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Translational Stroke Research
Published in: Translational Stroke Research 3/2020

01-06-2020 | Vascular Dementia | Short Communication

Treadmill Exercise Suppresses Cognitive Decline and Increases White Matter Oligodendrocyte Precursor Cells in a Mouse Model of Prolonged Cerebral Hypoperfusion

Authors: Ryo Ohtomo, Keita Kinoshita, Gaku Ohtomo, Hajime Takase, Gen Hamanaka, Kazuo Washida, Mohammad Rashedul Islam, Christiane D. Wrann, Hiroshi Katsuki, Atsushi Iwata, Josephine Lok, Eng H. Lo, Ken Arai

Published in: Translational Stroke Research | Issue 3/2020

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Abstract

Clinical evidence suggests that patients with subcortical ischemic vascular dementia (SIVD) perform better at cognitive tests after exercise. However, the underlying mechanism for this effect is largely unknown. Here, we examined how treadmill exercise changes the cognitive function and white matter cellular pathology in a mouse model of SIVD. Prolonged cerebral hypoperfusion was induced in 2-month-old male C57BL/6J mice by bilateral common carotid artery stenosis. A week later, the mice were randomly divided into a group that received 6-week treadmill exercise and a sedentary group for observation. In multiple behavioral tests (Y-maze, novel object recognition, and Morris water maze tests), the treadmill exercise training was shown to ameliorate cognitive decline in the hypoperfused SIVD mice. In addition, immunohistological analyses confirmed that there was a larger population of oligodendrocyte precursor cells in the subventricular zone of exercised versus sedentary mice. Although further investigations are needed to confirm a causal link between these findings, our study establishes a model and cellular foundation for investigating the mechanisms through which exercise preserves cognitive function in SIVD.
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Metadata
Title
Treadmill Exercise Suppresses Cognitive Decline and Increases White Matter Oligodendrocyte Precursor Cells in a Mouse Model of Prolonged Cerebral Hypoperfusion
Authors
Ryo Ohtomo
Keita Kinoshita
Gaku Ohtomo
Hajime Takase
Gen Hamanaka
Kazuo Washida
Mohammad Rashedul Islam
Christiane D. Wrann
Hiroshi Katsuki
Atsushi Iwata
Josephine Lok
Eng H. Lo
Ken Arai
Publication date
01-06-2020
Publisher
Springer US
Published in
Translational Stroke Research / Issue 3/2020
Print ISSN: 1868-4483
Electronic ISSN: 1868-601X
DOI
https://doi.org/10.1007/s12975-019-00734-7

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