Figure 4.
Cell apoptosis detected by flow cytometry. (A) PC12 cell with normal medium. (B) PC12 cell with normal medium and 20 μmol/l Aβ. (C) PC12 cell with 20% control serum and 20 μmol/l Aβ. (D) PC12 cell with 20% prepared serum and 20 μmol/l Aβ.
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