Frequency of asymptomatic hyperuricemia among adults with type 1 and type 2 diabetes
Keywords:uric acid, purine metabolism, gout, asymptomatic hyperuricemia, diabetes mellitus
Background. The purpose is to study the frequency of asymptomatic hyperuricemia (HU) in patients with type 1 and 2 diabetes in the Ukrainian population on the example of residents of Kharkiv and Kharkiv region. Materials and methods. Three hundred and sixteen individuals with diabetes mellitus were examined: 81 — with type 1 diabetes (group 1), 150 — with type 2 diabetes (group 2) and 85 type 2 diabetes patients with absolute insulin dependence (group 3). Assessment of the state of purine metabolism was performed by determining the concentration of uric acid in the blood serum and urine. Uric acid levels were evaluated by colorimetric method using a set of reagents SpinLab, UricasePOD (Ukraine). To assess the impact of patient’s age, patient’s age at the time of disease onset, disease duration and body mass index, the groups were divided into two subgroups (A and B, respectively) depending on the level of uricemia and uricosuria. Subgroup 1A consisted of 60 patients with type 1 diabetes without hyperuricemia and/or hyperuricosuria (HUC), subgroup 1B — 21 people with HU and/or HUC; subgroup 2A — 76 individuals without HU and/or HUC, subgroup 2B — 74 patients with HU and/or HUC, subgroup 3A — 57 people without HU and/or HUC, subgroup 3B — 28 individuals with HU and/or HUC. Results. The frequency of purine exchange disorders among adults with type 1 and 2 diabetes in Kharkiv region is 38.9 %. The highest frequency of purine exchange disorders is observed in patients with type 2 diabetes (49.3 %). The age the of patient during the study and at the time of manifestation of diabetes mellitus, the duration of the disease and the body mass index are not determining factors that affect the formation of disorders of purine metabolism in people with type 1 and 2 diabetes; the age and duration of the disease are risk factors for violations of purine metabolism in individuals with type 2 diabetes with absolute insulin dependence. Conclusions. Asymptomatic hyperuricemia was diagnosed in 27.8 % of the examined patients with diabetes mellitus. The frequency of asymptomatic hyperuricemia is significantly higher in individuals with type 2 diabetes than in those with type 1 diabetes (3.48 and 24.4 %, respectively); absolute insulin dependence in patients with type 2 diabetes does not affect the frequency of asymptomatic hyperuricemia.
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