Fig. 4

Anti-ChAT immunostaining of (a) the control nerves and (b to g) all groups, 60 days after surgery. h Quantification of the integrated density of pixels in the experimental groups in relation to control group (%). Statistically, there is no significant difference among experimental groups. Scale bar: 50 μm. N: neurorrhaphy, F: heterologous fibrin sealant, D: doxycycline, T: transgenic hESCs