Evidence map›Paper›PMID 21296868›Full record

ArticleHuman molecular genetics2011

Neutral mitochondrial heteroplasmy and the influence of aging.

Neal Sondheimer, Catherine E Glatz, Jack E Tirone, Matthew A Deardorff, Abba M Krieger, Hakon Hakonarson

Abstract read
In one paragraph

Article in Human molecular genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
–field-weighted citation impact
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

61 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Mitochondrial haplogroups, but not heteroplasmy, are associated with midlife cognitive function.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
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  15. Article
  16. High-frequency and functional mitochondrial DNA mutations at the single-cell level.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  17. Article
  18. Review
  19. Mitochondrial Contributions to Hematopoietic Stem Cell Aging.International journal of molecular sciences · 2021
    Review
  20. Review

1 more citing papers are in PubMed but not listed here.

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

6 authors.

Neal SondheimerDepartment of Pediatrics, The University of Pennsylvania, Philadelphia, PA, USA. sondheimer@email.chop.edu
Catherine E Glatz
Jack E Tirone
Matthew A Deardorff
Abba M Krieger
Hakon Hakonarson

Funding

Mitochondrial Transcription and Pediatric DiseaseK08HD058022 · NICHD · CHILDREN'S HOSP OF PHILADELPHIA · PI SONDHEIMER, NEAL J · 2009 to 2013
$670k
NICHD NIH HHS K08 HD058022NICHD NIH HHS K08HD058022
6 · The paper itself

Abstract

The development and maintenance of mitochondrial heteroplasmy has important consequences for both health and heredity. Previous studies using pathogenic mutations have shown considerable variability between maternally related individuals and studies of several D-loop polymorphisms have suggested a relationship between heteroplasmy and somatic aging. To broadly explore the variation of human heteroplasmy and to clarify the dynamics of somatic heteroplasmy over the course of lifespan, we analyzed mitochondrial sequence variation across a range of ages. We utilized array-generated single-nucleotide polymorphism data that were well correlated with independent measures of heteroplasmy. Significant levels of heteroplasmy were identified at 0.24% of sites evaluated. By examining mother-child pairs, we found that heteroplasmy was inherited (30%) but could occur de novo in offspring or, conversely, be present in mothers but eliminated in their children (70%). Cumulatively, mitochondrial heteroplasmy across the genome increased significantly with advanced age (r = 0.224, P =8 × 10(-30)). Surprisingly, changes in heteroplasmy were not uniform with some sites demonstrating a loss of variation (increased homoplasmy) with aging. These data suggest that both mutation and selective pressure affect blood mitochondrial DNA sequence over the course of the human lifespan and reveal the unexpectedly dynamic nature of human heteroplasmy.

Indexed as

Genome, MitochondrialAdolescentAdultAgingAllelesChildChild, PreschoolDNA, MitochondrialFemaleGenotypeHeredityHumansInfantMaleMiddle AgedMitochondriaDNA, Mitochondrial

Identifiers

PMID21296868
PMCPMC3063991

What OpenQuestion holds

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Registered trials

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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.