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- W1431191517 abstract "In this study, we treated PC12 cells with 0-20 μM amyloid-β peptide (25-35) for 24 hours to induce cytotoxicity, and found that 5-20 μM amyloid-β peptide (25-35) decreased PC12 cell viability, but adenosine triphosphate-sensitive potassium channel activator diazoxide suppressed the decrease in PC12 cell viability induced by amyloid-β peptide (25-35). Diazoxide protected PC12 cells against amyloid-β peptide (25-35)-induced increases in mitochondrial membrane potential and intracellular reactive oxygen species levels. These protective effects were reversed by the selective mitochondrial adenosine triphosphate-sensitive potassium channel blocker 5-hydroxydecanoate. An inducible nitric oxide synthase inhibitor, Nω-nitro-L-arginine, also protected PC12 cells from amyloid-β peptide (25-35)-induced increases in both mitochondrial membrane potential and intracellular reactive oxygen species levels. However, the H2O2-degrading enzyme catalase could not reverse the amyloid-β peptide (25-35)-induced increase in intracellular reactive oxygen species. A 24-hour exposure to amyloid-β peptide (25-35) did not result in apoptosis or necrosis, suggesting that the increases in both mitochondrial membrane potential and reactive oxygen species levels preceded cell death. The data suggest that amyloid-β peptide (25-35) cytotoxicity is associated with adenosine triphosphate-sensitive potassium channels and nitric oxide. Regulation of adenosine triphosphate-sensitive potassium channels suppresses PC12 cell cytotoxicity induced by amyloid-β peptide (25-35)." @default.
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- W1431191517 date "2013-01-05" @default.
- W1431191517 modified "2023-09-22" @default.
- W1431191517 title "Regulation of adenosine triphosphate-sensitive potassium channels suppresses the toxic effects of amyloid-beta peptide (25-35)." @default.
- W1431191517 doi "https://doi.org/10.3969/j.issn.1673-5374.2013.01.007" @default.
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