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Cross-talk between pathogenic mechanisms in neurodegeneration: the role of oxidative stress in Amyotrophic Lateral Sclerosis

L. Chico, M. Modena, A. Lo Gerfo, G. Ricci, E. Caldarazzo Ienco, L. Ryskalin, F. Fornai, G. Siciliano


The mechanisms underlying motoneuron degeneration in amyotrophic lateral sclerosis (ALS), a neurodegenerative disorder that affects the motor system with progressive paralysis, are complex and not yet fully understood. It is
generally agreed that ALS is a multifactorial and multisystem disease due not only possibly to genetic causes but also to other factors like oxidative stress, mitochondrial dysfunction, protein aggregation, RNA dysmetabolism,
autophagy, and excitotoxicity glutamate-mediate. Altered oxidative stress biomarker profile has been repeatedly reported in ALS patients, which may suggest that abnormal free radical production is relevant in the ALS pathogenesis. This review aims to investigate how oxidative stress can affect other proposed mechanisms of neurodegeneration in ALS.

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