Variety of beta-lactamases produced by amoxicillin-clavulanate-resistant Escherichia coli isolated in the northeastern United States.

abstract：:GES-1 is a class A extended-spectrum β-lactamase conferring resistance to penicillins, narrow- and expanded-spectrum cephalosporins, and ceftazidime. However, GES-1 poorly hydrolyzes aztreonam and cephamycins and exhibits very low k(cat) values for carbapenems. Twenty-two GES variants have been discovered thus far, di...

journal_title：Antimicrobial agents and chemotherapy

authors： Delbrück H,Bogaerts P,Kupper MB,Rezende de Castro R,Bennink S,Glupczynski Y,Galleni M,Hoffmann KM,Bebrone C

更新日期：2012-11-01 00:00:00

abstract：:Single amino acid substitutions in the Ω loop of KPC β-lactamases are known to lead to resistance to the ceftazidime-avibactam combination. Here, we investigate this mechanism of resistance in CTX-M enzymes, which are the most widely spread extended-spectrum β-lactamases worldwide. Nine single amino acid polymorphisms...

journal_title：Antimicrobial agents and chemotherapy

authors： Compain F,Dorchène D,Arthur M

更新日期：2018-08-27 00:00:00

abstract：:The radical-based theory proposes that three major classes of bactericidal antibiotics, i.e., β-lactams, quinolones, and aminoglycosides, have in common the downstream formation of lethal levels of reactive oxygen species (ROS) as part of the killing mechanism. If bactericidal antibiotics exhibit a common mechanism, t...

journal_title：Antimicrobial agents and chemotherapy

authors： Hoeksema M,Brul S,Ter Kuile BH

更新日期：2018-05-25 00:00:00

abstract：:The mechanisms of herpes simplex virus (HSV) inactivation by sodium lauryl sulfate (SLS) and n-lauroylsarcosine (LS), two anionic surfactants with protein denaturant potency, have been evaluated in cultured cells. Results showed that pretreatment of HSV type 1 (HSV-1) strain F and HSV-2 strain 333 with either surfacta...

journal_title：Antimicrobial agents and chemotherapy

authors： Piret J,Roy S,Gagnon M,Landry S,Désormeaux A,Omar RF,Bergeron MG

更新日期：2002-09-01 00:00:00

abstract：:The aim of this analysis was to identify therapeutic micafungin regimens for children that produce the same micafungin exposures known to be effective for the prevention and treatment of Candida infections in adults. Pediatric pharmacokinetic data from 229 patients between the ages of 4 months and <17 years were obtai...

journal_title：Antimicrobial agents and chemotherapy

authors： Hope WW,Kaibara A,Roy M,Arrieta A,Azie N,Kovanda LL,Benjamin DK Jr

更新日期：2015-02-01 00:00:00

abstract：:Acute pulmonary exacerbations (APE) involving Pseudomonas aeruginosa are associated with increased morbidity and mortality in cystic fibrosis (CF) patients. Drug resistance is a significant challenge to treatment. Ceftazidime-avibactam (CZA) demonstrates excellent in vitro activity against isolates recovered from CF p...

journal_title：Antimicrobial agents and chemotherapy

authors： Bensman TJ,Wang J,Jayne J,Fukushima L,Rao AP,D'Argenio DZ,Beringer PM

更新日期：2017-09-22 00:00:00

abstract：:Trypanosomiasis remains a significant disease across the sub-Saharan African continent, with 50,000 to 70,000 individuals infected. The utility of current therapies is limited by issues of toxicity and the need to administer compounds intravenously. We have begun a program to pursue lead optimization around MDL 73811,...

journal_title：Antimicrobial agents and chemotherapy

authors： Barker RH Jr,Liu H,Hirth B,Celatka CA,Fitzpatrick R,Xiang Y,Willert EK,Phillips MA,Kaiser M,Bacchi CJ,Rodriguez A,Yarlett N,Klinger JD,Sybertz E

更新日期：2009-05-01 00:00:00

abstract：:Whole and fractionated latex of Asclepias syriaca was tested for antimicrobial or growth-promoting activity with 16 genera and species of bacteria. Latex and extracted fractions (distilled water, acetic acid, sodium bicarbonate, sulfuric acid, and ethyl ether) possessed no detectable antimicrobial activity. Comparison...

journal_title：Antimicrobial agents and chemotherapy

authors： McCay S,Mahlberg P

更新日期：1973-02-01 00:00:00

abstract：:Phosphonoformate (PF) at a concentration of 5 to 10 mug/ml inhibited the growth of type 1 strains of herpes simplex virus (HSV) in tissue culture, whereas 20 to 30 mug/ml was required for inhibition of type 2 strains and about 50 mug/ml was required for murine cytomegalovirus. In mice inoculated intraperitoneally or i...

journal_title：Antimicrobial agents and chemotherapy

authors： Kern ER,Glasgow LA,Overall JC Jr,Reno JM,Boezi JA

更新日期：1978-12-01 00:00:00

abstract：:The linkage between the macrolide efflux gene mef(I) and the chloramphenicol inactivation gene catQ was first described in Streptococcus pneumoniae (strain Spn529), where the two genes are located in a module designated IQ element. Subsequently, two different defective IQ elements were detected in Streptococcus pyogen...

journal_title：Antimicrobial agents and chemotherapy

authors： Mingoia M,Morici E,Morroni G,Giovanetti E,Del Grosso M,Pantosti A,Varaldo PE

更新日期：2014-10-01 00:00:00

abstract：:Quadruple mutations in the Plasmodium falciparum dihydrofolate reductase (PFDHFR) enzyme give rise to the highest level of pyrimethamine resistance leading to treatment failures. We describe here the presence of these quadruple mutations in a majority of P. falciparum isolates from Car Nicobar (Andaman and Nicobar) Is...

journal_title：Antimicrobial agents and chemotherapy

authors： Ahmed A,Das MK,Dev V,Saifi MA,Wajihullah,Sharma YD

更新日期：2006-04-01 00:00:00

abstract：:Exposure of any of six clinical isolates of Staphylococcus aureus to daptomycin alone or in combination with vancomycin or oxacillin (compared with vancomycin or oxacillin alone) led to a dampened macrophage inflammatory response with diminished tumor necrosis factor secretion and reduced accumulation of inducible nit...

journal_title：Antimicrobial agents and chemotherapy

authors： English BK,Maryniw EM,Talati AJ,Meals EA

更新日期：2006-06-01 00:00:00

abstract：:WCK 5222 consists of cefepime combined with zidebactam, a bicyclo-acyl hydrazide β-lactam enhancer antibiotic with a dual action involving binding to Gram-negative bacterial PBP2 and β-lactamase inhibition. We evaluated the in vitro activity of cefepime-zidebactam against 7,876 contemporary (2015) clinical isolates of...

journal_title：Antimicrobial agents and chemotherapy

authors： Sader HS,Castanheira M,Huband M,Jones RN,Flamm RK

更新日期：2017-04-24 00:00:00

abstract：:The in vivo activity of human immunoglobulin M monoclonal antibody IN-2A8, which is specific for flagellum type b of Pseudomonas aeruginosa, was evaluated in comparison to anti-O antigen (serotype B) MAb KO-2F2 and in combination with antibiotics. IN-2A8 showed stronger activity than KO-2F2 against subcutaneous infect...

journal_title：Antimicrobial agents and chemotherapy

authors： Uezumi I,Terashima M,Kohzuki T,Kato M,Irie K,Ochi H,Noguchi H

更新日期：1992-06-01 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：:Polymorphisms and the overexpression of transporter genes, especially of the ATP-binding cassette superfamily, have been involved in antimalarial drug resistance. The objective of this study was to use 77 Senegalese Plasmodium falciparum isolates to evaluate the association between the number of Asn residues in the po...

journal_title：Antimicrobial agents and chemotherapy

authors： Gendrot M,Diawara S,Madamet M,Kounta MB,Briolant S,Wade KA,Fall M,Benoit N,Nakoulima A,Amalvict R,Diémé Y,Fall B,Wade B,Diatta B,Pradines B

更新日期：2017-02-23 00:00:00

abstract：:Determinants encoding resistance to antibiotics, except penicillin, of 5 of 21 Streptococcus anginosus clinical isolates that we examined transferred by conjugation into Enterococcus faecalis and into 1 to 5 streptococcal recipients at frequencies of 10(-6) to 10(-8) transconjugants per donor. No R plasmids were detec...

journal_title：Antimicrobial agents and chemotherapy

authors： Clermont D,Horaud T

更新日期：1990-09-01 00:00:00

abstract：:Topical administration of live commensal bacteria to the vaginal tract holds significant potential as a cost-effective strategy for the treatment of sexually transmitted infections and the delivery of mucosal vaccines. Probiotic-releasing intravaginal rings (IVRs) embody significant theoretical advantages over traditi...

journal_title：Antimicrobial agents and chemotherapy

authors： Gunawardana M,Mullen M,Yoo J,Webster P,Moss JA,Baum MM

更新日期：2014-01-01 00:00:00

abstract：:We assessed cutaneous ethanol (ETOH) and isopropanol (ISOP) absorption after intensive (30 times per h) use of alcohol-based hand-rub solutions by healthcare workers (HCWs). ETOH was detectable in the breath of 6/20 HCWs (0.001 to 0.0025%) at 1 to 2 min postexposure and in the serum of 2/20 HCWs at 5 to 7 min postexpo...

journal_title：Antimicrobial agents and chemotherapy

authors： Brown TL,Gamon S,Tester P,Martin R,Hosking K,Bowkett GC,Gerostamoulos D,Grayson ML

更新日期：2007-03-01 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：:Two group F vibrio organisms have been identified among a collection of vibrio strains isolated from the aquatic environment in Bangladesh. Neither group F strain produced a cholera-like enterotoxin. One of the isolates, BV12, contained an R plasmid conferring resistance to streptomycin and chloramphenicol. ...

journal_title：Antimicrobial agents and chemotherapy

authors： McNicol LA,Kaper JB,Lockman HA,Remmers EF,Spira WM,Colwell RR

更新日期：1980-03-01 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：: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：:Leukocyte chemotaxis was inhibited 9.6% compared with control in the presence of 10 mug of gentamicin per ml and 10.5% when exposed to 20 mug of amikacin per ml. However, cells incubated with an injectable form of gentamicin, containing preservatives, were inhibited an additional 25.8% relative to cells incubated with...

journal_title：Antimicrobial agents and chemotherapy

authors： Goodhart GL

更新日期：1977-10-01 00:00:00

abstract：:In order to probe the structure and function of the mycobacterial catalase-peroxidase enzyme (KatG), we employed a genetic approach using dominant-negative analysis of katG merodiploids. Transformation of Mycobacterium bovis BCG with various katG point mutants (expressed from low-copy-number plasmids) resulted in redu...

journal_title：Antimicrobial agents and chemotherapy

authors： DeVito JA,Morris S

更新日期：2003-01-01 00:00:00

abstract：:Mutants with multiple low-level antibiotic resistance were isolated from virulent wild-type Aeromonas salmonicida strains exposed to a low concentration of any one of several low-molecular-mass (approximately 635 daltons or less) antibiotics. Multiple resistance was toward beta-lactam compounds (penicillin G, ampicill...

journal_title：Antimicrobial agents and chemotherapy

authors： Wood SC,McCashion RN,Lynch WH

更新日期：1986-06-01 00:00:00

abstract：:A two-compartment pharmacokinetic (PK) population model of anidulafungin was fitted to PK data from 23 critically ill patients (age, 65 years [range, 28 to 81 years]; total body weight [TBW], 75 kg [range, 54 to 168 kg]). TBW was associated with clearance and incorporated into a final population PK model. Simulations ...

journal_title：Antimicrobial agents and chemotherapy

authors： Luque S,Hope W,Campillo N,Muñoz-Bermúdez R,Sorli L,Barceló-Vidal J,González-Colominas E,Alvarez-Lerma F,Masclans JR,Montero M,Horcajada JP,Grau S

更新日期：2019-06-24 00:00:00

abstract：:Despite the availability of >30 effective drugs for managing HIV-1 infection, no current therapy is curative, and long-term management is challenging owing to the emergence and spread of drug-resistant mutants. Identification of drugs against novel HIV-1 targets would expand the current treatment options and help to c...

journal_title：Antimicrobial agents and chemotherapy

authors： Halambage UD,Wong JP,Melancon BJ,Lindsley CW,Aiken C

更新日期：2015-09-01 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：:Pretomanid was approved by the U.S. FDA, via the limited population pathway for antibacterial and antifungal drugs, as part of a three-drug regimen with bedaquiline and linezolid for the treatment of extensively drug-resistant and treatment-intolerant or nonresponsive multidrug-resistant tuberculosis. The recommended ...

journal_title：Antimicrobial agents and chemotherapy

authors： Nedelman JR,Salinger DH,Subramoney V,Woolson R,Wade K,Li M,Everitt D,Mendel CM,Spigelman M

更新日期：2020-12-16 00:00:00