Document Detail


Neurotoxic insecticides inhibit GABA-dependent chloride uptake by mouse brain vesicles.
MedLine Citation:
PMID:  3000377     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The neurotoxic insecticides endrin, dieldrin, aldrin, lindane (gamma-1,2,3,4,5,6-hexachlorocyclohexane) and deltamethrin inhibited gamma-aminobutyric acid-dependent 36Cl- uptake by mouse brain vesicles. Of the insecticides examined, the chlorinated cyclodienes endrin and dieldrin were the most potent, producing 50% inhibition at 2.8 and 13.9 microM, respectively. Lindane and deltamethrin were less effective, and with deltamethrin the effect was incompletely stereospecific. These results demonstrate the disruption of gamma-aminobutyric acid receptor-chloride ionophore function in mammalian brain by neurotoxic insecticides and provide evidence that this complex is the principal site of cyclodiene action.
Authors:
J R Bloomquist; D M Soderlund
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Publication Detail:
Type:  In Vitro; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Biochemical and biophysical research communications     Volume:  133     ISSN:  0006-291X     ISO Abbreviation:  Biochem. Biophys. Res. Commun.     Publication Date:  1985 Nov 
Date Detail:
Created Date:  1986-01-15     Completed Date:  1986-01-15     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0372516     Medline TA:  Biochem Biophys Res Commun     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  37-43     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Bicyclo Compounds / metabolism,  pharmacology
Bicyclo Compounds, Heterocyclic*
Brain / drug effects,  metabolism*
Chlorides / metabolism*
Insecticides / toxicity*
Male
Mice
Mice, Inbred ICR
Picrotoxin / pharmacology
Receptors, GABA-A / drug effects
gamma-Aminobutyric Acid / pharmacology*
Grant Support
ID/Acronym/Agency:
ES02160/ES/NIEHS NIH HHS
Chemical
Reg. No./Substance:
0/Bicyclo Compounds; 0/Bicyclo Compounds, Heterocyclic; 0/Chlorides; 0/Insecticides; 0/Receptors, GABA-A; 124-87-8/Picrotoxin; 56-12-2/gamma-Aminobutyric Acid; 70636-86-1/tert-butylbicyclophosphorothionate

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


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