Fig. 2. Increase in F-actin levels correlates with enhancement in growth cone area and filopodia number. Hippocampal neurons control and stimulated with A
1-42 were immunostained with phalloidin-TRITC (top panels; higher magnification of the boxed regions is shown in the insets) and growth cone area and filopodia number were analyzed (bottom panels). Scale bar, 20 µm. Values are expressed as mean ± s.d.