نتایج جستجو برای: disk diffusion test

تعداد نتایج: 1012936  

Journal: :Antimicrobial agents and chemotherapy 2007
John Turnidge Gerry Bordash

Quality control (QC) ranges for antimicrobial agents against QC strains for both dilution and disk diffusion testing are currently set by the Clinical and Laboratory Standards Institute (CLSI), using data gathered in predefined structured multilaboratory studies, so-called tier 2 studies. The ranges are finally selected by the relevant CLSI subcommittee, based largely on visual inspection and a...

2017
Adriano Martison Ferreira Katheryne Benini Martins Vanessa Rocha da Silva Alessandro Lia Mondelli Maria de Lourdes Ribeiro de Souza da Cunha

Staphylococcus aureus and Staphylococcus saprophyticus are the most common and most important staphylococcal species associated with urinary tract infections. The objective of the present study was to compare and to evaluate the accuracy of four phenotypic methods for the detection of beta-lactamase production in Staphylococcus spp. Seventy-three strains produced a halo with a diameter ≤28mm (p...

Journal: :JPMA. The Journal of the Pakistan Medical Association 2010
Naima Fasih Seema Irfan Afia Zafar Erum Khan Rumina Hasan

OBJECTIVE To assess the frequency of phenotypic expression of inducible resistance of clindamycin due to expression of erm genes, in clinical isolates of Staphylococcus aureus (S. aureus), by double disk diffusion test (D-test). METHOD This was a cross sectional study conducted in the clinical laboratory of Aga Khan University Hospital, Karachi. A total of 2432, non duplicate clinical isolate...

Journal: :Biomedical journal 2014
Arunava Kali Selvaraj Stephen Sivaraman Umadevi

Although conventional antibiotic susceptibility tests are most commonly performed for methicillin-resistant Staphylococcus aureus (MRSA), the results of these phenotypic tests are dependent on the standardization of the culture conditions. The aim of the study was to evaluate the conventional phenotypic screening tests in comparison to the mecA gene polymerase chain reaction (PCR). One hundred ...

Journal: :Indian journal of medical microbiology 2009
K B Anand P Agrawal S Kumar K Kapila

UNLABELLED Cefoxitin is a potent inducer of the mecA regulatory system. It is being recommended for detection of methicillin resistance in Staphylococcus aureus (MRSA) when using disk diffusion testing. The aim of our study was to evaluate the efficacy of cefoxitin disc diffusion test to characterize MRSA and compare it with oxacillin agar screening and detection of mecA gene by PCR. MATERIAL...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه ملی مهندسی ژنتیک وزیست فناوری 1393

دفنسین ها می توانند بعنوان عوامل ضد قارچی در کنترل قارچ های بیماریزای گیاهی مورد استفاده قرار گیرند. بدین منظور cdna ژن دفنسین گیاه شنبلیله بعد از تایید، در ناقل همسانه سازی pjet1.2 زیرهمسانه سازی شد. پس از تأیید همسانه سازی این ژن، از سازه نوترکیبpjetsh1 خارج و در ناقل بیانی پروکاریوتی pet26 b(+) همسانه سازی و تأیید شد. پس از انتقال سازه نوترکیب جدید به نام petsh1 به میزبان بیانی e. coli bl21(...

Journal: :Journal of clinical microbiology 1999
M Cavassini A Wenger K Jaton D S Blanc J Bille

The MRSA-Screen test (Denka Seiken Co., Ltd., Tokyo, Japan), consisting of a slide latex agglutination kit that detects PBP 2a with a monoclonal antibody, was blindly compared to the oxacillin disk diffusion test, the oxacillin-salt agar screen, and PCR of the mecA gene for the detection of methicillin resistance in Staphylococcus aureus. A total of 120 methicillin-susceptible S. aureus (MSSA) ...

Journal: :medical laboratory journal 0
abdollah ardebili department of microbiology malihe talebi department of microbiology abdolaziz rastegar lari department of microbiology

abstract       background and objective: due to the continuous increase of multidrug-resistant acinetobacter baumannii strains around the world, decision making for an effective treatment of infections caused by this organism depends on the results of antimicrobial susceptibility tests. in this study, the validity of disk diffusion and e-test methods was assessed by their comparison with the re...

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