Chemical diversity of polyene macrolides produced by Streptomyces noursei ATCC 11455 and recombinant strain ERD44 with genetically altered polyketide synthase NysC.

abstract：:Streptomycin, the first antibiotic used in tuberculosis control programs, perturbs protein synthesis at the ribosome level. It is shown here that streptomycin resistance in some clinical isolates of Mycobacterium tuberculosis is associated either with missense mutations in the rpsL gene, which encodes ribosomal protei...

journal_title：Antimicrobial agents and chemotherapy

authors： Honoré N,Cole ST

更新日期：1994-02-01 00:00:00

abstract：:MICs of a set of cephalosporins against a variety of gram-positive and gram-negative pathogens showed no strong correlations with the rate at which these inhibitors acylate or are deacylated by beta-lactam-sensitive DD-peptidases excreted by Streptomyces sp. strain R61 and Actinomadura sp. strain R39. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Boyd DB,Ott JL

更新日期：1986-05-01 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：:Gentamicin entrapped within stable multilamellar liposomes was used to treat mice after they were infected per os with Salmonella dublin. Of 10 mice, 8 survived after a single intravenous (i.v.) injection of 2 mg of gentamicin liposomes per kg compared with 0 of 10 treated with the same amount of free gentamicin. All ...

journal_title：Antimicrobial agents and chemotherapy

authors： Fierer J,Hatlen L,Lin JP,Estrella D,Mihalko P,Yau-Young A

更新日期：1990-02-01 00:00:00

abstract：:The most appropriate vancomycin dosing strategy in pediatric patients weighing ≥70 kg (weight based versus non-weight based) to achieve an area under the concentration-time curve (AUC) of ≥400 mg·liter/h and a trough concentration of <20 mg/liter is not known. Population pharmacokinetic analysis determined that dosing...

journal_title：Antimicrobial agents and chemotherapy

authors： Moffett BS,Ivaturi V,Morris J,Akcan Arikan A,Dutta A

更新日期：2019-03-27 00:00:00

abstract：:The MICs of pyrazinamide (PZA) were determined for Mycobacterium tuberculosis cultivated under different pH conditions in 7H12 liquid medium. Mycobacterial growth was monitored by the radiometric method (BACTEC system; Johnston Laboratories, Inc., Towson, Md.). We observed a predictable eightfold difference between th...

journal_title：Antimicrobial agents and chemotherapy

authors： Salfinger M,Heifets LB

更新日期：1988-07-01 00:00:00

abstract：:To test the hypothesis that establishing gastrointestinal colonization with multiresistant Enterococcus faecium (VRE) C68 results from expansion of the enterococcal population in the upper small bowel, we compared VRE quantities recovered from the proximal, middle, and distal segments of the small bowel from mice trea...

journal_title：Antimicrobial agents and chemotherapy

authors： Lakticová V,Hutton-Thomas R,Meyer M,Gurkan E,Rice LB

更新日期：2006-09-01 00:00:00

abstract：:The nucleotide sequence of pNL194, a VIM-1-encoding plasmid, is described in this study. pNL194 (79,307 bp) comprised an IncN-characteristic segment (38,940 bp) and a mosaic structure (40,367 bp) including bla(VIM-1), aacA7, aadA1, aadA2, dfrA1, dfrA12, aphA1, strA, strB, and sul1. Tn1000 or Tn5501 insertion within fi...

journal_title：Antimicrobial agents and chemotherapy

authors： Miriagou V,Papagiannitsis CC,Kotsakis SD,Loli A,Tzelepi E,Legakis NJ,Tzouvelekis LS

更新日期：2010-10-01 00:00:00

abstract：:Pipemidic acid was absorbed well by the oral route. Its peak levels in plasma ranged from 4 to 12 mug/ml at an oral dose of about 50 mg/kg in mice, rats, dogs, monkeys, and men. The protein binding of pipemidic acid was about 20% in dog plasma and about 30% in human serum. Pipemidic acid was distributed to most of the...

journal_title：Antimicrobial agents and chemotherapy

authors： Shimizu M,Nakamura S,Takase Y,Kurobe N

更新日期：1975-04-01 00:00:00

abstract：:Atazanavir (Reyataz; ATV) is a well-tolerated protease inhibitor (PI) that is indicated as a once-daily treatment for HIV infections. These features of ATV, combined with its virologic potency, make it particularly desirable for the treatment of HIV-infected pediatric patients. The objective of this study was to use a...

journal_title：Antimicrobial agents and chemotherapy

authors： Hong Y,Kowalski KG,Zhang J,Zhu L,Horga M,Bertz R,Pfister M,Roy A

更新日期：2011-12-01 00:00:00

abstract：:The effects of multiple-dose administration of tenofovir disoproxil fumarate (TDF) on the pharmacokinetics of morinidazole (MOR) were compared in healthy subjects. MOR exposure was similar, with an area under the curve from 0 h to infinity (AUC0-∞) treatment ratio for MOR+TDF/MOR of 1.01 (90% confidence interval, 0.97...

journal_title：Antimicrobial agents and chemotherapy

authors： Wu G,Tang W,Lv D,Wu L,Zhou H,Yang X,Zheng Y,Zhai Y,Shentu J

更新日期：2020-04-21 00:00:00

abstract：:Eighty percent (21 of 26) of macrolide-resistant Peptostreptococcus strains studied harbored the ermTR gene. This methyltransferase gene is also the most frequently found gene among macrolide-lincosamide-streptogramin B-resistant Streptococcus pyogenes strains. Transfer of the ermTR gene from Peptostreptococcus magnus...

journal_title：Antimicrobial agents and chemotherapy

authors： Reig M,Galan J,Baquero F,Perez-Diaz JC

更新日期：2001-02-01 00:00:00

abstract：:Oxacillin-resistant Staphylococcus aureus is rapidly killed by the endopeptidase lysostaphin, and the addition of beta-lactam antibiotics provides synergistic killing. We investigated the possibility that beta-lactams given in combination with lysostaphin would improve the activity of lysostaphin against oxacillin-res...

journal_title：Antimicrobial agents and chemotherapy

authors： Kiri N,Archer G,Climo MW

更新日期：2002-06-01 00:00:00

abstract：:We have cloned a 4.9-kilobase (kb) HincII fragment which contains a tetracycline resistance determinant (tetM) from the chromosome of Ureaplasma urealyticum. The 4.9-kb HincII fragment contains DNA in addition to the structural gene, is closely related to the previously characterized 5.0-kb fragment from pJI3, and con...

journal_title：Antimicrobial agents and chemotherapy

authors： Brown JT,Roberts MC

更新日期：1987-11-01 00:00:00

abstract：:Growth of Mycoplasma pneumoniae was completely prevented by 0.06 mug of actinomycin D/ml, and 0.00375 mug/ml caused 90% inhibition. It thus appears that M. pneumoniae is more susceptible to actinomycin D than previously reported. Low concentrations (0.019 mug/ml) of the antibiotic primarily inhibited ribonucleic acid ...

journal_title：Antimicrobial agents and chemotherapy

authors： Fletcher RD,Jayavasu C,Yoo S,Albertson JN

更新日期：1973-09-01 00:00:00

abstract：:By cloning studies and complementation experiments, the sulfonamide resistance gene of a serogroup B and serotype 15 (B:15) strain of Neisseria meningitidis was localized to a 1.2-kb chromosomal SspI fragment expressing a drug-resistant dihydropteroate synthase. The fragment hybridized to DNA from both resistant and s...

journal_title：Antimicrobial agents and chemotherapy

authors： Kristiansen BE,Rådström P,Jenkins A,Ask E,Facinelli B,Sköld O

更新日期：1990-11-01 00:00:00

abstract：:An NDM-1 carbapenemase-producing Pseudomonas aeruginosa isolate was recovered from a patient hospitalized in France after a previous hospitalization in Serbia. Genetic studies revealed that the blaNDM-1 gene was surrounded by insertion sequence ISAba125 and a truncated bleomycin resistance gene. This blaNDM-1 region w...

journal_title：Antimicrobial agents and chemotherapy

authors： Janvier F,Jeannot K,Tessé S,Robert-Nicoud M,Delacour H,Rapp C,Mérens A

更新日期：2013-07-01 00:00:00

abstract：:Candida albicans and Staphylococcus aureus form vigorous polymicrobial biofilms in serum, which may serve as the source of coinfection in patients. More importantly, S. aureus is highly resistant to vancomycin during polymicrobial biofilm formation, with no decreases in bacterial viability observed with up to 1,600 mi...

journal_title：Antimicrobial agents and chemotherapy

authors： Harriott MM,Noverr MC

更新日期：2010-09-01 00:00:00

abstract：:Phosphorothioate oligonucleotides complementary to mRNA of the human cytomegalovirus (HCMV) DNA polymerase gene or to RNA transcripts of the major immediate-early regions 1 and 2 (IE1 and IE2) of HCMV were evaluated for antiviral activity in a 96-well immunoassay with primary human dermal fibroblasts as host cells. Ol...

journal_title：Antimicrobial agents and chemotherapy

authors： Azad RF,Driver VB,Tanaka K,Crooke RM,Anderson KP

更新日期：1993-09-01 00:00:00

abstract：:Ethambutol (EMB) plays a pivotal role in the chemotherapy of drug-resistant tuberculosis (TB), including multidrug-resistant tuberculosis (MDR-TB). Resistance to EMB is considered to be caused by mutations in the embCAB operon (embC, embA, and embB). In this study, we analyzed the embCAB mutations among 139 MDR-TB iso...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhao LL,Sun Q,Liu HC,Wu XC,Xiao TY,Zhao XQ,Li GL,Jiang Y,Zeng CY,Wan KL

更新日期：2015-04-01 00:00:00

abstract：:Diabetic foot ulcer treatment currently focuses on targeting bacterial biofilms, while dismissing fungi. To investigate this, we used an in vitro biofilm model containing bacteria and fungi, reflective of the wound environment, to test the impact of antimicrobials. Here we showed that while monotreatment approaches in...

journal_title：Antimicrobial agents and chemotherapy

authors： Townsend EM,Sherry L,Kean R,Hansom D,Mackay WG,Williams C,Butcher J,Ramage G

更新日期：2017-08-24 00:00:00

abstract：:The global spread of carbapenem-resistant Klebsiella pneumoniae (CR-Kp) has been largely associated with sequence type 258 (ST258) and its related variants (clonal group 258 [CG258]). Here we describe the molecular epidemiology of CR-Kp from five tertiary care hospitals in Medellín, the second largest city in Colombia...

journal_title：Antimicrobial agents and chemotherapy

authors： Ocampo AM,Chen L,Cienfuegos AV,Roncancio G,Chavda KD,Kreiswirth BN,Jiménez JN

更新日期：2015-10-26 00:00:00

abstract：:We have conducted experiments to determine if one daily injection of netilmicin (NET) would be synergistic with the broad-spectrum cephalosporin ceftriaxone (CRO) in the treatment of experimentally induced endocarditis. Rats with catheter-induced aortic vegetations were infected intravenously with 3 x 10(7) CFU of a b...

journal_title：Antimicrobial agents and chemotherapy

authors： Francioli PB,Glauser MP

更新日期：1993-02-01 00:00:00

abstract：:Depending on the spacing of their positive charges, ionenes, a class of quaternary ammonium polymers, increased the interferon-inducing activity of poly(inosinic acid).poly(cytidylic acid) in mouse L-929 cells, whereas they did not enhance poly(inosinic acid).poly(cytidylic acid) induced interferon production in prima...

journal_title：Antimicrobial agents and chemotherapy

authors： Clercq ED,Janik B,Sommer RG

更新日期：1977-04-01 00:00:00

abstract：:We report the ultrastructural alterations induced during the proliferative stages of Trypanosoma (Schizotrypanum) cruzi, the causative agent of Chagas' disease, by two ergosterol biosynthesis inhibitors, ketoconazole and terbinafine, which had previously been shown to be potent growth inhibitors whose effects are pote...

journal_title：Antimicrobial agents and chemotherapy

authors： Lazardi K,Urbina JA,de Souza W

更新日期：1990-11-01 00:00:00

abstract：:The pharmacokinetics of piperacillin were examined after single intravenous doses to three groups of male patients with creatinine clearances of greater than or equal to 60 (group I), greater than or equal to 20 but less than 60 (group II), and less than 20 (group III) ml/min per 1.73 m2. Each of 32 patients received ...

journal_title：Antimicrobial agents and chemotherapy

authors： Welling PG,Craig WA,Bundtzen RW,Kwok FW,Gerber AU,Madsen PO

更新日期：1983-06-01 00:00:00

abstract：:Various steroids were tested for their effects upon gonococcal O2 consumption and glucose catabolism. The ability to inhibit gonococcal O2 uptake appeared to be related to the molecular configuration of the steroid. The presence of lipophilic groups enhanced inhibition, whereas the addition of hydrophilic groups marke...

journal_title：Antimicrobial agents and chemotherapy

authors： Lysko PG,Morse SA

更新日期：1980-08-01 00:00:00

abstract：:Pentamidine is a second-line agent in the treatment of leishmaniasis whose mode of action and resistance mechanism are not well understood. In this work, we show that the intracellular ABC protein PRP1 (pentamidine resistance protein 1) (ABCC7) can confer resistance to pentamidine in Leishmania sp. parasites in the in...

journal_title：Antimicrobial agents and chemotherapy

authors： Coelho AC,Messier N,Ouellette M,Cotrim PC

更新日期：2007-08-01 00:00:00

abstract：:Antibiotic penetration to the infection site is critical for obtaining a good clinical outcome in patients with ventilator-associated pneumonia (VAP). Surprisingly few studies have quantified the penetration of β-lactam agents into the lung, as measured by the ratio of area under the concentration-time curve (AUC) in ...

journal_title：Antimicrobial agents and chemotherapy

authors： Lodise TP,Sorgel F,Melnick D,Mason B,Kinzig M,Drusano GL

更新日期：2011-04-01 00:00:00

abstract：:Candida lusitaniae is usually susceptible to echinocandins. Beta-1,3-glucan synthase encoded by FKS genes is the target of echinocandins. A few missense mutations in the C. lusitaniae FKS1 hot spot 1 (HS1) have been reported. We report here the rapid emergence of antifungal resistance in C. lusitaniae isolated during ...

journal_title：Antimicrobial agents and chemotherapy

authors： Asner SA,Giulieri S,Diezi M,Marchetti O,Sanglard D

更新日期：2015-12-01 00:00:00