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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1986-9-17
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pubmed:abstractText |
The frequencies of base-line and benzo[a]pyrene [(BP) CAS 50-38-8]-induced sister chromatid exchanges (SCE) were measured in peripheral blood lymphocytes from 22 male asbestos-exposed workers and 10 nonexposed workers of comparable age. A clear association between cigarette smoking and asbestos exposure in the sensitivity of lymphocytes to BP was observed. Among asbestos-exposed workers, lymphocytes from those who smoked cigarettes were significantly more susceptible to the induction of SCE by in vitro exposure to BP (P = .01) than were lymphocytes from nonsmokers. Active smoking elevated the base-line SCE frequency in both asbestos-exposed and nonexposed workers (P = .001), and an interaction between smoking and asbestos in the production of base-line SCE was suggested (P = .07). Asbestos exposure alone was not associated with an enhanced susceptibility to the induction of SCE by BP or with an elevation of base-line SCE. Increased age was associated with an increase in SCE inducibility by BP (P = .01), and a history of smoking was marginally associated with SCE inducibility by BP (P = .07). These findings support the hypothesis that an increased susceptibility of asbestos-exposed individuals to polyaromatic hydrocarbon-induced cancer results from an enhanced sensitivity to the induction of genetic damage rather than to an asbestos-induced differential cellular metabolic capacity.
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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:month |
Aug
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pubmed:issn |
0027-8874
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
77
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
321-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3461194-Adult,
pubmed-meshheading:3461194-Age Factors,
pubmed-meshheading:3461194-Aryl Hydrocarbon Hydroxylases,
pubmed-meshheading:3461194-Asbestos,
pubmed-meshheading:3461194-Benzo(a)pyrene,
pubmed-meshheading:3461194-DNA Repair,
pubmed-meshheading:3461194-Environmental Exposure,
pubmed-meshheading:3461194-Enzyme Induction,
pubmed-meshheading:3461194-Humans,
pubmed-meshheading:3461194-Male,
pubmed-meshheading:3461194-Middle Aged,
pubmed-meshheading:3461194-Sister Chromatid Exchange,
pubmed-meshheading:3461194-Smoking
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pubmed:year |
1986
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pubmed:articleTitle |
Enhancement of benzo[a]pyrene-induced sister chromatid exchanges in lymphocytes from cigarette smokers occupationally exposed to asbestos.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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