Evidence map›Paper›PMID 29484271›Full record

ReviewBrain and behavior2018

Maternal hormonal milieu influence on fetal brain development.

Alexandra Miranda, Nuno Sousa

Open access · goldAbstract readReview
In one paragraph

Review in Brain and behavior, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 2 pooled it
29.0field-weighted citation impact, top 1% 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

89 citing papers in PubMed, 2 syntheses or guidelines pooled it, 184 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. On the importance of including both sexes in animal studies - insights from home-cage monitoring.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
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  13. GLP-1-Mediated Pregnancy and Neonatal Complications in Mice.Journal of developmental biology · 2025
    Article
  14. Review
  15. Article
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29 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

2 authors at 2 institutions in 1 country.

Alexandra MirandaLife and Health Sciences Research Institute (ICVS) School of Medicine University of Minho Braga Portugal.ORCID 0000-0001-8816-8948
Nuno SousaLife and Health Sciences Research Institute (ICVS) School of Medicine University of Minho Braga Portugal.
Clinical Academic Center of Braga · PTHospital Braga · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An adverse maternal hormonal environment during pregnancy can be associated with abnormal brain growth. Subtle changes in fetal brain development have been observed even for maternal hormone levels within the currently accepted physiologic ranges. In this review, we provide an update of the research data on maternal hormonal impact on fetal neurodevelopment, giving particular emphasis to thyroid hormones and glucocorticoids. Thyroid hormones are required for normal brain development. Despite serum TSH appearing to be the most accurate indicator of thyroid function in pregnancy, maternal serum free T4 levels in the first trimester of pregnancy are the major determinant of postnatal psychomotor development. Even a transient period of maternal hypothyroxinemia at the beginning of neurogenesis can confer a higher risk of expressive language and nonverbal cognitive delays in offspring. Nevertheless, most recent clinical guidelines advocate for targeted high-risk case finding during first trimester of pregnancy despite universal thyroid function screening. Corticosteroids are determinant in suppressing cell proliferation and stimulating terminal differentiation, a fundamental switch for the maturation of fetal organs. Not surprisingly, intrauterine exposure to stress or high levels of glucocorticoids, endogenous or synthetic, has a molecular and structural impact on brain development and appears to impair cognition and increase anxiety and reactivity to stress. Limbic regions, such as hippocampus and amygdala, are particularly sensitive. Repeated doses of prenatal corticosteroids seem to have short-term benefits of less respiratory distress and fewer serious health problems in offspring. Nevertheless, neurodevelopmental growth in later childhood and adulthood needs further clarification. Future studies should address the relevance of monitoring the level of thyroid hormones and corticosteroids during pregnancy in the risk stratification for impaired postnatal neurodevelopment.

Indexed as

GlucocorticoidsNeurodevelopmental DisordersPregnancy ComplicationsThyroid HormonesBrainDiagnostic Techniques, EndocrineFemaleFetal DevelopmentHumansInfantMalePregnancyPrenatal Exposure Delayed EffectsGlucocorticoidsThyroid Hormonesfetal neurodevelopmentfetal programmingglucocorticoidsmaternal hormonesmelatoninoxytocinsex steroidsthyroid hormones

Identifiers

PMID29484271
PMCPMC5822586
OpenAlexW2789662155

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.