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Nat Rev Neurosci. 2006 Apr;7(4):278-94.

Ageing and neuronal vulnerability.

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  • 1Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224-6825, USA. mattsonm@grc.nia.nih.gov

Abstract

Everyone ages, but only some will develop a neurodegenerative disorder in the process. Disease might occur when cells fail to respond adaptively to age-related increases in oxidative, metabolic and ionic stress, thereby resulting in the accumulation of damaged proteins, DNA and membranes. Determinants of neuronal vulnerability might include cell size and location, metabolism of disease-specific proteins and a repertoire of signal transduction pathways and stress resistance mechanisms. Emerging evidence on protein interaction networks that monitor and respond to the normal ageing process suggests that successful neural ageing is possible for most people, but also cautions that cures for neurodegenerative disorders are unlikely in the near future.

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