Background: Hydrogen sulfide (H2S) has been shown to have a protective role in various kidney
disorders. Objectives: This study investigated the molecular mechanism of NaHS (a H2S donor) in treating on
the renal damage induced by cisplatin (CP).Materials and Methods: Thirty-two male rats
were randomly divided into 4 groups: Normal control group (group A)‚ NaHS group (group
B) which received 200 µg/kg/d (intraperitoneal injection; i.p.) for 15 days‚ CP group
(group C) which rats were injected with CP (5 mg/kg, single dose, i.p.), and CP + NaHS
group (group D) (5 mg/kg and 200 µg/kg, respectively, i.p.). Samples of urine and serum,
tissue of kidney were collected for analysis after treatments for 15 days. Morphological
changes were elevated under light microscope‚ protein expression of desmin and nephrin
were determined by immunohistochemistry and western blotting and also malondialdehyde
(MDA) level was determined by spectrophotometer. Results: Compared to the CP group, NaHS treatment mitigated histological damages, decreased
24-hour urine protein excretion, serum urea and creatinine as well as MDA level. NaHS
treatment increased protein levels of nephrin. Moreover, NaHS treatment decreased
protein levels of desmin. Conclusions: NaHS can ameliorate CP -induced renal damage in rats which is associated with the
increase in nephrin protein expression, and the decrease in MDA level and desmin protein
expression.