Enhancement of post-ultraviolet killing in Escherichia coli K-12 through the action of gyrase inhibitors: evidence for associated gyrase-recBC deoxyribonuclease function.

abstract：:Most antibiotics are known to be incapable of killing nongrowing or slowly growing bacteria with few exceptions. Bacterial cell division is inhibited during the postantibiotic phase (PA phase) after short exposure to antibiotics. Only scarce and conflicting data are available concerning the ability of antibiotics to k...

journal_title：Antimicrobial agents and chemotherapy

authors： Odenholt I,Löwdin E,Cars O

更新日期：1997-11-01 00:00:00

abstract：:The rabbit kidney cell line LLC-RK1 was tested for its ability to discriminate the toxicities of six cephalosporin antibiotics according to their in vivo nephrotoxic potentials in rabbits. With the exception of cephalothin, which was markedly toxic to kidney cells in vitro, a good correlation between in vitro toxicity...

journal_title：Antimicrobial agents and chemotherapy

authors： Williams PD,Laska DA,Tay LK,Hottendorf GH

更新日期：1988-03-01 00:00:00

abstract：:The pharmacokinetics of intravenously administered levofloxacin and ciprofloxacin were studied in intensive care unit patients during continuous venovenous hemofiltration (CVVH; four patients received levofloxacin, and five received ciprofloxacin) or hemodiafiltration (CVVHDF; six patients received levofloxacin, and f...

journal_title：Antimicrobial agents and chemotherapy

authors： Malone RS,Fish DN,Abraham E,Teitelbaum I

更新日期：2001-10-01 00:00:00

abstract：:Monotherapy with isoniazid or amikacin or clarithromycin or combinations of two of these drugs showed nil to modest therapeutic activity in beige mice infected with Mycobacterium avium. However, the combination of all three, isoniazid-amikacin-clarithromycin, markedly reduced CFUs in both spleens and lungs after 91 da...

journal_title：Antimicrobial agents and chemotherapy

authors： Fattorini L,Xiao Y,Mattei M,Li Y,Iona E,Ricci ML,Thoresen OF,Creti R,Orefici G

更新日期：1998-03-01 00:00:00

abstract：:The long-term cumulative cytotoxicity of antiretrovirals (ARVs) is among the major causes of treatment failure in patients infected with human immunodeficiency virus (HIV) and patients with AIDS. This calls for the development of novel ARVs with less or no cytotoxicity. In the present study, we compared the cytotoxic ...

journal_title：Antimicrobial agents and chemotherapy

authors： Lopes de Campos WR,Coopusamy D,Morris L,Mayosi BM,Khati M

更新日期：2009-07-01 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：:The DNA sequences of two plasmids carrying vanA, pVEF1 (39,626 bp) and pVEF2 (39,714 bp), were determined. Forty-three shared coding sequences were identified, and the only nucleotide difference was an 88-bp indel. A postsegregational killing system was identified. This system possibly explains the persistence of the ...

journal_title：Antimicrobial agents and chemotherapy

authors： Sletvold H,Johnsen PJ,Simonsen GS,Aasnaes B,Sundsfjord A,Nielsen KM

更新日期：2007-02-01 00:00:00

abstract：:We use kinetic models to investigate how to design antimicrobial phage therapies to minimize emergence of resistant bacteria. We do this by modifying the "mutant selection window" hypothesis in a way that accounts for the ongoing self-replication of the phage. We show that components of combination phage therapies nee...

journal_title：Antimicrobial agents and chemotherapy

authors： Cairns BJ,Payne RJ

更新日期：2008-12-01 00:00:00

abstract：:Ninety-two strains of Yersinia pestis recovered over a 21-year period were evaluated for susceptibility to traditional and newer antimicrobial agents. In vitro resistance was noted only against rifampin and imipenem (approximately 20% of strains). The most active compounds (MIC at which 90% of the isolates tested are ...

journal_title：Antimicrobial agents and chemotherapy

authors： Wong JD,Barash JR,Sandfort RF,Janda JM

更新日期：2000-07-01 00:00:00

abstract：:The anilinouracils (AUs) such as 6-(3-ethyl-4-methylanilino)uracil (EMAU) are a novel class of gram-positive, selective, bactericidal antibacterials which inhibit pol IIIC, the gram-positive-specific replicative DNA polymerase. We have linked various fluoroquinolones (FQs) to the N-3 position of EMAU to generate a var...

journal_title：Antimicrobial agents and chemotherapy

authors： Butler MM,Lamarr WA,Foster KA,Barnes MH,Skow DJ,Lyden PT,Kustigian LM,Zhi C,Brown NC,Wright GE,Bowlin TL

更新日期：2007-01-01 00:00:00

abstract：:The gram-positive bacterium Staphylococcus epidermidis is the most common cause of infections associated with catheters and other indwelling medical devices. S. epidermidis produces an extracellular slime that enables it to form adherent biofilms on plastic surfaces. We found that a biofilm-releasing enzyme produced b...

journal_title：Antimicrobial agents and chemotherapy

authors： Kaplan JB,Ragunath C,Velliyagounder K,Fine DH,Ramasubbu N

更新日期：2004-07-01 00:00:00

abstract：:Using the techniques of gap misrepair mutagenesis and site-directed mutagenesis, we have generated two novel quinolone resistance mutations of the Escherichia coli DNA gyrase A protein. DNA sequencing showed these mutations to be Ser-83----Ala and Gln-106----Arg. The mutant proteins were overproduced and purified, and...

journal_title：Antimicrobial agents and chemotherapy

authors： Hallett P,Maxwell A

更新日期：1991-02-01 00:00:00

abstract：:Tuberculosis (TB) treatment is long and requires multiple drugs, likely due to various phenotypes of TB bacilli with variable drug susceptibilities. Drugs with broad activity are urgently needed. This study aimed to evaluate delamanid's activity against growing or dormant bacilli in vitro as well as in vivo Cultures o...

journal_title：Antimicrobial agents and chemotherapy

authors： Chen X,Hashizume H,Tomishige T,Nakamura I,Matsuba M,Fujiwara M,Kitamoto R,Hanaki E,Ohba Y,Matsumoto M

更新日期：2017-05-24 00:00:00

abstract：:The efficacy of atovaquone alone or combined with pyrimethamine, sulfadiazine, clarithromycin, and minocycline was examined in vitro and in a murine model of acute toxoplasmosis. In vitro studies were performed with MRC5 fibroblast tissue cultures, with quantification of Toxoplasma growth by an enzyme-linked immunosor...

journal_title：Antimicrobial agents and chemotherapy

authors： Romand S,Pudney M,Derouin F

更新日期：1993-11-01 00:00:00

abstract：:Shiga toxin (Stx)-producing Escherichia coli (STEC) causes hemorrhagic colitis and hemolytic-uremic syndrome (HUS). The rates of STEC infection and complications, including death, are highest among young children and elderly individuals. There are no causal therapies. Because Stx is the primary pathological agent lead...

journal_title：Antimicrobial agents and chemotherapy

authors： Bitzan M,Poole R,Mehran M,Sicard E,Brockus C,Thuning-Roberson C,Rivière M

更新日期：2009-07-01 00:00:00

abstract：:The effect of ethambutol (EMB) is primarily on polymerization steps in the biosynthesis of the arabinan component of cell wall arabinogalactan (AG) of Mycobacterium smegmatis. Inhibition of the synthesis of the arabinan of lipoarabinomannan (LAM) occurred later, and thus in the cases of AG and LAM, the polymerization ...

journal_title：Antimicrobial agents and chemotherapy

authors： Mikusová K,Slayden RA,Besra GS,Brennan PJ

更新日期：1995-11-01 00:00:00

abstract：:Structural analysis of two new beta-lactam antibiotics, A16884A and A16886B, indicated that they, like cephalosporin C, were composed of modified valine and cysteine residues, and alpha-aminoadipic acid. However, acid hydrolysis of A16886B and A16884A produced three times as much glycine as did hydrolysis of cephalosp...

journal_title：Antimicrobial agents and chemotherapy

authors： Brannon DR,Mabe JA,Ellis R,Whitney JG,Nagarajan R

更新日期：1972-03-01 00:00:00

abstract：:Genes belonging to different erm DNA hybridization classes were selectively amplified by polymerase chain reaction with a pair of oligonucleotides that corresponded to conserved amino acid motifs in known ERM methylases. Identification of the resistance mechanism was possible despite substantial nucleotide sequence di...

journal_title：Antimicrobial agents and chemotherapy

authors： Arthur M,Molinas C,Mabilat C,Courvalin P

更新日期：1990-10-01 00:00:00

abstract：:No effective approved drug therapy exists for Cryptosporidium infection of immunocompromised patients. Here we investigated the nonabsorbed anthelmintic drug pyrvinium pamoate for inhibition of the growth of the intestinal protozoan parasite Cryptosporidium parvum. The concentration of pyrvinium that effected 50% grow...

journal_title：Antimicrobial agents and chemotherapy

authors： Downey AS,Chong CR,Graczyk TK,Sullivan DJ

更新日期：2008-09-01 00:00:00

abstract：:The ultrastructural alterations induced in vitro by ICI 195,739, a recently developed bis-triazole derivative with potent antiproliferative effects on Trypanosoma (Schizotrypanum) cruzi, are reported. On epimastigotes, the triazole at its minimum growth-inhibitory concentration (0.1 microM) produced immediately (withi...

journal_title：Antimicrobial agents and chemotherapy

authors： Lazardi K,Urbina JA,de Souza W

更新日期：1991-04-01 00:00:00

abstract：:Serial passage of Pseudomonas aeruginosa ATCC 27853 or Escherichia coli ATCC 25922 on agar with subinhibitory concentrations of norfloxacin rapidly produced isolates with minimal inhibitory concentrations (MICs) of norfloxacin up to 512-fold higher than that for the original strain. Although MICs of seven unrelated an...

journal_title：Antimicrobial agents and chemotherapy

authors： Tenney JH,Maack RW,Chippendale GR

更新日期：1983-01-01 00:00:00

abstract：:The rpoB gene encodes the beta subunit of the DNA-dependent RNA polymerase of bacteria. Mutations in defined areas result in resistance to rifampin. Mycobacterium smegmatis is naturally resistant to rifampin, but analysis of the rpoB gene revealed no identifiable rifampin resistance mutations. Another mechanism of res...

journal_title：Antimicrobial agents and chemotherapy

authors： Hetherington SV,Watson AS,Patrick CC

更新日期：1995-09-01 00:00:00

abstract：:Emergence of resistance to pentavalent antimonials has become a severe obstacle in the treatment of visceral leishmaniasis (VL) on the Indian subcontinent. The mechanisms operating in laboratory-generated strains are somewhat known, but the determinants of clinical antimony resistance are not well understood. By utili...

journal_title：Antimicrobial agents and chemotherapy

authors： Ashutosh,Garg M,Sundar S,Duncan R,Nakhasi HL,Goyal N

更新日期：2012-01-01 00:00:00

abstract：:A model of orogastric candidosis in SCID mice, which mimics disease seen in AIDS patients, was used to evaluate ravuconazole in comparison with fluconazole for treatment. Mice were infected orally with Candida albicans and received either no treatment or oral treatment once daily for 12 days with 1, 5, or 25 mg of rav...

journal_title：Antimicrobial agents and chemotherapy

authors： Clemons KV,Stevens DA

更新日期：2001-12-01 00:00:00

abstract：:The optimal approach for empirical antibiotic therapy in patients with severe sepsis and septic shock remains controversial. A retrospective cohort study was conducted in the intensive care units of a university hospital. The data from 760 patients with severe sepsis or septic shock associated with Gram-negative bacte...

journal_title：Antimicrobial agents and chemotherapy

authors： Micek ST,Welch EC,Khan J,Pervez M,Doherty JA,Reichley RM,Kollef MH

更新日期：2010-05-01 00:00:00

abstract：:The antifungal pentapeptide auristatin PHE was recently shown to interfere with microtubule dynamics and nuclear and cellular division in the opportunistic pathogen Cryptococcus neoformans. To gain a broader understanding of the cellular response of C. neoformans to auristatin PHE, mRNA differential display (DD) and r...

journal_title：Antimicrobial agents and chemotherapy

authors： Woyke T,Berens ME,Hoelzinger DB,Pettit GR,Winkelmann G,Pettit RK

更新日期：2004-02-01 00:00:00

abstract：:We compared the activity of delavirdine (DLV) plus zidovudine (AZT) (n = 300) with that of AZT (n = 297) against human immunodeficiency virus type 1 in a randomized, double-blind, placebo-controlled trial. DLV exerted a transient antiviral effect, and mutations for resistance to DLV were found in more than 90% of subj...

journal_title：Antimicrobial agents and chemotherapy

authors： Joly V,Moroni M,Concia E,Lazzarin A,Hirschel B,Jost J,Chiodo F,Bentwich Z,Love WC,Hawkins DA,Wilkins EG,Gatell AJ,Vetter N,Greenwald C,Freimuth WW,de Cian W

更新日期：2000-11-01 00:00:00

abstract：:The in vitro susceptibilities of 98 isolates of JK diphtheroids to teichomycin, vancomycin, and eight other antibiotics was investigated. Teichomycin and vancomycin were extremely active against all the isolates tested. The 90% minimal inhibitory concentrations for teichomycin and vancomycin were 1.56 and 0.78 microgr...

journal_title：Antimicrobial agents and chemotherapy

authors： Jadeja L,Fainstein V,LeBlanc B,Bodey GP

更新日期：1983-08-01 00:00:00

abstract：:The ST5 lineage of methicillin-resistant Staphylococcus aureus (MRSA) is one of the most globally disseminated hospital-associated MRSA (HA-MRSA) lineages. We isolated a new local variant (designated ST764) over at least 5 years that causes invasive infections, including necrotizing fasciitis, and is carried by medica...

journal_title：Antimicrobial agents and chemotherapy

authors： Takano T,Hung WC,Shibuya M,Higuchi W,Iwao Y,Nishiyama A,Reva I,Khokhlova OE,Yabe S,Ozaki K,Takano M,Yamamoto T

更新日期：2013-04-01 00:00:00

abstract：:DNA ligases are indispensable enzymes playing a critical role in DNA replication, recombination, and repair in all living organisms. Bacterial NAD+-dependent DNA ligase (LigA) was evaluated for its potential as a broad-spectrum antibacterial target. A novel class of substituted adenosine analogs was discovered by targ...

journal_title：Antimicrobial agents and chemotherapy

authors： Mills SD,Eakin AE,Buurman ET,Newman JV,Gao N,Huynh H,Johnson KD,Lahiri S,Shapiro AB,Walkup GK,Yang W,Stokes SS

更新日期：2011-03-01 00:00:00