Effect of irbesartan on oxidative stress and serum inflammatory factors in renal tissues of type 2 diabetic rats

Abstract

Objective: To determine the effect of irbesartan on the activity of oxidative stress parameters of glutathione (GSH), superoxide enzyme (SOD) and malondialdehyde (MDA), and concentration of serum inflammatory factors of macrophage chemokine-1 (MCP-1), intercellular adhesion molecule-1 (ICAM-1) and tumor necrosis factor alpha (TNF-α) in the renal tissue of type 2 diabetic rats. Study Design: An experimental study. Place and Duration of Study: The First People's Hospital of Ningyang County, Shandong Province, China, from April 2017 to March 2018. Methodology: Thirty healthy male Sprague Dawley rats were randomly divided into a normal control group, a diabetic model group, and an irbesartan treatment group, 10 in each group. Rat models of type 2 diabetes were prepared by high-sugar high-fat diet with low-dose streptozotocin injection. Changes in blood glucose and lipids, serum GSH, SOD, MDA, MCP-1, ICAM-1, and TNF-α levels were determined. Results: Levels of FBG, TC, TG and LDL, activity of GSH, SOD and MDA, and levels of serum MCP-1, ICAM-1 and TNF-α among three groups were statistically significant (all p < 0.001). Compared with the diabetic model group, FBG, TC, TG and LDL levels, MDA activity, MCP-1, ICAM-1 and TNF-α levels all decreased in rats of the irbesartan treatment group (all p <0.001), and both GSH and SOD activity increased (both p<0.001). Conclusion: Irbesartan can improve blood glucose and lipid levels in type 2 diabetic rats, and reduce renal damage by improving oxidative stress and inhibiting the release of inflammatory cytokines.