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We analyzed by LCMS lipid extracts of lens, retina (MNR) and RPE/Choroid (MPEC) from macaque monkeys 2–25 yr in age to determine their content of 7-ketocholesterol (7KCh) as function of age. In addition we also analyzed drusen capped with retinal pigment epithelium (RPE), RPE, and neural retina from human donors age 72–95 yr. The lowest 7KCh levels were found in monkey lens (<0.5–3.5 pmol 7KCh...
Cadmium is a naturally occurring, highly toxic, metallic element. It pollutes the environment as a result of industrial activity and accumulates in human tissues with a long biological half-life. Cadmium content has been demonstrated to increase in human retinal tissues as a function of age and tobacco smokers have approximately twice as much cadmium in retinal tissues than non-smokers. Smoking is...
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