HOW TO PREVENT THE RETIRING BRAIN FROM DEGENERATING

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SWAAB, DF
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R74 [神经病学与精神病学];
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In organs other than the brain, cell activation seems to increase "wear and tear", e.g. by increased free-radical formation, and so to cause an increased rate of aging. However, activation of nerve cells within the physiological range seems to lead to maintenance of neurons during aging, possibly by preferentially stimulating the action of protective mechanisms such as DNA repair. This "use it or lose it" principle might explain why in aging and neurodegenerative diseases certain neurons degenerate while others do not, and why recovery of various neuronal systems during aging has been obtained by restoration of the missing stimulus. Consequently, neuronal activation might provide a means of prolonging its optimal function for the full length of our natural life span, also following retirement.
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页码:S150 / S152
页数:3
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