The multifaceted associations of hepatobiliary disease and diabetes.

OBJECTIVE

To investigate the association of diabetes and hepatobiliary disease.

METHODS

We performed a MEDLINE search of the English-language literature published between January 1980 and January 2007 for studies in which diabetes was associated with liver diseases.

RESULTS

Through its association with the insulin resistance syndrome, type 2 diabetes is associated with nonalcoholic fatty liver disease, nonalcoholic steatohepatitis (NASH), NASH-cirrhosis, and NASH-cirrhosis-related hepatocellular carcinoma. Because of the association with insulin resistance, insulin sensitizers may slow or even arrest the progress of these diseases. Type 2 but not type 1 diabetes is associated with hepatitis C virus but not hepatitis B viral infection. This association is likely due to hepatitis C viral infection of the pancreatic beta-cells. Early detection and antiviral therapy can decelerate the development of diabetes. Type 1 diabetes is associated with hemochromatosis and autoimmune hepatitis. Because of the presence of autonomic neuropathy, cholelithiasis but not cholecystitis is more common in patients with diabetes than in the general population. Therefore, asymptomatic cholelithiasis in patients with diabetes no longer warrants a cholecystectomy. In patients with advanced liver disease of any cause, insulin resistance and diabetes have an increased frequency of occurrence and can be reversed with liver transplantation. Rarely, medications used to treat type 2 diabetes have been associated with drug-induced hepatitis.

CONCLUSION

The prevalence of hepatobiliary diseases is increased in patients with diabetes. Early recognition and treatment of these conditions can prevent, stabilize, or even reverse hepatic damage and prevent the development of hepatic carcinoma and liver failure.