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  • Title: Changes of serum omentin-1 levels in normal subjects, type 2 diabetes and type 2 diabetes with overweight and obesity in Chinese adults.
    Author: Zhang Q, Zhu L, Zheng M, Fan C, Li Y, Zhang D, He Y, Yang H.
    Journal: Ann Endocrinol (Paris); 2014 Jul; 75(3):171-5. PubMed ID: 24997770.
    Abstract:
    PURPOSE: Omentin-1 has been identified as interesting novel adipokines that may modulate insulin action. Its exact biological function is unclear. The aim of this study is to assay the levels of serum omentin-1 in normal subjects and type 2 diabetes mellitus (T2DM) with normal weight, overweight and obesity and to analyze the relationship between serum omentin-1 levels with body mass index (BMI), waist to hip ratio (WHR), glycosylated hemoglobin (HbA1c), plasma glucose, insulin resistance index (HOMA-IR) and serum lipid levels. METHODS: There are eighty newly diagnosed type 2 diabetes patients, thirty-five type 2 diabetes patients with normal weight, twenty-nine type 2 diabetes patients with overweight, sixteen type 2 diabetes patients with obesity, and forty healthy control subjects were enrolled in this study. The levels of plasma glucose at fasting and 2-hour postprandial blood glucose and fasting serum levels of insulin, omentin-1and HbA1c were measured. HOMA-IR was calculated. RESULTS: Serum omentin-1 levels were found to be significantly decreased in type 2 diabetes patients with normal weight (821.16 ± 312.50 ng/L), in type 2 diabetes patients with overweight (748.00±322.51 ng/L), and in type 2 diabetes patients with obesity (530.44±357.35 ng/L) compared with healthy control subjects (994.71±435.90 ng/L) at P<0.05. The level of serum omentin-1 was negatively correlated to BMI, HOMA-IR, WHR, fasting insulin (FINS), fasting plasma glucose (FPG), 2-hour postprandial blood glucose (2HPG), triglycerides (TG), and positively correlated to high-density lipoprotein (HDL). BMI was independent related factor that influenced the levels of serum omentin-1. CONCLUSION: Decreased omentin-1 levels may contribute to the development of insulin resistance, T2DM and particularly to obesity in Chinese adults, however, its role in these diseases needs to be fully elucidated.
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