Apoptotic changes in a full-lengthened immobilization model of rat soleus muscle
- Authors
- Suh, Hye Rim; Park, Eui Ho; Moon, Sun Wook; Kim, Ji Won; Cho, Hwi Young; Han, Hee Chul
- Issue Date
- Feb-2019
- Publisher
- John Wiley & Sons Inc.
- Keywords
- apoptosis; Bax; casting; lengthened immobilization; lengthening; soleus
- Citation
- Muscle and Nerve, v.59, no.2, pp 263 - 269
- Pages
- 7
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Muscle and Nerve
- Volume
- 59
- Number
- 2
- Start Page
- 263
- End Page
- 269
- URI
- https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/2408
- DOI
- 10.1002/mus.26359
- ISSN
- 0148-639X
1097-4598
- Abstract
- Introduction: Lengthened immobilization may prevent muscle shortening, and help maintain normal muscle length. However, its apoptotic effects remain unclear. We evaluated the effects of long-term immobilization on apoptotic proteins.
Methods: Rat soleus muscles were immobilized by casting in a neutral (NEUT) or lengthened (LENG) position for 21 days. We evaluated dynamic weight load and muscle atrophy following the 21-day period using hematoxylin and eosin staining. We measured Bax (pro-apoptotic Bcl-2 family member), MyoD (myogenic differentiation factor D), MYH (myosin heavy chain), and cleaved poly(ADP-ribose)polymerase levels and examined apoptotic nucleus expression.
Results: Decreased dynamic weight load and muscle atrophy changes were observed in LENG. Both NEUT and LENG showed significantly reduced levels of MYH. LENG showed a significant increase in Bax and MyoD expression as well as in the number of apoptotic nuclei.
Conclusions: Long-term lengthened immobilization may increase apoptotic changes and decrease muscle formation proteins in muscle. Muscle Nerve 59:263-269, 2019
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- Appears in
Collections - 1. Basic Science > Department of Physiology > 1. Journal Articles
- 4. Research institute > Neuroscience Research Institute > 1. Journal Articles
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