Emergence and nosocomial transmission of ampicillin-resistant enterococci.

abstract：:The susceptibility to 14 antimicrobial agents and the mechanisms of aminopenicillin resistance were studied in 197 clinical isolates of Haemophilus influenzae--109 isolated in 2007 (study group) and 88 isolated in 1997 (control group). Community antibiotic consumption trends were also examined. H. influenzae strains w...

journal_title：Antimicrobial agents and chemotherapy

authors： García-Cobos S,Campos J,Cercenado E,Román F,Lázaro E,Pérez-Vázquez M,de Abajo F,Oteo J

更新日期：2008-08-01 00:00:00

abstract：:Multivariate techniques such as principal component analysis or similar factor analysis help in analyses of the simultaneous interrelationships among several variables. A comparative multivariate analysis on the in vitro activities of eight antimicrobial agents, including the novel molecule daptomycin, is presented. M...

journal_title：Antimicrobial agents and chemotherapy

authors： Hernández JM,Conforti P

更新日期：1994-02-01 00:00:00

abstract：:A dipeptide lantibiotic, named Smb, in Streptococcus mutans GS5 was characterized by molecular genetic approaches. The Smb biosynthesis gene locus is encoded by a 9.5-kb region of chromosomal DNA and consists of seven genes in the order smbM1, -T, -F, -M2, -G, -A, -B. This operon is not present in some other strains o...

journal_title：Antimicrobial agents and chemotherapy

authors： Yonezawa H,Kuramitsu HK

更新日期：2005-02-01 00:00:00

abstract：:Viral regulatory complexes perform critical functions during virus replication and are important targets for therapeutic intervention. In HIV, the Tat and Rev proteins form complexes with multiple viral and cellular factors to direct transcription and export of the viral RNA. These complexes are composed of many prote...

journal_title：Antimicrobial agents and chemotherapy

authors： Nakamura RL,Burlingame MA,Yang S,Crosby DC,Talbot DJ,Chui K,Frankel AD,Renslo AR

更新日期：2017-06-27 00:00:00

abstract：:Rift Valley fever virus (RVFV) is an emerging infectious pathogen that causes severe disease in humans and livestock and has the potential for global spread. There are currently no proven safe and effective treatment options for RVFV infection. Inhibition of RNA binding to RVFV nucleocapsid protein (N) represents an a...

journal_title：Antimicrobial agents and chemotherapy

authors： Ellenbecker M,Lanchy JM,Lodmell JS

更新日期：2014-12-01 00:00:00

abstract：:NorC, a new efflux pump, like NorB, contributes to quinolone resistance that includes resistance to moxifloxacin and sparfloxacin in Staphylococcus aureus. norC expression, like that of norB and tet38, is negatively regulated by MgrA, and overexpression of both norC and norB contributes to the quinolone resistance phe...

journal_title：Antimicrobial agents and chemotherapy

authors： Truong-Bolduc QC,Strahilevitz J,Hooper DC

更新日期：2006-03-01 00:00:00

abstract：:Novel penem molecules with heterocycle substitutions at the 6 position via a methylidene linkage were investigated for their activities and efficacy as beta-lactamase inhibitors. The concentrations of these molecules that resulted in 50% inhibition of enzyme activity were 0.4 to 3.1 nM for the TEM-1 enzyme, 7.8 to 72 ...

journal_title：Antimicrobial agents and chemotherapy

authors： Weiss WJ,Petersen PJ,Murphy TM,Tardio L,Yang Y,Bradford PA,Venkatesan AM,Abe T,Isoda T,Mihira A,Ushirogochi H,Takasake T,Projan S,O'Connell J,Mansour TS

更新日期：2004-12-01 00:00:00

abstract：:Klebsiella oxytoca 1731, which showed a wide spectrum of resistance to beta-lactams, including cefoxitin, was isolated in 1994 from a patient in Genoa, Italy. This strain contained a plasmid-mediated AmpC beta-lactamase with a pI of 7.25. Sequencing of the corresponding DNA of K. oxytoca 1731 revealed 96 and 97% ident...

journal_title：Antimicrobial agents and chemotherapy

authors： Marchese A,Arlet G,Schito GC,Lagrange PH,Philippon A

更新日期：1998-02-01 00:00:00

abstract：:The antileishmanial efficacies of four proprietary amphotericin B (AmB) formulations (Fungizone, AmBisome, Abelcet, and Amphocil) and an experimental nonionic surfactant vesicle (NIV) formulation were compared in a murine model of acute visceral leishmaniasis. By a multiple-dosing regimen, groups of Leishmania donovan...

journal_title：Antimicrobial agents and chemotherapy

authors： Mullen AB,Carter KC,Baillie AJ

更新日期：1997-10-01 00:00:00

abstract：:Systemic candidiasis is a leading cause of nosocomial bloodstream infection with a high mortality rate despite treatment. Immune-based strategies are needed to improve outcomes. We previously reported that genetic deficiency in the chemokine receptor CCR1 improves survival and ameliorates tissue damage in Candida-infe...

journal_title：Antimicrobial agents and chemotherapy

authors： Lionakis MS,Albert ND,Swamydas M,Lee CR,Loetscher P,Kontoyiannis DP

更新日期：2017-02-23 00:00:00

abstract：:Metronidazole (MDZ) and related 5-nitroimidazoles are the recommended drugs for treatment of trichomoniasis, a sexually transmitted disease caused by the protozoan parasite Trichomonas vaginalis. However, novel treatment options are needed, as recent reports have claimed resistance to these drugs in T. vaginalis isola...

journal_title：Antimicrobial agents and chemotherapy

authors： Mallo N,Lamas J,Leiro JM

更新日期：2013-06-01 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 efficacy of single-dose therapy with 3 g of cephalexin was evaluated in 129 women with symptoms of acute uncomplicated lower urinary tract infections. Of 91 patients with significant bacteriuria, 61 (67%) were cured of their original infection; this was similar to the 54 to 79% cure rates reported in unselected po...

journal_title：Antimicrobial agents and chemotherapy

authors： Cardenas J,Quinn EL,Rooker G,Bavinger J,Pohlod D

更新日期：1986-03-01 00:00:00

abstract：:The aims of the study were to investigate the prevalence of azole resistance among Aspergillus fumigatus clinical isolates. A total of 533 clinical isolates that had been collected between 1995 and 2006, from 441 patients, were screened. No resistance was detected in isolates collected between 1995 and 1997. Starting ...

journal_title：Antimicrobial agents and chemotherapy

authors： Lazzarini C,Esposto MC,Prigitano A,Cogliati M,De Lorenzis G,Tortorano AM

更新日期：2015-11-09 00:00:00

abstract：:T-8581 is a new water-soluble triazole antifungal agent. The geometric mean IC80s (GM-IC80S; where the IC80 is the lowest drug concentration which reduced the optical density at 630 nm by 80% compared with the optical density at 630 nm of the drug-free control) for Candida albicans were as follows: T-8581, 0.218 micro...

journal_title：Antimicrobial agents and chemotherapy

authors： Yotsuji A,Shimizu K,Araki H,Fujimaki K,Nishida N,Hori R,Annen N,Yamamoto S,Hayakawa H,Imaizumi H,Watanbe Y,Narita H

更新日期：1997-01-01 00:00:00

abstract：:We tested the hypothesis that the bacterial load at the infection site could impact considerably on the pharmacokinetic/pharmacodynamic (PK/PD) parameters of fluoroquinolones. Using a rat lung infection model, we measured the influence of different marbofloxacin dosage regimens on selection of resistant bacteria after...

journal_title：Antimicrobial agents and chemotherapy

authors： Kesteman AS,Ferran AA,Perrin-Guyomard A,Laurentie M,Sanders P,Toutain PL,Bousquet-Mélou A

更新日期：2009-11-01 00:00:00

abstract：:We studied eight strains of Escherichia coli resistant to high levels of trimethoprim that were isolated over a 6-week period in a commercial breeding flock of broilers. The strains originated from fecal samples and from a carcass immediately after slaughter. Seven of eight strains belonged to the same infrequent biot...

journal_title：Antimicrobial agents and chemotherapy

authors： Chaslus-Dancla E,Gerbaud G,Lagorce M,Lafont JP,Courvalin P

更新日期：1987-05-01 00:00:00

abstract：:Streptococcus pneumoniae is a leading cause of pneumonia, meningitis, septicemia, and middle ear infections. The incidence of S. pneumoniae isolates that are not susceptible to penicillin has risen worldwide and may be above 20% in some countries. Beta-lactam antibiotic resistance in pneumococci is associated with sig...

journal_title：Antimicrobial agents and chemotherapy

authors： Jensen A,Valdórsson O,Frimodt-Møller N,Hollingshead S,Kilian M

更新日期：2015-01-01 00:00:00

abstract：:Mice infected with Plasmodium berghei served as donors of erythrocytes with a high level of parasitemia for the study of ferriprotoporphyrin IX (FP) polymerization. Six hours after treatment of these mice with 3 micromol of chloroquine per 25 g of body weight, there were significant losses of heme polymerase I (HPA I)...

journal_title：Antimicrobial agents and chemotherapy

authors： Fitch CD,Chou AC

更新日期：1997-11-01 00:00:00

abstract：:This study investigates the role of active efflux system MexXY in the emergence of aminoglycoside (AG) resistance among cystic fibrosis (CF) isolates of Pseudomonas aeruginosa. Three genotypically related susceptible and resistant (S/R) bacterial pairs and three other AG-resistant CF strains were compared to four non-...

journal_title：Antimicrobial agents and chemotherapy

authors： Vogne C,Aires JR,Bailly C,Hocquet D,Plésiat P

更新日期：2004-05-01 00:00:00

abstract：:Spontaneous binding of infected erythrocytes to uninfected erythrocytes to form rosettes is a property of some strains of Plasmodium falciparum that is linked to severe complications of malaria. Curdlan sulfate (CRDS) is a sulfated glycoconjugate compound that is chemically similar to known rosette-inhibiting drugs su...

journal_title：Antimicrobial agents and chemotherapy

authors： Kyriacou HM,Steen KE,Raza A,Arman M,Warimwe G,Bull PC,Havlik I,Rowe JA

更新日期：2007-04-01 00:00:00

abstract：:MK-0991 (L-743,872) is a potent antifungal agent featuring long half-life pharmacokinetics. The pharmacokinetics of MK-0991 administered intravenously to mice, rats, rhesus monkeys, and chimpanzees is presented. Unique to MK-0991 is its consistent cross-species performance. The range of values for the pharmacokinetic ...

journal_title：Antimicrobial agents and chemotherapy

authors： Hajdu R,Thompson R,Sundelof JG,Pelak BA,Bouffard FA,Dropinski JF,Kropp H

更新日期：1997-11-01 00:00:00

abstract：:A Klebsiella pneumoniae strain resistant to third-generation cephalosporins was isolated in the eastern Netherlands. The strain was found to carry a novel extended-spectrum beta-lactamase, namely, SHV-31. The combination of the two mutations by which SHV-31 differs from SHV-1, namely, L35Q and E240K, had previously on...

journal_title：Antimicrobial agents and chemotherapy

authors： Mazzariol A,Roelofsen E,Koncan R,Voss A,Cornaglia G

更新日期：2007-03-01 00:00:00

abstract：:Although obesity is prevalent among children in the United States, pharmacokinetic (PK) data for obese children are limited. Clindamycin is a commonly used antibiotic that may require dose adjustment in obese children due to its lipophilic properties. We performed a clindamycin population PK analysis using data from t...

journal_title：Antimicrobial agents and chemotherapy

authors： Smith MJ,Gonzalez D,Goldman JL,Yogev R,Sullivan JE,Reed MD,Anand R,Martz K,Berezny K,Benjamin DK Jr,Smith PB,Cohen-Wolkowiez M,Watt K,Best Pharmaceuticals for Children Act—Pediatric Trials Network Steering Committee.

更新日期：2017-03-24 00:00:00

abstract：:This study determined the phylogenetic groups and virulence factors of 37 Escherichia coli isolates producing types of CTX-M compared with those of 19 isolates producing different types of extended-spectrum beta-lactamases (ESBLs) in a well-defined North American population. Most CTX-M-14 producers (97%) were from phy...

journal_title：Antimicrobial agents and chemotherapy

authors： Pitout JD,Laupland KB,Church DL,Menard ML,Johnson JR

更新日期：2005-11-01 00:00:00

abstract：:Faldaprevir is a potent hepatitis C virus (HCV) NS3/4A protease inhibitor with negligible urinary excretion. We assessed the pharmacokinetics and safety of a single oral dose of faldaprevir (480 mg) in 32 HCV-negative subjects with renal impairment or normal renal function. Compared with subjects with normal renal fun...

journal_title：Antimicrobial agents and chemotherapy

authors： Huang F,Moschetti V,Lang B,Halabi A,Petersen-Sylla M,Yong CL,Elgadi M

更新日期：2015-01-01 00:00:00

abstract：:Acquiring iron (Fe) is critical to the metabolism and growth of Mycobacterium tuberculosis. Disruption of Fe metabolism is a potential approach for novel antituberculous therapy. Gallium (Ga) has many similarities to Fe. Biological systems are often unable to distinguish Ga(3+) from Fe(3+). Unlike Fe(3+), Ga(3+) canno...

journal_title：Antimicrobial agents and chemotherapy

authors： Olakanmi O,Kesavalu B,Pasula R,Abdalla MY,Schlesinger LS,Britigan BE

更新日期：2013-12-01 00:00:00

abstract：:A spontaneous Escherichia coli mutant, named Q3, resistant to nalidixic acid was obtained from a previously described clinical isolate of E. coli, Q2, resistant to fluoroquinolones but susceptible to nalidixic acid (E. Cambau, F. Bordon, E. Collatz, and L. Gutmann, Antimicrob. Agents Chemother. 37:1247-1252, 1993). Q3...

journal_title：Antimicrobial agents and chemotherapy

authors： Truong QC,Nguyen Van JC,Shlaes D,Gutmann L,Moreau NJ

更新日期：1997-01-01 00:00:00

abstract：:Increasingly frequent reports have described the in vivo loss of daptomycin susceptibility in association with clinical treatment failures. The mechanism(s) of daptomycin resistance is not well understood. We studied an isogenic set of Staphylococcus aureus isolates from the bloodstream of a daptomycin-treated patient...

journal_title：Antimicrobial agents and chemotherapy

authors： Jones T,Yeaman MR,Sakoulas G,Yang SJ,Proctor RA,Sahl HG,Schrenzel J,Xiong YQ,Bayer AS

更新日期：2008-01-01 00:00:00

abstract：:The ampD gene product regulates the expression of AmpC beta-lactamase in gram-negative bacteria and is proposed to be involved in peptidoglycan metabolism. In this study, we sequenced the ampD wild type and three mutant genes of Enterobacter cloacae and Citrobacter freundii. They exhibited a high degree of homology wi...

journal_title：Antimicrobial agents and chemotherapy

authors： Kopp U,Wiedemann B,Lindquist S,Normark S

更新日期：1993-02-01 00:00:00