ArticleToxicological research2023
Toxicologic pathological mechanism of acute lung injury induced by oral administration of benzalkonium chloride in mice.
Article in Toxicological research, 2023. 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.
- Differential and Sex-Specific Toxicity of Aspirated Quaternary Ammonium Compounds.Environmental science & technology · 2026Article
- Research progress of mitochondrial dysfunction induced pyroptosis in acute lung injury.Respiratory research · 2024Review
- Article
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Authors and funding
11 authors.
Funding
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Abstract
Benzalkonium chloride (BAC) intoxication causes fatal lung injuries, such as acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). However, the pathogenesis of ALI/ARDS induced by BAC ingestion is poorly understood. This study aimed to clarify the mechanism of lung toxicity after BAC ingestion in a mouse model. BAC was orally administered to C57BL/6 mice at doses of 100, 250, and 1250 mg/kg. After administration, BAC concentrations in the blood and lungs were evaluated via liquid chromatography with tandem mass spectrometry. Lung tissue injury was evaluated via histological and protein analyses. Blood and lung BAC concentration levels after oral administration increased in a dose-dependent manner, with the concentrations directly proportional to the dose administered. The severity of lung injury worsened over time after the oral administration of 1250 mg/kg BAC. An increase in the terminal transferase dUTP nick end labeling-positive cells and cleaved caspase-3 levels was observed in the lungs after 1250 mg/kg BAC administration. In addition, increased cleaved caspase-9 levels and mitochondrial cytochrome c release into the cytosol were observed. These results suggest that lung tissue injury with excessive apoptosis contributes to BAC-induced ALI development and exacerbation. Our findings provide useful information for developing an effective treatment for ALI/ARDS induced by BAC ingestion.
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