Fig. 5From: Effects of endogenous inflammation signals elicited by nerve growth factor, interferon-γ, and interleukin-4 on peripheral nerve regenerationMacrophages stained with CD68 and Iba-1 immunoreactivity. a The macrophage density, b Representative photographs of stained macrophages (arrows) in regenerated nerves treated with different conduit fillings. *Significant differences between conditions, P < 0.05. Scale bar = 2 μmBack to article page