Evidence map›Paper›PMID 22688405›Full record

ArticleActa neuropathologica2012

Clonally expanded mitochondrial DNA deletions within the choroid plexus in multiple sclerosis.

Graham R Campbell, Yevgenya Kraytsberg, Kim J Krishnan, Nobuhiko Ohno, Iryna Ziabreva, Amy Reeve, Bruce D Trapp, Jia Newcombe, Richard Reynolds, Hans Lassmann and 3 more

Open access · greenAbstract read
In one paragraph

Article in Acta neuropathologica, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

26 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. The Fate of Oxidative Strand Breaks in Mitochondrial DNA.Antioxidants (Basel, Switzerland) · 2023
    Article
  8. Article
  9. Review
  10. Translational value of choroid plexus imaging for tracking neuroinflammation in mice and humans.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Neuron-Oligodendrocyte Interactions in the Structure and Integrity of Axons.Frontiers in cell and developmental biology · 2021
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Neurodegeneration in Progressive Multiple Sclerosis.Cold Spring Harbor perspectives in medicine · 2018
    Review
  17. Review
  18. Article
  19. Review
  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

13 authors at 8 institutions in 3 countries.

Graham R CampbellThe Mitochondrial Research Group, Institute for Ageing and Health, Newcastle University, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK.
Yevgenya Kraytsberg
Kim J Krishnan
Nobuhiko Ohno
Iryna Ziabreva
Amy Reeve
Bruce D Trapp
Jia Newcombe
Richard Reynolds
Hans Lassmann
Konstantin Khrapko
Doug M Turnbull
Don J Mahad
Wellcome Centre for Mitochondrial Research · GBBeth Israel Deaconess Medical Center · USCleveland Clinic · USNewcastle University · GBHammersmith Hospital · GBMedical University of Vienna · ATUniversity College London · GBUniversity of Edinburgh · GB

Funding

Somatic mtDNA mutations in brain Aging: a single-cell approachR01AG019787 · NIA · BETH ISRAEL DEACONESS MEDICAL CENTER · PI KHRAPKO, KONSTANTIN · 2001 to 2011
$2.8M
Biotechnology and Biological Sciences Research CouncilMedical Research Council G0400074Medical Research Council G0502157Medical Research Council G0700718Medical Research Council G0800674Medical Research Council G0900652Medical Research Council G1100540Medical Research Council MC_G0802536NIA NIH HHS R01 AG019787Parkinson's UK G-0909Wellcome Trust 096919
6 · The paper itself

Abstract

Mitochondrial DNA deletions (∆-mtDNA) have been implicated in the pathogenesis of Alzheimer's disease (AD), multiple sclerosis (MS) and Parkinson's disease (PD), as well as ageing. Clonal expansion of ∆-mtDNA is the process by which a mutant mtDNA molecule increases to high levels within a single cell containing both wild-type and mutant mtDNA. Unlike in AD and PD, the diffuse inflammatory process in MS involves the choroid plexus, and mitochondria are exposed to reactive oxygen and nitrogen species over a prolonged period. We determined the extent of respiratory enzyme deficiency and ∆-mtDNA at a single cell level within choroid plexus epithelial cells in MS as well as in AD, PD and controls. The respiratory enzyme-deficient (lacking complex IV and with intact complex II activity) cells were more prevalent within the choroid plexus in AD, MS and PD compared with controls. The main catalytic subunit of complex IV (subunit-I of cytochrome c oxidase) was lacking in significantly more respiratory enzyme-deficient cells in MS compared with AD, PD and controls. The single cell analysis showed a fourfold increase in the percentage of respiratory enzyme-deficient choroid plexus epithelial cells harbouring clonally expanded ∆-mtDNA in MS. Our findings establish clonal expansion of ∆-mtDNA as a feature relatively more prominent within the choroid plexus epithelium in MS than AD, PD or controls. We propose clonal expansion of ∆-mtDNA as a molecular link between inflammation and part of a delayed cellular energy failure in MS.

Indexed as

Sequence DeletionAlzheimer DiseaseBrainChoroid PlexusDNA, MitochondrialHumansMultiple SclerosisNeuronsDNA, Mitochondrial

Identifiers

PMID22688405
PMCPMC3674417
OpenAlexW2003105071

What OpenQuestion holds

Textmetadata
LicenceTDM
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.