Serum uric acid concentration is associated with hyperhomocysteinemia in hypertensive Chinese adults

Purpose. This study is to investigate the correlation between serum uric acid levels and hyperhomocysteinemia Chinese adult patients with hypertension. Methods. We enrolled 981 hypertensive patients, including unmedicated hypertensives, in our study. There were 453 patients with hyperhomocysteinemia (hyperhomocysteinemia hypertension group) and 528 without it (ordinary hypertension group). We collected histories of coronary heart disease, diabetes, and smoking and tested patients' BMI, blood pressure, fasting serum uric acid, serum total cholesterol, triglycerides, low-density lipoprotein cholesterol, serum creatinine, and homocysteine. Subjects were stratified into four groups according to their serum uric acid quartiles: Q1 group, 249 cases (<= 268 mu mol/L); Q2 group, 245 cases (269-322 mu mol/L); Q3 group, 244 cases (323-378 mu mol/L); and Q4 group, 243 cases (>= 379 mu mol/L). We employ logistic regression analysis to investigate the relationship between serum uric acid levels and the risk of hyperhomocysteinemia in patients with hypertension. Results. We find that there were significant differences in gender distribution, serum uric acid, BMI, serum creatinine, total cholesterol, and diastolic blood pressure between the two groups (P < 0.05). The prevalence of hyperhomocysteinemia in groups Q1 through Q4 was 26.91% (67/249), 45.31% (111/245), 47.01% (117/244), and 65.02% (158/243), respectively, after adjusting for relevant factors, we find that the risk of hyperhomocysteinemia in the Q4 group was significantly higher than that in the Q1 group (odds ratio = 3.00, 95% confidence interval: 1.83-4.93). Conclusion. We find evidence that an elevated serum uric acid level is an independent indicator for hyperhomocysteinemia in patients with hypertension.