Cited by 98Per- and polyfluoroalkyl substances researchZebrafish Biomedical Research ApplicationsToxic Organic Pollutants Impact

PFOS Induces Behavioral Alterations, Including Spontaneous Hyperactivity that Is Corrected by Dexamfetamine in Zebrafish Larvae

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Spulber, Stefan, Kilian, Pascal, Wan Ibrahim, Wan Norhamidah, Onishchenko, Natalia, Ulhaq, Mazhar, Norrgren, Leif, Negri, Sara, Di Tuccio, Marcello +1 more·2014·PLoS ONE

Abstract

Perfluorooctane sulfonate (PFOS) is a widely spread environmental contaminant. It accumulates in the brain and has potential neurotoxic effects. The exposure to PFOS has been associated with higher impulsivity and increased ADHD prevalence. We investigated the effects of developmental exposure to PFOS in zebrafish larvae, focusing on the modulation of activity by the dopaminergic system. We exposed zebrafish embryos to 0.1 or 1 mg/L PFOS (0.186 or 1.858 µM, respectively) and assessed swimming activity at 6 dpf. We analyzed the structure of spontaneous activity, the hyperactivity and the habituation during a brief dark period (visual motor response), and the vibrational startle response. The findings in zebrafish larvae were compared with historical data from 3 months old male mice exposed to 0.3 or 3 mg/kg/day PFOS throughout gestation. Finally, we investigated the effects of dexamfetamine on the alterations in spontaneous activity and startle response in zebrafish larvae. We found that zebrafish larvae exposed to 0.1 mg/L PFOS habituate faster than controls during a dark pulse, while the larvae exposed to 1 mg/L PFOS display a disorganized pattern of spontaneous activity and persistent hyperactivity. Similarly, mice exposed to 0.3 mg/kg/day PFOS habituated faster than controls to a new environment, while mice exposed to 3 mg/kg/day PFOS displayed more intense and disorganized spontaneous activity. Dexamfetamine partly corrected the hyperactive phenotype in zebrafish larvae. In conclusion, developmental exposure to PFOS in zebrafish induces spontaneous hyperactivity mediated by a dopaminergic deficit, which can be partially reversed by dexamfetamine in zebrafish larvae.

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  • Multiple studies reported that exposure to PFAS induced bouts of hyperactivity but decreased overall locomotion and distance traveled.

    “Notably, multiple studies reported that exposure to PFAS induced bouts of hyperactivity, but decreased overall locomotion and distance traveled (Spulber et al., 2014; Jantzen et al., 2016).”

    From A Critical Review and Meta-Analysis of Impacts of Per- and Polyfluorinated Substances on the Brain and Behavior (2022) · cites this paper as Spulber et al., 2014

    In Results (‘Alterations in the pattern of spontaneous activity’; page unavailable), larvae exposed to 1 mg/L PFOS had less frequent but more intense bouts, with greater distance moved within each bout. The Results on visual motor response report lower total distance during a 10-minute dark pulse only at 0.1 mg/L, a dose that did not alter spontaneous bouts. Thus, this paper supports both observations, but not their combination as a single exposure pattern or a general decrease in overall locomotion. (LLM, conf=0.86)

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  1. [34]OECD (2013) Test No. 210: Fish, Early-life Stage Toxicity Test. OECD Guidelines for the Testing of Chemicals, Section 2. OECD Publishing. pp. 1–24. doi: 10.1787/9789264203709-en. · DOI

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Authors
Spulber, S., Kilian, P., Wan Ibrahim, W. N., Onishchenko, N., Ulhaq, M., Norrgren, L., Negri, S., Di Tuccio, M., & Ceccatelli, S.
Affiliations
  • Karolinska Institutet (SE)
  • Swedish University of Agricultural Sciences (SE)
  • Fondazione Salvatore Maugeri (IT)
Corresponding author
Spulber, Stefan
Venue
PLoS ONE
Published
2014-04-16
Volume
9
Issue
4
Pages
e94227
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2054016792
Cited by
98
References
71
Citations by year
2026: 5 · 2025: 10 · 2024: 5 · 2023: 10 · 2022: 16 · 2021: 6 · 2020: 8 · 2019: 13 · 2018: 4 · 2017: 4 · 2016: 7 · 2015: 7 · 2014: 3
FWCI
5.32
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia) (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • Greater South Information System
Funders
  • Svenska Forskningsrådet Formas
  • Svenska Sällskapet för Medicinsk Forskning
  • Karolinska Institutet
  • Vetenskapsrådet
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Zebrafish Biomedical Research Applications
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
Keywords
PFOS, early life exposure, d-amphetamine, dopaminergic system, zebrafish larvae, habituation, startle response, visual motor response, environmental pollutants, ADHD-like behavior
MeSH terms
Animals, Dextroamphetamine, Environmental Exposure, Fluorocarbons, Larva, Swimming, Zebrafish, Akathisia, Drug-Induced, Alkanesulfonic Acids

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