title: Diphenyl diselenide prevents oxidative damage induced by cigarette smoke exposure in lung of rat pups.
abstract: The effect of cigarette smoke exposure on lungs of rat pups was evaluated. Animals were exposed to passive cigarette smoke during 3 weeks and a number of toxicological parameters in lung of pups were examined, such as lipid peroxidation, delta-aminolevulic acid dehydratase (delta-ALA-D) activity, components of the enzymatic antioxidant defenses (superoxide dismutase (SOD) and catalase activities) and non-enzymatic antioxidant defenses (Vitamin C and non-protein thiol (NPSH) levels). Furthermore, a possible protective effect of diphenyl diselenide, (PhSe)(2), was studied. The results demonstrated an increase in lipid peroxidation, an inhibition of delta-ALA-D activity, a reduction of Vitamin C and NPSH levels induced by cigarette smoke exposure, indicating damage in lungs of rat pups. Oral administration of (PhSe)(2) (0.5mg/kg) restored TBARS levels, non-enzymatic antioxidant defenses and activity of delta-ALA-D. These results indicated that exposure to cigarette smoke enhanced oxidative stress, thereby disturbing the tissue defense system. (PhSe)(2) protected against oxidative damage induced by cigarette smoke exposure in lung of rat pups.
authors.affiliation: Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil.
authors.forename: Cristiane
authors.initials: C
authors.lastname: Luchese
authors.forename: Eluza C
authors.initials: EC
authors.lastname: Stangherlin
authors.forename: Ana P
authors.initials: AP
authors.lastname: Ardais
authors.forename: Cristina W
authors.initials: CW
authors.lastname: Nogueira
authors.forename: Francielli W
authors.initials: FW
authors.lastname: Santos
mesh_terms: D000622:Aminolevulinic Acid / Q000378:metabolism; D000818:Animals; D000833:Animals, Suckling; D000975:Antioxidants / Q000494:pharmacology*; D001205:Ascorbic Acid / Q000378:metabolism; D001555:Benzene Derivatives / Q000494:pharmacology*; D001835:Body Weight / Q000187:drug effects; D002374:Catalase / Q000378:metabolism; D005260:Female; D015227:Lipid Peroxidation / Q000187:drug effects; D008171:Lung Diseases / Q000209:etiology* / Q000378:metabolism / Q000517:prevention & control*; D008297:Male; D016566:Organoselenium Compounds / Q000494:pharmacology*; D011247:Pregnancy; D051381:Rats; D017208:Rats, Wistar; D013438:Sulfhydryl Compounds / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism; D017392:Thiobarbituric Acid Reactive Substances / Q000032:analysis; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*
chemical_list: D000975:Antioxidants; D001555:Benzene Derivatives; D016566:Organoselenium Compounds; D013438:Sulfhydryl Compounds; D017392:Thiobarbituric Acid Reactive Substances; D014028:Tobacco Smoke Pollution; C061132:diphenyldiselenide; D000622:Aminolevulinic Acid; D002374:Catalase; D013482:Superoxide Dismutase; D001205:Ascorbic Acid