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Mostrando ítems 1-20 de 32

    • A phenotypic characterization of two isolates of a multidrug-resistant outbreak strain of mycobacterium tuberculosis with opposite epidemiological fitness 

      Bei, Jinlong; Bigi, María Mercedes; Lima, Analía; Zhang, Qi; Blanco, Federico Carlos; López, Beatriz; Yu, Ting; Wang, Zhilin; Dai, Zhangyan; Chen, Zhuang; Cataldi, Angel Adrian; Sasiain, María del Carmen; Ritacco, Viviana; De la Barrera, Silvia Susana; Soria, Marcelo Abel; Durán, Rosario; Bigi, Fabiana (Hindawi, 2020-04)
      Tuberculosis (TB) is an infectious disease, caused by Mycobacterium tuberculosis, primarily affecting the lungs. The M. tuberculosis strain of the Haarlem family named M was responsible for a large multidrug-resistant TB ...

    • An inhibitory mechanism of action of coiled‐coil peptides against type three secretion system from enteropathogenic Escherichia coli 

      Larzabal, Mariano; Baldoni, Hector A.; Suvire, Fernando D.; Curto, Lucrecia M.; Gomez, Gabriela E.; Marques Da Silva, Wanderson; Giudicessi, Silvana L.; Camperi, Silvia A.; Delfino, Jose M.; Cataldi, Angel Adrian; Enriz, Daniel (Wiley, 2019-03)
      Human pathogenic gram‐negative bacteria, such as enteropathogenic Escherichia coli (EPEC), rely on type III secretion systems (T3SS) to translocate virulence factors directly into host cells. The coiled‐coil domains present ...

    • Analysing nonsynonymous mutations between two Mycobacterium bovis strains with contrasting pathogenic profiles 

      Bigi, María Mercedes; Vazquez, Cristina Lourdes; Castelão, Ana Beatriz C.; Garcia, Elizabeth Andrea; Cataldi, Angel Adrian; Jackson, Mary; McNeil, Michael; Soria, Marcelo Abel; Zumarraga, Martin Jose; Cabruja, Matias; Gago, Gabriela; Blanco, Federico Carlos; Nishibe, Christiane; Almeida Junior, Nalvo Franco de; Araujo, Flabio Ribeiro de; Bigi, Fabiana (Elsevier, 2019-12)
      Mycobacterium bovis (M. bovis) is the causative agent of bovine tuberculosis, a chronic infectious disease that can affect cattle, other domesticated species, wild animals and humans. This disease produces important economic ...

    • BoLA-DRB3 exon2 polymorphisms among tuberculous cattle: Nucleotide and functional variability and their association with bovine tuberculosis pathology 

      Eirin, Maria Emilia; Carignano, Hugo Adrian; Shimizu, Ernesto; Pando, Maria de los Angeles; Zumarraga, Martin Jose; Magnano, Gabriel; Macías, Analía; Garbaccio, Sergio Gabriel; Huertas, Pablo Sebastian; Morsella, Claudia Graciela; Ferrara Muñiz, Ximena; Cataldi, Angel Adrian; Paolicchi, Fernando; Poli, Mario Andres (Elsevier, 2020-06)
      Bovine tuberculosis (bTB) is caused by Mycobacterium bovis and disseminated worldwide. In Argentina, the highest prevalence occurs in dairy areas. BoLA DRB3.2 is related to the adaptive immunity in mycobacterial infections. ...

    • Bovine tuberculosis in domestic pigs: Genotyping and distribution of isolates in Argentina 

      Barandiaran, Soledad; Martinez Vivot, Marcela; Pérez, Andrés M.; Cataldi, Angel Adrian; Zumarraga, Martin Jose (Elsevier, 2015-12)
      Bovine tuberculosis is caused by Mycobacterium bovis and affects primarily cattle, among many other mammal species. In this study, 250 isolates of M. bovis collected from pigs slaughtered in Argentina were typed by ...

    • Characterization of Cellulolytic Activities of Environmental Bacterial Consortia from an Argentinian Native Forest 

      Romano, Nelson Gaston; Gioffre, Andrea; Sede, Silvana Mabel; Campos, Eleonora; Cataldi, Angel Adrian; Talia, Paola Mónica (Springer, 2013-08)
      Cellulolytic activities of three bacterial consortia derived from a forest soil sample from Chaco region, Argentina, were characterized. The phylogenetic analysis of consortia revealed two main highly supported groups ...

    • Clade 8 and clade 6 strains of Escherichia coli O157:H7 from cattle in Argentina have Hypervirulent-Like phenotypes 

      Amigo, Natalia; Mercado, Elsa Cristina; Bentancor, Adriana Beatriz; Singh, Pallavi; Vilte, Daniel Alejandro; Gerhardt, Elizabeth; Zotta, Elsa; Ibarra, Cristina Adriana; Manning, Shannon D.; Larzabal, Mariano; Cataldi, Angel Adrian (PLOS, 2015-06-01)
      The hemolytic uremic syndrome (HUS) whose main causative agent is enterohemorrhagic Escherichia coli (EHEC) O157:H7 is a disease that mainly affects children under 5 years of age. Argentina is the country with the highest ...

    • Detection of Mycobacterium bovis–infected dairy herds using PCR in bulk tank milk samples 

      Zumarraga, Martin Jose; Soutullo, Adriana; Garcia, Maria Ines; Marini, M. Rocío; Abdala, Alejandro Ariel; Tarabla, Hector Dante; Echaide, Susana T. de; Lopez, Marcela; Zervini, Elsa; Canal, Ana María; Cataldi, Angel Adrian (Mary Ann Liebert Inc., 2012-02)
      Bovine tuberculosis (bTB) is a chronic and zoonotic disease due to Mycobacterium bovis. The tuberculosis eradication campaign carried out in Argentina has considerably improved the health situation of the herds. Here we ...

    • Draft genome sequence of Mycobacterium bovis 04-303, a highly virulent strain from Argentina 

      Nishibe, Christiane; Canevari Castelão, Ana Beatriz; Dalla Costa, Ricardo; Pinto, Beatriz Jeronimo; Varuzza, Leonardo; Cataldi, Angel Adrian; Bernardelli, Amelia; Bigi, Fabiana; Blanco, Federico Carlos; Zumarraga, Martin Jose; Almeida, Nalvo Franco; Araujo, Flabio Ribeiro de (American Society for Microbiology, 2013-11)
      Mycobacterium bovis strain 04-303 was isolated from a wild boar living in a free-ranging field in Argentina. This work reports the draft genome sequence of this highly virulent strain and the genomic comparison of its major ...

    • Early immune innate hallmarks and microbiome changes across the gut during Escherichia coli O157: H7 infection in cattle 

      Larzabal, Mariano; Marques Da Silva, Wanderson; Multani, Anmol; Vagnoni, Lucas Emilio; Moore, Prando Dadin; Marin, Maia Solange; Riviere, Nahuel Agustin; Delgado, Fernando Oscar; Vilte, Daniel Alejandro; Romero Victorica, Matias; Tao, Ma; Luo, Le Guan; Talia, Paola Mónica; Cataldi, Angel Adrian; Cobo, Eduardo Rubén (SpringerNature, 2020-12)
      The zoonotic enterohemorrhagic Escherichia coli (EHEC) O157: H7 bacterium causes diarrhea, hemorrhagic colitis, and hemolytic uremic syndrome (HUS) in humans. Cattle are primary reservoirs and EHEC O157: H7; the bacteria ...

    • Enterohemorrhagic Escherichia coli O157:H7 antigens produced in transgenic lettuce effective as an oral vaccine in mice 

      Su, Yun‑Lin; Larzabal, Mariano; Song, Huan; Cheng, Tianfang; Wang, Yufang; Smith, Libia Yael; Cataldi, Angel Adrian; Ow, David W. (Springer, 2023-10)
      Enterohemorrhagic Escherichia coli (EHEC) O157:H7 is a food-borne pathogen where ruminant farm animals, mainly bovine, serve as reservoirs. Bovine vaccination has been used to prevent disease outbreaks, and the current ...

    • Fitness of drug resistant Mycobacterium tuberculosis and the impact on the transmission among household contacts 

      Morcillo, Nora; Imperiale, Belen Rocio; Di Giulio, Angela Beatríz; Zumarraga, Martin Jose; Takif, Howard; Cataldi, Angel Adrian (Elsevier, 2014-12)
      There has been an on-going debate on whether the development of drug resistance in Mycobacterium tuberculosis reduces its relative fitness and its ability to cause disease. The aim of this study was to explore this ...

    • La genómica de las micobacterias 

      Viale, Mariana; Zumarraga, Martin Jose; Araujo, Flabio Ribeiro de; Zarraga, Ana Maria; Cataldi, Angel Adrian; Romano, Maria Isabel; Bigi, Fabiana (Office International des Epizooties, 2016)
      Las especies Mycobacterium bovis y Mycobacterium avium subsp. paratuberculosis son los agentes causales de la tuberculosis y la paratuberculosis en animales, respectivamente. Además, ambas micobacterias, pero fundamentalmente ...

    • Identification and evaluation of new Mycobacterium bovis antigens in the in vitro interferon gamma release assay for bovine tuberculosis diagnosis 

      Eirin, Maria Emilia; Macías, Analía; Magnano, Gabriel; Morsella, Claudia Graciela; Mendez, Laura Luján; Blanco, Federico Carlos; Bianco, María Veronica; Severina, Walter; Alito, Alicia Elsa; Pando, Maria de los Angeles; Singh, Mahavir G.; Spallek, Ralph; Paolicchi, Fernando; Bigi, Fabiana; Cataldi, Angel Adrian (Elsevier, 2015-12)
      Bovine tuberculosis (bTB) is a common zoonotic disease, caused by Mycobacterium bovis (M. bovis), responsible for significant economic losses worldwide. Its diagnosis is based on the detection of cell mediated immunity ...

    • Immunohistochemical detection of pro-inflammatory and anti-inflammatory cytokines in granulomas in cattle with natural Mycobacterium bovis infection 

      Canal, Ana María; Pezzone, Natalia; Cataldi, Angel Adrian; Zumarraga, Martin Jose; Larzabal, Mariano; Garbaccio, Sergio Gabriel; Fernández, Analía; Dominguez, Lucas; Aranaz, Alicia; Rodriguez-Bertos, Antonio (2017)
      Cellular immune response was evaluated in lymph nodes and lung with different granulomatous lesions from cattle naturally infected with Mycobacterium bovis. For this purpose, we assessed pro-inflammatory and anti-inflamm ...

    • In vitro anti-tuberculosis activity of azole drugs against Mycobacterium tuberculosis clinical isolates 

      Imperiale, Belen Rocio; Cataldi, Angel Adrian; Morcillo, Nora (2017-12)
      Background: Latent tuberculosis has been associated with the persistence of dormant Mycobacterium tuberculosis in the organism of infected individuals, who are reservoirs of the bacilli and the source for spreading the ...

    • Mycobacterium bovis Dmce2 double deletion mutant protects cattle against challenge with virulent M. bovis 

      Blanco, Federico Carlos; Bianco, María Veronica; Garbaccio, Sergio Gabriel; Meikle, Virginia; Gravisaco, María José; Montenegro, Valeria Noely; Alfonseca, Edgar; Singh, Mahavir G.; Barandiaran, Soledad; Canal, Ana María; Vagnoni, Lucas Emilio; Buddle, Bryce Malcom; Bigi, Fabiana; Cataldi, Angel Adrian (Elsevier, 2013-05)
      A Mycobacterium bovis strain deleted in mce2A and mce2B genes (M. bovis Δmce2) was tested as an experimental vaccine in cattle challenged with a virulent M. bovis strain. Three-and-a-half-month old calves (n = 5 to 6 per ...

    • Mycobacterium bovis ESAT-6, CFP-10 and EspC antigens show high conservation among field isolates 

      Encinas, Micaela; Marfil, Maria Jimena; Garbaccio, Sergio Gabriel; Barandiaran, Soledad; Huertas, Pablo Sebastian; Morsella, Claudia Graciela; Macias, Analía; Magnano, Gabriel; Zapata, L.; Bigi, Fabiana; Cataldi, Angel Adrian; Paolicchi, Fernando; Zumarraga, Martin Jose; Eirin, Maria Emilia (Elsevier, 2018-07)
      ESAT-6, CFP-10 and EspC are virulence factors that have been extensively assayed for bovine and human tuberculosis diagnosis due their potent T-cell inducing activities. While polymorphisms of ESAT-6 and CFP-10 were analyzed, ...

    • Novel Effector Protein EspY3 of Type III Secretion System from Enterohemorrhagic Escherichia coli Is Localized in Actin Pedestals 

      Larzabal, Mariano; Marques Da Silva, Wanderson; Riviere, Nahuel Agustín; Cataldi, Angel Adrian (MDPI AG, 2018)
      Enterohemorrhagic Escherichia coli (EHEC) and enteropathogenic Escherichia coli (EPEC) are attaching and effacing (A/E) pathogens, which translocate effector proteins to intestinal enterocytes through a type III secretion ...

    • Overexpressed proteins in hypervirulent clade 8 and clade 6 strains of Escherichia coli O157:H7 compared to E. coli O157:H7 EDL933 clade 3 strain 

      Amigo, Natalia; Qi, Zhang; Amadio, Ariel; Qunjie, Zhang; Marques da Silva, Wanderson; Baiyuan, Cui; Zhongjian, Chen; Larzabal, Mariano; Cataldi, Angel Adrian; Jinlong, Bei (2016)
      Escherichia coli O157:H7 is responsible for severe diarrhea and hemolytic uremic syndrome (HUS), and predominantly affects children under 5 years. The major virulence traits are Shiga toxins, necessary to develop HUS and ...