The morphology and bouton number of NMJ are unaffected by neuronal Aβ42 expression. (A) Representative images of NMJs on muscle 6/7 of elav-Gal4, Aβ42; elav-Gal4, and Aβ42; D42-Gal4 stained with Dlg to visualize the postsynaptic side and HRP to visualize the neuron. Aβ42 expression does not change NMJ morphology. (B) quantification of the bouton number as meanβüβsem in percent of control. n.s. means `not significantü compared to control as calculated with studentüs t-test.