Research Article

Oxidative Stress during the Progression of β-Amyloid Pathology in the Neocortex of the Tg2576 Mouse Model of Alzheimer’s Disease

Figure 5

Expression of oxidative damage markers in WT and Tg neocortex. (a) 8-OHG IHC in 3-, 9-, and 18-month-old WT and Tg neocortex. Prominent cytoplasmic staining in Tg neurons is observed throughout the ages. Scale bars, 30 μm. (b) Acrolein IHC showing higher levels in Tg than in WT neurons, starting from the age of 9 months. Scale bars, 30 μm. (c) Double immunofluorescence of 8-OHG (red) in combination with SOD2 (green) in the neocortex of 3-month-old Tg mice, showing partial colocalization of both markers, thus indicating mitochondrial DNA oxidative modifications. Scale bars, 30 μm.
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