Effect of vitamin C combined with vitamin E on antioxidant capacity and inflammatory response in patients with hemodialysis

Objective: To study the effect of vitamin C combined with vitamin E on antioxidant capacity and inflammatory response in patients with hemodialysis. Methods: A total of 116 patients with uremia who received hemodialysis in the hospital between December 2014 and January 2017 were collected and divided into control group and observation group by random number table, each with 58 cases. Control group received vitamin C intervention, and observation group received vitamin C combined with vitamin E intervention. The differences in serum levels of antioxidant indexes, pro-inflammatory mediators and anti-inflammatory mediators were compared between the two groups before intervention and 6 weeks after intervention. Results: Before intervention, serum levels of antioxidant indexes, pro-inflammatory mediators and anti-inflammatory mediators were not significantly different between the two groups. After intervention, serum SOD, GSH-PX and T-AOC levels of both groups of patients were higher than those before treatment while IL-1, IL-2, IL-6, IL-8, IL-4, IL-10 and IL-13 levels were lower than those before treatment, and serum SOD, GSH-PX and T-AOC levels of observation group were higher than those of control group while IL-1, IL-2, IL-6, IL-8, IL-4, IL-10 and IL-13 levels were lower than those of control group. Conclusion: Vitamin C combined with vitamin E intervention can effectively enhance the antioxidant capacity and suppress the systemic inflammatory state in patients with hemodialysis.

Protective effect of calcium dobesilate combined with benazepril therapy on renal injury in patients with early diabetic nephropathy and the possible molecular mechanisms

Objective:To explore the protective effect of calcium dobesilate combined with benazepril therapy on renal injury in patients with early diabetic nephropathy and the possible molecular mechanisms.Methods:A total of 50 patients with early diabetic nephropathy treated in our hospital between May 2012 and January 2016 were collected, and according to the random number table, the patients were divided into observation group (n=25) and control group (n=25). On the basis of conventional treatment, control group of patients received benazepril therapy, observation group of patients received calcium dobesilate combined with benazepril therapy, and the treatment lasted for 3 months. Before and after treatment, automatic biochemical analyzer was used to detect the levels of renal injury indexes in peripheral blood, RIA method was used to detect the levels of renal injury indexes in urine, ELISA method was used to detect the levels of renal fibrosis indexes and Western-blot method was used to detect the protein expression of TGF-β1/BMP-7 and Smad signaling pathway molecules in renal tissue. Results: Before treatment, differences in renal injury index levels, renal fibrosis index levels and signaling pathway molecule protein expression were not statistically significant between two groups of patients. After treatment, BUN, SCr andβ-TP levels in the peripheral blood as well as KIM-1 level in urine of observation group were lower than those of control group;renal fibrosis indexes TGF-β1, CTGF, TIMP-1, LN and HA levels in serum of observation group were lower than those of control group;TGF-β1 and Smad2/3 protein expression in renal tissue of observation group were lower than those of control group while Smad7 and BMP-7 protein expression were higher than those of control group.Conclusion: Calcium dobesilate combined with benazepril therapy can reduce the renal injury and inhibit the fibrosis process in patients with early diabetic nephropathy, and it achieves the above effect by regulating the TGF-β1/BMP-7 and Smad signaling pathway function.