Evidence map›Paper›PMID 33333158›Full record

ArticleReproductive toxicology (Elmsford, N.Y.)2021

Exposure to human relevant mixtures of halogenated persistent organic pollutants (POPs) alters neurodevelopmental processes in human neural stem cells undergoing differentiation.

Nichlas Davidsen, Anna Jacobsen Lauvås, Oddvar Myhre, Erik Ropstad, Donatella Carpi, Emilio Mendoza-de Gyves, Hanne Friis Berntsen, Hubert Dirven, Ragnhild E Paulsen, Anna Bal-Price and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Reproductive toxicology (Elmsford, N.Y.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.4field-weighted citation impact, top 6% 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

15 citing papers in PubMed, 58 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

11 authors at 6 institutions in 3 countries.

Nichlas DavidsenDepartment of Environmental Health, Section for Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo, Norway.
Anna Jacobsen LauvåsDepartment of Environmental Health, Section for Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo, Norway.
Oddvar MyhreDepartment of Environmental Health, Section for Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo, Norway.
Erik RopstadDepartment of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway.
Donatella CarpiEuropean Commission, Joint Research Centre (JRC), Ispra, Italy.
Emilio Mendoza-de GyvesEuropean Commission, Joint Research Centre (JRC), Ispra, Italy.
Hanne Friis BerntsenDepartment of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway; National Institute of Occupational Health, Oslo, Norway.
Hubert DirvenDepartment of Environmental Health, Section for Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo, Norway.
Ragnhild E PaulsenSection for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Norway.
Anna Bal-PriceEuropean Commission, Joint Research Centre (JRC), Ispra, Italy.
Francesca PistollatoEuropean Commission, Joint Research Centre (JRC), Ispra, Italy. Electronic address: francesca.pistollato@ec.europa.eu.
Norwegian Institute of Public Health · NOJoint Research Centre · ITEuropean Commission · BENational Institute of Occupational Health · NONorwegian University of Life Sciences · NOUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Halogenated persistent organic pollutants (POPs) like perfluorinated alkylated substances (PFASs), brominated flame retardants (BFRs), organochlorine pesticides and polychlorinated biphenyls (PCBs) are known to cause cancer, immunotoxicity, neurotoxicity and interfere with reproduction and development. Concerns have been raised about the impact of POPs upon brain development and possibly neurodevelopmental disorders. The developing brain is a particularly vulnerable organ due to dynamic and complex neurodevelopmental processes occurring early in life. However, very few studies have reported on the effects of POP mixtures at human relevant exposures, and their impact on key neurodevelopmental processes using human in vitro test systems. Aiming to reduce this knowledge gap, we exposed mixed neuronal/glial cultures differentiated from neural stem cells (NSCs) derived from human induced pluripotent stem cells (hiPSCs) to reconstructed mixtures of 29 different POPs using concentrations comparable to Scandinavian human blood levels. Effects of the POP mixtures on neuronal proliferation, differentiation and synaptogenesis were evaluated using in vitro assays anchored to common key events identified in the existing developmental neurotoxicity (DNT) adverse outcome pathways (AOPs). The present study showed that mixtures of POPs (in particular brominated and chlorinated compounds) at human relevant concentrations increased proliferation of NSCs and decreased synapse number. Based on a mathematical modelling, synaptogenesis and neurite outgrowth seem to be the most sensitive DNT in vitro endpoints. Our results indicate that prenatal exposure to POPs may affect human brain development, potentially contributing to recently observed learning and memory deficits in children.

Indexed as

HalogenationBrainBrain-Derived Neurotrophic FactorCell DifferentiationFemaleGene ExpressionHumansModels, TheoreticalNeural Stem CellsNeuritesNeurodevelopmental DisordersPersistent Organic PollutantsPregnancyPrenatal Exposure Delayed EffectsReceptors, Aryl HydrocarbonSynapsesBDNF protein, humanBrain-Derived Neurotrophic FactorPersistent Organic PollutantsReceptors, Aryl HydrocarbonAryl hydrocarbon receptorDevelopmental neurotoxicityHuman neural stem cellsMathematical modellingNeurite outgrowthPersistent organic pollutantsSynaptogenesis

Identifiers

PMID33333158
PMCPMC7992035
OpenAlexW3111728695

What OpenQuestion holds

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LicenceCC BY
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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.