Toxicity and medical countermeasure studies on the organophosphorus nerve agents VM and VX

To support the effort to eliminate the Syrian Arab Republic chemical weapons stockpile safely, there was a requirement to provide scientific advice based on experimentally derived information on both toxicity and medical countermeasures (MedCM) in the event of exposure to VM, VX or VM-VX mixtures. C...

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Bibliographic Details
Published in:Proceedings of the Royal Society. A, Mathematical, physical, and engineering sciences Mathematical, physical, and engineering sciences, 2015-04, Vol.471 (2176), p.20140891-20140891
Main Authors: Rice, Helen, Dalton, Christopher H., Price, Matthew E., Graham, Stuart J., Green, A. Christopher, Jenner, John, Groombridge, Helen J., Timperley, Christopher M.
Format: Article
Language:English
Subjects:
Chemical Weapons
Nerve Agent
Percutaneous Penetration
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Summary:To support the effort to eliminate the Syrian Arab Republic chemical weapons stockpile safely, there was a requirement to provide scientific advice based on experimentally derived information on both toxicity and medical countermeasures (MedCM) in the event of exposure to VM, VX or VM-VX mixtures. Complementary in vitro and in vivo studies were undertaken to inform that advice. The penetration rate of neat VM was not significantly different from that of neat VX, through either guinea pig or pig skin in vitro. The presence of VX did not affect the penetration rate of VM in mixtures of various proportions. A lethal dose of VM was approximately twice that of VX in guinea pigs poisoned via the percutaneous route. There was no interaction in mixed agent solutions which altered the in vivo toxicity of the agents. Percutaneous poisoning by VM responded to treatment with standard MedCM, although complete protection was not achieved.
ISSN:1364-5021
1471-2946
DOI:10.1098/rspa.2014.0891