Evidence map›Paper›PMID 26462620›Full record

ArticleBMC medical genomics2015

Genome-wide DNA methylome reveals the dysfunction of intronic microRNAs in major psychosis.

Hongying Zhao, Jinyuan Xu, Lin Pang, Yunpeng Zhang, Huihui Fan, Ling Liu, Tingting Liu, Fulong Yu, Guanxiong Zhang, Yujia Lan and 3 more

Abstract read
In one paragraph

Article in BMC medical genomics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Differentially methylated regions in bipolar disorder and suicide.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2019
    Article
  13. 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

13 authors.

Hongying ZhaoCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. zhy_sara@126.com.
Jinyuan XuCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. xujinyuan90@gmail.com.
Lin PangCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. panglinpl@163.com.
Yunpeng ZhangCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. zhangyunpeng_biocc@yahoo.cn.
Huihui FanCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. fanhuihui@hrbmu.edu.cn.
Ling LiuCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. bioliul1012@126.com.
Tingting LiuCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. ltt.2007@163.com.
Fulong YuCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. yufulong421@gmail.com.
Guanxiong ZhangCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. sda910722@gmail.com.
Yujia LanCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. lanyousi_001@163.com.
Jing BaiCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. bai_jingbelieve@126.com.
Xia LiCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. lixia@hrbmu.edu.cn.
Yun XiaoCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China. xiaoyun@ems.hrbmu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDNA methylation is thought to be extensively involved in the pathogenesis of many diseases, including major psychosis. However, most studies focus on DNA methylation alteration at promoters of protein-coding genes, despite the poor correlation between DNA methylation and gene expression.

methodsWe analyzed differentially methylated regions and differentially expressed genes in patients with schizophrenia and bipolar disorder and normal subjects. Gene expression and DNA methylation were analyzed with RNA-seq and MeDIP-seq of post-mortem brain tissue (brain region BA9) cohort in five schizophrenia, seven bipolar disorder cases and six controls, respectively.

resultsHere, we performed a large-scale integrative analysis using MeDIP-seq, coupled with RNA-seq, on brain samples from major psychotic and normal subjects and observed obvious discrepancy between DNA methylation and gene expression. We found that differentially methylated regions (DMRs) were distributed across different types of genomic elements, especially introns. These intronic DMRs were significantly enriched for diverse regulatory elements, such as enhancers and binding sites of certain transcriptional factors (e.g., Pol3). Notably, we found that parts of intronic DMRs overlapped with some intragenic miRNAs, such as hsa-mir-7-3. These intronic DMR-related miRNAs were found to target many differentially expressed genes. Moreover, functional analysis demonstrated that differential target genes of intronic DMR-related miRNAs were sufficient to capture many important biological processes in major psychosis, such as neurogenesis, suggesting that miRNAs may function as important linkers mediating the relationships between DNA methylation alteration and gene expression changes.

conclusionsCollectively, our study indicated that DNA methylation alteration could induce expression changes indirectly by affecting miRNAs and the exploration of DMR-related miRNAs and their targets enhanced understanding of the molecular mechanisms underlying major psychosis.

Indexed as

DNA MethylationGenomicsBipolar DisorderBrainCase-Control StudiesEpigenesis, GeneticHumansIntronsSchizophrenia

Identifiers

PMID26462620
PMCPMC4604612

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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.