Attenuation of cyclophosphamide induced toxicity by squalene in experimental rats.
Cyclophosphamide (CP) is a widely used antineoplastic drug, which could cause toxicity of the normal cells due to its toxic metabolites. In this study, the protective role of squalene (SQ) towards the tissue defense system in the toxicity induced by CP (150 mg/kg b.w., twice, in 2 consecutive days) was studied in the experimental rats. The significant (P<0.05) alterations in the levels of enzymic [superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST) and glutathione reductase (GR)] and non-enzymic antioxidants [total reduced glutathione (GSH), Vitamin E (Vit.E), Vitamin C (Vit.C) and ceruloplasmin] of the heart, red blood cell (RBC) hemolysate and plasma were investigated in the CP toxicity. Alterations in the levels of thiobarbutric acid reactive substance (TBARS) in heart, RBC hemolysate and plasma were also observed as a measure of lipid peroxidation (LPO). These pathological alterations due to CP administration were attenuated by the oral treatment of SQ at a dose of 0.4 ml/day/rat. These observations demonstrate the protective role of SQ towards the tissue defense system of the rats in the CP induced toxicity.
Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, Tamilnadu, India.
Subramanian
S
Senthilkumar
Surinder Kumar
SK
Yogeeta
Rajakannu
R
Subashini
Thiruvengadam
T
Devaki
D000284:Administration, Oral; D000818:Animals; D000975:Antioxidants / Q000008:administration & dosage / Q000494:pharmacology*; D001205:Ascorbic Acid / Q000494:pharmacology; D002374:Catalase / Q000378:metabolism; D002570:Ceruloplasmin / Q000378:metabolism; D003520:Cyclophosphamide / Q000037:antagonists & inhibitors / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D004912:Erythrocytes / Q000378:metabolism; D005978:Glutathione / Q000378:metabolism; D005979:Glutathione Peroxidase / Q000378:metabolism; D005980:Glutathione Reductase / Q000378:metabolism; D005982:Glutathione Transferase / Q000378:metabolism; D006321:Heart / Q000187:drug effects* / Q000502:physiology; D015227:Lipid Peroxidation / Q000187:drug effects* / Q000502:physiology; D051381:Rats; D017208:Rats, Wistar; D013185:Squalene / Q000008:administration & dosage / Q000494:pharmacology*; D013482:Superoxide Dismutase / Q000378:metabolism; D017392:Thiobarbituric Acid Reactive Substances / Q000378:metabolism; D014810:Vitamin E / Q000494:pharmacology
D000975:Antioxidants; D017392:Thiobarbituric Acid Reactive Substances; D014810:Vitamin E; D013185:Squalene; D003520:Cyclophosphamide; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase; D002570:Ceruloplasmin; D005980:Glutathione Reductase; D005982:Glutathione Transferase; D005978:Glutathione; D001205:Ascorbic Acid