Evidence map›Paper›PMID 19132145›Full record

ArticleAutism research : official journal of the International Society for Autism Research2008

MECP2 promoter methylation and X chromosome inactivation in autism.

Raman P Nagarajan, Katherine A Patzel, Michelle Martin, Dag H Yasui, Susan E Swanberg, Irva Hertz-Picciotto, Robin L Hansen, Judy Van de Water, Isaac N Pessah, Ruby Jiang and 2 more

Abstract read
In one paragraph

Article in Autism research : official journal of the International Society for Autism Research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

59 citing papers in PubMed, 109 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. X Chromosome Inactivation Timing is Not eFrontiers in genetics · 2022
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. DNA Methylation Contributes to the Differential Expression Levels ofInternational journal of molecular sciences · 2019
    Article
  15. Review
  16. Genetic Causes and Modifiers of Autism Spectrum Disorder.Frontiers in cellular neuroscience · 2019
    Review
  17. Review
  18. NS-Brain and behavior · 2017
    Article
  19. Review
  20. CXBrain, behavior, and immunity · 2017
    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

12 authors at 3 institutions in 2 countries.

Raman P NagarajanMedical Microbiology and Immunology and Rowe Program in Human Genetics, University of California, Davis, CA 95616, USA.
Katherine A Patzel
Michelle Martin
Dag H Yasui
Susan E Swanberg
Irva Hertz-Picciotto
Robin L Hansen
Judy Van de Water
Isaac N Pessah
Ruby Jiang
Wendy P Robinson
Janine M LaSalle
University of California, Davis · USNeuroDevelopment Center · USUniversity of British Columbia · CA

Funding

A Natonal Resource for Postmortem Brain ResearchR24MH068855 · NIMH · MC LEAN HOSPITAL (BELMONT, MA) · PI BENES, FRANCINE M. · 2003 to 2012
$14.8M
THE CHARGE STUDY: CHILDHOOD AUTISM RISKS FROM GENETICS AND THE ENVIRONMENT - ADMINISTRATIVE SUPPLEMENTR01ES015359 · NIEHS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI HERTZ-PICCIOTTO, IRVA · 2007 to 2019
$13.8M
The Role of MeCP2 in Rett SyndromeR01HD041462 · NICHD · UNIVERSITY OF CALIFORNIA DAVIS · PI LASALLE, JANINE M · 2002 to 2011
$2.8M
Epigenetic Etiologies of Autism-Spectrum DisordersR01HD048799 · NICHD · UNIVERSITY OF CALIFORNIA DAVIS · PI LASALLE, JANINE M · 2005 to 2009
$1.8M
Epigenetic Interaction of MECP2 and Organic Pollutants in NeurodevelopmentR01ES015171 · NIEHS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI LASALLE, JANINE M · 2006 to 2009
$1.8M
NICHD NIH HHS 1R01HD048799NICHD NIH HHS R01 HD041462NICHD NIH HHS R01 HD048799NIEHS NIH HHS R01 ES015171NIEHS NIH HHS R01ES015171NIEHS NIH HHS R01 ES015359NIMH NIH HHS R24 MH068855NIMH NIH HHS R24MH-068855
6 · The paper itself

Abstract

Epigenetic mechanisms have been proposed to play a role in the etiology of autism. This hypothesis is supported by the discovery of increased MECP2 promoter methylation associated with decreased MeCP2 protein expression in autism male brain. To further understand the influence of female X chromosome inactivation (XCI) and neighboring methylation patterns on aberrant MECP2 promoter methylation in autism, multiple methylation analyses were peformed on brain and blood samples from individuals with autism. Bisulfite sequencing analyses of a region 0.6 kb upstream of MECP2 in brain DNA samples revealed an abrupt transition from a highly methylated region in both sexes to a region unmethylated in males and subject to XCI in females. Chromatin immunoprecipitation analysis demonstrated that the CCTC-binding factor (CTCF) bound to this transition region in neuronal cells, consistent with a chromatin boundary at the methylation transition. Male autism brain DNA samples displayed a slight increase in methylation in this transition region, suggesting a possible aberrant spreading of methylation into the MECP2 promoter in autism males across this boundary element. In addition, autistic female brain DNA samples showed evidence for aberrant MECP2 promoter methylation as an increase in the number of bisulfite sequenced clones with undefined XCI status for MECP2 but not androgen receptor (AR). To further investigate the specificity of MECP2 methylation alterations in autism, blood DNA samples from females and mothers of males with autism were also examined for XCI skewing at AR, but no significant increase in XCI skewing was observed compared to controls. These results suggest that the aberrant MECP2 methylation in autism brain DNA samples is due to locus-specific rather than global X chromosome methylation changes.

Indexed as

MethylationAutistic DisorderBrainChild, PreschoolChromosomes, Human, XDNA PrimersHumansMethyl-CpG-Binding Protein 2Polymorphism, GeneticX Chromosome InactivationDNA PrimersMECP2 protein, humanMethyl-CpG-Binding Protein 2epigeneticsMECP2post-mortem brainX chromosome inactivation

Identifiers

PMID19132145
PMCPMC2614877
OpenAlexW2089815674

What OpenQuestion holds

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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.