نتایج جستجو برای: lactams
تعداد نتایج: 5234 فیلتر نتایج به سال:
We report the case of a pediatric patient with a Salmonella enterica serotype Infantis infection. Detailed microbiological investigation revealed that this isolate carries four beta-lactamase genes (bla(TEM-1b) variant, bla(SHV-5), bla(CTX-M-15), and bla(CMY-2)) conferring resistance to all beta-lactams but imipenem. This is the first report of a Salmonella isolate with CTX-M and AmpC enzymes o...
Using a nitrocefin competition assay, I determined the relative substrate affinity index (RSAI) values of nine clinically significant beta-lactamase enzymes against a range of beta-lactams. Using selected beta-lactam substrates, I observed large differences in the RSAI values of the nine enzymes that were sufficient in many cases to positively identify specific enzymes. I made use of the unique...
3. Barza M, Ioannidis JP, Cappelleri JC, Lau J. Single or multiple daily doses of aminoglycosides: a meta-analysis. BMJ 1996; 312:338–45. 4. Leibovici L, Paul M, Poznanski O, et al. Monotherapy versus beta-lactam–aminoglycoside combination treatment for Gram-negative bacteremia: a prospective, observational study. Antimicrob Agents Chemother 1997; 41:1127–33. 5. Falagas ME. Monotherapy versus b...
Synthetic studies on bioactive compounds are described, involving phytotoxins (tobacco wildfire disease toxin tabtoxinine-beta-lactam and rice blast disease toxin pyricuol) a glutarimide antibiotic (actiketal) black vomit toxin (gizzerosine) and marine products (antifeedant pteroenone and serinol compound didemniserinolipid).
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