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Tricine-SDS-PAGE analysis of the aggregation states of Aβ peptides freshly dissolved or incubated for 7 days. Aβ1-42 exhibits bands at 5–20 kDa in both freshly prepared samples and samples incubated for 7 days. Aβ1-40 incubated for 7 days also exhibits a smear at higher molecular weights, which is absent in freshly prepared samples. Reprinted from [46], with permission from Elsevier.
