Plasma Lipoproteins as Mediators of the Oxidative Stress Induced by UV Light in Human Skin: A Review of Biochemical and Biophysical Studies on Mechanisms of Apolipoprotein Alteration, Lipid Peroxidation, and Associated Skin Cell Responses
Figure 6
(a) Decay of transient absorbance of αTocO• radicals at 430 nm (⚪, ⋄) and bleaching of the carotenoid absorbance at 470 nm (□, ∆) after oxidation of 20 μM HDL by radical-anions in 10 mM pH 7 phosphate buffer. Solutions were saturated with N2O (□, ⚪) and O2 (⋄, ∆). (b) Transient absorbance changes measured at 430 nm and 470 nm for solutions containing 1.6 μM LDL. In (a) and (b), μM for N2O-saturated solutions and μM for O2-saturated solutions (see [31] for full experimental details).