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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
20
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pubmed:dateCreated |
1987-11-12
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pubmed:abstractText |
Postimplantation rat embryos (Day 10) were exposed in vitro to teratogenic concentrations of 4-hydroperoxycyclophosphamide, an activated form of cyclophosphamide, and phosphoramide mustard, the major teratogenic metabolite of cyclophosphamide. Following a 5-h exposure to these agents, drug-induced DNA damage was assessed by alkaline elution. Both drugs induced detectable DNA cross-linking at teratogenic concentrations. Alkaline elution combined with proteinase K digestion indicated that approximately half of the DNA cross-linking was DNA-DNA cross-linking and the other half was DNA-protein cross-linking. In addition to DNA cross-linking, phosphoramide mustard produced DNA strand breaks and/or alkaline labile sites. However, 4-hydroperoxycyclophosphamide did not produce detectable DNA strand breaks or alkaline labile sites. Our data also indicate that the induction of abnormal morphogenesis by 4-hydroperoxycyclophosphamide and phosphoramide mustard is correlated with drug-induced DNA cross-linking.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cyclophosphamide,
http://linkedlifedata.com/resource/pubmed/chemical/DNA, Single-Stranded,
http://linkedlifedata.com/resource/pubmed/chemical/Endopeptidase K,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphoramide Mustards,
http://linkedlifedata.com/resource/pubmed/chemical/Serine Endopeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/perfosfamide,
http://linkedlifedata.com/resource/pubmed/chemical/phosphoramide mustard
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
47
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
5421-6
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3477317-Animals,
pubmed-meshheading:3477317-Cyclophosphamide,
pubmed-meshheading:3477317-DNA, Single-Stranded,
pubmed-meshheading:3477317-DNA Damage,
pubmed-meshheading:3477317-Embryonic Development,
pubmed-meshheading:3477317-Endopeptidase K,
pubmed-meshheading:3477317-Female,
pubmed-meshheading:3477317-Hydrogen-Ion Concentration,
pubmed-meshheading:3477317-Nucleic Acid Conformation,
pubmed-meshheading:3477317-Phosphoramide Mustards,
pubmed-meshheading:3477317-Pregnancy,
pubmed-meshheading:3477317-Rats,
pubmed-meshheading:3477317-Serine Endopeptidases
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pubmed:year |
1987
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pubmed:articleTitle |
DNA cross-linking and single-strand breaks induced by teratogenic concentrations of 4-hydroperoxycyclophosphamide and phosphoramide mustard in postimplantation rat embryos.
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pubmed:affiliation |
Department of Pediatrics, University of Washington, Seattle 98195.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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