Acquired gentamicin resistance by permeability impairment in Enterococcus faecalis.

abstract：:Amphotericin B (AMB) has been a mainstay therapy for fungal infections of the central nervous system, but its use has been limited by its poor penetration into the brain, the mechanism of which remains unclear. In this study, we aimed to investigate the role of P-glycoprotein (P-gp) in AMB crossing the blood-brain bar...

journal_title：Antimicrobial agents and chemotherapy

authors： Wu JQ,Shao K,Wang X,Wang RY,Cao YH,Yu YQ,Lou JN,Chen YQ,Zhao HZ,Zhang QQ,Weng XH,Jiang C,Zhu LP

更新日期：2014-08-01 00:00:00

abstract：:Data comparing the treatment outcomes of the two most frequently recommended empirical antibiotic regimens for community-acquired pneumonia (CAP)--combination therapy with an extended-spectrum beta-lactam and a macrolide (BL+M) or fluoroquinolone (F) monotherapy--for patients with severe CAP are sparse. The purpose of...

journal_title：Antimicrobial agents and chemotherapy

authors： Lodise TP,Kwa A,Cosler L,Gupta R,Smith RP

更新日期：2007-11-01 00:00:00

abstract：:The time course of plasma drug levels and urinary recovery for two lipopeptide antifungal antibiotics, L-671,329 and cilofungin, were measured in male rhesus monkeys (Macaca mulatta) and in female DBA/2 mice. The antibiotics were administered intravenously at 10 mg/kg of body weight in phosphate-buffered saline-26% po...

journal_title：Antimicrobial agents and chemotherapy

authors： Sundelof JG,Hajdu R,Cleare WJ,Onishi J,Kropp H

更新日期：1992-03-01 00:00:00

abstract：:Transferability of drug resistance in strains of Bordetella bronchiseptica isolated from pigs was examined. These strains were resistant to sulfadimethoxine (SA, more than 1,600 mug/ml), streptomycin (SM, more than 800 mug/ml), and aminobenzyl penicillin (APC, 200 mug/ml). All of them could transfer their drug resista...

journal_title：Antimicrobial agents and chemotherapy

authors： Terakado N,Azechi H,Ninomiya K,Shimizu T

更新日期：1973-05-01 00:00:00

abstract：:Twenty-four children with cancer and localized herpes zoster were randomized to receive either topical polyinosinic acid-polycytidylic acid [poly(I:C)] or a saline placebo. Solutions containing 1.0 or 2.5 mg of drug per ml were applied to the lesions every 3 h, seven times a day for 7 consecutive days. Serial, standar...

journal_title：Antimicrobial agents and chemotherapy

authors： Feldman S,Hughes WT,Darlington RW,Kim HK

更新日期：1975-09-01 00:00:00

abstract：:The kinetics of the lethal action of metronidazole and the formation of acetamide have been studied in a strain of Bacteroides fragilis which is relatively resistant to metronidazole. As with a susceptible strain of B. fragilis, the data are consistent with a model in which a labile intermediate in metronidazole metab...

journal_title：Antimicrobial agents and chemotherapy

authors： McLafferty MA,Koch RL,Goldman P

更新日期：1982-01-01 00:00:00

abstract：:Approximately 39% of methicillin-resistant Staphylococcus aureus (MRSA) sequence type 239 (ST239)-like bloodstream isolates from Liverpool Hospital (obtained between 1997 and 2008) carry an arginine catabolic mobile element (ACME). Whole-genome sequencing revealed that an ACME II variant is located between orfX and SC...

journal_title：Antimicrobial agents and chemotherapy

authors： Espedido BA,Steen JA,Barbagiannakos T,Mercer J,Paterson DL,Grimmond SM,Cooper MA,Gosbell IB,van Hal SJ,Jensen SO

更新日期：2012-06-01 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：:We designed, synthesized, and characterized a novel nucleoside analog, (1S,3S,5S)-3-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)-5-hydroxy-1-(hydroxymethyl)-2-methylene-cyclopentanecarbonitrile, or 4'-cyano-methylenecarbocyclic-2'-deoxyguanosine (CMCdG), and evaluated its anti-hepatitis B virus (anti-HBV) activity, safet...

journal_title：Antimicrobial agents and chemotherapy

authors： Higashi-Kuwata N,Hayashi S,Das D,Kohgo S,Murakami S,Hattori SI,Imoto S,Venzon DJ,Singh K,Sarafianos SG,Tanaka Y,Mitsuya H

更新日期：2019-03-27 00:00:00

abstract：:Macrolactin A (MA) and 7-O-succinyl macrolactin A (SMA), polyene macrolides containing a 24-membered lactone ring, show antibiotic effects superior to those of teicoplanin against vancomycin-resistant enterococci and methicillin-resistant Staphylococcus aureus. MA and SMA are currently being evaluated as antitumor age...

journal_title：Antimicrobial agents and chemotherapy

authors： Bae SH,Kwon MJ,Park JB,Kim D,Kim DH,Kang JS,Kim CG,Oh E,Bae SK

更新日期：2014-09-01 00:00:00

abstract：:The antifungal activities of amphotericin B and two triazoles, Sch 39304 and fluconazole, were tested against Histoplasma capsulatum. In this study Sch 39304 compared favorably with amphotericin B in treating histoplasmosis in normal and leukopenic mice, whereas fluconazole was much less active. The differences in the...

journal_title：Antimicrobial agents and chemotherapy

authors： Kobayashi GS,Travis SJ,Rinaldi MG,Medoff G

更新日期：1990-04-01 00:00:00

abstract：:The Capnocytophaga sputigena isolate NOR, responsible for septicemia, was resistant to amoxicillin and narrow-spectrum cephalosporins. In a cloning experiment, a new gene, bla(CSP-1), was identified; this gene encodes a novel extended-spectrum beta-lactamase (ESBL) that shares only 52% and 49% identities with the CME-...

journal_title：Antimicrobial agents and chemotherapy

authors： Guillon H,Eb F,Mammeri H

更新日期：2010-05-01 00:00:00

abstract：:A multi-center study of 1,838 clinical isolates established the accuracy of diffusion susceptibility tests with 30-mug cephalothin disks and 30-mug cefamandole disks. The same interpretive zone standards can be applied to tests with either disk but the two drugs cannot be tested interchangeably. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Barry AL,Schoenknecht FD,Shadomy S,Sherris JC,Thornsberry C,Washington JA,Kammer RB

更新日期：1979-01-01 00:00:00

abstract：:The effects of sub-MICs of certain antibiotics, namely, penicillin G, tetracycline, and trimethoprim-sulfamethoxazole, on the cell surface characteristics and the virulences of two toxigenic isolates of Pasteurella multocida representing capsular types A and D were evaluated. Expression of proteins, in particular, out...

journal_title：Antimicrobial agents and chemotherapy

authors： Lebrun A,Caya M,Jacques M

更新日期：1992-10-01 00:00:00

abstract：:Retrospective analysis of 189 nonredundant strains of Pseudomonas aeruginosa sequentially recovered from the sputum samples of 46 cystic fibrosis (CF) patients over a 10-year period (1998 to 2007) revealed that 53 out of 189 (28%) samples were hypersusceptible to the beta-lactam antibiotic ticarcillin (MIC < or = 4 mi...

journal_title：Antimicrobial agents and chemotherapy

authors： Vettoretti L,Plésiat P,Muller C,El Garch F,Phan G,Attrée I,Ducruix A,Llanes C

更新日期：2009-05-01 00:00:00

abstract：:No studies have investigated whether discontinuation of ethambutol (EMB) based on the susceptibility to isoniazid and rifampin as determined by the GenoType MTBDRplus assay would be appropriate. We aimed to determine the feasibility of discontinuing EMB before the end of intensive phase treatment based on the result o...

journal_title：Antimicrobial agents and chemotherapy

authors： Jo KW,Kim M,Kim YJ,Lee HK,Kim HK,Jeon D,Lyu J,Park HK,Mok J,Kim JS,Heo EY,Choi SB,Yim JJ,Shim TS

更新日期：2019-09-16 00:00:00

abstract：:Numerous antibiotics have proven to be effective at ameliorating the clinical symptoms of urinary tract infections (UTIs), but recurrent and chronic infections continue to plague many individuals. Most UTIs are caused by strains of uropathogenic Escherichia coli (UPEC), which can form both extra- and intracellular bio...

journal_title：Antimicrobial agents and chemotherapy

authors： Blango MG,Mulvey MA

更新日期：2010-05-01 00:00:00

abstract：:Malaria and trypanosomiasis are diseases which afflict millions and for which novel therapies are urgently required. We have tested two well-characterized cell-penetrating peptides (CPPs) for antiparasitic activity. One CPP, designated TP10, has broad-spectrum antiparasitic activity against Plasmodium falciparum, both...

journal_title：Antimicrobial agents and chemotherapy

authors： Arrighi RB,Ebikeme C,Jiang Y,Ranford-Cartwright L,Barrett MP,Langel U,Faye I

更新日期：2008-09-01 00:00:00

abstract：:The purpose of this study was to compare the activity of HMR 1043 with those of daptomycin and teicoplanin against gram-positive isolates. Susceptibility tests were performed for 52 strains, 26 parental strains, including staphylococcal, streptococcal, enterococcal, and listerial strains, and 26 HMR 1043-resistant mut...

journal_title：Antimicrobial agents and chemotherapy

authors： Bemer P,Juvin ME,Bryskier A,Drugeon H

更新日期：2003-09-01 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：: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：:Structural analysis of two new beta-lactam antibiotics, A16884A and A16886B, indicated that they, like cephalosporin C, were composed of modified valine and cysteine residues, and alpha-aminoadipic acid. However, acid hydrolysis of A16886B and A16884A produced three times as much glycine as did hydrolysis of cephalosp...

journal_title：Antimicrobial agents and chemotherapy

authors： Brannon DR,Mabe JA,Ellis R,Whitney JG,Nagarajan R

更新日期：1972-03-01 00:00:00

abstract：:Nonreplicating bacteria are known to be (or at least commonly thought to be) refractory to antibiotics to which they are genetically susceptible. Here, we explore the sensitivity to killing by bactericidal antibiotics of three classes of nonreplicating populations of planktonic bacteria: (i) stationary phase, when the...

journal_title：Antimicrobial agents and chemotherapy

authors： McCall IC,Shah N,Govindan A,Baquero F,Levin BR

更新日期：2019-06-24 00:00:00

abstract：:Polymyxin B nonapeptide, derived by cleavage of the fatty acyl diaminobutyric acid from polymyxin B, is considerably less toxic, lacks bactericidal activity, and retains its ability to render gram-negative bacteria susceptible to several antibiotics by permeabilizing their outer membranes. The peptide rendered all 53 ...

journal_title：Antimicrobial agents and chemotherapy

authors： Ofek I,Cohen S,Rahmani R,Kabha K,Tamarkin D,Herzig Y,Rubinstein E

更新日期：1994-02-01 00:00:00

abstract：:Antimicrobial efficacy in orthopedic device infections is diminished because of bacterial biofilms which express tolerance to antibiotics. Recently, the use of high doses of levofloxacin with rifampin has been recommended for staphylococcal infections. In the present study, we evaluated the efficacy of levofloxacin at...

journal_title：Antimicrobial agents and chemotherapy

authors： Murillo O,Doménech A,Garcia A,Tubau F,Cabellos C,Gudiol F,Ariza J

更新日期：2006-12-01 00:00:00

abstract：:The pharmacokinetics of cefprozil were determined with 12 volunteers (8 received cefprozil and 4 received a placebo) after oral administration of 500 mg every 12 h over an 8-day period in a randomized, double-blind, placebo-controlled design. Concentrations in serum and urine were measured by high-pressure liquid chro...

journal_title：Antimicrobial agents and chemotherapy

authors： Lode H,Müller C,Borner K,Nord CE,Koeppe P

更新日期：1992-01-01 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：:beta-Lactamases produced by urine isolates from patients in long-term care facilities (LTCFs), outpatient, clinics, and one hospital in a U.S. community were characterized. A total of 1.3% of all Escherichia coli and Klebsiella pneumoniae isolates collected from patients in 30 LTCFs and various outpatient clinics prod...

journal_title：Antimicrobial agents and chemotherapy

authors： Hanson ND,Moland ES,Hong SG,Propst K,Novak DJ,Cavalieri SJ

更新日期：2008-10-01 00:00:00

abstract：:The antibacterial drug nalidixic acid (Nal) can suppress the growth of Candida albicans at levels of the drug normally found in urine. Growth suppression increases as drug levels are increased, and Nal also causes a similar proportional inhibition of the synthesis of all cellular macromolecules. However, growth temper...

journal_title：Antimicrobial agents and chemotherapy

authors： Sobieski RJ,Brewer AR

更新日期：1976-03-01 00:00:00

abstract：:Approximately 150,000 small-molecule compounds were tested by a robotic screening assay for their ability to inhibit nucleoside triphosphate hydrolase (NTPase), a novel enzyme of the tachyzoite form of Toxoplasma gondii. Five unrelated species of compounds were found to inhibit the activities of both NTPase isoforms (...

journal_title：Antimicrobial agents and chemotherapy

authors： Asai T,Takeuchi T,Diffenderfer J,Sibley LD

更新日期：2002-08-01 00:00:00