ArticleEnvironmental science & technology2024
Distribution of 2,2',5,5'-Tetrachlorobiphenyl (PCB52) Metabolites in Adolescent Rats after Acute Nose-Only Inhalation Exposure.
Article in Environmental science & technology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- The Bladder as a Target for PCB Toxicity: Evidence from PCB Levels, Phase I Metabolite Levels, and Cytochrome P450 Expression Following Developmental Exposure to a Human-Relevant PCB Mixture in Mice.Chemical research in toxicology · 2026Article
- Aroclor 1254 inhibits anti-inflammatory macrophage polarization through an AhR-dependent mechanism.Journal of the Endocrine Society · 2026Article
- Maternal-Fetal Transfer and Toxicokinetics of 2,2',5,5'-Tetrachlorobiphenyl, [Chemical research in toxicology · 2025Article
- A Scoping Review of Neurotoxic and Behavioral Outcomes Following Polychlorinated Biphenyl (PCB) Exposure in Post-Weaned Rodents.International journal of molecular sciences · 2025Article
- Whole-Body Disposition and Metabolism of [Environmental science & technology · 2025Article
- Analysis of Honey and Environmental Samples from BEN Endemic Villages in Serbia: Identification of a Novel Human Exposure Pathway for Aristolochic Acids and Aristolactams.Journal of agricultural and food chemistry · 2025Article
- Identification of polychlorinated biphenyls (PCBs) and PCB metabolites associated with changes in the gut microbiome of female mice exposed to an environmental PCB mixture.Journal of hazardous materials · 2025Article
- [Determination of four classes of 34 chlorinated persistent organic pollutants in seawater by solid-phase extraction and gas chromatography-electrostatic field orbitrap high resolution mass spectrometry].Se pu = Chinese journal of chromatography · 2025Article
- Exposure to PCB52 (2,2',5,5'-tetrachlorobiphenyl) blunts induction of the gene for uncoupling protein 1 (UCP1) in white adipose.Environmental toxicology and pharmacology · 2025Article
- Inhalation of 2,2',5,5'-tetrachlorobiphenyl (PCB52) causes changes to the gut microbiome throughout the gastrointestinal tract.Journal of hazardous materials · 2024Article
- Effects of 28-day nose-only inhalation of PCB52 (2,2',5,5'-Tetrachlorobiphenyl) on the brain transcriptome.Toxicology · 2024Article
- Upregulation of fatty acid synthesis genes in the livers of adolescent female rats caused by inhalation exposure to PCB52 (2,2',5,5'-Tetrachlorobiphenyl).Environmental toxicology and pharmacology · 2024Article
- Distribution of 2,2',5,5'-Tetrachlorobiphenyl (PCB52) Metabolites in Adolescent Rats after Acute Nose-Only Inhalation Exposure.Environmental science & technology · 2024Article
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8 authors.
Funding
Abstract
Inhalation of PCB-contaminated air is increasingly recognized as a route for PCB exposure. Because limited information about the disposition of PCBs following inhalation exposure is available, this study investigated the disposition of 2,2',5,5'-tetrachlorobiphenyl (PCB52) and its metabolites in rats following acute, nose-only inhalation of PCB52. Male and female Sprague-Dawley rats (50-58 days of age, 210 ± 27 g; n = 6) were exposed for 4 h by inhalation to approximately 14 or 23 μg/kg body weight of PCB52 using a nose-only exposure system. Sham animals (n = 6) were exposed to filtered lab air. Based on gas chromatography-tandem mass spectrometry (GC-MS/MS), PCB52 was present in adipose, brain, intestinal content, lung, liver, and serum. 2,2',5,5'-Tetrachlorobiphenyl-4-ol (4-OH-PCB52) and one unknown monohydroxylated metabolite were detected in these compartments except for the brain. Liquid chromatography-high resolution mass spectrometry (LC-HRMS) analysis identified several metabolites, including sulfated, methoxylated, and dechlorinated PCB52 metabolites. These metabolites were primarily found in the liver (7 metabolites), lung (9 metabolites), and serum (9 metabolites) due to the short exposure time. These results demonstrate for the first time that complex mixtures of sulfated, methoxylated, and dechlorinated PCB52 metabolites are formed in adolescent rats following PCB52 inhalation, laying the groundwork for future animal studies of the adverse effects of inhaled PCB52.
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