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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1987-7-2
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pubmed:abstractText |
The relative reactivity of a series of nitroaromatic radiosensitizers toward the C(5') radical intermediate leading to 8,5'-cycloadenosine formation in deoxygenated solutions of irradiated polyadenylic acid (poly A) was assessed using standard competition kinetic analysis. Formation of 8,5'-cycloadenosine was assayed by an indirect, competitive, enzyme-linked immunosorbent assay (ELISA) described in an earlier report. In the absence of oxygen, the nitroaromatics inhibit 8,5'-cyclonucleoside formation in a way which generally increases with radiosensitizer electron affinity. Although hydroxyl radical scavenging by the nitroaromatics may account for a relatively small decrease in 8,5'-cyclonucleoside formation, the data suggest that oxidation of the C(5') radical intermediate is the more plausible explanation for the decreased yield of the 8,5'-cyclonucleoside with increasing nitroaromatic electron affinity.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/8,5'-cycloadenosine,
http://linkedlifedata.com/resource/pubmed/chemical/Adenosine,
http://linkedlifedata.com/resource/pubmed/chemical/Free Radicals,
http://linkedlifedata.com/resource/pubmed/chemical/Misonidazole,
http://linkedlifedata.com/resource/pubmed/chemical/Nitrobenzenes,
http://linkedlifedata.com/resource/pubmed/chemical/Poly A,
http://linkedlifedata.com/resource/pubmed/chemical/Radiation-Sensitizing Agents
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0020-7616
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
51
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
629-39
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:3294692-Adenosine,
pubmed-meshheading:3294692-Chemical Phenomena,
pubmed-meshheading:3294692-Chemistry,
pubmed-meshheading:3294692-DNA Damage,
pubmed-meshheading:3294692-Free Radicals,
pubmed-meshheading:3294692-Gamma Rays,
pubmed-meshheading:3294692-Immunologic Techniques,
pubmed-meshheading:3294692-Misonidazole,
pubmed-meshheading:3294692-Nitrobenzenes,
pubmed-meshheading:3294692-Poly A,
pubmed-meshheading:3294692-Radiation-Sensitizing Agents,
pubmed-meshheading:3294692-Structure-Activity Relationship
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pubmed:year |
1987
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pubmed:articleTitle |
Interaction of nitroaromatic radiosensitizers with irradiated polyadenylic acid as measured by an indirect immunochemical assay with specificity for the 8,5'-cycloadenosine moiety.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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