Fig. 3.

Pre- and postsynaptic changes during developmental activity-dependent synapse elimination. Synaptic AChR cluster morphologies in the neuromuscular junctions of the rat LAL muscle from birth to adulthood. AChRs were stained with rhodamine-conjugated α-bungarotoxin. Postsynaptic AChR clusters are classified from M1 to M4 types according their morphologic maturation. The colour image shows a confocal image showing several NMJs immunostained in green with neurofilament-200 and in red with α-bungarotoxin. Scale bars: 10 μm. Reproduced with permission from Lanuza et al. (2002).