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Katz I, Tissier R, Kohlhauer M, Lemaire J, Hamlin A, Chalopin M, Farjot G, Milet A. Argon pharmacokinetics: measurements in pigs and analysis in humans using a physiologically based pharmacokinetics model. Med Gas Res 2024; 14:206-212. [PMID: 39073329 DOI: 10.4103/mgr.mgr_20_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 01/22/2024] [Indexed: 07/30/2024] Open
Abstract
The primary objective of this study was to investigate the pharmacokinetics of inhaled argon in young pigs using mechanical ventilation. Also a physiologically based model of argon pharmacokinetics (PBPK) is validated with human data for xenon from the literature and the new data from juvenile pigs. The inherent difficulty in performing pharmacokinetics studies of argon makes the use of the PBPK model especially relevant. The model is used to investigate argon pharmacokinetics for adult and neonate applications. Juvenile pigs (n = 4) were anesthetized, submitted to endotracheal intubation, and mechanical ventilation using a conventional ventilator. Argon inhalation was achieved by switching the animal from the first mechanical ventilator (with air/oxygen) to a second one that was supplied with 75% argon and 25% oxygen from premixed gas cylinders. This administration yielded blood samples that were analyzed using a quadrupole based technique for determining argon concentration. The range of blood:gas partition coefficient corresponding to the average measured Cmax of 190-872 μM is 0.005-0.022. Based on the average curve, T1/2= 75 seconds. The PBPK is shown to be in general agreement with the experimental data in pigs. Inhaled argon administration exhibited an on-off nature such that AUC was proportional to administration time. Confidence in the PBPK model and the remarkably robust and stable on-off nature of argon pharmacokinetics, notwithstanding intersubject variability and comorbidity, suggests that inhaled argon could readily be applied to any treatment regime.
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Affiliation(s)
- Ira Katz
- Early Drug Development, Air Liquide Santé International, Les loges-en-Josas, France
| | - Renaud Tissier
- Univ Paris Est Créteil, Institut National de la Santé et de la Recherche Médicale, Mondor Institute for Biomedical Research, Créteil, France
- Ecole Nationale Vétérinaire d'Alfort, Mondor Institute for Biomedical Research, Maisons-Alfort, France
| | - Matthias Kohlhauer
- Univ Paris Est Créteil, Institut National de la Santé et de la Recherche Médicale, Mondor Institute for Biomedical Research, Créteil, France
- Ecole Nationale Vétérinaire d'Alfort, Mondor Institute for Biomedical Research, Maisons-Alfort, France
| | - Joël Lemaire
- Institut de Chimie Physique, Centre National de la Recherche Scientifique, Université Paris-Saclay, Orsay, France
| | - Arthur Hamlin
- Institut de Chimie Physique, Centre National de la Recherche Scientifique, Université Paris-Saclay, Orsay, France
| | - Matthieu Chalopin
- Early Drug Development, Air Liquide Santé International, Les loges-en-Josas, France
| | - Géraldine Farjot
- Early Drug Development, Air Liquide Santé International, Les loges-en-Josas, France
| | - Aude Milet
- Early Drug Development, Air Liquide Santé International, Les loges-en-Josas, France
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Vallée N, Rives S, Desruelle AV, Marzetti S, Barchasz V, Risso JJ, Gies V. High Oxygen Consumption in SARS-COV2: Could the Development of Low-Cost Oxygen Rebreather Be Considered? Front Physiol 2021; 11:607913. [PMID: 33584333 PMCID: PMC7873898 DOI: 10.3389/fphys.2020.607913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/21/2020] [Indexed: 11/29/2022] Open
Affiliation(s)
- Nicolas Vallée
- Institut de Recherche Biomédicale des Armées_Equipe de Recherche Subaquatique Opérationnelle, Toulon, France
| | - Sarah Rives
- Institut de Recherche Biomédicale des Armées_Equipe de Recherche Subaquatique Opérationnelle, Toulon, France
| | - Anne-Virginie Desruelle
- Institut de Recherche Biomédicale des Armées_Equipe de Recherche Subaquatique Opérationnelle, Toulon, France
| | | | | | - Jean-Jacques Risso
- Institut de Recherche Biomédicale des Armées_Equipe de Recherche Subaquatique Opérationnelle, Toulon, France
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