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- W2141954135 abstract "This review will discuss the formation and potential implications of 7-ketocholesterol (7KCh) in the retina. 7KCh is a proinflammatory oxysterol known to be present in high amounts in oxidized LDL deposits associated with atheromatous plaques. 7KCh is generated in situ in these lipoprotein deposits where it can accumulate and reach very high concentrations. In normal primate retina, 7KCh has been found associated with lipoprotein deposits in the choriocapillaris, Bruch's membrane, and the retinal pigment epithelium (RPE). In photodamaged rats, 7KCh has been found in the neural retina in areas of high mitochondrial content, ganglion cells, photoreceptor inner segments and synapses, and the RPE. Intermediates found by LCMS indicate 7KCh is formed via a free radical-mediated mechanism catalyzed by iron. 7KCh seems to activate several kinase signaling pathways that work via nuclear factor κB and cause the induction of vascular endothelial growth factor, interleukin (IL)-6, and IL-8. There seems to be little evidence of 7KCh metabolism in the retina, although some form of efflux mechanism may be active. The chronic mode of formation and the potent inflammatory properties of 7KCh indicate it may be an age-related risk factor in aging diseases such as atherosclerosis, Alzheimer's, and age-related macular degeneration." @default.
- W2141954135 created "2016-06-24" @default.
- W2141954135 creator A5021429317 @default.
- W2141954135 creator A5053678052 @default.
- W2141954135 date "2010-10-01" @default.
- W2141954135 modified "2023-10-18" @default.
- W2141954135 title "Cholesterol oxidation in the retina: implications of 7KCh formation in chronic inflammation and age-related macular degeneration" @default.
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