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Functional mitochondria are required for amyloid beta-mediated neurotoxicity

The role of mitochondria in amyloid bpeptide (Ab)-induced cytotoxicity is unclear. We therefore exposed NT2 cells, a clonal human teratocarcinoma cell line capable of differentiation into terminal neurons, to Ab 25-35 or to Ab 1-42 to evaluate cell viability and altered mitochondrial function. A 24-h incubation of native NT2 cells (r+ cells) with Ab 25-35 or with Ab 1-42 produced a dose-dependent decline in MTT...