title: Strategy to reduce free radical species in Alzheimer's disease: an update of selected antioxidants.
abstract: Alzheimer's disease (AD), characterized by progressive loss of memory, language, reasoning and other cognitive functions, including dementia, is characterized pathologically by the presence of senile plaques, neurofibrillary tangles and synapse loss. Increased oxidative/nitrosative stress, decreased antioxidants, mitochondrial damage and other factors play major roles in the development and progression of AD. Strategies to reduce pro-oxidant species to ameliorate AD pathology have been proposed with mixed results. In this review, we focus on the most recent in vitro and in vivo antioxidant approaches for removing oxidant species with relevance to AD, including N-acetyl-l-cysteine, vitamin D, vitamin E, ferulic acid, tricyclodecan-9-yl-xanthogenate, selenium and melatonin as therapeutic stratagems in AD management. In addition, we reviewed the most effective mitochondria targeted antioxidants such as coenzyme Q10 and lipoic acid. We suggest the use of multitargeted approaches by formulas containing one or more antioxidant compounds may be more promising than single-agent approaches.
authors.affiliation: Department of Biochemical Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Di Domenico
authors.forename: Eugenio
authors.initials: E
authors.lastname: Barone
authors.forename: Marzia
authors.initials: M
authors.lastname: Perluigi
authors.forename: D Allan
authors.initials: DA
authors.lastname: Butterfield
mesh_terms: D000544:Alzheimer Disease / Q000188:drug therapy* / Q000378:metabolism*; D000818:Animals; D000975:Antioxidants / Q000627:therapeutic use*; D006801:Humans; D017382:Reactive Oxygen Species / Q000378:metabolism*
chemical_list: D000975:Antioxidants; D017382:Reactive Oxygen Species
keywords: Alzheimer’s disease; antioxidants; dementia; free radicals; neurodegenerative