期刊
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES
卷 1519, 期 1, 页码 34-45出版社
WILEY
DOI: 10.1111/nyas.14933
关键词
aging; astrocyte; microglia; myelin; oligodendrocyte; progenitor; remyelination
Aging has significant effects on the functional phenotype of glial cells, leading to an inflammatory microenvironment and increased risk of neuron and synapse loss. Additionally, aging glial cells have negative implications for central nervous system remyelination.
Aging is a major risk factor for several neurodegenerative diseases and is associated with cognitive decline. In addition to affecting neuronal function, the aging process significantly affects the functional phenotype of the glial cell compartment, comprising oligodendrocyte lineage cells, astrocytes, and microglia. These changes result in a more inflammatory microenvironment, resulting in a condition that is favorable for neuron and synapse loss. In addition to facilitating neurodegeneration, the aging glial cell population has negative implications for central nervous system remyelination, a regenerative process that is of particular importance to the chronic demyelinating disease multiple sclerosis. This review will discuss the changes that occur with aging in the three main glial populations and provide an overview of the studies documenting the impact these changes have on remyelination.
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