| Registro completo |
| Provedor de dados: |
BJID
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| País: |
Brazil
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| Título: |
The effects of nitric oxide on the immune response during giardiasis
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| Autores: |
Pavanelli,Wander Rogério
Gutierrez,Fredy Roberto Salazar
Silva,Jean Jerley Nogueira da
Costa,Ivete Conchon
Menezes,Maria Claudia Noronha Dutra de
Oliveira,Francisco José de Abreu
Itano,Eiko Nakagawa
Watanabe,Maria Angélica Ehara
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| Data: |
2010-12-01
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| Ano: |
2010
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| Palavras-chave: |
Nitric oxide
Immune system
Giardiasis
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| Resumo: |
Nitric oxide (NO) is a free radical synthesized from L-arginine by different isoforms NO-synthases. NO possesses multiple and complex biological functions. NO is an important mediator of homeostasis, and changes in its generation or actions can contribute or not to pathological states. The knowledge of effects of NO has been not only important to our understanding of immune response, but also to new tools for research and treatment of various diseases. Knowing the importance of NO as inflammatory mediator in diverse infectious diseases, we decided to develop a revision that shows the participation/effect of this mediator in immune response induced against Giardia spp. Several studies already demonstrated the participation of NO with microbicidal and microbiostatic activity in giardiasis. On the other hand, some works report that Giardia spp. inhibit NO production by consuming the intermediate metabolite arginine. In fact, studies in vitro showed that G. lamblia infection of human intestinal epithelial cells had reduced NO production. This occurs due to limited offer of the crucial substrate arginine (essential aminoacid for NO production), consequently reducing NO production. Therefore, the balance between giardial arginine consumption and epithelial NO production could contribute to the variability of the duration and severity of infections by this ubiquitous parasite.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000600010
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| Editor: |
Brazilian Society of Infectious Diseases
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| Relação: |
10.1590/S1413-86702010000600010
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Infectious Diseases v.14 n.6 2010
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| Direitos: |
info:eu-repo/semantics/openAccess
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