title: Oxytocin ameliorates cisplatin-induced nephrotoxicity in Wistar rats.
abstract: OBJECTIVE
  The clinical use of cisplatin (CP) is highly limited because of its renal toxicity and the production of reactive oxygen species (ROS) that intensify the cytotoxic effects. Oxytocin (OT) was previously shown to have antioxidant activity.
  
  
  METHODS
  Experimental study on male Wistar albino rats performed in the Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia.
  
  
  METHODS
  Forty-eight male Wistar albino rats were classified into four equal groups: a control group, OT only-treated group which received OT twice (500 micro g/kg intraperitoneally (ip) 30 minutes and just before saline administration), a CP-induced nephrotoxicity group that received a single dose of CP (7.5 mg/kg ip) and treated with saline, and CP+OT group treated with the same previous doses. Seventy-two hours after CP administration, the rats were sacrificed and blood was withdrawn for determination of urea, creatinine, albumin and lactate dehydrogenase (LDH). The kidneys were extracted for histopathological examination and determination of the tissue levels of reduced glutathione (GSH), thiobarbituric acid reactive substances (TBARS) and nitric oxide end product nitrite (NO(2)). Glutathione S-transferase (GST), catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx) and myeloperoxidase (MPO) activities were assessed.
  
  
  RESULTS
  CP-induced renal injury was evidenced histopathologically and manifested by a significant increase in serum LDH activity as well as urea and creatinine levels. Moreover, renal injury was associated with decreased renal tissue activities of CAT, SOD, GPx and GST as well as GSH level. On the other hand, renal tissue content of TBARS and NO(2) as well as the activity of MPO were increased. Alterations in these biochemical and histopathological indices due to CP were attenuated by OT.
  
  
  CONCLUSIONS
  OT protected rats from CP-induced nephrotoxicity. Such protection is attributed, at least in part, to its antioxidant activity.
authors: Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia. Berry_ahmed@yahoo.com
authors: Ahmed A
authors: AA
authors: Elberry
authors: Shereen M
authors: SM
authors: Refaie
authors: Mohamed
authors: M
authors: Kamel
authors: Tarek
authors: T
authors: Ali
authors: Hatem
authors: H
authors: Darwish
authors: Osama
authors: O
authors: Ashour
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D000975:Antioxidants / Q000378:metabolism / Q000494:pharmacology* / Q000627:therapeutic use; D002945:Cisplatin / Q000378:metabolism / Q000633:toxicity*; D005978:Glutathione / Q000378:metabolism; D007668:Kidney / Q000187:drug effects* / Q000201:enzymology / Q000473:pathology; D045022:Lactate Dehydrogenases / Q000097:blood / Q000378:metabolism; D008297:Male; D009569:Nitric Oxide / Q000378:metabolism; D018384:Oxidative Stress / Q000187:drug effects*; D010121:Oxytocin / Q000378:metabolism / Q000494:pharmacology* / Q000627:therapeutic use; D051381:Rats; D017208:Rats, Wistar; D017392:Thiobarbituric Acid Reactive Substances / Q000378:metabolism
chemical_list: D000975:Antioxidants; D017392:Thiobarbituric Acid Reactive Substances; D009569:Nitric Oxide; D010121:Oxytocin; D045022:Lactate Dehydrogenases; D005978:Glutathione; D002945:Cisplatin