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Contribution of Zinc Deficiency to Insulin Resistance in Patients with Primary Biliary Cirrhosis.

Summary of "Contribution of Zinc Deficiency to Insulin Resistance in Patients with Primary Biliary Cirrhosis."

The relationship between metabolic abnormalities of trace elements and insulin resistance has been established. Recent studies have revealed that insulin resistance is associated with autoimmune responses. The purpose of this study was to examine the correlation between zinc or copper metabolism and insulin resistance in patients with primary biliary cirrhosis (PBC). Sixteen patients with PBC were divided into two groups: early and advanced stage disease. The overall value of the homeostasis model assessment of insulin resistance (HOMA-IR) in patients with advanced stage PBC was significantly higher than that in patients with early stage PBC, although the mean value in advanced stage PBC was significantly lower than that in hepatitis C virus (HCV)-related liver cirrhosis. There was an inverse correlation between serum zinc concentrations and HOMA-IR values in patients with PBC, while we found no correlation between serum copper levels and HOMA-IR values. HOMA-IR values were inversely associated with peripheral platelet counts, indicating the relationship between insulin resistance and hepatic fibrosis. These results suggest that zinc deficiency plays important roles of insulin resistance and subsequent hepatic fibrosis in patients with PBC, although insulin resistance in advanced stage PBC was significantly milder than that in HCV-related liver cirrhosis.

Affiliation

Department of Integrated Medicine, Kagawa University School of Medicine, 1750-1, Ikenobe, Miki-Cho, Kita-Gun, Kagawa, 761-0793, Japan, thimoto@med.kagawa-u.ac.jp.

Journal Details

This article was published in the following journal.

Name: Biological trace element research
ISSN: 1559-0720
Pages:

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A syndrome with excessively high INSULIN levels in the BLOOD. It may cause HYPOGLYCEMIA. Etiology of hyperinsulinism varies, including hypersecretion of a beta cell tumor (INSULINOMA); autoantibodies against insulin (INSULIN ANTIBODIES); defective insulin receptor (INSULIN RESISTANCE); or overuse of exogenous insulin or HYPOGLYCEMIC AGENTS.

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A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.

THIAZOLES with two keto oxygens. Members are insulin-sensitizing agents which overcome INSULIN RESISTANCE by activation of the peroxisome proliferator activated receptor gamma (PPAR-gamma).

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