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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1993-8-3
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pubmed:abstractText |
Acetylation stabilized the phenolic metabolites of 7H-dibenzo[c,g]carbazole (DBC) and made it possible to accumulate greater amounts of metabolites for comprehensive chemical structural elucidation and quantification without the use of radiolabeled DBC. High-resolution mass spectral data and 1H NMR and fluorescence spectra were used to confirm the existence of 5-OH-DBC, 3-OH-DBC, 1-OH-DBC, and the oxidative dimer, 6,6'-bis-(5-OH-DBC), in the acetylated metabolite mixture formed in vitro by 3-methylcholanthrene-induced rat liver microsomes. Using the synthesized acetoxy-DBC derivatives as standards, the HPLC external standard method was employed for quantitation of the major DBC metabolites after acetylation. The quantities of 5-OH-DBC, 3-OH-DBC, 1-OH-DBC, and DBC in the metabolite mixture determined using the external standard method were found to agree with those calculated using the radiometric method. Acetylation is a promising nonradiometric qualitative and quantitative technique for further metabolism studies of DBC and analogues which produce unstable monohydroxylated metabolites.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0893-228X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
6
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
345-50
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8318657-Acetylation,
pubmed-meshheading:8318657-Animals,
pubmed-meshheading:8318657-Carbazoles,
pubmed-meshheading:8318657-Carcinogens,
pubmed-meshheading:8318657-Male,
pubmed-meshheading:8318657-Microsomes, Liver,
pubmed-meshheading:8318657-Phenols,
pubmed-meshheading:8318657-Rats,
pubmed-meshheading:8318657-Rats, Sprague-Dawley
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pubmed:articleTitle |
Acetylation of phenolic derivatives of 7H-dibenzo[c,g]carbazole: identification and quantitation of major metabolites by rat liver microsomes.
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pubmed:affiliation |
Department of Environmental Health, University of Cincinnati Medical Center, Ohio 45267-0056.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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