Mouse livers were stained with rabbit anti-CD11b Ab (Abcam, Cambridge, MA), rat anti-Ly6G Ab (BD Biosciences, San Jose, CA), rabbit anti-4-hydroxynonenal Ab (Abcam), rabbit anti-HO-1 Ab (Enzo Life Sciences, Farmingdale, NY) and rat anti-CD68 Ab (Bio Rad, Hercules, CA). Human livers were stained with rabbit anti-HO-1 Ab (Enzo Life Sciences) and mouse anti-CD68 Ab (BD Biosciences). Signals were visualized with secondary Alexa Fluor Abs. Liver-infiltrating CD11b+ and Ly6G+ cells were scored semi-quantitatively by blindly counting positive cells in 10 HPF/section (x400).
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