Active efflux of antimicrobial agents in wild-type strains of enterococci.

abstract：:Clostridium difficile is a major nosocomial pathogen responsible for pseudomembranous colitis and many cases of antibiotic-associated diarrhea. Because of potential relapse of disease with current antimicrobial therapy protocols, there is a need for additional and/or alternative antimicrobial agents for the treatment ...

journal_title：Antimicrobial agents and chemotherapy

authors： Mahony DE,Lim-Morrison S,Bryden L,Faulkner G,Hoffman PS,Agocs L,Briand GG,Burford N,Maguire H

更新日期：1999-03-01 00:00:00

abstract：:The mechanisms of fluconazole resistance in three clinical isolates of Candida krusei were investigated. Analysis of sterols of organisms grown in the absence and presence of fluconazole demonstrated that the predominant sterol of C. krusei is ergosterol and that fluconazole inhibits 14alpha-demethylase in this organi...

journal_title：Antimicrobial agents and chemotherapy

authors： Orozco AS,Higginbotham LM,Hitchcock CA,Parkinson T,Falconer D,Ibrahim AS,Ghannoum MA,Filler SG

更新日期：1998-10-01 00:00:00

abstract：:Pipemidic acid was absorbed well by the oral route. Its peak levels in plasma ranged from 4 to 12 mug/ml at an oral dose of about 50 mg/kg in mice, rats, dogs, monkeys, and men. The protein binding of pipemidic acid was about 20% in dog plasma and about 30% in human serum. Pipemidic acid was distributed to most of the...

journal_title：Antimicrobial agents and chemotherapy

authors： Shimizu M,Nakamura S,Takase Y,Kurobe N

更新日期：1975-04-01 00:00:00

abstract：:The susceptibilities of five zanamivir-resistant and six oseltamivir-resistant influenza viruses were assessed against four neuraminidase (NA) inhibitors, including peramivir and A-315675, by a fluorometric NA activity inhibition assay. The enzyme activity of a majority of the variants was effectively inhibited by eit...

journal_title：Antimicrobial agents and chemotherapy

authors： Mishin VP,Hayden FG,Gubareva LV

更新日期：2005-11-01 00:00:00

abstract：:To evaluate maternal-fetal pharmacology of cefatrizine (BL-S 640), a new oral cephalosporin, a single oral 1,000-mg dose was administered to 33 gravidas (8 to 20 weeks' gestation) at varying intervals within 46 h of an elective therapeutic abortion by hysterectomy or intra-amniotic prostaglandin F(2a) induction. Mean ...

journal_title：Antimicrobial agents and chemotherapy

authors： Bernard B,Thielen P,Garcia-Cázares J,Ballard CA

更新日期：1977-08-01 00:00:00

abstract：:Rates of metallo-beta-lactamase and 16S rRNA methylase production were investigated in 51 imipenem-resistant Pseudomonas aeruginosa clinical isolates collected from hospitals in São Paulo, Brazil. Of them, 57% and 75% produced SPM-1 and RmtD, respectively. Of note, 51% produced both enzymes, suggesting that their copr...

journal_title：Antimicrobial agents and chemotherapy

authors： Doi Y,Ghilardi AC,Adams J,de Oliveira Garcia D,Paterson DL

更新日期：2007-09-01 00:00:00

abstract：:Despite being genetically monomorphic, the limited genetic diversity within the Mycobacterium tuberculosis complex (MTBC) has practical consequences for molecular methods for drug susceptibility testing and for the use of current antibiotics and those in clinical trials. It renders some representatives of MTBC intrins...

journal_title：Antimicrobial agents and chemotherapy

authors： Köser CU,Feuerriegel S,Summers DK,Archer JA,Niemann S

更新日期：2012-12-01 00:00:00

abstract：:Viomycin-resistant strains isolated from Mycobacterium smegmatis demonstrated pleiotropic resistance to tuberactinomycin-N, capreomycin, streptomycin, and kanamycin as a result of mutational alteration of ribosomes, even though they were selected for resistance to a single antibiotic. The pleiotropic drug resistance o...

journal_title：Antimicrobial agents and chemotherapy

authors： Yamada T,Masuda K,Shoji K,Hori M

更新日期：1974-07-01 00:00:00

abstract：:The penetration of cefonicid and cefazolin into cardiac tissue was compared after a single 30-mg/kg dose in 30 patients undergoing aortocoronary artery bypass graft surgery. Samples of the right atrial appendage, pericardial fluid, and serum were obtained at various times and assayed for drug content. The concentratio...

journal_title：Antimicrobial agents and chemotherapy

authors： Dudley MN,Nightingale CH,Drezner AD,Low HB,Quintiliani R

更新日期：1984-09-01 00:00:00

abstract：:Nonionic surface-active agents possessing ether or amide linkages between the hydrophillic and hydrophobic portions of the molecule rapidly inactivated the infectivity of herpes simplex viruses. The activity stemmed from the ability of nonionic surfactants to dissolve lipid-containing membranes. This was confirmed by ...

journal_title：Antimicrobial agents and chemotherapy

authors： Asculai SS,Weis MT,Rancourt MW,Kupferberg AB

更新日期：1978-04-01 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：:TEM-1 hyperproduction in two ampicillin-sulbactam-resistant Shigella flexneri strains was studied. In both strains the blaTEM gene was encoded as a single copy on a large conjugatively transferable plasmid. A single G-->T transversion at position 1 of the -10 consensus sequence was identified to be the mechanism of TE...

journal_title：Antimicrobial agents and chemotherapy

authors： Siu LK,Ho PL,Yuen KY,Wong SS,Chau PY

更新日期：1997-02-01 00:00:00

abstract：:The novel ATP synthase inhibitor bedaquiline recently received accelerated approval for treatment of multidrug-resistant tuberculosis and is currently being studied as a component of novel treatment-shortening regimens for drug-susceptible and multidrug-resistant tuberculosis. In a limited number of bedaquiline-treate...

journal_title：Antimicrobial agents and chemotherapy

authors： Almeida D,Ioerger T,Tyagi S,Li SY,Mdluli K,Andries K,Grosset J,Sacchettini J,Nuermberger E

更新日期：2016-07-22 00:00:00

abstract：:Antifolate drugs have an important role in the treatment of malaria. Polymorphisms in the genes encoding the dihydrofolate reductase and dihydropteroate synthetase enzymes cause resistance to the antifol and sulfa drugs, respectively. Rwanda has the highest levels of antimalarial drug resistance in Africa. We correlat...

journal_title：Antimicrobial agents and chemotherapy

authors： Karema C,Imwong M,Fanello CI,Stepniewska K,Uwimana A,Nakeesathit S,Dondorp A,Day NP,White NJ

更新日期：2010-01-01 00:00:00

abstract：:Weak mutators are common among clinical isolates of Escherichia coli. We show that the relative mutation rate and the "evolvability of fluoroquinolone resistance" are related by a power law slope of 1.2 over 3 orders of magnitude. Thus, even weak mutators can drive the evolution of fluoroquinolone resistance under sel...

journal_title：Antimicrobial agents and chemotherapy

authors： Orlén H,Hughes D

更新日期：2006-10-01 00:00:00

abstract：:The 2-amino-5-halo-pyrimidinones, which are potent interferon inducers and antiviral agents, were found to be protective against lethal cytomegalovirus (CMV) challenge in weanling or neonatal mice when administered before virus challenge. This protection was dependent upon the dosage of pyrimidinone administered. Wean...

journal_title：Antimicrobial agents and chemotherapy

authors： Brideau RJ,Wolcott JA

更新日期：1985-10-01 00:00:00

abstract：:The incidence rates of travelers' diarrhea (TD) have remained high for the last 50 years. More recently, there have been increasing recommendations for self-initiated therapy and use of prophylactic drugs for TD. We last examined the in vitro susceptibilities of commonly used antibiotics against TD pathogens in 1997. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Ouyang-Latimer J,Jafri S,VanTassel A,Jiang ZD,Gurleen K,Rodriguez S,Nandy RK,Ramamurthy T,Chatterjee S,McKenzie R,Steffen R,DuPont HL

更新日期：2011-02-01 00:00:00

abstract：:The rate of nonsusceptibility of penicillin-resistant Streptococcus pneumoniae strains to ceftriaxone increased significantly in Taiwan in 2005. Approximately 90% of the ceftriaxone-nonsusceptible isolates were found to be of four major serotypes (serotypes 6B, 14, 19F, and 23F). Seven amino acid alterations in the pe...

journal_title：Antimicrobial agents and chemotherapy

authors： Chiu CH,Su LH,Huang YC,Lai JC,Chen HL,Wu TL,Lin TY

更新日期：2007-09-01 00:00:00

abstract：:The in vitro activities of luliconazole, amorolfine, ciclopirox, and terbinafine were determined against 320 dermatophyte isolates from large toenails of onychomycosis patients enrolled into an ongoing phase 2b/3 clinical study. The geometric mean MIC for luliconazole was 0.00022 μg/ml against all isolates, compared t...

journal_title：Antimicrobial agents and chemotherapy

authors： Wiederhold NP,Fothergill AW,McCarthy DI,Tavakkol A

更新日期：2014-06-01 00:00:00

abstract：:Guanylhydrazones are cationic heteroaromatic drugs similar to the diamidines which are effective in the treatment of African trypanosomiasis and pneumocystosis. On the basis of their antitrypanosomal activity, different guanylhydrazones were selected for evaluation in a rat model of Pneumocystis carinii pneumonia. The...

journal_title：Antimicrobial agents and chemotherapy

authors： Walzer PD,Foy J,Runck J,Steele P,White M,Klein RS,Otter BA,Sundberg RJ

更新日期：1994-11-01 00:00:00

abstract：:We present a new strategy for predicting novel antibiotic mechanisms of action based on the analysis of whole-genome microarray data. We first built up a reference compendium of Bacillus subtilis expression profiles induced by 14 different antibiotics. This data set was expanded by adding expression profiles from muta...

journal_title：Antimicrobial agents and chemotherapy

authors： Freiberg C,Fischer HP,Brunner NA

更新日期：2005-02-01 00:00:00

abstract：:Tn5801, originally detected in Staphylococcus aureus Mu50, is a Tn916 family element in which a unique int gene (int5801) replaces the int and xis genes in Tn916 (int916 and xis916). Among 62 tet(M)-positive tetracycline-resistant Streptococcus agalactiae isolates, 43 harbored Tn916, whereas 19 harbored a Tn5801-like ...

journal_title：Antimicrobial agents and chemotherapy

authors： Mingoia M,Morici E,Tili E,Giovanetti E,Montanari MP,Varaldo PE

更新日期：2013-09-01 00:00:00

abstract：:Four isogenic derivatives with stably increased glycopeptide MICs (all become resistant to teicoplanin) were obtained from four glycopeptide-susceptible clinical isolates of Staphylococcus haemolyticus. All strains were extensively analyzed and compared for a number of distinctive features. In particular, the results ...

journal_title：Antimicrobial agents and chemotherapy

authors： Vignaroli C,Biavasco F,Varaldo PE

更新日期：2006-07-01 00:00:00

abstract：:We have evaluated the susceptibility of the murine gamma herpesvirus 68 (MHV-68) to a variety of antiviral agents. The acyclic nucleoside phosphonate analogs cidofovir [(S)-1-(3-hydroxy-2-phosphonylmethoxypropyl) cytosine], (S)-1-(3-hydroxy-2-phosphonylmethoxypropyl)adenine (HPMPA), and adefovir [9-(2-phosphonylmethox...

journal_title：Antimicrobial agents and chemotherapy

authors： Neyts J,De Clercq E

更新日期：1998-01-01 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：:Sulfobutylether-beta-cyclodextrin (SBECD), a large cyclic oligosaccharide that is used to solubilize voriconazole (VRC) for intravenous administration, is eliminated mainly by renal excretion. The pharmacokinetics of SBECD and voriconazole in patients undergoing extracorporeal renal replacement therapies are not well ...

journal_title：Antimicrobial agents and chemotherapy

authors： Hafner V,Czock D,Burhenne J,Riedel KD,Bommer J,Mikus G,Machleidt C,Weinreich T,Haefeli WE

更新日期：2010-06-01 00:00:00

abstract：:The anti-pseudomonas activities of azlocillin and mezlocillin were compared with that of ticarcillin. We measured the minimal inhibitory and minimal bactericidal concentrations of the three drugs against 20 different strains of Pseudomonas aeruginosa and found significantly lower values for azlocillin than for the oth...

journal_title：Antimicrobial agents and chemotherapy

authors： Coppens L,Klastersky J

更新日期：1979-03-01 00:00:00

abstract：:Histoplasmosis is a severe infection that affects millions of patients worldwide and is endemic in the Americas. Amphotericin B (AMB) and itraconazole are highly effective for the treatment of severe and milder forms of the disease, but AMB is toxic, and the bioavailability of itraconazole is erratic. Therefore, it is...

journal_title：Antimicrobial agents and chemotherapy

authors： de Aguiar Cordeiro R,de Farias Marques FJ,de Aguiar Cordeiro R,da Silva MR,Donato Maia Malaquias A,Silva de Melo CV,Mafezoli J,Ferreira de Oliveira Mda C,Nogueira Brilhante RS,Gadelha Rocha MF,Pinheiro Gomes Bandeira Tde J,Costa Si

更新日期：2014-05-01 00:00:00

abstract：:Previous studies indicated that inhibition of efflux pumps augments tuberculosis therapy. In this study, we used timcodar (formerly VX-853) to determine if this efflux pump inhibitor could increase the potency of antituberculosis (anti-TB) drugs against Mycobacterium tuberculosis in in vitro and in vivo combination st...

journal_title：Antimicrobial agents and chemotherapy

authors： Grossman TH,Shoen CM,Jones SM,Jones PL,Cynamon MH,Locher CP

更新日期：2015-03-01 00:00:00

abstract：:We use kinetic models to investigate how to design antimicrobial phage therapies to minimize emergence of resistant bacteria. We do this by modifying the "mutant selection window" hypothesis in a way that accounts for the ongoing self-replication of the phage. We show that components of combination phage therapies nee...

journal_title：Antimicrobial agents and chemotherapy

authors： Cairns BJ,Payne RJ

更新日期：2008-12-01 00:00:00