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Neurotoxic esterase: not so toxic?

Authors
O'Callaghan-JP
Source
Nat Genet 2003 Apr; 33(4):437-438
NIOSHTIC No.
20022981
Abstract
Although of recent concern because of their use as chemical warfare agents, organophosphates have long been used as pesticides. As a class of compounds, organophosphate esters are widely recognized for their potential to inhibit serine-containing esterases owing to phosphorylation of serine residues at the active site of these enzymes, the most notable of which is acetylcholinesterase. Most features of the acute toxicity of these compounds (used as nerve gas or as pesticides) relate to their inhibition of this enzyme. A less well known feature of some organophosphates is their propensity to cause a delayed neuropathy that has been termed organophosphate-induced delayed neurotoxicity (OPIDN; ref. 1). OPIDN is a progressive neurological condition characterized by weakness, ataxia and subsequent paralysis of the limbsl.2. The major neuropathological hallmarks of OPIDN are degeneration of the long axons of the spinal cord and peripheral neurons, although assessments of neurotoxicity using sensitive stains for neurodegeneration show that selected regions of the brain are also involved3.
Keywords
Neurotoxic-effects; Neurotoxicity; Neurotoxicology; Neurotoxins; Toxins; Toxic-effects; Chemical-warfare-agents; Organo-phosphorus-compounds; Pesticides; Esters
Contact
Molecular Neurotoxicology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, Centers for Disease Control and Prevention-NIOSH, Morgantown, WV 26505, USA
CODEN
NGENEC
Publication Date
20030401
Document Type
Journal Article
Email Address
jdo5@cdc.gov
Fiscal Year
2003
NTIS Accession No.
NTIS Price
Issue of Publication
4
ISSN
1061-4036
NIOSH Division
HELD
Source Name
Nature Genetics
State
WV
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