Figure 3.
Apoptosis was detected in retinal tissues by TUNEL and DAPI staining. A. The retinal layer of control rats. B. The retinal layer of STZ-induced diabetic retinopathy rats. The apoptotic cells of retinal ganglion were detected by TUNEL (green), and the nuclei (blue) were stained with DAPI. Scale bar = 50 μm.