Evidence map›Paper›PMID 30772953›Full record

ArticleNeuropsychopharmacology reports2019

Transcriptomic evidence for immaturity induced by antidepressant fluoxetine in the hippocampus and prefrontal cortex.

Hideo Hagihara, Koji Ohira, Tsuyoshi Miyakawa

Open access · goldAbstract read
In one paragraph

Article in Neuropsychopharmacology reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 17% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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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

3 authors at 2 institutions in 1 country.

Hideo HagiharaDivision of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan.ORCID 0000-0001-9602-9518
Koji OhiraDivision of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan.ORCID 0000-0003-0170-8652
Tsuyoshi MiyakawaDivision of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan.ORCID 0000-0003-0137-8200
Fujita Health University · JPMukogawa Women's University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe molecular and cellular mechanisms underlying the antidepressant effects of fluoxetine in the brain are not fully understood. Emerging evidence has led to the hypothesis that chronic fluoxetine treatment induces dematuration of certain types of mature neurons in rodents. These studies have focused on the properties of typical molecular and/or electrophysiological markers for neuronal maturation. Nevertheless, it remains unknown whether dematuration-related phenomena are present at the genome-wide gene expression level.

methodsBased on the aforementioned hypothesis, we directly compared transcriptome data between fluoxetine-treated adult mice and those of naive infants in the hippocampus and medial prefrontal cortex (mPFC) to assess similarities and/or differences. We further investigated whether fluoxetine treatment caused dematuration in these brain regions in a hypothesis-free manner using a weighted gene co-expression network analysis (WGCNA).

resultsGene expression patterns in fluoxetine-treated mice resembled those in infants in the mPFC and, to a large extent, in the hippocampus. The gene expression patterns of fluoxetine-treated adult mice were more similar to those of approximately 2-week-old infants than those of older mice. WGCNA confirmed that fluoxetine treatment was associated with maturation abnormalities, particularly in the hippocampus, and highlighted respective co-expression modules for maturity and immaturity marker genes in the hippocampus in response to fluoxetine treatment.

conclusionsOur results strongly support the hypothesis that chronic fluoxetine treatment induces dematuration in the adult mouse brain from a transcriptomic standpoint. Detection of discrete transcriptomic regulatory networks related to fluoxetine treatment may help to further elucidate the mechanisms of antidepressant action.

Indexed as

TranscriptomeAnimalsAntidepressive AgentsFluoxetineHippocampusMaleMiceMice, Inbred C57BLNeurogenesisPrefrontal CortexAntidepressive AgentsFluoxetine

Identifiers

PMID30772953
PMCPMC7292305
OpenAlexW2914138006

What OpenQuestion holds

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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.