title: Effect of CDA-II, urinary preparation, on lipofuscin, lipid peroxidation and antioxidant systems in young and middle-aged rat brain.
abstract: The levels of lipofuscin and lipid peroxidation reflect the degree of free radical-induced oxidative damage in the brain. We examined the effects of CDA-II, a preparation of human urine, on lipofuscin and lipid peroxidation in the brain of young (3.5 months) and middle-aged rats (17 months). The rats were given CDA-II orally at dosages of 0.3 or 1.0 g/kg daily for 8 weeks. CDA-II significantly suppressed the contents of lipofuscin and lipid peroxidation in both young and middle-aged rats. CDA-II also elevated the activity of superoxide dismutase, and the amounts of glutathione and ascorbic acid in the middle-aged rats, but not in the young ones. Our results suggest that the protection against oxidative damage by CDA-II in the young rat brain may be due to its scavenging activity against free radicals. In the middle-aged rats, in addition to the scavenging activity, the levels of endogenous antioxidants were also enhanced by the CDA-II treatment.
authors.affiliation: Department of Pharmacology, China Medical College, Taichung, Taiwan.
authors.forename: W C
authors.initials: WC
authors.lastname: Lin
authors.forename: Y W
authors.initials: YW
authors.lastname: Wu
authors.forename: T Y
authors.initials: TY
authors.lastname: Lai
authors.forename: M C
authors.initials: MC
authors.lastname: Liau
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000378:metabolism*; D001921:Brain / Q000187:drug effects* / Q000378:metabolism; D002374:Catalase / Q000378:metabolism; D016166:Free Radical Scavengers / Q000494:pharmacology*; D005978:Glutathione / Q000378:metabolism; D005979:Glutathione Peroxidase / Q000378:metabolism; D015227:Lipid Peroxidation / Q000187:drug effects*; D008062:Lipofuscin / Q000378:metabolism*; D008297:Male; D008315:Malondialdehyde / Q000378:metabolism; D051381:Rats; D017207:Rats, Sprague-Dawley; D013482:Superoxide Dismutase / Q000378:metabolism; D014556:Urine; D014810:Vitamin E / Q000378:metabolism
chemical_list: D000970:Antineoplastic Agents; D000975:Antioxidants; D016166:Free Radical Scavengers; D008062:Lipofuscin; D014810:Vitamin E; D008315:Malondialdehyde; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase; D005978:Glutathione