Therefore, in the present study, enzyme-linked immunosorbent assay, TaqMan probe quantitative PCR, PCR-TaqMan technology, color Doppler and other methods were used to analyze the correlations among T2DM, adiponectin gene polymorphisms, acquired somatic mutation rates of mtDNA A3243G and carotid IMT in Korean and Han populations in the Yanbian region. Here, ADIPOQ is linked to type 2 diabetes mellitus.