Figure 2.

Effects of individual Ginkgo biloba components on Aβ_1–42-induced loss of synaptophysin. The synaptophysin content of cortical neuronal cultures pre-treated for 3 hours with varying concentrations of ginkgolides A (hollow circle) or B (solid circle), myricetin (solid squares) or quercetin (hollow squares) and subsequently incubated with 200 nM Aβ_1–42 for 24 hours. Values shown are the mean synaptophysin content ± SD from 6 observations.