Weak mutators can drive the evolution of fluoroquinolone resistance in Escherichia coli.

abstract：:Carbapenem-resistant Enterobacteriaceae carrying New Delhi metallo-β-lactamase 1 (NDM-1) have rarely been reported in Latin America. We report of an outbreak caused by a blaNDM-1-harboring plasmid spread through different bacterial species, including Escherichia coli (ST617) and Enterobacter cloacae (ST182) isolates f...

journal_title：Antimicrobial agents and chemotherapy

authors： Torres-González P,Bobadilla-Del Valle M,Tovar-Calderón E,Leal-Vega F,Hernández-Cruz A,Martínez-Gamboa A,Niembro-Ortega MD,Sifuentes-Osornio J,Ponce-de-León A

更新日期：2015-11-01 00:00:00

abstract：:The inhibition of Saccharomyces cerevisiae growth by amphotericin B and rifampin was studied. Rifampin alone had no effect on growth or macromolecular syntheses. Lethal amounts of amphotericin B produced a late inhibition of ribonucleic acid (RNA) synthesis simultaneous with the arrest of growth and protein synthesis....

journal_title：Antimicrobial agents and chemotherapy

authors： Battaner E,Kumar BV

更新日期：1974-04-01 00:00:00

abstract：:Infection with multiple ganciclovir-resistant human cytomegalovirus mutants, containing different substitutions and deletions in the UL97 gene, was found in a patient with severe combined immunodeficiency (SCID) within 3 weeks of ganciclovir therapy. A novel 11-codon deletion at positions 590 to 600 was identified. Th...

journal_title：Antimicrobial agents and chemotherapy

authors： Wolf DG,Yaniv I,Ashkenazi S,Honigman A

更新日期：2001-02-01 00:00:00

abstract：:We investigated the efficacies of cefotaxime (CTX) and amoxicillin (AMX)-clavulanate (CLA) (AMC) against extended-spectrum-β-lactamase (ESBL)-producing Escherichia coli in vitro and in a murine model of urinary tract infection (UTI). MICs, the checkerboard dilution method, and time-kill curves were used to explore the...

journal_title：Antimicrobial agents and chemotherapy

authors： Rossi B,Soubirou JF,Chau F,Massias L,Dion S,Lepeule R,Fantin B,Lefort A

更新日期：2015-11-02 00:00:00

abstract：:Three percent 5-ethyl-2'-deoxyuridine (EdU) in an aqueous cream base was compared with 5% acyclovir (ACV) in polyethylene glycol ointment and 3% EdU in 95% dimethyl sulfoxide (DMSO) for efficacy in the topical treatment of an experimental dorsal cutaneous herpes simplex virus type 1 infection in guinea pigs. Topical A...

journal_title：Antimicrobial agents and chemotherapy

authors： Spruance SL,Freeman DJ,Sheth NV

更新日期：1985-07-01 00:00:00

abstract：:Echinocandins are a preferred therapy for invasive candidiasis due to their potency and broad spectrum. Resistance, especially in Candida glabrata, is an emerging threat to their use. Pharmacodynamic (PD) studies examining reduced susceptibility secondary to fks mutations in C. glabrata are lacking. The current study ...

journal_title：Antimicrobial agents and chemotherapy

authors： Lepak A,Castanheira M,Diekema D,Pfaller M,Andes D

更新日期：2012-11-01 00:00:00

abstract：:Sch 21420 is a new aminoglycoside synthesized from gentamicin B. Susceptibility tests with Sch 21420, amikacin, gentamicin, netilmicin, sisomicin, and tobramycin were performed on a variety of bacterial species including 44 with known mechanisms of resistance to aminoglycosides. Sch 21420 and amikacin had similar effe...

journal_title：Antimicrobial agents and chemotherapy

authors： Thornsberry C,Barry AL,Jones RN,Baker CN,Badal RE,Packer RR

更新日期：1980-08-01 00:00:00

abstract：:The in vitro activity of tosufloxacin (A-61827; T-3262) against 15 clinical isolates of Chlamydia trachomatis and 31 recent clinical isolates of Neisseria gonorrhoeae, including 15 spectinomycin-resistant N. gonorrhoeae and 16 penicillinase-producing N. gonorrhoeae, was determined. Tosufloxacin was compared with doxyc...

journal_title：Antimicrobial agents and chemotherapy

authors： Segreti J,Hirsch DJ,Harris AA,Kapell KS,Orbach H,Kessler HA

更新日期：1990-06-01 00:00:00

abstract：:Artemisinins are peroxidic antimalarial drugs known to be very potent but highly chemically unstable; they degrade in the presence of ferrous iron, Fe(II)-heme, or biological reductants. Less documented is how this translates into chemical stability and antimalarial activity across a range of conditions applying to in...

journal_title：Antimicrobial agents and chemotherapy

authors： Parapini S,Olliaro P,Navaratnam V,Taramelli D,Basilico N

更新日期：2015-07-01 00:00:00

abstract：:The emergence of clinical enterococcal isolates resistant to both ampicillin and vancomycin is a cause of great concern, as there are few therapeutic alternatives for treatment of infections caused by such organisms. We evaluated the effects of the combination of ampicillin with vancomycin against vancomycin-resistant...

journal_title：Antimicrobial agents and chemotherapy

authors： Cercenado E,Eliopoulos GM,Wennersten CB,Moellering RC Jr

更新日期：1992-10-01 00:00:00

abstract：:Isoniazid (INH) remains the most safe and cost-effective drug for the treatment and prophylaxis of tuberculosis. The use of INH has increased over the past years, largely as a result of the coepidemic of human immunodeficiency virus infection. It is frequently given chronically to critically ill patients who are copre...

journal_title：Antimicrobial agents and chemotherapy

authors： Desta Z,Soukhova NV,Flockhart DA

更新日期：2001-02-01 00:00:00

abstract：:An in vitro model of monocyte-derived dendritic cells (MO-DC) and CD4(+) T cells, representing the primary targets of sexual human immunodeficiency virus (HIV) transmission, was used to evaluate the antiviral and immune suppressive activity of new classes of nonnucleoside reverse transcriptase inhibitors, diaryltriazi...

journal_title：Antimicrobial agents and chemotherapy

authors： Van Herrewege Y,Vanham G,Michiels J,Fransen K,Kestens L,Andries K,Janssen P,Lewi P

更新日期：2004-10-01 00:00:00

abstract：:Faldaprevir is a potent hepatitis C virus (HCV) NS3/4A protease inhibitor with negligible urinary excretion. We assessed the pharmacokinetics and safety of a single oral dose of faldaprevir (480 mg) in 32 HCV-negative subjects with renal impairment or normal renal function. Compared with subjects with normal renal fun...

journal_title：Antimicrobial agents and chemotherapy

authors： Huang F,Moschetti V,Lang B,Halabi A,Petersen-Sylla M,Yong CL,Elgadi M

更新日期：2015-01-01 00:00:00

abstract：:We have developed a rapid, continuous method for monitoring the effectiveness of several antibacterial agents in real time, noninvasively, by using a recently described mouse model of chronic biofilm infection (J. L. Kadurugamuwa et al., Infect. Immun. 71:882-890, 2003), which relies on biophotonic imaging of biolumin...

journal_title：Antimicrobial agents and chemotherapy

authors： Kadurugamuwa JL,Sin LV,Yu J,Francis KP,Kimura R,Purchio T,Contag PR

更新日期：2003-10-01 00:00:00

abstract：:Despite the documented benefit of voriconazole therapeutic drug monitoring, nonlinear pharmacokinetics make the timing of steady-state trough sampling and appropriate dose adjustments unpredictable by conventional methods. We developed a nonparametric population model with data from 141 previously richly sampled child...

journal_title：Antimicrobial agents and chemotherapy

authors： Neely M,Margol A,Fu X,van Guilder M,Bayard D,Schumitzky A,Orbach R,Liu S,Louie S,Hope W

更新日期：2015-01-01 00:00:00

abstract：:Fortimicins are bicyclic aminoglycoside antibiotics that contain a fortamine moiety instead of the deoxystreptamine found in other aminoglysides. Fortimicin A had a bactericidal effect on Escherichia coli and Staphylococcus epidermidis and was found to inhibit protein synthesis in vivo. In vitro, fortimicin A inhibite...

journal_title：Antimicrobial agents and chemotherapy

authors： Moreau N,Jaxel C,Le Goffic F

更新日期：1984-12-01 00:00:00

abstract：:The pharmacokinetics of a single 1-g intravenous dose of mezlocillin were examined in six functionally anephric patients undergoing hemodialysis. Hemodialysis clearance calculated by plasma extraction ratios across the dialyzer membrane and by dialysis fluid agree well, averaging 26 and 32 ml/min. Dialyzer extraction ...

journal_title：Antimicrobial agents and chemotherapy

authors： Janicke DM,Mangione A,Schultz RW,Jusko WJ

更新日期：1981-11-01 00:00:00

abstract：:The pathogenic yeast Candida albicans can exist in multiple morphological states, including budded, pseudohyphal, and true hyphal forms. The ability to convert between the budded and hyphal forms, termed the budded-to-hyphal-form transition, is important for virulence and is regulated by multiple environmental and cel...

journal_title：Antimicrobial agents and chemotherapy

authors： Toenjes KA,Munsee SM,Ibrahim AS,Jeffrey R,Edwards JE Jr,Johnson DI

更新日期：2005-03-01 00:00:00

abstract：:ST-246, a novel compound that inhibits egress of orthopoxvirus from infected cells, is being evaluated as a treatment for pathogenic orthopoxvirus infections in humans. This phase I, double-blind, randomized, placebo-controlled, escalating multiple-dose study was conducted to determine the safety, tolerability, and ph...

journal_title：Antimicrobial agents and chemotherapy

authors： Jordan R,Chinsangaram J,Bolken TC,Tyavanagimatt SR,Tien D,Jones KF,Frimm A,Corrado ML,Pickens M,Landis P,Clarke J,Marbury TC,Hruby DE

更新日期：2010-06-01 00:00:00

abstract：:The in vitro susceptibility of Brucella melitensis was examined vis-a-vis the clinical outcome in 75 patients with brucellosis. The initial MICs for Brucella isolates from patients who relapsed and from those who did not were similar. Furthermore, the MICs for isolates from patients whose infections relapsed were no d...

journal_title：Antimicrobial agents and chemotherapy

authors： Ariza J,Bosch J,Gudiol F,Liñares J,Viladrich PF,Martín R

更新日期：1986-12-01 00:00:00

abstract：:Doxycycline is an alternative antibiotic drug for the treatment of syphilis, but data on its efficacy, especially data on its efficacy against late latent syphilis, are limited. A retrospective study was conducted to evaluate the effectiveness of doxycycline for the treatment of patients with different stages of syphi...

journal_title：Antimicrobial agents and chemotherapy

authors： Dai T,Qu R,Liu J,Zhou P,Wang Q

更新日期：2016-12-27 00:00:00

abstract：:Genotypes of samples from protease inhibitor-naïve patients in Frankfurt's HIV Cohort were analyzed with five tipranavir resistance prediction algorithms. Mean scores were higher in non-B than in B subtypes. The proportion of non-B subtypes increased with increasing scores, except in weighted algorithms. Virtual and i...

journal_title：Antimicrobial agents and chemotherapy

authors： Stürmer M,Stephan C,Gute P,Knecht G,Bickel M,Brodt HR,Doerr HW,Gürtler L,Lecocq P,van Houtte M

更新日期：2011-11-01 00:00:00

abstract：:Metronidazole (MDZ) and related 5-nitroimidazoles are the recommended drugs for treatment of trichomoniasis, a sexually transmitted disease caused by the protozoan parasite Trichomonas vaginalis. However, novel treatment options are needed, as recent reports have claimed resistance to these drugs in T. vaginalis isola...

journal_title：Antimicrobial agents and chemotherapy

authors： Mallo N,Lamas J,Leiro JM

更新日期：2013-06-01 00:00:00

abstract：:The in vitro activity of rosamicin and erythromycin was compared at various pH values against 311 strains of bacteria representing common urinary tract pathogens. Alkalinization of the media consistently and significantly increased the antibacterial activity of rosamicin against all of the organisms tested. This was a...

journal_title：Antimicrobial agents and chemotherapy

authors： Eickhoff TC,Ehret JM

更新日期：1979-07-01 00:00:00

abstract：:Resistance of Streptococcus pneumoniae to fluoroquinolones is caused predominantly by amino acid substitutions at positions Ser79 of ParC and Ser81 of GyrA to either Phe or Tyr encoded in the quinolone resistance-determining regions of the parC topoisomerase IV and gyrA DNA gyrase genes. Analysis of highly resistant c...

journal_title：Antimicrobial agents and chemotherapy

authors： Korzheva N,Davies TA,Goldschmidt R

更新日期：2005-06-01 00:00:00

abstract：:The 47-kbp plasmid pGFT1 from Salmonella enterica subsp. enterica serovar Dublin mediated tetracycline resistance via a tet(A) gene located on an integrated copy of a Tn1721-analogous transposon. The integration site of the transposon was located within the reading frame of a fip gene. Plasmid pGFT1 was shown to be co...

journal_title：Antimicrobial agents and chemotherapy

authors： Frech G,Schwarz S

更新日期：1998-05-01 00:00:00

abstract：:Rezafungin is a new long-acting echinocandin currently in phase 3 development. Epidemiological cutoff values are necessary for breakpoint setting but have not been established due to unexplained interlaboratory MIC variations observed in a prior multicenter study. Here we investigated if the choice of microtiter plate...

journal_title：Antimicrobial agents and chemotherapy

authors： Arendrup MC,Jørgensen KM,Hare RK,Cuenca-Estrella M,Zaragoza O

更新日期：2019-08-23 00:00:00

abstract：:Various Pseudomonas aeruginosa PAO1 NfxB mutants were isolated on agar plates containing cefpirome and ofloxacin. They were classified into type A and type B, based on the degrees of changes in their susceptibilities. Type A mutants were four to eight times more resistant to ofloxacin, erythromycin, and new zwitterion...

journal_title：Antimicrobial agents and chemotherapy

authors： Masuda N,Gotoh N,Ohya S,Nishino T

更新日期：1996-04-01 00:00:00

abstract：:Antagonism, determined by isobolograms constructed from data from combinations of ampicillin and chloramphenicol at or below the minimal inhibitory or bactericidal concentrations, was observed against 13 clinical isolates of meningococcus and against one isolate of pneumococcus. Synergy occurred against six strains of...

journal_title：Antimicrobial agents and chemotherapy

authors： Feldman WE,Zweighaft T

更新日期：1979-02-01 00:00:00

abstract：:Growth of Mycoplasma pneumoniae was completely prevented by 0.06 mug of actinomycin D/ml, and 0.00375 mug/ml caused 90% inhibition. It thus appears that M. pneumoniae is more susceptible to actinomycin D than previously reported. Low concentrations (0.019 mug/ml) of the antibiotic primarily inhibited ribonucleic acid ...

journal_title：Antimicrobial agents and chemotherapy

authors： Fletcher RD,Jayavasu C,Yoo S,Albertson JN

更新日期：1973-09-01 00:00:00