scholarly journals In Vitro Activity of Telavancin against Gram-Positive Clinical Isolates Recently Obtained in Europe

2007 ◽  
Vol 51 (9) ◽  
pp. 3420-3424 ◽  
Author(s):  
W. T. M. Jansen ◽  
A. Verel ◽  
J. Verhoef ◽  
D. Milatovic
Keyword(s):  
Streptococcus Pneumoniae ◽  
Methicillin Resistance ◽  
Vitro Activity ◽  
In Vitro Activity ◽  
Viridans Streptococci ◽  
Gram Positive ◽  
Vancomycin Resistant Enterococci ◽  
Group A ◽  
Vancomycin Resistant

ABSTRACT The in vitro activity of telavancin was tested against 620 gram-positive isolates. For staphylococci, MICs at which 50 and 90% of isolates were inhibited (MIC50 and MIC90) were both 0.25 μg/ml, irrespective of methicillin resistance. MIC50 and MIC90 were 0.25 and 0.5 μg/ml for vancomycin-susceptible enterococci and 1 and 2 μg/ml for vancomycin-resistant enterococci, respectively. Streptococcus pneumoniae, group A and B beta-hemolytic streptococci, and viridans streptococci were inhibited by ≤0.12 μg/ml.

scholarly journals In Vitro Activities of LY333328 and Comparative Agents against Nosocomial Gram-Positive Pathogens Collected in a 1997 Global Surveillance Study

2000 ◽  
Vol 44 (5) ◽  
pp. 1370-1374 ◽  
Author(s):  
Michael L. Zeckel ◽  
David A. Preston ◽  
Bradley S. Allen
Keyword(s):  
Staphylococcus Aureus ◽  
Streptococcus Pneumoniae ◽  
Enterococcus Faecalis ◽  
Enterococcus Faecium ◽  
Vitro Activity ◽  
In Vitro Activity ◽  
Gram Positive ◽  
Vancomycin Resistant Enterococci ◽  
Vancomycin Resistant

ABSTRACT The in vitro activity of LY333328 was evaluated for 1,479 nosocomial gram-positive pathogens isolated in 12 countries during 1997. LY333328 MICs at which 90% of the isolates tested were inhibited for Enterococcus faecalis (n = 351),Enterococcus faecium (n = 100),Staphylococcus aureus (n = 593), coagulase-negative Staphylococcus species (n = 325), and Streptococcus pneumoniae(n = 110) were 1, 1, 2, 2, and 0.015 μg/ml, respectively. LY333328 demonstrated potent activity against isolates of vancomycin-resistant enterococci, oxacillin-resistant staphylococci, and penicillin-resistant pneumococci.

scholarly journals In Vitro Activity and Killing Effect of Uperin 3.6 against Gram-Positive Cocci Isolated from Immunocompromised Patients

2005 ◽  
Vol 49 (9) ◽  
pp. 3933-3936 ◽  
Author(s):  
Andrea Giacometti ◽  
Oscar Cirioni ◽  
Wojciech Kamysz ◽  
Carmela Silvestri ◽  
Alberto Licci ◽  
...  
Keyword(s):  
Vitro Activity ◽  
Immunocompromised Patients ◽  
In Vitro Activity ◽  
Gram Positive ◽  
Killing Effect ◽  
Methicillin Resistant ◽  
Vancomycin Resistant Enterococci ◽  
Vancomycin Resistant ◽  
Gram Positive Cocci

ABSTRACT The in vitro activity of uperin 3.6, alone or combined with six antibiotics, against gram-positive cocci, including Rhodococcus equi, methicillin-resistant staphylococci, and vancomycin-resistant enterococci, was investigated. All isolates were inhibited at concentrations of 1 to 16 mg/liter. Synergy was demonstrated when uperin 3.6 was combined with clarithromycin and doxycycline.

scholarly journals In Vitro and In Vivo Activities of DA-7867, a New Oxazolidinone, against Aerobic Gram-Positive Bacteria

2005 ◽  
Vol 49 (6) ◽  
pp. 2498-2500 ◽  
Author(s):  
Eun Jeong Yoon ◽  
Yeong Woo Jo ◽  
Sung Hak Choi ◽  
Tae Ho Lee ◽  
Jae Keol Rhee ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Streptococcus Pneumoniae ◽  
Gram Positive ◽  
Methicillin Resistant ◽  
Gram Positive Bacteria ◽  
Vancomycin Resistant Enterococci ◽  
Infection Models ◽  
Vancomycin Resistant

ABSTRACT In vitro and in vivo activities of DA-7867 were assessed against methicillin-resistant Staphylococcus aureus, vancomycin-resistant enterococci, and penicillin-resistant Streptococcus pneumoniae. All isolates were inhibited by DA-7867 at ≤0.78 μg/ml, a four-times-lower concentration than that of inhibition by linezolid. For murine infection models, DA-7867 also exhibited greater efficacy than linezolid against all isolates tested.

The Comparative in vitro Activity of Clinafloxacin and Other Antimicrobials against Vancomycin-Susceptible and Vancomycin-Resistant Enterococci

Chemotherapy ◽  
1996 ◽  
Vol 42 (4) ◽  
pp. 235-239 ◽  
Author(s):  
Gail S. Itokazu ◽  
Catherine Nathan ◽  
Radhika Hariharan ◽  
Jay R. Kostman ◽  
Sherwin A. Kabins ◽  
...  
Keyword(s):  
Vitro Activity ◽  
In Vitro Activity ◽  
Vancomycin Resistant Enterococci ◽  
Vancomycin Resistant

scholarly journals Comparative In Vitro Activities of Daptomycin and Vancomycin against Resistant Gram-Positive Pathogens

2000 ◽  
Vol 44 (12) ◽  
pp. 3447-3450 ◽  
Author(s):  
D. R. Snydman ◽  
N. V. Jacobus ◽  
L. A. McDermott ◽  
J. R. Lonks ◽  
J. M. Boyce
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Streptococcus Pneumoniae ◽  
Calcium Concentration ◽  
In Vitro Activity ◽  
Gram Positive ◽  
Methicillin Resistant ◽  
Vancomycin Resistant ◽  
Gram Positive Cocci

ABSTRACT The in vitro activity of daptomycin against 224 current gram-positive clinical isolates including vancomycin-resistantEnterococcus faecium (VREF), methicillin-resistantStaphylococcus aureus (MRSA), methicillin-resistantStaphylococcus spp. (MRSS), and penicillin-resistantStreptococcus pneumoniae (PRSP) was evaluated. The MICs at which 90% of isolates are inhibited for daptomycin and vancomycin, respectively, were as follows: MRSA, 1 and 2 μg/ml; MRSS, 1 and 4 μg/ml; PRSP, 1 and 0.5 μg/ml; and VREF, 2 and >64 μg/ml. Daptomycin was bactericidal against 82% of 17 VREF isolates. The antibacterial activity of daptomycin was strongly dependent on the calcium concentration of the medium. Daptomycin was active against all gram-positive cocci tested.

Sign in / Sign up

Export Citation Format

Share Document