Circulating Endothelial Microparticles and Correlation of Serum 1,25-Dihydroxyvitamin D with Adiponectin, Nonesterified Fatty Acids, and Glycerol from Middle-Aged Men in China

The aim of the present study is (1) to determine the correlation between circulating 1,25-dihydroxyvitamin D [25(OH)D] and adiponectin, nonesterified fatty acids (NEFAs), and glycerol and (2) to determine the alterations in circulating endothelial microparticles (EMPs) in Chinese male subjects with increased body mass index (BMI). A total of 45 male adults were enrolled with varied BMI [i.e., lean, overweight (OW), and obese (OB), N = 15 per group]. Blood samples were collected under overnight fasting condition, and plasma was isolated for the measurement of endothelial microparticles (EMPs), total and high-molecular weight (HMW) adiponectin, 25(OH)D, nonesterified fatty acids (NEFAs), and glycerol. Circulating 25(OH)D levels were inversely associated with total adiponectin, NEFA, and glycerol levels. There is no difference for CD62E+ or CD31+/CD42b− EMPs among 3 groups. In Chinese male adults with varied BMI, an inverse correlation existed between 25(OH)D levels and total adiponectin, NEFA, and glycerol levels; and there is no significant difference for CD62E+ or CD31+/CD42b− EMPs among lean, overweight, and obese subjects.