Abstract
Hyperuricemia is significantly associated with and independently predicts the risk for non-alcoholic fatty liver disease (NAFLD). The aim of the present study was to examine the association of serum uric acid (SUA) levels with liver histology in patients with biopsy-proven NAFLD. Data were collected from 158 adults aged >18 years, and diagnosed with biopsy-proven NAFLD. The differences in liver histology were assessed between hyperuricemic and normal SUA groups with NAFLD to determine the possible risk factors. The SUA level was closely associated with the degree of steatosis (correlation coefficient 0.177, P=0.027). A higher proportion of patients with hyperuricemia showed increased severity of lobular inflammation (lobular inflammation score ≥2) compared with patients exhibiting normal SUA (75 vs. 52.7%; χ2=8.548, P=0.003). Hyperuricemic groups had higher non-alcoholic steatosis (≥5) compared to the normal SUA groups with NAFLD (48.8 vs. 31.1%; χ2=5.131, P=0.024). Hyperuricemia was independently associated with advanced lobular inflammation (odds ratio, 2.79; 95% confidence interval, 1.250-6.257; P=0.012) using a logistic regression model controlling for ferritin, serum alanine aminotransferase and aspartate aminotransferase. In conclusion, hyperuricemia is associated with histologically severe NAFLD. Hyperuricemia was independently associated with greater odds of advanced lobular inflammation of NAFLD.
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