Relationship of Serum Betatrophin with Nonalcoholic Fatty Liver in a Chinese Population

OBJECTIVE: This study aimed to investigate the association of serum betatrophin with the status and progression of nonalcoholic fatty liver disease (NAFLD). METHODS: A total of 249 subjects who received ultrasonic examination of liver fat content (LFC) were recruited. Anthropometric and biochemical examinations were performed. Serum betatrophin was measured by ELISA. RESULTS: Compared with control group, serum betatrophin significantly increased in NAFLD group (P < 0.05). There was significant difference in serum betatrophin among control, low liver fat content (LLFC), and high liver fat content (HLFC) groups (P < 0.01). After adjustment for gender, age, BMI, FPG and HbA1c, the betatrophin positively correlated with LFC (r = 0.185, P < 0.01) and TG (r = 0.195, P < 0.01). Stepwise multiple regression analysis indicated serum betatrophin was independently related to LFC (P < 0.05). Multivariate logistic regression analysis revealed subjects in the highest tertile of serum betatrophin had higher odds of having NAFLD after adjustment for traditional NAFLD risk factors (OR = 2.88, 95%CI: 1.15–7.19) (P<0.05). CONCLUSION: Serum betatrophin is an independent risk factor for NAFLD and potential non-invasive marker for its progression. Serum betatrophin may be helpful for the early diagnosis of NAFLD and improvement of its prognosis.