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Microphotograph of TUNEL-stained retinal sections, showing the effect of topical TRF on the retinal cell apoptosis (magnification 20×). White arrow: TUNEL apoptotic cells, Left: DAPI; Middle: FITC; Right: DAPI + FITC (Merged). NO: Normal rats with oral vehicle treatment, DVO: Diabetic rats with oral vehicle treatment, DTO: Diabetic rats with oral TRF treatment, GCL: Ganglion cell layer. (Scale bar: 100 µm).
