Evidence map›Paper›PMID 25052007›Full record

ArticleNeuromolecular medicine2014

Aberrant DNA methylation of blood in schizophrenia by adjusting for estimated cellular proportions.

Makoto Kinoshita, Shusuke Numata, Atsushi Tajima, Kazutaka Ohi, Ryota Hashimoto, Shinji Shimodera, Issei Imoto, Masatoshi Takeda, Tetsuro Ohmori

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Neuromolecular medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 5 pooled it
2.4field-weighted citation impact, top 11% 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, 5 syntheses or guidelines pooled it, 44 citations in OpenAlex.

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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

9 authors at 3 institutions in 1 country.

Makoto KinoshitaDepartment of Psychiatry, Course of Integrated Brain Sciences, Medical Informatics, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-8-15, Kuramoto-cho, Tokushima, 770-8503, Japan, knst5511mkt@sunny.ocn.ne.jp.
Shusuke Numata
Atsushi Tajima
Kazutaka Ohi
Ryota Hashimoto
Shinji Shimodera
Issei Imoto
Masatoshi Takeda
Tetsuro Ohmori
Tokushima University · JPThe University of Osaka · JPKochi Medical School Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

DNA methylation, which is the transference of a methyl group to the 5'-carbon position of the cytosine in a CpG dinucleotide, is one of the major mechanisms of epigenetic modifications. A number of studies have demonstrated altered DNA methylation of peripheral blood cells in schizophrenia (SCZ) in previous studies. However, most of these studies have been limited to the analysis of the CpG sites in CpG islands in gene promoter regions, and cell-type proportions of peripheral leukocytes, which may be one of the potential confounding factors for DNA methylation, have not been adjusted in these studies. In this study, we performed a genome-wide DNA methylation profiling of the peripheral leukocytes from patients with SCZ and from non-psychiatric controls (N = 105; 63 SCZ and 42 control subjects) using a quantitative high-resolution DNA methylation microarray which covered across the whole gene region (485,764 CpG dinucleotides). In the DNA methylation data analysis, we first estimated the cell-type proportions of each sample with a published algorithm. Next, we performed a surrogate variable analysis to identify potential confounding factors in our microarray data. Finally, we conducted a multiple linear regression analysis in consideration of these factors, including estimated cell-type proportions, and identified aberrant DNA methylation in SCZ at 2,552 CpG loci at a 5% false discovery rate correction. Our results suggest that altered DNA methylation may be involved in the pathophysiology of SCZ, and cell heterogeneity adjustments may be necessary for DNA methylation analysis.

Indexed as

CpG IslandsDNA MethylationAdultConfounding Factors, EpidemiologicDinucleoside PhosphatesFemaleGenome-Wide Association StudyGranulocytesHumansLeukocyte CountLeukocytesLinear ModelsLymphocyte SubsetsMaleMiddle AgedMonocytesCpG dinucleotideDinucleoside PhosphatesReceptors, Androgen

Identifiers

PMID25052007
OpenAlexW1995961335

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.