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Academic literature on the topic 'Dystrophine – Régénération'
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Dissertations / Theses on the topic "Dystrophine – Régénération"
Lapointe, Évelyne. "Transformation de cellules souches embryonnaires en myoblastes : première étape du développement d'un traitement de la dystrophie musculaire de Duchenne." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23792/23792.pdf.
Full textVallese, Denis. "In vivo behaviour of human precursors into a dystrophic context." Paris 6, 2013. http://www.theses.fr/2013PA066191.
Full textThe Duchenne Muscular Dystrophy (DMD) is a lethal recessive X-linked disease caused by mutations in the dystrophin gene, no effective treatment is available up to date. The development of effective therapies requires the use of animal models both dystrophic and immunotolerant for human cells. In collaboration with James Di Santo at the Pasteur Institute, a new mutant strain of mice was created: the Rag2−Il2rb−Dmd−. This mutant lacks T and B cells, as well as NK cells. It also harbours a mutation in the dystrophin gene. This study focuses on the morphological and immunohistochemical characterization of the muscle phenotype of the new mutant mouse, its comparison with the most used DMD model (mdx) and its potential use to evaluate the regenerative potential of human myogenic progenitors. The results obtained in this thesis have shown that the dystrophic phenotype is similar between the two models. Analysis of muscle regeneration has yielded very promising results. The Rag2−Il2rb−Dmd− mouse shows a peak of spontaneous regeneration between 10 and 16 weeks, which is six weeks of intense regeneration. Results obtained after transplantation of human myoblasts have confirmed that this new model is very suitable for myogenic cells transplantation, which can effectively participate in muscle regeneration. This is very important because allows to study the behaviour of human myogenic stem cells in natural dystrophic context
Caron, Solenne. "Transplantation de myoblastes génétiquement modifiés de patients atteints de dystrophie myotonique dans le muscle de souris." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25168/25168.pdf.
Full textNegroni, Elisa. "Potentiel myogénique des cellules humaines : conséquences en thérapie cellulaire." Paris 6, 2008. http://www.theses.fr/2008PA066080.
Full textMoratal, Claudine. "Les progéniteurs fibro-adipogéniques des muscles squelettiques humains sains et dystrophiques : caractérisation et interactions avec les progéniteurs myogéniques et les macrophages." Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR4128/document.
Full textMuscle regeneration involves functional interactions between different types of mononuclear cells including myogenic progenitors (MPs) and macrophages. Following injury, damaged muscles are invaded by immune cells and MPs fuse to generate new myofibres. Transient fibrotic and adipocyte deposits are observed in regenerating muscles, which however persist in Duchenne muscular dystrophy (DMD) and during aging. We demonstrated that fibro-adipogenic progenitors (FAPs) expressing the PDGFRα surface marker would contribute to the development of non-myogenic deposits in healthy muscles. Indeed, these progenitors differentiate into functional white adipocytes that have the feature to be insulino-resistant, and give rise to myofibroblastes. Intramuscular fibrosis in DMD patients could be formed from both FAPs and MPs differentiation. In healthy muscles, FAPs stimulate myogenesis of MPs during regeneration, while myotubes and pro-inflammatory macrophages inhibit the adipogenesis and fibrogenesis of FAPs. Cellular interactions between FAPs and MPs are disrupted for DMD or aged progenitors. Interestingly, they are restored if aged or DMD FAPs are replaced by healthy and young MPs. Our results show that the human muscles contain fibro-adipogenic progenitors that play a crucial role in the control of muscle homeostasis by interacting with myogenic progenitors and macrophages
Bankolé, Sénakpon Landry Cyrille. "Thérapie par l’exercice et dystrophie facio-scapulo-humérale : étude contrôlée randomisée de 6 mois d’entraînement à domicile : précédée d’une étude histologique du potentiel régénératif musculaire dans deux modèles distincts de myopathies." Thesis, Saint-Etienne, 2014. http://www.theses.fr/2014STET008T/document.
Full textAlthough it is now accepted that physical activity (PA) is not deleterious in myopathies, including muscular dystrophies, there is very little evidence of relevance in the literature. This thesis has allowed to provide for the first time, confirmed evidence of safety and beneficial effects of exercise therapy in FSHD, through an integrative view of the potential benefits of such programs on functional, biological and quality of life. Two groups were randomly formed: control group (CG: 44 ± 10 years) and trained group (TG: 40 ± 13 years). After 6-month of adapted and home-based training, benefits have been reported particularly in terms of aerobic capacity (VO2pic, PMA), strength (MVC) followed by an increase in cross-sectional area (CSA) of muscle fibers, muscle function (muscle endurance, 6MWT) and fatigue experienced by patients. The lack of muscle damage (HES analysis & plasma CK values) and the strong tendency to improving the quality of life, support the idea that our training program is safe. Muscle biology also shows improvements in the activity of some oxidative enzymes (CS and CK). In short, this home-based mixed training program has allowed to achieve functional, tissue and quality of life improvements, which opens perspectives for application to other types of myopathies