Evidence map›Paper›PMID 18814864›Full record

ReviewBiological psychiatry2009

Epigenetic regulation in human brain-focus on histone lysine methylation.

Schahram Akbarian, Hsien-Sung Huang

Abstract readReview
In one paragraph

Review in Biological psychiatry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 1 pooled it
9.1field-weighted citation impact, top 1% 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

76 citing papers in PubMed, 1 synthesis or guideline pooled it, 213 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Histone Modifications in Neurological Disorders.Advances in experimental medicine and biology · 2022
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

16 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

2 authors at 2 institutions in 1 country.

Schahram AkbarianDepartment of Psychiatry, Brudnick Neuropsychiatric Research Institute, University of Massachusetts Medical School, Worcester, Massachusettsm USA. schahram.akbarian@umassmed.edu
Hsien-Sung Huang
Neuropsychiatric Research Institute · USUniversity of Massachusetts Chan Medical School · US

Funding

EPIGENETIC CHANGES IN FRONTAL LOBE OF SCHIZOPHRENICSR01MH071476 · NIMH · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI AKBARIAN, SCHAHRAM · 2005 to 2009
$1.7M
Chromatin Alterations in Rett SyndromeR01HD048489 · NICHD · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI AKBARIAN, SCHAHRAM · 2005 to 2009
$1.4M
NICHD NIH HHS HD048489NICHD NIH HHS R01 HD048489NIMH NIH HHS MH071476NIMH NIH HHS R01 MH071476
6 · The paper itself

Abstract

Alterations in RNA levels are frequently reported in brain of subjects diagnosed with autism, schizophrenia, depression, and other psychiatric diseases, but it remains unclear whether the underlying molecular pathology involves changes in gene expression, as opposed to alterations in messenger RNA processing. Pre-clinical studies have revealed that stress, drugs, and a variety of other environmental factors lead to changes in RNA levels in brain via epigenetic mechanisms, including modification of histone proteins. A number of site-specific modifications of the nucleosome core histones-including the trimethylated forms of histone H3 lysines K4, K9, and K27-are of particular interest for postmortem research, because these marks differentiate between active and inactive chromatin and seem to remain relatively stable during tissue autolysis. Therefore, histone methylation profiling at promoter regions could provide important clues about mechanisms of gene expression in human brain during development and in disease. Intriguingly, mutations within the genes encoding the H3K9-specific methyltransferase, EHMT1, and the H3K4-specific histone demethylase, JARID1C/SMCX, have been linked to mental retardation and autism, respectively. In addition, the H3K4-specific methyltransferase, MLL1, is essential for hippocampal synaptic plasticity and might be involved in cortical dysfunction of some cases of schizophrenia. Together, these findings emphasize the potential significance of histone lysine methylation for orderly brain development and also as a molecular toolbox to study chromatin function in postmortem tissue.

Indexed as

Brain ChemistryGene Expression RegulationHistonesHumansLysineMental DisordersMethylationRNAHistonesLysineRNA

Identifiers

PMID18814864
PMCPMC2637452
OpenAlexW1998442739

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.