Persistence of the anti-cholinesterase soman in rats : Antagonism with a non-toxic simulator of this organophosphate
article
Anaesthetized, atropinized rats were posioned with 6x LD50 soman (1,2,2-trimethylpropyl methylphosphonofluoridate). Purified acetylcholinesterase, injected i.v. 75 min later, was rapidly inhibited, presumably by soman stored in a 'depot' from which it was gradually released. Existence of a depot is supported by the effect of a soman-simulator ('som-sim'), an organophosphonate structurally similar to soman but devoid of anti-cholinesterase activity. Som-sim can expel soman from the depot, to counteract its formation. Som-sim prophylaxis greatly enhances survival. Chemicals/CAS: acetylcholinesterase, 9000-81-1; atropine, 51-55-8, 55-48-1; soman, 96-64-0; Acetylcholinesterase, EC 3.1.1.7; HI 6, 34433-31-3; Organophosphorus Compounds; Pyridinium Compounds; Soman, 96-64-0
Topics
AcetylcholinesteraseAtropineSomanAnimal experimentControlled studyDrug intoxicationIntoxicationIntravenous drug administrationRatSimulatorSustained release preparationAcetylcholinesteraseAnimalMaleOrganophosphorus CompoundsPyridinium CompoundsRatsSomanTime FactorsG agentsCholinesteraseCholinesterase inhibitorsProphylaxisTherapyOximesReaction kinetics
TNO Identifier
229049
ISSN
00142999
Source
European Journal of Pharmacology, 69(3), pp. 379-383.
Pages
379-383
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