Mutation of R factors capable of specifying hypersynthesis of penicillinase.

abstract：:In enterobacteria, the ampG gene encodes a transmembrane protein (permease) that transports 1,6-GlcNAc-anhydro-MurNAc and the 1,6-GlcNAc-anhydro-MurNAc peptide from the periplasm to the cytoplasm, which serve as signal molecules for the induction of ampC β-lactamase. The role of AmpG as a transporter is also essential...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhang Y,Bao Q,Gagnon LA,Huletsky A,Oliver A,Jin S,Langaee T

更新日期：2010-11-01 00:00:00

abstract：:The antimicrobial activities of trovafloxacin, moxifloxacin, sanfetrinem, quinupristin-dalfopristin, and 14 other antimicrobial agents against 218 Bacteroides fragilis group strains were determined. A group of 10 imipenem-resistant strains were also tested. Imipenem, meropenem, and sanfetrinem had the lowest MICs of a...

journal_title：Antimicrobial agents and chemotherapy

authors： Betriu C,Gómez M,Palau ML,Sánchez A,Picazo JJ

更新日期：1999-09-01 00:00:00

abstract：:An in vitro tissue culture system consisting of reaggregated embryonic brain cells was used to evaluate the inhibition of herpes simplex type 1 (HSV-1) by several antiviral compounds. The efficacy of acyclovir, vidarabine, bromovinyldeoxyuridine, and 9-(1,3-dihydroxy-2-propoxymethyl) guanine in HSV-1-infected Vero cel...

journal_title：Antimicrobial agents and chemotherapy

authors： Pulliam L,Panitch HS,Baringer JR,Dix RD

更新日期：1986-12-01 00:00:00

abstract：:In this study, susceptibilities were determined for AZD0914, a spiropyrimidinetrione DNA gyrase inhibitor, azithromycin, doxycycline, and levofloxacin against Mycoplasma and Ureaplasma species. The activity of AZD0914 was comparable to that of levofloxacin and doxycycline against Mycoplasma genitalium and Mycoplasma p...

journal_title：Antimicrobial agents and chemotherapy

authors： Waites KB,Crabb DM,Duffy LB,Huband MD

更新日期：2015-01-01 00:00:00

abstract：:Stenotrophomonas maltophilia is increasingly being isolated from the respiratory tract of individuals with cystic fibrosis, and, because of its multidrug-resistant nature, the selection of suitable treatment regimens can be problematical. Etest methodology was used to facilitate MIC and antimicrobial combination testi...

journal_title：Antimicrobial agents and chemotherapy

authors： Milne KE,Gould IM

更新日期：2012-08-01 00:00:00

abstract：:This study determined the phylogenetic groups and virulence factors of 37 Escherichia coli isolates producing types of CTX-M compared with those of 19 isolates producing different types of extended-spectrum beta-lactamases (ESBLs) in a well-defined North American population. Most CTX-M-14 producers (97%) were from phy...

journal_title：Antimicrobial agents and chemotherapy

authors： Pitout JD,Laupland KB,Church DL,Menard ML,Johnson JR

更新日期：2005-11-01 00:00:00

abstract：:We studied the activity of voriconazole against 400 clinical strains of Aspergillus from the pre-voriconazole (1999 to 2002) and post-voriconazole (2003 to 2007) periods. Although the mean MICs of strains from the post-voriconazole period were slightly higher (0.39 versus 0.57 microg/ml; P < 0.001), all strains were s...

journal_title：Antimicrobial agents and chemotherapy

authors： Guinea J,Recio S,Peláez T,Torres-Narbona M,Bouza E

更新日期：2008-09-01 00:00:00

abstract：:The therapeutic effect of intranasally administered enviroxime was tested against naturally occurring common colds. The double-blind evaluation was carried out in Tecumseh, Mich., during a period when rhinoviruses are usually the principal pathogen. Rhinovirus transmission followed the typical pattern during this peri...

journal_title：Antimicrobial agents and chemotherapy

authors： Miller FD,Monto AS,DeLong DC,Exelby A,Bryan ER,Srivastava S

更新日期：1985-01-01 00:00:00

abstract：:We describe the first IMP metallo-beta-lactamase in Aeromonas caviae: IMP-19, which differed from IMP-2 by a single amino acid change (Arg to Ala at position 38). bla(IMP-19) was found within a class 1 integron located on a 35-kb plasmid. This is also the first description of an IMP producer in France. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Neuwirth C,Siebor E,Robin F,Bonnet R

更新日期：2007-12-01 00:00:00

abstract：:We compared the efficacy of combination posaconazole-liposomal amphotericin B (LAmB) therapy to monotherapy with either drug in diabetic ketoacidotic or neutropenic mice with disseminated zygomycosis caused by Rhizopus oryzae. Combination therapy was no better than LAmB alone, and posaconazole monotherapy did not impr...

journal_title：Antimicrobial agents and chemotherapy

authors： Ibrahim AS,Gebremariam T,Schwartz JA,Edwards JE Jr,Spellberg B

更新日期：2009-02-01 00:00:00

abstract：:Morinidazole, a 5-nitroimidazole antimicrobial drug, has been approved for the treatment of amoebiasis, trichomoniasis, and anaerobic bacterial infections in China. It was reported that drug-drug interaction happened after the coadministration of ornidazole, an analog of morinidazole, and rifampin or ketoconazole. The...

journal_title：Antimicrobial agents and chemotherapy

authors： Pang X,Zhang Y,Gao R,Zhong K,Zhong D,Chen X

更新日期：2014-10-01 00:00:00

abstract：:Cefamandole pharmacokinetics were investigated in 24 adult males with stable renal function and creatinine clearances of 0 to 139 ml/min. After intramuscular injection of 1.0 g of cefamandole, peak plasma concentrations were achieved between 1 and 2 h. Maximum plasma concentration and drug half-life increased as creat...

journal_title：Antimicrobial agents and chemotherapy

authors： Czerwinski AW,Pederson JA

更新日期：1979-02-01 00:00:00

abstract：:A single Klebsiella pneumoniae strain isolated in a Bulgarian hospital was found to produce CTX-M-71, a new CTX-M variant characterized by one amino acid substitution from glycine to cysteine at position 238 in comparison to CTX-M-15. This exchange decreased the hydrolytic activity of the beta-lactamase for cefotaxime...

journal_title：Antimicrobial agents and chemotherapy

authors： Schneider I,Queenan AM,Markovska R,Markova B,Keuleyan E,Bauernfeind A

更新日期：2009-10-01 00:00:00

abstract：:The efficacy of a loading dose of 20 mg of chloroquine per kg of body weight per os given at intervals during the first day was evaluated in 27 patients in Madagascar with Plasmodium falciparum malaria. The conventional regimen of 25 mg/kg over 3 days (schedule 1) was thus compared with a regimen of 30 mg/kg over 2 da...

journal_title：Antimicrobial agents and chemotherapy

authors： Pussard E,Lepers JP,Clavier F,Raharimalala L,Le Bras J,Frisk-Holmberg M,Bergqvist Y,Verdier F

更新日期：1991-03-01 00:00:00

abstract：:The gram-positive bacterium Streptomyces noursei ATCC 11455 produces a complex mixture of polyene macrolides generally termed nystatins. Although the structures for nystatins A(1) and A(3) have been reported, the identities of other components of the nystatin complex remain obscure. Analyses of the culture extract fro...

journal_title：Antimicrobial agents and chemotherapy

authors： Bruheim P,Borgos SE,Tsan P,Sletta H,Ellingsen TE,Lancelin JM,Zotchev SB

更新日期：2004-11-01 00:00:00

abstract：:We investigated the occurrence of multidrug resistance in 44 Enterobacter aerogenes and Klebsiella pneumoniae clinical isolates. Efflux was involved in resistance in E. aerogenes isolates more frequently than in K. pneumoniae isolates (100 versus 38% of isolates) and was associated with the expression of phenylalanine...

journal_title：Antimicrobial agents and chemotherapy

authors： Tran QT,Dupont M,Lavigne JP,Chevalier J,Pagès JM,Sotto A,Davin-Regli A

更新日期：2009-04-01 00:00:00

abstract：:The in vitro susceptibilities of 151 unique clinical isolates of Mycoplasma pneumoniae, Mycoplasma hominis, Mycoplasma fermentans, Mycoplasma genitalium, and Ureaplasma species to DC-159a, an investigational fluoroquinolone, in comparison with those to other agents were determined. Macrolides were the most active agen...

journal_title：Antimicrobial agents and chemotherapy

authors： Waites KB,Crabb DM,Duffy LB

更新日期：2008-10-01 00:00:00

abstract：:Eighty group G streptococcal stains were collected from Chinese children. Susceptibility testing was done by a double-dilution and a disk diffusion method. PCR was used to test drug-resistant genes, and the χ(2) test and definite probability methods were used to test for statistically significant differences among the...

journal_title：Antimicrobial agents and chemotherapy

authors： Yin J,Yu S,Liu X,Li Y,Gao W,Ma X,Yang Y

更新日期：2011-01-01 00:00:00

abstract：:Three procedures were presented for appraising the ability of antibacterial chemicals and formulations to suppress the growth of microorganisms on human skin. In each of these, the microflora was quantified after the skin had been occlusively covered for a day or more, a circumstance which, in the absence of a deterre...

journal_title：Antimicrobial agents and chemotherapy

authors： Marples RR,Kligman AM

更新日期：1974-03-01 00:00:00

abstract：:Miloxacin, a synthetic antibacterial agent structurally related to oxolinic acid, has a broad spectrum of activity in vitro against gram-negative bacteria and considerable activity in vivo against infections with these bacteria. These observations led to studies on the absorption and excretion of miloxacin in mice, ra...

journal_title：Antimicrobial agents and chemotherapy

authors： Izawa A,Yoshitake A,Komatsu T

更新日期：1980-07-01 00:00:00

abstract：:The in vitro activity of the aminoglycoside 6'-N-acetyltransferase type Ib [AAC(6')-Ib] was inhibited by CuCl2 with a 50% inhibitory concentration (IC50) of 2.8 μM. The growth of an amikacin-resistant Klebsiella pneumoniae strain isolated from a neonate with meningitis was inhibited when amikacin was supplemented by t...

journal_title：Antimicrobial agents and chemotherapy

authors： Chiem K,Fuentes BA,Lin DL,Tran T,Jackson A,Ramirez MS,Tolmasky ME

更新日期：2015-09-01 00:00:00

abstract：:As in other pathogenic fungi, the major sterol synthesized by Cryptococcus neoformans var. neoformans is ergosterol. This yeast also shares with most pathogenic fungi a susceptibility of its cytochrome P-450-dependent ergosterol synthesis to nanomolar concentrations of itraconazole. Fifty percent inhibition of ergoste...

journal_title：Antimicrobial agents and chemotherapy

authors： Vanden Bossche H,Marichal P,Le Jeune L,Coene MC,Gorrens J,Cools W

更新日期：1993-10-01 00:00:00

abstract：:Invasive aspergillosis is an increasingly frequent opportunistic infection in immunocompromised patients. Only two agents, amphotericin B and itraconazole, are licensed for therapy. Itraconazole acts through inhibition of a P-450 enzyme undertaking sterol 14alpha demethylation. In vitro resistance in Aspergillus fumig...

journal_title：Antimicrobial agents and chemotherapy

authors： Denning DW,Venkateswarlu K,Oakley KL,Anderson MJ,Manning NJ,Stevens DA,Warnock DW,Kelly SL

更新日期：1997-06-01 00:00:00

abstract：:Antistaphylococcal activity of the novel chimeric endolysin PRF-119 was evaluated with the microdilution method. The MIC(50) and MIC(90) of 398 methicillin-susceptible Staphylococcus aureus isolates were 0.098 μg/ml and 0.391 μg/ml, respectively (range, 0.024 to 0.780 μg/ml). Both the MIC(50) and MIC(90) values of 776...

journal_title：Antimicrobial agents and chemotherapy

authors： Idelevich EA,von Eiff C,Friedrich AW,Iannelli D,Xia G,Peters G,Peschel A,Wanninger I,Becker K

更新日期：2011-09-01 00:00:00

abstract：:The outer membrane of gram-negative cells excludes hydrophobic molecules and is responsible for the resistance of these cells to a number of dyes, detergents, and antibiotics. We describe a test for hydrophobic permeability in which a series of tetracyclines with various hydrophobicities are used. Normal Escherichia c...

journal_title：Antimicrobial agents and chemotherapy

authors： Leive L,Telesetsky S,Coleman WG Jr,Carr D

更新日期：1984-05-01 00:00:00

abstract：:Nonpregnant and pregnant guinea pigs in the last third of gestation were injected intramuscularly with 4 mg of gentamicin per kg, and drug concentrations in plasma were determined by radioimmunoassay at several intervals after injection. The maximum gentamicin concentration was lower in pregnant than in nonpregnant an...

journal_title：Antimicrobial agents and chemotherapy

authors： Lelievre-Pegorier M,Sakly R,Meulemans A,Merlet-Benichou C

更新日期：1985-10-01 00:00:00

abstract：:Mycobacterium abscessus has emerged as an important pathogen in people with chronic inflammatory lung diseases such as cystic fibrosis, and recent reports suggest that it may be transmissible by fomites. M. abscessus exhibits two major colony morphology variants: a smooth morphotype (MaSm ) and a rough morphotype (MaR...

journal_title：Antimicrobial agents and chemotherapy

authors： Clary G,Sasindran SJ,Nesbitt N,Mason L,Cole S,Azad A,McCoy K,Schlesinger LS,Hall-Stoodley L

更新日期：2018-02-23 00:00:00

abstract：:Antibiotic resistance of biofilm-grown bacteria contributes to chronic infections, such as marginal and periapical periodontitis, which are strongly associated with Porphyromonas gingivalis. Concurrent azithromycin (AZM) administration and mechanical debridement improve the clinical parameters of periodontal tissue in...

journal_title：Antimicrobial agents and chemotherapy

authors： Maezono H,Noiri Y,Asahi Y,Yamaguchi M,Yamamoto R,Izutani N,Azakami H,Ebisu S

更新日期：2011-12-01 00:00:00

abstract：:Past genotypic studies of Mycobacterium tuberculosis may have incorrectly estimated the importance of specific drug resistance mutations due to a number of sampling biases including an overrepresentation of multidrug-resistant (MDR) isolates. An accurate assessment of resistance mutations is crucial for understanding ...

journal_title：Antimicrobial agents and chemotherapy

authors： Piatek AS,Telenti A,Murray MR,El-Hajj H,Jacobs WR Jr,Kramer FR,Alland D

更新日期：2000-01-01 00:00:00

abstract：:Tested against 9,412 recent clinical isolates, cefotaxime exhibited 8 to 64 times greater activity against the Enterobacteriaceae than did cephalothin and two to four times greater activity against Pseudomonas aeruginosa, but only one-half to one-eighth the activity of cephalothin against staphylococci. Using 420 diff...

journal_title：Antimicrobial agents and chemotherapy

authors： Fuchs PC,Barry AL,Thornsberry C,Jones RN,Gavan TL,Gerlach EH,Sommers HM

更新日期：1980-07-01 00:00:00