ABSTRACT
Objective To explore the effects of α-keto acid combined with low protein diet on oxidative stress and electrolyte levels in patients with diabetic nephropathy. Methods Ninety-eight cases with type 2 diabetic nephropathy were randomLy divided into the treatment group(low-protein diet with α-keto acid 1 tablet,n=58) and the control group(normal protein intake,n=40). The 24 h urinary albumin excretion rate,glomerular filtra-tion rate ,serum oxidative stress (SOD ,MDA ,AOPPs) and electrolyte levels were measured before and after treatment. Results After 24 weeks of treatment,the 24 h urinary albumin excretion rate of DN patients in the treatment group was significantly lower than that before treatment and the control group (P < 0.05). However, there was no significant change in the glomerular filtration rate of the patients. Compared with the control group , the serum SOD activity of DN patients was significantly increased and the levels of MDA and AOPPs were decreased(P < 0.05)after 24 weeks of treatment. Simultaneously,the levels of serum potassium and phosphorus in the treatment group was decreased ,while the levels of calcium and magnesium were improved (P < 0.05). Conclusion α-keto acid combined with low protein diet can significantly reduce the urinary albumin excretion rate,improve the body′s antioxidant activity,and maintain serum electrolytes balance.