https://scholars.lib.ntu.edu.tw/handle/123456789/589565
標題: | Voluntary exercise ameliorates synaptic pruning deficits in sleep-deprived adolescent mice | 作者: | Tuan, Li-Heng Tsao, Chih-Yu Lee, Lukas Jyuhn-Hsiarn LI-JEN LEE |
關鍵字: | Adolescent; Microglia; Phagocytosis; Sleep deprivation; Synaptic pruning; The noradrenergic system | 公開日期: | 2021 | 卷: | 93 | 來源出版物: | Brain, behavior, and immunity | 摘要: | Adolescence is a critical period for brain development and adequate sleep during this period is essential for physical function and mental health. Emerging evidence has detailed the neurological impacts of sleep insufficiency on adolescents, as was unveiled by our previous study, microglia, one of the crucial contributors to synaptic pruning, is functionally disrupted by lack of sleep. Here, we provided evidence featuring the protective effect and the underlying mechanisms of voluntary exercise (VE) on microglial functions in an adolescent 72 h sleep deprivation (SD) model. We identified that the aberrant hippocampal neuronal activity and impaired short-term memory performance in sleep-deprived mice were prevented by 11 days of VE. VE significantly normalized the SD-induced dendritic spine increment and maintained the microglial phagocytic ability in sleep-deprived mice. Moreover, we found that the amendment of the noradrenergic signal in the central nervous system may explain the preventative effects of VE on the abnormalities of microglial and neuronal functions caused by SD. These data suggested that VE may confer protection to the microglia-mediated synaptic pruning in the sleep-deprived adolescent brains. Therefore, physical exercise could be a beneficial health practice for the adolescents that copes the adverse influence of inevitable sleep insufficiency. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/589565 | ISSN: | 08891591 | DOI: | 10.1016/j.bbi.2020.12.017 | SDG/關鍵字: | adolescent; animal cell; animal experiment; animal model; article; controlled study; dendritic spine; exercise; hippocampus; human; male; microglia; mouse; nonhuman; noradrenergic system; phagocyte; phagocytosis; short term memory; sleep deprivation; syna |
顯示於: | 解剖學暨細胞生物學科所 |
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