Reproducibility of control strains for antibiotic susceptibility testing.

Abstract:

:Inter- and intralaboratory reproducibility of susceptibility testing requires stable control strains. The Food and Drug Administration diffusion procedure recommends the Seattle strains of Staphylococcus aureus (ATCC 25923) and Escherichia coli (ATCC 25922) for this purpose. It was of interest to determine the present reproducibility of control cultures maintained in various laboratories over several years. Fifteen cultures each of S. aureus and E. coli were obtained from laboratories in different parts of the country. Their performance was compared with strains directly derived from ATCC. Diffusion susceptibility tests using a modified overlay technique were made with four replicates. Seven of the eight statistically significant differences in responses of the staphylococci were to penicillin, methicillin, or cephalothin. One culture was a penicillinase producer with a zone 15 mm less than the standard strain. Eleven of the 15 cultures showed no significant deviations or differences greater than 2 mm from the results with the strain derived directly from ATCC. All except the penicillinase producer were of identical phage type. Among 150 organism-antibiotic combinations tested with E. coli, all but one reading were within 2 mm of the standard. Four of the six statistically significant differences were in a culture from one laboratory. The stability of the cultures appears to have been influenced by the method of storage. Cultures that were kept frozen during extended storage were remarkably stable. Significant differences were found in cultures from four of five laboratories that maintained cultures in refrigerators or at ambient temperature.

authors

Coyle MB,Lampe MF,Aitken CL,Feigl P,Sherris JC

doi

10.1128/aac.10.3.436

subject

Has Abstract

pub_date

1976-09-01 00:00:00

pages

436-40

issue

3

eissn

0066-4804

issn

1098-6596

journal_volume

10

pub_type

杂志文章
  • Nonradioactive DNA probe for detection of gene for methicillin resistance in Staphylococcus aureus.

    abstract::A DNA probe was developed by inserting, in the SmaI site of pBluescript sK, a 528-bp fragment of the gene responsible for intrinsic resistance to beta-lactam antibiotics in Staphylococcus aureus (mec determinant). The mec probe provided a useful tool for the rapid identification of the intrinsic resistance trait and f...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.35.3.575

    authors: Ligozzi M,Rossolini GM,Tonin EA,Fontana R

    更新日期:1991-03-01 00:00:00

  • Clinical isolate of herpes simplex virus type 2 that induces a thymidine kinase with altered substrate specificity.

    abstract::In vitro and in vivo studies were done on a herpes simplex virus type 2 strain recovered from a patient on acyclovir (ACV) which was ACV resistant but expressed thymidine (dThd) kinase (EC 2.7.1.21) activity. Plaque-purified clones derived from the original clinical sample were heterogeneous with respect to plaque siz...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.31.7.1117

    authors: Ellis MN,Keller PM,Fyfe JA,Martin JL,Rooney JF,Straus SE,Lehrman SN,Barry DW

    更新日期:1987-07-01 00:00:00

  • Side effects of minocycline: a double-blind study.

    abstract::We studied the incidence and type of side effects of minocycline in a double-blind study. A total of 45 volunteers (18 men and 27 women) were given minocycline, and 44 volunteers (23 men and 21 women) were given placebo. The men in both the minocycline and placebo groups were significantly (P < 0.0001) larger than the...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1128/aac.11.4.712

    authors: Fanning WL,Gump DW,Sofferman RA

    更新日期:1977-04-01 00:00:00

  • Defective killing of enterococci: a common property of antimicrobial agents acting on the cell wall.

    abstract::We tested the ability of antimicrobial agents that act on the cell wall to kill enterococci and found defective killing (a minimal bactericidal concentration/minimal inhibitory concentration ratio of greater than or equal to 32) with both beta-lactams (penicillin G and cephalothin) and non-beta-lactams (vancomycin, cy...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.17.6.965

    authors: Krogstad DJ,Pargwette AR

    更新日期:1980-06-01 00:00:00

  • Biological assay of streptonigrin (NSC 45383) in body fluids and tissues of mice.

    abstract::Streptonigrin, a quinone antitumor antibiotic, has been reported to be effective in human trials. A sensitive and precise microbiological assay for the determination of distribution and concentrations of streptonigrin in the body fluids and tissues of treated mice has been developed in an attempt to supplement success...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.5.1.82

    authors: Pittillo RF,Woolley C

    更新日期:1974-01-01 00:00:00

  • Bioluminescent Reporters for Rapid Mechanism of Action Assessment in Tuberculosis Drug Discovery.

    abstract::The tuberculosis (TB) drug discovery pipeline is fueled by compounds identified in whole-cell screens against the causative agent, Mycobacterium tuberculosis Phenotypic screening enables the selection of molecules that inhibit essential cellular functions in live, intact bacilli grown under a chosen in vitro condition...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01178-16

    authors: Naran K,Moosa A,Barry CE 3rd,Boshoff HI,Mizrahi V,Warner DF

    更新日期:2016-10-21 00:00:00

  • 7-(Alpha-(1-methyl-4-pyridinothio)-acetamido) cephalosporanic acid.

    abstract::7-[alpha-(1-Methyl-4-pyridiniothio)-acetamido] cephalosporanic acid, referred to herein as BL-S 217, is a new broad-spectrum semisynthetic cephalosporin that offers several advantages over cephalothin. A comparison of the activity in vitro of these antibiotics indicates that BL-S 217 is about eightfold more effective ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.1.1.67

    authors: Buck RE,Leitner F,Price KE

    更新日期:1972-01-01 00:00:00

  • Raltegravir permeability across blood-tissue barriers and the potential role of drug efflux transporters.

    abstract::The objectives of this study were to investigate raltegravir transport across several blood-tissue barrier models and the potential interactions with drug efflux transporters. Raltegravir uptake, accumulation, and permeability were evaluated in vitro in (i) P-glycoprotein (P-gp), breast cancer resistance protein (BCRP...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.04594-14

    authors: Hoque MT,Kis O,De Rosa MF,Bendayan R

    更新日期:2015-05-01 00:00:00

  • Mutations conferring resistance to a potent hepatitis C virus serine protease inhibitor in vitro.

    abstract::BILN 2061 is a novel, specific hepatitis C virus (HCV) NS3 serine protease inhibitor discovered by Boehringer Ingelheim that has shown potent activity against HCV replicons in tissue culture and is currently under clinical investigation for the treatment of HCV infection. The poor fidelity of the HCV RNA-dependent RNA...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.48.6.2260-2266.2004

    authors: Lu L,Pilot-Matias TJ,Stewart KD,Randolph JT,Pithawalla R,He W,Huang PP,Klein LL,Mo H,Molla A

    更新日期:2004-06-01 00:00:00

  • Effect of grapefruit juice on clarithromycin pharmacokinetics.

    abstract::To investigate whether grapefruit juice inhibits the metabolism of clarithromycin, 12 healthy subjects were given water or grapefruit juice before and after a clarithromycin dose of 500 mg in a randomized crossover study. Administration of grapefruit juice increased the time to peak concentration of both clarithromyci...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1128/AAC.42.4.927

    authors: Cheng KL,Nafziger AN,Peloquin CA,Amsden GW

    更新日期:1998-04-01 00:00:00

  • Tetracycline resistance in Salmonella enterica subsp. enterica serovar Dublin.

    abstract::The 47-kbp plasmid pGFT1 from Salmonella enterica subsp. enterica serovar Dublin mediated tetracycline resistance via a tet(A) gene located on an integrated copy of a Tn1721-analogous transposon. The integration site of the transposon was located within the reading frame of a fip gene. Plasmid pGFT1 was shown to be co...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.42.5.1288

    authors: Frech G,Schwarz S

    更新日期:1998-05-01 00:00:00

  • Related clones containing SCCmec type IV predominate among clinically significant Staphylococcus epidermidis isolates.

    abstract::SCCmec is a mobile genetic element that carries the gene (mecA) mediating methicillin resistance in staphylococci. For Staphylococcus aureus, four SCCmec types have been described, one (type IV) of which has been associated with newly identified community-acquired methicillin-resistant S. aureus. However, the distribu...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.47.11.3574-3579.2003

    authors: Wisplinghoff H,Rosato AE,Enright MC,Noto M,Craig W,Archer GL

    更新日期:2003-11-01 00:00:00

  • Multicenter Evaluation of Ceftazidime-Avibactam and Ceftolozane-Tazobactam Inhibitory Activity against Meropenem-Nonsusceptible Pseudomonas aeruginosa from Blood, Respiratory Tract, and Wounds.

    abstract::The recent escalation of occurrences of carbapenem-resistant Pseudomonas aeruginosa has been recognized globally and threatens to erode the widespread clinical utility of the carbapenem class of compounds for this prevalent health care-associated pathogen. Here, we compared the in vitro inhibitory activity of ceftazid...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章,多中心研究

    doi:10.1128/AAC.00875-17

    authors: Grupper M,Sutherland C,Nicolau DP

    更新日期:2017-09-22 00:00:00

  • In vitro activities of methylenecyclopropane analogues of nucleosides and their phosphoralaninate prodrugs against cytomegalovirus and other herpesvirus infections.

    abstract::Human cytomegalovirus (HCMV) infection does not generally cause problems in the immunocompetent adult but can result in severe clinical disease in the fetus, neonate, and immunocompromised host. Ganciclovir (GCV), the agent currently used to treat most HCMV infections, has resulted in much therapeutic success; however...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.44.6.1506-1511.2000

    authors: Rybak RJ,Hartline CB,Qiu YL,Zemlicka J,Harden E,Marshall G,Sommadossi JP,Kern ER

    更新日期:2000-06-01 00:00:00

  • In vitro activities of a new lipopeptide, HMR 1043, against susceptible and resistant gram-positive isolates.

    abstract::The purpose of this study was to compare the activity of HMR 1043 with those of daptomycin and teicoplanin against gram-positive isolates. Susceptibility tests were performed for 52 strains, 26 parental strains, including staphylococcal, streptococcal, enterococcal, and listerial strains, and 26 HMR 1043-resistant mut...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.47.9.3025-3029.2003

    authors: Bemer P,Juvin ME,Bryskier A,Drugeon H

    更新日期:2003-09-01 00:00:00

  • Isolation of trimethoprim-resistant, sulfonamide-susceptible Enterobacteriaceae from urinary tract infections.

    abstract::The isolation of trimethoprim-resistant, sulfonamide-susceptible Enterobacteriaceae causing urinary tract infections is reported. The appearance of these strains followed the introduction of trimethoprim alone for use as treatment. Trimethoprim resistance was attributable to plasmids or transposons less frequently in ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.23.4.617

    authors: Towner KJ,Smith MA,Cowlishaw WA

    更新日期:1983-04-01 00:00:00

  • Characterization of a respiratory syncytial virus L protein inhibitor.

    abstract::The respiratory syncytial virus (RSV) L protein is a viral RNA-dependent RNA polymerase that contains multiple enzyme activities required for RSV replication. The RSV L inhibitors described in literature are limited by their cytotoxicity or the lack of RSV B subtype coverage. Here, we characterize a new RSV L inhibito...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.02540-14

    authors: Tiong-Yip CL,Aschenbrenner L,Johnson KD,McLaughlin RE,Fan J,Challa S,Xiong H,Yu Q

    更新日期:2014-07-01 00:00:00

  • Pharmacodynamics of Ceftazidime and Avibactam in Neutropenic Mice with Thigh or Lung Infection.

    abstract::Avibactam is a new non-β-lactam β-lactamase inhibitor that shows promising restoration of ceftazidime activity against microorganisms producing Ambler class A extended-spectrum β-lactamases (ESBLs) and carbapenemases such as KPCs, class C β-lactamases (AmpC), and some class D enzymes. To determine optimal dosing combi...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01269-15

    authors: Berkhout J,Melchers MJ,van Mil AC,Seyedmousavi S,Lagarde CM,Schuck VJ,Nichols WW,Mouton JW

    更新日期:2015-11-02 00:00:00

  • Mechanisms involved in the selection of HIV-1 reverse transcriptase thumb subdomain polymorphisms associated with nucleoside analogue therapy failure.

    abstract::Previous studies showed an increased prevalence of human immunodeficiency virus type 1 (HIV-1) reverse transcriptase (RT) thumb subdomain polymorphisms Pro272, Arg277, and Thr286 in patients failing therapy with nucleoside analogue combinations. Interestingly, wild-type HIV-1(BH10) RT contains Pro272, Arg277, and Thr2...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.00716-10

    authors: Betancor G,Puertas MC,Nevot M,Garriga C,Martínez MA,Martinez-Picado J,Menéndez-Arias L

    更新日期:2010-11-01 00:00:00

  • Antibody responses to in vitro translation products following albendazole therapy for Echinococcus granulosus.

    abstract::Immunoprecipitation of antigens translated in vitro from Echinococcus granulosus RNA revealed that albendazole treatment of human hydatidosis induced antibodies to previously undetectable antigens and that the response to most antigens was specific, although cross-reactivity was observed between Schistosoma mansoni an...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.35.8.1674

    authors: Blanton RE,Okelo GB,Kijobe J,King CH

    更新日期:1991-08-01 00:00:00

  • Effect of antacid on the bioavailability of cefprozil.

    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

    pub_type: 杂志文章

    doi:10.1128/aac.36.5.962

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

    更新日期:1992-05-01 00:00:00

  • In vitro antimicrobial activity of doripenem, a new carbapenem.

    abstract::The doripenem MICs at which 90% of the tested strains were inhibited ranged from 0.03 to 1 microg/ml for 10 species of Enterobacteriaceae (n = 351), from 0.03 to 0.12 microg/ml for oxacillin-susceptible staphylococci (n = 119), from 4 to 32 microg/ml for oxacillin-resistant staphylococci (n = 64), from < or =0.008 to ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.48.4.1384-1396.2004

    authors: Ge Y,Wikler MA,Sahm DF,Blosser-Middleton RS,Karlowsky JA

    更新日期:2004-04-01 00:00:00

  • Comparative antimalarial activities of six pairs of 1,2,4,5-tetraoxanes (peroxide dimers) and 1,2,4,5,7,8-hexaoxonanes (peroxide trimers).

    abstract::Six tetraoxanes had 50% inhibitory concentrations in the range of 10 to 100 ng/ml against Plasmodium falciparum, whereas the corresponding hexaoxonanes had minimal antimalarial activity. The lack of iron-mediated reactivity of the hexaoxonanes may explain their low activity compared to the tetraoxanes, the latter of w...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.00264-07

    authors: Dong Y,Creek D,Chollet J,Matile H,Charman SA,Wittlin S,Wood JK,Vennerstrom JL

    更新日期:2007-08-01 00:00:00

  • Multiple antibiotic resistance (mar) locus protects Escherichia coli from rapid cell killing by fluoroquinolones.

    abstract::The multiple antibiotic resistance (mar) locus in Escherichia coli consists of two divergently expressed operons (marC and marRAB), both of which contribute to the Mar phenotype. Overexpression of the marRAB operon protected E. coli against rapid cell killing by fluoroquinolones. Inactivation of the operon in mar muta...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.40.5.1266

    authors: Goldman JD,White DG,Levy SB

    更新日期:1996-05-01 00:00:00

  • Population pharmacokinetics of escalating doses of caspofungin in a phase II study of patients with invasive aspergillosis.

    abstract::Caspofungin (CAS) is approved for second-line management of proven or probable invasive aspergillosis at a dose of 50 mg once daily (QD). Preclinical and limited clinical data support the concept of the dose-dependent antifungal efficacy of CAS with preservation of its favorable safety profile. Little is known, howeve...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01912-12

    authors: Würthwein G,Cornely OA,Trame MN,Vehreschild JJ,Vehreschild MJ,Farowski F,Müller C,Boos J,Hempel G,Hallek M,Groll AH

    更新日期:2013-04-01 00:00:00

  • Role of urine neutrophil gelatinase-associated lipocalin in the early diagnosis of amphotericin B-induced acute kidney injury.

    abstract::Determination of the neutrophil gelatinase-associated lipocalin (NGAL) level can be used to detect acute kidney injury (AKI) earlier than determination of the serum creatinine (SCr) level in settings such as cardiac surgery, contrast nephropathy, and intensive care units. We hypothesized that urine NGAL (UrNGAL) would...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01079-15

    authors: Rocha PN,Macedo MN,Kobayashi CD,Moreno L,Guimarães LH,Machado PR,Badaró R,Carvalho EM,Glesby MJ

    更新日期:2015-11-01 00:00:00

  • Potent in vitro antimalarial activity of metacycloprodigiosin isolated from Streptomyces spectabilis BCC 4785.

    abstract::Bioassay-guided fractionation of the extract from the fermentation broth of Streptomyces spectabilis BCC 4785 led to the isolation of three principle antimalarial agents, metacycloprodigiosin, bafilomycin A(1), and spectinabilin. Metacycloprodigiosin exhibited potent in vitro activity against Plasmodium falciparum K1,...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.46.4.1112-1113.2002

    authors: Isaka M,Jaturapat A,Kramyu J,Tanticharoen M,Thebtaranonth Y

    更新日期:2002-04-01 00:00:00

  • In vitro study of sequential fluconazole and caspofungin treatment against Candida albicans biofilms.

    abstract::Candida albicans biofilms are generally considered to be resistant to azole antifungal agents but susceptible to echinocandins. We demonstrate that in a sequential therapy regimen, treatment with fluconazole first followed by caspofungin leads to a significant decrease of the efficacy of this echinocandin. Cellular st...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01745-13

    authors: Sarkar S,Uppuluri P,Pierce CG,Lopez-Ribot JL

    更新日期:2014-01-01 00:00:00

  • Azole resistance profile of amino acid changes in Aspergillus fumigatus CYP51A based on protein homology modeling.

    abstract::Molecular studies have shown that the majority of azole resistance in Aspergillus fumigatus is associated with amino acid substitutions in the cyp51A gene. To obtain insight into azole resistance mutations, the cyp51A gene of 130 resistant and 76 susceptible A. fumigatus isolates was sequenced. Out of 130 azole-resist...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01599-09

    authors: Snelders E,Karawajczyk A,Schaftenaar G,Verweij PE,Melchers WJ

    更新日期:2010-06-01 00:00:00

  • Candida albicans mucin Msb2 is a broad-range protectant against antimicrobial peptides.

    abstract::The human fungal pathogen Candida albicans releases a large glycofragment of the Msb2 surface protein (Msb2*) into the growth environment, which protects against the action of human antimicrobial peptides (AMPs) LL-37 and histatin-5. Quantitation of Msb2*/LL-37 interactions by microscale thermophoresis revealed high-a...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.00862-13

    authors: Swidergall M,Ernst AM,Ernst JF

    更新日期:2013-08-01 00:00:00