Document Detail


Environmental monitoring using acetylcholinesterase inhibition in vitro. A case study in two Mexican lagoons.
MedLine Citation:
PMID:  11460718     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cholinesterase inhibition is considered a specific biomarker of exposure and effect for organophosphorous pesticides. Its use for monitoring has been hindered, particularly in tropical countries where organophosphates are widely used for malaria and dengue control, because of the frequent lack of suitable controls. An in vitro technique is proposed as a biochemical method for monitoring pollutant mixtures in sediment toxicity tests. Brain homogenate from the fish Oreochromis niloticus is used as the enzyme source. Optimum incubation time, extraction solvent and effect of crude oil on acetylcholinesterase (AChE) are reported. The method described was used in sediments from two Mexican lagoons, located in an oil extraction area where pesticides are used in agriculture and vector control campaigns. AChE inhibitions from 3 to 21% were found in these lagoons, even in the presence of high concentrations of petroleum.
Authors:
G Rodríguez-Fuentes; G Gold-Bouchot
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Publication Detail:
Type:  Case Reports; In Vitro; Journal Article    
Journal Detail:
Title:  Marine environmental research     Volume:  50     ISSN:  0141-1136     ISO Abbreviation:  Mar. Environ. Res.     Publication Date:    2000 Jul-Dec
Date Detail:
Created Date:  2001-07-19     Completed Date:  2001-08-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9882895     Medline TA:  Mar Environ Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  357-60     Citation Subset:  IM    
Affiliation:
CINVESTAV, Unidad Mérida Departamento de Recursos del Mar, Apdo. Postal 73 Cordemex, Mérida Yucatan 97310, Mexico.
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MeSH Terms
Descriptor/Qualifier:
Acetylcholinesterase / metabolism*
Animals
Aquaculture
Brain / enzymology
Cholinesterase Inhibitors / toxicity*
Environmental Monitoring / methods*
Fresh Water
Geologic Sediments
Mexico
Soil Pollutants / toxicity
Tilapia / metabolism*
Water Pollutants, Chemical / toxicity*
Chemical
Reg. No./Substance:
0/Cholinesterase Inhibitors; 0/Soil Pollutants; 0/Water Pollutants, Chemical; EC 3.1.1.7/Acetylcholinesterase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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