ID 30474
JaLCDOI
フルテキストURL
Thumnail fulltext.pdf 1.16 MB
著者
Takahara, Yasuhiro Okayama University
Senda, Masuo Okayama University
Hashizume, Hiroyuki Okayama Univeristy
Yagata, Yukihisa Okayama University
Inoue, Hajime Okayama University
抄録

We observed differences in the capillary architecture of the skeletal muscles that have different fiber metabolism. The soleus, the vastus intermedius and the tibialis anterior muscles of adult Wistar rats were prepared using two different techniques. Samples for adenosine triphosphatase (ATPase) staining were prepared following Dubovitz's method, and the distributions of fiber type, Types 1, 2A and 2B, were analyzed. Then, corrosion casts of capillary architecture of these muscles prepared following Murakami's method were observed with a scanning electron microscope (SEM) and compared with the fiber distribution. The fiber type composition of the soleus muscle showed Type 1 (slow-twitch) dominance and that of the vastus intermedius and the tibialis anterior muscle showed Type 2 (fast-twitch) dominance. The capillaries of the soleus muscle were tortuous, and this was thought to be advantageous for blood supply. In contrast, the capillaries of the vastus intermedius and tibialis anterior muscles had a relatively parallel pattern. Additionally, two different patterns of capillary architecture that appeared to correspond to certain metabolic characteristic of different muscle fiber types were preserved with corrosion casting. In conclusion, comparative studies on capillary architecture of the skeletal muscles are useful for analyses of its function.

キーワード
skeletal muscle
ATPase staining
muscle fiber type
corrosion cast
capillary architecture
Amo Type
Article
発行日
1996-08
出版物タイトル
Acta Medica Okayama
50巻
4号
出版者
Okayama University Medical School
開始ページ
211
終了ページ
218
ISSN
0386-300X
NCID
AA00508441
資料タイプ
学術雑誌論文
言語
English
論文のバージョン
publisher
査読
有り
PubMed ID
Web of Sience KeyUT
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