Mutant SOD1-induced neuronal toxicity is mediated by increased mitochondrial superoxide levels.

Abstract excerpt

Amyotrophic lateral sclerosis (ALS), the most common motor neuron disease in adults, is characterized by the selective degeneration and death of motor neurons leading to progressive paralysis and eventually death. Approximately 20% of familial ALS cases are associated with mutations in SOD1, the gene encoding Cu/Zn-superoxide dismutase (CuZnSOD). Previously, we reported that overexpression of the mitochondrial...

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