Nitrotyrosine immunolabeling increases regionally following blast. (A–H) Epifluorescence micrographs of control (A), LPS-injected (B), and midperipheral (C, E, G) and central (D, F, H) regions of 3- (C, D), 7- (E, F), and 28- (G, H) day postblast retinas labeled with antinitrotyrosine (green) and DAPI (blue).