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The RPE/choroid of aged animals demonstrates iron accumulation and associated alterations in iron homeostasis. Iron accumulation with age may impair the phagocytosis and lysosomal functions of retinal pigment epithelial cells in the aged RPE/choroid. Therefore, age-related changes of iron homeostasis in the RPE could increase the susceptibility of the tissue to genetic mutations associated with AMD.
Chen et al. (Wed,) studied this question.
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