Nucleotide sequence of the gyrA gene and characterization of ciprofloxacin-resistant mutants of Helicobacter pylori.

abstract：:Various fluoroquinolones (norfloxacin, enoxacin, ofloxacin, levofloxacin, and sparfloxacin) induce DnaK and GroEL heat shock proteins in Escherichia coli. The induction is transient, consistent with the kinetics of cellular DNA relaxation. The concentrations of fluoroquinolones required for induction are similar to th...

journal_title：Antimicrobial agents and chemotherapy

authors： Mizushima T,Matsuo M,Sekimizu K

更新日期：1997-01-01 00:00:00

abstract：:Cyclic tetrapyrroles are among the most potent compounds with activity against transmissible spongiform encephalopathies (TSEs; or prion diseases). Here the effects of differential sulfonation and metal binding to cyclic tetrapyrroles were investigated. Their potencies in inhibiting disease-associated protease-resista...

journal_title：Antimicrobial agents and chemotherapy

authors： Caughey WS,Priola SA,Kocisko DA,Raymond LD,Ward A,Caughey B

更新日期：2007-11-01 00:00:00

abstract：:In vitro susceptibility of 185 penicillin-susceptible and -resistant pneumococci to WY-49605, a new oral penem, was compared with susceptibility to penicillin G, amoxicillin with and without clavulanate, cefixime, cefaclor, cefpodoxime, cefuroxime, and cefdinir. WY-49605 yielded MICs for 50 and 90% of the strains test...

journal_title：Antimicrobial agents and chemotherapy

authors： Spangler SK,Jacobs MR,Appelbaum PC

更新日期：1994-12-01 00:00:00

abstract：:A total of 20 serious infections were treated with piperacillin. These infections included bacteremias (5), pneumonias (5), urinary tract infections (5), soft tissue infections (3), septic arthritis (1), and osteomyelitis (1). The most common bacterial pathogen was Pseudomonas aeruginosa, accounting for eight infectio...

journal_title：Antimicrobial agents and chemotherapy

authors： Simon GL,Snydman DR,Tally FP,Gorbach SL

更新日期：1980-07-01 00:00:00

abstract：:GES-1 is a class A extended-spectrum β-lactamase conferring resistance to penicillins, narrow- and expanded-spectrum cephalosporins, and ceftazidime. However, GES-1 poorly hydrolyzes aztreonam and cephamycins and exhibits very low k(cat) values for carbapenems. Twenty-two GES variants have been discovered thus far, di...

journal_title：Antimicrobial agents and chemotherapy

authors： Delbrück H,Bogaerts P,Kupper MB,Rezende de Castro R,Bennink S,Glupczynski Y,Galleni M,Hoffmann KM,Bebrone C

更新日期：2012-11-01 00:00:00

abstract：:While the inflammatory response to severe pneumonia is paramount in limiting and resolving the infection, excessive inflammation can lead to deleterious effects. We theorized that patients with severe community-acquired pneumonia (CAP) who were treated with macrolides and aspirin would receive benefit beyond that of c...

journal_title：Antimicrobial agents and chemotherapy

authors： Falcone M,Russo A,Shindo Y,Farcomeni A,Pieralli F,Cangemi R,Liu J,Xia J,Okumura J,Sano M,Jones C,Vannucchi V,Mancone M,Micek S,Xu F,Violi F,Kollef M

更新日期：2019-01-29 00:00:00

abstract：:9-R-[2-(Phosphonomethoxy)propyl]-adenine (tenofovir) is an acyclic nucleoside phosphonate with antiviral activity against human immunodeficiency virus type 1 (HIV-1) and hepatitis B virus (HBV). Tenofovir is not orally bioavailable but becomes orally active against HIV-1 infection as the disoproxil ester (tenofovir di...

journal_title：Antimicrobial agents and chemotherapy

authors： Painter GR,Almond MR,Trost LC,Lampert BM,Neyts J,De Clercq E,Korba BE,Aldern KA,Beadle JR,Hostetler KY

更新日期：2007-10-01 00:00:00

abstract：:In response to the need for rapid, inexpensive, high-throughput assays for antimycobacterial drug screening, a microplate-based assay which uses Alamar blue reagent for determination of growth was evaluated. MICs of 30 antimicrobial agents against Mycobacterium tuberculosis H37Rv, M. tuberculosis H37Ra, and Mycobacter...

journal_title：Antimicrobial agents and chemotherapy

authors： Collins L,Franzblau SG

更新日期：1997-05-01 00:00:00

abstract：:Bacterial adaptation to external stresses and toxic compounds is a key step in the emergence of multidrug-resistant strains that are a serious threat to human health. Although some of the proteins and regulators involved in antibiotic resistance mechanisms have been described, no information is available to date conce...

journal_title：Antimicrobial agents and chemotherapy

authors： Dupont M,James CE,Chevalier J,Pagès JM

更新日期：2007-09-01 00:00:00

abstract：:Protoplasts of the temperature-sensitive osmotic-1 mutant of Neurospora crassa grew and divided as cell wall-less cells when incubated under certain conditions at 37 degrees C. Each protoplast regenerated cell wall and formed a mycelium when the temperature was shifted to 22 degrees C. Cell wall regeneration, but not ...

journal_title：Antimicrobial agents and chemotherapy

authors： Selitrennikoff CP

更新日期：1983-05-01 00:00:00

abstract：:As opposed to Enterococcus faecalis, which is intrinsically resistant to lincosamides, streptogramins A, and pleuromutilins (LSAP phenotype) by production of the ABC protein Lsa(A), Enterococcus faecium is naturally susceptible. Since this phenotype may be selected for in vivo by quinupristin-dalfopristin (Q-D), the a...

journal_title：Antimicrobial agents and chemotherapy

authors： Isnard C,Malbruny B,Leclercq R,Cattoir V

更新日期：2013-09-01 00:00:00

abstract：:Resistance to rifampin in Mycobacterium tuberculosis results from mutations in the gene coding for the beta subunit of RNA polymerase (rpoB). At least 95% of rifampin-resistant isolates have mutations in rpoB, and the mutations are clustered in a small region. About 40 distinct point mutations and in-frame insertions ...

journal_title：Antimicrobial agents and chemotherapy

authors： Morlock GP,Plikaytis BB,Crawford JT

更新日期：2000-12-01 00:00:00

abstract：:This paper reports an evaluation of a melamino nitroheterocycle, a potential lead for further development as an agent against human African trypanosomiasis (HAT). Studies on its efficacy, physicochemical and biopharmaceutical properties, and potential for toxicity are described. The compound previously had been shown ...

journal_title：Antimicrobial agents and chemotherapy

authors： Giordani F,Buschini A,Baliani A,Kaiser M,Brun R,Barrett MP,Pellacani C,Poli P,Gilbert IH

更新日期：2014-10-01 00:00:00

abstract：:Ex vivo assay systems provide a powerful approach to studying human malaria parasite biology and to testing antimalarials. For rodent malaria parasites, short-term in vitro culture and ex vivo antimalarial susceptibility assays are relatively cumbersome, relying on in vivo passage for synchronization, since ring-stage...

journal_title：Antimicrobial agents and chemotherapy

authors： Chang ZW,Malleret B,Russell B,Rénia L,Claser C

更新日期：2016-10-21 00:00:00

abstract：:Clostridioides difficile causes severe antibiotic-associated diarrhea and colitis. C. difficile is an anaerobic, Gram-positive sporeformer that is highly resistant to β-lactams, the most commonly prescribed antibiotics. The resistance of C. difficile to β-lactam antibiotics allows the pathogen to replicate and cause d...

journal_title：Antimicrobial agents and chemotherapy

authors： Sandhu BK,Edwards AN,Anderson SE,Woods EC,McBride SM

更新日期：2019-12-20 00:00:00

abstract：:Ten (0.05%) of 18,628 strains of Streptococcus pyogenes isolated from clinical specimens in the 3 years 1968 to 1970 were resistant to lincomycin and erythromycin. All 10 strains were highly resistant to lincomycin, having minimal inhibitory concentration (MIC) values of 200 mug/ml. There were two degrees of resistanc...

journal_title：Antimicrobial agents and chemotherapy

authors： Dixon JM,Lipinski AE

更新日期：1972-04-01 00:00:00

abstract：:The inhibitory and bactericidal activities of fortimicin A (FTM-A) alone against Pseudomonas aeruginosa were compared with those of FTM-A in combination with beta-lactam antibiotics. As tested by the checkerboard method, most beta-lactam antibiotics tested had synergistic effects on the inhibitory activity of FTM-A ag...

journal_title：Antimicrobial agents and chemotherapy

authors： Yamashita K,Kawabe H,Mitsuhashi S

更新日期：1981-07-01 00:00:00

abstract：:Of the 176 randomly selected, commensal, gram-negative bacteria isolated from healthy children with low exposure to antibiotics, 138 (78%) carried one or more of the seven macrolide resistance genes tested in this study. These isolates included 79 (91%) isolates from the oral cavity and 59 (66%) isolates from urine sa...

journal_title：Antimicrobial agents and chemotherapy

authors： Ojo KK,Ulep C,Van Kirk N,Luis H,Bernardo M,Leitao J,Roberts MC

更新日期：2004-09-01 00:00:00

abstract：:Streptococcus pneumoniae, a major cause of human disease, produces a 17-mer autoinducer peptide pheromone (competence-stimulating peptide [CSP]) for the control of competence for genetic transformation. Due to previous work linking CSP to stress phenotypes, we set up an in vivo sepsis model to assay its effect on viru...

journal_title：Antimicrobial agents and chemotherapy

authors： Oggioni MR,Iannelli F,Ricci S,Chiavolini D,Parigi R,Trappetti C,Claverys JP,Pozzi G

更新日期：2004-12-01 00:00:00

abstract：:We have previously identified a target site in HIV-1 RNA that was particularly accessible to a ribozyme and a short hairpin RNA (shRNA). To design small interfering RNAs (siRNAs) targeting this site, we evaluated the effects of siRNAs with different lengths on HIV-1 production. The potency and efficacy of these siRNAs...

journal_title：Antimicrobial agents and chemotherapy

authors： Scarborough RJ,Adams KL,Daher A,Gatignol A

更新日期：2015-09-01 00:00:00

abstract：:The current recommendations for intravenous (i.v.) acyclovir dosing in obese patients suggest using ideal body weight (IBW) rather than total body weight (TBW). To our knowledge, no pharmacokinetic analysis has validated this recommendation. This single-dose pharmacokinetic study was conducted in an inpatient oncology...

journal_title：Antimicrobial agents and chemotherapy

authors： Turner RB,Cumpston A,Sweet M,Briggs F,Slain D,Wen S,Craig M,Hamadani M,Petros W

更新日期：2016-01-11 00:00:00

abstract：:We previously reported the development of a prototype antibiotic sensitivity assay to detect drug-resistant Mycobacterium tuberculosis using infection by mycobacteriophage to create a novel nucleic acid transcript, a surrogate marker of mycobacterial viability, detected by reverse transcriptase PCR (M. C. Mulvey et al...

journal_title：Antimicrobial agents and chemotherapy

authors： Mulvey MC,Lemmon M,Rotter S,Lees J,Einck L,Nacy CA

更新日期：2015-01-01 00:00:00

abstract：:Malaria is the third most significant cause of infectious disease in the world. The search for new antimalarial chemotherapy has become increasingly urgent due to parasite resistance to classical drugs. Trioxaquines are synthetic hybrid molecules containing a trioxane motif (which is responsible for the antimalarial a...

journal_title：Antimicrobial agents and chemotherapy

authors： Benoit-Vical F,Lelièvre J,Berry A,Deymier C,Dechy-Cabaret O,Cazelles J,Loup C,Robert A,Magnaval JF,Meunier B

更新日期：2007-04-01 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：:Candida auris is an emerging pathogen that can cause virulent central-line-associated bloodstream infections. Catheter salvage through the eradication of biofilms is a desirable therapeutic option. We compared taurolidine and minocycline-EDTA-ethanol (MEE) catheter lock solutions in vitro for the eradication of biofil...

journal_title：Antimicrobial agents and chemotherapy

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

更新日期：2020-03-24 00:00:00

abstract：:The mechanism(s) of daptomycin (DAP) resistance (DAPr) is incompletely defined. Thickened cell walls (CWs) acting as either a mechanical barrier or an affinity trap for DAP have been purported to be a major contributor to the DAPr phenotype. To this end, we studied an isogenic set of methicillin-resistant Staphylococc...

journal_title：Antimicrobial agents and chemotherapy

authors： Yang SJ,Nast CC,Mishra NN,Yeaman MR,Fey PD,Bayer AS

更新日期：2010-08-01 00:00:00

abstract：:The mechanism of action of the fungicidal peptide auristatin PHE was investigated in Cryptococcus neoformans. Since auristatin PHE causes budding arrest in C. neoformans (T. Woyke, G. R. Pettit, G. Winkelmann, and R. K. Pettit, Antimicrob. Agents Chemother. 45:3580-3584, 2001), microtubule integrity and nuclear locali...

journal_title：Antimicrobial agents and chemotherapy

authors： Woyke T,Roberson RW,Pettit GR,Winkelmann G,Pettit RK

更新日期：2002-12-01 00:00:00

abstract：:In this study, we investigated the in vitro activity of SCH-56592 (SCH), a new triazole antifungal agent. We compared the activity of SCH with those of itraconazole (ITZ) and amphotericin B (AB) against 60 clinical isolates of Aspergillus spp. by using a microtiter format. Incubation was done at 37 degrees C for 48 h,...

journal_title：Antimicrobial agents and chemotherapy

authors： Oakley KL,Moore CB,Denning DW

更新日期：1997-05-01 00:00:00

abstract：:An experiment was conducted in animal facilities to compare the impacts of four avian colibacillosis treatments-oxytetracycline (OTC), trimethoprim-sulfadimethoxine (SXT), amoxicillin (AMX), or enrofloxacin (ENR)-on the susceptibility of Escherichia coli in broiler intestinal tracts. Birds were first orally inoculated...

journal_title：Antimicrobial agents and chemotherapy

authors： Dheilly A,Le Devendec L,Mourand G,Bouder A,Jouy E,Kempf I

更新日期：2012-01-01 00:00:00

abstract：:Malaria control is hindered by the evolution and spread of resistance to antimalarials, necessitating multiple changes to drug policies over time. A comprehensive antimalarial drug resistance surveillance program is vital for detecting the potential emergence of resistance to antimalarials, including current artemisin...

journal_title：Antimicrobial agents and chemotherapy

authors： Lucchi NW,Komino F,Okoth SA,Goldman I,Onyona P,Wiegand RE,Juma E,Shi YP,Barnwell JW,Udhayakumar V,Kariuki S

更新日期：2015-12-01 00:00:00