Inhibition of Iron-Catalyzed Oxidations by Attainable Uric Acid and Ascorbic Acid Levels: Therapeutic Implications for Alzheimer’s Disease and Late Cognitive Impairment

Alzheimer's disease (AD) has become one of the major health problems of the developed world. Previous studies have shown that oxidant-induced changes occur in cerebral tissue in AD and in late-onset amnestic mild cognitive impairment. The oxidative damage begins early and involves free radical-mediated effects that cause lipid peroxidations and oxidative protein and nucleic acid damages which begin before the cardinal neuropathologic manifestations. Impaired cerebral iron homeostasis and iron accumulation are postulated to be primary and seminal in the pathogenesis.