ADP-ribosylation as an intermediate step in inactivation of rifampin by a mycobacterial gene.

abstract：:A few international pneumococcal clones dominate the population of antibiotic-resistant pneumococci. Despite the scientific paradigm that a loss in fitness is the price for acquisition of resistance, these clones spread successfully. One hundred fifty-four isolates from adult patients with community-acquired pneumonia...

journal_title：Antimicrobial agents and chemotherapy

authors： Rudolf D,Michaylov N,van der Linden M,Hoy L,Klugman KP,Welte T,Pletz MW,CAPNETZ Study Group.

更新日期：2011-10-01 00:00:00

abstract：:By means of a stepwise selection procedure, mutants capable of growing in the presence of relatively high multiplicities of a bacteriocin from Streptococcus mutans GS-5 were obtained from a sensitivie strain of Streptococcus pyogenes. Mutacin-neutralizing activity of cell extracts containing receptor protein was exami...

journal_title：Antimicrobial agents and chemotherapy

authors： Franker CK

更新日期：1980-02-01 00:00:00

abstract：:The post-β-lactamase-inhibitor effect (PBLIE) of tazobactam combined with ceftolozane was evaluated by time-kill assays on two clinical Escherichia coli strains producing CTX-M-15 with or without TEM-1. The organisms were exposed (2 h) to 4 μg/ml/4 μg/ml of ceftolozane-tazobactam (4× MIC), 4 μg/ml of ceftolozane, and ...

journal_title：Antimicrobial agents and chemotherapy

authors： Sader HS,Rhomberg PR,Jones RN

更新日期：2014-01-01 00:00:00

abstract：:The antimicrobial activity of CP-62,993 against four Chlamydia trachomatis isolates was compared with those of erythromycin, clindamycin, and tetracycline. The MIC of CP-62,993 was 0.26 to 1.02 micrograms/ml for 100% inclusion inhibition and 0.031 to 0.063 microgram/ml for 50% inclusion inhibition. With pharmacokineti...

journal_title：Antimicrobial agents and chemotherapy

authors： Walsh M,Kappus EW,Quinn TC

更新日期：1987-05-01 00:00:00

abstract：:In order to study the mechanism of insusceptibility of Spiroplasma citri to rifampin, we have cloned and sequenced its rpoB gene, which encodes the beta subunit of RNA polymerase. By comparison of the deduced amino acid sequence with sequences of beta subunits from susceptible and resistant bacteria, it was possible t...

journal_title：Antimicrobial agents and chemotherapy

authors： Gaurivaud P,Laigret F,Bove JM

更新日期：1996-04-01 00:00:00

abstract：:The in vitro activity of tebipenem (TBM), a new oral carbapenem antibiotic, against Streptococcus pneumoniae clinical isolates (n = 202) was compared with those of 15 reference agents. The isolates were classified into five genotypic classes after PCR identification of abnormal pbp1a, pbp2x, and pbp2b genes: (i) penic...

journal_title：Antimicrobial agents and chemotherapy

authors： Kobayashi R,Konomi M,Hasegawa K,Morozumi M,Sunakawa K,Ubukata K

更新日期：2005-03-01 00:00:00

abstract：:A portion of the Mycobacterium tuberculosis gene encoding the beta subunit of RNA polymerase (rpoB) was amplified by PCR using degenerate oligonucleotides and used as a hybridization probe to isolate plasmid clones carrying the entire rpoB gene of M. tuberculosis H37Rv, a virulent, rifampin-susceptible strain. Sequenc...

journal_title：Antimicrobial agents and chemotherapy

authors： Miller LP,Crawford JT,Shinnick TM

更新日期：1994-04-01 00:00:00

abstract：:Sporangiomycin and micrococcin inhibit the binding of aminoacyl-transfer ribonucleic acid into the ribosomal A site in intact bacterial protoplasts. They also prevent the assembly of [ribosome-elongation factor G-guanine nucleotide] complexes in vitro and compete with [(35)S]thiostrepton for ribosomal binding sites. W...

journal_title：Antimicrobial agents and chemotherapy

authors： Cundliffe E,Dixon PD

更新日期：1975-07-01 00:00:00

abstract：:Meningococcal gyrA gene sequence data, MICs, and mouse infection were used to define the ciprofloxacin breakpoint for Neisseria meningitidis. Residue T91 or D95 of GyrA was altered in all meningococcal isolates with MICs of ≥ 0.064 μg/ml but not among isolates with MICs of ≤ 0.032 μg/ml. Experimental infection of cipr...

journal_title：Antimicrobial agents and chemotherapy

authors： Hong E,Thulin Hedberg S,Abad R,Fazio C,Enríquez R,Deghmane AE,Jolley KA,Stefanelli P,Unemo M,Vazquez JA,Veyrier FJ,Taha MK

更新日期：2013-04-01 00:00:00

abstract：:Clindamycin was given intravenously to 15 patients undergoing colorectal surgery in an initial dose of 600 mg, given at induction of anesthesia followed by 6 doses of 600 mg at 8-h intervals. Series of serum samples and fecal specimens were taken for analysis of clindamycin concentrations. Tissue samples from the gut ...

journal_title：Antimicrobial agents and chemotherapy

authors： Kager L,Liljeqvist L,Malmborg AS,Nord CE

更新日期：1981-12-01 00:00:00

abstract：:Using the techniques of gap misrepair mutagenesis and site-directed mutagenesis, we have generated two novel quinolone resistance mutations of the Escherichia coli DNA gyrase A protein. DNA sequencing showed these mutations to be Ser-83----Ala and Gln-106----Arg. The mutant proteins were overproduced and purified, and...

journal_title：Antimicrobial agents and chemotherapy

authors： Hallett P,Maxwell A

更新日期：1991-02-01 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：: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：:Biofilm formation is an important virulence factor that allows bacteria to resist host responses and antibacterial agents. The aim of the study was to assess the in vitro activities of several antimicrobials alone or in combination against two Staphylococcus aureus isolates in a novel pharmacokinetic/pharmacodynamic (...

journal_title：Antimicrobial agents and chemotherapy

authors： Parra-Ruiz J,Vidaillac C,Rose WE,Rybak MJ

更新日期：2010-10-01 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：:Compounds in a series of cholic acid derivatives, designed to mimic the activities of polymyxin B and its derivatives, act as both potent antibiotics and effective permeabilizers of the outer membranes of gram-negative bacteria. Some of these compounds rival polymyxin B in antibacterial activity against gram-negative ...

journal_title：Antimicrobial agents and chemotherapy

authors： Li C,Lewis MR,Gilbert AB,Noel MD,Scoville DH,Allman GW,Savage PB

更新日期：1999-06-01 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：:This study determined the pharmacokinetic disposition of cefonicid. A single dose of 7.5 mg/kg of body weight was administered to five healthy volunteers as a 5-min intravenous infusion. Multiple plasma and urine samples were collected for 48 h. Peak plasma concentrations ranged from 95 to 156 micrograms/ml and fell s...

journal_title：Antimicrobial agents and chemotherapy

authors： Barriere SL,Hatheway GJ,Gambertoglio JG,Lin ET,Conte JE Jr

更新日期：1982-06-01 00:00:00

abstract：:Tetracycline-resistant isolates of Pasteurella multocida and Pasteurella haemolytica obtained from various locations in the United States and Canada were studied to determine the distribution of the tet(H) gene. Of the 31 isolates examined, 25 were found to contain the tet(H) gene. Chromosomal or plasmid DNA obtained ...

journal_title：Antimicrobial agents and chemotherapy

authors： Hansen LM,Blanchard PC,Hirsh DC

更新日期：1996-06-01 00:00:00

abstract：:A penicillin beta-lactamase (PCase) was extracted from Pseudomonas aeruginosa Rms139(+) and purified by means of column chromatography. The isoelectric point of Rms139 PCase was 5.7 and its molecular weight was 22,500 +/- 1,000. The optimal pH for the hydrolysis of benzylpenicillin was 7.0 to 7.5 and the optimal tempe...

journal_title：Antimicrobial agents and chemotherapy

authors： Sawada Y,Yaginuma S,Tai M,Iyobe S,Mitsuhashi S

更新日期：1976-01-01 00:00:00

abstract：:A clinical study was carried out to establish the influence of aluminum on the oral absorption of ofloxacin. Ten healthy volunteers were included in a crossover study based on a Latin square design. The treatments that all volunteers received were A, consisting of 400 mg of ofloxacin, and B, consisting of 400 mg of of...

journal_title：Antimicrobial agents and chemotherapy

authors： Sánchez Navarro A,Martínez Cabarga M,Dominguez-Gil Hurlé A

更新日期：1994-10-01 00:00:00

abstract：:While it is well-known that adjunctive corticosteroid use improves the outcome of moderate-to-severe Pneumocystis jirovecii pneumonia (PcP) in patients with human immunodeficiency virus (HIV), there are limited data on its efficacy in non-HIV-infected patients with PcP. Patients undergoing fiber-optic bronchoscopy wit...

journal_title：Antimicrobial agents and chemotherapy

authors： Moon SM,Kim T,Sung H,Kim MN,Kim SH,Choi SH,Jeong JY,Woo JH,Kim YS,Lee SO

更新日期：2011-10-01 00:00:00

abstract：:Saccharomicins A and B, two new heptadecaglycoside antibiotics, were isolated from the fermentation broth of the rare actinomycete Saccharothrix espanaensis. They represent a novel class of bactericidal antibiotics that are active both in vitro and in vivo against bacteria and yeast (MICs: Staphylococcus aureus, <0.12...

journal_title：Antimicrobial agents and chemotherapy

authors： Singh MP,Petersen PJ,Weiss WJ,Kong F,Greenstein M

更新日期：2000-08-01 00:00:00

abstract：:During a 4-month period in late 1988, we isolated ceftazidime-resistant strains of Klebsiella pneumoniae and other members of the family Enterobacteriaceae from 29 patients at a chronic-care facility in Massachusetts. Ceftazidime resistance resulted from two distinct extended-spectrum beta-lactamases of the TEM type w...

journal_title：Antimicrobial agents and chemotherapy

authors： Rice LB,Willey SH,Papanicolaou GA,Medeiros AA,Eliopoulos GM,Moellering RC Jr,Jacoby GA

更新日期：1990-11-01 00:00:00

abstract：:The ribosome-targeting antimicrobial, spectinomycin (SPC), strongly induced the mexXY genes of the MexXY-OprM multidrug efflux system in Pseudomonas aeruginosa and increased susceptibility to the polycationic antimicrobials polymyxin B and polymyxin E, concomitant with a decrease in expression of the polymyxin resista...

journal_title：Antimicrobial agents and chemotherapy

authors： Poole K,Lau CH,Gilmour C,Hao Y,Lam JS

更新日期：2015-12-01 00:00:00

abstract：:Inhibition of Escherichia coli by isonicotinic acid hydrazide (isoniazid) is a function of the initial cell concentration, concentration of antibiotic, and chemical composition of the medium. An initial concentration of 5 x 10(5) cells/ml in a minimal medium is inhibited by 1 mM isoniazid. The E. coli cells are protec...

journal_title：Antimicrobial agents and chemotherapy

authors： Tritz GJ

更新日期：1974-03-01 00:00:00

abstract：:A global sample of group A streptococci (GAS) revealed > or =80 separate acquisitions of tetracycline resistance. Of 244 clones, 38 and 25% displayed resistance to tetracycline and erythromycin, respectively; a relatively high proportion (15%) were resistant to both classes of drugs. tet(M) displayed a highly signific...

journal_title：Antimicrobial agents and chemotherapy

authors： Ayer V,Tewodros W,Manoharan A,Skariah S,Luo F,Bessen DE

更新日期：2007-05-01 00:00:00

abstract：:beta-Lactamase was purified from a strain of Legionella gormanii. The molecular weight of the purified enzyme was 25,000, and its isoelectric point was 10.5. The enzyme hydrolyzed oxyiminocephalosporins, cephamycins, penicillins, and imipenem. The enzyme activity was inhibited by EDTA, Hg2+, and Cu2+, but not by clavu...

journal_title：Antimicrobial agents and chemotherapy

authors： Fujii T,Sato K,Miyata K,Inoue M,Mitsuhashi S

更新日期：1986-05-01 00:00:00

abstract：:An observational study assessed the longitudinal use of a new line probe assay for the detection of protease mutations. Probe assays for detection of reverse transcriptase (Inno-LiPA HIV-1 RT; Innogenetics) and protease (prototype kit Inno-LiPA HIV Protease; Innogenetics) mutations gave results for 177 of 199 sequenti...

journal_title：Antimicrobial agents and chemotherapy

authors： Servais J,Lambert C,Plesséria JM,Fontaine E,Robert I,Arendt V,Staub T,Hemmer R,Schneider F,Schmit JC

更新日期：2002-06-01 00:00:00

abstract：:Against 198 viridans group streptococci, 25 Streptococcus bovis strains, and 5 Cardiobacterium hominis strains, MICs of DX-619, a des-F(6)-quinolone, were between 0.004 and 0.25 microg/ml. These MICs were lower than those of other quinolones (< or = 0.008 to > 32 microg/ml). Beta-lactam MICs were between < or = 0.008 ...

journal_title：Antimicrobial agents and chemotherapy

authors： Kosowska-Shick K,Smith K,Bogdanovich T,Ednie LM,Jones RN,Appelbaum PC

更新日期：2006-12-01 00:00:00