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- W3097218148 abstract "Abstract Hippocampal atrophy and cognitive decline are common sequelae of many neurodegenerative disorders, including stroke. To determine whether cognitive decline can be ameliorated by exercise-induced neurogenesis, C57BL/6 mice in which a unilateral hippocampal injury had been induced by injecting the vasoconstrictor endothelin-1 into their right hippocampus, were run voluntarily for 21 days on a running-wheel. We found the severe deficits in spatial learning, as detected by active place-avoidance task, following injury were almost completely restored in animals that ran whereas those that did not run showed no improvement. We show the increase in neurogenesis found in both the injured and contralateral hippocampi following running was responsible for the restoration of learning since bilateral ablation of newborn doublecortin (DCX)-positive neurons abrogated the cognitive improvement, whereas unilateral ablations of DCX-positive neurons did not prevent recovery, demonstrating that elevated neurogenesis in either the damaged or intact hippocampus is sufficient to reverse hippocampal injury-induced deficits." @default.
- W3097218148 created "2020-11-09" @default.
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- W3097218148 date "2020-11-06" @default.
- W3097218148 modified "2023-10-16" @default.
- W3097218148 title "Exercise reverses learning deficits induced by hippocampal injury by promoting neurogenesis" @default.
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- W3097218148 doi "https://doi.org/10.1038/s41598-020-76176-1" @default.
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