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Superoxide generated in the lens of cataract in diabetic patients. (A) Representative images showing superoxide-positive cells in red, lens epithelial tissue was derived from cataracts of diabetic or non−diabetic patients. Cell nuclei were counterstained with DAPI (blue). Scale bar = 20 μm. (B) Quantified values (right) are represented as mean ± SEM (n = 10 for each group).
