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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1978-9-15
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pubmed:abstractText |
Piperacillin, a new semisynthetic penicillin, was compared with other semisynthetic penicillins, cephalosporins, and aminoglycosides by the agar dilution method against 3,600 isolates of facultative gram-negative bacilli, Bacteroides fragilis, and enterococci. At 64 mug/ml, piperacillin inhibited 90% of the isolates in each group of organisms tested except for Escherichia coli (83% inhibited by 64 mug/ml). Compared with carbenicillin, piperacillin had a 16-fold increase in activity by weight against Pseudomonas aeruginosa and the enterococcus, an 8-fold increase against Serratia marcescens, and a 4-fold increase against B. fragilis and Enterobacter species. Piperacillin was highly active against carbenicillin-resistant Klebsiella pneumoniae and inhibited many aminoglycoside-resistant organisms. Except for P. aeruginosa, the minimum bactericidal concentration of piperacillin was usually within one tube dilution of the minimum inhibitory concentration. Approximately one-third of the gram-negative bacilli were inhibited synergistically by piperacillin plus amikacin, but no synergy could be demonstrated against enterococci. Piperacillin's in vitro activity against gram-negative bacilli was similar to gentamicin's except that it also included B. fragilis, and piperacillin was decidedly superior to presently available penicillins against K. pneumoniae.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/677861-1008552,
http://linkedlifedata.com/resource/pubmed/commentcorrection/677861-1137369,
http://linkedlifedata.com/resource/pubmed/commentcorrection/677861-4325956,
http://linkedlifedata.com/resource/pubmed/commentcorrection/677861-4711781,
http://linkedlifedata.com/resource/pubmed/commentcorrection/677861-4951792,
http://linkedlifedata.com/resource/pubmed/commentcorrection/677861-5001629,
http://linkedlifedata.com/resource/pubmed/commentcorrection/677861-810533,
http://linkedlifedata.com/resource/pubmed/commentcorrection/677861-836015,
http://linkedlifedata.com/resource/pubmed/commentcorrection/677861-921239
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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 |
Jun
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pubmed:issn |
0066-4804
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
13
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
944-50
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading | |
pubmed:year |
1978
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pubmed:articleTitle |
In vitro studies of piperacilin, a new semisynthetic penicillin.
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pubmed:publicationType |
Journal Article
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