Original scientific paper
https://doi.org/10.2478/10004-1254-61-2010-1979
Melatonin Inhibits Benzene-Induced Lipid Peroxidation in Rat Liver
Seema Sharma
; Toxicology Laboratory, Department of Zoology, Ch. Charan Singh University, Meerut, India
Suresh Vir Singh Rana
; Toxicology Laboratory, Department of Zoology, Ch. Charan Singh University, Meerut, India
Abstract
We studied the antioxidative role of melatonin against benzene toxicity in rat liver. The inhibition of mitochondrial and microsomal lipid peroxidation differed between 24-hour (single-dose), 15-day, and
30-day treatments. Inhibition of mitochondrial lipid peroxidation was the highest after the single dose of melatonin, whereas highest microsomal inhibition was recorded after 30 days of melatonin treatment. No signifi cant difference was recorded between 15-day and 30-day treatments. Cytochrome P4502E1 (CYP4502E1) activity declined after the single-dose and 15-day melatonin treatment in the benzenetreated group, but it rose again, though not signifi cantly after 30 days of treatment. Liver histopathology generally supported these fi ndings. Phenol concentration in the urine samples declined in melatonin and benzene-treated rats. Our results show that melatonin affects CYP4502E1, which is responsible for benzene metabolism. Inhibition of its metabolism correlated with lower lipid peroxidation. In conclusion, melatonin was found to be protective against lipid peroxidation induced by benzene.
Keywords
CYP4502E1; GSH; histopathology; mitochondria; microsomes; phenol; urine
Hrčak ID:
49012
URI
Publication date:
17.3.2010.
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