Lambda-cyhalothrin-induced biochemical and histopathological changes in the liver of rats: ameliorative effect of ascorbic acid.
Pyrethroid pesticides were used preferably over organochlorines and organophosphates due to their high effectiveness, low toxicity to non-target organisms and easy biodegrability. It has widespread applications in agriculture through the world and in Tunisia. The present study investigates lambda-cyhalothrin (LTC) effects on biochemical parameters, hepatotoxicity and their attenuation by vitamin C. Male Wistar rats were randomly divided into three groups of seven each: a control group (C) and two treated groups during 3 weeks with LTC administrated either alone in drinking water for LTC group or coadministred with vitamin C for LTC+vit C group. Lactate deshydrogenase (LDH) activity was significantly increased in liver (+51%, p<0.001) and in plasma (+40%, p<0.001) compared to those of control group. A significant increase of malondialdehyde (MDA) levels in liver (+53%; p<0.001) associated with a decrease in antioxidants enzyme activities and reduced glutathione (GSH) content was observed in LTC group compared to controls. The administration of vitamin C to LTC+vit C group improved all parameters studied. We conclude that LTC induces oxidative stress and modifies biochemical parameters and histological aspects of liver. Administration of vitamin C alleviates the toxicity induced by this synthetic pyrethroid insecticide.
Animal Physiology Laboratory, Sciences Faculty of Sfax, Life Science Department, Sfax 3000, Tunisia.
Hamadi
H
Fetoui
El Mouldi
el M
Garoui
Najiba
N
Zeghal
D000410:Alanine Transaminase / Q000187:drug effects; D000818:Animals; D001205:Ascorbic Acid / Q000494:pharmacology*; D001219:Aspartate Aminotransferases / Q000187:drug effects; D002374:Catalase / Q000187:drug effects; D056486:Chemical and Drug Induced Liver Injury; D005978:Glutathione / Q000187:drug effects; D007306:Insecticides / Q000633:toxicity*; D007770:L-Lactate Dehydrogenase / Q000187:drug effects; D008107:Liver Diseases / Q000473:pathology / Q000517:prevention & control*; D008297:Male; D008315:Malondialdehyde / Q000378:metabolism; D009570:Nitriles / Q000633:toxicity*; D011722:Pyrethrins / Q000633:toxicity*; D051381:Rats; D017208:Rats, Wistar; D013482:Superoxide Dismutase / Q000187:drug effects; D017392:Thiobarbituric Acid Reactive Substances / Q000378:metabolism; D014815:Vitamins / Q000494:pharmacology*
D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins; D017392:Thiobarbituric Acid Reactive Substances; D014815:Vitamins; D008315:Malondialdehyde; D007770:L-Lactate Dehydrogenase; D002374:Catalase; D013482:Superoxide Dismutase; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D005978:Glutathione; D001205:Ascorbic Acid; C037304:cyhalothrin