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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1981-4-24
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pubmed:abstractText |
Methylene blue enhanced the plasmid curing efficiency of chlorpromazine, imipramine and amitriptyline with strains of Escherichia coli K12 carrying F-prime lac or the resistance factor R-144. In contrast, methylene blue inhibited the elimination of plasmids by acridine orange and ethydium bromide at all concentrations tested. Two metabolic derivatives of chlorpromazine, chlorpromazine sulphoxide and 7.8-dioxochlorpromazine had no plasmid curing effect even in the presence of methylene blue. Amitriptyline, 7,8-dioxochlorpromazine and acridine orange were effective inhibitors of the conjugal transfer of the resistance plasmid, R-144, whilst methylene blue, chlorpromazine sulphoxide, and imipramine had only slight effects. We were therefore unable to demonstrate a simple correlation between curing ability and inhibition of plasmid transfer amongst the psychoactive drugs tested. A mechanism of plasmid curing by surface action of the drugs is suggested as an alternative to direct intercalation of the drugs into plasmid DNA.
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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/Acridine Orange,
http://linkedlifedata.com/resource/pubmed/chemical/Amitriptyline,
http://linkedlifedata.com/resource/pubmed/chemical/Chlorpromazine,
http://linkedlifedata.com/resource/pubmed/chemical/Ethidium,
http://linkedlifedata.com/resource/pubmed/chemical/Imipramine,
http://linkedlifedata.com/resource/pubmed/chemical/Methylene Blue
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pubmed:status |
MEDLINE
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pubmed:issn |
0001-6187
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
27
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
309-15
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pubmed:dateRevised |
2006-4-13
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pubmed:meshHeading |
pubmed-meshheading:7008510-Acridine Orange,
pubmed-meshheading:7008510-Amitriptyline,
pubmed-meshheading:7008510-Chlorpromazine,
pubmed-meshheading:7008510-Conjugation, Genetic,
pubmed-meshheading:7008510-Escherichia coli,
pubmed-meshheading:7008510-Ethidium,
pubmed-meshheading:7008510-F Factor,
pubmed-meshheading:7008510-Imipramine,
pubmed-meshheading:7008510-Methylene Blue,
pubmed-meshheading:7008510-R Factors
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pubmed:year |
1980
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pubmed:articleTitle |
New mechanism of plasmid curing by psychotropic drugs.
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pubmed:publicationType |
Journal Article
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