Association of interaction between urinary glucose excretion and body mass index on serum uric acid in type 2 diabetes mellitus / 中华内分泌代谢杂志

ABSTRACT

Objective:To investigate the relationship between urinary glucose excretion, body mass index, and serum uric acid in type 2 diabetes mellitus, and to evaluate the association of interaction between uric glucose and body mass index on the risk of hyperuricemia.Methods:A total of 867 hospitalized patients with type 2 diabetes mellitus were included in this study. The height, weight, blood pressure and other general conditions were measured. 24-hour urine glucose quantification, glycolipid metabolism, and serum uric acid were collected. Multivariate linear regression analysis and multivariate logistic regression analysis were performed to determine the association of body mass index and urinary glucose with hyperuricemia.Results:After adjusting for age, sex, course of disease, blood pressure, HbA 1C, insulin, homeostasis model assessment for insulin resistance, fasting plasma glucose, 2 h postprandial blood glucose, total cholesterol, triglyceride, high density lipoprotein-cholesterol, low density lipoprotein-cholesterol, creatinine, and glomerular filtration rate, body mass index was positively associated with serum uric acid( β=4.281, 95% CI 2.645-5.917, P<0.001), and 24-hour urine glucose was negatively associated with serum uric acid( β=-0.435, 95% CI -0.708--0.162, P=0.002). Body mass index is an independent risk factor of hyperuricemia( P<0.01). There was a significant interaction between urine glucose and body mass index(interaction P<0.05). In the low urine glucose group, obese patients displayed odds ratio of 2.203 for hyperuricemia compared with non-obese patients, whereas the odds ratio was not significant in the high urine glucose group.The associations between body mass index and hyperuricemia were stronger in participants with low urine glucose than in those with high urine glucose. Conclusion:Urinary glucose excretion can weaken the positive correlation between body mass index and serum uric acid, suggesting that promoting urinary glucose excretion may be an effective strategy to control serum uric acid levels in type 2 diabetes mellitus, especially in obese patients.