Coenzyme Q10 reverses mitochondrial dysfunction in atorvastatin-treated mice and increases exercise endurance
Protocol
Animal and cell experiment (from the abstract): statin-treated mice — atorvastatin, or pravastatin at ten times the atorvastatin dose — with ubiquinone content, mitochondrial function and physical performance (exercise endurance, muscle mass, strength) examined.
Cultured myocytes to study energy metabolism with statin treatment (oxygen utilization, lactate production).
Coenzyme Q10 treatment in atorvastatin-treated mice to test reversal of the mitochondrial dysfunction and the endurance loss.
The number of animals is not stated in the abstract.
Key Findings
Atorvastatin-treated mice developed muscular mitochondrial dysfunction due to ubiquinone (CoQ10) deficiency and a decrease in exercise endurance — without loss of muscle mass or strength
Pravastatin at ten times the atorvastatin dose had no such effects
In cultured myocytes, the atorvastatin-related fall in mitochondrial activity lowered oxygen utilization and raised lactate production
CoQ10 treatment in atorvastatin-treated mice reversed the mitochondrial dysfunction and the fall in oxygen utilization, and improved exercise endurance
Mechanism proposed: statins inhibit HMG-CoA reductase, which also supplies the isoprenoid residues of ubiquinone — the respiratory-chain coenzyme
Practical Application (not medical advice)
In mice, atorvastatin caused ubiquinone deficiency, mitochondrial dysfunction and reduced running endurance with muscle mass and strength intact; CoQ10 supplementation reversed the mitochondrial defect and restored endurance; pravastatin at ten times the dose did not impair endurance. This is a mechanism in an animal model, not evidence that CoQ10 helps a statin-treated athlete.
Hypothesis-generating, not practical guidance. Any decision about CoQ10 with statins — only with a physician
Limitations
Mouse model — not human, not a trained athlete
Human RCTs of CoQ10 with statins are not part of this paper; their results are mixed/insufficient
How this entry was checked and changed
Why this level
regraded 2026-09-27 from C+: animal and cell data, no human outcome
Content correction 2026-09-27
Level C+ -> C per KB-LEVEL-RUBRIC (animal and cell data). Sport "running" -> "general" (treadmill endurance in mice is not a sport population).
"REF-503 (Marcoff & Thompson 2007 systematic review)" -> REF-503 is Murlasits & Radák 2014; the Marcoff & Thompson and Deichmann 2012 citations are not in the base and were removed.
Key Findings now carry the abstract's actual results: endurance fell without loss of muscle mass/strength, pravastatin at 10× dose had no effect, myocyte oxygen utilization/lactate; lead bullet now states the finding and its animal scope.
2026-09-28: added Protocol from the abstract (Europe PMC PMID 22653988).