The Effects of Adiponectin and Adiponectin Receptor 1 Levels on Macrovascular Complications Among Patients with Type 2 Diabetes Mellitus

Background/aims: The present study aimed to investigate the serum levels of adiponectin (APN) and adiponectin receptor 1 (AdipoR1) in patients with type 2 diabetes mellitus (T2DM) combined with macrovascular complications (MVC), as well as their correlation with clinical parameters.

Methods: A total of 60 T2DM patients were divided into 2 groups according to the presence of MVC: T2DM + MVC group (n=30) and T2DM group (n=30). Additionally, 30 healthy people were selected as control group (NC group). Clinical data and biological parameters were detected and recorded. T test was performed to compare the differences between two groups, and the results were corrected using Bonferroni method. Meanwhile, the correlation analysis and multiple stepwise regression analysis were used to analyze the association of APN and AdipoR1 with clinical factors.

Results: The levels of APN and AdipoR1 were significantly decreased in T2DM group and T2DM + MVC group compared with NC group, with the lowest value in T2DM + MVC group (all P<0.01). Serum APN levels were positively correlated with FINS and TG (r = 0.412, 0.316, respectively; both P<0.05), and negatively correlated with SBP, DBP and LDL-C (r = -0.292, -0.383, -0.334, respectively; all P<0.05). Serum levels of AdipoR1 were positively correlated with APN (r = 0.726, P<0.01), and negatively correlated with BMI, SBP, DBP, FBG, TC and LDL-C (r = -0.440, -0.446, -0.374, -0.444, -0.344, -0.709, respectively; all P<0.01).

Conclusion: Serum levels of APN and AdipoR1 are significantly lower in T2DM group and T2DM + MVC group, showing lowest value in T2DM + MVC group. APN and AdipoR1 levels may influence glucose and lipid metabolism in T2DM patients.