Additional file 6.

Figure S5. DNA fragmentation assay using untreated REP-hTERT cells and RPE-hTERT cells treated with DZ revealed little DNA laddering upon DZ treatment (left panel) while H2O2-treated RPE-hTERT cells demonstrated DNA laddering (right panel). An arrow indicates DNA ladder, a marker of apoptosis.

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Xu et al. BMC Chemical Biology 2010 10:1   doi:10.1186/1472-6769-10-1