Hyperglycemia Affects the Expression of Inflammatory Genes in Peripheral Blood Mononuclear Cells of Patients with Type 2 Diabetes
Abstract
Innate immune system dysregulation and chronic low-grade inflammation are associated with the pathogenesis of type 2 diabetes (T2D). The aim of this study was to investigate the effect of hyperglycemia on mRNA expression of four inflammatory genes in peripheral blood mononuclear cells (PBMCs) of pre-diabetic and diabetic individuals. In a case-control study, quantitative real-time PCR was used to analyze changes in IL-1β, IL1R1, IL-6, and IL6ST gene expression in PBMCs of 30 T2D patients with high blood glucose levels, 24 diabetic and nondiabetic individuals with moderately high blood glucose levels and 30 controls with normal blood glucose levels. In T2D patients with high blood glucose, IL-1β expression showed a 2.69-fold increase (p = 0.0380), while IL-6 expression levels were 3.45 fold lower (p = 0.0045) versus control subjects. Moreover, compared with control group the expression of IL1R1 and IL-6 genes both were downregulated in individuals with moderately high blood glucose levels by 2.38 (p = 0.0365) and 4.34 fold (p = 0.0027), respectively. In addition, hemoglobin A1C (A1C) levels were positively correlated with IL-1β expression and fasting plasma glucose (FPG) levels showed a positive correlation with IL-1β and a nega...Continue Reading
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