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[Main causes of hyperuricemia in diabetes mellitus]
Aim:
Investigation of hyperuricemia (HU) causes in diabetes mellitus (DM).
Materials And Methods:
Purin, lipid and carbohydrate metabolisms, renal excretion of uric acid (UA) were examined in 535 patients with DM. Non-insulin-dependent DM (NIDDM) and insulin-dependent DM (IDDM) were diagnosed in 369 and 166 patients, respectively.
Results:
Hyperglycemia and glucosuria in DM enhance renal excretion of UA. However, HU in DM occurs significantly more frequently than in the population (22.5 +/- 3.0% in IDDM and 29.9 +/- 2.5% of cases in NIDDM).
Conclusion:
In NIDDM, HU genesis is strongly related with renal lesions. In IDDM, HU genesis is associated with metabolic factors (high activity of xantinoxidase, lipid peroxidation, obesity). However, combination of factors is, as a rule, involved in HU development: renal dysfunction and hyperproduction of UA.
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