Document Detail


Metabolism of tetramethrin isomers in rat. I. Identification of a sulphonic acid type of conjugate and reduced metabolites.
MedLine Citation:
PMID:  8079506     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
1. Urinary and faecal metabolites in rat treated with 14C-labelled (1RS, trans)-tetramethrin [3,4,5,6-tetrahydrophthalimidomethyl (1RS, trans)-chrysanthemate] were identified using chromatographic techniques and spectroanalyses (nmr and ms). 2. 3-Hydroxy-cyclohexane-1,2-dicarboximide was found to be a major and unique urinary metabolite, reduced at the 1,2-double bond of the 3,4,5,6-tetrahydrophthalimide moiety. 3. The major faecal metabolites were sulphonic acid conjugates, having a sulphonic acid group incorporated into the double bond of the 3,4,5,6-tetrahydrophthalimide moiety. 4. On the basis of the metabolites identified here, the major biotransformation reactions of trans-tetramethrin in rats are: (1) cleavage of the ester linkage; (2) cleavage of the imide linkage; (3) hydroxylation of the cyclohexene or cyclohexane ring of the 3,4,5,6-tetrahydrophthalimide moiety; (4) oxidation at the methyl group of the isobutenyl moiety; (5) reduction at the 1,2-double bond of the 3,4,5,6-tetrahydrophthalimide moiety; and (6) incorporation of a sulphonic acid group into the 1,2-double bond of the 3,4,5,6-tetrahydrophthalimide moiety.
Authors:
Y Tomigahara; M Mori; K Shiba; N Isobe; H Kaneko; I Nakatsuka; H Yamada
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Xenobiotica; the fate of foreign compounds in biological systems     Volume:  24     ISSN:  0049-8254     ISO Abbreviation:  Xenobiotica     Publication Date:  1994 May 
Date Detail:
Created Date:  1994-10-06     Completed Date:  1994-10-06     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  1306665     Medline TA:  Xenobiotica     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  473-84     Citation Subset:  IM    
Affiliation:
Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd, Osaka, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Feces / chemistry
Female
Isomerism
Magnetic Resonance Spectroscopy / methods
Male
Oxidation-Reduction
Pyrethrins / metabolism*,  urine
Rats
Rats, Sprague-Dawley
Sulfonic Acids / metabolism*,  urine
Chemical
Reg. No./Substance:
0/Pyrethrins; 0/Sulfonic Acids; 7696-12-0/tetramethrin

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


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