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Academic literature on the topic 'Asthme – Modèles animaux'
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Dissertations / Theses on the topic "Asthme – Modèles animaux"
Gilet, Jules. "Rôle des chimiokines dans le développement des réactions allergiques : apport des modèles murins." Lille 2, 2008. http://www.theses.fr/2008LIL2S052.
Full textSpahr, Annie. "Caractérisation des macrophages alvéolaires chez un modèle animal d'asthme allergique." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24369/24369.pdf.
Full textLauzon-Joset, Jean-François. "Caractérisation des cellules épithéliales bronchiques murines dans un modèle asthmatique." Master's thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/21887.
Full textPlé, Coline. "Rôle des cellules Natural Killer dans l'asthme allergique." Phd thesis, Université du Droit et de la Santé - Lille II, 2010. http://tel.archives-ouvertes.fr/tel-00473006.
Full textTaillefer, Michel. "Rôle du récepteur 1 de la sphingosine-1-phosphate dans les dysfonctions épithéliales observées dans un modèle d'asthme." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29705/29705.pdf.
Full textAsthma is in progression and 5 to 10 % of asthmatics are refractory to current interventions. In the lung, activation of sphingosine-1-phosphate receptor 1 (S1PR1) by specific agonists inhibits allergic airway inflammation in a murine model of asthma. However, cellular mechanisms and targeted cells are unknown. Since dysfunctions of bronchial epithelial cells (BEC) are central in asthma pathogenesis, activation of S1PR1 was evaluated in the reversal of BEC dysfunctions in a model of asthma and in human cells. Upregulation of S1PR1 in BEC of rats with experimental asthma and in human cells reversed epithelial cell dysfunctions. Indeed activation of S1PR1 by the specific agonist CYM-5442 decreases paracellular permeability and reduces the release of chemokine, under proinflammatory conditions. Therefore, S1PR1 seems to be involved in maintaining pulmonary homeostasis. This metabolic pathway could be of interest for controlling refractory asthma.
Chesné, Julie. "Rôle de l'IL-17A dans un modèle d'asthme allergique aux acariens." Nantes, 2014. http://archive.bu.univ-nantes.fr/pollux/show.action?id=b27c20f9-2191-4090-878b-b0b7491c0ba8.
Full textAsthma is a heterogeneous inflammatory disease defined by multiple inflammatory and clinical phenotypes. In this thesis, we highlighted the involvement of the T helper 17 (TH17) response in two major components of asthma: bronchial contraction and pulmonary inflammation. At first, we characterized our HDM-induced murine asthma model based on the functional and inflammatory criteria. The mode of allergic sensitization by skin and respiratory tract is important in the induction of a mixed inflammatory phenotype. The "asthmatic" mice exhibits an impaired lung function and a significant inflammatory infiltrate in neutrophils and eosinophils. This correlates with strong IL-13, IL-4, IL-17A-mediated TH2 and TH17 responses. Next, we investigated the individual role of IL-17A and IL-13 in our model. We find that IL-17A but not IL-13 is responsible for neutrophil infiltration and bronchial hyperreactivity. Although neutrophils have an important role in the contractile response, our results have shown a direct role of the IL-17A on the smooth muscle. This regulatory mechanism induced by IL-17 is dependent on the activity of a small G protein, called Rac1. Our results describe a major role of IL-17A in asthma with a mixed inflammation. Neutralization of this cytokine decreases the lung inflammation but also bronchial contraction. IL-17A is a potential therapeutic target in severe asthma
Duez, Catherine. "La souris SCID humanisée : modèle d'étude de la réaction asthmatique allergique." Lille 1, 1997. http://www.theses.fr/1997LIL10218.
Full textCastan, Laure. "De l'allergie alimentaire à l'asthme : rôle de CCR9." Thesis, Nantes, 2017. http://www.theses.fr/2017NANT1018/document.
Full textAllergic diseases are now considered as the fourth worldwide diseases in terms of morbidity, according to the World Health Organization. Allergic diseases and their natural evolution (atopic march) are a major health issue, particularly among developed countries. Indeed, the atopic march is characterized by an evolution from atopic dermatitis and/or food allergies in young children (6 months to 2 years) to respiratory allergies such as asthma and rhinitis later in life. This natural history could involve the chemotaxis, controlled by the chemokine/chemokine receptor system. Using a murine model of atopic march combining a food allergy model to gluten and a model of acute asthma to house dust mite, we analyzed the role of the chemokine receptor CCR9 in the evolution of the disease. Using knock-out mice for CCR9, we observed a decrease of the symptoms of the disease, suggesting a role for this receptor in the pathology. Moreover, we showed that CCR9 seems to act on the Treg/TH17 balance; indeed its deletion induces an increase of the T regulators cell level. Meanwhile, using a food allergy model to gluten based on cutaneous sensitizations, we analyzed the intestinal inflammation to different gluten products. This work was done in collaboration with a lab of the National Food Institute, in Denmark. Our results prove the great significance of the gutlung axis and more generally the importance of approaching the allergy as a whole disease and not as an organ-specific disease
Zhang, Zhikun. "Study of the role of thymic stromal lymphopoietin in atopic diseases." Université Louis Pasteur (Strasbourg) (1971-2008), 2008. http://www.theses.fr/2008STR13114.
Full textDuguet, Alexandre. "Modèles animaux des déterminants de l'inflammation bronchique à éosinophiles et de la dynamique musculaire lisse dans l'hyperréactivité bronchique." Paris 6, 2002. http://www.theses.fr/2002PA066407.
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