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. 2021 Jul 19;14(7):694. doi: 10.3390/ph14070694

Figure 2.

Figure 2

TUNEL staining of retinal sections at the site of “f”. TUNEL assay indicated that TUNEL-positive signals (green) were mainly detected in the ONL and were likely to be fewer in retinas treated with NK-4 (0.0001 mg/mL, 0.001 mg/mL, 0.01 mg/mL, and 0.1 mg/mL) than in those with control vehicle. Cell nuclei were counterstained with DAPI (blue). Pair groups: (A) vs. (B), (C) vs. (D), (E) vs. (F), (G) vs. (H). ONL, outer nuclear layer; INL, inner nuclear layer; OPL, outer plexiform layer. Scale bar = 25 μm.