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. Author manuscript; available in PMC: 2014 Feb 8.
Published in final edited form as: Gerontology. 2013 Feb 8;59(4):297–306. doi: 10.1159/000346169

Figure 3.

Figure 3

Model of oxidative stress and resulting protective or pathologic immune response. Through the antioxidant systems including the Nrf2 signaling system and the innate immune system’s activation by oxidation specific epitopes (OSEs) the retinal microenvironment can prevent itself from oxidative damage. When overwhelmed by exogenous stressors such as cigarette smoke, chronic inflammation may result leading to a pathologic immune response.

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