The purpose of this study was to investigate the relationships between muscle fiber types and myosin light and heavy chains. Rat skeletal muscles were analyzed with histochemical and immunobiochemical techniques. In fiber type composition, soleus and deep portion of gastrocmemius were occupied with type I fibers about 88.0% and 50.3%, respectively. On the other hand, type II fibers were predominant in other fast muscles range from 87.0% to 100%. Myosin light chain subtype patterns were similar to the fiber type composition in each muscle, and there were significant correlations in the ratio between type II b and LC3f, type I and LC1s and LC2s, respectively. Fast type myosin heavy chain was 2.5~5.4 times in fast muscles compared with the soleus, and was significantly correlated with the ratio of type II fibers in each muscle. These results suggested that each type of fibers contain the specific type of myoshin light and heavy chains and the ratio of isomyosins were differ from several muscles or the different portion of same muscle.
雑誌名
熊本大学教養部紀要
巻
27(自然科学編)
ページ
119 - 129
発行年
1992-01-31
ISSN
02865769
書誌レコードID
AN0006671X
フォーマット
application/pdf
形態
1342015 bytes
著者版フラグ
author
日本十進分類法
480.75
その他の言語のタイトル
The relationships between muscle fiber types and myosin light and heavy chains in rat hindlimb skeletal muscles