Abstract

Type 2 diabetes mellitus (T2DM) is a metabolic disorder in which ageing, altered lifestyle, genetic, and environmental factors contribute to producing insulin resistance in target tissues, leading to hyperglycaemia. Previous studies have reported lower levels of Interleukin-10 (IL-10), an anti-inflammatory cytokine in T2DM patients. However, the knowledge regarding its receptor (IL-10R) expression changes in T2DM is unknown. This study aimed to correlate levels of IL-10 with its receptor expression in newly diagnosed T2DM cases and compare the findings with that of a non-diabetic control group. 35 newly diagnosed T2DM and 35 non-diabetic controls were recruited after obtaining due informed consent. Venous blood was taken under aseptic conditions. Biochemical parameters were analyzed in an autoanalyzer. Serum levels of IL-10 were estimated using ELISA, and IL-10R expression was estimated using RT-PCR by TaqMan Advanced gene expression assay. Serum levels of IL-10 were significantly lowered in T2DM patients (10.93 (8.62) pg/ml) compared with non-diabetic controls (14.52 (9.71) pg/ml) (p < 0.015). IL-10R expression was significantly downregulated in T2DM patients with a fold change of 0.18 (p < 0.018). Our study suggests that the expression of IL-10R is downregulated along with low serum levels of IL-10 in newly diagnosed Type 2 diabetes mellitus patients.

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