Hee Su Park; Yoon Jung Kim; Soo Yoon Moon; Ji Young Woo; Jae Kyun Choi; Kyung Up Kim; Ju Ri Park; Ho Young Son; Doo-Man Kim

doi:10.4093/jkd.2015.16.4.315

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Park, Kim, Moon, Woo, Choi, Kim, Park, Son, and Kim: Resolution of Type 2 Diabetes Mellitus Following Interferon-α Therapy for Chronic Hepatitis C

Case Report

J Korean Diabetes 2015;16(4):315-322.

Published online: 10 January 2015

DOI: https://doi.org/10.4093/jkd.2015.16.4.315

Resolution of Type 2 Diabetes Mellitus Following Interferon-α Therapy for Chronic Hepatitis C

Hee Su Park, Yoon Jung Kim, Soo Yoon Moon, Ji Young Woo, Jae Kyun Choi, Kyung Up Kim, Ju Ri Park, Ho Young Son, Doo-Man Kim

Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea

Corresponding author: Doo-Man Kim Department of Internal Medicine, Kangdong Sacred Heart Hospital, 150 Seongan-ro, Gangdong-gu, Seoul 05355, Korea, E-mail: dm@hallym.or.kr

Received 19 May 2015 Revised 17 June 2015 Accepted 31 July 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Hepatitis C virus (HCV) mainly affects the liver, but several tissues outside the liver have also been reported to be involved. It has been hypothesized that diabetes could be one of these extrahepatic conditions attributable to HCV infection. The specific mechanisms by which HCV leads to type 2 diabetes are not fully understood, but it seems that an increase in insulin resistance associated with both steatosis and overproduction of proinflammatory cytokines could play a crucial role. We report a patient whose type 2 diabetes that was resolved following interferon-α (IFN-α) therapy for HCV. A 57-year-old man presented with fatigue, polyuria, and polydipsia. He was newly diagnosed as type 2 diabetes and chronic hepatitis C. He was started on subcutaneous insulin and IFN-α. After 24 weeks of treatment with IFN-α, the results of HCV polymerase chain reaction were negative, and his diabetes had resolved. Our case shows a resolution of diabetes after IFN-α therapy for chronic hepatitis C. Although it is unclear whether the resolution of diabetes in this case occurred as an effect of IFN-α or as a result of becoming HCV RNA-negative, our finding suggest roles of IFN-α and HCV infection in the pathogenesis of diabetes.

Keywords: Hepatitis C virus, Interferon-α, Type 2 diabetes mellitus

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