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Crute CE, Landon CD, Garner A, Hall SM, Everitt JI, Zhang S, Blake B, Olofsson D, Chen H, Stapleton HM, Murphy SK, Feng L. Maternal exposure to perfluorobutane sulfonate (PFBS) during pregnancy: evidence of adverse maternal and fetoplacental effects in New Zealand White (NZW) rabbits. Toxicol Sci 2023; 191:239-252. [PMID: 36453863 PMCID: PMC9936209 DOI: 10.1093/toxsci/kfac126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Perfluorobutanesulfonic acid (PFBS) is a replacement for perfluorooctanesulfonic acid (PFOS) that is increasingly detected in drinking water and human serum. Higher PFBS exposure is associated with risk for preeclampsia, the leading cause of maternal and infant morbidity and mortality in the United States. This study investigated relevant maternal and fetal health outcomes after gestational exposure to PFBS in a New Zealand White rabbit model. Nulliparous female rabbits were supplied drinking water containing 0 mg/l (control), 10 mg/l (low), or 100 mg/l (high) PFBS. Maternal blood pressure, body weights, liver and kidney weights histopathology, clinical chemistry panels, and thyroid hormone levels were evaluated. Fetal endpoints evaluated at necropsy included viability, body weights, crown-rump length, and liver and kidney histopathology, whereas placenta endpoints included weight, morphology, histopathology, and full transcriptome RNA sequencing. PFBS-high dose dams exhibited significant changes in blood pressure markers, seen through increased pulse pressure and renal resistive index measures, as well as kidney histopathological changes. Fetuses from these dams showed decreased crown-rump length. Statistical analysis of placental weight via a mixed model statistical approach identified a significant interaction term between PFBS high dose and fetal sex, suggesting a sex-specific effect on placental weight. RNA sequencing identified the dysregulation of angiotensin (AGT) in PFBS high-dose placentas. These results suggest that PFBS exposure during gestation leads to adverse maternal outcomes, such as renal injury and hypertension, and fetal outcomes, including decreased growth parameters and adverse placenta function. These outcomes raise concerns about pregnant women's exposure to PFBS and pregnancy outcomes.
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Affiliation(s)
- Christine E Crute
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, North Carolina 27710, USA
- Nicholas School of the Environment, Duke University, Durham, North Carolina 27710, USA
- Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, North Carolina 27710, USA
| | - Chelsea D Landon
- Division of Laboratory Animal Resources, Duke University Medical Center, Durham, North Carolina 27710, USA
- Department of Pathology, Duke University School of Medicine, Duke University, Durham, North Carolina 27710, USA
| | - Angela Garner
- Department of Pathology, Duke University School of Medicine, Duke University, Durham, North Carolina 27710, USA
| | - Samantha M Hall
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, North Carolina 27710, USA
- Nicholas School of the Environment, Duke University, Durham, North Carolina 27710, USA
| | - Jeffery I Everitt
- Department of Pathology, Duke University School of Medicine, Duke University, Durham, North Carolina 27710, USA
| | - Sharon Zhang
- Nicholas School of the Environment, Duke University, Durham, North Carolina 27710, USA
| | - Bevin Blake
- Curriculum in Toxicology and Environmental Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | | | - Henry Chen
- Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, North Carolina 27710, USA
| | - Heather M Stapleton
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, North Carolina 27710, USA
- Nicholas School of the Environment, Duke University, Durham, North Carolina 27710, USA
| | - Susan K Murphy
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, North Carolina 27710, USA
- Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, North Carolina 27710, USA
| | - Liping Feng
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, North Carolina 27710, USA
- Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, North Carolina 27710, USA
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