Substrate inhibition of beta-lactamases, a method for predicting enzymatic stability of cephalosporins.

abstract：:The respiratory syncytial virus (RSV) L protein is a viral RNA-dependent RNA polymerase that contains multiple enzyme activities required for RSV replication. The RSV L inhibitors described in literature are limited by their cytotoxicity or the lack of RSV B subtype coverage. Here, we characterize a new RSV L inhibito...

journal_title：Antimicrobial agents and chemotherapy

authors： Tiong-Yip CL,Aschenbrenner L,Johnson KD,McLaughlin RE,Fan J,Challa S,Xiong H,Yu Q

更新日期：2014-07-01 00:00:00

abstract：:Pharmacodynamic parameters have become increasingly important for the determination of the optimal dosing schedules of antibiotics. In this study, the postantibiotic effects (PAEs), the postantibiotic sub-MIC effects (PA SMEs), and the sub-MIC effects (SMEs) of roxithromycin, clarithromycin, and azithromycin on refere...

journal_title：Antimicrobial agents and chemotherapy

authors： Odenholt-Tornqvist I,Löwdin E,Cars O

更新日期：1995-01-01 00:00:00

abstract：:Concentration-QTc modeling was applied to pretomanid, a new nitroimidazooxazine antituberculosis drug. Data came from eight phase 2 and phase 3 studies. Besides pretomanid alone, various combinations with bedaquiline, linezolid, moxifloxacin, and pyrazinamide were considered; special attention was given to the bedaqui...

journal_title：Antimicrobial agents and chemotherapy

authors： Li H,Salinger DH,Everitt D,Li M,Del Parigi A,Mendel C,Nedelman JR

更新日期：2019-09-23 00:00:00

abstract：:The dose dependence of mezlocillin pharmacokinetics was examined in relation to renal function after intravenous doses of 1 and 5 g in 16 subjects with various degrees of renal impairment. Dose and time-average model-independent physiological parameters were calculated from plasma concentration and urinary excretion d...

journal_title：Antimicrobial agents and chemotherapy

authors： Mangione A,Boudinot FD,Schultz RM,Jusko WJ

更新日期：1982-03-01 00:00:00

abstract：:Against 198 viridans group streptococci, 25 Streptococcus bovis strains, and 5 Cardiobacterium hominis strains, MICs of DX-619, a des-F(6)-quinolone, were between 0.004 and 0.25 microg/ml. These MICs were lower than those of other quinolones (< or = 0.008 to > 32 microg/ml). Beta-lactam MICs were between < or = 0.008 ...

journal_title：Antimicrobial agents and chemotherapy

authors： Kosowska-Shick K,Smith K,Bogdanovich T,Ednie LM,Jones RN,Appelbaum PC

更新日期：2006-12-01 00:00:00

abstract：:Cryptic species of Aspergillus fumigatus, including the Aspergillus viridinutans species complex, are increasingly reported to be causes of invasive aspergillosis. Their identification is clinically relevant, as these species frequently have intrinsic resistance to common antifungals. We evaluated the susceptibilities...

journal_title：Antimicrobial agents and chemotherapy

authors： Lyskova P,Hubka V,Svobodova L,Barrs V,Dhand NK,Yaguchi T,Matsuzawa T,Horie Y,Kolarik M,Dobias R,Hamal P

更新日期：2018-03-27 00:00:00

abstract：:The susceptibilities of a range of gram-positive and gram-negative microbial pathogens to clofazimine and its analog B669 (0.1 to 32 micrograms/ml), as well as the effects of these agents on membrane phospholipid metabolism in Staphylococcus aureus and Escherichia coli, have been investigated in vitro. Gram-positive b...

journal_title：Antimicrobial agents and chemotherapy

authors： Van Rensburg CE,Jooné GK,O'Sullivan JF,Anderson R

更新日期：1992-12-01 00:00:00

abstract：:Actithiazic acid and alpha-methyldethiobiotin inhibited the conversion of dethiobiotin to biotin resting-cell suspensions of Escherichia coli. The concentrations which effected 50% inhibition were 0.45 and 1.1 microM for actithiazic acid and alpha-methyldethiobiotin, respectively. Cells grown in low concentrations of ...

journal_title：Antimicrobial agents and chemotherapy

authors： Eisenberg MA,Hsiung SC

更新日期：1982-01-01 00:00:00

abstract：:As part of the CANCER Antimicrobial Surveillance Program in North America, a Pseudomonas aeruginosa isolate, strain 07-406, was shown to possess a metallo-beta-lactamase, designated VIM-7. bla(VIM-7) is located on a 24-kb plasmid which can be readily transferred into Enterobacteriaceae and other pseudomonads. This is ...

journal_title：Antimicrobial agents and chemotherapy

authors： Toleman MA,Rolston K,Jones RN,Walsh TR

更新日期：2004-01-01 00:00:00

abstract：:The physicochemical constants and some structural parameters (topological, steric, and electronic) of eight third-generation monofluorate quinolones (six uncommercialized and two used clinically [ciprofloxacin and enrofloxacin]) were determined: pKa, intrinsic solubility (S0), chromatographic capacity factor, partitio...

journal_title：Antimicrobial agents and chemotherapy

authors： Escribano E,Calpena AC,Garrigues TM,Freixas J,Domenech J,Moreno J

更新日期：1997-09-01 00:00:00

abstract：:Vulvovaginal candidiasis (VVC) is a global health problem affecting ∼75% of women at least once in their lifetime. Here we examined the epidemiology of VVC in a patient cohort to identify the causative organisms associated with VVC. Biofilm-forming capacity and antifungal sensitivity profiles were also assessed. We re...

journal_title：Antimicrobial agents and chemotherapy

authors： Sherry L,Kean R,McKloud E,O'Donnell LE,Metcalfe R,Jones BL,Ramage G

更新日期：2017-08-24 00:00:00

abstract：:The antibiotic susceptibilities of 43 strains of Escherichia coli O157:H7 identified in the summer of 1996 in Japan were investigated. Growth of 90% of O157 strains was inhibited at a concentration of < or = 0.5 micro/ml by several agents including fosfomycin with glucose-6-phosphate. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Tsuboi I,Ida H,Yoshikawa E,Hiyoshi S,Yamaji E,Nakayama I,Nonomiya T,Shigenobu F,Shimizu M,O'Hara K,Sawai T,Mizuoka K

更新日期：1998-02-01 00:00:00

abstract：:Infection is one of the most important causes of titanium implant failure in vivo A developing prophylactic method involves the immobilization of antibiotics, especially vancomycin, onto the surface of the titanium implant. However, these methods have a limited effect in curbing multiple bacterial infections due to an...

journal_title：Antimicrobial agents and chemotherapy

authors： Nie B,Long T,Ao H,Zhou J,Tang T,Yue B

更新日期：2016-12-27 00:00:00

abstract：:To determine if saquinavir mesylate (saquinavir) is a substrate of human multidrug resistance-associated protein 1 (hMRP1 [ABCC1]) or hMRP2 (cMOAT, or ABCC2), MDCKII cells that overexpress either hMRP1 (MDCKII-MRP1) or hMRP2 (MDCKII-MRP2) were used to investigate saquinavir's cytotoxicity and transport in comparison w...

journal_title：Antimicrobial agents and chemotherapy

authors： Williams GC,Liu A,Knipp G,Sinko PJ

更新日期：2002-11-01 00:00:00

abstract：:CTX-M-type extended-spectrum beta-lactamases (ESBLs) have become increasingly common worldwide, with the notable exception of the United States, where TEM- and SHV-type ESBLs have appeared to predominate. We have noted the emergence of ESBLs in our health care system (the University Health System in San Antonio, TX), ...

journal_title：Antimicrobial agents and chemotherapy

authors： Lewis JS 2nd,Herrera M,Wickes B,Patterson JE,Jorgensen JH

更新日期：2007-11-01 00:00:00

abstract：:The metallo-β-lactamase VIM-4, mainly found in Pseudomonas aeruginosa or Acinetobacter baumannii, was produced in Escherichia coli and characterized by biochemical and X-ray techniques. A detailed kinetic study performed in the presence of Zn²+ at concentrations ranging from 0.4 to 100 μM showed that VIM-4 exhibits a ...

journal_title：Antimicrobial agents and chemotherapy

authors： Lassaux P,Traoré DA,Loisel E,Favier A,Docquier JD,Sohier JS,Laurent C,Bebrone C,Frère JM,Ferrer JL,Galleni M

更新日期：2011-03-01 00:00:00

abstract：:The phosphodiesterase inhibitor tetrahydrophthalazinone NPD-008 was explored by phenotypic in vitro screening, target validation and ultrastructural approaches against Trypanosoma cruzi NPD-008 displayed activity against different forms and strains of T. cruzi (EC50 = 6.6 - 39.5 μM), increased cAMP levels of T. cruzi ...

journal_title：Antimicrobial agents and chemotherapy

authors： de Araújo JS,Peres RB,Bernardino da Silva P,Batista MM,Sterk GJ,Maes L,Caljon G,Leurs R,de Koning HP,Kalejaiye TD,Soeiro MNC

更新日期：2020-12-23 00:00:00

abstract：:The treatment of woodchuck hepatitis virus infections with 1-(2'-deoxy-2'-fluoro-beta-D-arabinofuranosyl)-5-iodocytosine (FIAC) and 1-(2'-deoxy-2'-fluoro-beta-D-arabinofuranosyl)-5-methyluracil (FMAU), given intraperitoneally, caused complete and permanent decrease of serum virus endogenous DNA polymerase and viral DN...

journal_title：Antimicrobial agents and chemotherapy

authors： Fourel I,Hantz O,Watanabe KA,Jacquet C,Chomel B,Fox JJ,Trepo C

更新日期：1990-03-01 00:00:00

abstract：:The distribution of subclasses mefA and mefE of the mefA gene among 116 M-phenotype streptococci was as follows: pneumococci (38 strains had mefE and 4 mefA), viridans streptococci (49 mefE and 1 mefA), and Streptococcus pyogenes (24 mefA). Spain(9V)-3-14 and England(14)-9 clones of serotype 14 were dominant among pne...

journal_title：Antimicrobial agents and chemotherapy

authors： Ardanuy C,Tubau F,Liñares J,Domínguez MA,Pallarés R,Martín R,Spanish Pneumococcal Infection Study Network (G03\/103).

更新日期：2005-02-01 00:00:00

abstract：:Prolonged treatment of chronic hepatitis B virus (HBV) infection with lamivudine ([-]-beta-L-2',3'-dideoxy-3' thiacytidine) or famciclovir may select for viral mutants that are drug resistant due to point mutations in the polymerase gene. Determining whether such HBV mutants are sensitive to new antiviral agents is th...

journal_title：Antimicrobial agents and chemotherapy

authors： Chin R,Shaw T,Torresi J,Sozzi V,Trautwein C,Bock T,Manns M,Isom H,Furman P,Locarnini S

更新日期：2001-09-01 00:00:00

abstract：:Pyrosequencing was used to detect rapidly and estimate the number of 23S rRNA genes with a G2576T mutation in 43 linezolid-resistant and -susceptible clinical isolates of enterococci. The method showed 100% concordance with PCR-restriction fragment length polymorphism for detecting isolates homozygous for either G2576...

journal_title：Antimicrobial agents and chemotherapy

authors： Sinclair A,Arnold C,Woodford N

更新日期：2003-11-01 00:00:00

abstract：:The activity of cefotaxime, either alone or combined with an aminoglycoside, was determined against 50 isolates of Pseudomonas aeruginosa, of which 50, 33, and 10 were resistant to gentamicin, tobramycin, and amikacin, respectively. Cefotaxime inhibited 34 isolates at a concentration of 16 microgram/ml and all isolate...

journal_title：Antimicrobial agents and chemotherapy

authors： Murray PR

更新日期：1980-03-01 00:00:00

abstract：:Within wounds, microorganisms predominantly exist as biofilms. Biofilms are associated with chronic infections and represent a tremendous clinical challenge. As antibiotics are often ineffective against biofilms, use of dispersal agents as adjunctive, topical therapies for the treatment of wound infections involving b...

journal_title：Antimicrobial agents and chemotherapy

authors： Sanchez CJ Jr,Akers KS,Romano DR,Woodbury RL,Hardy SK,Murray CK,Wenke JC

更新日期：2014-08-01 00:00:00

abstract：:We previously showed that the mouse inorganic phosphate transporter Npt1 operates in the hepatic sinusoidal membrane transport of anionic drugs such as benzylpenicillin and mevalonic acid. In the present study, the mechanism of renal secretion of penem antibiotics was examined by using a Xenopus oocyte expression syst...

journal_title：Antimicrobial agents and chemotherapy

authors： Uchino H,Tamai I,Yabuuchi H,China K,Miyamoto K,Takeda E,Tsuji A

更新日期：2000-03-01 00:00:00

abstract：:The main aim of this study was to develop a standardized experimental assay to enable differential antimicrobial comparisons of test biocidal aerosols. This study represents the first chlorine-matched comparative assessment of the antimicrobial activities of aerosolized sodium hypochlorite, chlorine dioxide, and elect...

journal_title：Antimicrobial agents and chemotherapy

authors： Thorn RM,Robinson GM,Reynolds DM

更新日期：2013-05-01 00:00:00

abstract：:The anti-human immunodeficiency virus type I (anti-HIV-1) effects of gamma-glutamylcysteine ethyl ester (gamma-GCE; TEI-2306) were examined in vitro. In initial studies using a vigorously HIV-1-producing human T-lymphocytic cell line, gamma-GCE displayed a novel biphasic repressive effect on chronic HIV-1 infection th...

journal_title：Antimicrobial agents and chemotherapy

authors： Kubota S,Shetty S,Zhang H,Kitahara S,Pomerantz RJ

更新日期：1998-05-01 00:00:00

abstract：:Caseinomacropeptide (CMP) is a heterogeneous C-terminal fragment (residues 106 to 169) of bovine milk kappa-casein composed of glycosylated and phosphorylated forms of different genetic variants. We have demonstrated that CMP has growth-inhibitory activity against the oral opportunistic pathogens Streptococcus mutans ...

journal_title：Antimicrobial agents and chemotherapy

authors： Malkoski M,Dashper SG,O'Brien-Simpson NM,Talbo GH,Macris M,Cross KJ,Reynolds EC

更新日期：2001-08-01 00:00:00

abstract：:A simple technique with antibiotic-impregnated disks has been developed to demonstrate the antibiotic synergism of penicillins and aminoglycosides against enterococci. The two antibiotic disks are placed on inoculated plates so that the distance between their centers is less than the sum of the two radii of their prev...

journal_title：Antimicrobial agents and chemotherapy

authors： Lee WS,Komarmy L

更新日期：1975-01-01 00:00:00

abstract：:The adaptive resistance of Pseudomonas aeruginosa to aminoglycosides is known to occur during chronic lung infections in cystic fibrosis patients in response to nonlethal concentrations of aminoglycosides. Not only is it difficult to achieve high levels of drug throughout the dehydrated mucus in the lung, but also ste...

journal_title：Antimicrobial agents and chemotherapy

authors： Kindrachuk KN,Fernández L,Bains M,Hancock RE

更新日期：2011-05-01 00:00:00

abstract：:Here, we report the first autochthonous cases of infections caused by blaNDM-5 New Delhi metallo-β-lactamase-producing Escherichia coli strains recovered from urine and blood specimens of three patients from Algeria between January 2012 and February 2013. The three isolates belong to sequence type 2659 and they coexpr...

journal_title：Antimicrobial agents and chemotherapy

authors： Sassi A,Loucif L,Gupta SK,Dekhil M,Chettibi H,Rolain JM

更新日期：2014-09-01 00:00:00