Association of plasma omentin-1 level with insulin resistance in chronic kidney disease patients

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Abstract

Introduction
The early prediction and prevention of cardiovascular disease risk factors is highly important in chronic kidney disease (CKD) patients. The plasma level of omentin was found to be associated with different disorders such as insulin resistance, diabetes mellitus, obesity, endothelial dysfunction, and atherosclerosis. The aim of the study was to clarify the influence of changes in levels of circulating omentin-1 on insulin resistance in CKD patients with and without type 2 diabetes mellitus.
Participants and methods
Seventy-eight patients were enrolled in this cross-sectional study: 23 patients with CKD on conservative treatment, 35 patients on maintenance hemodialysis, and 20 healthy volunteers. Serum concentrations of omentin-1 were determined with an enzyme-linked immunosorbent assay kit.
Results
Significant difference in plasma omentin-1 level was noticed between diabetic patients and nondiabetic patients in both the predialysis group and the hemodialysis (HD) group. There was also a significant difference in plasma omentin-1 level between nondiabetic patients in the predialysis group and the HD group and between diabetic patients in the predialysis group and hemodialysis group. There were significant negative correlation between plasma Omentin-1 level (ng/ml), fasting insulin level (mIU/ml), HOMA-IR and eGFR (ml/min/1.73m) while significant positive correlation with IL-6 (pg/ml) and hsCRP (mg/l).
Conclusion
Plasma omentin-1 concentration was higher in CKD patients. In addition, there was an association between omentin-1 and insulin resistance in hemodialysis patients, which may be considered a cardiovascular risk factor in CKD patients.

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