Listar por tema "DNA, Bacterial/genetics"

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  • Isolation and molecular identification of potentially pathogenic Escherichia coli and Campylobacter jejuni in feral pigeons from an urban area in the city of Lima, Peru 
    Caballero, Moises; Rivera, Isabel; Jara Salazar, Luis Miguel; Ulloa-Stanojlovic, Francisco M.; Shiva Ramayoni, Carlos Martin (Instituto de Medicina Tropical de São Paulo, 2015)
    Feral pigeons (Columbia livia) live in close contact with humans and other animals. They can transmit potentially pathogenic and zoonotic agents. The objective of this study was to isolate and detect strains of diarrheagenic ...
  • Molecular and Phenotypic Characterization of Diarrheagenic Escherichia coli Strains Isolated from Bacteremic Children 
    Riveros Ramirez, Maribel Denise; García, Wilfredo; García Apac, Coralith Marlinda; Durand Vara, David Percy; Mercado, Erik; Ruiz, Joaquim; Ochoa Woodell, Theresa Jean (American Society of Tropical Medicine and Hygiene, 2017)
    Escherichia coli is an important cause of Gram-negative bacteremia. The aim of this study was to characterize at the molecular and phenotypic levels E. coli strains belonging to different diarrheagenic pathotypes [diarrheagenic ...
  • Pathogenicity Island O-122 in enteropathogenic Escherichia coli strains is associated with diarrhea severity in children from Lima Peru 
    Mercado, Erik-H.; Piscoche, Cristian; Contreras, Carmen; Durand Vara, David Percy; Riveros Ramirez, Maribel Denise; Ruiz, Joaquim; Ochoa Woodell, Theresa Jean (Elsevier, 2016)
    EPEC is an attaching and effacing diarrheal pathogen that carries a large pathogenicity island, locus for enterocyte effacement (LEE). Recently, the pathogenicity island PAI O-122 was described among non-LEE effectors and ...
  • Recombination in pe/ppe genes contributes to genetic variation in Mycobacterium tuberculosis lineages 
    Phelan, Jody-E.; Coll, Francesc; Bergval, Indra; Anthony, Richard-M.; Warren, Rob; Sampson, Samantha-L.; Gey-van-Pittius, Nicolaas-C.; Glynn, Judith-R.; Crampin, Amelia-C.; Alves, Adriana; Bessa, Theolis-Barbosa; Campino, Susana; Dheda, Keertan; Grandjean, Louis; Hasan, Rumina; Hasan, Zahra; Miranda, Anabela; Moore, David Alexander James; Panaiotov, Stefan; Perdigao, Joao; Portugal, Isabel; Sheen Cortavarria, Patricia; de-Oliveira-Sousa, Erivelton; Streicher, Elizabeth-M.; van-Helden, Paul-D.; Viveiros, Miguel; Hibberd, Martin-L.; Pain, Arnab; McNerney, Ruth; Clark, Taane-G. (BioMed Central, 2016)
    BACKGROUND: Approximately 10% of the Mycobacterium tuberculosis genome is made up of two families of genes that are poorly characterized due to their high GC content and highly repetitive nature. The PE and PPE families ...
  • Standardization of a TaqMan-based real-time PCR for the detection of Mycobacterium tuberculosis-complex in human sputum 
    Barletta, Francesca; Vandelannoote, Koen; Collantes, Jimena; Evans, Carlton Anthony William; Arévalo Zelada, Jorge Luis; Rigouts, Leen (American Society of Tropical Medicine and Hygiene, 2014)
    Real-time polymerase chain reaction (qPCR) was optimized for detecting Mycobacterium tuberculosis in sputum. Sputum was collected from patients (N = 112) with suspected pulmonary tuberculosis, tested by smear microscopy, ...
  • Xpert MTB/RIF Assay Shows Faster Clearance of Mycobacterium tuberculosis DNA with Higher Levels of Rifapentine Exposure 
    Jayakumar, A.; Savic, R. M.; Everett, C. K.; Benator, D.; Alland, D.; Heilig, C. M.; Weiner, M.; Friedrich, S. O.; Martinson, N. A.; Kerrigan, A.; Zamudio Fuertes, Carlos Eduardo; Goldberg, S. V.; Whitworth, W. C.; Davis, J. L.; Nahid, P. (American Society for Microbiology, 2016)
    The Xpert MTB/RIF assay is both sensitive and specific as a diagnostic test. Xpert also reports quantitative output in cycle threshold (CT) values, which may provide a dynamic measure of sputum bacillary burden when used ...

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