Evidence map›Paper›PMID 33288794›Full record

ArticleScientific reports2020

Maternal immune activation induces sustained changes in fetal microglia motility.

Kana Ozaki, Daisuke Kato, Ako Ikegami, Akari Hashimoto, Shouta Sugio, Zhongtian Guo, Midori Shibushita, Tsuyako Tatematsu, Koichiro Haruwaka, Andrew J Moorhouse and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 3 pooled it
6.4field-weighted citation impact, top 3% 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

73 citing papers in PubMed, 3 syntheses or guidelines pooled it, 119 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Mild SARS-CoV-2 maternal infection in mice induces transient offspring neurodevelopmental aberrance.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  8. Review
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  15. Microglia as critical mediators linking perinatal immune stress to mental health trajectories.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
  16. Article
  17. Article
  18. Microglial plasticity across development mediates infantile amnesia.bioRxiv : the preprint server for biology · 2025
    Article
  19. Article
  20. Article

13 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

12 authors at 3 institutions in 2 countries.

Kana OzakiDivision of System Neuroscience, Kobe University Graduate School of Medicine, Kobe, Japan.
Daisuke KatoDivision of System Neuroscience, Kobe University Graduate School of Medicine, Kobe, Japan.
Ako IkegamiDepartment of Anatomy and Molecular Cell Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Akari HashimotoDivision of System Neuroscience, Kobe University Graduate School of Medicine, Kobe, Japan.
Shouta SugioDepartment of Anatomy and Molecular Cell Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Zhongtian GuoDivision of System Neuroscience, Kobe University Graduate School of Medicine, Kobe, Japan.
Midori ShibushitaDepartment of Anatomy and Molecular Cell Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Tsuyako TatematsuDepartment of Anatomy and Molecular Cell Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Koichiro HaruwakaDivision of System Neuroscience, Kobe University Graduate School of Medicine, Kobe, Japan.
Andrew J MoorhouseSchool of Medical Sciences, The University of New South Wales, Sydney, Australia.
Hideto YamadaDepartment of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan.
Hiroaki WakeDivision of System Neuroscience, Kobe University Graduate School of Medicine, Kobe, Japan. hirowake@med.nagoya-u.ac.jp.
Nagoya University · JPKobe University · JPUNSW Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Maternal infection or inflammation causes abnormalities in brain development associated with subsequent cognitive impairment and in an increased susceptibility to schizophrenia and autism spectrum disorders. Maternal immune activation (MIA) and increases in serum cytokine levels mediates this association via effects on the fetal brain, and microglia can respond to maternal immune status, but consensus on how microglia may respond is lacking and no-one has yet examined if microglial process motility is impaired. In this study we investigated how MIA induced at two different gestational ages affected microglial properties at different developmental stages. Immune activation in mid-pregnancy increased IL-6 expression in embryonic microglia, but failed to cause any marked changes in morphology either at E18 or postnatally. In contrast MIA, particularly when induced earlier (at E12), caused sustained alterations in the patterns of microglial process motility and behavioral deficits. Our research has identified an important microglial property that is altered by MIA and which may contribute to the underlying pathophysiological mechanisms linking maternal immune status to subsequent risks for cognitive disease.

Indexed as

AnimalsBrainCell MovementDisease Models, AnimalFemaleFetusInflammationInterleukin-6MaleMiceMice, Inbred C57BLMicrogliaPoly I-CPregnancyPrenatal Exposure Delayed EffectsInterleukin-6Poly I-C

Identifiers

PMID33288794
PMCPMC7721716
OpenAlexW3112457725

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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.