Development of a high-performance liquid chromatographic assay for G418 sulfate (Geneticin).

abstract：:Leishmania mexicana is a protozoan parasite that causes a disease in humans with frequent relapses after treatment. It is also highly resistant to the currently available drugs. For this reason, there is an urgent need for more effective antileishmanial drugs. Hydroxyurea, an anticancer drug, is toxic to replicating e...

journal_title：Antimicrobial agents and chemotherapy

authors： Martinez-Rojano H,Mancilla-Ramirez J,Quiñonez-Diaz L,Galindo-Sevilla N

更新日期：2008-10-01 00:00:00

abstract：:Clofazimine (CFZ) is a poorly soluble antibiotic and anti-inflammatory drug indicated for the treatment of leprosy. In spite of its therapeutic value, CFZ therapy is accompanied by the formation of drug biocrystals that accumulate within resident tissue macrophages, without obvious toxicological manifestations. Theref...

journal_title：Antimicrobial agents and chemotherapy

authors： Yoon GS,Keswani RK,Sud S,Rzeczycki PM,Murashov MD,Koehn TA,Standiford TJ,Stringer KA,Rosania GR

更新日期：2016-05-23 00:00:00

abstract：:Ribonucleic acid (RNA) synthesis in the sorbitol-dependent, fragile yeast mutant VY1160 (Venkov et al., 1974) is rapidly inhibited by rifampin. The growth of the mutant cells and protein synthesis are more slowly affected by the antibiotic, apparently as secondary phenomena. Lower doses of rifampin (50 to 100 mug/ml) ...

journal_title：Antimicrobial agents and chemotherapy

authors： Venkov PV,Milchev GI,Hadjiolov AA

更新日期：1975-12-01 00:00:00

abstract：:Four isogenic derivatives with stably increased glycopeptide MICs (all become resistant to teicoplanin) were obtained from four glycopeptide-susceptible clinical isolates of Staphylococcus haemolyticus. All strains were extensively analyzed and compared for a number of distinctive features. In particular, the results ...

journal_title：Antimicrobial agents and chemotherapy

authors： Vignaroli C,Biavasco F,Varaldo PE

更新日期：2006-07-01 00:00:00

abstract：:FCE 22891 is the oral prodrug of FCE 22101, a new broad-spectrum penem. The pharmacokinetics of FCE 22891 after single-dose administration, its absolute bioavailability, and the effect of food intake on its absorption were investigated in three different randomized crossover studies in healthy volunteers. Drug levels ...

journal_title：Antimicrobial agents and chemotherapy

authors： Saathoff A,Lode H,Hampel B,Deppermann KM,Borner K,Koeppe P

更新日期：1990-06-01 00:00:00

abstract：:By the time-kill curve method, the combination of N-formimidoyl thienamycin and gentamicin showed synergism against 47 of 48 strains of enterococci, whereas the combination of N-formimidoyl thienamycin and tobramycin was synergistic against 46 strains. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Watanakunakorn C,Tisone JC

更新日期：1982-12-01 00:00:00

abstract：:The class A carbapenemase KPC-6 produces resistance to a broad range of β-lactam antibiotics. This enzyme hydrolyzes penicillins, the monobactam aztreonam, and carbapenems with similar catalytic efficiencies, ranging from 10(5) to 10(6) M(-1) s(-1). The catalytic efficiencies of KPC-6 against cephems vary to a greater...

journal_title：Antimicrobial agents and chemotherapy

authors： Lamoureaux TL,Frase H,Antunes NT,Vakulenko SB

更新日期：2012-11-01 00:00:00

abstract：:Occidiofungin is produced by the soil bacterium Burkolderia contaminans MS14 and is structurally similar or identical to the burkholdines, xylocandins, and cepacidines. This study identified the primary cellular target of occidiofungin, which was determined to be actin. The modification of occidiofungin with a functio...

journal_title：Antimicrobial agents and chemotherapy

authors： Ravichandran A,Geng M,Hull KG,Li J,Romo D,Lu SE,Albee A,Nutter C,Gordon DM,Ghannoum MA,Lockless SW,Smith L

更新日期：2018-12-21 00:00:00

abstract：:Analogues based on the insect cecropin-bee melittin hybrid peptide (CEME) were studied and analyzed for activity and salt resistance. The new variants were designed to have an increase in amphipathic alpha-helical content (CP29 and CP26) and in overall positive charge (CP26). The alpha-helicity of these peptides was d...

journal_title：Antimicrobial agents and chemotherapy

authors： Friedrich C,Scott MG,Karunaratne N,Yan H,Hancock RE

更新日期：1999-07-01 00:00:00

abstract：:OPC-20011, a new parenteral 2-oxaisocephem antibiotic, has an oxygen atom at the 2- position of the cephalosporin frame. OPC-20011 had the best antibacterial activities against gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA), Enterococcus faecalis, and penicillin-resistant Streptoc...

journal_title：Antimicrobial agents and chemotherapy

authors： Matsumoto M,Tamaoka H,Ishikawa H,Kikuchi M

更新日期：1998-11-01 00:00:00

abstract：:ACH-702, a novel isothiazoloquinolone (ITQ), was assessed for antibacterial activity against a panel of Gram-positive and Gram-negative clinical isolates and found to possess broad-spectrum activity, especially against antibiotic-resistant Gram-positive strains, including methicillin-resistant Staphylococcus aureus (M...

journal_title：Antimicrobial agents and chemotherapy

authors： Pucci MJ,Podos SD,Thanassi JA,Leggio MJ,Bradbury BJ,Deshpande M

更新日期：2011-06-01 00:00:00

abstract：:Pseudomonas aeruginosa pneumonia remains a difficult therapeutic problem. Optimal doses and modes of administration of single agents often do not result in acceptable outcomes. Further, emergence of resistance occurs frequently in this setting with single-agent chemotherapy. The purpose of these experiments was to eva...

journal_title：Antimicrobial agents and chemotherapy

authors： Louie A,Liu W,Fikes S,Brown D,Drusano GL

更新日期：2013-06-01 00:00:00

abstract：:The role of extracellular DNA in the maintenance of biofilms formed by gram-positive and gram-negative bacteria was studied. This study evaluated all the bacterial strains that were tested for the presence of extracellular DNA with an average size of 30 kb in the matrix. Our results indicate changes in community bioma...

journal_title：Antimicrobial agents and chemotherapy

authors： Tetz GV,Artemenko NK,Tetz VV

更新日期：2009-03-01 00:00:00

abstract：:Previous studies have shown that various short- and medium-chain free fatty acids (FFAs) and their corresponding monoacylglycerol esters (MGs) have antibacterial activity in vitro against primarily gram-positive bacteria. More recent studies have also shown that the growth of Helicobacter spp. is inhibited by linoleic...

journal_title：Antimicrobial agents and chemotherapy

authors： Petschow BW,Batema RP,Ford LL

更新日期：1996-02-01 00:00:00

abstract：:Four out of 143 phenotypically isoniazid-resistant but rifampin-susceptible Mycobacterium tuberculosis strains that were isolated from patients in Germany in 2011 had mutations in the rifampin resistance-determining region of rpoB. After performing drug susceptibility testing (DST) with two methods, the proportion met...

journal_title：Antimicrobial agents and chemotherapy

authors： Andres S,Hillemann D,Rüsch-Gerdes S,Richter E

更新日期：2014-01-01 00:00:00

abstract：:In our study we examined the anti-human immunodeficiency virus type 1 (anti-HIV-1) activity of a novel HIV-1 protease inhibitor, PNU-140690 (tipranavir), against patient-derived isolates resistant to multiple other protease inhibitors (PIs). The aim of our experiments was to investigate the genotypes and the in vitro ...

journal_title：Antimicrobial agents and chemotherapy

authors： Rusconi S,La Seta Catamancio S,Citterio P,Kurtagic S,Violin M,Balotta C,Moroni M,Galli M,d'Arminio-Monforte A

更新日期：2000-05-01 00:00:00

abstract：:A series of [(aryl)arylsufanylmethyl]pyridines (AASMP) have been synthesized. These compounds inhibited hemozoin formation, formed complexes (K(D) = 12 to 20 muM) with free heme (ferriprotoporphyrin IX) at a pH close to the pH of the parasite food vacuole, and exhibited antimalarial activity in vitro. The inhibition o...

journal_title：Antimicrobial agents and chemotherapy

authors： Kumar S,Das SK,Dey S,Maity P,Guha M,Choubey V,Panda G,Bandyopadhyay U

更新日期：2008-02-01 00:00:00

abstract：:DNA gyrase is a bacterial enzyme which catalyzes the ATP-dependent negative supercoiling of DNA. It is the accepted target of quinolones. The enzyme from Citrobacter freundii IID976 was purified by affinity chromatography on novobiocin-Sepharose and heparin-Sepharose. It had two subunits, designated A and B, which clo...

journal_title：Antimicrobial agents and chemotherapy

authors： Aoyama H,Sato K,Fujii T,Fujimaki K,Inoue M,Mitsuhashi S

更新日期：1988-01-01 00:00:00

abstract：:The effects of an antacid containing magnesium and aluminum hydroxide on the pharmacokinetics of pefloxacin in 10 healthy volunteers were investigated. In a randomized crossover design, each subject received an oral dose of 400 mg of pefloxacin either with or without multiple doses of the antacid. The concentrations o...

journal_title：Antimicrobial agents and chemotherapy

authors： Jaehde U,Sörgel F,Stephan U,Schunack W

更新日期：1994-05-01 00:00:00

abstract：:The emergence of human immunodeficiency virus type 1 (HIV-1) strains resistant to highly active antiretroviral therapy necessitates continued drug discovery for the treatment of HIV-1 infection. Most current drug discovery strategies focus upon a single aspect of HIV-1 replication. A virus-cell-based assay, which can ...

journal_title：Antimicrobial agents and chemotherapy

authors： Adelson ME,Pacchia AL,Kaul M,Rando RF,Ron Y,Peltz SW,Dougherty JP

更新日期：2003-02-01 00:00:00

abstract：:Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae strains have spread worldwide and become a major threat in health care facilities. Transmission of blaKPC, the plasmid-borne KPC gene, can be mediated by clonal spread and horizontal transfer. Here, we report the complete nucleotide sequences of two nov...

journal_title：Antimicrobial agents and chemotherapy

authors： Chen L,Chavda KD,Melano RG,Hong T,Rojtman AD,Jacobs MR,Bonomo RA,Kreiswirth BN

更新日期：2014-01-01 00:00:00

abstract：:The interrelationships between the pharmacokinetics of zidovudine alone and of zidovudine plus clarithromycin were evaluated with 18 volunteers with AIDS who had no infection with Mycobacterium avium complex or clinical evidence of gastroenteritis. Patients received 200 mg of zidovudine orally every 8 h on days 1 to 4...

journal_title：Antimicrobial agents and chemotherapy

authors： Vance E,Watson-Bitar M,Gustavson L,Kazanjian P

更新日期：1995-06-01 00:00:00

abstract：:The efficacy of linezolid and temporin A in the prevention of prosthetic graft infection due to methicillin-resistant Staphylococcus epidermidis with intermediate resistance to glycopeptides was investigated in a subcutaneous rat pouch model. Linezolid and temporin A, alone or combined, greatly reduced the bacterial n...

journal_title：Antimicrobial agents and chemotherapy

authors： Giacometti A,Cirioni O,Ghiselli R,Orlando F,D'Amato G,Kamysz W,Mocchegiani F,Sisti V,Silvestri C,Łukasiak J,Rocchi M,Saba V,Scalise G

更新日期：2004-08-01 00:00:00

abstract：:The VanR-VanS two-component system is responsible for inducing resistance to glycopeptide antibiotics in various bacteria. We have performed a comparative study of the VanR-VanS systems from two streptomyces strains, Streptomyces coelicolor and Streptomyces toyocaensis, to characterize how the two proteins cooperate t...

journal_title：Antimicrobial agents and chemotherapy

authors： Novotna GB,Kwun MJ,Hong HJ

更新日期：2015-12-28 00:00:00

abstract：:The efficacy of a new liposomal formulation of amphotericin B was compared to that of amphotericin B deoxycholate (Fungizone) in a murine model of visceral leishmaniasis induced by Leishmania infantum. Median effective doses (ED50) were determined with two different strains: strain 1 was obtained from an untreated pat...

journal_title：Antimicrobial agents and chemotherapy

authors： Paul M,Durand R,Fessi H,Rivollet D,Houin R,Astier A,Deniau M

更新日期：1997-08-01 00:00:00

abstract：:Sterol delta22-desaturase has been purified from a strain of Candida glabrata with a disruption in the gene encoding sterol 14alpha-demethylase (cytochrome P-45051; CYP51). The purified cytochrome P-450 exhibited sterol delta22-desaturase activity in a reconstituted system with NADPH-cytochrome P-450 reductase in dila...

journal_title：Antimicrobial agents and chemotherapy

authors： Lamb DC,Maspahy S,Kelly DE,Manning NJ,Geber A,Bennett JE,Kelly SL

更新日期：1999-07-01 00:00:00

abstract：:The judicious use of perioperative antibiotic prophylaxis reduces the infectious complications of surgery. However, increased bacterial resistance within hospitals may make antibiotic prophylaxis less effective in the future and alternative strategies are needed. New immunomodulatory agents might prevent wound infecti...

journal_title：Antimicrobial agents and chemotherapy

authors： Kernodle DS,Gates H,Kaiser AB

更新日期：1998-03-01 00:00:00

abstract：:The motility of viable Trichomonas vaginalis organisms is readily demonstrable in a clinical wet mount or cultured specimens. We attempted to determine whether migration is a dynamic process such that the organisms move to avoid exposure to toxic antimicrobial agents. With the use of axenic cultures of T. vaginalis th...

journal_title：Antimicrobial agents and chemotherapy

authors： Sugarman B,Mummaw N

更新日期：1988-09-01 00:00:00

abstract：:We studied the susceptibilities of 77 strains of Neisseria gonorrhoeae to four antibiotics: cefpodoxime, ceftriaxone, penicillin, and tetracycline. All strains were susceptible to ceftriaxone. Cefpodoxime MICs (range, 0.001 to 0.125 micrograms/ml) were parallel to and approximately four times those of ceftriaxone, and...

journal_title：Antimicrobial agents and chemotherapy

authors： Fekete T,Woodwell J,Cundy KR

更新日期：1991-03-01 00:00:00

abstract：:The emergence of Neisseria gonorrhoeae isolates displaying resistance to antimicrobial agents is a major public health concern and a serious issue related to the occurrence of further untreatable gonorrhea infections. A retrospective analysis on 1,430 N. gonorrhoeae isolates, collected from 2003 through 2012, for anti...

journal_title：Antimicrobial agents and chemotherapy

authors： Carannante A,Renna G,Dal Conte I,Ghisetti V,Matteelli A,Prignano G,Impara G,Cusini M,D'Antuono A,Vocale C,Antonetti R,Gaino M,Busetti M,Latino MA,Mencacci A,Bonanno C,Cava MC,Giraldi C,Stefanelli P

更新日期：2014-10-01 00:00:00