Characterization of mutations in the rpoB gene that confer rifampin resistance in Staphylococcus aureus.

abstract：:In a dose-ranging study of amprenavir (formerly 141W94), an inhibitor of the protease enzyme of human immunodeficiency virus (HIV) type 1, single-dose and steady-state pharmacokinetic parameters were estimated from plasma samples collected on day 1 and during week 3, respectively. Amprenavir was administered on either...

journal_title：Antimicrobial agents and chemotherapy

authors： Sadler BM,Gillotin C,Lou Y,Stein DS

更新日期：2001-01-01 00:00:00

abstract：:The mechanism of colistin resistance (Col(r)) in Acinetobacter baumannii was studied by selecting in vitro Col(r) derivatives of the multidrug-resistant A. baumannii isolate AB0057 and the drug-susceptible strain ATCC 17978, using escalating concentrations of colistin in liquid culture. DNA sequencing identified mutat...

journal_title：Antimicrobial agents and chemotherapy

authors： Adams MD,Nickel GC,Bajaksouzian S,Lavender H,Murthy AR,Jacobs MR,Bonomo RA

更新日期：2009-09-01 00:00:00

abstract：:Foscarnet (phosphonoformic acid) is a pyrophosphate analog that inhibits the replication of human immunodeficiency virus type 1 (HIV-1) in vitro and in patients with AIDS. HIV-1 resistance to foscarnet has not been reported despite long-term foscarnet therapy of AIDS patients with cytomegalovirus disease. We therefore...

journal_title：Antimicrobial agents and chemotherapy

authors： Mellors JW,Bazmi HZ,Schinazi RF,Roy BM,Hsiou Y,Arnold E,Weir J,Mayers DL

更新日期：1995-05-01 00:00:00

abstract：:The minimal inhibitory concentrations of 45 antimicrobial agents were determined for 14 strains of Bacterium actinomycetem comitans (Actinobacillus actinomycetem-comitans). All the strains showed good susceptibility to tetracyclines and chloramphenicol, but not to lincomycins. Some strains were clearly resistant to pe...

journal_title：Antimicrobial agents and chemotherapy

authors： Höffler U,Niederau W,Pulverer G

更新日期：1980-06-01 00:00:00

abstract：:Candida lusitaniae is usually susceptible to echinocandins. Beta-1,3-glucan synthase encoded by FKS genes is the target of echinocandins. A few missense mutations in the C. lusitaniae FKS1 hot spot 1 (HS1) have been reported. We report here the rapid emergence of antifungal resistance in C. lusitaniae isolated during ...

journal_title：Antimicrobial agents and chemotherapy

authors： Asner SA,Giulieri S,Diezi M,Marchetti O,Sanglard D

更新日期：2015-12-01 00:00:00

abstract：:Single nucleotide polymorphisms (SNPs) involved in the development of resistance represent powerful markers for the rapid detection of first- and second-line resistance in clinical Mycobacterium tuberculosis complex (MTBC) isolates. However, the association between particular mutations and phenotypic resistance is not...

journal_title：Antimicrobial agents and chemotherapy

authors： Feuerriegel S,Köser C,Trübe L,Archer J,Rüsch Gerdes S,Richter E,Niemann S

更新日期：2010-11-01 00:00:00

abstract：:β-Lactam antibiotics that inhibit penicillin-binding proteins (PBPs) have been widely used in the treatment of bacterial infections. However, the molecular basis underlying the different inhibitory potencies of β-lactams against specific PBPs is not fully understood. Here, we present the crystal structures of penicill...

journal_title：Antimicrobial agents and chemotherapy

authors： Jeong JH,Cha HJ,Kim YG

更新日期：2018-08-27 00:00:00

abstract：:The carbapenem-hydrolyzing class D β-lactamase OXA-253 was identified in an Acinetobacter baumannii clinical isolate belonging to sequence type 113 (ST113) in Brazil. OXA-253 shares 93.8% amino acid identity with OXA-143. The blaOXA-253 gene is located on a ca. 20-kb plasmid. The genetic environment of the blaOXA-253 ...

journal_title：Antimicrobial agents and chemotherapy

authors： Girlich D,Damaceno QS,Oliveira AC,Nordmann P

更新日期：2014-05-01 00:00:00

abstract：:Polyclonal antibodies elicited by injection into rabbits of a nystatin-bovine serum albumin conjugate were reactive with both nystatin and amphotericin B. Upon labeling of polyene-treated Saccharomyces cerevisiae sterol auxotrophs grown on various sterols, nystatin reacted specifically with ergosterol, while amphoteri...

journal_title：Antimicrobial agents and chemotherapy

authors： Walker-Caprioglio HM,MacKenzie JM,Parks LW

更新日期：1989-12-01 00:00:00

abstract：:Sixty-seven patients were treated with moxalactam in a noncomparative trial of hospitalized patients; 32 had endometritis or chorioamnionitis, 12 had skin and soft tissue infections, 5 had osteomyelitis, 5 had pneumonia, 5 had urinary tract infections, 4 had arthritis, 2 had sepsis from an unknown source, 1 had endoca...

journal_title：Antimicrobial agents and chemotherapy

authors： Marier RL,Faro S,Sanders CV,Williams W,Derks F,Janney A,Aldridge K

更新日期：1982-04-01 00:00:00

abstract：:MprF is responsible for the lysinylation of phosphatidylglycerol (PG) to synthesize the positively charged phospholipid (PL) species, lysyl-PG (L-PG). It has been proposed that the single-nucleotide polymorphisms (SNPs) within the mprF open reading frame (ORF) are associated with a gain-in-function phenotype in terms ...

journal_title：Antimicrobial agents and chemotherapy

authors： Bayer AS,Mishra NN,Chen L,Kreiswirth BN,Rubio A,Yang SJ

更新日期：2015-08-01 00:00:00

abstract：:Pseudomonas aeruginosa 579 biofilms formed on dialysis membranes retarded piperacillin diffusion. Treatment of biofilms with 5.0 mM CaCl2.2H2O prevented diffusion. Biofilms permitted equilibration of [14C]glucose. Thin-layer chromatography of fluids distal to untreated (viable and nonviable) and viable Ca(2+)-treated ...

journal_title：Antimicrobial agents and chemotherapy

authors： Hoyle BD,Alcantara J,Costerton JW

更新日期：1992-09-01 00:00:00

abstract：:In patients with polytrauma or major surgery, severe bacterial infections leading to septic shock and multiorgan failure are still a major cause of death. Prevention of septic shock in patients at risk would be an alternative to treatment of patients with overt septic shock. We therefore conducted a trial with the mon...

journal_title：Antimicrobial agents and chemotherapy

authors： Passlick B,Labeta MO,Izbicki JR,Ostertag P,Löffler T,Siebeck M,Pichlmeier U,Schweiberer L,Ziegler-Heitbrock HW

更新日期：1995-11-01 00:00:00

abstract：:A combination of 3 g of ticarcillin and 200 mg of clavulanic acid was administered intravenously to six healthy male volunteers, after which the concentrations of these agents in serum and blister fluid were measured. The ratio of the two drugs in serum varied from 15:1 (ticarcillin-clavulanic acid) at the time of adm...

journal_title：Antimicrobial agents and chemotherapy

authors： Bennett S,Wise R,Weston D,Dent J

更新日期：1983-06-01 00:00:00

abstract：:The MICs of echinocandins against Candida isolates with fks mutations are higher than those for wild-type (WT) isolates. However, the MIC ranges for susceptible and mutant populations overlap or are poorly separated. It was recently reported that a greater separation could be achieved in the presence of serum. To more...

journal_title：Antimicrobial agents and chemotherapy

authors： Arendrup MC,Rodriguez-Tudela JL,Park S,Garcia-Effron G,Delmas G,Cuenca-Estrella M,Gomez-Lopez A,Perlin DS

更新日期：2011-04-01 00:00:00

abstract：:GV129606 is a new parenteral trinem antibiotic belonging to the beta-lactam class. It combines broad-spectrum activity (against gram-negative and -positive bacteria, aerobes and anaerobes), with high potency and resistance to beta-lactamases. Comparative in vitro and in vivo antibacterial activities were determined fo...

journal_title：Antimicrobial agents and chemotherapy

authors： Di Modugno E,Broggio R,Erbetti I,Lowther J

更新日期：1997-12-01 00:00:00

abstract：:Twenty-three isolates of group A streptococci (GAS) recovered from population-based invasive GAS surveillance in the United States were erythromycin resistant, inducibly clindamycin resistant, and lacked known macrolide resistance determinants. These 23 isolates, representing four different clones, contained a broad-h...

journal_title：Antimicrobial agents and chemotherapy

authors： Woodbury RL,Klammer KA,Xiong Y,Bailiff T,Glennen A,Bartkus JM,Lynfield R,Van Beneden C,Beall BW,Active Bacterial Core Surveillance Team.

更新日期：2008-03-01 00:00:00

abstract：:Cryptococcus gattii isolates from the Pacific Northwest have exhibited higher fluconazole MICs than isolates from other sites. The mechanism of fluconazole resistance in C. gattii is unknown. We sought to determine the role of the efflux pumps Mdr1 and Pdr11 in fluconazole susceptibility. Using biolistic transformatio...

journal_title：Antimicrobial agents and chemotherapy

authors： Yang ML,Uhrig J,Vu K,Singapuri A,Dennis M,Gelli A,Thompson GR 3rd

更新日期：2015-12-07 00:00:00

abstract：:The rabbit kidney cell line LLC-RK1 was tested for its ability to discriminate the toxicities of six cephalosporin antibiotics according to their in vivo nephrotoxic potentials in rabbits. With the exception of cephalothin, which was markedly toxic to kidney cells in vitro, a good correlation between in vitro toxicity...

journal_title：Antimicrobial agents and chemotherapy

authors： Williams PD,Laska DA,Tay LK,Hottendorf GH

更新日期：1988-03-01 00:00:00

abstract：:Fecal samples from Illinois farm animals and Montana range cattle were examined for the frequency of gram-negative enteric organisms resistant to oxytetracycline, dihydrostreptomycin, or ampicillin. The Illinois farm animals were continually fed rations containing various antibacterial drugs. The Montana range cattle ...

journal_title：Antimicrobial agents and chemotherapy

authors： Siegel D,Huber WG,Enloe F

更新日期：1974-12-01 00:00:00

abstract：:The response of tolerant Streptococcus sanguis and nontolerant Streptococcus mitis infections to penicillin therapy was compared in the rabbit model of endocarditis. The minimal inhibitory and bactericidal concentrations of penicillin were 0.1 and 0.1 mug/ml, respectively, for S. mitis and 0.05 and 6.2 mug/ml, respect...

journal_title：Antimicrobial agents and chemotherapy

authors： Lowy FD,Neuhaus EG,Chang DS,Steigbigel NH

更新日期：1983-01-01 00:00:00

abstract：:NK-2, a membrane-acting antimicrobial peptide, was derived from the cationic core region of porcine NK-lysin and consists of 27 amino acid residues. It adopts an amphipathic, alpha-helical secondary structure and has been shown to interact specifically with membranes of negatively charged lipids. We therefore investig...

journal_title：Antimicrobial agents and chemotherapy

authors： Andrä J,Koch MH,Bartels R,Brandenburg K

更新日期：2004-05-01 00:00:00

abstract：:Most methicillin-resistant Staphylococcus aureus (MRSA) isolates identified among blood isolates collected in Denmark between 1957 and 1970 belonged to either phage group III or the closely related 83A complex and had a PSTM antibiotype (resistance to penicillin [P], streptomycin [S], tetracycline [T], and methicillin...

journal_title：Antimicrobial agents and chemotherapy

authors： Gomes AR,Westh H,de Lencastre H

更新日期：2006-10-01 00:00:00

abstract：:Mupirocin is a topical antibiotic used for the treatment of skin infections and the eradication of methicillin-resistant Staphylococcus aureus carriage. It inhibits bacterial protein synthesis by interfering with isoleucyl-tRNA synthetase activity. High-level mupirocin resistance (MIC of ≥ 512 μg/ml) is mediated by th...

journal_title：Antimicrobial agents and chemotherapy

authors： Seah C,Alexander DC,Louie L,Simor A,Low DE,Longtin J,Melano RG

更新日期：2012-04-01 00:00:00

abstract：:Antibiotics are generally not effective against organisms in exopolysaccharide biofilms. A simple method of studying the effect of antibiotics on bacteria in established biofilms is reported. Escherichia coli ATCC 25922 cells grown overnight at 37 degrees C on Mueller-Hinton agar were suspended in buffer and dispensed...

journal_title：Antimicrobial agents and chemotherapy

authors： Prosser BL,Taylor D,Dix BA,Cleeland R

更新日期：1987-10-01 00:00:00

abstract：:The tuberactinomycin antibiotics are essential components in the drug arsenal against Mycobacterium tuberculosis infections and are specifically used for the treatment of multidrug-resistant tuberculosis. These antibiotics are also being investigated for their targeting of the catalytic RNAs involved in viral replicat...

journal_title：Antimicrobial agents and chemotherapy

authors： Thomas MG,Chan YA,Ozanick SG

更新日期：2003-09-01 00:00:00

abstract：:Olorofim is a novel antifungal drug in phase 2 trials. It has shown promising in vitro activity against various molds, except for Mucorales. Initially, we observed a broad range of EUCAST MICs for Aspergillus fumigatus Here, we explored the MIC variability in more detail and prospectively investigated the susceptibili...

journal_title：Antimicrobial agents and chemotherapy

authors： Astvad KMT,Jørgensen KM,Hare RK,Datcu R,Arendrup MC

更新日期：2020-12-16 00:00:00

abstract：:The efficacy of an itraconazole-cyclodextrin solution against Aspergillus fumigatus was assessed in an immunosuppressed, temporarily leukopenic rabbit model of invasive aspergillosis and compared with that of amphotericin B. Oral itraconazole solution at dosages of 20 and 40 mg/kg/day improved survival as compared wit...

journal_title：Antimicrobial agents and chemotherapy

authors： Patterson TF,Fothergill AW,Rinaldi MG

更新日期：1993-11-01 00:00:00

abstract：:The intrinsic mechanisms of resistance to beta-lactam antibiotics in Serratia marcescens IFO 12648 were investigated, comparing the action of benzylpenicillin, apalcillin, cefazolin, and ceftizoxime. The minimal inhibitory concentrations for this strain were 1,600, 3.13, 6,400, and 0.05 microgram/ml, respectively. The...

journal_title：Antimicrobial agents and chemotherapy

authors： Takata N,Suginaka H,Kotani S,Ogawa M,Kosaki G

更新日期：1981-03-01 00:00:00

abstract：:The beta-lactamases in 154 clinical Mycobacterium tuberculosis strains were studied. Susceptibilities to beta-lactam antibiotics, their combination with clavulanate (2:1), and two fluoroquinolones were determined in 24 M. tuberculosis strains susceptible to antimycobacterial drugs and in nine multiresistant strains. A...

journal_title：Antimicrobial agents and chemotherapy

authors： Segura C,Salvadó M,Collado I,Chaves J,Coira A

更新日期：1998-06-01 00:00:00