| Project/Area Number |
24650309
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Rehabilitation science/Welfare engineering
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| Research Institution | Kanazawa University |
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Principal Investigator |
TANAKA Shoji 金沢大学, 保健学系, 助教 (70422657)
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| Co-Investigator(Renkei-kenkyūsha) |
NAKAGAWA Takao 金沢大学, 保健学系, 教授 (40217675)
FUNAKOSHI Hiroshi 旭川医科大学, 教育研究推進センター, 教授 (40273685)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | リハビリテーション / 脱神経筋 / ストレッチ |
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| Research Abstract |
Although the electrical stimulation and stretching are often used in rehabilitation to treat denervated muscles, an accomplished treatment method has not been established. We therefore investigated the effect of stretch to skeletal muscle fibrosis and atrophy using an animal model of muscle denervation. The transforming growth factor-beta 1, alpha-smooth muscle actin and collagen which are related to tissue fibrosis, myostatin, which controls the muscle mass, and muscle RING-Finger Protein-1 and atrogin-1, which are muscle specific ubiquitin kinases, were up-regulated in plantaris muscle in early stage of sciatic nerve denervation. Furthermore, these factors were significant increased after 0.5 times/min passive stretch in denervated muscle compared with non-stretched denervated muscle. These results might suggest that the slow stretching exercise promotes fibrosis and atrophy in denervated muscle.
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