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Academic literature on the topic 'Myopathie atypique'
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Journal articles on the topic "Myopathie atypique"
Rigolet, A., O. Mangin, T. Maisonobe, F. Closs-Prophette, A. Ankri, JL Charuel, O. Benveniste, and S. Herson. "Une myopathie lupique très atypique." La Revue de Médecine Interne 32 (June 2011): S157. http://dx.doi.org/10.1016/j.revmed.2011.03.258.
Full textRachilas, F., P. Cherin, B. Eymard, T. Généreau, M. Fardeau, and S. Herson. "Une présentation clinique très atypique de myopathie congénitale." La Revue de Médecine Interne 19 (January 1998): 520. http://dx.doi.org/10.1016/s0248-8663(98)90307-1.
Full textRiche, A., J. Venot, D. Grousseau, and C. Terlaud. "Myopathie proximale atypique, signe révélateur unique d'une tumeur carcinoïde du grêle." La Revue de Médecine Interne 13, no. 6 (May 1992): S193. http://dx.doi.org/10.1016/s0248-8663(05)81665-0.
Full textFernandez, C., C. Halbert, A. Maues de Paula, D. Figarella-Branger, B. Chabrol, and J. F. Pellissier. "Dystrophies musculaires liées au gène DMD : myopathie de Duchenne, myopathie de Becker, formes féminine et atypiques." EMC - Neurologie 7, no. 4 (January 2010): 1–15. http://dx.doi.org/10.1016/s0246-0378(10)43869-5.
Full textBriantais, Antoine, Benjamin De Sainte Marie, Nathalie Bardin, André Maues De Paula, Shahram Attarian, Nicolas Schleinitz, and Emmanuelle Salort-Campana. "Myopathies nécrosantes auto-immunes avec anticorps anti-HMGCR : présentations atypiques." Revue Neurologique 173 (March 2017): S76. http://dx.doi.org/10.1016/j.neurol.2017.01.099.
Full textDissertations / Theses on the topic "Myopathie atypique"
Mansat, Melanie. "Signalisation et implication des phosphoinositides dans la myopathie myotubulaire liée à l'X." Thesis, Toulouse 3, 2022. http://www.theses.fr/2022TOU30039.
Full textPhosphoinositides (PIs) are a minor class of phospholipids that play an essential role in diverse cellular functions highlighted by the direct involvement of their metabolizing enzymes in human pathologies such as genetic diseases or cancers. Their metabolism is extremely active through the action of specific PI-kinases and PI-phosphatases. Under various stimuli, the relocalization of these enzymes allows a rapid and more or less transient generation or depletion of certain PIs, allowing the recruitment of proteins involved in various cellular mechanisms such as migration, differentiation, or proliferation. MTM1, a member of the myotubularin family, is a PI 3-phosphatase that in vitro dephosphorylates phosphatidylinositol 3-phosphate (PI3P) and PI(3,5)P2 into PI and PI5P respectively. This enzyme is mutated in X-linked myotubular myopathy (XLMTM), a rare severe congenital disease characterized at birth by hypotonia, severe muscle weakness and respiratory distress leading to early infant death. In the majority of cases of XLMTM, the expression of MTM1 is strongly reduced or absent. My thesis work focused on the roles of MTM1 products and substrates, and their impact in the etiology of the pathology. For this purpose, I used the C2C12 myoblastic cell line which has the ability to differentiate into contractile myotubes and to reproduce the different stages of myogenesis. We have created and characterized a knockout cell line for Mtm1 using the CRISPR/Cas9 strategy and shown that these cells reproduce the defects observed in the pathology such as nuclei misorganization, and thinner and smaller myotubes. Using this model, we showed that MTM1 is a major enzyme for PI5P production, and surprisingly (while MTM1 is expressed during differentiation), measured a decrease in PI5P level during differentiation. Thus, we hypothesized that PI5P could be metabolized to PI(4,5)P2 by PI5P 4-Kinases (PI5P4Ks), the only conversion pathway for PI5P known to date. Using biochemical, cell biology and microscopy approaches, we demonstrated the involvement of PI5P4Kα in the production of a minor pool of PI(4,5)P2 in particular membrane structures called "podosome-like" essential for myoblast fusion. These results reveal a coordination between a PI-phosphatase and a PI-kinase in the formation of cell structures important for myoblast fusion. In parallel, we have initiated a study on the identification of MTM1 partners through the BioID approach and the results point to an important role of MTM1 in integrin trafficking, correlating with the observed defects in β1-integrin localization in XLMTM. These results are integrated in a second paper which highlights epigenetic alterations as a pathophysiological mechanism of XLMTM, and that histone deacetylase inhibition is a promising therapeutic strategy for this disease. In particular, we show that treatment of Mtm1 knockout C2C12 cells with valproic acid restores a normal phenotype with a normal expression level and localization of integrin-β1, rescuing the observed adhesion defects. Details of the proteins identified with the BioID approach are presented in supplemental results. Moreover, in view of the described roles of MTM1 and its products and substrates, work has been carried out on the disruption of vesicular trafficking in the absence of MTM1. Thus, this thesis work allowed to set up an original cellular model to study MTM1 functions and underlined novel insights into the role of MTM1 and its products and substrates in membrane dynamic during muscle differentiation
STEINBACH, ESTEVE DANIELE. "A propos d'un cas de myopathie mitochondriale atypique : deficit multiple attenue en acyl-coenzyme deshydrogenase et/ou deficit des complexes de la chaine respiratoire mitochondriale ?" Angers, 1993. http://www.theses.fr/1993ANGE1095.
Full textBooks on the topic "Myopathie atypique"
Juban, Stéphane, and Morgane Gérout. Comment Mon Cheval a Survécu à la Myopathie Atypique. Independently Published, 2017.
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