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Master's Dissertation
DOI
https://doi.org/10.11606/D.42.2010.tde-06082010-135707
Document
Author
Full name
Clariana Rodrigues Soares
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2010
Supervisor
Committee
Lima, Wothan Tavares de (President)
Fortes, Zuleica Bruno
Maldonado, Edna Aparecida Leick
Title in Portuguese
Influência dos hormônios sexuais femininos sobre a inflamação alérgica pulmonar em modelo murino de asma crônica.
Keywords in Portuguese
Asma
Camundongos
Estrógenos
Inflamação
Progesterona
Pulmão
Abstract in Portuguese
Avaliamos a influência dos hormônios sexuais sobre a inflamação alérgica pulmonar em modelo experimental de asma crônica. Grupos: Basal, animais não manipulados; OVx (ovariectomizados) e Sham-OVx/alérgico (falsamente operados), sensibilizados 7 dias após a ovariectomia e desafiados com OVA a partir do 21º dia; OVx+P/alérgico, tratados com progesterona antes da sensibilização ou OVx+E/alérgico tratados com estradiol antes da sensibilização e dos desafios, seguindo o protocolo dos animais OVx. Nossos resultados mostraram que a ovariectomia reduz a migração celular para o pulmão no grupo OVx em relação ao grupo Sham-OVx/alérgico. O tratamento com estradiol aumentou o número total de células no grupo OVx+E/alérgico, enquanto o tratamento com progesterona no grupo OVx+P/alérgico reduziu a migração celular para o pulmão. Em relação a quantificação de muco nas vias aéreas, observamos redução de muco e colágeno no grupo OVx em relação ao grupo Sham-OVx/alérgico. Nos animais do grupo OVx+P/alérgico observou-se aumento na produção de colágeno em relação ao gupo sem tratamento.
Title in English
Influence of the female sexual hormones about the pulmonary allergic inflammation in model murino of chronic asthma.
Keywords in English
Asthma
Estrogens
Inflammation
Lung
Mice
Progesterone
Abstract in English
We evaluated the influence of female sex hormones on the pulmonary alergic asthma in a experimental chronic asthma model.Groups: Basal, (non-manipulated animals), Ovx (Ovariectomized) and Sham- Ovx/ allergic ( animals subjected to similar manipulations except for the ovaries removal) sensitized 7 days after ovarietcomy and challenged with OVA after the 21st Day, OVX+P/allergic, treated with progesterone (200 µg/Kg) 24h before sensitization or OVx+E/allergic treated with estradiol (300 µg/Kg) 4h before sensitization and the realized challenges, according to the protocol of Ovx animal. Our results showed that the ovarietomy (Ovx) reduces cell migration towards the lungs in OVx groups when compared to the Sham-OVx/allergic group. The treatment with estradiol increased the total number of cells in the Ovx+E/alleric group, while the treatment with progesterone in the OVx+P/allergic group reduced cell migration towards the lung. About the quantification of mucus in the airways, we observed the reduction of mucus and collagen in the OVx group comparing to the non-treated group.
 
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Publishing Date
2010-09-13
 
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