Evidence map›Paper›PMID 28797086›Full record

ArticlePloS one2017

Epigenetic differences between monozygotic twins discordant for amyotrophic lateral sclerosis (ALS) provide clues to disease pathogenesis.

Paul E Young, Stephen Kum Jew, Michael E Buckland, Roger Pamphlett, Catherine M Suter

Open access · goldAbstract readComparative StudyTwin Study
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. A multi-omics study on monozygotic twins discordant for amyotrophic lateral sclerosis and literature review underline a potential role for innate immunity and epigenetic dysregulation in disease mechanisms.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Review
  3. Epigenetics in Neurodegenerative Diseases.Sub-cellular biochemistry · 2025
    Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Motoneuron Diseases.Advances in neurobiology · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Circulating RNAs as Potential Biomarkers in Amyotrophic Lateral Sclerosis.International journal of molecular sciences · 2020
    Review
  15. Review
  16. Review
  17. Article
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  19. Article
  20. Review
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

5 authors at 2 institutions in 1 country.

Paul E YoungDivision of Molecular Structural and Computational Biology, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia.
Stephen Kum JewDiscipline of Pathology, Sydney Medical School, Brain and Mind Research Institute, The University of Sydney, Camperdown, NSW, Australia.
Michael E BucklandDiscipline of Pathology, Sydney Medical School, Brain and Mind Research Institute, The University of Sydney, Camperdown, NSW, Australia.
Roger PamphlettDiscipline of Pathology, Sydney Medical School, Brain and Mind Research Institute, The University of Sydney, Camperdown, NSW, Australia.
Catherine M SuterDivision of Molecular Structural and Computational Biology, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia.ORCID http://orcid.org/0000-0002-0694-6396
The University of Sydney · AUVictor Chang Cardiac Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Amyotrophic lateral sclerosis (ALS) is a devastating late-onset neurodegenerative disorder in which only a small proportion of patients carry an identifiable causative genetic lesion. Despite high heritability estimates, a genetic etiology for most sporadic ALS remains elusive. Here we report the epigenetic profiling of five monozygotic twin pairs discordant for ALS, four with classic ALS and one with the progressive muscular atrophy ALS variant, in whom previous whole genome sequencing failed to uncover a genetic basis for their disease discordance. By studying cytosine methylation patterns in peripheral blood DNA we identified thousands of large between-twin differences at individual CpGs. While the specific sites of differences were mostly idiosyncratic to a twin pair, a proportion involving GABA signalling were common to all ALS individuals. For both idiosyncratic and common sites the differences occurred within genes and pathways related to neurobiological functions or dysfunctions, some of particular relevance to ALS such as glutamate metabolism and the Golgi apparatus. All four classic ALS patients were epigenetically older than their unaffected co-twins, suggesting accelerated aging in multiple tissues in this disease. In conclusion, widespread changes in methylation patterns were found in ALS-affected co-twins, consistent with an epigenetic contribution to disease. These DNA methylation findings could be used to develop blood-based ALS biomarkers, gain insights into disease pathogenesis, and provide a reference for future large-scale ALS epigenetic studies.

Indexed as

Epigenesis, GeneticAgedAmyotrophic Lateral SclerosisCpG IslandsDiseases in TwinsDNA MethylationFemaleHumansMaleMiddle AgedSignal TransductionTwins, Monozygotic

Identifiers

PMID28797086
PMCPMC5552194
OpenAlexW2744573777

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.