Figure 2.

Viability of neurons treated with Aβ40 incubated in the presence of GM1 ganglioside. Phase-contrast and calsein AM–ethidium homodimer-stained photographs of cultured neurons were taken after treatment with TBS (a, b), Aβ40 (c, d), GM1-lacking liposomes (e, f), GM1-lacking liposomes plus Aβ40 (g, h), GM1-containing liposomes (i, j), and GM1-containing liposomes plus Aβ40 (k, l). m, Viable cells stained with calcein AM were counted. The data represent means ± SE for triplicate samples. *p < 0.003 versus other treatments. Scale bars, 20 μm.