New tools in diagnosis and biomonitoring of intoxications with organophosphorothioates: Case studies with chlorpyrifos and diazinon

Autor: Schans, M.J. van der, Hulst, A.G., Riet-Van Oeveren, D. van der, Noort, D., Benschop, H.P., Dishovsky, C.
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Chemico-Biological Interactions, 1, 203, 96-102
Popis: Organophosphate (OP) pesticides are neurotoxic compounds that are widely used in agriculture. Classical methods for monitoring OP exposure comprise the measurement of intact OP, its metabolites or cholinesterase activity. Newly developed methods focus on the analysis of the OP adduct bound to proteins such as butyrylcholinesterase (BuChE) and albumin. These adducts can be analyzed by means of fluoride reactivation or by analysis with LC-MS/MS of the pepsin or pronase digest of butyrylcholinesterase and albumin, respectively. The utility of these methods is illustrated through the analysis of plasma samples obtained from patients taken 1-49 days after ingestion of the organophosphate pesticides chlorpyrifos and/or diazinon. Thus, in this particular case several independent methodologies were applied to the biomedical samples, all pointing to the same exposure. © 2012 Elsevier Ireland Ltd. All rights reserved.
Databáze: OpenAIRE