Role of extracellular iron in the action of the quinone antibiotic streptonigrin: mechanisms of killing and resistance of Neisseria gonorrhoeae.

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：:4,4'-Isopropylidine-bis[2-isopropyl]phenol was found to possess antimicrobial activity against gram-positive bacteria and some fungi, whereas it had no effect on gram-negative organisms. The drug has a potent inhibitory action on the synthesis of cell wall mucopeptides of Bacillus subtilis by inhibiting the enzyme d-g...

journal_title：Antimicrobial agents and chemotherapy

authors： Shimi IR,Shoukry S,Zaki Z

更新日期：1976-04-01 00:00:00

abstract：:Major disagreements between two automated susceptibility test instruments, Autobac-1 and MS-2, generated from 4,213 tests on 630 bacterial isolates, were analyzed. The major disagreement rate between the instruments was only 7.4%. The highest major disagreement rates for bacteria were with Staphylococcus epidermidis, ...

journal_title：Antimicrobial agents and chemotherapy

authors： Lindsey NJ,Barnes WG

更新日期：1981-07-01 00:00:00

abstract：:INX-08189 is an aryl-phosphoramidate of 6-O-methyl-2'-C-methyl guanosine. INX-08189 was highly potent in replicon assays, with a 50% effective concentration of 10±6 nM against hepatitis C genotype 1b at 72 h. The inhibitory effect on viral replication was rapid, with a 50% effective concentration (EC50) of 35±8 nM at ...

journal_title：Antimicrobial agents and chemotherapy

authors： Vernachio JH,Bleiman B,Bryant KD,Chamberlain S,Hunley D,Hutchins J,Ames B,Gorovits E,Ganguly B,Hall A,Kolykhalov A,Liu Y,Muhammad J,Raja N,Walters CR,Wang J,Williams K,Patti JM,Henson G,Madela K,Aljarah M,Gilles

更新日期：2011-05-01 00:00:00

abstract：:Rifalazil, also known as KRM-1648 or benzoxazinorifamycin, is a new semisynthetic rifamycin with a long half-life of approximately 60 h. Rifalazil has potent bactericidal activity against Mycobacterium tuberculosis in vitro and in animal models of tuberculosis (TB). Prior studies in healthy volunteers showed that once...

journal_title：Antimicrobial agents and chemotherapy

authors： Dietze R,Teixeira L,Rocha LM,Palaci M,Johnson JL,Wells C,Rose L,Eisenach K,Ellner JJ

更新日期：2001-07-01 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：:Treatment of HIV-infected patients coinfected with Mycobacterium tuberculosis is challenging due to drug-drug interactions (DDIs) between antiretrovirals (ARVs) and antituberculosis (anti-TB) drugs. The aim of this study was to quantify the effect of cobicistat (COBI) or ritonavir (RTV) in modulating DDIs between daru...

journal_title：Antimicrobial agents and chemotherapy

authors： Roberts O,Khoo S,Owen A,Siccardi M

更新日期：2017-04-24 00:00:00

abstract：:No effective approved drug therapy exists for Cryptosporidium infection of immunocompromised patients. Here we investigated the nonabsorbed anthelmintic drug pyrvinium pamoate for inhibition of the growth of the intestinal protozoan parasite Cryptosporidium parvum. The concentration of pyrvinium that effected 50% grow...

journal_title：Antimicrobial agents and chemotherapy

authors： Downey AS,Chong CR,Graczyk TK,Sullivan DJ

更新日期：2008-09-01 00:00:00

abstract：:Study of the antimicrobial spectrum of valinomycin revealed that, in addition to the gram-positive bacteria reported in literature, Streptococcus pyogenes and Clostridium sporogenes are also susceptible to this antibiotic. The minimal inhibitory concentrations (MIC) of the antibiotic for S. pyogenes grown aerobically ...

journal_title：Antimicrobial agents and chemotherapy

authors： Seshachalam D,Frahm DH,Ferraro FM

更新日期：1973-01-01 00:00:00

abstract：:Subinhibitory concentrations of antibiotics have been shown to enhance biofilm formation in multiple bacterial species. While antibiotic exposure has been associated with modulated expression of many biofilm-related genes, the mechanisms of drug-induced biofilm formation remain a focus of ongoing research efforts and ...

journal_title：Antimicrobial agents and chemotherapy

authors： Yu W,Hallinen KM,Wood KB

更新日期：2017-12-21 00:00:00

abstract：:The phenotype of Klebsiella pneumoniae HEL-1 indicates a plasmidic cephamycinase gene (blaCMY-2). Its sequence shows one open reading frame coding for a protein of 381 amino acids. CMY-2 is classified as class C beta-lactamase that is closely related to the plasmidic enzymes BIL-1 and LAT-1 and the chromosomal AmpC of...

journal_title：Antimicrobial agents and chemotherapy

authors： Bauernfeind A,Stemplinger I,Jungwirth R,Giamarellou H

更新日期：1996-01-01 00:00:00

abstract：:Exposure-response analyses for efficacy and safety were performed for tigecycline-treated patients suffering from community-acquired pneumonia. Data were collected from two randomized, controlled clinical trials in which patients were administered a 100-mg loading dose followed by 50 mg of tigecycline every 12 h. A ca...

journal_title：Antimicrobial agents and chemotherapy

authors： Rubino CM,Bhavnani SM,Forrest A,Dukart G,Dartois N,Cooper A,Korth-Bradley J,Ambrose PG

更新日期：2012-01-01 00:00:00

abstract：:S. aureus combats cell wall antibiotic stress by altered gene expression mediated by various environmental signal sensors. In this study, we examined the transcriptional regulation of trfA, a gene related to mecA of Bacillus subtilis encoding an adaptor protein implicated in multiple roles, notably, proteolysis and ge...

journal_title：Antimicrobial agents and chemotherapy

authors： Jousselin A,Kelley WL,Barras C,Lew DP,Renzoni A

更新日期：2013-07-01 00:00:00

abstract：:Using J774 macrophages, the intracellular activities of gentamicin, azithromycin, telithromycin, ciprofloxacin, moxifloxacin, and oritavancin (LY333328) against Staphylococcus aureus (strain ATCC 25923) have been quantitatively assessed in a 24-h model. S. aureus was positively localized in phagolysosomes by confocal ...

journal_title：Antimicrobial agents and chemotherapy

authors： Seral C,Van Bambeke F,Tulkens PM

更新日期：2003-07-01 00:00:00

abstract：:Five isoforms of protein mannosyltransferase (Pmt) O-mannosylate secretory proteins in Candida albicans. pmt mutants were differentially defective for biofilm formation on plastic in static and flow-through systems, and a Pmt inhibitor blocked early stages of biofilm formation. Conceptually, Pmt inhibition may prevent...

journal_title：Antimicrobial agents and chemotherapy

authors： Peltroche-Llacsahuanga H,Goyard S,d'Enfert C,Prill SK,Ernst JF

更新日期：2006-10-01 00:00:00

abstract：:Azithromycin concentrations in the tonsils of 56 pediatric patients, treated with 10 or 20 mg of the drug per kg of body weight for 3 days, were compared. Azithromycin levels in plasma and tonsil samples were determined up to 8.5 days after the last dose. The 20-mg/kg regimen resulted in an improved tonsillar distribu...

journal_title：Antimicrobial agents and chemotherapy

authors： Blandizzi C,Malizia T,Batoni G,Ghelardi E,Baschiera F,Bruschini P,Senesi S,Campa M,Del Tacca M

更新日期：2002-05-01 00:00:00

abstract：:MICs of a set of cephalosporins against a variety of gram-positive and gram-negative pathogens showed no strong correlations with the rate at which these inhibitors acylate or are deacylated by beta-lactam-sensitive DD-peptidases excreted by Streptomyces sp. strain R61 and Actinomadura sp. strain R39. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Boyd DB,Ott JL

更新日期：1986-05-01 00:00:00

abstract：:Bloodstream infection (BSI) due to multidrug-resistant Klebsiella is associated with high rates of morbidity and mortality. The aim of this study was to identify predictors of in-hospital mortality among patients with BSI due to ceftazidime-resistant (CAZ-R) Klebsiella pneumoniae at a tertiary care medical center. Pat...

journal_title：Antimicrobial agents and chemotherapy

authors： Anderson DJ,Engemann JJ,Harrell LJ,Carmeli Y,Reller LB,Kaye KS

更新日期：2006-05-01 00:00:00

abstract：:Among 158 Candida glabrata bloodstream isolates collected from numerous centers in China, a resistance to fluconazole was seen in 8.9%. Three isolates (1.9%) were resistant to all echinocandins. Multilocus sequence typing (MLST) revealed that sequence type 7 ([ST7] 65.8%) was the most common type, followed by ST3 (7.6...

journal_title：Antimicrobial agents and chemotherapy

authors： Hou X,Xiao M,Wang H,Yu SY,Zhang G,Zhao Y,Xu YC

更新日期：2018-05-25 00:00:00

abstract：:The aim of the study was to evaluate the penetration of ciprofloxacin into bronchial secretions from mechanically ventilated patients with nosocomial bronchopneumonia. For this purpose, in each patient studied, simultaneous serial blood and bronchial secretion samples were obtained over a 12-h period on days 2 and 4. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Saux P,Martin C,Mallet MN,Papazian L,Bruguerolle B,De Micco P,Gouin F

更新日期：1994-04-01 00:00:00

abstract：:Posaconazole (POS) is a new antifungal agent for prevention and therapy of mycoses in immunocompromised patients. Variable POS pharmacokinetics after oral dosing may influence efficacy: a trough threshold of 0.5 μg/ml has been recently proposed. Measurement of POS plasma concentrations by complex chromatographic techn...

journal_title：Antimicrobial agents and chemotherapy

authors： Rochat B,Pascual A,Pesse B,Lamoth F,Sanglard D,Decosterd LA,Bille J,Marchetti O

更新日期：2010-12-01 00:00:00

abstract：:The in vitro interaction between triclosan and fluconazole against 24 azole-resistant clinical isolates of Candida albicans was evaluated by the microdilution checkerboard technique. The synergisms were verified by time-killing curves and agar diffusion tests in selected strains. Antagonistic activity was not detected...

journal_title：Antimicrobial agents and chemotherapy

authors： Yu L,Ling G,Deng X,Jin J,Jin Q,Guo N

更新日期：2011-07-01 00:00:00

abstract：:Routine in vitro screening of a new synthetic series of 3,5-substituted 2-methylisoxazolidines revealed that three imidazole analogs (PR 967-248, PR 967-234, and PR 969-566) and, to a lesser extent, a triazole analog (PR 988-399) exerted rather potent antifungal activity against three systemic and four dermatophytic c...

journal_title：Antimicrobial agents and chemotherapy

authors： Palmer GC,Ordy MJ,Simmons RD,Strand JC,Radov LA,Mullen GB,Kinsolving CR,St Georgiev V,Mitchell JT,Allen SD

更新日期：1989-06-01 00:00:00

abstract：:The susceptibilities of a range of gram-positive and gram-negative microbial pathogens to clofazimine and its analog B669 (0.1 to 32 micrograms/ml), as well as the effects of these agents on membrane phospholipid metabolism in Staphylococcus aureus and Escherichia coli, have been investigated in vitro. Gram-positive b...

journal_title：Antimicrobial agents and chemotherapy

authors： Van Rensburg CE,Jooné GK,O'Sullivan JF,Anderson R

更新日期：1992-12-01 00:00:00

abstract：:ST-246, a novel compound that inhibits egress of orthopoxvirus from infected cells, is being evaluated as a treatment for pathogenic orthopoxvirus infections in humans. This phase I, double-blind, randomized, placebo-controlled, escalating multiple-dose study was conducted to determine the safety, tolerability, and ph...

journal_title：Antimicrobial agents and chemotherapy

authors： Jordan R,Chinsangaram J,Bolken TC,Tyavanagimatt SR,Tien D,Jones KF,Frimm A,Corrado ML,Pickens M,Landis P,Clarke J,Marbury TC,Hruby DE

更新日期：2010-06-01 00:00:00

abstract：:Candida albicans readily forms biofilms on the surface on indwelling medical devices, and these biofilms serve as a source of local and systemic infections. It is estimated that 27% of nosocomial C. albicans bloodstream infections are polymicrobial, with Staphylococcus aureus as the third most common organism isolated...

journal_title：Antimicrobial agents and chemotherapy

authors： Harriott MM,Noverr MC

更新日期：2009-09-01 00:00:00

abstract：:Iron-sulfur flavoproteins (Isf) are flavin mononucleotide (FMN)- and FeS cluster-containing proteins commonly encountered in anaerobic prokaryotes. However, with the exception of Isf from Methanosarcina thermophila, which participates in oxidative stress management by removing oxygen and hydrogen peroxide, none of the...

journal_title：Antimicrobial agents and chemotherapy

authors： Smutná T,Pilarová K,Tarábek J,Tachezy J,Hrdý I

更新日期：2014-06-01 00:00:00

abstract：:The potent antiretroviral pyrimidinediones IQP-0528 (PYD1) and IQP-0532 (PYD2) were formulated in polyurethane intravaginal rings (IVRs) as prophylactic drug delivery systems to prevent the sexual transmission of HIV-1. To aid in the selection of a pyrimidinedione candidate and the optimal loading of the drug in the I...

journal_title：Antimicrobial agents and chemotherapy

authors： Johnson TJ,Srinivasan P,Albright TH,Watson-Buckheit K,Rabe L,Martin A,Pau CP,Hendry RM,Otten R,McNicholl J,Buckheit R Jr,Smith J,Kiser PF

更新日期：2012-03-01 00:00:00

abstract：:Imipenem-cilastatin concentrations in bile were measured in 12 cholecystectomy patients (group 1) and 12 patients with common duct drainage (group 2). Six patients in each group received 0.5 g, and six received 1.0 g intravenously over 30 to 60 min. In group 1, bile was collected a mean of 85 min postinfusion. The mea...

journal_title：Antimicrobial agents and chemotherapy

authors： Graziani AL,Gibson GA,MacGregor RR

更新日期：1987-11-01 00:00:00

abstract：:Clarithromycin is compared with clindamycin for single-dose prophylaxis of streptococcal endocarditis in rats. Human-like kinetics of the two antibiotics prevented endocarditis in animals challenged with both small and large amounts of bacterial inocula. Clarithromycin was marginally superior to clindamycin against sm...

journal_title：Antimicrobial agents and chemotherapy

authors： Vermot D,Entenza JM,Vouillamoz J,Glauser MP,Moreillon P

更新日期：1996-03-01 00:00:00