Search results for "Biología molecular."
showing 10 items of 110 documents
Activation of AMPK by medicinal plants and natural products: Its role in type 2 diabetes mellitus
2019
Type-2 Diabetes (T2D) is a metabolic disease characterized by permanent hyperglycemia, whose development can be prevented or delayed by using therapeutic agents and implementing lifestyle changes. Some therapeutic alternatives include regulation of glycemia through modulation of different mediators and enzymes, such as AMP-activated protein kinase (AMPK), a highly relevant cellular energy sensor for metabolic homeostasis regulation, with particular relevance in the modulation of liver and muscle insulin sensitivity. This makes it a potential therapeutic target for antidiabetic drugs. In fact, some of them are standard drugs used for treatment of T2D, such as biguanides and thiazoli-dindione…
dIvergEnt: How IgE Axis Contributes to the Continuum of Allergic Asthma and Anti-IgE Therapies
2017
[EN] Asthma is an airway disease characterised by chronic inflammation with intermittent or permanent symptoms including wheezing, shortness of breath, chest tightness, and cough, which vary in terms of their occurrence, frequency, and intensity. The most common associated feature in the airways of patients with asthma is airway inflammation. In recent decades, efforts have been made to characterise the heterogeneous clinical nature of asthma. The interest in improving the definitions of asthma phenotypes and endotypes is growing, although these classifications do not always correlate with prognosis nor are always appropriate therapeutic approaches. Attempts have been made to identify the m…
The mitochondrial‐derived peptide MOTS ‐c: a player in exceptional longevity?
2015
Mitochondrial-derived peptides (MDP) are encoded by functional short open reading frames in the mitochondrial DNA (mtDNA). These include humanin, and the recently discovered mitochondrial open reading frame of the 12S rRNA-c (MOTS-c). Although more research is needed, we suggest that the m.1382A>C polymorphism located in the MOTS-c encoding mtDNA, which is specific for the Northeast Asian population, may be among the putative biological mechanisms explaining the high longevity of Japanese people. 5.760 JCR (2015) Q1, 36/187 Cell biology, 3/49 Geriatrics & gerontology UEM
Mecanismos moleculares que median las acciones biológicas de los receptores de mineralocorticoides y glucocorticoides en la homeostasis cutánea
2017
Tesis doctoral, 198 páginas, figuras y tablas
Evaluación del valor diagnóstico y pronóstico de las alteraciones moleculares en la leucemia mieloide aguda de novo mediante el empleo de técnicas de…
2020
La leucemia mieloide aguda (LMA) es una enfermedad muy heterogénea desde el punto de vista biológico con numerosas alteraciones moleculares implicadas en su patogenia. El análisis simultáneo de estas alteraciones génicas es imprescindible para conocer los mecanismos de leucemogénesis y evaluar sus implicaciones clínicas de manera individualizada en cada paciente. Las técnicas de next generation sequencing (NGS) han demostrado ser una herramienta eficaz para el análisis integrado de la complejidad de las neoplasias mieloides, por ello, el objetivo de este estudio es realizar una validación técnica y clínica de un panel de NGS dirigida a genes o regiones recurrentemente mutados en la enfermed…
Antioxidative component of docosahexaenoic acid in the brain in diabetes
2020
The mechanisms underlying diabetic encephalopathy are only partially understood. This chapter tries to address the mechanisms of diabetes-induced cell and tissue damage in the brain, and discusses whether docosahexaenoic acid (DHA) could attenuate the degenerative changes observed in the diabetic brain. DHA is involved in brain and retina physiological functions, aging, and neurological and behavioral illnesses. There are a large number of bioactive metabolites of DHA, namely, maresins, protectins, resolvins, electrophilic oxo-derivatives, epoxides, neuroprostanes, neuroketals, and different DHA conjugates. Among them stands out Neuroprotectin D1 (NPD1), the first identified stereoselective…
Respuesta de las Levaduras al Estrés Osmótico causado por Elevadas Concentraciones de Glucosa: Función de las proteínas Hgi1 y Hot1
2015
El éxito de supervivencia de un organismo está vinculado a su habilidad para adaptarse a los cambios que suceden a su alrededor. La levadura S. cerevisiae posee mecanismos para hacer frente a las situaciones desfavorables de estrés, existiendo una respuesta común, dirigida por el factor transcripcional Msn2/4, que se activa rápidamente e independientemente del agente causante del estrés. Msn2/4 afecta a la expresión de aproximadamente 900 genes y está a su vez regulado por las vías PKA y TOR, que controlan el crecimiento celular en función de la disponibilidad de nutrientes. Además de esta respuesta común, la levadura posee mecanismos para hacer frente a las situaciones particulares de estr…
Assessing autophagy in archived tissue or how to capture autophagic flux from a tissue snapshot
2020
This article belongs to the Special Issue Autophagy in Cancer.
The MDM2-p53 pathway is involved in preconditioning-induced neuronal tolerance to ischemia
2018
Brain preconditioning (PC) refers to a state of transient tolerance against a lethal insult that can be evoked by a prior mild event. It is thought that PC may induce different pathways responsible for neuroprotection, which may involve the attenuation of cell damage pathways, including the apoptotic cell death. In this context, p53 is a stress sensor that accumulates during brain ischemia leading to neuronal death. The murine double minute 2 gene (MDM2), a p53-specific E3 ubiquitin ligase, is the main cellular antagonist of p53, mediating its degradation by the proteasome. Here, we study the role of MDM2-p53 pathway on PC-induced neuroprotection both in cultured neurons (in vitro) and rat …
Estudio funcional de factores implicados en la transcripción y exportación de los RNAs en Saccharomyces cerevisiae
2014
La expresión génica en eucariotas ocurre a través del acoplamiento de diferentes procesos finamente regulados e interconectados en los que participan varios complejos multiprotéicos. Nuestro trabajo se centra en el estudio de las conexiones entre esos procesos que aseguran una correcta formación del ARN. La proteína Sus1 es un factor esencial para el correcto acoplamiento entre la transcripción y la exportación de los ARN mensajeros para su traducción en el citoplasma (1, 2). Sus1 es componente de 3 complejos diferentes: -TREX-2, asociado al complejo del poro nuclear y tiene funciones en el metabolismo del ARN mensajero, la exportación del mismo al citoplasma y en estabilidad genómica; -SAG…