Abstract
Current hypotheses of pathogenesis of neuronal degeneration in Alzheimer's disease (AD) have been proposed, including formation of free radicals, oxidative stress, mitochondrial dysfunction, inflammatory processes, genetic factors, environmental impact factors, apoptosis, and so on. Especially, oxidative stress plays an essential role in AD pathogenesis by the function of linking agent. Oxidative stress in AD mainly includes lipid peroxidation, protein oxidation and DNA oxidation. Lipid peroxidation plays a key role in the development and progression of AD. Protein oxidation is an important mechanism in AD. Oxidative damage to DNA may plays an important role in aging and AD.
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