Now showing items 1280-1298 of 1298

    Validación y caracterización de un método inmuno-electroforético para la detección de eritropoyetina recombinante y análogos 

    Belalcazar Guerrero, Viviana (Date of defense: 2007-12-14)

    El objetivo principal de esta tesis fue el de realizar una validación y caracterización de las posibles variables que pueden afectar la metodología empleada para identificar las isoformas presentes en algunas de las especies ...

    Variación haploide en secuencias nucleares humanas: el pseudogén GBA 

    Martínez Arias, Rosa (Date of defense: 2001-03-12)

    Hemos analizado la variabilidad genética de una zona no codificante autosómica, el pseudogén homólogo al gen de la glucocerebrosidasa (psGBA). <br/>Parte del análisis se ha realizado desde la perspectiva de la genética de ...

    Variations of Polycomb assembly in mouse embryonic stem cells and early differentiation 

    Mocavini, Ivano (Date of defense: 2022-03-31)

    Polycomb repressive complex (PRC)1 and 2 are major players in gene regulation, devoted to maintenance of the epigenetic memory of gene silencing. Mouse embryonic stem cells (mESCs) have been extensively exploited as a model ...

    Vascular aspects of Alzheimer's disease: role of oxidative stress on vascular miocytes B-amyloid production and B-amyloid-induced toxicity in endothelial cells 

    Coma Camprodón, Mireia (Date of defense: 2007-06-08)

    En aquest treball de tesis doctoral s'estudia el paper de l'estrès oxidatiu tant a la etiologia com a la patofisiologia del dany vascular associat a la malaltia d'Alzheimer. Es demostra la capacitat de les cèl·lules musculars ...

    Vies d'exposició a compostos organoclorats i metalls en infants 

    Junqué Martínez, Eva (Date of defense: 2019-12-18)

    En aquest estudi s’avaluen algunes de les vies d’exposició principals a diversos contaminants, concretament als compostos organoclorats (OCs) i metalls traça, en infants. La recerca se centra en tres poblacions localitzades ...

    La vigilancia epidemiológica desde una aproximación sindémica: la vigilancia de las infecciones de transmisión sexual y de la tuberculosis centrada en poblaciones a riesgo de infección 

    Sentís Fuster, Alexis (Date of defense: 2023-02-06)

    El propósito principal de la tesis es contribuir en lo posible a potenciar la vigilancia de las pandemias de las infecciones de transmisión sexual (ITS) y la tuberculosis (TB) en las poblaciones a riesgo de infección a ...

    Walking for transportation : estudio de los factores individuales y contextuales que influyen en el caminar como medio de transporte y de sus implicaciones en salud 

    Olabarria Saenz de Viguera, Marta (Date of defense: 2013-05-08)

    Desplazarse a pie es una actividad física moderada, rutinaria e integrada en la vida diaria que podría convertirse en una herramienta para disminuir la tendencia creciente del sedentarismo de la población. El objetivo ...

    Water pollution, cancer and molecular mechanisms 

    Salas Díaz, Lucas Andrés (Date of defense: 2015-07-09)

    Disinfection by-products (DBP) are complex mixtures of toxicants derived from drinking water treatment. Trihalomethanes (THM) and haloacetic acids (HAA) are the most prevalent DBP in chlorinated waters, which are used as ...

    Where, why and how scientific knowledge on health inequalities is generated? : An integrated perspective to strengthen understanding of health inequalities research capacities : Key insights from the United Kingdom and the city of Barcelona 

    Cash-Gibson, Lucinda (Date of defense: 2020-11-12)

    This dissertation aims to understand where, why and how scientific knowledge on health inequalities is produced, why and how some places have strong capacity to produce this, and what determines this capacity. It consists ...

    The wiring diagram of antennal lobe and mapping a brain circuit that controls chemotaxis behavior in the Drosophila larva 

    Khandelwal, Avinash (Date of defense: 2017-01-19)

    Drosophila larvae present unique opportunity for anatomical and functional mapping of their nervous system because of features such as numerical simplicity of neurons its nervous system is composed of, and ability to exhibit ...

    WNT signaling, hypoxia and GATA6 : their role in colorectal cancer, stem cells and disease progression 

    Whissell, Gavin (Date of defense: 2013-12-03)

    The recent discovery that intestinal adenomas are built on a stem cell hierarchy has raised great interest in understanding the signals that maintain tumor stem cells. We unveiled the existence of a transcriptional circuit ...

    Wnt/beta-catenin activity controls the stability of imprinted genes in mouse embryonic stem cells 

    Theka, Ilda (Date of defense: 2017-02-06)

    Las células madre embrionarias (ESCs) derivan de la masa cellular interna de los blastocistos y son capaces de generar las tres capas germinales. Muchos factores controlan la pluripotencia incluyendo la ruta Wnt/β-catenina. ...

    Work trajectories after a sickness absence due to cancer in Catalonia (Spain) 

    Ayala García, Amaya (Date of defense: 2023-12-04)

    The project focuses on cancer and its effects on work trajectories from a life course perspective, both from a qualitative and quantitative approach. Quantitative analyses were based on a retrospective dynamic cohort of ...

    X chromosome status : a gatekeeper of germ cells meiotic entry 

    Severino, Jacqueline (Date of defense: 2021-03-30)

    X chromosome reactivation in female mouse germ cells is essential for the transmission of one active X chromosome to the progeny. However, despite its key role in development, the mechanistic details and kinetics still ...

    Zeb1, un gen implicat en la repressió transcripcional de l'E-Cadherina durant la transició epiteli-mesènquima. Caracterització del mecanisme de regulació de la seva expressió 

    Guaita Esteruelas, Sandra (Date of defense: 2005-09-21)

    Durant la transició Epiteli-Mesènquima (TEM), el factor de transcripció Snail reprimeix la transcripció de l'E-cadherina unint-se a les caixes E presents en el promotor d'aquest gen.<br/>Les cèl·lules que expressen Snail ...

    Zebrafish lateral line system: The roles of Eya1 in migrating primordium and Notch signaling in hair cell development and regeneration 

    Wibowo, Indra (Date of defense: 2011-07-04)

    The purpose of this thesis is to introduce and demonstrate several biological processes or phenomena using posterior lateral line system of zebrafish as a model. The first part of this work focuses on the highly dynamic ...

    Zinc homeostasis and disease : Impact on breast cancer progression and infection severity 

    Vogel González, Marina (Date of defense: 2021-09-03)

    Zinc is an essential trace element with structural, catalytic and signaling roles in our body. At cellular level, zinc homeostasis participates in fundamental functions such as cell proliferation, migration, differentiation ...

    ZRF1-mediated transcriptional regulation in acute myeloid leukemia 

    Demajo Meseguer, Santiago (Date of defense: 2014-02-21)

    Acute myeloid leukemia (AML) is frequently linked to epigenetic abnormalities and deregulation of gene transcription, which lead to aberrant cell proliferation and accumulation of undifferentiated precursors. ZRF1, a ...

    β-catenin fluctuates in mouse ESCs and is essential for Nanog-mediated reprogramming of somatic cells to pluripotency 

    Pedone, Elisa (Date of defense: 2014-12-16)

    Mouse embryonic stem (ES) cells derived from the inner cell mass of the blastocyst can be maintained in culture, under pluripotent conditions, using Serum+LIF medium. However, it has been published that the minimal combination ...