Figure 5. Ultraperformance liquid
chromatographic quantification of glutathione (GSH) consumed and
glutathione disulfide (GSSG) formed when irradiated A2E is incubated
with GSH. A: A2E (200 μM) was irradiated (430 nm, 20 min) in
the presence of GSH at the indicated concentrations. B: A2E
(200 μM) was irradiated (430 nm, 20 min) and then incubated with GSH.