Occurrence of efflux mechanism and cephalosporinase variant in a population of Enterobacter aerogenes and Klebsiella pneumoniae isolates producing extended-spectrum beta-lactamases.

abstract：:Weak T-cell reactivity to hepatitis B virus (HBV) is thought to be the dominant cause for chronic HBV infection. Treatment with adefovir dipivoxil (ADV) increases the rate of HBV e antigen (HBeAg) loss; however, the immune mechanisms associated with this treatment response are not understood. Serial analysis of HBV-sp...

journal_title：Antimicrobial agents and chemotherapy

authors： Cooksley H,Chokshi S,Maayan Y,Wedemeyer H,Andreone P,Gilson R,Warnes T,Paganin S,Zoulim F,Frederick D,Neumann AU,Brosgart CL,Naoumov NV

更新日期：2008-01-01 00:00:00

abstract：:We developed a multiplex PCR assay capable of identifying two capsular polysaccharide synthesis sequence types (sequence type 258 [ST258] cps-1 and cps-2) in epidemic Klebsiella pneumoniae ST258 strains. The assay performed with excellent sensitivity (100%) and specificity (100%) for identifying cps types in 60 ST258 ...

journal_title：Antimicrobial agents and chemotherapy

authors： Chen L,Chavda KD,Findlay J,Peirano G,Hopkins K,Pitout JD,Bonomo RA,Woodford N,DeLeo FR,Kreiswirth BN

更新日期：2014-07-01 00:00:00

abstract：:We evaluated and compared the efficacies of different antifungal drugs against Sarocladium kiliense (formerly Acremonium kiliense), a clinically relevant opportunistic fungus, in a murine model of systemic infection. Three clinical strains of this fungus were tested, and the therapy administered was as follows: posaco...

journal_title：Antimicrobial agents and chemotherapy

authors： Fernández-Silva F,Capilla J,Mayayo E,Sutton DA,Hernández P,Guarro J

更新日期：2013-12-01 00:00:00

abstract：:A reverse-phase high-pressure liquid chromatography method for the quantitation of sulbactam in plasma, urine, and tissue is described. The assay used the formation of an imidazole derivative followed by extraction with acetonitrile and dichloromethane and used UV absorbance for detection. The mobile phase consisted o...

journal_title：Antimicrobial agents and chemotherapy

authors： Bawdon RE,Madsen PO

更新日期：1986-08-01 00:00:00

abstract：:Streptomyces bacteria are renowned for their ability to produce bioactive secondary metabolites. Recently, synthetic biology has enabled the production of intermediates and shunt products, which may have altered biological activities compared to the end products of the pathways. Here, we have evaluated the potential o...

journal_title：Antimicrobial agents and chemotherapy

authors： Oja T,San Martin Galindo P,Taguchi T,Manner S,Vuorela PM,Ichinose K,Metsä-Ketelä M,Fallarero A

更新日期：2015-10-01 00:00:00

abstract：:The effects of caspofungin combined with amphotericin B were investigated with Candida glabrata. Although in vitro experiments showed an indifferent interaction, the combination regimen was the only therapeutic approach yielding organ sterilization in a murine candidemia model. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Barchiesi F,Spreghini E,Fothergill AW,Arzeni D,Greganti G,Giannini D,Rinaldi MG,Scalise G

更新日期：2005-06-01 00:00:00

abstract：:Pulmonary infiltrates in neutropenic hosts with invasive aspergillosis are due to vascular invasion and hemorrhagic infarction. In order to measure the effect of antifungal compounds on this organism-mediated tissue injury, we monitored the course of pulmonary infiltrates by serial ultrafast computerized tomography (U...

journal_title：Antimicrobial agents and chemotherapy

authors： Walsh TJ,Garrett K,Feurerstein E,Girton M,Allende M,Bacher J,Francesconi A,Schaufele R,Pizzo PA

更新日期：1995-05-01 00:00:00

abstract：:The in vitro activity of gentamicin was compared with its therapeutic efficacy in rabbits with Streptococcus faecalis endocarditis. The test strain was resistant to gentamicin as measured by MICs and MBCs determined in Mueller-Hinton broth alone or in broth supplemented with 50% rabbit serum. Gentamicin also failed to...

journal_title：Antimicrobial agents and chemotherapy

authors： Sullam PM,Täuber MG,Hackbarth CJ,Sande MA

更新日期：1985-02-01 00:00:00

abstract：:The spectrum of activity of levofloxacin was initially determined against 29 strains belonging to 16 species of atypical mycobacteria by measuring radiometric MICs. Levofloxacin MICs were 1 to 2 dilutions lower compared with those obtained for ofloxacin and 8 to 64 dilutions lower compared with those obtained for its ...

journal_title：Antimicrobial agents and chemotherapy

authors： Rastogi N,Goh KS,Bryskier A,Devallois A

更新日期：1996-11-01 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：:The present study examined the efficacy of using multiple mechanisms as part of a topical microbicide to inactivate herpes simplex virus (HSV) by combining theaflavin-3,3'-digallate (TF-3) and lactic acid (LA) over the pH range of 4.0 to 5.7 to mimic conditions in the female reproductive tract. Six clinical isolates o...

journal_title：Antimicrobial agents and chemotherapy

authors： Isaacs CE,Xu W

更新日期：2013-08-01 00:00:00

abstract：:Telithromycin MICs for 13,874 Streptococcus pneumoniae isolates collected in the first 3 years of the global PROTEKT study (1999 to 2003) were studied. There was no change in the distribution of telithromycin MICs over this period, even in countries where telithromycin is in use. The telithromycin MICs for 10 isolates...

journal_title：Antimicrobial agents and chemotherapy

authors： Farrell DJ,Felmingham D

更新日期：2004-05-01 00:00:00

abstract：:Antagonism, determined by isobolograms constructed from data from combinations of ampicillin and chloramphenicol at or below the minimal inhibitory or bactericidal concentrations, was observed against 13 clinical isolates of meningococcus and against one isolate of pneumococcus. Synergy occurred against six strains of...

journal_title：Antimicrobial agents and chemotherapy

authors： Feldman WE,Zweighaft T

更新日期：1979-02-01 00:00:00

abstract：:Candida glabrata, the second most common cause of Candida infections, is associated with high rates of mortality and often exhibits resistance to the azole class of antifungal agents. Upc2 and Ecm22 in Saccharomyces cerevisiae and Upc2 in Candida albicans are the transcriptional regulators of ERG11, the gene encoding ...

journal_title：Antimicrobial agents and chemotherapy

authors： Whaley SG,Caudle KE,Vermitsky JP,Chadwick SG,Toner G,Barker KS,Gygax SE,Rogers PD

更新日期：2014-08-01 00:00:00

abstract：:An oligonucleoside methylphosphonate (ONMP) complementary to the splice acceptor site of immediate-early (IE) pre-mRNAs 4 and 5 (IE4,5SA) inhibits herpes simplex virus type 1 (HSV-1) growth in vitro and in infected animals. The antiviral effect appears to be due to inhibition of IE pre-mRNA 4 and 5 splicing and/or IE4...

journal_title：Antimicrobial agents and chemotherapy

authors： Kulka M,Smith CC,Levis J,Fishelevich R,Hunter JC,Cushman CD,Miller PS,Ts'o PO,Aurelian L

更新日期：1994-04-01 00:00:00

abstract：:High-throughput screening of transposon insertion libraries is a useful strategy for unveiling bacterial genes whose inactivation results in an altered susceptibility to antibiotics. A potential drawback of these studies is they are usually based on just one model antibiotic for each structural family, under the assum...

journal_title：Antimicrobial agents and chemotherapy

authors： Sanz-García F,Alvarez-Ortega C,Olivares-Pacheco J,Blanco P,Martínez JL,Hernando-Amado S

更新日期：2019-04-25 00:00:00

abstract：:For the present report, a novel complex class 1 integron, In60, was characterized. Part of this integron includes the bla(CTX-M-9) gene and its downstream nucleotide sequence, which shares 81% and 78% nucleotide identity with those of kluA-1 beta-lactamase and orf3 of K. ascorbata, respectively. Furthermore, a new ins...

journal_title：Antimicrobial agents and chemotherapy

authors： Sabaté M,Navarro F,Miró E,Campoy S,Mirelis B,Barbé J,Prats G

更新日期：2002-08-01 00:00:00

abstract：:We compared MICs and MBCs of various free- and liposome-incorporated antimicrobial agents against several patient isolates of Mycobacterium avium-M. intracellulare complex and certain American Type Culture Collection strains of M. avium, M. intracellulare, and Mycobacterium tuberculosis. Seven of 19 agents were select...

journal_title：Antimicrobial agents and chemotherapy

authors： Mehta RT,Keyhani A,McQueen TJ,Rosenbaum B,Rolston KV,Tarrand JJ

更新日期：1993-12-01 00:00:00

abstract：:Antibacterial compounds with novel modes of action are needed for management of bacterial infections. Here we describe a high-content screen of 9,800 compounds identifying acylated sulfonamides as novel growth inhibitors of the sexually transmitted pathogen Chlamydia trachomatis. The effect was bactericidal and distin...

journal_title：Antimicrobial agents and chemotherapy

authors： Marwaha S,Uvell H,Salin O,Lindgren AE,Silver J,Elofsson M,Gylfe A

更新日期：2014-05-01 00:00:00

abstract：:The VanR-VanS two-component system is responsible for inducing resistance to glycopeptide antibiotics in various bacteria. We have performed a comparative study of the VanR-VanS systems from two streptomyces strains, Streptomyces coelicolor and Streptomyces toyocaensis, to characterize how the two proteins cooperate t...

journal_title：Antimicrobial agents and chemotherapy

authors： Novotna GB,Kwun MJ,Hong HJ

更新日期：2015-12-28 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：:Patients with severe coccidioidomycosis infections are often treated with either amphotericin B lipid complex (ABLC) or liposomal amphotericin B (L-AmB). Outcome data with these agents in severe coccidioidomycosis cases are currently lacking. The purpose of this study is to evaluate the efficacy and toxicity of ABLC a...

journal_title：Antimicrobial agents and chemotherapy

authors： Sidhu R,Lash DB,Heidari A,Natarajan P,Johnson RH

更新日期：2018-06-26 00:00:00

abstract：:A PCR-based technique using new fluorescent probes, called molecular beacons, was developed to detect the antifolate resistance-associated S108N point mutation in Plasmodium falciparum. One hundred African clinical isolates were tested by the new method in comparison with the PCR-restriction fragment length polymorphi...

journal_title：Antimicrobial agents and chemotherapy

authors： Durand R,Eslahpazire J,Jafari S,Delabre JF,Marmorat-Khuong A,di Piazza JP,Le Bras J

更新日期：2000-12-01 00:00:00

abstract：:Although controversial, it has been suggested that antibiotic treatment of laboratory animals infected with Borrelia burgdorferi often leads to the persistence of residual spirochetes that are claimed to be viable but noncultivable. If viable cells of B. burgdorferi do persist following antibiotic therapy, one possibl...

journal_title：Antimicrobial agents and chemotherapy

authors： Pavia CS,Wormser GP

更新日期：2014-11-01 00:00:00

abstract：:A dipeptide lantibiotic, named Smb, in Streptococcus mutans GS5 was characterized by molecular genetic approaches. The Smb biosynthesis gene locus is encoded by a 9.5-kb region of chromosomal DNA and consists of seven genes in the order smbM1, -T, -F, -M2, -G, -A, -B. This operon is not present in some other strains o...

journal_title：Antimicrobial agents and chemotherapy

authors： Yonezawa H,Kuramitsu HK

更新日期：2005-02-01 00:00:00

abstract：:The most deadly outbreak of Escherichia coli O104:H4 occurred in Europe in 2011. Here, we evaluated the effects of the retrograde trafficking inhibitor Retro-2(cycl) in a murine model of E. coli O104:H4 infection. Systemic treatment with Retro-2(cycl) significantly reduced body weight loss and improved clinical scores...

journal_title：Antimicrobial agents and chemotherapy

authors： Secher T,Shima A,Hinsinger K,Cintrat JC,Johannes L,Barbier J,Gillet D,Oswald E

更新日期：2015-08-01 00:00:00

abstract：:Pseudomonas aeruginosa 455, isolated in Ankara, Turkey, produced a pI 6.2 beta-lactamase determined by plasmid pMLH53 and resisted all beta-lactams except carbapenems. This beta-lactamase, named OXA-14, corresponded to OXA-10 (PSE-2) except that aspartate replaced glycine at position 157 and thus is intermediate betwe...

journal_title：Antimicrobial agents and chemotherapy

authors： Danel F,Hall LM,Gur D,Livermore DM

更新日期：1995-08-01 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：:Antibiotic tolerance is an underappreciated antibiotic escape strategy that is associated with recurrent and relapsing infections, as well as acting as a precursor to resistance. Tolerance describes the ability of a bacterial population to survive transient exposure to an otherwise lethal concentration of antibiotic w...

journal_title：Antimicrobial agents and chemotherapy

authors： Bryson D,Hettle AG,Boraston AB,Hobbs JK

更新日期：2020-02-21 00:00:00

abstract：:Despite over 40 years of worldwide usage, relatively few data have been published on the pharmacokinetics of cefazolin in pediatric surgical patients. The primary objectives of this study were to examine the pharmacokinetics and safety of cefazolin in children 10 to 12 years of age (inclusive) receiving 1 or 2 g of ce...

journal_title：Antimicrobial agents and chemotherapy

authors： Schmitz ML,Blumer JL,Cetnarowski W,Rubino CM

更新日期：2015-07-01 00:00:00