Characterization of penicillin-binding protein 2 of Staphylococcus aureus: deacylation reaction and identification of two penicillin-binding peptides.

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：:There are several major differences between the penicillin-binding proteins (PBPs) of highly penicillin-resistant and -susceptible strains of pneumococci. The highest-molecular-size PBP 1a (98 kilodaltons [kDa]) of susceptible pneumococci is not detectable in resistant bacteria. Instead, resistant strains contain a PB...

journal_title：Antimicrobial agents and chemotherapy

authors： Hakenbeck R,Ellerbrok H,Briese T,Handwerger S,Tomasz A

更新日期：1986-10-01 00:00:00

abstract：:Initial studies indicate that rifampin may be useful for the treatment of Staphylococcus aureus infections. Because bacterial resistance to rifampin may develop rapidly, its widespread use could result in the emergence of a resistant flora. This study evaluates the effectiveness of rifampin in reducing the nasal carri...

journal_title：Antimicrobial agents and chemotherapy

authors： Sande MA,Mandell GL

更新日期：1975-03-01 00:00:00

abstract：:Groups of mice infected intravenously with Candida albicans were treated intraperitoneally with amphotericin B, caspofungin, or fluconazole, starting at intervals before and after challenge. Survival was longest and tissue burdens were most reduced with early treatment, and survival times fell proportionately as treat...

journal_title：Antimicrobial agents and chemotherapy

authors： MacCallum DM,Odds FC

更新日期：2004-12-01 00:00:00

abstract：:The drug Ro5-3335 [7-chloro-5-(2-pyrryl)-3H-1,4-benzodiazepin-2(H)-one] inhibits human immunodeficiency virus type 1 (HIV-1) gene expression at the transcriptional level through interference with Tat-mediated transactivation (M.-C. Hsu, A. D. Schutt, M. Holly, L. W. Slice, M. I. Sherman, D. D. Richman, M. J. Potash, a...

journal_title：Antimicrobial agents and chemotherapy

authors： Witvrouw M,Pauwels R,Vandamme AM,Schols D,Reymen D,Yamamoto N,Desmyter J,De Clercq E

更新日期：1992-12-01 00:00:00

abstract：:Different mechanisms of erythromycin resistance predominate in group C and G streptococcus (GCS and GGS, respectively) isolates collected from 1992 to 1995 in Finland. Of the 21 erythromycin-resistant GCS and 32 erythromycin-resistant GGS isolates, 95% had the mefA or mefE drug efflux gene and 94% had the ermTR methyl...

journal_title：Antimicrobial agents and chemotherapy

authors： Kataja J,Seppälä H,Skurnik M,Sarkkinen H,Huovinen P

更新日期：1998-06-01 00:00:00

abstract：:The increasing incidence and severity of infection by Clostridium difficile have stimulated attempts to develop new antimicrobial therapies. We report here the relative abilities of two antibiotics (metronidazole and vancomycin) in current use for treating C. difficile infection and of a third antimicrobial, surotomyc...

journal_title：Antimicrobial agents and chemotherapy

authors： Bouillaut L,McBride S,Sorg JA,Schmidt DJ,Suarez JM,Tzipori S,Mascio C,Chesnel L,Sonenshein AL

更新日期：2015-07-01 00:00:00

abstract：:The new oral 200-mg rifamycin SV MMX modified-release tablets, designed to deliver rifamycin SV directly into the colonic lumen, offer considerable advantages over the existing immediate-release antidiarrheic formulations. In two pharmacokinetics studies of healthy volunteers, the absorption, urinary excretion, and fe...

journal_title：Antimicrobial agents and chemotherapy

authors： Di Stefano AF,Rusca A,Loprete L,Dröge MJ,Moro L,Assandri A

更新日期：2011-05-01 00:00:00

abstract：:Rabbits with Staphylococcus aureus endocarditis were treated with cephalothin or ceftazidime to determine whether differences in in vitro activity would result in differences in in vivo efficacy. Antibiotics were administered in doses equivalent to maximum recommended human doses, and results of laboratory tests to pr...

journal_title：Antimicrobial agents and chemotherapy

authors： Baker RL,Fass RJ

更新日期：1984-08-01 00:00:00

abstract：:We investigated the evolution of resistance to the antifungal drug itraconazole in replicate populations of Aspergillus fumigatus that were founded from a strain with a genotype of sensitivity to a single drug and then propagated under uniform conditions. For each population, conidia were serially transferred 10 times...

journal_title：Antimicrobial agents and chemotherapy

authors： da Silva Ferreira ME,Capellaro JL,dos Reis Marques E,Malavazi I,Perlin D,Park S,Anderson JB,Colombo AL,Arthington-Skaggs BA,Goldman MH,Goldman GH

更新日期：2004-11-01 00:00:00

abstract：:Topical blockade of the gp41 fusogenic protein of HIV-1 is one possible strategy by which microbicides could prevent HIV transmission, working early against infection, by inhibiting viral entry into host cells. In this study, we examined the potential of gp41 fusion inhibitors (FIs) as candidate anti-HIV microbicides....

journal_title：Antimicrobial agents and chemotherapy

authors： Harman S,Herrera C,Armanasco N,Nuttall J,Shattock RJ

更新日期：2012-05-01 00:00:00

abstract：:UK-18892 is a new aminoglycoside antibiotic, a derivative of kanamycin A structurally related to amikacin. It was found to be active against a wide range of pathogenic bacteria, including many gentamicin-resistant strains. The spectrum and degree of activity of UK-18892 were similar to those of amikacin, and differenc...

journal_title：Antimicrobial agents and chemotherapy

authors： Wise R,Andrews JM

更新日期：1978-08-01 00:00:00

abstract：:To study whether the capability of horizontal DNA transfer is associated with metronidazole resistance in Helicobacter pylori, a total of 81 clinical isolates were tested for MICs of metronidazole (MTZ). The MIC assays were performed by using the E-test and reconfirmed by the agar dilution method. Natural competence a...

journal_title：Antimicrobial agents and chemotherapy

authors： Yeh YC,Chang KC,Yang JC,Fang CT,Wang JT

更新日期：2002-05-01 00:00:00

abstract：:Boronic acid transition state inhibitors (BATSIs) with R1 side chains of cefotaxime and ceftazidime were assayed against SHV-1, SHV-2, SHV-5, D104K, and D104K G238S beta-lactamases. The D104K variant was the most susceptible to inhibition by the ceftazidime BATSI (Ki, 730+/-80 nM), while the D104K G238S variant was th...

journal_title：Antimicrobial agents and chemotherapy

authors： Thomson JM,Prati F,Bethel CR,Bonomo RA

更新日期：2007-04-01 00:00:00

abstract：:The outer membrane permeability to meropenem and imipenem in Escherichia coli K-12 was investigated, and its porin-deficient mutants were transformed with a constructed vector carrying the carbapenem-hydrolyzing CphA metallo-beta-lactamase gene. By using the method of Zimmermann and Rosselet, meropenem was shown to pe...

journal_title：Antimicrobial agents and chemotherapy

authors： Cornaglia G,Guan L,Fontana R,Satta G

更新日期：1992-09-01 00:00:00

abstract：:We studied the influence of the lipid/amphotericin B (AMB) ratio and the phospholipid type on the in vitro renal cell toxicity and antifungal efficacy of lipid-associated AMB (L-AMB). L-AMB was prepared at one of two different lipid/AMB ratios (1 and 40) by incubating AMB with empty small unilamellar vesicles, made fr...

journal_title：Antimicrobial agents and chemotherapy

authors： Joly V,Bolard J,Saint-Julien L,Carbon C,Yeni P

更新日期：1992-02-01 00:00:00

abstract：:Ramoplanin is an actinomycetes-derived antibiotic with broad-spectrum activity against Gram-positive bacteria that has been evaluated in clinical trials for the treatment of gastrointestinal vancomycin-resistant enterococci (VRE) and Clostridium difficile infections. Recent studies have proposed that ramoplanin binds ...

journal_title：Antimicrobial agents and chemotherapy

authors： Cheng M,Huang JX,Ramu S,Butler MS,Cooper MA

更新日期：2014-11-01 00:00:00

abstract：:Cyclic phosphate derivative of DHPG, 2'-nor-cGMP [9-[(2-hydroxy-1,3,2-dioxaphosphorinan-5-yl)oxymethyl]-guani ne phosphate-oxide] was evaluated for activity against guinea pig cytomegalovirus (GPCMV) infection in cultured guinea pig embryo cells and in guinea pigs. By virus yield reduction and plaque reduction assays,...

journal_title：Antimicrobial agents and chemotherapy

authors： Yang ZH,Lucia HL,Tolman RL,Colonno RJ,Hsiung GD

更新日期：1989-09-01 00:00:00

abstract：:Active nuclear importation of the human immunodeficiency virus (HIV) type 1 (HIV-1) preintegration complex (PIC) is required for the productive infection of nondividing cells, but it is believed to be dispensable for the infection of proliferating cells, such as activated T lymphocytes. To investigate this question, w...

journal_title：Antimicrobial agents and chemotherapy

authors： Haffar OK,Smithgall MD,Popov S,Ulrich P,Bruce AG,Nadler SG,Cerami A,Bukrinsky MI

更新日期：1998-05-01 00:00:00

abstract：:Posaconazole (POS) is a new antifungal agent for prevention and therapy of mycoses in immunocompromised patients. Variable POS pharmacokinetics after oral dosing may influence efficacy: a trough threshold of 0.5 μg/ml has been recently proposed. Measurement of POS plasma concentrations by complex chromatographic techn...

journal_title：Antimicrobial agents and chemotherapy

authors： Rochat B,Pascual A,Pesse B,Lamoth F,Sanglard D,Decosterd LA,Bille J,Marchetti O

更新日期：2010-12-01 00:00:00

abstract：:We investigated the antistaphylococcal activity of daptomycin, vancomycin, oxacillin, gentamicin, and rifampin in human monocyte-derived macrophages. Compared with vancomycin and oxacillin, daptomycin had the most rapid and greatest antibacterial activity, but that of oxacillin was most sustained. The combination of d...

journal_title：Antimicrobial agents and chemotherapy

authors： Baltch AL,Ritz WJ,Bopp LH,Michelsen PB,Smith RP

更新日期：2007-04-01 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

abstract：:The Helicobacter pylori SS1 mouse model was used to characterize the development of resistance in H. pylori after treatment with metronidazole monotherapy and to examine the effect of prior exposure to metronidazole on the efficacy of a metronidazole-containing eradication regimen. Mice colonized with the metronidazol...

journal_title：Antimicrobial agents and chemotherapy

authors： Jenks PJ,Labigne A,Ferrero RL

更新日期：1999-04-01 00:00:00

abstract：:Antimalarial 9-anilinoacridines are potent inhibitors of parasite DNA topoisomerase II both in vitro and in situ. 3,6-diamino substitution on the acridine ring greatly improves parasiticidal activity against Plasmodium falciparum by targeting DNA topoisomerase II. A series of 9-anilinoacridines were investigated for t...

journal_title：Antimicrobial agents and chemotherapy

authors： Auparakkitanon S,Noonpakdee W,Ralph RK,Denny WA,Wilairat P

更新日期：2003-12-01 00:00:00

abstract：:The antimicrobial activities of trovafloxacin, moxifloxacin, sanfetrinem, quinupristin-dalfopristin, and 14 other antimicrobial agents against 218 Bacteroides fragilis group strains were determined. A group of 10 imipenem-resistant strains were also tested. Imipenem, meropenem, and sanfetrinem had the lowest MICs of a...

journal_title：Antimicrobial agents and chemotherapy

authors： Betriu C,Gómez M,Palau ML,Sánchez A,Picazo JJ

更新日期：1999-09-01 00:00:00

abstract：:"Shock and kill" therapeutic strategies toward HIV eradication are based on the transcriptional activation of latent HIV with a latency-reversing agent (LRA) and the consequent killing of the reactivated cell by either the cytopathic effect of HIV or an arm of the immune system. We have recently found several benzotri...

journal_title：Antimicrobial agents and chemotherapy

authors： Sorensen ES,Macedo AB,Resop RS,Howard JN,Nell R,Sarabia I,Newman D,Ren Y,Jones RB,Planelles V,Spivak AM,Bosque A

更新日期：2020-07-22 00:00:00

abstract：:To assess the potential for the induction of antimicrobial resistance following repeated subinhibitory exposures to the combination minocycline (MIN), rifampin (RIF), and chlorhexidine (CHX), a total of 29 clinical microbial pathogenic isolates were repeatedly exposed to subinhibitory concentrations of MIN, RIF, and C...

journal_title：Antimicrobial agents and chemotherapy

authors： Rosenblatt J,Vargas-Cruz N,Reitzel RA,Raad II

更新日期：2019-04-25 00:00:00

abstract：:MICs of a set of cephalosporins against a variety of gram-positive and gram-negative pathogens showed no strong correlations with the rate at which these inhibitors acylate or are deacylated by beta-lactam-sensitive DD-peptidases excreted by Streptomyces sp. strain R61 and Actinomadura sp. strain R39. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Boyd DB,Ott JL

更新日期：1986-05-01 00:00:00

abstract：:Antimicrobial cationic peptides are ubiquitous in nature and are thought to be a component of the first line of defense against infectious agents. It is widely believed that the killing mechanism of these peptides on bacteria involves an interaction with the cytoplasmic membrane. Cationic peptides from different struc...

journal_title：Antimicrobial agents and chemotherapy

authors： Friedrich CL,Moyles D,Beveridge TJ,Hancock RE

更新日期：2000-08-01 00:00:00

abstract：:The objective of this study was to assess the association between previous antibiotic use, particularly long-term prophylaxis, and the occurrence of subsequent resistant infections in children with index infections due to extended-spectrum-cephalosporin-resistant Enterobacteriaceae We also investigated the concordance...

journal_title：Antimicrobial agents and chemotherapy

authors： Das S,Adler AL,Miles-Jay A,Kronman MP,Qin X,Weissman SJ,Burnham CA,Elward A,Newland JG,Selvarangan R,Sullivan KV,Zaoutis T,Zerr DM

更新日期：2017-04-24 00:00:00