Browsing by Author "Andrade, S."
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- Granulomatous lesions and Mycobacterium avium subsp. paratuberculosis in portuguese wild boars (Sus scrofa)Publication . Matos, Ana Cristina; Figueira, Luís; Martins, Maria Helena; Matos, Manuela; Andrade, S.; Álvares, Sofia; Mendes, Andreia; Sousa, Nídia de; Coelho, Ana Cláudia; Pinto, Maria de LurdesGranulomatous lesions and Mycobacterium avium subsp. paratuberculosis in portuguese wild boars (Sus scrofa).
- Granulomatous lesions and Mycobacterium avium Subsp. paratuberculosis in Portuguese wild boars (Sus scrofa)Publication . Matos, Ana Cristina; Figueira, Luís; Martins, Maria Helena; Matos, Manuela; Andrade, S.; Álvares, Sofia; Mendes, Andreia; Sousa, Nídia de; Coelho, Ana Cláudia; Pinto, Maria de LurdesWild boar (Sus scrofa) is considered a vector of mycobacterial infections, but the presence of Mycobacterium avium subsp. paratuberculosis (MAP) has never been assessed in this species in Portugal.
- Granulomatous sesions and Mycobacterium avium subsp. paratuberculosis in Portuguese wild boars (Sus scrofa)Publication . Matos, Ana Cristina; Figueira, Luís; Martins, Maria Helena; Matos, Manuela; Andrade, S.; Álvares, Sofia; Mendes, Andreia; Sousa, Nídia de; Coelho, Ana Cláudia; Pinto, Maria de Lurdesranulomatous sesions and Mycobacterium avium subsp. paratuberculosis in Portuguese wild boars (Sus scrofa).
- Lymphocyte population in granulomatous lesions of wild-boars (Sus scrofa) and red deer (Cervus elaphus) suspected of tuberculosisPublication . Matos, Ana Cristina; Andrade, S.; Pires, Maria dos Anjos; Coelho, Ana Cláudia; Pinto, Maria de LurdesLymphocyte population in granulomatous lesions of wild-boars (Sus scrofa) and red deer (Cervus elaphus) suspected of tuberculosis.
- Lymphocyte population in the granulomatous lesions of wild-boars (Sus scrofa) suspected of tuberculosisPublication . Matos, Ana Cristina; Andrade, S.; Pires, Maria dos Anjos; Coelho, Ana Cláudia; Pinto, Maria de LurdesLymphocyte population in the granulomatous lesions of wild-boars (Sus scrofa) suspected of tuberculosis.
- Mesenteric lymph node granulomatous lesions in naturally infected wild boar (Sus scrofa) in Portugal--Histological, immunohistochemical and molecular aspectsPublication . Matos, Ana Cristina; Andrade, S.; Figueira, Luís; Matos, Manuela; Pires, Maria dos Anjos; Coelho, Ana Cláudia; Pinto, Maria de LurdesSeveral studies have demonstrated that wildlife reservoirs of mycobacteria are responsible for the maintenance and spreading of the infection to livestock and wildlife counterparts. Recent data report the role of wild boar (Sus scrofa) as a reservoir for Mycobacterium bovis. This study was conducted to evaluate the chronic inflammatory response in the mesenteric lymph nodes (MLN) of wild boar with granulomatous lymphadenitis (n=30). Morphological parameters of the lesions were recorded. The expression of CD3 and CD79α molecules was evaluated by immunohistochemistry. Molecular genotyping and culture to identify mycobacteria were performed. The lesions consisted mainly of stage III and stage IV granulomas. CD3 and CD79α positive cells were observed in 15 (50%) and in 11 (36.6%) MLN, respectively. In these lesions, higher percentages of T lymphocytes were found and a limited number of animals exhibited a tendency for an increased percentage of B lymphocytes. Our results suggest that there are similar percentages and distribution patterns of CD3 and CD79α in the lesions, regardless of the presence of Mycobacterium avium subsp. paratuberculosis (Map), M. bovis or Map-M. bovis co-infection, and confirm that wild boar is both susceptible and could be an important Map and M. bovis wild reservoir in the study area.