Effects of Partial and Total Denervation on the Distribution of Fiber Size of Rat Soleus Muscles: A Quantitative Computer Imaging Analysis.
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- Chien Yu-Yi
- Department of Neurology, Chang Gung Memorial Hospital
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- Chu Nai-Shin
- Department of Neurology, Chang Gung Memorial Hospital
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The effects of partial and total denervation on muscle fibers were studied in rat soleus muscles by quantitative computer imaging analysis. Within 5 weeks after denervation, there was a progressive reduction of the soleus muscle weight in total denervation groups but a gradual recovery beginning in the third week and reaching 75% of the control in the fifth week in the partial denervation group. The reduction of muscle mass was mainly due to the replacement of large and medium-sized fibers by small atrophic fibers.<BR>In totally denervated muscles, cross-sectional fiber area showed a rapid decline after denervation, but the shape of fiber size distribution was nearly normal. On the other hand, partially denervated muscles showed an asymmetrical fiber size distribution with a shift toward large fibers. In control and totally denervated muscles, mean fiber area strongly correlated with the standard deviation from the mean, but in partially denervated muscles, this strong correlation no longer existed and was replaced by larger standard deviations. It is concluded that only partially denervated muscles show significant variations in fiber size.
収録刊行物
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- Acta Histochemica et Cytochemica
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Acta Histochemica et Cytochemica 28 (3), 255-261, 1995
日本組織細胞化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204863138304
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- NII論文ID
- 10008603855
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- NII書誌ID
- AA00508022
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- ISSN
- 13475800
- 00445991
- http://id.crossref.org/issn/00445991
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可