title: Antiperoxidative activity of neolignans from Magnolia obovata.
abstract: Honokiol and magnolol, neolignans in Magnolia obovata, have been evaluated as antioxidants. Microsomal lipid peroxidation induced by Fe(III)-ADP/NADPH and mitochondrial lipid peroxidation induced by Fe(III)-ADP/NADH were inhibited by these compounds. These neolignans protected mitochondrial respiratory chain enzyme activity against NADPH-induced peroxidative stress and protected red cells against oxidative haemolysis. The anti-oxidative activity of honokiol was more potent than that of magnolol. Neolignans in M. obovata were shown to be effective in protecting biological systems and functions against oxidative stress.
authors.affiliation: Faculty of Engineering, Fukuyama University, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Haraguchi
authors.forename: H
authors.initials: H
authors.lastname: Ishikawa
authors.forename: N
authors.initials: N
authors.lastname: Shirataki
authors.forename: A
authors.initials: A
authors.lastname: Fukuda
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D001713:Biphenyl Compounds / Q000494:pharmacology; D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D004912:Erythrocytes / Q000187:drug effects*; D006461:Hemolysis / Q000187:drug effects; D017705:Lignans / Q000494:pharmacology*; D015227:Lipid Peroxidation; D008297:Male; D008862:Microsomes, Liver / Q000187:drug effects* / Q000378:metabolism; D008930:Mitochondria, Liver / Q000187:drug effects* / Q000378:metabolism; D051381:Rats; D017208:Rats, Wistar; D014197:Trees; D000498:Allyl Compounds; D010636:Phenols
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D004365:Drugs, Chinese Herbal; D017705:Lignans; C005498:magnolol; C005499:honokiol; D000498:Allyl Compounds; D010636:Phenols