Evidence map›Paper›PMID 16950816›Full record

ArticleJournal of medical genetics2007

Depletion of mitochondrial DNA in leucocytes harbouring the 3243A->G mtDNA mutation.

Angela Pyle, Robert W Taylor, Steve E Durham, Marcus Deschauer, Andrew M Schaefer, David C Samuels, Patrick F Chinnery

Open access · hybridAbstract readLetter
In one paragraph

Article in Journal of medical genetics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

33 citing papers in PubMed, 69 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Precision mitochondrial medicine.Cambridge prisms. Precision medicine · 2023
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Evolving mtDNA populations within cells.Biochemical Society transactions · 2019
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Mitochondrial DNA Heteroplasmy Associations With Neurosensory and Mobility Function in Elderly Adults.The journals of gerontology. Series A, Biological sciences and medical sciences · 2015
    Article
  20. 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

7 authors at 4 institutions in 3 countries.

Angela Pyle
Robert W Taylor
Steve E Durham
Marcus Deschauer
Andrew M Schaefer
David C Samuels
Patrick F Chinnery
Wellcome Centre for Mitochondrial Research · GBNewcastle University · GBMartin Luther University Halle-Wittenberg · DEVirginia Tech · US

Funding

Wellcome Trust 074454
6 · The paper itself

Abstract

backgroundThe 3243A-->G MTTL1 mutation is the most common heteroplasmic mitochondrial DNA (mtDNA) mutation associated with disease. Previous studies have shown that the percentage of mutated mtDNA decreases in blood as patients get older, but the mechanisms behind this remain unclear. OBJECTIVES AND

methodTo understand the dynamics of the process and the underlying mechanisms, an accurate fluorescent assay was established for 3243A-->G heteroplasmy and the amount of mtDNA in blood with real-time polymerase chain reaction was determined. The amount of mutated and wild-type mtDNA was measured at two time points in 11 subjects.

resultsThe percentage of mutated mtDNA decreases exponentially during life, and peripheral blood leucocytes in patients harbouring 3243A-->G are profoundly depleted of mtDNA.

conclusionsA similar decrease in mtDNA has been seen in other mitochondrial disorders, and in 3243A-->G cell lines in culture, indicating that depletion of mtDNA may be a common secondary phenomenon in several mitochondrial diseases. Depletion of mtDNA is not always due to mutation of a nuclear gene involved in mtDNA maintenance.

Indexed as

Point MutationPolymerase Chain ReactionAdultAgedAgingDNA, MitochondrialFemaleFluorescenceGene DosageHumansLeukocytesMaleMiddle AgedMitochondrial EncephalomyopathiesMitochondria, MuscleDNA, Mitochondrial

Identifiers

PMID16950816
PMCPMC2597915
OpenAlexW2049216889

What OpenQuestion holds

Textmetadata
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.