Journal
TOXICOLOGY LETTERS
Volume 151, Issue 1, Pages 219-233Publisher
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/j.toxlet.2004.01.022
Keywords
organophosphorus insecticide; nerve agent; phosphotriesterase; poisoning; prophylaxis; treatment
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Organophosphorus compounds (OPs) are being used as insecticides and warfare agents. OP insecticides represent an important problem of public health, causing around 200,000 deaths annually. The World Health Organization has pointed to the necessity to introduce new medical practices that improve the results of classical treatments. Many studies have shown that the administration of phosphotriesterases (enzymes that detoxify OPs through hydrolysis) is a promising treatment of persons poisoned with OPs. Such an enzyme-based treatment might introduce important improvements in the treatment of patients having ingested large amounts of OPs. Phosphotriesterases might also be suitable for prophylactic treatment of persons at risk to be severely exposed. The new experimental treatments do not exhibit the intrinsic neurotoxicity of the classical prophylaxis based on carbarnates and antimuscarinic drugs. Experimental data suggest that might be time to initiate clinical trials in order to study the efficacy of phosphotriesterases in the therapy and prophylaxis of OP intoxication. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
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