Evidence map›Paper›PMID 24475125›Full record

ArticlePloS one2014

Expression of microRNAs and other small RNAs in prefrontal cortex in schizophrenia, bipolar disorder and depressed subjects.

Neil R Smalheiser, Giovanni Lugli, Hui Zhang, Hooriyah Rizavi, Edwin H Cook, Yogesh Dwivedi

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 111 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
111citing papers in PubMed, 5 pooled it
7.4field-weighted citation impact, top 2% 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

111 citing papers in PubMed, 5 syntheses or guidelines pooled it, 196 citations in OpenAlex.

  1. Pooled it
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  3. Genetics and epigenetics of self-injurious thoughts and behaviors: Systematic review of the suicide literature and methodological considerations.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2022
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51 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

6 authors at 1 institution in 1 country.

Neil R SmalheiserDepartment of Psychiatry and Psychiatric Institute, University of Illinois at Chicago, Chicago, Illinois, United States of America.
Giovanni LugliDepartment of Psychiatry and Psychiatric Institute, University of Illinois at Chicago, Chicago, Illinois, United States of America.
Hui ZhangDepartment of Psychiatry and Psychiatric Institute, University of Illinois at Chicago, Chicago, Illinois, United States of America.
Hooriyah RizaviDepartment of Psychiatry and Psychiatric Institute, University of Illinois at Chicago, Chicago, Illinois, United States of America.
Edwin H CookDepartment of Psychiatry and Psychiatric Institute, University of Illinois at Chicago, Chicago, Illinois, United States of America.
Yogesh DwivediDepartment of Psychiatry and Psychiatric Institute, University of Illinois at Chicago, Chicago, Illinois, United States of America.
University of Illinois Chicago · US

Funding

TRANS STUDIES OF COGNITIVE,AFFECTIVE/NEUROCHEMICAL PROCESSES UNDERLYING INSISTENCP50HD055751 · NICHD · UNIVERSITY OF ILLINOIS AT CHICAGO · PI COOK, EDWIN H · 2007 to 2011
$9.5M
MicroRNA Mapping in Major DepressionR01MH100616 · NIMH · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI DWIVEDI, YOGESH · 2014 to 2019
$1.8M
Perturbed cell signaling network and suicide neurobiologyR01MH101890 · NIMH · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI DWIVEDI, YOGESH · 2013 to 2017
$1.6M
Epigenetic Studies in Suicide BrainR21MH091509 · NIMH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DWIVEDI, YOGESH · 2010 to 2011
$430k
NICHD NIH HHS P50 HD055751NIMH NIH HHS R01 MH100616NIMH NIH HHS R01MH100616NIMH NIH HHS R01 MH101890NIMH NIH HHS R21 MH091509NIMH NIH HHS R21MH091509PHS HHS R01082802
6 · The paper itself

Abstract

Because of the role played by miRNAs in post-transcriptional regulation of an array of genes, their impact in neuropsychiatric disease pathophysiology has increasingly been evident. In the present study, we assessed microRNA expression in prefrontal cortex (Brodmann area 10) of a well-characterized cohort of major depressed, bipolar, and schizophrenia subjects (obtained from Stanley Neuropathology Consortium; n = 15 in each group), using high throughput RT-PCR plates. Discrete miRNA alterations were observed in all disorders, as well as in suicide subjects (pooled across diagnostic categories) compared to all non-suicide subjects. The changes in the schizophrenia group were partially similar to those in the bipolar group, but distinct from changes in depression and suicide. Intriguingly, those miRNAs which were down-regulated in the schizophrenia group tended to be synaptically enriched, whereas up-regulated miRNAs tended not to be. To follow this up, we purified synaptosomes from pooled samples of the schizophrenia vs. control groups and subjected them to Illumina deep sequencing. There was a significant loss of small RNA expression in schizophrenia synaptosomes only for certain sequence lengths within the miRNA range. Moreover, 73 miRNAs were significantly down-regulated whereas only one was up-regulated. Strikingly, across all expressed miRNAs in synaptosomes, there was a significant inverse correlation between the fold-change of a given miRNA seen in schizophrenia and its synaptic enrichment ratio observed in controls. Thus, synaptic miRNAs tended to be down-regulated in schizophrenia, and the more highly synaptically enriched miRNAs tended to show greater down-regulation. These findings point to some deficit in miRNA biogenesis, transport, processing or turnover in schizophrenia that is selective for the synaptic compartment. A novel class of ncRNA-derived small RNAs, shown to be strongly induced during an early phase of learning in mouse, is also expressed in man, and at least one representative (SNORD85) was strongly down-regulated in schizophrenia synaptosomes.

Indexed as

Base SequenceBipolar DisorderCohort StudiesDepressionFemaleGene Expression RegulationHigh-Throughput Nucleotide SequencingHumansMaleMicroRNAsMolecular Sequence DataPrefrontal CortexReverse Transcriptase Polymerase Chain ReactionSchizophreniaSequence Analysis, DNAStatistics, NonparametricMicroRNAs

Identifiers

PMID24475125
PMCPMC3903529
OpenAlexW2092923416

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.