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Skeletal Muscle Loss is Associated with TNF Mediated Insufficient Skeletal Myogenic Activation After Burn.


ABSTRACT: Muscle loss accompanies severe burn; in this hyper-catabolic state, muscle undergoes atrophy through protein degradation and disuse. Muscle volume is related to the relative rates of cellular degradation and myogenesis. We hypothesize that muscle atrophy after injury is in part because of insufficient myogenesis associated with the hyper-inflammatory response. The aim of this study was to investigate the role of skeletal myogenesis and muscle cell homeostasis in response to severe burn. Twenty-eight male C57BL6 mice received 25% TBSA scald. Gluteus muscle from these animals was analyzed at days 1, 3, 7, and 14 after injury. Six additional animals without burn served as controls. We showed muscle wet weight and protein content decreased at days 3 and 7 after burn, with elevated tumor necrosis factor (TNF) mRNA expression (P?

SUBMITTER: Song J 

PROVIDER: S-EPMC4615524 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature

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Skeletal Muscle Loss is Associated with TNF Mediated Insufficient Skeletal Myogenic Activation After Burn.

Song Juquan J   Saeman Melody R MR   De Libero Jana J   Wolf Steven E SE  

Shock (Augusta, Ga.) 20151101 5


Muscle loss accompanies severe burn; in this hyper-catabolic state, muscle undergoes atrophy through protein degradation and disuse. Muscle volume is related to the relative rates of cellular degradation and myogenesis. We hypothesize that muscle atrophy after injury is in part because of insufficient myogenesis associated with the hyper-inflammatory response. The aim of this study was to investigate the role of skeletal myogenesis and muscle cell homeostasis in response to severe burn. Twenty-e  ...[more]

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