title: Protective effect of Sargassum polycystum (brown alga) against acetaminophen-induced lipid peroxidation in rats.
abstract: Lipid peroxidation is believed to play an important role in the pathogenesis of several diseases, such as cancer, diabetic mellitus and liver injury. Aqueous and ethanol extracts of Sargassum polycystum C. Agardh (Phaeophyta) were screened for their protective effects against acetaminophen (ACP; Paracetamol)-induced lipid peroxidation in rats. A single dose of acetaminophen significantly elevated the levels of lipid peroxides (LPO) with decreased levels of free radical scavenger enzymes (SOD, CAT, GSH, GPx, GST) in liver homogenate. The oral pretreatment of rats with ethanol and aqueous extracts of Sargassum polycystum C. Agardh (100 mg, 200 mg[sol ]kg body wt[sol ]day respectively, for a period of 15 days) significantly reduced the acetaminophen-induced oxidative stress in rats. The animals treated with the ethanol and aqueous extracts alone did not show any toxicity on liver tissue. This observation shows that the seaweed crude extracts probably acted to protect against acetaminophen-induced lipid peroxidation through their free radical scavenging property.
authors.affiliation: Department of Biochemistry and Molecular Biology, University of Madras, Guindy Campus, Chennai 25, India.
authors.forename: Hanumantha Rao Balaji
authors.initials: HR
authors.lastname: Raghavendran
authors.forename: Arumugam
authors.initials: A
authors.lastname: Sathivel
authors.forename: Thiruvengadam
authors.initials: T
authors.lastname: Devaki
mesh_terms: D000082:Acetaminophen; D000818:Animals; D056486:Chemical and Drug Induced Liver Injury / Q000201:enzymology / Q000209:etiology / Q000517:prevention & control*; D015227:Lipid Peroxidation / Q000187:drug effects*; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D020011:Protective Agents / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D051381:Rats; D017208:Rats, Wistar; D044647:Sargassum
chemical_list: D010936:Plant Extracts; D020011:Protective Agents; D000082:Acetaminophen