23S rRNA 2058A-->G alteration mediates ketolide resistance in combination with deletion in L22.

abstract：:We and others recently identified copper resistance as important for virulence of Mycobacterium tuberculosis. Here, we introduce a high-throughput screening assay for agents that induce a copper hypersensitivity phenotype in M. tuberculosis and demonstrate that such copper-boosting compounds are effective against repl...

journal_title：Antimicrobial agents and chemotherapy

authors： Speer A,Shrestha TB,Bossmann SH,Basaraba RJ,Harber GJ,Michalek SM,Niederweis M,Kutsch O,Wolschendorf F

更新日期：2013-02-01 00:00:00

abstract：:Most surveys for class 1 integrons are at least partly predicated on PCR screening that targets integron conserved regions. However, class 1 integrons are structurally diverse, so dependence on conserved regions may lead to missing clinically relevant examples of class 1 integrons. Here, we surveyed a commensal popula...

journal_title：Antimicrobial agents and chemotherapy

authors： Betteridge T,Partridge SR,Iredell JR,Stokes HW

更新日期：2011-08-01 00:00:00

abstract：:Acyclovir reduced mortality and organ virus titers in mice inoculated intraperitoneally with 10 50% lethal doses of mouse cytomegalovirus. This susceptibility to acyclovir of a herpesvirus which lacks thymidine kinase is surprising. Alternative phosphorylating enzymes may account for this susceptibility. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Wingard JR,Bender WJ,Saral R,Burns WH

更新日期：1981-08-01 00:00:00

abstract：:PA-824 is a novel antibacterial agent that has shown in vitro activity against both drug-sensitive and drug-resistant Mycobacterium tuberculosis. The compound's MIC is between 0.015 and 0.25 microg/ml for drug-sensitive strains and between 0.03 and 0.53 microg/ml for drug-resistant strains. In addition, it is active a...

journal_title：Antimicrobial agents and chemotherapy

authors： Ginsberg AM,Laurenzi MW,Rouse DJ,Whitney KD,Spigelman MK

更新日期：2009-09-01 00:00:00

abstract：:The lfrA gene of Mycobacterium smegmatis encodes an efflux pump which mediates resistance to different fluoroquinolones, cationic dyes, and anthracyclines. The deletion of the lfrR gene, coding for a putative repressor and localized upstream of lfrA, increased the lfrA expression. In this study, reverse transcription-...

journal_title：Antimicrobial agents and chemotherapy

authors： Buroni S,Manina G,Guglierame P,Pasca MR,Riccardi G,De Rossi E

更新日期：2006-12-01 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：:Novel penem molecules with heterocycle substitutions at the 6 position via a methylidene linkage were investigated for their activities and efficacy as beta-lactamase inhibitors. The concentrations of these molecules that resulted in 50% inhibition of enzyme activity were 0.4 to 3.1 nM for the TEM-1 enzyme, 7.8 to 72 ...

journal_title：Antimicrobial agents and chemotherapy

authors： Weiss WJ,Petersen PJ,Murphy TM,Tardio L,Yang Y,Bradford PA,Venkatesan AM,Abe T,Isoda T,Mihira A,Ushirogochi H,Takasake T,Projan S,O'Connell J,Mansour TS

更新日期：2004-12-01 00:00:00

abstract：:The increasing incidence and severity of infection by Clostridium difficile have stimulated attempts to develop new antimicrobial therapies. We report here the relative abilities of two antibiotics (metronidazole and vancomycin) in current use for treating C. difficile infection and of a third antimicrobial, surotomyc...

journal_title：Antimicrobial agents and chemotherapy

authors： Bouillaut L,McBride S,Sorg JA,Schmidt DJ,Suarez JM,Tzipori S,Mascio C,Chesnel L,Sonenshein AL

更新日期：2015-07-01 00:00:00

abstract：:In this study, we characterized two tigecycline-resistant Klebsiella pneumoniae isolates from dog urine samples. The isolates were genetically unrelated, belonging to sequence type 11 (ST11) and ST147, both classically related to human isolates. To the best of our knowledge, this is the first identification of tigecyc...

journal_title：Antimicrobial agents and chemotherapy

authors： Ovejero CM,Escudero JA,Thomas-Lopez D,Hoefer A,Moyano G,Montero N,Martin-Espada C,Gonzalez-Zorn B

更新日期：2017-05-24 00:00:00

abstract：:Numerous bacterial pathogens, particularly those that colonize fast-flow areas in the bladder and gastrointestinal tract, require motility to establish infection and spread beyond the initially colonized tissue. Vibrio cholerae strains of serogroups O1 and O139, the causative agents of the diarrheal illness cholera, e...

journal_title：Antimicrobial agents and chemotherapy

authors： Rasmussen L,White EL,Pathak A,Ayala JC,Wang H,Wu JH,Benitez JA,Silva AJ

更新日期：2011-09-01 00:00:00

abstract：:This study was directed at characterizing the genetic elements carrying the methylase gene erm(B), encoding ribosome modification-mediated resistance to macrolide, lincosamide, and streptogramin B (MLS) antibiotics, in Streptococcus pyogenes. In this species, erm(B) is responsible for MLS resistance in constitutively ...

journal_title：Antimicrobial agents and chemotherapy

authors： Brenciani A,Bacciaglia A,Vecchi M,Vitali LA,Varaldo PE,Giovanetti E

更新日期：2007-04-01 00:00:00

abstract：:We evaluated the pharmacodynamic activities of fluconazole and amphotericin B given alone and in combination against Candida albicans by using an in vitro model of bloodstream infection that simulates human serum pharmacokinetic parameters for these antifungals. Fluconazole was administered as a bolus into the model t...

journal_title：Antimicrobial agents and chemotherapy

authors： Lewis RE,Lund BC,Klepser ME,Ernst EJ,Pfaller MA

更新日期：1998-06-01 00:00:00

abstract：:Pseudomonas putida is well known for its metabolic capabilities, but recently, it has been shown to exhibit resistance to a wide range of antibiotics. In P. putida DOT-T1E, the TtgABC efflux pump, which has a broad substrate specificity, extrudes antibiotics such as ampicillin, carbenicillin, tetracycline, nalidixic a...

journal_title：Antimicrobial agents and chemotherapy

authors： Terán W,Felipe A,Segura A,Rojas A,Ramos JL,Gallegos MT

更新日期：2003-10-01 00:00:00

abstract：:More than 250 Providencia strains isolated from the urine of institutionalized elderly patients were tested against cefaclor, cefuroxime, cefetamet, cefpodoxime, ciprofloxacin, and amoxicillin-clavulanic acid. Our results confirm the strong activities of expanded-spectrum oral cephalosporins against Providencia isolat...

journal_title：Antimicrobial agents and chemotherapy

authors： Cornaglia G,Frugoni S,Mazzariol A,Piacentini E,Berlusconi A,Fontana R

更新日期：1995-12-01 00:00:00

abstract：:The role of linezolid in empirical therapy of suspected bacteremia remains unclear. The aim of this study was to evaluate the influence of empirical use of linezolid or glycopeptides in addition to other antibiotics on the 30-day mortality rates in patients with Gram-negative bacteremia. For this purpose, 1,126 patien...

journal_title：Antimicrobial agents and chemotherapy

authors： Ternavasio-de la Vega HG,Mateos-Díaz AM,Martinez JA,Almela M,Cobos-Trigueros N,Morata L,De-la-Calle C,Sala M,Mensa J,Marcos M,Soriano A

更新日期：2014-12-01 00:00:00

abstract：:Establishing an effective empirical antifungal therapy requires that national surveillance studies be conducted. Herein, we report the clinical outcome of infections with and the microbiological features of Iranian isolates of Candidaglabrata derived from patients suffering from candidemia. C. glabrata isolates were r...

journal_title：Antimicrobial agents and chemotherapy

authors： Arastehfar A,Daneshnia F,Zomorodian K,Najafzadeh MJ,Khodavaisy S,Zarrinfar H,Hagen F,Zare Shahrabadi Z,Lackner M,Mirhendi H,Salehi M,Roudbary M,Pan W,Kostrzewa M,Boekhout T

更新日期：2019-06-24 00:00:00

abstract：:Acinetobacter baumannii has emerged as a serious problematic pathogen due to the ever-increasing presence of antibiotic resistance, demonstrating a need for novel, broad-spectrum antimicrobial therapeutic options. Antimicrobial nanoemulsions are emulsified mixtures of detergent, oil, and water (droplet size, 100 to 80...

journal_title：Antimicrobial agents and chemotherapy

authors： Hwang YY,Ramalingam K,Bienek DR,Lee V,You T,Alvarez R

更新日期：2013-08-01 00:00:00

abstract：:The activities of DU-6859a, levofloxacin, ofloxacin, sparfloxacin, and ciprofloxacin against bite wound isolates were determined by the agar dilution method. DU-6859a was the most active compound (MICs, < or = 0.125 microg/ml) against all Pasteurella species, Staphylococcus aureus, and streptococci; anaerobes were sus...

journal_title：Antimicrobial agents and chemotherapy

authors： Goldstein EJ,Citron DM,Hunt Gerardo S,Hudspeth M,Merriam CV

更新日期：1997-05-01 00:00:00

abstract：:Minimal inhibitory concentrations (MICs) and minimal bactericidal concentrations (MBCs) of penicillin, ampicillin, cefoxitin, and cefuroxime were determined for 103 beta-lactamase-negative Neisseria gonorrhoeae clinical isolates belonging to five different auxotypes. MBC determinations were base on killing 99.9% of th...

journal_title：Antimicrobial agents and chemotherapy

authors： de Repentigny L,Turgeon PL

更新日期：1981-04-01 00:00:00

abstract：:Although the clinical correlates of the reference antifungal susceptibility test results in hematogenous and deep-seated Candida infection are still controversial, we evaluated the clinical correlates of this test in deep-seated Candida infections in non-AIDS patients. Thirty-two non-AIDS patients with hematogenous or...

journal_title：Antimicrobial agents and chemotherapy

authors： Lee SC,Fung CP,Huang JS,Tsai CJ,Chen KS,Chen HY,Lee N,See LC,Shieh WB

更新日期：2000-10-01 00:00:00

abstract：:Albendazole is an anthelmintic drug widely used in the treatment of neurocysticercosis (NCC), an infection of the brain with Taenia solium cysts. However, drug levels of its active metabolite, albendazole sulfoxide (ABZSO), are erratic, likely resulting in decreased efficacy and suboptimal cure rates in NCC. Racemic a...

journal_title：Antimicrobial agents and chemotherapy

authors： Paredes A,de Campos Lourenço T,Marzal M,Rivera A,Dorny P,Mahanty S,Guerra-Giraldez C,García HH,Nash TE,Cass QB,Cysticercosis Working Group in Peru.

更新日期：2013-02-01 00:00:00

abstract：:This study was undertaken to investigate biochemical, genetic, and epidemiological aspects of resistance to aminoglycoside antibiotics among 650 consecutive isolates of Pseudomonas aeruginosa from Parkland Memorial Hospital, Dallas, Tex. In 364 strains, minimal inhibitory concentrations were 25 mug/ml or greater for g...

journal_title：Antimicrobial agents and chemotherapy

authors： Holmes RK,Minshew BH,Gould IK,Sanford JP

更新日期：1974-09-01 00:00:00

abstract：:Genes belonging to different erm DNA hybridization classes were selectively amplified by polymerase chain reaction with a pair of oligonucleotides that corresponded to conserved amino acid motifs in known ERM methylases. Identification of the resistance mechanism was possible despite substantial nucleotide sequence di...

journal_title：Antimicrobial agents and chemotherapy

authors： Arthur M,Molinas C,Mabilat C,Courvalin P

更新日期：1990-10-01 00:00:00

abstract：:The activities of ampicillin, meropenem, azithromycin, gentamicin, ciprofloxacin, and moxifloxacin against intracellular hemolysin-positive Listeria monocytogenes were measured in human THP-1 macrophages and were compared with the extracellular activities observed in broth. All extracellular concentrations were adjust...

journal_title：Antimicrobial agents and chemotherapy

authors： Carryn S,Van Bambeke F,Mingeot-Leclercq MP,Tulkens PM

更新日期：2002-07-01 00:00:00

abstract：:Endoplasmic reticulum (ER)-resident glucosidases I and II sequentially trim the three terminal glucose moieties on the N-linked glycans attached to nascent glycoproteins. These reactions are the first steps of N-linked glycan processing and are essential for proper folding and function of many glycoproteins. Because m...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhao X,Guo F,Comunale MA,Mehta A,Sehgal M,Jain P,Cuconati A,Lin H,Block TM,Chang J,Guo JT

更新日期：2015-01-01 00:00:00

abstract：:The gene coding for aminoglycoside 2'-N-acetyltransferase Ia [AAC(2')-Ia] from Providencia stuartii was amplified by PCR and cloned. The resulting construct, pACKF2, was transferred into Escherichia coli for overexpression of AAC(2')-Ia as a fusion protein with an N-terminal hexa-His tag. The fusion protein was isolat...

journal_title：Antimicrobial agents and chemotherapy

authors： Franklin K,Clarke AJ

更新日期：2001-08-01 00:00:00

abstract：:Viral pathogens causing global disease burdens are often characterized by high rates of evolutionary changes. The extensive viral diversity at baseline can shorten the time to escape from therapeutic or immune selective pressure and alter mutational pathways. The impact of genotypic background on the barrier to resist...

journal_title：Antimicrobial agents and chemotherapy

authors： Theys K,Libin PJK,Van Laethem K,Abecasis AB

更新日期：2019-07-25 00:00:00

abstract：:Fleroxacin was administered to seven lactating women as a single oral dose of 400 mg. Plasma, urine, and milk samples were collected for up to 48 h after administration. Drug concentrations were determined by a reversed-phase high-pressure liquid chromatography method and were used for the pharmacokinetic evaluation. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Dan M,Weidekamm E,Sagiv R,Portmann R,Zakut H

更新日期：1993-02-01 00:00:00

abstract：:Eighty percent (21 of 26) of macrolide-resistant Peptostreptococcus strains studied harbored the ermTR gene. This methyltransferase gene is also the most frequently found gene among macrolide-lincosamide-streptogramin B-resistant Streptococcus pyogenes strains. Transfer of the ermTR gene from Peptostreptococcus magnus...

journal_title：Antimicrobial agents and chemotherapy

authors： Reig M,Galan J,Baquero F,Perez-Diaz JC

更新日期：2001-02-01 00:00:00

abstract：:Pefloxacin mesylate is well absorbed by the oral route. The antimicrobial activity in dog, cynomolgus monkey, and human plasma was essentially due to unchanged drug which respectively accounted for 64, 94, and 84% of the total activity (ratios derived from relative area under the curve [AUC] values). Half-lives ranged...

journal_title：Antimicrobial agents and chemotherapy

authors： Montay G,Goueffon Y,Roquet F

更新日期：1984-04-01 00:00:00