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Academic literature on the topic 'ATPases calcium-dépendantes du réticulum sarcoplasmique'
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Dissertations / Theses on the topic "ATPases calcium-dépendantes du réticulum sarcoplasmique"
Lawson, Christine. "Modulation du CA²⁺ intracellulaire et de la phosphorylation en tyrosine durant la capacitation des spermatozoïdes humains : rôles de la Ca²⁺-ATPase SERCA2 et de la tyrosine kinase SRC." Doctoral thesis, Université Laval, 2008. http://hdl.handle.net/20.500.11794/20447.
Full textTroullier, Agnès. "Mécanisme d'inhibition des ATPases de transport ionique de type P par les fluroaluminates : étude de l'ATPase-CA2+ du reticulum sarcoplasmique et de l'ATPase-H+ plasmique de levure (Schizosaccharomyces pombe)." Université Joseph Fourier (Grenoble), 1993. http://www.theses.fr/1993GRE19001.
Full textBobe, Régis. "Identification des CA²+-ATPases de type Réticulum Sarco/Endoplasmique exprimées dans les plaquettes sanguines et modulation de leurs expressions dans des systèmes pathologiques ou induits." Paris 5, 1997. http://www.theses.fr/1997PA05S025.
Full textMême, William. "Rôle de la Ca2+-ATPase du réticulum sarcoplasmique et participation de l'échange sodium/calcium dans la réponse contractile de la fibre musculaire squelettique de grenouille." Tours, 1998. http://www.theses.fr/1998TOUR3307.
Full textThe purpose of the present work was to assess the relative role of the sarcoplasmic reticulum in promoting relaxation in fast-twitch skeletal fibres from frog semitendinosus muscle. The effects of cyclopiazonic acid (CPA) a specifie inhibitor of the sarcoplasmic reticulum calcium ATPase was tested on the calcium transient, the isometric tension, the calcium sensitivity of the contractile proteins and on the calcium currents. The results show that the inhibition of the sarcoplasmic reticulum calcium ATPase induces a twitch potentiation which was associated with a broadening rather than an increase in the amplitude of the calcium transient. On the potassium contractures, CPA at low concentration produces an increase in the amplitude and in the time course of the relaxation without alteration in the activation of the voltage sensor. Moreover, CPA (:5: 2 JlM) does not changes the resting and action potentials. In skinned fibers, the calcium sensitivity of the contractile proteins was not modified while the maximal tension was decreased by CPA (> 5 JlM). The amplitude of the calcium current (!CaL) was decreased by CPA at 2 J. 1M while thapsigargin (1 J. L. M) has no effect. In the presence of CPA, the decrease in the external sodium concentration induces a transient contracture related to an influx of calcium through the sodium calcium exchange in the reverse mode
Hadri, Lahouaria. "Régulation de l'expression et rôle de l'isoforme Ca 2+ -ATPase du réticulum sarco/endoplasmique de type 3, SERCA 3, dans les cellules endothéliales." Paris 11, 2005. http://www.theses.fr/2005PA114804.
Full textVandebrouck, Aurélie. "Régulation des entrées de calcium dépendantes des réserves intracellulaires par le complexe protéique associé à la dystrophine dans les cellules musculaires squelettiques." Poitiers, 2005. http://www.theses.fr/2005POIT2318.
Full textIn Duchenne Muscular Dystrophy, absence of dystrophin is accompanied by a chronic elevation of intracellular calcium, which may leads to fibre necrosis. Store-operated calcium entry (SOCE) could be responsible of a maintained calcium influx during muscle cells activity. In our mouse cell lines, we have observed that depletion of calcium stores led to a calcium influx, which was modulated by depolarisation of mitochondria. In myotubes expressing minidystrophin, the entries were faster than in dystrophin deficient myotubes. SOCE also led to calcium entry into mitochondria, a major calcium buffer of muscle cells. These intramitochondrial entries were smaller in myotubes expressing minidystrophin. We propose that minidystrophin could improve calcium homeostasis and cell survival through a better control of SOCE and mitochondria loading. This control may be performed thanks to -syntrophin which can associate with TRPC1 a component of SOC
Jesus, Florence de. "Caractérisation des propriétés de la partie membranaire de l'ATPase-Ca2+ du réticulum sarcoplasmique du muscle squelettique de lapin : étude de la perméabilité passive aux cations monovalents et divalents." Université Joseph Fourier (Grenoble ; 1971-2015), 1995. http://www.theses.fr/1995GRE10229.
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