Fig. 5.

Close association of neurons with newborn cells (satellite cells). A, A NeuN-positive neuron (red and black/white inset) appeared to be colabeled with BrdU in a merged image resembling a regular fluorescent microscope image. B–H, Z-series analysis revealed that the NeuN-positive neuronal cell body is situated in a different focal plane from the BrdU-positive nucleus. Note that the NeuN-positive nucleus with nucleolus is visible inC and the BrdU-positive nucleus in E andF. Scale bar in A, 10 μm.