Nonalcoholic Steatohepatitis (NASH) Is Associated with a Decline in Pancreatic Beta Cell (β-Cell) Function

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• 作者：Mohammad S. Siddiqui ; Kai L. Cheang ; Velimir A. Luketic…
• 关键词：Nonalcoholic fatty liver disease ; Nonalcoholic steatohepatitis ; Pancreatic B cell function ; Insulin resistance
• 刊名：Digestive Diseases and Sciences
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：60
• 期：8
• 页码：2529-2537
• 全文大小：603 KB
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  17.Musso G, Gambino R, Cassader M. Lipoprotein metabolism mediates the association of MTP polymorphism with beta-cell dysfunction in healthy subjects and in nondiabetic normolipidemic patients with nonalcoholic steatohepatitis. J Nutr Biochem. 2010;21:834-40.PubMed View Article
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  22.Kleiner DE, Brunt EM, Van Natta M, et al. Design and validation
• 作者单位：Mohammad S. Siddiqui (1)
  Kai L. Cheang (2)
  Velimir A. Luketic (1)
  Sherry Boyett (1)
  Michael O. Idowu (3)
  Kavish Patidar (1)
  Puneet Puri (1)
  Scott Matherly (1)
  Richard T. Stravitz (1)
  Richard K. Sterling (1)
  Arun J. Sanyal (1)
  
  1. Division of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, Virginia Commonwealth University School of Medicine, MCV Box 980342, Richmond, VA, 23298-0342, USA
  2. Division of Endocrinology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
  3. Division of Surgical Pathology, Department of Pathology, Virginia Commonwealth University School of Medicine, Richmond, VA, 23298, USA
  
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Gastroenterology
  Hepatology
  Oncology
  Transplant Surgery
  Biochemistry
  
• 出版者：Springer Netherlands
• ISSN：1573-2568

文摘

Background Nonalcoholic fatty liver disease (NAFLD) represents a histological spectrum ranging from benign hepatic steatosis (NAFL) to nonalcoholic steatohepatitis (NASH). NAFLD is closely associated with insulin resistance (IR), and although the role of IR in NAFLD has been an area of intense investigation, there are limited data on pancreatic β-cell function. Aim To evaluate the pancreatic β-cell function in NAFLD using the homeostatic model assessment-β (HOMA-β) and β-cell index (BI). Methods HOMA-β was measured in ninety-nine non-diabetic subjects with histologically confirmed NAFLD and compared to lean (age- and gender-matched) and obese (age-, gender-, and BMI-matched) controls. Using the values from an oral glucose tolerance test, BI was compared in 31 non-diabetic, non-cirrhotic subjects with NASH and gender- and BMI-matched controls. Results The subjects with NAFLD had higher HOMA-β compared to both lean and obese controls (43.1 vs. 9 vs. 22.1 %, respectively, P < 0.05). HOMA-β was directly related to serum alkaline phosphate, total bilirubin, and weight and inversely related to age. There was no difference in HOMA-β between subjects with NAFL and NASH. Subjects with NASH had lower β-cell function as measured by a lower BI (2.09 ± 1.64 vs. 7.74 ± 25.12; P = 0.04). In patients with NASH, BI was inversely associated with fibrosis independent of age, BMI, and serum ALT levels. In contrast, HOMA-β was directly associated with fibrosis stage. Conclusion NASH is associated with strained pancreatic β-cell function in non-diabetic subjects. Future studies are necessary to evaluate the temporal relationship between β-cell function and hepatic histology.