Roles of beta-lactamases and porins in activities of carbapenems and cephalosporins against Klebsiella pneumoniae.

abstract：:The 2-year follow-up results for a randomized placebo-controlled study of 47 patients with multidrug-resistant pulmonary tuberculosis treated with either the new diarylquinoline TMC207, recently renamed bedaquiline, or placebo, added to the first 8 weeks of a background regimen, are presented. Bedaquiline significantl...

journal_title：Antimicrobial agents and chemotherapy

authors： Diacon AH,Donald PR,Pym A,Grobusch M,Patientia RF,Mahanyele R,Bantubani N,Narasimooloo R,De Marez T,van Heeswijk R,Lounis N,Meyvisch P,Andries K,McNeeley DF

更新日期：2012-06-01 00:00:00

abstract：:The biosynthetic gene cluster of lankamycin (LM), a 14-member macrolide antibiotic, is encoded on the 210-kb linear plasmid pSLA2-L in Streptomyces rochei 7434AN4. LM contains a 3-hydroxy-2-butyl group at the C-13 position, which is different from an ethyl group in erythromycin. The following two possibilities could b...

journal_title：Antimicrobial agents and chemotherapy

authors： Arakawa K,Kodama K,Tatsuno S,Ide S,Kinashi H

更新日期：2006-06-01 00:00:00

abstract：:Enterobacteriaceae producing the Ambler class D OXA-48 carbapenemase, combined with additional resistance mechanisms, such as permeability defects or cocarriage of class A, B, or C β-lactamases, can become highly resistant to most β-lactams currently in use, including carbapenems. A total of 45,872 Enterobacteriaceae ...

journal_title：Antimicrobial agents and chemotherapy

authors： Kazmierczak KM,Bradford PA,Stone GG,de Jonge BLM,Sahm DF

更新日期：2018-11-26 00:00:00

abstract：:The prophylactic efficacy of 17C91, a carbamate prodrug of atovaquone (ATQ), was investigated in a severe combined immunodeficient mouse model of Pneumocystis carinii pneumonia (PCP). At an oral dosage equivalent to 100 mg of ATQ per kg of body weight per day, 17C91 protected 9 of 10 mice from PCP and had a prophylact...

journal_title：Antimicrobial agents and chemotherapy

authors： Comley JC,Yeates CL,Frend TJ

更新日期：1995-10-01 00:00:00

abstract：:The efficacy of atovaquone alone or combined with pyrimethamine, sulfadiazine, clarithromycin, and minocycline was examined in vitro and in a murine model of acute toxoplasmosis. In vitro studies were performed with MRC5 fibroblast tissue cultures, with quantification of Toxoplasma growth by an enzyme-linked immunosor...

journal_title：Antimicrobial agents and chemotherapy

authors： Romand S,Pudney M,Derouin F

更新日期：1993-11-01 00:00:00

abstract：:Ga(3+) is a semimetal element that competes for the iron-binding sites of transporters and enzymes. We investigated the activity of gallium maltolate (GaM), an organic gallium salt with high solubility, against laboratory and clinical strains of methicillin-susceptible Staphylococcus aureus (MSSA), methicillin-resista...

journal_title：Antimicrobial agents and chemotherapy

authors： Baldoni D,Steinhuber A,Zimmerli W,Trampuz A

更新日期：2010-01-01 00:00:00

abstract：:The in vitro activity of PD 127,391, a dihalogenated quinolone, was compared with those of ofloxacin, ciprofloxacin, nalidixic acid, gentamicin, and cefuroxime against 525 recent isolates and well-characterized antimicrobial agent-resistant strains. The MICs of PD 127,391 against 90% of members of the family Enterobac...

journal_title：Antimicrobial agents and chemotherapy

authors： Wise R,Ashby JP,Andrews JM

更新日期：1988-08-01 00:00:00

abstract：:A micellar formulation of amphotericin B (AmB) solubilized with poloxamer 188 was evaluated against an AmB Leishmania donovani-resistant line. A concave isobologram showed a synergistic effect of this association against promastigotes. This result was confirmed with amastigotes since the 50% effective concentration of...

journal_title：Antimicrobial agents and chemotherapy

authors： Espuelas S,Legrand P,Loiseau PM,Bories C,Barratt G,Irache JM

更新日期：2000-08-01 00:00:00

abstract：:Recent studies using laboratory clones have demonstrated that several antiretroviral protease inhibitors (PIs) inhibit the growth of Plasmodium falciparum at concentrations that may be of clinical significance, especially during human immunodeficiency virus type 1 (HIV-1) and malaria coinfection. Using clinical isolat...

journal_title：Antimicrobial agents and chemotherapy

authors： Lek-Uthai U,Suwanarusk R,Ruengweerayut R,Skinner-Adams TS,Nosten F,Gardiner DL,Boonma P,Piera KA,Andrews KT,Machunter B,McCarthy JS,Anstey NM,Price RN,Russell B

更新日期：2008-07-01 00:00:00

abstract：:N-Formimidoyl thienamycin (MK0787) was active against beta-lactamase-producing strains and was an effective inhibitor of beta-lactamases extracted and purified from these strains except for plasmid-mediated penicillinase type IV. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Toda M,Sato K,Nakazawa H,Inoue M,Mitsuhashi S

更新日期：1980-11-01 00:00:00

abstract：:BAL fluid samples from critically ill patients shared a rate of 29% false-positive galactomannan results. We aimed to determine whether Candida species abundance in BAL fluid causes galactomannan (GM) positivity. A total of 89 Candida culture-positive BAL fluid samples from patients without suspicion of invasive asper...

journal_title：Antimicrobial agents and chemotherapy

authors： Aigner M,Wanner M,Kreidl P,Lass-Flörl C,Lackner M

更新日期：2019-05-24 00:00:00

abstract：:For treatment of mild to moderate Clostridium difficile-associated disease (CDAD), oral metronidazole has been recommended as the preferred agent, in part due to concern that vancomycin may be more likely to promote colonization by vancomycin-resistant enterococci (VRE). We performed a prospective observational study ...

journal_title：Antimicrobial agents and chemotherapy

authors： Al-Nassir WN,Sethi AK,Li Y,Pultz MJ,Riggs MM,Donskey CJ

更新日期：2008-07-01 00:00:00

abstract：:One hundred clinical isolates resistant to ceftazidime and/or cefotaxime were examined for susceptibility to cefepime. The most frequently encountered ceftazidime-cefotaxime-resistant strains belonged to the genera Enterobacter, Pseudomonas, and Citrobacter. Among these strains, 92% were resistant to cefoperazone, 91%...

journal_title：Antimicrobial agents and chemotherapy

authors： Fung-Tomc J,Dougherty TJ,DeOrio FJ,Simich-Jacobson V,Kessler RE

更新日期：1989-04-01 00:00:00

abstract：:The in vitro susceptibilities of 112 clinical isolates of Haemophilus ducreyi to six antimicrobial agents were determined. These isolates were obtained in Kigali, Rwanda, during three studies on genital ulcer disease performed in 1986 (18 isolates), 1988 (23 isolates), and 1991 (71 isolates). All H. ducreyi isolates w...

journal_title：Antimicrobial agents and chemotherapy

authors： Van Dyck E,Bogaerts J,Smet H,Tello WM,Mukantabana V,Piot P

更新日期：1994-07-01 00:00:00

abstract：:The in vitro activities of two investigational quinolones, sparfloxacin (previously designated AT 4140) and PD 127391, were determined for 30 strains each of Mycoplasma pneumoniae, Mycoplasma hominis, and Ureaplasma urealyticum and compared with those of ciprofloxacin, tetracycline, clindamycin, and erythromycin. Eryt...

journal_title：Antimicrobial agents and chemotherapy

authors： Waites KB,Duffy LB,Schmid T,Crabb D,Pate MS,Cassell GH

更新日期：1991-06-01 00:00:00

abstract：:While it is well-known that adjunctive corticosteroid use improves the outcome of moderate-to-severe Pneumocystis jirovecii pneumonia (PcP) in patients with human immunodeficiency virus (HIV), there are limited data on its efficacy in non-HIV-infected patients with PcP. Patients undergoing fiber-optic bronchoscopy wit...

journal_title：Antimicrobial agents and chemotherapy

authors： Moon SM,Kim T,Sung H,Kim MN,Kim SH,Choi SH,Jeong JY,Woo JH,Kim YS,Lee SO

更新日期：2011-10-01 00:00:00

abstract：:During its intraerythrocytic phase, the most lethal human malarial parasite, Plasmodium falciparum, digests host cell hemoglobin as a source of some of the amino acids required for its own protein synthesis. A number of parasite endopeptidases (including plasmepsins and falcipains) process the globin into small peptid...

journal_title：Antimicrobial agents and chemotherapy

authors： Cunningham E,Drag M,Kafarski P,Bell A

更新日期：2008-09-01 00:00:00

abstract：:Carbapenem-resistant Acinetobacter baumannii is a major source of nosocomial infections worldwide and is mainly associated with the acquisition of OXA-type carbapenemases and, to a lesser extent, metallo-β-lactamases (MBLs). In this study, 82 nonepidemiologically related Acinetobacter strains carrying different types ...

journal_title：Antimicrobial agents and chemotherapy

authors： Vergara A,Zboromyrska Y,Mosqueda N,Morosini MI,García-Fernández S,Roca I,Cantón R,Marco F,Vila J

更新日期：2014-12-01 00:00:00

abstract：:Polymyxins are often the only option to treat acquired multidrug-resistant Pseudomonas aeruginosa. Polymyxin susceptibility in P. aeruginosa PAO1 is associated with the lipopolysaccharide structure that is determined by arnBCADTEF and modulated by phoPQ and pmrAB. We examined five clonally unrelated clinical isolates ...

journal_title：Antimicrobial agents and chemotherapy

authors： Barrow K,Kwon DH

更新日期：2009-12-01 00:00:00

abstract：:Combination therapy using drugs with different mechanisms of action is the current state of the art in antimalarial treatment. However, except for artemisinin-based combination therapies, only a few other combinations are now available. Increasing concern regarding the emergence and spread of artemisinin resistance in...

journal_title：Antimicrobial agents and chemotherapy

authors： Bei ZC,Li GF,Zhao JH,Zhang M,Ji XG,Wang JY

更新日期：2020-10-20 00:00:00

abstract：:Gatifloxacin is an 8-methoxy fluoroquinolone effective against a broad spectrum of pathogens common in pediatric infections. The safety and pharmacokinetics of a single dose of gatifloxacin were studied in pediatric patients from 6 months to 16 years of age. Seventy-six pediatric patients (average age, 6.7 +/- 5.0 yea...

journal_title：Antimicrobial agents and chemotherapy

authors： Capparelli EV,Reed MD,Bradley JS,Kearns GL,Jacobs RF,Damle BD,Blumer JL,Grasela DM

更新日期：2005-03-01 00:00:00

abstract：:Spontaneous mutants of susceptible clinical and laboratory isolates of Streptococcus pneumoniae exhibiting reduced susceptibility to evernimicin (SCH27899; MIC, 0.5 to 4.0 mg/liter) were selected on plates containing evernimicin. Four isolates that did not harbor mutations in rplP (which encodes ribosomal protein L16)...

journal_title：Antimicrobial agents and chemotherapy

authors： Adrian PV,Mendrick C,Loebenberg D,McNicholas P,Shaw KJ,Klugman KP,Hare RS,Black TA

更新日期：2000-11-01 00:00:00

abstract：:The effects of probenecid on the pharmacokinetics and renal clearance of acyclovir were studied in humans. Acyclovir (5 mg/kg) was given as a 1-h infusion to three volunteers with normal renal function both before and after oral administration of probenecid (1 g). The kinetics were well described by a two-compartment ...

journal_title：Antimicrobial agents and chemotherapy

authors： Laskin OL,de Miranda P,King DH,Page DA,Longstreth JA,Rocco L,Lietman PS

更新日期：1982-05-01 00:00:00

abstract：:Morganocin 174-induced lethality was characterized by one-hit kinetics. Although it induced simultaneous inhibition of deoxyribonucleic acid, ribonucleic acid, and protein syntheses, the most striking effect of morganocin was a rapid reduction of intracellular adenosine 5'-triphosphate to less than 10% of the initial ...

journal_title：Antimicrobial agents and chemotherapy

authors： Williams JA,Krizsanovich-Williams K

更新日期：1977-09-01 00:00:00

abstract：:The spectrum of activity of levofloxacin was initially determined against 29 strains belonging to 16 species of atypical mycobacteria by measuring radiometric MICs. Levofloxacin MICs were 1 to 2 dilutions lower compared with those obtained for ofloxacin and 8 to 64 dilutions lower compared with those obtained for its ...

journal_title：Antimicrobial agents and chemotherapy

authors： Rastogi N,Goh KS,Bryskier A,Devallois A

更新日期：1996-11-01 00:00:00

abstract：:The effect of N-alkyl derivatives of saturated heterocyclic amine oxides on the growth and metabolism of microorganisms has been studied. 4-Dodecylmorpholine-N-oxide inhibited the differentiation and growth of Bacillus cereus, of different species of filamentous fungi, and of the yeast Saccharomyces cerevisiae. For ve...

journal_title：Antimicrobial agents and chemotherapy

authors： Subík J,Takácsová G,Psenák M,Devínsky F

更新日期：1977-08-01 00:00:00

abstract：:Despite the marketing of a series of new antibiotics for antibiotic-resistant gram-positive bacteria, no new agents for multiple-antibiotic-resistant gram-negative infections will be available for quite some time. Clinicians will need to find more effective ways to utilize available agents. Colistin is an older but no...

journal_title：Antimicrobial agents and chemotherapy

authors： Gunderson BW,Ibrahim KH,Hovde LB,Fromm TL,Reed MD,Rotschafer JC

更新日期：2003-03-01 00:00:00

abstract：:Control of membrane permeability is a key step in regulating the intracellular concentration of antibiotics. Efflux pumps confer innate resistance to a wide range of toxic compounds such as antibiotics, dyes, detergents, and disinfectants in members of the Enterobacteriaceae. The AcrAB-TolC efflux pump is involved in ...

journal_title：Antimicrobial agents and chemotherapy

authors： Pérez A,Poza M,Aranda J,Latasa C,Medrano FJ,Tomás M,Romero A,Lasa I,Bou G

更新日期：2012-12-01 00:00:00

abstract：:The CcrA beta-lactamase from Bacteroides fragilis TAL3636 was cloned into Escherichia coli and purified from inclusion bodies. This group 3 metalloenzyme hydrolyzed most beta-lactam antibiotics, including cephamycins and carbapenems. Following inhibition by chelators, enzyme activity was recovered with the cations Zn2...

journal_title：Antimicrobial agents and chemotherapy

authors： Yang Y,Rasmussen BA,Bush K

更新日期：1992-05-01 00:00:00

abstract：UNLABELLED:Peramivir is an intravenous anti-influenza agent that inhibits viral growth by selectively inhibiting neuraminidase in human influenza A and B viruses. To characterize its pharmacokinetics, a population pharmacokinetic analysis of peramivir was performed using 3,199 plasma concentration data samples from 332...

journal_title：Antimicrobial agents and chemotherapy

authors： Matsuo Y,Ishibashi T,Hollister AS,Wajima T

更新日期：2015-11-01 00:00:00