In vitro activity of HR 810, a new cephalosporin.

abstract：:We previously reported the development of a prototype antibiotic sensitivity assay to detect drug-resistant Mycobacterium tuberculosis using infection by mycobacteriophage to create a novel nucleic acid transcript, a surrogate marker of mycobacterial viability, detected by reverse transcriptase PCR (M. C. Mulvey et al...

journal_title：Antimicrobial agents and chemotherapy

authors： Mulvey MC,Lemmon M,Rotter S,Lees J,Einck L,Nacy CA

更新日期：2015-01-01 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：:We describe here the in vitro activities of azithromycin, clarithromycin, minocycline, or tigecycline alone and in combination with amphotericin B, itraconazole, terbinafine, voriconazole, anidulafungin, caspofungin, or micafungin against 30 isolates of the oomycete Pythium insidiosum. The assays were based on the CLS...

journal_title：Antimicrobial agents and chemotherapy

authors： Jesus FP,Ferreiro L,Loreto ÉS,Pilotto MB,Ludwig A,Bizzi K,Tondolo JS,Zanette RA,Alves SH,Santurio JM

更新日期：2014-09-01 00:00:00

abstract：:We have discovered a remarkable synergistic antimalarial interaction between rufigallol and the structurally similar compound exifone. The synergistic effects were produced in chloroquine-susceptible and chloroquine-resistant clones of Plasmodium falciparum. The degree of potentiation as estimated by standard isobolar...

journal_title：Antimicrobial agents and chemotherapy

authors： Winter RW,Cornell KA,Johnson LL,Ignatushchenko M,Hinrichs DJ,Riscoe MK

更新日期：1996-06-01 00:00:00

abstract：:The postantibiotic subminimum inhibitory concentration effect (PA SME) may simulate in vivo drug exposure more accurately than the postantibiotic effect (PAE) since subinhibitory concentrations of drug persist between antibiotic dosings. In this study, we compared the PAEs and PA SMEs of levofloxacin and ciprofloxacin...

journal_title：Antimicrobial agents and chemotherapy

authors： Licata L,Smith CE,Goldschmidt RM,Barrett JF,Frosco M

更新日期：1997-05-01 00:00:00

abstract：:A case of Mycobacterium leprae rifampin resistance after irregular antileprosy treatments since 1971 is reported. Whole-genome sequencing from four longitudinal samples indicated relapse due to acquired rifampin resistance and not to reinfection with another strain. A putative compensatory mutation in rpoC was also de...

journal_title：Antimicrobial agents and chemotherapy

authors： Avanzi C,Maia RC,Benjak A,Nery JA,Sales AM,Miranda A,Duppre NC,Nogueira Brum Fontes A,Pereira da Silva T,Olmo Pinheiro R,Neves-Manta F,Moreira SJM,Busso P,Sarno EN,Suffys PN,Cole ST,Moraes MO

更新日期：2020-06-23 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：:Fifty-six strains, representing eight species of salmonellae of diverse geographic origin and possessing a variety of antimicrobial resistance profiles, were tested for susceptibility to niridazole by the agar dilution method. Calculated MICs for 50 and 90% of strains were 4.8 and 16.0 mg/liter, respectively, with a s...

journal_title：Antimicrobial agents and chemotherapy

authors： Bannatyne RM,Jackowski J,Grant RB

更新日期：1986-05-01 00:00:00

abstract：:We investigated whether cells derived from the fetal central nervous system can support productive infection by a human immunodeficiency virus type 1 (HIV-1) isolate termed UHC-1, produced by a cellular clone derived from HIV-1 strain HIV-IIIB chronically infected U-937 promonocytic cells, and what the effect of nucle...

journal_title：Antimicrobial agents and chemotherapy

authors： Geleziunas R,Arts EJ,Boulerice F,Goldman H,Wainberg MA

更新日期：1993-06-01 00:00:00

abstract：:The pharmacologic parameters and toxicity of netilmicin (6 mg/kg/day) given once daily (qd) or thrice daily (tid) for the treatment of urinary tract infections were studied in a randomized prospective study of 60 cancer patients. The overall efficacy was 96%. Nephrotoxicity, assessed by the measure of urinary excretio...

journal_title：Antimicrobial agents and chemotherapy

authors： Van der Auwera P,Meunier F,Ibrahim S,Kaufman L,Derde MP,Tulkens PM

更新日期：1991-04-01 00:00:00

abstract：:The pharmacokinetics, distribution, and plasma and renal clearance of a new aminoglycoside antibiotic, tobramycin, was studied in the treatment of 18 elderly male patients (average age, 69 years) with urinary tract infections. Ten of these patients had normal renal function and eight had impaired renal function of var...

journal_title：Antimicrobial agents and chemotherapy

authors： Naber KG,Westenfelder SR,Madsen PO

更新日期：1973-04-01 00:00:00

abstract：:Two patients (patients A and B) infected with Salmonella typhimurium failed ciprofloxacin therapy, and the posttherapy isolates had reduced susceptibilities to quinolones; 6 of 11 isolates from patient B were also cross-resistant to chemically unrelated agents. No transferable resistance, chloramphenicol-acetylating e...

journal_title：Antimicrobial agents and chemotherapy

authors： Piddock LJ,Griggs DJ,Hall MC,Jin YF

更新日期：1993-04-01 00:00:00

abstract：:Susceptibility testing of laboratory strains and clinical isolates of Borrelia burgdorferi indicates that resistance to erythromycin is present in them. Evaluation of the MICs, minimal bactericidal concentrations, and kinetics of bacterial killing of erythromycin suggests that this resistance is increased by preexposu...

journal_title：Antimicrobial agents and chemotherapy

authors： Terekhova D,Sartakova ML,Wormser GP,Schwartz I,Cabello FC

更新日期：2002-11-01 00:00:00

abstract：:MICs of a newly developed benzoxazinorifamycin derivative, KRM-1648, for Mycobacterium avium complex (MAC) were determined by the BACTEC 460 TB system and compared with those of other known antimicrobial agents. The radiometric method gave a fast, accurate, and reproducible MIC for each antimicrobial agent. MICs of KR...

journal_title：Antimicrobial agents and chemotherapy

authors： Tomioka H,Saito H,Fujii K,Sato K,Hidaka T

更新日期：1993-01-01 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：:Antimicrobial lock solutions are important for prevention of microbial colonization and infection of long-term central venous catheters. We investigated the efficacy and safety of a novel antibiotic-free lock solution formed from gas plasma-activated disinfectant (PAD). Using a luminal biofilm model, viable cells of m...

journal_title：Antimicrobial agents and chemotherapy

authors： Bhatt S,Mehta P,Chen C,Daines DA,Mermel LA,Chen HL,Kong MG

更新日期：2018-07-27 00:00:00

abstract：:Selected cephalosporins, including cefamandole, cephaloridine, cephaloglycin, and cefoxitin, were examined for their ability to inhibit the enzymatic activity of and act as substrates for beta-lactamases produced by Enterobacter cloacae and Staphylococcus aureus. Enzyme inhibition was determined by Michaelis-Menten ki...

journal_title：Antimicrobial agents and chemotherapy

authors： Mahoney DF,Koppel GA,Turner JR

更新日期：1976-09-01 00:00:00

abstract：:This report describes linezolid susceptibility testing results for 6,741 Gram-positive pathogens from 60 U.S. sites collected during 2015 for the LEADER Program. In addition, the report summarizes linezolid in vitro activity, resistance mechanisms, and molecular typing obtained for 2011 to 2015. During 2015, linezolid...

journal_title：Antimicrobial agents and chemotherapy

authors： Pfaller MA,Mendes RE,Streit JM,Hogan PA,Flamm RK

更新日期：2017-06-27 00:00:00

abstract：:3-O-(3',3'-Dimethylsuccinyl) betulinic acid (DSB), also known as PA-457, bevirimat (BVM), or MPC-4326, is a novel HIV-1 maturation inhibitor. Unlike protease inhibitors, BVM blocks the cleavage of the Gag capsid precursor (CA-SP1) to mature capsid (CA) protein, resulting in the release of immature, noninfectious viral...

journal_title：Antimicrobial agents and chemotherapy

authors： Lu W,Salzwedel K,Wang D,Chakravarty S,Freed EO,Wild CT,Li F

更新日期：2011-07-01 00:00:00

abstract：:Wild-type Proteus strains are usually resistant to colistin. We have observed an increase in the level of colistin resistance in four clinical isolates of P. vulgaris, P. morganii, and P. rettgeri by prior treatment with subinhibitory concentrations of the drug. The enhanced resistance in these strains was lost after ...

journal_title：Antimicrobial agents and chemotherapy

authors： Shimizu S,Iyobe S,Mitsuhashi S

更新日期：1977-07-01 00:00:00

abstract：:The recent reports of resistance in Plasmodium falciparum to artemisinin derivatives and their partner drugs demand intensive studies toward understanding the molecular mechanisms of resistance. In this study, we examined the in vitro susceptibility of 63 P. falciparum field isolates collected from the China-Myanmar b...

journal_title：Antimicrobial agents and chemotherapy

authors： Hao M,Jia D,Li Q,He Y,Yuan L,Xu S,Chen K,Wu J,Shen L,Sun L,Zhao H,Yang Z,Cui L

更新日期：2013-04-01 00:00:00

abstract：:Dihydroorotate dehydrogenase (DHOD) is a pyrimidine biosynthetic enzyme which is usually directly linked to the mitochondrial respiratory chain. Antimalarial naphthoquinones such as atovaquone (566c80) inhibit malarial DHOD by inhibiting electron transport. Since atovaquone also has therapeutic activity against Pneumo...

journal_title：Antimicrobial agents and chemotherapy

authors： Ittarat I,Asawamahasakda W,Bartlett MS,Smith JW,Meshnick SR

更新日期：1995-02-01 00:00:00

abstract：:Ex vivo assay systems provide a powerful approach to studying human malaria parasite biology and to testing antimalarials. For rodent malaria parasites, short-term in vitro culture and ex vivo antimalarial susceptibility assays are relatively cumbersome, relying on in vivo passage for synchronization, since ring-stage...

journal_title：Antimicrobial agents and chemotherapy

authors： Chang ZW,Malleret B,Russell B,Rénia L,Claser C

更新日期：2016-10-21 00:00:00

abstract：:We studied the efficacy of new experimental antifungal drugs, which represent molecular modifications of present active agents, in a murine model of blastomycosis. Ketoconazole, previously the best azole drug studied and which is protective when administered orally, was superior to a new oral imidazole, Bay l 9139, an...

journal_title：Antimicrobial agents and chemotherapy

authors： Lefler E,Brummer E,Perlman AM,Stevens DA

更新日期：1985-03-01 00:00:00

abstract：:Acute otitis media, a polymicrobial disease of the middle ear cavity of children, is a significant public health problem worldwide. It is most frequently caused by encapsulated Streptococcus pneumoniae and nontypeable Haemophilus influenzae, although the widespread use of pneumococcal conjugate vaccines is apparently ...

journal_title：Antimicrobial agents and chemotherapy

authors： Domenech M,García E

更新日期：2017-01-24 00:00:00

abstract：:We determined the nucleotide sequence of the blaOXA-3(pMG25) gene from Pseudomonas aeruginosa. The bla structural gene encoded a protein of 275 amino acids representing one monomer of 31,879 Da for the OXA-3 enzyme. Comparisons between the OXA-3 nucleotide and amino acid sequences and those of class A, B, C, and D bet...

journal_title：Antimicrobial agents and chemotherapy

authors： Sanschagrin F,Couture F,Levesque RC

更新日期：1995-04-01 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：:Depending on the spacing of their positive charges, ionenes, a class of quaternary ammonium polymers, increased the interferon-inducing activity of poly(inosinic acid).poly(cytidylic acid) in mouse L-929 cells, whereas they did not enhance poly(inosinic acid).poly(cytidylic acid) induced interferon production in prima...

journal_title：Antimicrobial agents and chemotherapy

authors： Clercq ED,Janik B,Sommer RG

更新日期：1977-04-01 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：:The isolation of trimethoprim-resistant, sulfonamide-susceptible Enterobacteriaceae causing urinary tract infections is reported. The appearance of these strains followed the introduction of trimethoprim alone for use as treatment. Trimethoprim resistance was attributable to plasmids or transposons less frequently in ...

journal_title：Antimicrobial agents and chemotherapy

authors： Towner KJ,Smith MA,Cowlishaw WA

更新日期：1983-04-01 00:00:00