| 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 |
Comparison of the sarcomere alterations after muscle contraction and tension loading in the rat soleus muscle. |
|
言語 |
en |
| 作成者 |
Matsuura, Natsue
Kawamata, Seiichi
Ozawa, Junya
Kai, Satoru
Sakakima, Harutoshi
Abiko, Sachiko
|
| 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 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2002 Blackwell Publishing. The definitive version is available at www.blackwell-synergy.com |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
skeletal muscle |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
lesion |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
nerve stimulation |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
tension |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
electron microscopy |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
490 |
| 内容記述 |
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|
内容記述 |
Muscle contraction induced by 30 min of continuous nerve stimulation at 50 Hz resulted in sarcomere changes of the soleus muscle in the rat in our previous study. To further investigate the cause of sarcomere alterations, the sciatic nerve was electrically stimulated intermittently for 30 min. Nerve stimulation was also conducted after cutting the tendons of the soleus, gastrocnemius and plantaris muscles in order to prevent imposing tension on these muscles as a result to their own contractions. In addition, the muscles were pulled by weights via their tendons to load high tension for 30 min without nerve stimulation. Sarcomere alterations immediately after treatments were quantified by electron microscopy. The percentages of aberrant sarcomere areas of the soleus muscle were 25.7 ± 16.4% (mean ± SD) in the group of intermittent nerve stimulation with intact tendons and 21.1 ± 35.4% in the group of tenotomy and continuous nerve stimulation, which were roughly equal to or more severe than the group of continuous nerve stimulation with intact tendons (18.8 ± 15.8%) in our previous study. Sarcomere alterations consisted mainly of hypercontraction in these groups. Almost all sarcomere changes in the tension-loaded (pulled) soleus muscles were scarce myofilaments (1.7 ± 1.0% by 600 g; 4.5 ± 2.9% by 1200 g), and hypercontraction was not observed. These findings indicate that neither high tension nor a decrease of muscle blood flow during continuous contraction seems to be the primary cause of sarcomere alterations in the present study. There are probably other causes that produce aberrant sarcomeres. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Blackwell |
| 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 |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1046/j.0022-7722.2002.00022.x |
| 関連情報 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1046/j.0022-7722.2002.00022.x |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1447-6959 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11619036 |
| 開始ページ |
|
|
開始ページ |
169 |
| 書誌情報 |
Anatomical Science International
Anatomical Science International
巻 77,
号 3,
p. 169-174,
発行日 2002-09
|
| 旧ID |
21532 |
ASI_77_169.pdf (1.2 MB)
