Fig. 3.
Relation between fractional survival and accumulation of lipid peroxidation products (TBARS). ARPE-19 cells were treated with a series of concentrations of retinaldehyde in the dark for 2 h, exposed in PBS to UVA light for 20 min, and grown in serum-free medium for 18 h. Fractional survival at each retinaldehyde concentration and TBARS content (determined by HPLC) were compared with cells treated identically without retinaldehyde. Error bars indicate SD.