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| Allain, Thibault; Chaouch, Soraya; Thomas, Myriam; Travers, Marie-agnes; Valle, Isabelle; Langella, Philippe; Grellier, Philippe; Polack, Bruno; Florent, Isabelle; Bermudez-humaran, Luis G.. |
| Giardia duodenalis is a protozoan parasite responsible for giardiasis, a disease characterized by intestinal malabsorption, diarrhea and abdominal pain in a large number of mammal species. Giardiasis is one of the most common intestinal parasitic diseases in the world and thus a high veterinary, and public health concern. It is wellestablished that some probiotic bacteria may confer protection against this parasite in vitro and in vivo and we recently documented the implication of bile-salt hydrolase (BSH)-like activities from strain La1 of Lactobacillus johnsonii as mediators of these effects in vitro. We showed that these activities were able to generate deconjugated bile salts that were toxic to the parasite. In the present study, a wide collection of... |
| Tipo: Text |
Palavras-chave: Giardia duodenalis; Lactobacilli; Lactobacillus johnsonii; Lactobacillus gasseri; Probiotics; Bile salt hydrolases. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00424/53569/54417.pdf |
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| Coradi,ST; David,EB; Oliveira-Sequeira,TCG; Ribolla,PEM; Carvalho,TB; Guimarães,S. |
| Giardia duodenalis is a complex species that comprises at least seven distinct genetic groups (A to G), but only genotypes A and B are known to infect humans and a wide variety of other mammals. Regardless of biological, biochemical and antigenic analysis, several isolates maintained in vitro were not genetically typed yet. So, in the present study, five Brazilian axenic isolates obtained from asymptomatic and symptomatic patients were typed in order to determine the major genetic groups to which the isolates belonged. DNA was extracted from axenic trophozoites, fragments of glutamate dehydrogenase (gdh) and triosephosphate isomerase (tpi) genes were amplified by PCR and the isolate genotyping was carried out using restriction fragment length polymorphism... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Giardia duodenalis; Axenic isolates; Molecular typing; Genotype. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000300016 |
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| Volotão,Aline Cardoso Caseca; Ramos,Nathália Motta Delvaux; Fantinatti,Maria; Moraes,Marcus Vinícius Proença de; Atique Netto,Halim; Storti-Melo,Luciane Moreno; Godoy,Elenir Alves Macedo de; Rossit,Andréa Regina Baptista; Fernandes,Octávio; Machado,Ricardo Luiz Dantas. |
| OBJECTIVE: In order to evaluate the potential zoonotic transmission of Giardia duodenalis, isolates from humans and dogs in the Northwestern region of the São Paulo State, Brazil were characterized based on the β-giardin gene. METHODS: The samples were analyzed by sequencing of the Nested-PCR products. RESULTS: The A1 and A2 subgenotypes were detected in human and dogs. Cysts of assemblage B, C and D have not been found in any isolates studied. CONCLUSIONS: These results are consistent with the view that giardiasis in the largest endemic region of the Brazil should not be seen as a single entity. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Giardia duodenalis; Beta giardin gene; Genotypes; Zoonosis; Brazil. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000400014 |
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