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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7 Pt 1
|
pubmed:dateCreated |
1979-9-1
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pubmed:abstractText |
The dose dependency of the binding of benzo(a)pyrene (BaP) with DNA of mouse epidermis was investigated. BaP-conjugated epidermal DNA was isolated and enzymatically degraded to deoxyribonucleosides. The BaP-DNA adducts were separated by Sephadex LH-20 column or high-performance liquid chromatography. Two major BaP-DNA adducts were found. One was in the region of the elution profile that contained polycyclic aromatic hydrocarbons adducted to deoxyribonucleosides. The other adduct was eluted from Sephadex LH-20 and high-performance liquid chromatography columns before the deoxyribonucleosides and after deoxyribonucleotides. Both adducts of BaP in epidermal DNA reached a maximum 7 hr after a single skin application, and subsequently little, if any, loss of adducts was observed for 49 hr. Both adducts varied as a linear function for topical doses in the range from 0.01 to 300 microgram/mouse. The formation of DNA adducts by BaP occurred in proportion to dose at doses several orders of magnitude below those that are feasible to test for carcinogenicity.
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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:month |
Jul
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pubmed:issn |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
39
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2556-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:445457-Animals,
pubmed-meshheading:445457-Benzopyrenes,
pubmed-meshheading:445457-Chromatography, Gel,
pubmed-meshheading:445457-DNA,
pubmed-meshheading:445457-Dose-Response Relationship, Drug,
pubmed-meshheading:445457-Mice,
pubmed-meshheading:445457-Skin,
pubmed-meshheading:445457-Time Factors
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pubmed:year |
1979
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pubmed:articleTitle |
Dose response for benzo(a)pyrene adducts in mouse epidermal DNA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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