Fig. 7: The ADRB2 antagonist accelerates corneal wound healing in DM mice.

DM mice were performed with corneal epithelial debridement and topically applied with the eye drop containing 10 μM ICI 118, 551 (ICI). A, B Mouse corneal epithelial defects were monitored with fluorescein staining and calculated with Image J software (n = 5 mice per group). C, D Mouse corneal nerves were stained and the subbasal nerve fibers were counted with Image J software at 48 h post wounding (n = 4 corneas per group). E Corneal sensations were measured with a Cochet-Bonnet esthesiometer at 48 h post wounding (n = 5 mice per group). Corneal NGF and GDNF expressions were detected with qPCR (n = 3 mice per group) at 48 h post wounding (F) and immunofluorescence staining (G). H The fluorescence intensity of NGF and GDNF in the corneal epithelium was quantified by Image J software. Data are representative of the mean ± SD. *p < 0.05, **p < 0.01, ***P < 0.001, ****P < 0.0001.