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Aβ peptides induced cell death of N2A neuroblastoma cells. N2A cells were incubated in DMEM medium containing 1% FBS at 37 °C for 48 h in the absence or presence of two concentrations (5 and 10 μM) of monomerized or pre-oligomerized Aβ1-42 peptides. Cell death was evaluated by annexin V and propidium iodide staining and flow cytometry analysis
