Biosynthetic studies on antibiotic A47934.

abstract：:The susceptibilities of Streptococcus pneumoniae (1,476 strains) and untypeable Haemophilus influenzae (1,676 strains) to various oral beta-lactam, macrolide-azalide, and fluoroquinolone antimicrobial agents were determined by broth microdilution. Organisms were isolated from specimens obtained from outpatients in six...

journal_title：Antimicrobial agents and chemotherapy

authors： Jacobs MR,Bajaksouzian S,Zilles A,Lin G,Pankuch GA,Appelbaum PC

更新日期：1999-08-01 00:00:00

abstract：:This study determined the pharmacokinetic disposition of cefonicid. A single dose of 7.5 mg/kg of body weight was administered to five healthy volunteers as a 5-min intravenous infusion. Multiple plasma and urine samples were collected for 48 h. Peak plasma concentrations ranged from 95 to 156 micrograms/ml and fell s...

journal_title：Antimicrobial agents and chemotherapy

authors： Barriere SL,Hatheway GJ,Gambertoglio JG,Lin ET,Conte JE Jr

更新日期：1982-06-01 00:00:00

abstract：:We characterized the stability of a plasmid pCP53-mcr1_3 encoding mcr-1 and mcr-3.19 with and without colistin exposure during cultural passages via S1-pulsed-field gel electrophoresis (PFGE) and nanopore MinION sequencing. Both mcr-1 and mcr-3.19 were missing in certain subclones, mediated by genetic excision (ISApl1...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhang P,Bai L,Li Y,Wang Z,Li R

更新日期：2019-08-23 00:00:00

abstract：:The activities of DU-6859a, levofloxacin, ofloxacin, sparfloxacin, and ciprofloxacin against bite wound isolates were determined by the agar dilution method. DU-6859a was the most active compound (MICs, < or = 0.125 microg/ml) against all Pasteurella species, Staphylococcus aureus, and streptococci; anaerobes were sus...

journal_title：Antimicrobial agents and chemotherapy

authors： Goldstein EJ,Citron DM,Hunt Gerardo S,Hudspeth M,Merriam CV

更新日期：1997-05-01 00:00:00

abstract：:This article reports anti-Toxoplasma gondii activity of 3-(thiophen-2-yl)-1,2,4-triazole-5-thione. The compound displayed significant and reproducible antiparasitic effects at nontoxic concentrations for the host cells, with an experimentally determined 50% inhibitory concentration (IC50) at least 30 times better than...

journal_title：Antimicrobial agents and chemotherapy

authors： Dzitko K,Paneth A,Plech T,Pawełczyk J,Węglińska L,Paneth P

更新日期：2014-12-01 00:00:00

abstract：:The activities of daptomycin, a cyclic lipopeptide, and eight other agents were determined against 338 strains of gram-positive anaerobic bacteria and corynebacteria by the NCCLS reference agar dilution method with supplemented brucella agar for the anaerobes and Mueller-Hinton agar for the corynebacteria. The daptomy...

journal_title：Antimicrobial agents and chemotherapy

authors： Goldstein EJ,Citron DM,Merriam CV,Warren YA,Tyrrell KL,Fernandez HT

更新日期：2003-01-01 00:00:00

abstract：:Escherichia coli sequence type 131 (ST131) is a pandemic clonal lineage that is responsible for the global increase in fluoroquinolone resistance and extended-spectrum-β-lactamase (ESBL) producers. The members of ST131 clade C, especially subclades C2 and C1-M27, are associated with ESBLs. We developed a multiplex con...

journal_title：Antimicrobial agents and chemotherapy

authors： Matsumura Y,Pitout JDD,Peirano G,DeVinney R,Noguchi T,Yamamoto M,Gomi R,Matsuda T,Nakano S,Nagao M,Tanaka M,Ichiyama S

更新日期：2017-07-25 00:00:00

abstract：:The ribosome-targeting antimicrobial, spectinomycin (SPC), strongly induced the mexXY genes of the MexXY-OprM multidrug efflux system in Pseudomonas aeruginosa and increased susceptibility to the polycationic antimicrobials polymyxin B and polymyxin E, concomitant with a decrease in expression of the polymyxin resista...

journal_title：Antimicrobial agents and chemotherapy

authors： Poole K,Lau CH,Gilmour C,Hao Y,Lam JS

更新日期：2015-12-01 00:00:00

abstract：:Using a new rabbit model of methicillin-susceptible Staphylococcus aureus knee prosthesis infection, we compared the efficacies of sparfloxacin (50 mg/kg of body weight subcutaneously, twice a day) and pefloxacin (50 mg/kg subcutaneously, twice a day). A partial knee replacement was performed with a silicone implant f...

journal_title：Antimicrobial agents and chemotherapy

authors： Crémieux AC,Mghir AS,Bleton R,Manteau M,Belmatoug N,Massias L,Garry L,Sales N,Mazière B,Carbon C

更新日期：1996-09-01 00:00:00

abstract：:The prophylactic efficacy of 17C91, a carbamate prodrug of atovaquone (ATQ), was investigated in a severe combined immunodeficient mouse model of Pneumocystis carinii pneumonia (PCP). At an oral dosage equivalent to 100 mg of ATQ per kg of body weight per day, 17C91 protected 9 of 10 mice from PCP and had a prophylact...

journal_title：Antimicrobial agents and chemotherapy

authors： Comley JC,Yeates CL,Frend TJ

更新日期：1995-10-01 00:00:00

abstract：:This study summarizes the linezolid susceptibility testing results for 7,429 Gram-positive pathogens from 60 U.S. sites collected during the 2012 sampling year for the LEADER Program. Linezolid showed potent activity when tested against 2,980 Staphylococcus aureus isolates, inhibiting all but 3 at ≤2 μg/ml. Similarly,...

journal_title：Antimicrobial agents and chemotherapy

authors： Mendes RE,Flamm RK,Hogan PA,Ross JE,Jones RN

更新日期：2014-01-01 00:00:00

abstract：:The potential of bacteriophage therapy to treat infections caused by antibiotic-resistant bacteria has now been well established using various animal models. While numerous newly isolated bacteriophages have been claimed to be potential therapeutic candidates on the basis of in vitro observations, the parameters used ...

journal_title：Antimicrobial agents and chemotherapy

authors： Henry M,Lavigne R,Debarbieux L

更新日期：2013-12-01 00:00:00

abstract：:Antiviral therapeutics are currently unavailable for treatment of coxsackievirus B3, which can cause life-threatening myocarditis. A modified small interfering RNA (siRNA) containing 5'-triphosphate, 3p-siRNA, was shown to induce RNA interference and interferon activation. We aimed to develop a potent antiviral treatm...

journal_title：Antimicrobial agents and chemotherapy

authors： Ahn J,Ko A,Jun EJ,Won M,Kim YK,Ju ES,Jeon ES,Lee H

更新日期：2012-07-01 00:00:00

abstract：:An axenic amastigote culture system was utilized to directly assess the stage-specific antileishmanial effects of antimony on amastigotes of Leishmania donovani devoid of the macrophage host cell. Pentostam, which contains antimony in the form of sodium stibogluconate and the preservative chlorocresol, was used. Cell ...

journal_title：Antimicrobial agents and chemotherapy

authors： Ephros M,Waldman E,Zilberstein D

更新日期：1997-05-01 00:00:00

abstract：:A new natural TEM derivative, named TEM-87, was identified in a Proteus mirabilis isolate from an Italian hospital. Compared to TEM-1, TEM-87 contains the following mutations: E104K, R164C, and M182T. Kinetic analysis of TEM-87 revealed extended-spectrum activity against oxyimino cephalosporins (preferentially ceftazi...

journal_title：Antimicrobial agents and chemotherapy

authors： Perilli M,Segatore B,De Massis MR,Franceschini N,Bianchi C,Rossolini GM,Amicosante G

更新日期：2002-03-01 00:00:00

abstract：:Visceral leishmaniasis is a neglected tropical disease that causes significant morbidity and mortality worldwide. Characterization of the pharmacokinetics and pharmacodynamics of antileishmanial drugs in preclinical models is important for drug development and use. Here we investigated the pharmacodynamics and drug di...

journal_title：Antimicrobial agents and chemotherapy

authors： Voak AA,Harris A,Qaiser Z,Croft SL,Seifert K

更新日期：2017-08-24 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：:Mutants with multiple low-level antibiotic resistance were isolated from virulent wild-type Aeromonas salmonicida strains exposed to a low concentration of any one of several low-molecular-mass (approximately 635 daltons or less) antibiotics. Multiple resistance was toward beta-lactam compounds (penicillin G, ampicill...

journal_title：Antimicrobial agents and chemotherapy

authors： Wood SC,McCashion RN,Lynch WH

更新日期：1986-06-01 00:00:00

abstract：:Cefiderocol is a siderophore cephalosporin active against many multidrug-resistant (MDR) Gram-negative pathogens. We examined the resistance mechanisms in 12 Acinetobacter baumannii strains with cefiderocol MICs ranging from ≤0.03 to >32 μg/ml. Cefiderocol resistance could not be explained by β-lactamase activity. Cef...

journal_title：Antimicrobial agents and chemotherapy

authors： Malik S,Kaminski M,Landman D,Quale J

更新日期：2020-10-20 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 global control of tuberculosis (TB) is at risk by the spread of multidrug-resistant TB (MDR TB). Treatment of MDR TB is lengthy and involves injected drugs, such as capreomycin, that have severe side effects. It was previously reported that a single daily dose of inhaled capreomycin had a positive effect on the ba...

journal_title：Antimicrobial agents and chemotherapy

authors： Garcia-Contreras L,Muttil P,Fallon JK,Kabadi M,Gerety R,Hickey AJ

更新日期：2012-05-01 00:00:00

abstract：:The activity of MK-0826, a new carbapenem, against 309 Bacteroides fragilis group strains was investigated and compared with that of 11 other beta-lactam and 5 non-beta-lactam agents. MK-0826 showed excellent activity (MICs ranged from < or =0.06 to 4 microg/ml). The new carbapenem may be useful in the treatment of mi...

journal_title：Antimicrobial agents and chemotherapy

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

更新日期：2001-08-01 00:00:00

abstract：:Single-dose nevirapine (sd-NVP) and extended NVP prophylaxis are widely used in resource-constrained settings to prevent vertical HIV-1 transmission. We assessed the pharmacokinetics of sd-NVP in 62 HIV-1-positive pregnant Ugandan woman and their newborns who were receiving sd-NVP prophylaxis to prevent mother-to-chil...

journal_title：Antimicrobial agents and chemotherapy

authors： Frank M,von Kleist M,Kunz A,Harms G,Schütte C,Kloft C

更新日期：2011-12-01 00:00:00

abstract：:AG205 was identified from high-throughput screening as a potent inhibitor of FabK, the enoyl-ACP reductase in Streptococcus pneumoniae. Specific inhibition of lipid biosynthesis in a macromolecular biosynthesis assay and identification of an Ala141Ser substitution in FabK from spontaneous AG205-resistant mutants indic...

journal_title：Antimicrobial agents and chemotherapy

authors： Takahata S,Iida M,Osaki Y,Saito J,Kitagawa H,Ozawa T,Yoshida T,Hoshiko S

更新日期：2006-08-01 00:00:00

abstract：:We compared the efficacy of combination posaconazole-liposomal amphotericin B (LAmB) therapy to monotherapy with either drug in diabetic ketoacidotic or neutropenic mice with disseminated zygomycosis caused by Rhizopus oryzae. Combination therapy was no better than LAmB alone, and posaconazole monotherapy did not impr...

journal_title：Antimicrobial agents and chemotherapy

authors： Ibrahim AS,Gebremariam T,Schwartz JA,Edwards JE Jr,Spellberg B

更新日期：2009-02-01 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：:Seventeen oral streptococci and 18 enterococci were tested for the presence of DNA sequences homologous to the conjugative transposon Tn916 encoding tetracycline resistance. All the strains were resistant to tetracyclines, including minocycline, and most of them were resistant to other antibiotics. Tn916-like structur...

journal_title：Antimicrobial agents and chemotherapy

authors： Bentorcha F,Clermont D,de Cespédès G,Horaud T

更新日期：1992-01-01 00:00:00

abstract：:A number of proflavine (PF)-resistant mutants of Escherichia coli B were also resistant to penicillin and cephalothin. Mutants resistant to 1.0 mM PF were 10 times more penicillin resistant than were the PF-susceptible, wild-type cells. Single-step mutants selected for resistance to either PF or penicillin were also r...

journal_title：Antimicrobial agents and chemotherapy

authors： McKellar RC,McKenzie CN,Kushner KJ

更新日期：1976-10-01 00:00:00

abstract：:Rifapentine is highly protein bound in blood, but the free, unbound drug is the microbiologically active fraction. In this exploratory study, we characterized the free plasma fraction of rifapentine in 41 patients with tuberculosis. We found a lower total rifapentine concentration but significantly higher free rifapen...

journal_title：Antimicrobial agents and chemotherapy

authors： Egelund EF,Weiner M,Singh RP,Prihoda TJ,Gelfond JA,Derendorf H,Mac Kenzie WR,Peloquin CA

更新日期：2014-08-01 00:00:00

abstract：:We performed the characterization of a multidrug-resistant (MDR) Enterobacter spp. isolate highlighting the genetic aspects of the antimicrobial resistance genes. An Enterobacter spp. isolate (Ec61) was recovered in 2014 from a transtracheal aspirate sample from a patient admitted to a Brazilian tertiary hospital and ...

journal_title：Antimicrobial agents and chemotherapy

authors： Martins WMBS,Martins ER,de Andrade LK,Farzana R,Walsh TR,Toleman MA,Nogueira MCL,Gales AC

更新日期：2020-12-14 00:00:00