Adult neurogenesis is functionally associated with AD-like neurodegeneration
Alzheimer's disease (AD) is predominantly characterized by progressive neuronal loss in the brain. It has been recently found that adult neurogenesis in the hippocampal dentate gyrus of AD patients is significantly enhanced, while its functional significance is still unknown. By using an AD-like neurodegeneration mouse model, we show here that neurogenesis in the dentate gyrus was neurodegenerative stage-dependent. At early stages of neurodegeneration, neurogenesis was significantly enhanced and newly generated neurons migrated into the local neuronal network. Up to late stages of neurodegeneration, however, the survival of newly generated neurons was impaired so that the enhanced neurogenesis could not be detected anymore. Most interestingly, these dynamic changes in neurogenesis were correlated with the severity of neuronal loss in the dentate gyrus, indicating that neurogenesis may work as a self-repairing mechanism to compensate for neurodegeneration. Therefore, to enhance endogenous neurogenesis at early stages of neurodegeneration may be a valuable strategy to delay neurodegenerative progress.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2008 |
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| Erschienen: |
2008 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:29 |
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| Enthalten in: |
Neurobiology of disease - 29(2008), 2 vom: 15. Feb., Seite 316-26 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Chen, Qian [VerfasserIn] |
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| Anmerkungen: |
Date Completed 04.04.2008 Date Revised 05.11.2023 published: Print-Electronic Citation Status MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM174805268 |
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| 245 | 1 | 0 | |a Adult neurogenesis is functionally associated with AD-like neurodegeneration |
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| 520 | |a Alzheimer's disease (AD) is predominantly characterized by progressive neuronal loss in the brain. It has been recently found that adult neurogenesis in the hippocampal dentate gyrus of AD patients is significantly enhanced, while its functional significance is still unknown. By using an AD-like neurodegeneration mouse model, we show here that neurogenesis in the dentate gyrus was neurodegenerative stage-dependent. At early stages of neurodegeneration, neurogenesis was significantly enhanced and newly generated neurons migrated into the local neuronal network. Up to late stages of neurodegeneration, however, the survival of newly generated neurons was impaired so that the enhanced neurogenesis could not be detected anymore. Most interestingly, these dynamic changes in neurogenesis were correlated with the severity of neuronal loss in the dentate gyrus, indicating that neurogenesis may work as a self-repairing mechanism to compensate for neurodegeneration. Therefore, to enhance endogenous neurogenesis at early stages of neurodegeneration may be a valuable strategy to delay neurodegenerative progress | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, N.I.H., Extramural | |
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| 650 | 4 | |a Research Support, U.S. Gov't, Non-P.H.S. | |
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| 700 | 1 | |a Xiong, Xiaoli |e verfasserin |4 aut | |
| 700 | 1 | |a Sisodia, Sangram S |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Ya-Ping |e verfasserin |4 aut | |
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