Dose–response
curves for G oxidation products with different
oxidants. DNA was treated with (a) γ-radiation, (b) ONOO–, (c) 1O2 from photooxidation
of rose bengal, and (d) SIN-1, and the G oxidation products 8-oxodG,
Sp, Gh, and Ox were quantified as described in Experimental
Procedures. Data are plotted as the lesion level without exponential
scaling on the Y-axis, with the exponential scaling
noted in the inset. Data represent the mean ± SD.