DMD and Duchenne muscular dystrophy: Mouse lacking full length Dystrophin Dp427, or the short C-terminal isoforms Dp71s, show altered presynaptic ultrastructure in excitatory (Glutamatergic) hippocampal synapses, which may contribute to the intellectual disability characteristic of the X-linked DMD [59], and supports our observation about the possible contribution of Dp71s expression in the acquisition of the neurotransmitter phenotype (GABAergic vs Glutamatergic) during hippocampal neuronal differentiation.