Relationship between extensibility and collagen expression in immobilized rat skeletal muscle

被引：32

作者：

Honda, Yuichiro ^{[1
,2
]}

Tanaka, Miho ^{[3
]}

Tanaka, Natsumi ^{[4
]}

Sasabe, Ryo ^{[1
,2
]}

Goto, Kyo ^{[2
]}

Kataoka, Hideki ^{[2
]}

Sakamoto, Junya ^{[4
]}

Nakano, Jiro ^{[4
]}

Okita, Minoru ^{[2
]}

机构：

[1] Nagasaki Univ Hosp, Dept Rehabil, 1-7-1 Sakamoto, Nagasaki 8528501, Japan

[2] Nagasaki Univ, Grad Sch Biomed Sci, Dept Locomot Rehabil Sci, Nagasaki, Japan

[3] Iizuka Hosp, Dept Rehabil, Iizuka, Fukuoka, Japan

[4] Nagasaki Univ, Grad Sch Biomed Sci, Dept Phys Therapy Sci, Nagasaki, Japan

来源：

MUSCLE & NERVE | 2018年 / 57卷 / 04期

关键词：

collagen expression; extensibility; immobilization; muscle contracture; passive tension; slope value; GROWTH-FACTOR-I; SOLEUS MUSCLE; FIBRIL ARRANGEMENT; SARCOMERE-LENGTH; JOINT MOBILITY; SMOOTH-MUSCLE; TENSION; ORGANIZATION; ENDOMYSIUM; ULTRASOUND;

D O I：

10.1002/mus.26011

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

IntroductionThis study investigated longitudinal changes in muscle extension and collagen expression in an immobilized rat soleus muscle, and assessed the relationship between both elements. MethodsSoleus muscles of the control and immobilization groups (1, 2, 4, 8, and 12 weeks) were used for analysis of muscle extensibility and collagen expression. ResultsThe slope value/physiological cross-sectional area (PCSA; a parameter for muscle extensibility) and hydroxyproline (a parameter for collagen expression) were significantly higher in the immobilization group than in the control group for all experimental time points. In the immobilization group, both factors were significantly higher at 4, 8, and 12 weeks than at 1 and 2 weeks after immobilization. A significant positive correlation was observed between the slope value/PCSA and hydroxyproline expression. DiscussionThe present study indicated that a decrease in muscle extensibility depended on collagen overexpression in immobilized rat soleus muscles. Muscle Nerve57: 672-678, 2018

引用

页码：672 / 678

页数：7

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