Antifolate activity of isoaminopterin in HeLa cells.

abstract：:para-Aminosalicylic acid (PAS) remains one of the drugs of last resort for the treatment of tuberculosis, but its mechanism of action is still not completely understood. The main aim of this project was to identify new potential mechanisms of action and resistance to PAS by performing whole-genome sequencing on PAS-re...

journal_title：Antimicrobial agents and chemotherapy

authors： Satta G,Witney AA,Begum N,Ortiz Canseco J,Boa AN,McHugh TD

更新日期：2020-08-20 00:00:00

abstract：:We investigated the azole resistance mechanisms and clinical features of fluconazole-nonsusceptible (FNS) isolates of Candida tropicalis recovered from Korean surveillance cultures in comparison with fluconazole-less-susceptible (FLS) isolates. Thirty-five clinical isolates of C. tropicalis, comprising 9 FNS (fluconaz...

journal_title：Antimicrobial agents and chemotherapy

authors： Choi MJ,Won EJ,Shin JH,Kim SH,Lee WG,Kim MN,Lee K,Shin MG,Suh SP,Ryang DW,Im YJ

更新日期：2016-05-23 00:00:00

abstract：:Clinical isolates of Escherichia coli and Klebsiella pneumoniae producing extended-spectrum beta-lactamases or plasmid-mediated AmpC beta-lactamases were screened for qnrA and qnrB genes. QnrB was present in 54 of 54 DHA-1-producing K. pneumoniae isolates and 10 of 45 SHV-12-producing ones, suggesting that the distrib...

journal_title：Antimicrobial agents and chemotherapy

authors： Pai H,Seo MR,Choi TY

更新日期：2007-01-01 00:00:00

abstract：:The aim of the study was to identify the plasmid-encoded factors contributing to the emergence and spread of epidemic IncI1-Iγ plasmids obtained from Escherichia coli and Salmonella enterica isolates from animal and human reservoirs. For this, 251 IncI1-Iγ plasmids carrying various extended-spectrum β-lactamase (ESBL)...

journal_title：Antimicrobial agents and chemotherapy

authors： Smith H,Bossers A,Harders F,Wu G,Woodford N,Schwarz S,Guerra B,Rodríguez I,van Essen-Zandbergen A,Brouwer M,Mevius D

更新日期：2015-09-01 00:00:00

abstract：:The physical and nutritional requirements of the antibiotic-producing slime mold Physarum gyrosum were examined to develop a liquid medium for this myxomycete. Liquid culture is desired to expedite a useful scale of production of antibiotic materials for ease of isolation and structure study. Culture conditions were s...

journal_title：Antimicrobial agents and chemotherapy

authors： Taylor RL,Mallette MF

更新日期：1976-10-01 00:00:00

abstract：:A novel and highly accurate diagnostic assay platform was established for rapid identification of FKS mutations associated with echinocandin resistance in Candida glabrata The assay platform uses allele-specific molecular beacon and DNA melt analysis following asymmetric PCR. A dual assay for FKS1 and FKS2 was develop...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhao Y,Nagasaki Y,Kordalewska M,Press EG,Shields RK,Nguyen MH,Clancy CJ,Perlin DS

更新日期：2016-10-21 00:00:00

abstract：:Miltefosine (MT) is a membrane-active alkylphospholipid licensed for the topical treatment of breast cancer skin metastases and the oral treatment of leishmaniasis, although its mechanism of action remains unclear. Electron paramagnetic resonance (EPR) spectroscopy of a spin-labeled lipid and a thiol-specific spin lab...

journal_title：Antimicrobial agents and chemotherapy

authors： Moreira RA,Mendanha SA,Fernandes KS,Matos GG,Alonso L,Dorta ML,Alonso A

更新日期：2014-06-01 00:00:00

abstract：:Pipemidic acid was absorbed well by the oral route. Its peak levels in plasma ranged from 4 to 12 mug/ml at an oral dose of about 50 mg/kg in mice, rats, dogs, monkeys, and men. The protein binding of pipemidic acid was about 20% in dog plasma and about 30% in human serum. Pipemidic acid was distributed to most of the...

journal_title：Antimicrobial agents and chemotherapy

authors： Shimizu M,Nakamura S,Takase Y,Kurobe N

更新日期：1975-04-01 00:00:00

abstract：:Mengo virus double-stranded ribonucleic acid (dsRNA) was obtained on a semi-industrial scale from infected cultures of BHK-21 cells grown in suspension. Yield of the extraction and purification operations was small (about 22 mg from 10(11) cells in a 100-liter culture). Physicochemical characterization of this dsRNA g...

journal_title：Antimicrobial agents and chemotherapy

authors： Falcoff E,Falcoff R,Cherby J,Florent J,Lunel J,Ninet L,De Ratuld Y,Tissier R,Vuillemin B,Werner GH

更新日期：1973-05-01 00:00:00

abstract：:Quinazoline-2,4-diones, such as PD 0305970, are new DNA gyrase and topoisomerase IV (topo IV) inhibitors with potent activity against gram-positive pathogens, including quinolone-resistant isolates. The mechanistic basis of dione activity vis-à-vis quinolones is not understood. We present evidence for Streptococcus pn...

journal_title：Antimicrobial agents and chemotherapy

authors： Pan XS,Gould KA,Fisher LM

更新日期：2009-09-01 00:00:00

abstract：:Malaria is the third most significant cause of infectious disease in the world. The search for new antimalarial chemotherapy has become increasingly urgent due to parasite resistance to classical drugs. Trioxaquines are synthetic hybrid molecules containing a trioxane motif (which is responsible for the antimalarial a...

journal_title：Antimicrobial agents and chemotherapy

authors： Benoit-Vical F,Lelièvre J,Berry A,Deymier C,Dechy-Cabaret O,Cazelles J,Loup C,Robert A,Magnaval JF,Meunier B

更新日期：2007-04-01 00:00:00

abstract：:Serratia marcescens S-95, which displayed an unusually high degree of resistance to aminoglycosides, including kanamycins and gentamicins, was isolated in 2002 from a patient in Japan. The resistance was mediated by a large plasmid which was nonconjugative but transferable to an Escherichia coli recipient by transform...

journal_title：Antimicrobial agents and chemotherapy

authors： Doi Y,Yokoyama K,Yamane K,Wachino J,Shibata N,Yagi T,Shibayama K,Kato H,Arakawa Y

更新日期：2004-02-01 00:00:00

abstract：:We have attempted to validate in Aspergillus flavus the main in vitro methodologies that have been used to detect resistance in Aspergillus fumigatus. We developed a murine model with two A. flavus isolates, one that was apparently resistant in vitro to amphotericin B (AFL5) and another that was resistant to itraconaz...

journal_title：Antimicrobial agents and chemotherapy

authors： Mosquera J,Warn PA,Morrissey J,Moore CB,Gil-Lamaignere C,Denning DW

更新日期：2001-05-01 00:00:00

abstract：:DNA ligases are indispensable enzymes playing a critical role in DNA replication, recombination, and repair in all living organisms. Bacterial NAD+-dependent DNA ligase (LigA) was evaluated for its potential as a broad-spectrum antibacterial target. A novel class of substituted adenosine analogs was discovered by targ...

journal_title：Antimicrobial agents and chemotherapy

authors： Mills SD,Eakin AE,Buurman ET,Newman JV,Gao N,Huynh H,Johnson KD,Lahiri S,Shapiro AB,Walkup GK,Yang W,Stokes SS

更新日期：2011-03-01 00:00:00

abstract：:The binding of penicillin G to a stable L-form from Staphylococcus aureus followed saturation-type kinetics with saturation achieved at 0.75 nmol/ml, the same as with its parent strain. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Suginaka H

更新日期：1976-03-01 00:00:00

abstract：:The mecillinam resistance of Escherichia coli K-12 mutants deficient in the enzyme responsible for the synthesis of adenosine 3',5'-monophosphate, adenylate cyclase, has been investigated. The results suggest that resistance to this antibiotic may be a consequence of the slow growth rate of these mutants rather than a...

journal_title：Antimicrobial agents and chemotherapy

authors： Scott NW,Harwood CR

更新日期：1981-04-01 00:00:00

abstract：:Nemonoxacin (TG-873870) is a novel nonfluorinated quinolone with potent broad-spectrum activity against Gram-positive, Gram-negative, and atypical pathogens, including vancomycin-nonsusceptible methicillin-resistant Staphylococcus aureus (MRSA), quinolone-resistant MRSA, quinolone-resistant Streptococcus pneumoniae, p...

journal_title：Antimicrobial agents and chemotherapy

authors： Cao GY,Zhang J,Zhang YY,Guo BN,Yu JC,Wu XJ,Chen YC,Wu JF,Shi YG

更新日期：2014-10-01 00:00:00

abstract：:Hypermutable Pseudomonas aeruginosa strains are prevalent in patients with cystic fibrosis and rapidly become resistant to antibiotic monotherapies. Combination dosage regimens have not been optimized against such strains using mechanism-based modeling (MBM) and the hollow-fiber infection model (HFIM). The PAO1 wild-t...

journal_title：Antimicrobial agents and chemotherapy

authors： Landersdorfer CB,Rees VE,Yadav R,Rogers KE,Kim TH,Bergen PJ,Cheah SE,Boyce JD,Peleg AY,Oliver A,Shin BS,Nation RL,Bulitta JB

更新日期：2018-03-27 00:00:00

abstract：:Seventy nine strains of Yersinia enterocolitica resistant to one or more antimicrobials were analyzed for integrons. Only class 1 sul1 integrons containing aadA1a (28 strains), aadA1a-dfr1-sat1 (2 strains), and dfr1-aadA1a (1 strain) gene cassettes were found. The first two types were found in clinical isolates belong...

journal_title：Antimicrobial agents and chemotherapy

authors： Soto SM,Lobato MJ,Mendoza MC

更新日期：2003-01-01 00:00:00

abstract：:Multidrug-resistant bacteria pose a major challenge to the clinical management of infections in resource-poor settings. Although nontyphoidal Salmonella (NTS) bacteria cause predominantly enteric self-limiting illness in developed countries, NTS is responsible for a huge burden of life-threatening bloodstream infectio...

journal_title：Antimicrobial agents and chemotherapy

authors： Kariuki S,Okoro C,Kiiru J,Njoroge S,Omuse G,Langridge G,Kingsley RA,Dougan G,Revathi G

更新日期：2015-01-01 00:00:00

abstract：:In vivo antiherpesvirus effects of 1-beta-D-arabinofuranosyl-E-5-(2-bromovinyl)uracil (brovavir) were tested in two mouse model infections with herpes simplex virus type 1 (HSV-1) strains which showed different degrees of virulence in mice. Successful efficacies of oral and intraperitoneal (i.p.) treatments with brova...

journal_title：Antimicrobial agents and chemotherapy

authors： Machida H,Takezawa J

更新日期：1990-05-01 00:00:00

abstract：:Mycobacteria grew rapidly in FST medium (tissue culture medium F12 supplemented with 5% serum and 0.05% Tween 80). Growth of Mycobacterium tuberculosis and other niacin-negative mycobacteria in flat-bottomed, 96-well tissue culture plates was estimable by the naked eye within 3 to 5 days when mycobacteria were inocula...

journal_title：Antimicrobial agents and chemotherapy

authors： Nozawa RT,Yokota T

更新日期：1983-08-01 00:00:00

abstract：:Sixteen clinical fungal isolates were tested for antibiotic susceptibility by using disks impregnated with growth medium and antibiotic. The procedure was easier to perform, less time consuming, and as reliable as other currently available methods. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Boyer JE

更新日期：1976-06-01 00:00:00

abstract：:The ST5 lineage of methicillin-resistant Staphylococcus aureus (MRSA) is one of the most globally disseminated hospital-associated MRSA (HA-MRSA) lineages. We isolated a new local variant (designated ST764) over at least 5 years that causes invasive infections, including necrotizing fasciitis, and is carried by medica...

journal_title：Antimicrobial agents and chemotherapy

authors： Takano T,Hung WC,Shibuya M,Higuchi W,Iwao Y,Nishiyama A,Reva I,Khokhlova OE,Yabe S,Ozaki K,Takano M,Yamamoto T

更新日期：2013-04-01 00:00:00

abstract：:No effective approved drug therapy exists for Cryptosporidium infection of immunocompromised patients. Here we investigated the nonabsorbed anthelmintic drug pyrvinium pamoate for inhibition of the growth of the intestinal protozoan parasite Cryptosporidium parvum. The concentration of pyrvinium that effected 50% grow...

journal_title：Antimicrobial agents and chemotherapy

authors： Downey AS,Chong CR,Graczyk TK,Sullivan DJ

更新日期：2008-09-01 00:00:00

abstract：:Cefazolin was added to dialysis fluid in nine patients with renal failure undergoing peritoneal dialysis with 2 liters/h per exchange. With 50 mg/liter (three patients), the first measurable mean serum concentration was 3.7 mug/ml (range, 2.4 to 4.9 mug/ml) after three exchanges and was 30.3 mug/ml (range, 13.3 to 44....

journal_title：Antimicrobial agents and chemotherapy

authors： Kaye D,Wenger N,Agarwal B

更新日期：1978-09-01 00:00:00

abstract：:We performed the characterization of a multidrug-resistant (MDR) Enterobacter spp. isolate highlighting the genetic aspects of the antimicrobial resistance genes. An Enterobacter spp. isolate (Ec61) was recovered in 2014 from a transtracheal aspirate sample from a patient admitted to a Brazilian tertiary hospital and ...

journal_title：Antimicrobial agents and chemotherapy

authors： Martins WMBS,Martins ER,de Andrade LK,Farzana R,Walsh TR,Toleman MA,Nogueira MCL,Gales AC

更新日期：2020-12-14 00:00:00

abstract：:Twenty-seven patients with advanced malignancies were given 200 mg of ketoconazole orally every 6 or 12 h. Blood samples were collected during these intervals and after the last dose to determine plasma concentrations and half-lives. The mean plasma concentrations measured after the initial dose were 1.7 +/- 1.1 micro...

journal_title：Antimicrobial agents and chemotherapy

authors： Maksymiuk AW,Levine HB,Bodey GP

更新日期：1982-07-01 00:00:00

abstract：:Infection caused by Mycobacterium avium is common in AIDS patients who do not receive treatment with highly active antiretroviral therapy (HAART) or who develop resistance to anti-HIV therapy. Mefloquine, a racemic mixture used for malaria prophylaxis and treatment, is bactericidal against M. avium in mice. MICs of (+...

journal_title：Antimicrobial agents and chemotherapy

authors： Bermudez LE,Inderlied CB,Kolonoski P,Chee CB,Aralar P,Petrofsky M,Parman T,Green CE,Lewin AH,Ellis WY,Young LS

更新日期：2012-08-01 00:00:00

abstract：:A micellar formulation of amphotericin B (AmB) solubilized with poloxamer 188 was evaluated against an AmB Leishmania donovani-resistant line. A concave isobologram showed a synergistic effect of this association against promastigotes. This result was confirmed with amastigotes since the 50% effective concentration of...

journal_title：Antimicrobial agents and chemotherapy

authors： Espuelas S,Legrand P,Loiseau PM,Bories C,Barratt G,Irache JM

更新日期：2000-08-01 00:00:00