Effects of a single bout of exercise on mitochondria-mediated apoptotic signaling in rat cardiac and skeletal muscles

Su Zi Yoo, Mi Hyun No, Jun Won Heo, Eunwook Chang, Dong Ho Park, Ju Hee Kang, Dae Yun Seo, Jin Han, Su Jeen Jung, Kwan Hwangbo, Hyo Bum Kwak

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14 Scopus citations

Abstract

This study aimed to determine the effects of a single bout exercise on mitochondria-mediated apoptotic signaling in cardiac and skeletal muscles. Fischer 344 rats (4 months old) were randomly divided into the control or a single bout of exercise group (n=10 each). The rats per-formed a single bout of treadmill exercise for 60 min. Mitochondria-me-diated apoptotic signaling (e.g., Bax, Bcl-2, mitochondrial permeability transition pore [mPTP] opening, cytochrome c, and cleaved caspase-3) was measured in cardiac (e.g., left ventricle) and skeletal (e.g., soleus and white gastrocnemius) muscles. A single bout of exercise signifi-cantly decreased mPTP opening sensitivity in all tissues. However, a single bout of exercise did not show any statistical differences in Bax, Bcl-2, cytochrome c, and cleaved caspase-3 in all tissues measured. A single bout of exercise did not show definite results on characteristics of mitochondria-mediated apoptotic signaling. Therefore, further re-search is necessary to provide a more mechanistic understanding of the apoptosis pathway.

Original languageEnglish
Pages (from-to)512-517
Number of pages6
JournalJournal of Exercise Rehabilitation
Volume15
Issue number4
DOIs
StatePublished - 2019

Bibliographical note

Publisher Copyright:
© 2019 Korean Society of Exercise Rehabilitation.

Keywords

  • Apoptosis
  • Exercise
  • Heart
  • Mitochondria
  • Skeletal muscle

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