Evidence map›Paper›PMID 33735837›Full record

ArticleAging2021

A ketogenic diet impacts markers of mitochondrial mass in a tissue specific manner in aged mice.

Zeyu Zhou, Kevork Hagopian, José A López-Domínguez, Kyoungmi Kim, Mittal Jasoliya, Megan N Roberts, Gino A Cortopassi, Megan R Showalter, Bryan S Roberts, José A González-Reyes and 3 more

Open access · greenAbstract read
In one paragraph

Article in Aging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.8field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Cytochrome bAging cell · 2024
    Article
  5. Dietary restriction in senolysis and prevention and treatment of disease.Critical reviews in food science and nutrition · 2024
    Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. The impact of diet upon mitochondrial physiology (Review).International journal of molecular medicine · 2022
    Review
  11. Article
  12. Article
  13. Mitochondrial Dynamics and Mitophagy in Skeletal Muscle Health and Aging.International journal of molecular sciences · 2021
    Review
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 2 institutions in 2 countries.

Zeyu ZhouDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
Kevork HagopianDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
José A López-DomínguezDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
Kyoungmi KimDepartment of Public Health Sciences, School of Medicine, University of California, Davis, CA 95617, USA.
Mittal JasoliyaDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
Megan N RobertsDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
Gino A CortopassiDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
Megan R ShowalterNIH-West Coast Metabolomics Center, University of California, Davis, CA 95616, USA.
Bryan S RobertsNIH-West Coast Metabolomics Center, University of California, Davis, CA 95616, USA.
José A González-ReyesDepartment of Cell Biology, Physiology and Immunology, Campus de Excelencia Internacional Agroalimentario, ceiA3, University of Córdoba, Córdoba, Spain.
Keith BaarDepartment of Neurobiology, Physiology, and Behavior, University of California, Davis, CA 95616, USA.
Jennifer RutkowskyDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
Jon J RamseyDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
University of California, Davis · USUniversity of Córdoba · ES

Funding

Reversing the epigenetic code of aging through ketogenic dietsP01AG062817 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI CORTOPASSI, GINO A · 2019 to 2023
$11.4M
NIA NIH HHS P01 AG062817
6 · The paper itself

Abstract

Declines in mitochondrial mass are thought to be a hallmark of mammalian aging, and a ketogenic diet (KD) may prevent the age-related decreases in mitochondrial content. The objective of this study was to investigate the impact of a KD on markers of mitochondrial mass. Mice were fed an isocaloric control diet (CD) or KD from 12 months of age. Tissues were collected after 1 month and 14 months of intervention, and a panel of commonly used markers of mitochondrial mass (mitochondrial enzyme activities and levels, mitochondrial to nuclear DNA ratio, and cardiolipin content) were measured. Our results showed that a KD stimulated activities of marker mitochondrial enzymes including citrate synthase, Complex I, and Complex IV in hindlimb muscle in aged mice. KD also increased the activity of citrate synthase and prevented an age-related decrease in Complex IV activity in aged brain. No other markers were increased in these tissues. Furthermore, the impacts of a KD on liver and kidney were mixed with no pattern indicative of a change in mitochondrial mass. In conclusion, results of the present study suggest that a KD induces tissue-specific changes in mitochondrial enzyme activities, or structure, rather than global changes in mitochondrial mass across tissues.

Indexed as

Diet, KetogenicAnimalsElectron Transport Complex IElectron Transport Complex IVKidneyLiverMaleMiceMitochondriaElectron Transport Complex IElectron Transport Complex IVbraindietkidneyliverskeletal muscle

Identifiers

PMID33735837
PMCPMC8034930
OpenAlexW3139304068

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.