In vitro activity of a new carbapenem antibiotic, BO-2727, with potent antipseudomonal activity.

abstract：:A clinical isolate of Pseudomonas aeruginosa recovered from the lower respiratory tract of an 81-year-old patient hospitalized in Belgium was sent to the national reference center to determine its resistance mechanism. PCR sequencing identified a new GES variant, GES-18, which differs from the carbapenem-hydrolyzing e...

journal_title：Antimicrobial agents and chemotherapy

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

更新日期：2013-01-01 00:00:00

abstract：:Mycobacterium abscessus is intrinsically resistant to many antimycobacterial antibiotics, which presents serious problems in therapy. Here, we describe the development of a novel phenotype-based microscopic and computerized imaging drug screening approach. A pilot screen of 568 compounds from two libraries identified ...

journal_title：Antimicrobial agents and chemotherapy

authors： Richter A,Strauch A,Chao J,Ko M,Av-Gay Y

更新日期：2018-08-27 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：:Deciphering the mode of action (MOA) of new antibiotics discovered through phenotypic screening is of increasing importance. Metabolomics offers a potentially rapid and cost-effective means of identifying modes of action of drugs whose effects are mediated through changes in metabolism. Metabolomics techniques also co...

journal_title：Antimicrobial agents and chemotherapy

authors： Vincent IM,Ehmann DE,Mills SD,Perros M,Barrett MP

更新日期：2016-03-25 00:00:00

abstract：:Replication of hepatitis C virus (HCV) RNA is catalyzed by the virally encoded RNA-dependent RNA polymerase NS5B. It is believed that the viral polymerase utilizes a de novo or primer-independent mechanism for initiation of RNA synthesis. Our previous work has shown that dinucleotides were efficient initiation molecul...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhong W,An H,Barawkar D,Hong Z

更新日期：2003-08-01 00:00:00

abstract：:Invasive pulmonary aspergillosis (IPA) is a devastating disease of immunocompromised patients. Pharmacodynamic (PD) examination of antifungal drug therapy in IPA is one strategy that may improve outcomes. The current study explored the PD target of posaconazole in an immunocompromised murine model of IPA against 10 A....

journal_title：Antimicrobial agents and chemotherapy

authors： Lepak AJ,Marchillo K,Vanhecker J,Andes DR

更新日期：2013-01-01 00:00:00

abstract：:Passive antibody administration is a potentially useful approach for the therapy of human Cryptococcus neoformans infections. To evaluate the efficacy of the human immunoglobulin G1 (IgG1) constant region against C. neoformans and to construct murine antibody derivatives with reduced immunogenicities and longer half-l...

journal_title：Antimicrobial agents and chemotherapy

authors： Zebedee SL,Koduri RK,Mukherjee J,Mukherjee S,Lee S,Sauer DF,Scharff MD,Casadevall A

更新日期：1994-07-01 00:00:00

abstract：:TEM-24 remains one of the most widespread TEM-type extended-spectrum beta-lactamases (ESBLs) among Enterobacteriaceae. To analyze the reasons influencing its spread and persistence, a multilevel population genetics study was carried out on 28 representative TEM-24 producers from Belgium, France, Portugal, and Spain (1...

journal_title：Antimicrobial agents and chemotherapy

authors： Novais A,Baquero F,Machado E,Cantón R,Peixe L,Coque TM

更新日期：2010-02-01 00:00:00

abstract：:Antibiotic dynamics in the fluid obtained from subcutaneously implanted chambers in rats were similar to those observed in serum following single intramuscular injections of carbenicillin. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Gardner WG,Prior RB,Perkins RL

更新日期：1973-08-01 00:00:00

abstract：:Recently, the first Neisseria gonorrhoeae strain (H041) highly resistant to the expanded-spectrum cephalosporins (ESCs) ceftriaxone and cefixime, which are the last remaining options for first-line gonorrhea treatment, was isolated in Japan. Here, we confirm and characterize a second strain (F89) with high-level cefix...

journal_title：Antimicrobial agents and chemotherapy

authors： Unemo M,Golparian D,Nicholas R,Ohnishi M,Gallay A,Sednaoui P

更新日期：2012-03-01 00:00:00

abstract：:The residual antibiotic concentration of vancomycin (2 mg/ml)- or ceftazidime (2 mg/ml)-heparin solutions instilled in ports in pediatric hematology-oncology patients 1 to 34 days earlier was measured. Antibiotic concentrations of > or = 100 microg of either antibiotic per ml persisted for at least 21 days. For treatm...

journal_title：Antimicrobial agents and chemotherapy

authors： Haimi-Cohen Y,Husain N,Meenan J,Karayalcin G,Lehrer M,Rubin LG

更新日期：2001-05-01 00:00:00

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：:We evaluated the potency of garenoxacin in selecting resistant Streptococcus pneumoniae mutants by determining its mutant prevention concentration, using strains with and without topoisomerase gene mutations, and compared its potency to that of other quinolones. Garenoxacin had a significantly greater potency against ...

journal_title：Antimicrobial agents and chemotherapy

authors： Yamamoto K,Yanagihara K,Sugahara K,Imamura Y,Seki M,Izumikawa K,Kakeya H,Yamamoto Y,Hirakata Y,Kamihira S,Kohno S

更新日期：2009-08-01 00:00:00

abstract：:Tiacumicins B and C are members of a novel group of 18-membered macrolide antibiotics with in vitro activity against Clostridium difficile. The MICs against 15 strains of C. difficile were 0.12 to 0.25 microgram/ml for tiacumicin B, 0.25 to 1 microgram/ml for tiacumicin C, and 0.5 to 1 microgram/ml for vancomycin. The...

journal_title：Antimicrobial agents and chemotherapy

authors： Swanson RN,Hardy DJ,Shipkowitz NL,Hanson CW,Ramer NC,Fernandes PB,Clement JJ

更新日期：1991-06-01 00:00:00

abstract：:The frequencies of tetracycline resistance determinants of the classes A, B, C, and D were determined in 53 non-lactose-fermenting clinical isolates. The most frequent class of determinant in Salmonella typhimurium and Shigella flexneri strains was class B; however, the predominant determinant in Shigella sonnei strai...

journal_title：Antimicrobial agents and chemotherapy

authors： Martínez-Salazar JM,Alvarez G,Gómez-Eichelmann MC

更新日期：1986-10-01 00:00:00

abstract：:Killing by beta-lactams is well known to be reduced against a dense bacterial population, commonly known as the inoculum effect. However, the underlying mechanism of this phenomenon is not well understood. We proposed a semi-mechanistic mathematical model to account for the reduced in vitro killing observed. Time-kill...

journal_title：Antimicrobial agents and chemotherapy

authors： Bhagunde P,Chang KT,Singh R,Singh V,Garey KW,Nikolaou M,Tam VH

更新日期：2010-11-01 00:00:00

abstract：:Trimethoprim resistance dihydrofolate reductase genes from plasmids known to be exchanging between human and animal populations were mapped. The dihydrofolate reductase gene has been highly conserved in all plasmids, but differences in the flanking regions provide evidence that the most recent exchange of plasmids bet...

journal_title：Antimicrobial agents and chemotherapy

authors： Campbell IG,Mee BJ

更新日期：1987-09-01 00:00:00

abstract：:The pharmacokinetics and metabolism of 3'-azido-3'-deoxythymidine (AZT) were investigated in rhesus monkeys after subcutaneous administration of 33.3 mg of AZT per kg of body weight alone or in the presence of 100 mg of probenecid per kg. In addition to unchanged drug, two catabolites, 5'-O-glucuronide (GAZT) and 3'-a...

journal_title：Antimicrobial agents and chemotherapy

authors： Cretton EM,Schinazi RF,McClure HM,Anderson DC,Sommadossi JP

更新日期：1991-05-01 00:00:00

abstract：:Because macrolide antibiotics are hypothesized to possess immunomodulatory activity independent of their antimicrobial activity, we evaluated the immunomodulatory effect of clarithromycin in a murine model of lung inflammation induced by either live or UV-killed Mycoplasma pneumoniae. BALB/c mice were intranasally ino...

journal_title：Antimicrobial agents and chemotherapy

authors： Hardy RD,Rios AM,Chavez-Bueno S,Jafri HS,Hatfield J,Rogers BB,McCracken GH,Ramilo O

更新日期：2003-05-01 00:00:00

abstract：:Fifty strains of Mycoplasma pneumoniae in L cells were tested for susceptibility to macrolide antibiotics. Rokitamycin, a new macrolide antibiotic, was most active against these organisms, with an MIC for 90% of strains of 0.007 microgram/ml. The MICs of erythromycin, josamycin, and kitasamycin for 90% of strains were...

journal_title：Antimicrobial agents and chemotherapy

authors： Misu T,Arai S,Furukawa M,Yamamoto Y,Miyazaki T

更新日期：1987-11-01 00:00:00

abstract：:The in vitro activities of three newly developed quinolone drugs (T-3262, NY-198, and fleroxacin [AM-833; RO 23-6240]) against 10 strains of clinically isolated Chlamydia trachomatis were assessed and compared with those of other quinolones and minocycline. T-3262 (MIC for 90% of isolates tested, 0.1 microgram/ml) was...

journal_title：Antimicrobial agents and chemotherapy

authors： Maeda H,Fujii A,Nakata K,Arakawa S,Kamidono S

更新日期：1988-07-01 00:00:00

abstract：:Resistance to rifampin in Mycobacterium tuberculosis results from mutations in the gene coding for the beta subunit of RNA polymerase (rpoB). At least 95% of rifampin-resistant isolates have mutations in rpoB, and the mutations are clustered in a small region. About 40 distinct point mutations and in-frame insertions ...

journal_title：Antimicrobial agents and chemotherapy

authors： Morlock GP,Plikaytis BB,Crawford JT

更新日期：2000-12-01 00:00:00

abstract：:Early studies of immobilized peptides mainly focused upon the relationship between structural properties and the activity of soluble and surface-tethered sequences. The intention of this study was to analyze the influence of immobilization parameters upon the activity profile of peptides. Resin beads (TentaGel S NH(2)...

journal_title：Antimicrobial agents and chemotherapy

authors： Bagheri M,Beyermann M,Dathe M

更新日期：2009-03-01 00:00:00

abstract：:Although it is generally believed that bactericidal and bacteriostatic drugs should not be combined in vivo, in vitro experiments using the checkerboard dilution technique revealed no antagonism between penicillin/cephalothin and rolitetracycline but rather additive or synergistic activity of either drug combination i...

journal_title：Antimicrobial agents and chemotherapy

authors： Daschner FD

更新日期：1976-11-01 00:00:00

abstract：:The need for daily parenteral administration is an important limitation in the clinical use of pentavalent antimonial drugs against leishmaniasis. In this study, amphiphilic antimony(V) complexes were prepared from alkylmethylglucamides (L8 and L10, with carbon chain lengths of 8 and 10, respectively), and their poten...

journal_title：Antimicrobial agents and chemotherapy

authors： Fernandes FR,Ferreira WA,Campos MA,Ramos GS,Kato KC,Almeida GG,Corrêa JD Junior,Melo MN,Demicheli C,Frézard F

更新日期：2013-09-01 00:00:00

abstract：:Ampicillin resistance in Enterococcus faecium is a serious concern worldwide, complicating the treatment of E. faecium infections. Penicillin-binding protein 5 (PBP5) is considered the main ampicillin resistance determinant in E. faecium The three known E. faecium clades showed sequence variations in the pbp5 gene tha...

journal_title：Antimicrobial agents and chemotherapy

authors： Montealegre MC,Roh JH,Rae M,Davlieva MG,Singh KV,Shamoo Y,Murray BE

更新日期：2016-12-27 00:00:00

abstract：:The efficacy of atovaquone alone or combined with pyrimethamine, sulfadiazine, clarithromycin, and minocycline was examined in vitro and in a murine model of acute toxoplasmosis. In vitro studies were performed with MRC5 fibroblast tissue cultures, with quantification of Toxoplasma growth by an enzyme-linked immunosor...

journal_title：Antimicrobial agents and chemotherapy

authors： Romand S,Pudney M,Derouin F

更新日期：1993-11-01 00:00:00

abstract：:The enterococcal peptide AS-48 exerts a concentration-dependent bactericidal effect on Enterococcus faecalis subsp. liquefaciens S-47; cell rescue by cardiolipin and trypsin can be effected only in the first few minutes after antibiotic addition. Gramicidin-exposed cells are protected from killing by AS-48. Long-term ...

journal_title：Antimicrobial agents and chemotherapy

authors： Galvez A,Valdivia E,Martinez M,Maqueda M

更新日期：1989-05-01 00:00:00

abstract：:Nikkomycins are nucleoside-peptide antibiotics produced by Streptomyces species with antifungal activities through the inhibition of chitin synthesis. We investigated the antifungal activities of nikkomycin Z alone and in combination with fluconazole and itraconazole. Checkerboard synergy studies were carried out by a...

journal_title：Antimicrobial agents and chemotherapy

authors： Li RK,Rinaldi MG

更新日期：1999-06-01 00:00:00

abstract：:Here, we report the isolation of 31 Acinetobacter baumannii strains producing OXA-253 in a single large Brazilian city. These strains belonged to five different sequence types (STs), including 4 STs not previously associated with blaOXA-253 In all strains, the blaOXA-253 gene was located in a plasmid within a genetic ...

journal_title：Antimicrobial agents and chemotherapy

authors： de Sá Cavalcanti FL,Mendes-Marques CL,Vasconcelos CR,de Lima Campos T,Rezende AM,Xavier DE,Leal NC,de-Melo-Neto OP,de Morais MM,Leal-Balbino TC

更新日期：2016-12-27 00:00:00