Effect of Mutations in T2DM Susceptibility Genes on the Expression of Susceptibility Genes in Patients With T2DM and Controls

The primary objective of this study was to investigate the changes of the expression of T2DM susceptible genes (NOS1AP, KCNQ1, TCF7L2, WSF1, GLP-1R, etc.) in participants (newly diagnosed T2DM patients and controls) after gene mutation. Secondly, the expression differences of T2DM susceptible genes in T2DM patients with different genotypes were compared, and the relationship between the expression differences and clinicopathological characteristics of T2DM patients was analyzed. Participants (newly diagnosed T2DM patients and healthy subjects) were screened from the department of endocrinology and health management center, whose fresh peripheral blood were collected. The normal pancreatic tissues or adjacent tissues of pancreatic cancer were collected in the department of general surgery. The DNA genome was extracted for genotyping, and then the expression levels of T2DM related susceptibility genes under different genotypes were detected by ELISA kits, PCR, WB,HE staining, IHC staining, ect. The basic information of T2DM patients was collected, including demographic characteristics, physiological and biochemical data.Then investigators further compared the differences in the expression of susceptible genes between newly diagnosed T2DM patients and controls.