Cited by 114Mitochondrial Function and PathologyMuscle Physiology and DisordersCoenzyme Q10 studies and effects

The DOI matches its Crossref record; 52 of the 52 references it cites were found in a registry or an index.

Simvastatin impairs ADP-stimulated respiration and increases mitochondrial oxidative stress in primary human skeletal myotubes

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Abstract

Statins, the widely prescribed cholesterol-lowering drugs for the treatment of cardiovascular disease, cause adverse skeletal muscle side effects ranging from fatigue to fatal rhabdomyolysis. The purpose of this study was to determine the effects of simvastatin on mitochondrial respiration, oxidative stress, and cell death in differentiated primary human skeletal muscle cells (i.e., myotubes). Simvastatin induced a dose-dependent decrease in viability of proliferating and differentiating primary human muscle precursor cells, and a similar dose-dependent effect was noted in differentiated myoblasts and myotubes. Additionally, there were decreases in myotube number and size following 48 h of simvastatin treatment (5 μM). In permeabilized myotubes, maximal ADP-stimulated oxygen consumption, supported by palmitoylcarnitine+malate (PCM, complex I and II substrates) and glutamate+malate (GM, complex I substrates), was 32-37% lower (P<0.05) in simvastatin-treated (5 μM) vs control myotubes, providing evidence of impaired respiration at complex I. Mitochondrial superoxide and hydrogen peroxide generation were significantly greater in the simvastatin-treated human skeletal myotube cultures compared to control. In addition, simvastatin markedly increased protein levels of Bax (proapoptotic, +53%) and Bcl-2 (antiapoptotic, +100%, P<0.05), mitochondrial PTP opening (+44%, P<0.05), and TUNEL-positive nuclei in human skeletal myotubes, demonstrating up-regulation of mitochondrial-mediated myonuclear apoptotic mechanisms. These data demonstrate that simvastatin induces myotube atrophy and cell loss associated with impaired ADP-stimulated maximal mitochondrial respiratory capacity, mitochondrial oxidative stress, and apoptosis in primary human skeletal myotubes, suggesting that mitochondrial dysfunction may underlie human statin-induced myopathy.

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Crossref · 10.1016/j.freeradbiomed.2011.10.449

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Metadata

Authors
Kwak, H.-B., Thalacker-Mercer, A., Anderson, E. J., Lin, C.-T., Kane, D. A., Lee, N.-S., Cortright, R. N., Bamman, M. M., & Neufer, P. D.
Affiliations
  • East Carolina University (US)
  • University of Alabama at Birmingham (US)
Corresponding author
Neufer, P. Darrell
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2012-01
Volume
52
Issue
1
Pages
198-207
ISSN
0891-5849 (ISSN-L)
OpenAlex
W1985595789
Cited by
114
References
52
Citations by year
2026: 2 · 2025: 3 · 2024: 7 · 2023: 4 · 2022: 4 · 2021: 2 · 2020: 6 · 2019: 13 · 2018: 10 · 2017: 10 · 2016: 11 · 2015: 11 · 2014: 12 · 2013: 12 · 2012: 7
FWCI
4.03
Type
journal article
Language
en
Open access
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (R01AG017896)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK073488, R01DK075880, R01DK074825)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Coenzyme Q10 studies and effects
Keywords
simvastatin, statin-induced myopathy, skeletal muscle, myotubes, mitochondrial respiration, complex I, mitochondrial oxidative stress, superoxide, hydrogen peroxide, apoptosis, Bax, Bcl-2, mitochondrial permeability transition, myotube atrophy, rhabdomyolysis
MeSH terms
Adenosine Diphosphate, Anticholesteremic Agents, Cell Differentiation, Dose-Response Relationship, Drug, Humans, Hydrogen Peroxide, Mitochondria, Muscular Diseases, Oxygen Consumption, Superoxides, Signal Transduction, Gene Expression, Apoptosis, Oxidative Stress, Muscle Fibers, Skeletal, Cell Respiration, Respiratory System Agents, Proto-Oncogene Proteins c-bcl-2, Simvastatin, Myoblasts, Electron Transport Complex I, Primary Cell Culture

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