Objective To investigate the effects of Sodium hydrogen sulfide(NaHS,a donor of H_2S) on oxidative stress by high glucose in human renal tubular epithelial cells. Methods Human renal tubular epithelial cells were cultured and divided into eight groups:low glucose as control group(5. 5 mmol/l D-Glucose),low glucose+ NaHS pretreatment group with concentration of 50,100 and 200 μmol/l,high glucose group(40 mmol/l D-Glucose),high glucose + NaHS pretreatment group with concentration of 50,100 and 200 μmol/l. The...