Different exercises can modulate the differentiation/maturation of neural stem/progenitor cells after photochemically induced focal cerebral infarction

森下, 紗帆

doi:https://doi.org/10.1002/brb3.1535

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Different exercises can modulate the differentiation/maturation of neural stem/progenitor cells after photochemically induced focal cerebral infarction

http://hdl.handle.net/10271/00003723

名前 / ファイル	ライセンス	アクション
論文本文 (1.5 MB)

Item type

学位論文 / Thesis or Dissertation(1)

公開日

2020-04-30

タイトル

Different exercises can modulate the differentiation/maturation of neural stem/progenitor cells after photochemically induced focal cerebral infarction

言語

eng

キーワード

主題

cerebral infarction

キーワード

主題

differentiation/maturation

キーワード

主題

exercise

キーワード

主題

neurogenesis.

資源タイプ

資源タイプ識別子

http://purl.org/coar/resource_type/c_db06

資源タイプ

doctoral thesis

アクセス権

open access

アクセス権URI

http://purl.org/coar/access_right/c_abf2

その他のタイトル

光化学反応による局所脳梗塞において、異なった運動は神経幹細胞/前駆細胞の分化/成熟を調節する

著者

森下, 紗帆

書誌情報

en : Brain and behavior

巻 10, 号 3, p. e01535, 発行日 2020-01-27

出版者

John Wiley & Sons

言語

抄録

内容記述タイプ

Abstract

内容記述

Introduction: Exercise therapies during rehabilitation significantly promote recovery from various deficits after cerebral infarction, which is mediated by neuronal plasticity with distinct inputs. Although adult neurogenesis can also be modulated by neuronal activity before synaptogenesis, how distinct exercises contribute to the neurological reorganization of the injured cerebral cortex remains unclear. In the present study, we aimed to elucidate the effects of different exercise therapies on motor recovery and neuronal reorganization after photochemically induced focal cerebral infarction.
Methods: Here, we examined the effects of three different exercises-(a) forced lower-intensity and (b) higher-intensity treadmill exercises, and (c) voluntary exercise with wheel running-on motor recovery and adult neurogenesis in a rat model of focal cerebral infarction. Photochemically induced thrombosis (PIT) was used to generate focal infarction in rats that was mostly confined to their motor cortices.
Results: Beam walking tests showed that recovery after PIT-induced cortical infarction differed in acute and chronic stages and was influenced by the type of exercise. Furthermore, forced low-intensity training had more positive effects on functional recovery than other exercises or control. To evaluate the production of newly generated cells including de novo neurogenesis, we performed lineage analysis with BrdU labeling and immunofluorescence experiments. Lower-intensity treadmill exercise increased the number of BrdU/NeuN colabeled cells, but not total BrdU-retaining or BrdU/Sox2-colabeled cells, in the peri-infarct region of the ipsilateral cortex. In contrast, high-intensity treadmill or voluntary exercises had the opposite effects.
Conclusions: These results suggest that neuronal maturation can be differently modulated by distinct exercises and that low-intensity treadmill exercise could result in more potent generation of mature neurons. This also suggests the possibility that the generation of neural stem/progenitor cells and differentiation might be modulated by rehabilitation-mediated neural plasticity.

言語

学位名

博士（医学）

学位の区分

内容記述

doctoral

学位の分野

内容記述

医学系研究科

学位授与機関

学位授与機関識別子Scheme

kakenhi

学位授与機関識別子

13802

学位授与機関名

浜松医科大学

学位授与年月日

2020-03-09

学位授与番号

甲第824号

EISSN

収録物識別子タイプ

EISSN

収録物識別子

2162-3279

PubMed番号

識別子タイプ

PMID

Versions

Ver.1

2023-06-20 16:35:20.341818

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Different exercises can modulate the differentiation/maturation of neural stem/progenitor cells after photochemically induced focal cerebral infarction

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