Mutational loss of sensitivity to mutacin GS-5 in Streptococcus pyogenes: characterization of a mutant deficient in receptor protein.

abstract：:Enterococcus faecium clinical isolates A902 and BM4538, which were resistant to relatively high levels of vancomycin (128 and 64 microg/ml, respectively) and to low levels of teicoplanin (4 microg/ml), and Enterococcus faecalis clinical isolates BM4539 and BM4540, which were resistant to moderate levels of vancomycin ...

journal_title：Antimicrobial agents and chemotherapy

authors： Depardieu F,Kolbert M,Pruul H,Bell J,Courvalin P

更新日期：2004-10-01 00:00:00

abstract：:Salmonella typhimurium isolated in Bombay from fecal samples of 145 patients suffering from gastroenteritis (group 1) and from the cerebrospinal fluid, feces, or blood of 42 patients with systemic salmonellosis (group 2) were examined for the antimicrobial resistance and incompatibility groups of their R plasmids. Mul...

journal_title：Antimicrobial agents and chemotherapy

authors： Rangnekar VM,Banker DD,Jhala HI

更新日期：1983-01-01 00:00:00

abstract：:When strains harboring R factor and showing ampicillin (APC) resistance were inoculated on plates containing various concentrations of APC, mutants carrying various levels of APC resistance occurred at high frequencies. Increases in the level of APC resistance were due to a quantitative increase in the formation of pe...

journal_title：Antimicrobial agents and chemotherapy

authors： Odakura Y,Tanaka T,Hashimoto H,Mitsuhashi S

更新日期：1973-03-01 00:00:00

abstract：:We examined an E-test-based strategy for testing the combination of itraconazole and amphotericin B, the latter given either sequentially or concomitantly, in isolates of Aspergillus fumigatus. An antagonistic interaction between the two drugs was noted, especially with the sequential administration of amphotericin B....

journal_title：Antimicrobial agents and chemotherapy

authors： Kontoyiannis DP,Lewis RE,Sagar N,May G,Prince RA,Rolston KV

更新日期：2000-10-01 00:00:00

abstract：:UK-18892 is a new aminoglycoside antibiotic, a derivative of kanamycin A structurally related to amikacin. It was found to be active against a wide range of pathogenic bacteria, including many gentamicin-resistant strains. The spectrum and degree of activity of UK-18892 were similar to those of amikacin, and differenc...

journal_title：Antimicrobial agents and chemotherapy

authors： Wise R,Andrews JM

更新日期：1978-08-01 00:00:00

abstract：:Eravacycline (TP-434 or 7-fluoro-9-pyrrolidinoacetamido-6-demethyl-6-deoxytetracycline) is a novel fluorocycline that was evaluated for antimicrobial activity against panels of recently isolated aerobic and anaerobic Gram-negative and Gram-positive bacteria. Eravacycline showed potent broad-spectrum activity against 9...

journal_title：Antimicrobial agents and chemotherapy

authors： Sutcliffe JA,O'Brien W,Fyfe C,Grossman TH

更新日期：2013-11-01 00:00:00

abstract：:Four large staphylococcal plasmids ranging in size from 31 to 82 kbp have been shown to mediate tetracycline resistance via an integrated copy of the tet(K)-encoding plasmid pT181 which was flanked by copies of the insertion element IS257. In two cases, IS257 elements interrupted the repC reading frame of pT181 and an...

journal_title：Antimicrobial agents and chemotherapy

authors： Werckenthin C,Schwarz S,Roberts MC

更新日期：1996-11-01 00:00:00

abstract：:A novel stilbene glycoside [piceid-(1-->6)-beta-d-glucopyranoside; PBG] from Parthenocissus tricuspidata was tested in vivo against Plasmodium berghei. PBG exhibited significant blood schizontocidal activity in a 4-day early infection, a repository evaluation, and an established infection, with a significant mean surv...

journal_title：Antimicrobial agents and chemotherapy

authors： Park WH,Lee SJ,Moon HI

更新日期：2008-09-01 00:00:00

abstract：:The in vivo and in vitro determination of significant intracellular stavudine (d4T) triphosphate (d4TTP) concentrations in human immunodeficiency virus (HIV)-infected subjects and NS-1 cells treated with zidovudine (ZDV) has recently been reported. This study was conducted to corroborate these findings with in vivo sa...

journal_title：Antimicrobial agents and chemotherapy

authors： Meléndez M,Blanco R,Delgado W,García R,Santana J,García H,Rosario O,Rodríguez JF

更新日期：2006-03-01 00:00:00

abstract：:E5531, a novel synthetic lipid A analogue, antagonizes the toxic effects of lipopolysaccharide, making it a potential intravenously administered therapeutic agent for the treatment of sepsis. This report describes the distribution of E5531 in human blood and its activity when it is associated with different lipoprotei...

journal_title：Antimicrobial agents and chemotherapy

authors： Rose JR,Mullarkey MA,Christ WJ,Hawkins LD,Lynn M,Kishi Y,Wasan KM,Peteherych K,Rossignol DP

更新日期：2000-03-01 00:00:00

abstract：:Cefamandole has a broader spectrum and greater potency than the other cephalosporins. It includes Haemophilus influenzae, most strains of Enterobacter, and many strains of indole-positive Proteus and Bacteroides, with a lower minimal inhibitory concentration for Escherichia coli, Klebsiella, etc. Concentrations of dru...

journal_title：Antimicrobial agents and chemotherapy

authors： Griffith RS,Black HR,Brier GL,Wolny JD

更新日期：1976-11-01 00:00:00

abstract：:We sought to determine whether there was an interaction between aminoglycoside use and shock in their effect on renal function among seriously ill patients suspected of having gram-negative sepsis. Serial serum creatinine determinations were used to estimate changes in creatinine clearance rates in 179 patients entere...

journal_title：Antimicrobial agents and chemotherapy

authors： Ambinder RF,Moore RD,Smith CR,Mellits ED,Lietman PS

更新日期：1985-02-01 00:00:00

abstract：:Ledipasvir (LDV; GS-5885), a component of Harvoni (a fixed-dose combination of LDV with sofosbuvir [SOF]), is approved to treat chronic hepatitis C virus (HCV) infection. Here, we report key preclinical antiviral properties of LDV, including in vitro potency, in vitro resistance profile, and activity in combination wi...

journal_title：Antimicrobial agents and chemotherapy

authors： Cheng G,Tian Y,Doehle B,Peng B,Corsa A,Lee YJ,Gong R,Yu M,Han B,Xu S,Dvory-Sobol H,Perron M,Xu Y,Mo H,Pagratis N,Link JO,Delaney W

更新日期：2016-01-11 00:00:00

abstract：:Suboptimal doses of amphotericin B in combination with either rifampin or 5-fluorocytosine were better than single-drug therapy in the treatment of disseminated Aspergillus fumigatus infection in mice. Despite the increased effectiveness of combination therapy, none of the therapeutic regimens we used completely eradi...

journal_title：Antimicrobial agents and chemotherapy

authors： Arroyo J,Medoff G,Kobayashi GS

更新日期：1977-01-01 00:00:00

abstract：:The frequency of alleles with triple mutations conferring sulfadoxine-pyrimethamine (SP) resistance in the Peruvian Amazon Basin has declined (16.9% for dhfr and 0% for dhps compared to 47% for both alleles in 1997) 5 years after SP was replaced as the first-line treatment for Plasmodium falciparum malaria. Microsatel...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhou Z,Griffing SM,de Oliveira AM,McCollum AM,Quezada WM,Arrospide N,Escalante AA,Udhayakumar V

更新日期：2008-02-01 00:00:00

abstract：:Four species of members of the family Enterobacteriaceae harboring extended-spectrum beta-lactamase (ESBL) were recovered in a single patient hospitalized in an intensive care unit. Among these isolates, we describe for the first time an ESBL-producing Providencia rettgeri strain. Bacteria from the same species were s...

journal_title：Antimicrobial agents and chemotherapy

authors： Marchandin H,Carriere C,Sirot D,Pierre HJ,Darbas H

更新日期：1999-08-01 00:00:00

abstract：:Violacein is a violet pigment extracted from the gram-negative bacterium Chromobacterium violaceum. It presents bactericidal, tumoricidal, trypanocidal, and antileishmanial activities. We show that micromolar concentrations efficiently killed chloroquine-sensitive and -resistant Plasmodium falciparum strains in vitro;...

journal_title：Antimicrobial agents and chemotherapy

authors： Lopes SC,Blanco YC,Justo GZ,Nogueira PA,Rodrigues FL,Goelnitz U,Wunderlich G,Facchini G,Brocchi M,Duran N,Costa FT

更新日期：2009-05-01 00:00:00

abstract：:A strain of extensively drug-resistant (XDR) Salmonella enterica serovar Typhi has caused a large ongoing outbreak in Pakistan since 2016. In Ontario, Canada, 10 cases of mainly bloodstream infections (n = 9) were identified in patients who traveled to Pakistan. Whole-genome sequencing showed that Canadian cases were ...

journal_title：Antimicrobial agents and chemotherapy

authors： Eshaghi A,Zittermann S,Bharat A,Mulvey MR,Allen VG,Patel SN

更新日期：2020-04-21 00:00:00

abstract：:Multidrug-resistant tuberculosis (MDR-TB) threatens global TB control. The lengthy treatment includes one of the injectable drugs kanamycin, amikacin, and capreomycin, usually for the first 6 months. These drugs have potentially serious toxicities, and when given as intramuscular injections, dosing can be painful. Adv...

journal_title：Antimicrobial agents and chemotherapy

authors： Dharmadhikari AS,Kabadi M,Gerety B,Hickey AJ,Fourie PB,Nardell E

更新日期：2013-06-01 00:00:00

abstract：:Candida species are the cause of 60% of all mycoses in immunosuppressed individuals, leading to ∼150,000 deaths annually due to systemic infections, whereas the current antifungal therapies either have toxic side effects or are insufficiently efficient. We performed a screening of two compound libraries, the Enzo and ...

journal_title：Antimicrobial agents and chemotherapy

authors： Stylianou M,Kulesskiy E,Lopes JP,Granlund M,Wennerberg K,Urban CF

更新日期：2014-01-01 00:00:00

abstract：:For the present report, a novel complex class 1 integron, In60, was characterized. Part of this integron includes the bla(CTX-M-9) gene and its downstream nucleotide sequence, which shares 81% and 78% nucleotide identity with those of kluA-1 beta-lactamase and orf3 of K. ascorbata, respectively. Furthermore, a new ins...

journal_title：Antimicrobial agents and chemotherapy

authors： Sabaté M,Navarro F,Miró E,Campoy S,Mirelis B,Barbé J,Prats G

更新日期：2002-08-01 00:00:00

abstract：:The effect of antacid on the bioavailability of cefprozil was investigated in a two-way crossover study. Eight healthy male subjects received a single 500-mg oral dose of cefprozil with and without coadministration of 30 ml of an antacid suspension containing magnesium hydroxide and aluminum hydroxide (Maalox). Cefpro...

journal_title：Antimicrobial agents and chemotherapy

authors： Shyu WC,Wilber RB,Pittman KA,Barbhaiya RH

更新日期：1992-05-01 00:00:00

abstract：:Chronic wound infections are associated with biofilm formation, which in turn has been correlated with drug resistance. However, the mechanism by which bacteria form biofilms in clinical environments is not clearly understood. This study was designed to investigate the biofilm formation potency of Acinetobacter bauman...

journal_title：Antimicrobial agents and chemotherapy

authors： He X,Lu F,Yuan F,Jiang D,Zhao P,Zhu J,Cheng H,Cao J,Lu G

更新日期：2015-08-01 00:00:00

abstract：:The postantibiotic subminimum inhibitory concentration effect (PA SME) may simulate in vivo drug exposure more accurately than the postantibiotic effect (PAE) since subinhibitory concentrations of drug persist between antibiotic dosings. In this study, we compared the PAEs and PA SMEs of levofloxacin and ciprofloxacin...

journal_title：Antimicrobial agents and chemotherapy

authors： Licata L,Smith CE,Goldschmidt RM,Barrett JF,Frosco M

更新日期：1997-05-01 00:00:00

abstract：:In Portugal erythromycin resistance of 26.6% (n = 352) remained constant during 1998 to 2003, however in 1998 the MLS(B) phenotype dominated (85%), whereas in 2003 the M phenotype prevailed (77%). A decline in T12/emm22 MLS(B) isolates could partially explain the drop in this phenotype, but the rise of the M phenotype...

journal_title：Antimicrobial agents and chemotherapy

authors： Silva-Costa C,Ramirez M,Melo-Cristino J,Portuguese Surveillance Group for the Study of Respiratory Pathogens.

更新日期：2005-05-01 00:00:00

abstract：:In Escherichia coli the frequency of spontaneous single-step mutation to high levels of resistance to the newer 4-quinolone agent norfloxacin was confirmed to be over 300-fold lower than that to the older agent nalidixic acid. Serial passage on incremental concentrations of drug was necessary to produce mutants highly...

journal_title：Antimicrobial agents and chemotherapy

authors： Hooper DC,Wolfson JS,Souza KS,Tung C,McHugh GL,Swartz MN

更新日期：1986-04-01 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：:The spectrum of activity of levofloxacin was initially determined against 29 strains belonging to 16 species of atypical mycobacteria by measuring radiometric MICs. Levofloxacin MICs were 1 to 2 dilutions lower compared with those obtained for ofloxacin and 8 to 64 dilutions lower compared with those obtained for its ...

journal_title：Antimicrobial agents and chemotherapy

authors： Rastogi N,Goh KS,Bryskier A,Devallois A

更新日期：1996-11-01 00:00:00

abstract：:Duck hepatitis B virus (DHBV) replication in primary duck hepatocytes was monitored by examining the synthesis of both DHBV DNA and DHBV core antigen. Several nucleoside analogs which were previously shown to inhibit the replication of DNA viruses (i.e., herpesviruses) and retroviruses were examined for their inhibito...

journal_title：Antimicrobial agents and chemotherapy

authors： Yokota T,Konno K,Chonan E,Mochizuki S,Kojima K,Shigeta S,de Clercq E

更新日期：1990-07-01 00:00:00

abstract：:Invasive and allergic infections by Aspergillus flavus are more common in tropical and subtropical countries. The emergence of voriconazole (VRC) resistance in A. flavus impacts the management of aspergillosis, as azoles are used as the first-line and empirical therapy. We screened 120 molecularly confirmed A. flavus ...

journal_title：Antimicrobial agents and chemotherapy

authors： Sharma C,Kumar R,Kumar N,Masih A,Gupta D,Chowdhary A

更新日期：2018-02-23 00:00:00