Exploració per tema "Calcium"

Ara es mostren els items 1-17 de 17

    • Analysis of homestatic regulation in cardiac cells 

      Conesa Ortega, David (Universitat Politècnica de Catalunya, 2018-06)
      Treball Final de Grau
      Accés obert
      Calcium ions play a leading role in heart contraction. Heart beats at a pace given by the sinoatrial node where an action potential is generated, then propagated to the rest of cardiac cells. Contractile force depends on ...

    • Análisis semicuantitativo del calcio y fósforo en el esmalte y la dentina 

      Clemente Presas, A.; García Molina, J.A.; Greco Machado, Y.; Carvalho Lobato, P.; Belmonte Calderón, A.; Serra Renom, I.; Manzanares Céspedes, M.C. (Sociedad Ibérica de Biomecánica y Biomateriales, 2002-12)
      Article
      Accés obert
      Existe una serie de características comunes asociadas al proceso biológico de formación de los tejidos calcificados a pesar de que los productos finales sean estructuralmente distintos. La presente investigación tiene ...

    • Análisis semicuantitativo del calcio y fósforo en los tejidos calcificados de la mandíbula 

      Henríquez Távara, N.; García Molina, J.A.; Greco Machado, Y.; Carvalho Lobato, P.; Belmonte Calderón, A.; Serra Renom, I.; Manzanares Céspedes, M.C. (Sociedad Ibérica de Biomecánica y Biomateriales, 2002-12)
      Article
      Accés obert
      El objetivo de nuestra investigación es realizar un estudio microanalítico semicuantitativo del calcio y el fósforo en los tejidos calcificados de la mandíbula. Dentro de este estudio se pretende calcular el valor de la ...

    • Are SR Ca content fluctuations or SR refractoriness the key to atrial cardiac alternans?: insights from a human atrial model 

      Lugo Vélez, Carlos Antonio; Rodríguez Cantalapiedra, Inma; Peñaranda Ayllón, Angelina; Hove-Madsen, Leif; Echebarría Domínguez, Blas (2014-06-01)
      Article
      Accés restringit per política de l'editorial
      Despite the important role of electromechanical alternans in cardiac arrhythmogenesis, its molecular origin is not well understood. The appearance of calcium alternans has often been associated to fluctuations in the ...

    • Assessment of Calcium Looping as a solution for CO2 capture in the steel production process 

      Ruiz Mateo, Mario (Universitat Politècnica de Catalunya / Universität Stuttgart, 2014)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Universität Stuttgart
      In this study a first assessment of the utilization of the Calcium Looping (CaL) as a CO2 capture method in the steel production process has been done. The applicability of CaL for CO2 capture from the blast furnace gas ...

    • Calcium alternans produced by increased sarcoplasmic reticulum refractoriness 

      Rodríguez Cantalapiedra, Inma; Lugo Vélez, Carlos Antonio; Peñaranda Ayllón, Angelina; Echebarría Domínguez, Blas (2011-09-29)
      Article
      Accés obert
      Despite the important role of electro-mechanical alternans in cardiac arrhythmogenesis, its molecular origin is not well understood. In this paper we want to study alternans that can be associated with alternations in the ...

    • Control of calcium homeostasis and load regulation in a ventricular Z- Plane model 

      Martin de Pablo, Luis (Universitat Politècnica de Catalunya, 2017-07)
      Treball Final de Grau
      Accés obert
      Calcium is considered one of the most important ions involved in the intricate workings of the heart. The control of intracellular calcium is crucial to the process called excitation-contraction coupling, enabling the ...

    • Development and characterization of biphasic hydroxyapatite/ß-TCP cements 

      Gallinetti, Sara; Canal Barnils, Cristina; Ginebra Molins, Maria Pau (2014-04)
      Article
      Accés restringit per política de l'editorial
      Biphasic calcium phosphate bioceramics composed of hydroxyapatite (HA) and ß-tricalcium phosphate (ß-TCP) have relevant properties as synthetic bone grafts, such as tunable resorption, bioactivity, and intrinsic osteoinduction. ...

    • Effect of RyR2 refractoriness and hypercalcemia on calcium overload, spontaneous release, and calcium alternans 

      Álvarez Lacalle, Enrique; Peñaranda Ayllón, Angelina; Rodríguez Cantalapiedra, Inma; Hove-Madsen, Leif; Echebarría Domínguez, Blas (2013)
      Article
      Accés restringit per política de l'editorial
      In this work we use a computer model of a ventricular rabbit myocyte to study several factors that affect sarcoplasmic reticulum (SR) calcium load, such as hypercalcemia, SR calcium buffering, or ryanodine receptor ...

    • Eliminació de metalls en dissolucions aquoses mitjançant extracte de rapa de raïm encapsulat en perles d’alginat de calci 

      Sahún Cabanes, Júlia (Universitat Politècnica de Catalunya, 2020-10-26)
      Treball Final de Grau
      Accés obert
      La contaminació de les aigües, principalment deguda a l’activitat minera, genera altes concentracions de metalls, metal·loides i sulfats, que poden produir degradació mediambiental i la pèrdua de biodiversitat en els ...

    • Inorganic nanoparticles for skin wound healing 

      Rifé Badia, Júlia (Universitat Politècnica de Catalunya, 2021-07-08)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat

    • Mitochondria and calcium defects correlate with axonal dysfunction in GDAP1-related Charcot-Marie-Tooth mouse model 

      Civera Tregón, Azahara; Benítez Iglesias, Raúl; Hoenicka, Janet; Palau, Francesc (2021-05)
      Article
      Accés obert
      Ganglioside-induced differentiation associated protein 1 (GDAP1) gene encodes a protein of the mitochondrial outer membrane and of the mitochondrial membrane contacts with the endoplasmic reticulum (MAMs) and lysosomes. ...

    • Multiscale image analysis of calcium dynamics in cardiac myocytes 

      Vallmitjana Lees, Alexander; Benítez Iglesias, Raúl (2022-06-01)
      Article
      Accés obert
      Cardiac myocytes are the muscle cells that build up heart tissue and provide the mechanical action to pump blood by synchronously contracting at every heartbeat. Heart muscle contraction is regulated by intracellular calcium ...

    • PEG hydrogel containing calcium-releasing particles and mesenchymal stromal cells promote vessel maturation 

      Navarro Requena, Claudia; Weaver, Jessica D.; Clark, Amy Y.; Clift, Douglas; Pérez Amodio, Soledad Graciela; Castaño Linares, Óscar; Zhou, Dennis W.; García, Andrés J.; Engel López, Elisabeth (2018-02)
      Article
      Accés restringit per política de l'editorial
      The use of human mesenchymal stromal cells (hMSC) for treating diseased tissues with poor vascularization has received significant attention, but low cell survival has hampered its translation to the clinic. Bioglasses and ...

    • Production and optimization of an UO2 electrode by electrodeposition to perform corrosion studies in hyper-alkaline conditions with calcium and silicium electrolytes 

      Torres-Rivero Andrade, Karina (Universitat Politècnica de Catalunya, 2017)
      Projecte Final de Màster Oficial
      Accés obert
      The nuclear waste generated due to the production of electricity is confined into isolated repositories. Because of the use of cement in the isolation barriers and also its use as sealing material, it is important to ...

    • Simulating intracellular calcium dynamics 

      Losada Sosnovsky, Juan Manuel; Pita Vidal, Marta (Universitat Politècnica de Catalunya, 2015)
      Treball d'assignatura
      Accés obert
      Calcium concentration in the myocytes is crucial in cardiac excitation-contraction coupling (the conversion of an electrical stimulus to a mechanical contraction of the heart cells). This part of the intricate process ...

    • The cardiac ryanodine receptor, but not sarcoplasmic reticulum Ca2-ATPase, is a major determinant of Ca2 alternans in intact mouse hearts 

      Sun, Bo; Wei, Jinhong; Zhong, Xiaowei; Vallmitjana Lees, Alexander; Benítez Iglesias, Raúl (2018-07-09)
      Article
      Accés obert
      Sarcoplasmic reticulum (SR) Ca2+ cycling is governed by the cardiac ryanodine receptor (RyR2) and SR Ca2+-ATPase (SERCA2a). Abnormal SR Ca2+ cycling is thought to be the primary cause of Ca2+ alternans that can elicit ...