Cited by 486Exercise and Physiological ResponsesAdipose Tissue and MetabolismMetabolism, Diabetes, and Cancer

Quercetin increases brain and muscle mitochondrial biogenesis and exercise tolerance

Davis, J. Mark, Murphy, E. Angela, Carmichael, Martin D., Davis, Ben·2009·American Journal of Physiology-Regulatory, Integrative and Comparative Physiology

Abstract

Quercetin is one of a broad group of natural polyphenolic flavonoid substances that are being investigated for their widespread health benefits. These benefits have generally been ascribed to its combination of antioxidant and anti-inflammatory activity, but recent in vitro evidence suggests that improved mitochondrial biogenesis could play an important role. In addition, the in vivo effects of quercetin on mitochondrial biogenesis exercise tolerance are unknown. We examined the effects of 7 days of quercetin feedings in mice on markers of mitochondrial biogenesis in skeletal muscle and brain, and on endurance exercise tolerance. Mice were randomly assigned to one of the following three treatment groups: placebo, 12.5 mg/kg quercetin, or 25 mg/kg quercetin. Following 7 days of treatment, mice were killed, and soleus muscle and brain were analyzed for mRNA expression of peroxisome proliferator-activated receptor-gamma coactivator (PGC-1alpha) and sirtuin 1 (SIRT1), and mitochondrial DNA (mtDNA) and cytochrome c. Additional mice underwent a treadmill performance run to fatigue or were placed in voluntary activity wheel cages, and their voluntary activity (distance, time, and peak speed) was recorded. Quercetin increased mRNA expression of PGC-1alpha and SIRT1 (P < 0.05), mtDNA (P < 0.05) and cytochrome c concentration (P < 0.05). These changes in markers of mitochondrial biogenesis were associated with an increase in both maximal endurance capacity (P < 0.05) and voluntary wheel-running activity (P < 0.05). These benefits of querectin on fitness without exercise training may have important implications for enhancement of athletic and military performance and may also extend to prevention and/or treatment of chronic diseases.

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Crossref · 10.1152/ajpregu.90925.2008

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Authors
Davis, J. M., Murphy, E. A., Carmichael, M. D., & Davis, B.
Affiliations
University of South Carolina (US)
Venue
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
Published
2009-04
Volume
296
Issue
4
Pages
R1071-R1077
ISSN
  • 0363-6119 (ISSN-L)
  • 1522-1490
OpenAlex
W2025150565
Cited by
486
References
34
Citations by year
2026: 16 · 2025: 17 · 2024: 19 · 2023: 21 · 2022: 26 · 2021: 33 · 2020: 31 · 2019: 21 · 2018: 26 · 2017: 20 · 2016: 26 · 2015: 36 · 2014: 42 · 2013: 37 · 2012: 33
FWCI
38.71
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Regulatory, Integrative and Comparative Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
quercetin, flavonoids, mitochondrial biogenesis, exercise tolerance, endurance capacity, PGC-1α, SIRT1, mitochondrial DNA, cytochrome c, skeletal muscle, brain, voluntary wheel running, athletic performance
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Animals, Brain, DNA, Mitochondrial, Gene Expression Regulation, Male, Mice, Inbred ICR, Mitochondria, Mitochondria, Muscle, Physical Endurance, Quercetin, RNA, Messenger, Time Factors, Transcription Factors, Trans-Activators, Exercise Tolerance, Muscle, Skeletal, Muscle Fatigue, Dietary Supplements, Sirtuins, Cytochromes c, Mice, Sirtuin 1

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