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The Changes of Muscle FGF-6 Expression at Different Time Points after Exercise-induced Muscle Damage
1Key Laboratory of Exercise and Health Sciences, Shanghai University of Sport, Ministry of Education, 399 Changhai Road, Shanghai 200438, China. yuxinkaijiang@126.com.
Objective:
To investigate the changes of fibroblast growth factor (FGF)-6 expression in the regeneration and repair process after exercise-induced muscle damage (EIMD) and the relationship with skeletal muscle regeneration and repair.
Methods:
The expression of FGF-6 at different time points was examined by reverse transcription-polymerase chain reaction (PCR) and immunohistochemistry staining after a downhill treadmill exercise. Skeletal muscle injury and regeneration at different times after EIMD was assessed by haematoxylin and eosin (H and E) staining.
Results:
The FGF-6 protein expression was initially elevated and followed by a gradual reduction, while the changes of FGF-6 mRNA were almost all raised after the treadmill exercise.
Conclusion:
The results point out that FGF-6 is closely related to skeletal muscle regeneration and repair, probably implying a dual function in muscle regeneration.
