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Effects of short-term denervation and subsequent reinnervation on motor endplates and the soleus muscle in the rat

https://hiroshima.repo.nii.ac.jp/records/2006306
https://hiroshima.repo.nii.ac.jp/records/2006306
5fc0e652-0db3-4288-8699-c9d7ab46b5a7
名前 / ファイル ライセンス アクション
AOHC_63_495.pdf AOHC_63_495.pdf (1.5 MB)
Item type デフォルトアイテムタイプ_(フル)(1)
公開日 2023-03-18
タイトル
タイトル Effects of short-term denervation and subsequent reinnervation on motor endplates and the soleus muscle in the rat
言語 en
作成者 Sakakima, Harutoshi

× Sakakima, Harutoshi

en Sakakima, Harutoshi

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Kawamata, Seiichi

× Kawamata, Seiichi

en Kawamata, Seiichi

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Kai, Satoru

× Kai, Satoru

en Kai, Satoru

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Ozawa, Junya

× Ozawa, Junya

en Ozawa, Junya

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Matsuura, Natsue

× Matsuura, Natsue

en Matsuura, Natsue

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
主題Scheme NDC
主題 490
内容記述
内容記述 The rat sciatic nerve was locally frozen, and changes in the nerve, motor endplates, and the soleus muscle were examined for up to 6 weeks by light and electron microscopy. The wet weights of denervated soleus muscles compared with contralateral values progressively declined to a minimum at 2 weeks after injury (60.7±2.5%) and began to reverse following 3 weeks. The sciatic nerve thoroughly degenerated after freezing. However, numerous regenerated myelinated and thin nerve fibers were observed at 3 weeks. They were considerably enlarged but still smaller than normal counterparts at 6 weeks postoperatively. Nerve terminals containing synaptic vesicles of endplates disappeared at day 1 and mostly reappeared at 3 weeks (about 700f the endplates). All endplates examined were reinnervated at 4, 5, and 6 weeks. On the other hand, postsynaptic folds of muscle fibers seemed to be only slightly influenced by denervation or reinnervation. Ultrastructural alterations of myofibrils, in particular the loss of register, immediately appeared after denervation, spread progressively, peaked at 2 weeks, ameliorated following reinnervation, and became significantly normalized at 6 weeks after freezing. The proportion of type II fibers in the soleus muscle similary showed an increase and a decrease with a short delay in response to denervation and reinnervation, respectively. This study clearly demonstrated that the nerve supply affects the ultrastructural integrity of skeletal muscles. In addition, changes in the endplates and the soleus muscle evaluated in this study after short-term denervation are largely reversible following reinnervation.
言語 en
出版者
出版者 International Society of Histology and Cytology
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
関連情報
識別子タイプ DOI
関連識別子 10.1679/aohc.63.495
関連情報
識別子タイプ PMID
関連識別子 11201208
関連情報
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1679/aohc.63.495
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA1068990X
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0914-9465
開始ページ
開始ページ 495
書誌情報 Archives of Histology and Cytology
Archives of Histology and Cytology

巻 63, 号 5, p. 495-506, 発行日 2000
旧ID 20794
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