Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-1-4
pubmed:abstractText
RNAIII-inhibiting peptide (RIP, YSPWTNF-NH2) is a quorum-sensing peptide inhibitor that prevents Staphylococcus aureus toxin production and biofilm formation. A mouse sepsis model was used to test the efficacy of RIP alone or in combination with conventional antibiotics in suppressing S. aureus-induced sepsis. Mice were injected intravenously with 3.0x10(6)CFU of S. aureus ATCC 25923 or with 3.0x10(6)CFU of S. aureus strain Smith diffuse. All animals were randomized to receive intravenously isotonic sodium chloride solution as a control, or 20 mg/kg RIP alone or combined with 20 mg/kg cefazolin, 10 mg/kg imipenem, or 10 mg/kg vancomycin immediately or 6 h after bacterial challenge. Main outcome measures were bacteremia and lethality. All compounds reduced lethality when compared to controls. Although, in general combined-treated groups had significant lower bacterial counts when associated to singly-treated groups only the combination between RIP and vancomycin with respect to cefazolin gave a statistically significant decrease in the lethality rate. Lowest lethality rates (10%) and bacteremia (<10(2)CFU/ml) were obtained when RIP was administered in combination with vancomycin. Because RIP can be synergistic with current antibiotic therapies and help to reduce S. aureus exotoxins production, it can be considered a promising agent to associate with antibiotics for further clinical research into treatment of sepsis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0196-9781
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
169-75
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15629527-Animals, pubmed-meshheading:15629527-Anti-Bacterial Agents, pubmed-meshheading:15629527-Bacteremia, pubmed-meshheading:15629527-Cefazolin, pubmed-meshheading:15629527-Colony Count, Microbial, pubmed-meshheading:15629527-Disease Models, Animal, pubmed-meshheading:15629527-Drug Synergism, pubmed-meshheading:15629527-Imipenem, pubmed-meshheading:15629527-Male, pubmed-meshheading:15629527-Mice, pubmed-meshheading:15629527-Mice, Inbred BALB C, pubmed-meshheading:15629527-Oligopeptides, pubmed-meshheading:15629527-Random Allocation, pubmed-meshheading:15629527-Sensitivity and Specificity, pubmed-meshheading:15629527-Sepsis, pubmed-meshheading:15629527-Staphylococcal Infections, pubmed-meshheading:15629527-Staphylococcus aureus, pubmed-meshheading:15629527-Time Factors, pubmed-meshheading:15629527-Vancomycin
pubmed:year
2005
pubmed:articleTitle
RNAIII-inhibiting peptide improves efficacy of clinically used antibiotics in a murine model of staphylococcal sepsis.
pubmed:affiliation
Institute of Infectious Diseases and Public Health, Università Politecnica delle Marche, Ancona, Italy.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't