Detalhes bibliográficos
| Ano de defesa: |
2017 |
| Autor(a) principal: |
Oliveira Junior, Manoel Carneiro de
 |
| Orientador(a): |
Vieira, Rodolfo de Paula |
| Banca de defesa: |
Vieira, Rodolfo de Paula,
Jorge, Luciana Maria Malos?? Sampaio,
Oliveira, Ana Paula Ligeiro de,
Olivo, Clarice Rosa,
Lopes, Fernanda Degobbi Ten??rio Quirino dos Santos |
| Tipo de documento: |
Tese
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Nove de Julho
|
| Programa de Pós-Graduação: |
Programa de P??s-Gradua????o em Ci??ncias da Reabilita????o
|
| Departamento: |
Sa??de
|
| País: |
Brasil
|
| Palavras-chave em Português: |
|
| Palavras-chave em Inglês: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
http://bibliotecatede.uninove.br/handle/tede/1839
|
Resumo: |
Asthma is a chronic inflammatory airway disease, in which purinergic signaling has a central role, controlling activation of structural and hematopoietic cells. Aerobic exercise (AE) present anti-inflammatory effects to the airways, but no cellular and molecular mechanisms are known. Thus, this project evaluated the effects of AE on purinergic signaling response in a model of asthma induced by house dust mite (HDM). AE was performed in a treadmill at moderate intensity, 5x/week, during 4 weeks, after 3 weeks of prior HDM administration. HDM (dermatophagoides pteronyssinus; 100mg/mouse) was administered 3x/week, during 7 weeks. The results demonstrated that AE reduced adenosine triphosphate (ATP) accumulation (p<0.001), IL-1beta, IL-4, IL-5, CXCL1/KC, IL-13, IL-17, IL-23, IL-33 and TNF-alpha (p<0.001), while increased IL-1ra, IL-2 and IL-10 in bronchoalveolar lavage (BAL). Total number of leukocytes, eosinophils, lymphocytes and neutrophils in BAL and the number of eosinophils, neutrophils and lymphocytes in the airway wall (p<0.01) were reduced by AE. Airway collagen, elastin, smooth muscle and mucus were reduced by AE (p<0.01). TGF-beta, IGF-1 and VEGF levels was reduced by AE (p<0.001). Lung mechanics (Resistance, Elastance, GTIS, HTIS, RAW) and airway hyperresponsiveness (AHR) to methacholine was ameliorated by AE (p<0.01). IL-4, IL-5 and IL-13 production by lymph nodes, splenocytes and bone marrow cells was also reduced by AE. The expression of P2X7, P2Y2 and P2Y6 by peribronchial leukocytes (p<0.01) and by airway epithelial cells (p<0.01) were reduced by AE. AE reduces asthma phenotype by inhibiting purinergic signaling in a model of HDM-induce asthma. |
