FRANCINE MARIA DE ALMEIDA
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/20 - Laboratório de Terapêutica Experimental, Hospital das Clínicas, Faculdade de Medicina
LIM/20 - Laboratório de Terapêutica Experimental, Hospital das Clínicas, Faculdade de Medicina
5 resultados
Resultados de Busca
Agora exibindo 1 - 5 de 5
- Basiliximab Does Not Impair Airway Mucociliary Clearance of Rats(2022) CORREIA, Aristides Tadeu; ALMEIDA, Francine Maria de; AUGUSTO-COTTET, Marcia Cristina; NOLASCO, Patricia; BENTO, Afonso Silva Alves; HIRANO, Hugo Kenji Matsushima; SOUZA, Maria Cecilia Ribeiro de; SANTOS, Elizabete Silva dos; CASTRO, Julia Helena Rodrigues de; MATSUDA, Monique; PEGO-FERNANDES, Paulo Manuel; PAZETTI, RogerioPrevious studies have shown that immunosuppressive drugs impair the airway mucociliary clearance of rats. However, considering the high specificity of basiliximab (BSX) and the absence of studies reporting its side effects, our aim was to investigate whether BSX, associated or not with triple therapy, impairs the mucociliary system. Forty rats were divided into 4 groups: Control, BSX, Triple, and BSX + Triple. After 15 days of treatment, animals were euthanized and the ciliary beating frequency (CBF), mucociliary transport velocity (MCTV), neutral and acid mucin production, Muc5ac and Muc5b gene expression, inflammatory cell number, and interleukin (IL)-6 concentration were analyzed. CBF and MCTV were lower in Triple and BSX + Triple groups (p < 0.05). Neutral mucin percentage was higher in Triple group (p < 0.05), and acid mucin percentage was higher in Triple and BSX + Triple groups (p < 0.05). The Muc5ac and Muc5b gene expression was higher in Triple and BSX + Triple groups (p < 0.05). Animals from Triple and BSX + Triple groups presented fewer mononuclear cells (p < 0.05). The number of polymorphonuclear cells was higher in the Triple group (p < 0.05). In the analysis of inflammatory cells in the blood, there was a decrease in lymphocytes and an increase in neutrophils in the Triple and BSX + Triple groups (p < 0.05). The concentration of IL-6 significantly increased in the animals of the Triple and BSX + Triple groups (p < 0.05). BSX did not change the mucociliary apparatus of rats.
- Effects of anti-IL 17 on inflammation in Asthma, COPD and Asthma-COPD models(2022) ALMEIDA, F. M.; CAMARGO, L. N.; MARTINS, N.; LOURENCO, J. D.; BEZERRA, S. K. M.; SARAIVA-ROMANHOLO, B.; LEICK, E. A.; LOPES, F. D. Q. S.; PRADO, C. M.; RIGHETTI, R. F.; TIBERIO, I. F. L. C.
conferenceObject Therapeutic Effect of Melatonin on Pulmonary Inflammatory Response in Experimental Models of Asthma, COPD and Asthma-COPD Overlap(2022) SCHEFFER, V.; RIBEIRO, C.; CAMARGO, L.; FUKUZAKI, S.; RIGHETTI, R.; BEZERRA, S.; SARAIVA-ROMANHOLO, B.; ALMEIDA, F.; TIBERIO, I.; LEICK, E.conferenceObject Anti-IL-17 Treatment Modulates Pulmonary Responses in Model of Asthma-COPD Overlap(2022) CAMARGO, L.; SANTOS, T.; FUKUZAKI, S.; MARTINS, N.; ALMEIDA, F.; LOURENCO, J.; BEZERRA, S.; SARAIVA-ROMANHOLO, B.; PRADO, C.; LOPES, F.; LEICK, E.; RIGHETTI, R.; TIBERIO, I.- Exposure to Sodium Hypochlorite or Cigarette Smoke Induces Lung Injury and Mechanical Impairment in Wistar Rats(2022) SARAIVA-ROMANHOLO, Beatriz Mangueira; GENARO, Isabella Santos de; ALMEIDA, Francine Maria de; FELIX, Soraia Nogueira; LOPES, Marina Ribeiro Cottes; AMORIM, Thais Santos; VIEIRA, Rodolfo Paula; ARANTES-COSTA, Fernanda Magalhaes; MARTINS, Milton Arruda; TIBERIO, Iolanda de Fatima Lopes Calvo; PRADO, Carla MaximoPulmonary irritants, such as cigarette smoke (CS) and sodium hypochlorite (NaClO), are associated to pulmonary diseases in cleaning workers. We examined whether their association affects lung mechanics and inflammation in Wistar rats. Exposure to these irritants alone induced alterations in the lung mechanics, inflammation, and remodeling. The CS increased airway cell infiltration, acid mucus production, MMP-12 expression, and alveolar enlargement. NaClO increased the number of eosinophils and macrophages in the bronchoalveolar lavage fluid, with cells expressing IL-13, MMP-12, MMP-9, TIMP-1, and iNOS in addition to increased IL-1 beta and TNF-alpha levels. Co-exposure to both irritants increased epithelial and smooth muscle cell area, acid mucus production, and IL-13 expression in the airways, while it reduced the lung inflammation. In conclusion, the co-exposure of CS with NaClO reduced the pulmonary inflammation, but increased the acidity of mucus, which may protect lungs from more injury. A cross-resistance in people exposed to multiple lung irritants should also be considered.