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Change of insulin sensitivity in hepatitis C patients with normal insulin sensitivity; a 5-year prospective follow-up study variation of insulin sensitivity in HCV patients

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Abstract Background: 

Hepatitis C virus (HCV) infection is associated with a high prevalence of diabetes mellitus (DM). Insulin resistance (IR) is known to play a crucial role in the development of DM in chronic hepatitis C (CHC) patients. We prospectively investigated changes of insulin sensitivity in CHC patients during a 5-year period and analysed the factors significantly associated with IR. Methods: 

Sixty-two CHC patients with normal insulin sensitivity (CHC group), and a healthy control group of 172 subjects matched by age, gender, body mass index and lifestyles were studied. We compared the initial baseline insulin sensitivity, metabolic parameters and incidence of IR at the end of the follow-up period between the two groups. The changes in insulin sensitivity, metabolic parameters and the development of IR were analysed as well as factors associated with the development of IR. Results: 

IR developed in 22.5% of 62 CHC patients and 5.2% of 172 normal individuals (P < 0.001). HCV infection per se and the genotype 1 were independent risk factors for the development of IR. The duration of infection ≥120 months, initial fasting glucose 90–100 mg/dL, fasting insulin ≥10 ┬ÁIU/mL and the homeostasis model assessment (HOMA-IR) 2.3–2.7 were significantly associated with the development of IR in the CHC group. Conclusion: 

HCV infection was an independent risk factor for the development of IR. All CHC patients, even those with normal insulin sensitivity, require careful monitoring for the development of IR.

Keywords: HCV infection; HOMA-IR; insulin resistance

Document Type: Research Article


Publication date: July 1, 2010


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