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• W4306884718 abstract "Organophosphate nerve agents (OPNAs) act as irreversible inhibitors of acetylcholinesterase and can lead to cholinergic crisis including salivation, lacrimation, urination, defecation, gastrointestinal distress, respiratory distress, and seizures. Although the OPNAs have been studied in the past few decades, little is known about the impact on the gut microbiome which has become of increasing interest across fields. In this study, we challenged animals with the OPNA, diisopropylfluorophosphate (DFP, 4mg/kg, s.c.) followed immediately by 2mg/kg atropine sulfate (i.m.) and 25mg/kg 2-pralidoxime (i.m.) and 30 minutes later by 3mg/kg midazolam (i.m.). One hour after midazolam, animals were treated with a dosing regimen of saracatinib (SAR, 20mg/kg, oral), a src family kinase inhibitor, to mitigate DFP-induced neurotoxicity. We collected fecal samples 48 hours, 7 days, and 5 weeks post DFP intoxication. 16S rRNA genes (V4) were amplified to identify the bacterial composition. At 48 hours, a significant increase in the abundance of Proteobacteria and decrease in the abundance of Firmicutes were observed in DFP treated animals. At 7 days there was a significant reduction in Firmicutes and Actinobacteria, but a significant increase in Bacteroidetes in the DFP groups compared to controls. The taxonomic changes at 5 weeks were negligible. There was no impact of SAR administration on microbial composition. There was a significant DFP-induced reduction in alpha diversity at 48 hours but not at 7 days and 5 weeks. There appeared to be an impact of DFP on beta diversity at 48 hours and 7 days but not at 5 weeks. In conclusion, acute doses of DFP lead to short-term gut dysbiosis and SAR had no effect. Understanding the role of gut dysbiosis in long-term toxicity may reveal therapeutic targets." @default.
• W4306884718 created "2022-10-21" @default.
• W4306884718 creator A5000527828 @default.
• W4306884718 creator A5009686187 @default.
• W4306884718 creator A5029906837 @default.
• W4306884718 creator A5060542927 @default.
• W4306884718 date "2022-10-20" @default.
• W4306884718 modified "2023-10-05" @default.
• W4306884718 title "Gut dysbiosis following organophosphate, diisopropylfluorophosphate (DFP), intoxication and saracatinib oral administration" @default.
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• W4306884718 doi "https://doi.org/10.3389/frmbi.2022.1006078" @default.
• W4306884718 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37304619" @default.
• W4306884718 hasPublicationYear "2022" @default.
• W4306884718 type Work @default.
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• W4306884718 hasAuthorship W4306884718A5009686187 @default.
• W4306884718 hasAuthorship W4306884718A5029906837 @default.

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