Evidence map›Paper›PMID 34612579›Full record

ArticleAging cell2021

Mitochondrial DNA copy number and heteroplasmy load correlate with skeletal muscle oxidative capacity by P31 MR spectroscopy.

Qu Tian, Ann Zenobia Moore, Richard Oppong, Jun Ding, Marta Zampino, Kenneth W Fishbein, Richard G Spencer, Luigi Ferrucci

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 25% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Human studies of mitochondrial biology demonstrate an overall lack of binary sex differences: A multivariate meta-analysis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022
    Pooled it
  2. Article
  3. Molecular Framework of the Onset and Progression of Skeletal Muscle Aging.International journal of molecular sciences · 2025
    Review
  4. Review
  5. Article
  6. Article
  7. Review
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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

8 authors at 1 institution in 1 country.

Qu TianTranslational Gerontology Branch, National Institute on Aging, Baltimore, Maryland, USA.ORCID 0000-0003-2706-1439
Ann Zenobia MooreTranslational Gerontology Branch, National Institute on Aging, Baltimore, Maryland, USA.
Richard OppongTranslational Gerontology Branch, National Institute on Aging, Baltimore, Maryland, USA.
Jun DingTranslational Gerontology Branch, National Institute on Aging, Baltimore, Maryland, USA.
Marta ZampinoTranslational Gerontology Branch, National Institute on Aging, Baltimore, Maryland, USA.ORCID 0000-0002-9381-3291
Kenneth W FishbeinLaboratory of Clinical Investigation, National Institute on Aging, Baltimore, Maryland, USA.
Richard G SpencerLaboratory of Clinical Investigation, National Institute on Aging, Baltimore, Maryland, USA.
Luigi FerrucciTranslational Gerontology Branch, National Institute on Aging, Baltimore, Maryland, USA.
National Institute on Aging · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association between blood-based estimates of mitochondrial DNA parameters, mitochondrial DNA copy number (mtDNA-CN) and heteroplasmy load, with skeletal muscle bioenergetic capacity was evaluated in 230 participants of the Baltimore Longitudinal Study of Aging (mean age:74.7 years, 53% women). Participants in the study sample had concurrent data on muscle oxidative capacity (τ

Indexed as

DNA Copy Number VariationsHeteroplasmyAgedAged, 80 and overAgingBaltimoreDNA, MitochondrialFemaleHumansLongitudinal StudiesMagnetic Resonance SpectroscopyMaleMiddle AgedMitochondriaMuscle, SkeletalOxidative StressDNA, MitochondrialPhosphorusagingmitochondrial DNAskeletal muscle

Identifiers

PMID34612579
PMCPMC8590093
OpenAlexW3204847821

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.