mar; 89(3):223-9. PubMed ID: 8327372.
    Abstract:
    Serum uric acid and oxypurines (hypoxanthine and xanthine) renal excretion of uric acid and oxypurines as well as plasma adenosine deaminase activity and AMP deaminase activity were studied in 18 patients with essential hypertension and in 17 healthy subjects. The aim of the study was to evaluate uric acid production rate in essential hypertension. Serum uric acid was significantly higher (7.04 +/- 2.03 mg% = 370.5 +/- 106 mumol/l; p < 0.01) in essential hypertension in comparison with control group (5.2 +/- 1.0 mg% = 275.0 +/- 51.9 mumol/l) and plasma oxypurines were increased insignificantly. Impairment of fractional excretion of uric acid (p < 0.05) was found in patients with essential hypertension. Plasma adenosine deaminase activity and plasma AMP deaminase activity did not differ in the studied groups. Increased production of uric acid does not contribute the incidence of hyperuricemia in essential hypertension. The results suggest that tubular defect of oxypurines excretion similar to that of uric acid exists in patients with essential hypertension.
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