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- W2947791363 abstract "The level of cerebellar activity in stroke patients has been shown to correlate with the extent of functional recovery. We reasoned that the cerebellum may be an important player in post-stroke rehabilitation. Because the neurons in the deep cerebellar nuclei (DCN) represent virtually all of the output from the cerebellum, in this study, using environmental enrichment (EE) to promote rehabilitation, we investigated the influence of the optogenetic neuronal modulation of DCN on EE-induced rehabilitation. We found that neuronal inhibition of the DCN almost completely blocked motor recovery in EE treated mice, but the stroke mice with neuronal activation of the DCN achieved a similar recovery level as those in the EE treated group. No difference was observed in anxiety-like behavior. Moreover, <i>Htr2a</i> in the DCN, the gene encoding <i>5-HT2A</i> receptor, was shown to be a hub gene in the protein-protein interaction network identified using RNA-seq. This indicated that <i>5-HT2A</i> receptor-mediated signaling may be responsible for DCN-dependent functional improvement in EE. We further verified this using the <i>5-HT2A</i> receptor antagonist, MDL100907, to inhibit the function of <i>5-HT2A</i> receptor in the DCN. This treatment resulted in impaired recovery in EE treated mice, who performed at a level as poor as the stroke-only group. Thus, this work contributes to an understanding of the importance of the DCN activation in EE-induced post-stroke rehabilitation. Attempts to clarify the mechanism of <i>5-HT2A</i> receptor-mediated signaling in the DCN may also lead to the creation of a pharmacological mimetic of the benefits of EE-induced rehabilitation." @default.
- W2947791363 created "2019-06-07" @default.
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- W2947791363 date "2019-01-01" @default.
- W2947791363 modified "2023-09-28" @default.
- W2947791363 title "The Neuronal Activation of Deep Cerebellar Nuclei Is Essential for Environmental Enrichment-Induced Post-Stroke Motor Recovery" @default.
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- W2947791363 doi "https://doi.org/10.14336/ad.2018.1220" @default.
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