Relationship between serum levels of fetuin-A with apo-A1, apo-B100, body composition and insulin resistance in patients with type 2 diabetes

BACKGROUND Some results exist on fetuin-A as marker for vascular disease in type 2diabetes. We examined the relationship between serum fetuin-A with some factors, in patients with type 2 diabetes mellitus (T2DM). METHODS From October 2012 to June 2013, a total of 131 T2DM patients were recruited and evaluated for various parameters including HOMA-IR, Apo-A1, Apo-B100, body fat percentage and waist circumference. Serum fetuin-A levels were measured by enzyme-linkedimmunosorbent assay (ELISA), and Serum glucose with a Cobas MIRA analyzer by enzymatic method. Apo-B100 and apo-A1 were measured by immunoturbidimetry with a Cobas MIRA analyzer. HOMA-IR was calculated by the following formula: [fasting insulin (uIU/mL) × fasting blood glucose (mmol/L)]/22.5. RESULTS The mean levels of HOMA-IR were significantly increased progressively across fetuin-A tertiles (p for trend=0.04) in women but not men. Fetuin-A had just a significant positive correlation with Apo- A1(r=0.22, p=0.02). CONCLUSION This present study showed that levels of serum fetuin-A are significantly associated with insulin resistance in women with T2DM.