ArticleToxicological sciences : an official journal of the Society of Toxicology2025
Distribution of perfluorooctanoic acid in exposed female postpubertal pigs in thermal neutral or heat-stressed conditions.
Article in Toxicological sciences : an official journal of the Society of Toxicology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Investigating ovarian effects of perfluorooctanoic acid in postpubertal pigs during thermal neutral and heat stress conditions.Journal of animal science · 2026Article
- Heat and chemical stressors: Independent and interactive impacts on the pig ovary.The Journal of reproduction and development · 2026Review
- Effects of perfluorooctanoic acid exposure and heat stress on performance and liver health biomarkers in post-pubertal gilts.Journal of animal science · 2025Article
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7 authors.
Funding
Abstract
Perfluorooctanoic acid (PFOA), a legacy perfluoroalkyl substance with immuno- and repro-toxicant effects, has poorly characterized bioaccumulation and distribution patterns in postpubertal female pigs. The potential for heat stress (HS) to influence PFOA partitioning, potentially through intestinal hyperpermeability and alterations in systemic blood flow, also warrants investigation. This study investigated PFOA uptake, accumulation, and distribution in thermal neutral (TN) and heat-stressed gilts. Pigs (n = 48) were estrus synchronized and experienced TN (20 °C) or HS (26.6 to 32.2 °C) conditions during which they consumed 70 ng/kg bodyweight PFOA via cookie dough as vehicle control daily. Plasma was collected on d 1, 15, and 20. Liver, ovary, and follicular fluid were collected at euthanasia (d 20). Post-exposure, PFOA was detected in serum, liver, ovary, and follicular fluid. HS increased (P < 0.05) plasma PFOA compared with TN pigs on d 15, but on d 20, plasma PFOA levels in TN and HS pigs were similar. Liver PFOA concentrations were similar between TN and HS pigs. Ovarian PFOA levels tended (P = 0.06) to be higher in TN relative to HS pigs, with an opposing pattern in follicular fluid, in which PFOA concentrations were greater (P < 0.05) in HS pigs. These findings suggest that PFOA apportions to plasma, liver, ovary, and follicular fluid of exposed pigs and that HS alters PFOA distribution, which could negatively impact reproductive health. This study underscores the need to consider the interaction of HS and toxicant exposure in environmental health risk assessments.
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