期刊
OPHTHALMIC RESEARCH
卷 44, 期 3, 页码 173-178出版社
KARGER
DOI: 10.1159/000316478
关键词
Aging; Ganglion cell injury; Glaucoma
Aging is the greatest risk factor for glaucoma, implying that intrinsic age-related changes to retinal ganglion cells, their supporting tissue or both make retinal ganglion cells susceptible to injury. Changes to the ocular vasculature, connective tissue of the optic nerve head and mitochondria, which have been documented with advancing age and shown to be exacerbated in glaucoma, may predispose to glaucomatous injury. When considering such age-related changes, it is difficult to separate pathological change from physiological change, and cause from consequence. The insults that predispose aged retinal ganglion cells to injury are likely to be varied and multiple; therefore, it may be more relevant to identify and treat common mechanisms that predispose to retinal ganglion cell failure and/or death. We suggest that mitochondrial dysfunction, as either a cause or consequence of injury, renders retinal ganglion cells sensitive to degeneration. Therapeutic approaches that target mitochondria and promote energy production may provide a general means of protecting aged retinal ganglion cells from degeneration, regardless of the etiology. Copyright (C) 2010 S. Karger AG, Basel
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