Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2005-9-5
pubmed:abstractText
MSI-78 is a 22 amino acid amphipathic peptide with potent antimicrobial activity against Gram-positive and Gram-negative organisms, including antibiotic-resistant strains. In this study, we assessed the in vitro activity of MSI-78 alone and in combination with eight clinically used antimicrobial agents against several strains of Pseudomonas aeruginosa, Staphylococcus aureus, Staphylococcus epidermidis and Escherichia coli isolated from blood of neutropenic febrile patients. Antimicrobial activity of MSI-78 was measured by minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), time-kill studies and checkerboard titration method. The Gram-negative isolates were susceptible to the peptide at concentrations in the range 0.50-16 mg/L, while staphylococci showed lower susceptibility. MSI-78 demonstrated a higher antimicrobial activity than colistin against Gram-negative organisms. The checkerboard titration method demonstrated synergy when the peptide was combined with beta-lactams. These results provide evidence for the potential use of MSI-78 in the management of severe infections in neutropenic patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0924-8579
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
235-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
In vitro activity of MSI-78 alone and in combination with antibiotics against bacteria responsible for bloodstream infections in neutropenic patients.
pubmed:affiliation
Institute of Infectious Diseases and Public Health, Università Politecnica delle Marche, Ancona, Italy. anconacmi@interfree.it
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't