A beta-lactamase from Serratia marcescens hydrolyzing the 2-carboxypenam T-5575.

abstract：:The MICs of three new antimicrobial agents of different classes, U-70138F, roxithromycin (RU 965), and ofloxacin (ORF 18489), versus Chlamydia trachomatis in McCoy cell cultures were 0.25, 0.8, and 1.0 microgram/ml, respectively. For each test drug, the MIC and MBC were identical or were within 1 dilution of one anoth...

journal_title：Antimicrobial agents and chemotherapy

authors： Stamm WE,Suchland R

更新日期：1986-11-01 00:00:00

abstract：:The efficacy of voriconazole in 107 patients with scedosporiosis was analyzed. Principal infection sites were the lungs/sinuses (24%), central nervous system (CNS) (20%), and bone (18%), while 21% of patients had disseminated infection. Solid organ transplantation (22%), hematological malignancy (21%), and surgery/tra...

journal_title：Antimicrobial agents and chemotherapy

authors： Troke P,Aguirrebengoa K,Arteaga C,Ellis D,Heath CH,Lutsar I,Rovira M,Nguyen Q,Slavin M,Chen SC,Global Scedosporium Study Group.

更新日期：2008-05-01 00:00:00

abstract：:Viridin B, a bacteriocin produced by Streptococcus mitis, copurified with the alpha-hemolysin after ammonium sulfate precipitation and gel filtration on Sephadex G-200. The bacteriocin and hemolysin were separated in some instances by ion-exchange chromatography on diethylaminoethyl-Sephadex A-50, but the two substanc...

journal_title：Antimicrobial agents and chemotherapy

authors： Apelgren LD,Dajani AS

更新日期：1979-03-01 00:00:00

abstract：:Platelet microbicidal proteins (PMPs), small cationic peptides released at sites of endovascular damage, kill common bloodstream pathogens in vitro. Our group previously showed that in vitro resistance of clinical staphylococcal and viridans group streptococcal bacteremic strains to PMPs correlated with the diagnosis ...

journal_title：Antimicrobial agents and chemotherapy

authors： Bayer AS,Cheng D,Yeaman MR,Corey GR,McClelland RS,Harrel LJ,Fowler VG Jr

更新日期：1998-12-01 00:00:00

abstract：:The effect of protein binding on drug penetration into blister fluid was evaluated by using cefonicid, ceftizoxime, and cefotaxime. Drug concentrations in a chamber with a high surface area/volume ratio (i.e., paper disk) follow changes in serum more closely than do those in a chamber with a low surface area/volume ra...

journal_title：Antimicrobial agents and chemotherapy

authors： Shyu WC,Quintiliani R,Nightingale CH,Dudley MN

更新日期：1988-01-01 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：:We collected 1,353 strains of beta-hemolytic streptococci of groups A, B, C, and G (1,176 strains of which were group A) isolated in 26 institutions throughout Japan in 1972-1974. The strains were grouped and T-typed by our specific group-and T-factor sera, and the minimal inhibitory concentrations of 10 antibiotics w...

journal_title：Antimicrobial agents and chemotherapy

authors： Miyamoto Y,Takizawa K,Matsushima A,Asai Y,Nakatsuka S

更新日期：1978-03-01 00:00:00

abstract：:The Capnocytophaga sputigena isolate NOR, responsible for septicemia, was resistant to amoxicillin and narrow-spectrum cephalosporins. In a cloning experiment, a new gene, bla(CSP-1), was identified; this gene encodes a novel extended-spectrum beta-lactamase (ESBL) that shares only 52% and 49% identities with the CME-...

journal_title：Antimicrobial agents and chemotherapy

authors： Guillon H,Eb F,Mammeri H

更新日期：2010-05-01 00:00:00

abstract：:The cyclohexane triones are a novel group of synthetic antibacterial agents that are active against gram-positive bacteria, Haemophilus influenzae, and Mycobacterium smegmatis. In general, these compounds behaved in a manner similar to that of hexachlorophene, inhibiting the transport of low-molecular-weight hydrophil...

journal_title：Antimicrobial agents and chemotherapy

authors： Lloyd WJ,Broadhurst AV,Hall MJ,Andrews KJ,Barber WE,Wong-Kai-In P

更新日期：1988-06-01 00:00:00

abstract：:Ethambutol (EMB) is a major component of the first-line therapy of tuberculosis. Mutations in codon 306 of embB (embB306) were suggested as a major resistance mechanism in clinical isolates. To directly analyze the impact of individual embB306 mutations on EMB resistance, we used allelic exchange experiments to genera...

journal_title：Antimicrobial agents and chemotherapy

authors： Plinke C,Walter K,Aly S,Ehlers S,Niemann S

更新日期：2011-06-01 00:00:00

abstract：:We evaluated the in vitro activity of piperacillin alone or in combination with the beta-lactamase inhibitor tazobactam against clinical isolates of Legionella species. At an inoculum of approximately 10(4) CFU, tazobactam, piperacillin, and the 8:1 combination had equivalent activities against Legionella spp. At an a...

journal_title：Antimicrobial agents and chemotherapy

authors： Collins LA,Wennersten CB,Ferraro MJ,Moellering RC Jr,Eliopoulos GM

更新日期：1994-01-01 00:00:00

abstract：:MCC-478 is a newly synthesized 2-amino-6-arylthio-9-phosphonomethoxyethylpurine bis(2,2,2-trifluoroethyl) ester derivative. MCC-478 showed a substantially higher (ca. 80-fold) anti-hepatitis B virus (HBV) activity than that of lamivudine, despite no significant anti-human immunodeficiency virus activity. Since the bis...

journal_title：Antimicrobial agents and chemotherapy

authors： Kamiya N,Kubota A,Iwase Y,Sekiya K,Ubasawa M,Yuasa S

更新日期：2002-09-01 00:00:00

abstract：:Resistance to macrolides and ketolides occurs mainly via alterations in RNA moieties of the drug-binding site. Using an A2058G mutant of Mycobacterium smegmatis, additional telithromycin resistance was acquired via deletion of 15 residues from protein L22. Molecular modeling, based on the crystal structure of the larg...

journal_title：Antimicrobial agents and chemotherapy

authors： Berisio R,Corti N,Pfister P,Yonath A,Böttger EC

更新日期：2006-11-01 00:00:00

abstract：:Acanthamoeba keratitis is a severe ocular infection secondary to accidental macro- or microscopic trauma of the cornea. Starting in 1985, a dramatic increase of this infection was recorded along with the spread of contact lens use. This protozoal disease is difficult to treat because of the scarcity of efficacious top...

journal_title：Antimicrobial agents and chemotherapy

authors： Gatti S,Cevini C,Bruno A,Penso G,Rama P,Scaglia M

更新日期：1998-09-01 00:00:00

abstract：:The antimalarial drug quinine has been shown to impair human polymorphonuclear leukocyte (PMN) functions. To gain insight into the mechanism of this phenomenon, we investigated quinine uptake by PMN with a fluorometric assay based on the fluorescence properties of this drug. After 30 min of incubation at 37 degrees C ...

journal_title：Antimicrobial agents and chemotherapy

authors： el Benna J,Pasquier C,Labro MT

更新日期：1991-07-01 00:00:00

abstract：:Pseudomonas aeruginosa AH, isolated in Ankara, Turkey, was highly resistant to ceftazidime (MIC, 128 microg/ml) and produced a beta-lactamase that gave a doublet of bands at pIs 8.7 and 8.9. beta-Lactamase production was transferable to P. aeruginosa PU21 by conjugation and was determined by a ca. 450-kb plasmid, pMLH...

journal_title：Antimicrobial agents and chemotherapy

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

更新日期：1997-04-01 00:00:00

abstract：:The resistome of P. aeruginosa for three β-lactam antibiotics, namely, ceftazidime, imipenem, and meropenem, was deciphered by screening a comprehensive PA14 mutant library for mutants with increased or reduced susceptibility to these antimicrobials. Confirmation of the phenotypes of all selected mutants was performed...

journal_title：Antimicrobial agents and chemotherapy

authors： Alvarez-Ortega C,Wiegand I,Olivares J,Hancock RE,Martínez JL

更新日期：2010-10-01 00:00:00

abstract：:Strains of Enterobacter cloacae were selected on the basis of resistance to aztreonam, ceftazidime, moxalactam, or imipenem. All strains produced the same E2 beta-lactamase, with an isoelectric point greater than 9.5 and with high hydrolytic activity in the presence of cephaloridine. Resistance to beta-lactams could n...

journal_title：Antimicrobial agents and chemotherapy

authors： Bush K,Tanaka SK,Bonner DP,Sykes RB

更新日期：1985-04-01 00:00:00

abstract：:The aromatic diamidines represent a class of compounds with broad-spectrum antimicrobial activity; however, their development is hindered by a lack of understanding of their mechanism of antimicrobial action. DB75 [2,5-bis(4-amidinophenyl)furan] is a trypanocidal aromatic diamidine that was originally developed as a s...

journal_title：Antimicrobial agents and chemotherapy

authors： Lanteri CA,Trumpower BL,Tidwell RR,Meshnick SR

更新日期：2004-10-01 00:00:00

abstract：:Moxifloxacin (MXF) is a fluoroquinolone antibiotic that is effective against respiratory infections. However, the mechanisms of MXF lung diffusion are unknown. Active transport in other tissues has been suggested for several members of the fluoroquinolone family. In this study, transport of MXF was systematically inve...

journal_title：Antimicrobial agents and chemotherapy

authors： Brillault J,De Castro WV,Harnois T,Kitzis A,Olivier JC,Couet W

更新日期：2009-04-01 00:00:00

abstract：:Penicillin-binding protein 5 (PBP5) is one of the most abundant PBPs in Pseudomonas aeruginosa. Although its main function is that of a cell wall dd-carboxypeptidase, it possesses sufficient β-lactamase activity to contribute to the ability of P. aeruginosa to resist the antibiotic activity of the β-lactams. The study...

journal_title：Antimicrobial agents and chemotherapy

authors： Smith JD,Kumarasiri M,Zhang W,Hesek D,Lee M,Toth M,Vakulenko S,Fisher JF,Mobashery S,Chen Y

更新日期：2013-07-01 00:00:00

abstract：:We have previously identified a target site in HIV-1 RNA that was particularly accessible to a ribozyme and a short hairpin RNA (shRNA). To design small interfering RNAs (siRNAs) targeting this site, we evaluated the effects of siRNAs with different lengths on HIV-1 production. The potency and efficacy of these siRNAs...

journal_title：Antimicrobial agents and chemotherapy

authors： Scarborough RJ,Adams KL,Daher A,Gatignol A

更新日期：2015-09-01 00:00:00

abstract：:Given the greater than 90% lethality of clinical central nervous system (CNS) aspergillosis despite current therapies, there is a need for an animal model to study therapeutic strategies. We previously established a model of CNS aspergillosis by intracerebral infection and report here the results of treatment with the...

journal_title：Antimicrobial agents and chemotherapy

authors： Chiller TM,Sobel RA,Luque JC,Clemons KV,Stevens DA

更新日期：2003-02-01 00:00:00

abstract：:A mouse model was developed to evaluate the efficacy of antibiotic treatment of pneumonic plague; streptomycin was compared to antibiotics with which there is little or no clinical experience. Infection was induced by inhalation of aerosolized Yersinia pestis organisms. Antibiotics were administered by intraperitoneal...

journal_title：Antimicrobial agents and chemotherapy

authors： Byrne WR,Welkos SL,Pitt ML,Davis KJ,Brueckner RP,Ezzell JW,Nelson GO,Vaccaro JR,Battersby LC,Friedlander AM

更新日期：1998-03-01 00:00:00

abstract：:The role of pyrazinamide in the current treatment of multidrug-resistant (MDR) tuberculosis (TB) is uncertain. From a territory-wide registry of MDR-TB cases diagnosed between 1995 and 2009, we assembled a cohort of 194 patients with MDR pulmonary TB given fluoroquinolone-containing regimens. Stratified by pyrazinamid...

journal_title：Antimicrobial agents and chemotherapy

authors： Chang KC,Leung CC,Yew WW,Leung EC,Leung WM,Tam CM,Zhang Y

更新日期：2012-11-01 00:00:00

abstract：:Penicillin-binding proteins (PBPs) of 15 selected penicillin- and amoxicillin-resistant Streptococcus pneumoniae isolates (MICs of 2 to 8 and 8 to 16 microg/ml, respectively) were studied. In addition to typical changes in PBPs 1A and 2X, these strains had 10 unique changes in PBP 2B, including a (618)A-G substitution...

journal_title：Antimicrobial agents and chemotherapy

authors： Kosowska K,Jacobs MR,Bajaksouzian S,Koeth L,Appelbaum PC

更新日期：2004-10-01 00:00:00

abstract：:Intestinal endogenous members of the family Enterobacteriaceae were eliminated in 12 human volunteers treated with 400 or 800 mg of oral norfloxacin per day for 5 days. No clones resistant to quinolone derivatives were isolated. Counts of aerotolerant streptococci were affected to various degrees, depending on their s...

journal_title：Antimicrobial agents and chemotherapy

authors： Pecquet S,Andremont A,Tancrède C

更新日期：1986-06-01 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：:Between 1986 and 1988, the incidence of ampicillin-resistant enterococci increased sevenfold at a university-affiliated hospital. Forty-three patients acquired nosocomial infections with ampicillin-resistant enterococci, most of which were also resistant to mezlocillin, piperacillin, and imipenem. An analysis of plasm...

journal_title：Antimicrobial agents and chemotherapy

authors： Boyce JM,Opal SM,Potter-Bynoe G,LaForge RG,Zervos MJ,Furtado G,Victor G,Medeiros AA

更新日期：1992-05-01 00:00:00

abstract：:Antibiotics disrupt the intestinal microbiota, rendering patients vulnerable to colonization by exogenous pathogens. Intermicrobial interactions may attenuate this effect. Incubation with ceftriaxone-resistant, ccrA-positive, β-lactamase-producing Bacteroides strains raised the minimum bactericidal concentration of ce...

journal_title：Antimicrobial agents and chemotherapy

authors： Stiefel U,Tima MA,Nerandzic MM

更新日期：2015-01-01 00:00:00