Sarcopenia is an independent risk factor for non-alcoholic steatohepatitis and significant fibrosis

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• 作者：Bo Kyung Koo¹ ; Donghee Kim² ; ^{messmd@chol.com} ; Sae Kyung Joo³ ; Jung Ho Kim⁴ ; Mee Soo Chang⁴ ; Byeong Gwan Kim³ ; Kook Lae Lee³ ; Won Kim³ ; ^{drwon1@snu.ac.kr}
• 关键词：Hepatic steatosis ; Non-alcoholic fatty liver disease ; Non-alcoholic steatohepatitis ; Appendicular skeletal muscle mass ; Sarcopenia ; Insulin resistance ; Fibrosis ; Body weight ; Diabetes
• 刊名：Journal of Hepatology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：66
• 期：1
• 页码：123-131
• 全文大小：954 K
• 卷排序：66

文摘

We explored whether sarcopenia is associated with the histological severity of non-alcoholic fatty liver disease (NAFLD), especially non-alcoholic steatohepatitis (NASH) and significant fibrosis.MethodsIn a biopsy-proven NAFLD cohort, the appendicular skeletal muscle mass (ASM) was measured. Sarcopenia was defined as a ASM/body weight (ASM%) value beyond two standard deviations below the mean for healthy young adults.ResultsAmong the entire set of 309 subjects, the prevalence of sarcopenia in subjects without NAFLD, with non-alcoholic fatty liver (NAFL), and with NASH were 8.7%, 17.9%, and 35.0%, respectively (p <0.001). ASM% was inversely correlated with the severity of fibrosis (p <0.001), and the prevalence of significant fibrosis (⩾F2) was higher in subjects with sarcopenia than in those without (45.7% vs. 24.7%; p <0.001). A crude analysis revealed that sarcopenia was associated with NAFLD (odds ratio [OR], 3.82; 95% confidence interval [CI], 1.58–9.25), which became insignificant after adjustment for body mass index (BMI), diabetes, and hypertension. Among NAFLD subjects, subjects with sarcopenia were more likely to have NASH than those without sarcopenia through a multivariate analysis adjusted for age, gender, BMI, hypertension, diabetes, and smoking status (OR, 2.28; 95% CI, 1.21–4.30), and this finding was obtained even after adjustment for insulin resistance (OR, 2.30; 95% CI, 1.08–4.93). Sarcopenia was also associated with significant fibrosis independent of BMI and insulin resistance (OR, 2.05; 95% CI, 1.01–4.16).ConclusionsIn this large biopsy-proven NAFLD cohort, sarcopenia was significantly associated with NASH and significant fibrosis.Lay summaryLow muscle mass was found to be associated with histological severity in non-alcoholic fatty liver disease, and sarcopenia was significantly associated with non-alcoholic steatohepatitis and significant fibrosis, independent of obesity, inflammation, and insulin resistance.Clinical trial number: NCT 02206841.