Evidence map›Paper›PMID 34474067›Full record

ArticleFood and chemical toxicology : an international journal published for the British Industrial Biological Research Association2021

Systemic toxicity induced by topical application of heptafluorobutyric acid (PFBA) in a murine model.

Lisa M Weatherly, Hillary L Shane, Ewa Lukomska, Rachel Baur, Stacey E Anderson

Abstract read
In one paragraph

Article in Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. pEnvironmental science & technology · 2025
    Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Effects of PFAS on human liver transporters: implications for health outcomes.Toxicological sciences : an official journal of the Society of Toxicology · 2024
    Review
  13. Optimization of Cyanocobalamin (Vitamin BMolecules (Basel, Switzerland) · 2024
    Article
  14. Article
  15. Systemic and immunotoxicity induced by topical application of perfluorohexane sulfonic acid (PFHxS) in a murine model.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 2024
    Article
  16. Determination ofFrontiers in toxicology · 2024
    Article
  17. Article
  18. Article
  19. Systemic toxicity induced by topical application of perfluoroheptanoic acid (PFHpA), perfluorohexanoic acid (PFHxA), and perfluoropentanoic acid (PFPeA) in a murine model.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 2023
    Article
  20. Article
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

5 authors.

Lisa M WeatherlyAllergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, USA. Electronic address: nux6@cdc.gov.
Hillary L ShaneAllergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, USA.
Ewa LukomskaAllergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, USA.
Rachel BaurAllergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, USA.
Stacey E AndersonAllergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, USA.

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

Heptafluorobutyric acid (PFBA) is a synthetic chemical belonging to the per- and polyfluoroalkyl substances (PFAS) group that includes over 5000 chemicals incorporated into numerous products. PFBA is a short-chain PFAS (C4) labeled as a safer alternative to legacy PFAS which have been linked to numerous health effects. Despite the high potential for dermal exposure, occupationally and environmentally, dermal exposure studies are lacking. Using a murine model, this study analyzed serum chemistries, histology, immune phenotyping, and gene expression to evaluate the systemic toxicity of sub-chronic dermal PFBA 15-day (15% v/v or 375 mg/kg/dose) or 28-day (3.75-7.5% v/v or 93.8-187.5 mg/kg/dose) exposures. PFBA exposure produced significant increases in liver and kidney weights and altered serum chemistries (all exposure levels). Immune-cell phenotyping identified significant increases in draining lymph node B-cells (15%) and CD11b + cells (3.75-15%) and skin T-cells (3.75-15%) and neutrophils (7.5-15%). Histopathological and gene expression changes were observed in both the liver and skin after dermal PFBA exposure. The findings indicate PFBA induces liver toxicity and alterations of PPAR target genes, suggesting a role of a PPAR pathway. These results demonstrate that sustained dermal exposure to PFBA induces systemic effects and raise concerns of short-chain PFAS being promoted as safer alternatives.

Indexed as

Administration, TopicalAnimalsChemical and Drug Induced Liver InjuryEnvironmental PollutantsFemaleFluorocarbonsIndicators and ReagentsMiceEnvironmental PollutantsFluorocarbonsIndicators and Reagentsperfluorobutyric acidDermalHeptafluorobutyric acidLiver toxicityPFBAToxicity

Identifiers

PMID34474067
PMCPMC8693634

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.