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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Influência dos hormônios sexuais femininos no remodelamento e na reatividade das vias aéreas em modelo murino de inflamação pulmonar alérgica crônica. / Influence of female sex hormones on airway remodeling and responsiveness in a murine model of lung inflammation.

Martins, Isabelli de Oliveira 10 October 2013 (has links)
A asma traz remodelamento das vias aéreas por deposição de colágeno, hiperplasia mucoide, hipertrofia celular lisa e hipertrofia epitelial além de afetar a reatividade das vias aéreas. Camundongos C57Bl/6 ovariectomizadas (OVx) foram sensibilizadas e desafiadas com OVA por inalação 3 vezes por semana durante 3 ou 7 semanas. Passadas 120h pós desafio avaliou-se: reatividade traqueal, histologia, MMPs 2 e 9 e mecânica pulmonar. O grupo OVx alérgico teve a reatividade traqueal à MCh e a quantificação de muco, colágeno e músculo liso reduzida em comparação ao grupo controle (sham OVx). O tratamento com estrógeno aumentou MMP2 e o tratamento com progesterona aumentou MMP9. A mecânica ventilatória não diferiu entre os grupos. Nossos dados sugerem que o remodelamento brônquico pode ser modulado por HSFs. / Asthma is characterized by remodeling and increased airway responsiveness. Remodeling is recognized by sub-epithelial fibrosis, bronchial glands hypertrophy and goblet cell hyperplasia. We investigated role of HSF in airway remodeling and in tracheal responsiveness in a model of chronic lung inflammation. Mice were ovariectomized (OVx), sensitized and OVA challenged. Elapsed 120h of the last challenge, histological assessment and contractile response of trachea to methacholine (MCh) was performed. Total lung resistance (R) and elastance (E) were measured under mechanical ventilation. Control group consisted of Sham OVx allergic mice. Airway remodeling were significantly lower of OVx mice compared with Sham OVx allergic counterparts. OVx allergic mice showed lower tracheal responsiveness than Sham OVx. R and E were the same between groups.
2

Influência dos hormônios sexuais femininos no remodelamento e na reatividade das vias aéreas em modelo murino de inflamação pulmonar alérgica crônica. / Influence of female sex hormones on airway remodeling and responsiveness in a murine model of lung inflammation.

Isabelli de Oliveira Martins 10 October 2013 (has links)
A asma traz remodelamento das vias aéreas por deposição de colágeno, hiperplasia mucoide, hipertrofia celular lisa e hipertrofia epitelial além de afetar a reatividade das vias aéreas. Camundongos C57Bl/6 ovariectomizadas (OVx) foram sensibilizadas e desafiadas com OVA por inalação 3 vezes por semana durante 3 ou 7 semanas. Passadas 120h pós desafio avaliou-se: reatividade traqueal, histologia, MMPs 2 e 9 e mecânica pulmonar. O grupo OVx alérgico teve a reatividade traqueal à MCh e a quantificação de muco, colágeno e músculo liso reduzida em comparação ao grupo controle (sham OVx). O tratamento com estrógeno aumentou MMP2 e o tratamento com progesterona aumentou MMP9. A mecânica ventilatória não diferiu entre os grupos. Nossos dados sugerem que o remodelamento brônquico pode ser modulado por HSFs. / Asthma is characterized by remodeling and increased airway responsiveness. Remodeling is recognized by sub-epithelial fibrosis, bronchial glands hypertrophy and goblet cell hyperplasia. We investigated role of HSF in airway remodeling and in tracheal responsiveness in a model of chronic lung inflammation. Mice were ovariectomized (OVx), sensitized and OVA challenged. Elapsed 120h of the last challenge, histological assessment and contractile response of trachea to methacholine (MCh) was performed. Total lung resistance (R) and elastance (E) were measured under mechanical ventilation. Control group consisted of Sham OVx allergic mice. Airway remodeling were significantly lower of OVx mice compared with Sham OVx allergic counterparts. OVx allergic mice showed lower tracheal responsiveness than Sham OVx. R and E were the same between groups.

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