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Abstract
Adiponectin mRNA and plasma concentrations were reduced in obesity. Exercise training may reduce the adipose tissue (AT), although it is not well known, whether exercise – induced change in AT, increases adiponectin mRNA expression and plasma concentrations or not. Therefore, the purpose of this study was to examine the effects of short-term lifestyle activity modification (LAM) on adiponectin mRNA and plasma concentrations. Sixteen obese and overweight middle-aged men (age, 35–50 years) with type 2 diabetes participated in this study. The subjects were randomly assigned to LAM group (n=8) or control group (n=8). The subjects in LAM group walked two miles in 30 min on a treadmill on 4 days per week for 12 weeks according to the guidelines of the Centers for Disease Control and Prevention and American College of Sports Medicine. The results showed that body mass, body mass index, central visceral adipose tissue and subcutaneous adipose tissue volume and hip and thigh subcutaneous adipose tissue (hip and thigh SAT) volume were decreased in the LAM group compared to the control group (P<0.05). Adiponectin mRNA in abdominal and gluteal subcutaneous AT were increased significantly in the LAM group compared to the control group (P<0.05), while plasma adiponectin concentrations, hs-CRP and insulin resistance did not change significantly. In conclusion, adiponectin mRNA levels increase after 12 weeks of LAM; however, plasma adiponectin levels were not affected by this protocol in obese and overweight middle-aged men with type 2 diabetes.