Virulence factors of Escherichia coli isolates that produce CTX-M-type extended-spectrum beta-lactamases.

abstract：:In this study, two identical copies of a 23S-5S gene cluster, which are separately situated within the Helicobacter pylori UA802 chromosome, were cloned and sequenced. Comparison of the DNA sequence of the H. pylori 23S rRNA gene with known sequences of other bacterial 23S rRNA genes indicated that the H. pylori UA802...

journal_title：Antimicrobial agents and chemotherapy

authors： Taylor DE,Ge Z,Purych D,Lo T,Hiratsuka K

更新日期：1997-12-01 00:00:00

abstract：:Mongrel dogs with ascites created by inferior vena cava ligation were given cephalothin, cephaloridine, cefazolin, and cefamandole to evaluate the effect of protein binding and serum pharmacokinetics on the distribution of cephalosporins into ascitic fluid. Antibiotics were given intramuscularly (15 mg/kg) every 4 h f...

journal_title：Antimicrobial agents and chemotherapy

authors： Gerding DN,Peterson LR,Legler DC,Hall WH,Schierl EA

更新日期：1978-08-01 00:00:00

abstract：:Azoles are widely used antifungals; however, their efficacy is compromised by fungistatic activity and selection of resistant strains during treatment. Recent studies demonstrated roles for the protein kinase C and calcium signaling pathways in modulating azole activity. Here we explored a role for the signaling pathw...

journal_title：Antimicrobial agents and chemotherapy

authors： Jain P,Akula I,Edlind T

更新日期：2003-10-01 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：:The recent availability of CCR5 antagonists as anti-human immunodeficiency virus (anti-HIV) therapeutics has highlighted the need to accurately identify CXCR4-using variants in patient samples when use of this new drug class is considered. The Trofile assay (Monogram Biosciences) has become the method that is the most...

journal_title：Antimicrobial agents and chemotherapy

authors： Coakley E,Reeves JD,Huang W,Mangas-Ruiz M,Maurer I,Harskamp AM,Gupta S,Lie Y,Petropoulos CJ,Schuitemaker H,van 't Wout AB

更新日期：2009-11-01 00:00:00

abstract：:Intravenous ampicillin-sulbactam is effective in the treatment of various infections in adults, but little is known about the pharmacokinetics (PK) of ampicillin-sulbactam in children. The objective of this study was to determine the PK of ampicillin and sulbactam in pediatric patients with intra-abdominal infection, ...

journal_title：Antimicrobial agents and chemotherapy

authors： Nahata MC,Vashi VI,Swanson RN,Messig MA,Chung M

更新日期：1999-05-01 00:00:00

abstract：:Pseudomonas aeruginosa strains that produce metallo-beta-lactamases (MBLs) are becoming increasingly prevalent. We evaluated the epidemiological and microbiological characteristics of monomicrobial bloodstream infections caused by MBL-producing P. aeruginosa isolates, as well as the clinical outcomes in patients with ...

journal_title：Antimicrobial agents and chemotherapy

authors： Marra AR,Pereira CA,Gales AC,Menezes LC,Cal RG,de Souza JM,Edmond MB,Faro C,Wey SB

更新日期：2006-01-01 00:00:00

abstract：:The elevated expression of the norA gene is responsible for efflux-mediated resistance to quinolones in Staphylococcus aureus (E.Y.W. Ng, M. Trucksis, and D.C. Hooper, Antimicrob. Agents Chemother. 38:1345-1355, 1994). For S. aureus transformed with a plasmid containing the cloned norA gene, SA113(pTUS20) (H. Yoshida,...

journal_title：Antimicrobial agents and chemotherapy

authors： Takenouchi T,Tabata F,Iwata Y,Hanzawa H,Sugawara M,Ohya S

更新日期：1996-08-01 00:00:00

abstract：:Biofilm formation mediated by polysaccharide intercellular adhesin (PIA) is the major virulence factor of Staphylococcus epidermidis and is often associated with methicillin resistance. Transposon Tn917 insertions leading to a biofilm-negative phenotype in the biofilm-producing S. epidermidis strain 1457 (mecA-negativ...

journal_title：Antimicrobial agents and chemotherapy

authors： Mack D,Sabottke A,Dobinsky S,Rohde H,Horstkotte MA,Knobloch JK

更新日期：2002-01-01 00:00:00

abstract：:Pseudomonas aeruginosa exploits intrinsic and acquired resistance mechanisms to resist almost every antibiotic used in chemotherapy. Antimicrobial resistance in P. aeruginosa isolates recovered from cystic fibrosis (CF) patients is further enhanced by the occurrence of hypermutator strains, a hallmark of chronic infec...

journal_title：Antimicrobial agents and chemotherapy

authors： Colque CA,Albarracín Orio AG,Feliziani S,Marvig RL,Tobares AR,Johansen HK,Molin S,Smania AM

更新日期：2020-04-21 00:00:00

abstract：:Amoxicillin was studied in normal subjects after intravenous, oral, and intramuscular administration of 250-, 500-, and 1,000-mg doses. Serum drug levels were analyzed using a two-compartment open model, as well as area under the curve (AUC) and urinary recovery. The variations of these pharmacokinetic parameters were...

journal_title：Antimicrobial agents and chemotherapy

authors： Spyker DA,Rugloski RJ,Vann RL,O'Brien WM

更新日期：1977-01-01 00:00:00

abstract：:Expression of high-level beta-lactam resistance is known to be thermosensitive in many methicillin-resistant Staphylococcus aureus (MRSA) strains, including strain COL, in which the high methicillin MIC for cultures grown at 37 degrees C (800 microg/ml) was reduced to 12 microg/ml at 42 degrees C. COL grew faster at 4...

journal_title：Antimicrobial agents and chemotherapy

authors： Sieradzki K,Chung M,Tomasz A

更新日期：2008-02-01 00:00:00

abstract：:Tedizolid and linezolid in vitro activities against 3,032 Gram-positive pathogens collected in Asia-Pacific, Eastern European, and Latin American medical centers during 2014 were assessed. The isolates were tested for susceptibility by the current reference broth microdilution methods. Due to concern over the effect o...

journal_title：Antimicrobial agents and chemotherapy

authors： Pfaller MA,Flamm RK,Jones RN,Farrell DJ,Mendes RE

更新日期：2016-08-22 00:00:00

abstract：:A total of 4,226 Spanish clinical isolates of Candida spp. were analyzed to assess resistance to voriconazole according to breakpoints established by the European Committee for Antimicrobial Susceptibility Testing (where susceptibility [S] to voriconazole corresponds to a MIC of ≤ 0.12 mg/liter). Resistance was uncomm...

journal_title：Antimicrobial agents and chemotherapy

authors： Cuenca-Estrella M,Gomez-Lopez A,Cuesta I,Zaragoza O,Mellado E,Rodriguez-Tudela JL,Antifungal Subcommittee of European Committee on Antimicrobial Susceptibility Testing.

更新日期：2011-04-01 00:00:00

abstract：:Cell-free amino acid incorporation using ribosomes from strains of either Clostridium perfringens or Bacteroides fragilis was shown to be susceptible to inhibition by streptomycin and gentamicin. Ribosomes bound dihydrostreptomycin as effectively as ribosomes from Escherichia coli. No inactivation of streptomycin or g...

journal_title：Antimicrobial agents and chemotherapy

authors： Bryan LE,Kowand SK,Van Den Elzen HM

更新日期：1979-01-01 00:00:00

abstract：:Management of treatment-experienced human immunodeficiency virus patients has become complex, and therapy may need to include two protease inhibitors at therapeutic doses. The objective of this study was to characterize the pharmacokinetics in serum of saquinavir (1,000 mg twice daily [b.i.d.]), lopinavir (400 mg b.i....

journal_title：Antimicrobial agents and chemotherapy

authors： Ribera E,Lopez RM,Diaz M,Pou L,Ruiz L,Falcó V,Crespo M,Azuaje C,Ruiz I,Ocaña I,Clotet B,Pahissa A

更新日期：2004-11-01 00:00:00

abstract：:We previously showed that simian immunodeficiency virus-infected macaque macrophages contacting uninfected CD4+ lymphocytes caused extensive cell fusion and synthesis of phlogistic cytokines. In this study, macaque macrophage cultures inoculated with SIVmac251 and treated simultaneously with 10 microM 3'-azidothymidin...

journal_title：Antimicrobial agents and chemotherapy

authors： McEntee MF,Flexner C,Farzadegan H,Pitha P,Narayan O

更新日期：1993-02-01 00:00:00

abstract：:We investigated both the structural and functional consequences of modifying the hydrophobic, lipopeptide-mimetic oligo-acyl-lysine (OAK) N(alpha)-hexadecanoyl-l-lysyl-l-lysyl-aminododecanoyl-l-lysyl-amide (c(16)KKc(12)K) to its unsaturated analog hexadecenoyl-KKc(12)K [c(16(omega7))KKc(12)K]. Despite similar tendenci...

journal_title：Antimicrobial agents and chemotherapy

authors： Sarig H,Rotem S,Ziserman L,Danino D,Mor A

更新日期：2008-12-01 00:00:00

abstract：:Burkholderia cepacia is recognized as an important pathogen in the lung infections of patients with cystic fibrosis. An inducible beta-lactamase activity has been associated with increased resistance to beta-lactam antibiotics in clinical isolates of B. cepacia. In this study, we report the revised sequence of the pen...

journal_title：Antimicrobial agents and chemotherapy

authors： Trépanier S,Prince A,Huletsky A

更新日期：1997-11-01 00:00:00

abstract：:The activities of mecillinam and ampicillin, alone and in combination, were evaluated in mice infected with the LT-2 strain of Salmonella typhimurium. The minimal inhibitory concentrations of mecillinam and ampicillin for this strain were, respectively, 6.2 and 0.4 microgram/ml of culture medium. In vitro synergy was ...

journal_title：Antimicrobial agents and chemotherapy

authors： Butler T,Shuster CW,Dixon P

更新日期：1981-02-01 00:00:00

abstract：:We conducted a randomized controlled trial of orally administered amifloxacin versus trimethoprimsulfamethoxazole (TMP-SMX) as treatments of acute uncomplicated urinary tract infection in women. Amifloxacin at a dosage of 200 mg twice a day appeared as safe and effective as TMP-SMX, but amifloxacin at 400 mg twice a d...

journal_title：Antimicrobial agents and chemotherapy

authors： Boyko EJ,Iravani A,Silverman MH,Schelling DJ,Wright RA

更新日期：1990-04-01 00:00:00

abstract：:A total of 295 ceftiofur-resistant Escherichia coli isolates were obtained from 489 cloacal samples collected at five different Belgian broiler farms with the aim to evaluate the diversity of this resistance at the farm level. Strains were examined for resistance against beta-lactam antibiotics and other antimicrobial...

journal_title：Antimicrobial agents and chemotherapy

authors： Smet A,Martel A,Persoons D,Dewulf J,Heyndrickx M,Catry B,Herman L,Haesebrouck F,Butaye P

更新日期：2008-04-01 00:00:00

abstract：:Multilocus microsatellite polymorphisms in 27 clinical Candida albicans isolates were found to be clearly unrelated to in vitro paradoxical growth or trailing effect with caspofungin. These findings suggest that such in vitro phenotypes are either gained or lost too rapidly to be predicted by more stable genomic marke...

journal_title：Antimicrobial agents and chemotherapy

authors： Khlif M,Bogreau H,Michel-Nguyen A,Ayadi A,Ranque S

更新日期：2010-03-01 00:00:00

abstract：:In vitro selection of mutants with decreased susceptibility to ertapenem was performed using Escherichia coli and Klebsiella pneumoniae clinical strains producing either the bla(CTX-M-2), bla(CTX-M-3), bla(CTX-M-9), or bla(CTX-M-15) gene. Frequencies of mutants with decreased susceptibilities to ertapenem were similar...

journal_title：Antimicrobial agents and chemotherapy

authors： Girlich D,Poirel L,Nordmann P

更新日期：2009-02-01 00:00:00

abstract：:Viral entry inhibitors represent an emerging mode of therapy for human immunodeficiency virus type 1 (HIV-1) infection. PRO 542 (CD4-immunoglobulin G2) is a tetravalent CD4-immunoglobulin fusion protein that broadly neutralizes primary HIV-1 isolates. PRO 542 binds to the viral surface glycoprotein gp120 and blocks at...

journal_title：Antimicrobial agents and chemotherapy

authors： Jacobson JM,Israel RJ,Lowy I,Ostrow NA,Vassilatos LS,Barish M,Tran DN,Sullivan BM,Ketas TJ,O'Neill TJ,Nagashima KA,Huang W,Petropoulos CJ,Moore JP,Maddon PJ,Olson WC

更新日期：2004-02-01 00:00:00

abstract：:The antimicrobial activities of amphotericin B, itraconazole, and miconazole against 101 filamentous fungi from patients with cystic fibrosis were tested by a reproducible microdilution method. Itraconazole was very active against Aspergillus species and Scedosporium species (MIC at which 90% of the isolates were inhi...

journal_title：Antimicrobial agents and chemotherapy

authors： Hennequin C,Benailly N,Silly C,Sorin M,Scheinmann P,Lenoir G,Gaillard JL,Berche P

更新日期：1997-09-01 00:00:00

abstract：:LFF571 is a novel semisynthetic thiopeptide antibiotic with potent activity against a variety of Gram-positive pathogens, including Clostridium difficile. In vivo efficacy of LFF571 was compared to vancomycin in a hamster model of C. difficile infection (CDI). Infection was induced in Golden Syrian hamsters using a to...

journal_title：Antimicrobial agents and chemotherapy

authors： Trzasko A,Leeds JA,Praestgaard J,Lamarche MJ,McKenney D

更新日期：2012-08-01 00:00:00

abstract：:Recent Food and Drug Administration (FDA) guidance endorses the use of an early clinical response endpoint as the primary outcome for community-acquired bacterial pneumonia (CABP) trials. While antibiotics will now be approved for CABP, in practice they will primarily be used to treat patients with community-acquired ...

journal_title：Antimicrobial agents and chemotherapy

authors： Zasowski E,Butterfield JM,McNutt LA,Cohen J,Cosler L,Pai MP,Gottwald J,Chen WZ,Lodise TP

更新日期：2014-07-01 00:00:00

abstract：:The objective of this study is to evaluate the results of single-day doxycycline therapy for Mediterranean spotted fever (MSF). This is a prospective cohort study of cases with confirmed MSF treated with the single-day doxycycline regimen in a teaching hospital from 1990 to 2015. Patients received two oral doses of 20...

journal_title：Antimicrobial agents and chemotherapy

authors： Espejo E,Andrés M,Garcia MC,Fajardo A,Pérez J,Bella F

更新日期：2018-10-24 00:00:00

abstract：:Serum and milk concentrations of rifamycin SV and rifampin were determined in lactating ewes after a single intravenous injection, and pharmacokinetic parameters were evaluated by the two-compartment open-system model. Rifampin was distributed throughout a greater volume than rifamycin SV and was eliminated more slowl...

journal_title：Antimicrobial agents and chemotherapy

authors： Ziv G,Sulman FG

更新日期：1974-02-01 00:00:00