Cigarette smoking, the major cause of chronic obstructive pulmonary disease (COPD), induces activation of pro-inflammatory pathways in the airway epithelium. Salbutamol, a selective and short-acting β2-adrenoceptor agonist, is used for bronchospasm relief in patients with asthma and COPD. In addition, salbutamol also present anti-inflammatory effects. Here, we evaluated whether salbutamol (10-5-10- 7 M) can reduce on bronchial epithelial cells (BEAS-2B cells) the inflammatory parameters induced by cigarette smoke extract (CSE; 1%). After 24h, Salbutamol reduced the IL-1β production induced by CSE in a concentration-response manner. Salbutamol (10-6 M) reduced the IL-8 production and increased the IL-10 production on CSE-stimulated cells. In addition, salbutamol (10-6 M) decreased the ICAM-1 expression and the reactive oxygen species production. These anti-inflammatory effects could be associated with the down regulation of activation of NF-κB. Salbutamol may be a potential alternative treatment to airway inflammation caused by cigarette smoking such as in COPD patients.
Objetivo: verificar a incidência de micro-organismos potencialmente patogênicos isolados antes e após os métodos de processamento dos circuitos respiratórios (CR) dos ventiladores mecânicos e analisar os resultados das hemoculturas dos pacientes traqueostomizados durante o período do estudo. Metodologia: estudo experimental e documental realizado com amostras obtidas dos CR e análises dos prontuários dos pacientes submetidos à ventilação mecânica. As coletas nos circuitos foram divididas em três fases: (1) antes da solução enzimática; (2) após da solução enzimática; e (3) após óxido de etileno. Resultados: Foi detectada a presença de bactérias nas diferentes etapas do estudo, sendo caracterizados como Staphylococcus aureus, Staphylococcus sp. coagulase negativa, Pseudomonas aeruginosa, Enterobacter cloacae, e Enterococcus. Conclusão: foi possível evidenciar a presença de contaminação bacteriana, nas diferentes etapas do estudo e também a presença desses agentes nos exames de hemocultura
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