Development of a Set of Multiplex Pcr Assays for the Detection of Genes Encoding Important B-Lactamases...

Development of a set of multiple PCR assays for the detection of genes convert beta b-lactamases in family Enterobacteriaceae Caroline Dallenne1, Anaelle Da Costa1, Dominique Decre´ 1,2, Christine Favier3 and Guillaume Arlet1,4* 1Universite´ capital of S fall outh Dakota et Marie Curie genus Paris 6, Faculte´ de Me´decine Pierre et Marie Curie, De´partement de Bacte´riologie, Paris, France; 2Assistance-Publique, Hoˆpitaux de Paris, Hoˆ pital Saint-Antoine, process de Microbiologie, Paris, France; 3Bio-Rad laboratories Inc., Marnes-la-Coquette, France; 4Assistance-Publique, Hoˆpitaux de Paris, Hoˆ pital Tenon, Service de Bacte´riologie, Paris, France *Corresponding author. Service de Bacte´ riologie, Hoˆ pital Tenon, 4 atone de la Chine, 75970 Paris cedex 20, France. Tel: þ33-1-56-01-70-18; Fax: þ33-1-56-01-61-08; electronic mail: guillaume.arlet@tnn.aphp.fr Received 17 August 2009; returned 29 September 2009; rewrite 29 November 2009; real 19 December 2 009 Objectives: To develop a rapid and unquestionable tool to detect by multiplex PCR assays the most oftentimes widespread b-lactamase genes encoding the OXA-1-like broad-spectrum b-lactamases, extended-spectrum b-lactamases (ESBLs), plasmid-mediated AmpC b-lactamases and class A, B and D carbapenemases.

Methods: Following the bod of a specific host of primers and optimization employ potency strains, a set of six multiplex PCRs and one simplex PCR was created. An valuation of the set was performed using a collection of 31 Enterobacteriaceae strains isolated from clinical specimens showing a resistance phenotype towards broadspectrum cephalosporins and/or cephamycins and/or c arbapenems. flat sequencing from PCR produc! ts was subsequently carried out to identify b-lactamase genes. Results: chthonic optimized conditions, all supportive controls confirmed the specificity of group-specific PCR primers. Except for the detection of carbapenemase genes, multiplex and simplex PCR assays were carried out using the same PCR conditions, allowing...If you want to queer a dependable essay, order it on our website: OrderEssay.net

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