36 research outputs found

    Papel de la convertasa de TNF-[alfa] en modelos de isquemia cerebral

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    Tesis de la Universidad Complutense de Madrid, Facultad de Farmacia, Departamento de Bioquímica, leída el 11-07-2002Mediante el uso de dos modelos in vitro de isquemia cerebral, que son las rebanadas de cerebro anterior de rata y el cultivo primario de neuronas corticales hemos estudiado lo siguiente: * Si existe liberación de TNF-alfa tras una isquemia experimental. * Si este TNF-alfa liberado procede del enzima TACE * Que ocurre con la expresión y actividad TACE después de una isquemia experimental. * Cuál es el papel del glutámico en la expresión de TACE. * Estudiar las acciones tóxicas y neuroprotectoras del TNF-alfaSección Deptal. de Bioquímica y Biología Molecular (Farmacia)Fac. de FarmaciaTRUEpu

    Caracterización de las donaciones de alimentos solicitadas por entidades de apoyo social en la Comunidad de Madrid: Una valoración preliminar.

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    Introduction: Each year, the number of economically disadvantaged users who are chronically dependent on food bank donations is considerably increasing in high-income countries. Given that the availability and quality of the food donated will affect their health status, the project has been proposed to assess the nutritional quality of foods requested by social support organisations in Madrid Region. Methods:  A field survey was carried out, where 69 social support organisations requesting foodswere identified in Madrid Region, among which 23 provided responded to a questionnaire on the food required, as well as on specific indications and recommendations. Collected data were integrated in a database. Results:  The most requested foods by the organisations in descending order were: milk, canned fish, canned pulses and vegetables, biscuits, soluble cocoa, olive oil, canned meat, sugar, pasta and infant milks. Many organisations indicated that breakfast and afternoon snacks should be milk, muffins, biscuits, pastries, cocoa cream and juices. The main reason for requesting non-perishable food was due to the lack of appropriate facilities. Conclusions: The high percentage of unhealthy food requested by the different social support associations in Madrid does not favour food security or meet the nutritional needs of the users who depend on them as a primary source. In the case of breakfast and snacks, a wrong image is conveyed as to what should be the recommended option for a child. Funding: no financing.Introducción: Cada año, el número de usuarios económicamente desfavorecidos que dependen de las donaciones de alimentos de forma habitual está aumentando considerablemente en países de renta alta. Dado que la disponibilidad y características de los alimentos donados afectará a su estado de salud, se plantea hacer un estudio de los tipos de alimentos solicitados por entidades de apoyo social en la Comunidad de Madrid. Metodología: Se ha desarrollado un trabajo de campo cualitativo en el que se han identificado a través de medios de comunicación y una búsqueda en internet 69 organizaciones de apoyo social de la Comunidad de Madrid que recogen alimentos, de las cuales 23 respondieron a un cuestionario sobre los alimentos requeridos, así como algunas indicaciones y recomendaciones específicas. Los datos recogidos fueron integrados en una base de datos. Resultados: Los alimentos más solicitados por las entidades en orden descendiente fueron: leche, conservas de pescado, de legumbres y de verdura, galletas, cacaos solubles, aceite de oliva, conservas de carne, azúcar, pasta y leches infantiles. Numerosas entidades indicaban que los alimentos para desayunos y meriendas debían ser leche, magdalenas, galletas, bollería, crema de cacao y zumos. La principal causa por la que pedían alimentos no perecederos era por no disponer de instalaciones apropiadas. Conclusiones: El elevado porcentaje de alimentos poco saludables que son solicitados por las diferentes asociaciones madrileñas de apoyo social no favorece la seguridad alimentaria ni satisface las necesidades nutricionales de los usuarios que dependen de estas como fuente primaria de alimentación. En el caso del desayuno y la merienda, se traslada una imagen errónea respecto a cuál debe ser la opción recomendable en la infancia. Financiación: sin financiación

    Perspectiva de género en la asignatura de farmacología

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    En este proyecto de innovación docente hemos trabajo para comenzar a poner las bases de posibles diferencias que pueden existir en la farmacología de los medicamentos, atendiendo a si la persona que los toma es un hombre o una mujer. Con alumnos del grado de Nutrición Humana y Dietética y de Odontología hemos buscado bibliografía que nos demuestre si efectivamente se dan estas diferencias en la farmacocinética, en la farmacodinamia y en los efectos adversos. Los resultados encontrados nos han permitido presentar 2 comunicaciones en congresos y realizar un TFGDepto. de Farmacología y ToxicologíaFac. de MedicinaFALSEsubmitte

    IMPACT-Global Hip Fracture Audit: Nosocomial infection, risk prediction and prognostication, minimum reporting standards and global collaborative audit. Lessons from an international multicentre study of 7,090 patients conducted in 14 nations during the COVID-19 pandemic

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    Hyperoxemia and excess oxygen use in early acute respiratory distress syndrome : Insights from the LUNG SAFE study

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    Publisher Copyright: © 2020 The Author(s). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.Background: Concerns exist regarding the prevalence and impact of unnecessary oxygen use in patients with acute respiratory distress syndrome (ARDS). We examined this issue in patients with ARDS enrolled in the Large observational study to UNderstand the Global impact of Severe Acute respiratory FailurE (LUNG SAFE) study. Methods: In this secondary analysis of the LUNG SAFE study, we wished to determine the prevalence and the outcomes associated with hyperoxemia on day 1, sustained hyperoxemia, and excessive oxygen use in patients with early ARDS. Patients who fulfilled criteria of ARDS on day 1 and day 2 of acute hypoxemic respiratory failure were categorized based on the presence of hyperoxemia (PaO2 > 100 mmHg) on day 1, sustained (i.e., present on day 1 and day 2) hyperoxemia, or excessive oxygen use (FIO2 ≥ 0.60 during hyperoxemia). Results: Of 2005 patients that met the inclusion criteria, 131 (6.5%) were hypoxemic (PaO2 < 55 mmHg), 607 (30%) had hyperoxemia on day 1, and 250 (12%) had sustained hyperoxemia. Excess FIO2 use occurred in 400 (66%) out of 607 patients with hyperoxemia. Excess FIO2 use decreased from day 1 to day 2 of ARDS, with most hyperoxemic patients on day 2 receiving relatively low FIO2. Multivariate analyses found no independent relationship between day 1 hyperoxemia, sustained hyperoxemia, or excess FIO2 use and adverse clinical outcomes. Mortality was 42% in patients with excess FIO2 use, compared to 39% in a propensity-matched sample of normoxemic (PaO2 55-100 mmHg) patients (P = 0.47). Conclusions: Hyperoxemia and excess oxygen use are both prevalent in early ARDS but are most often non-sustained. No relationship was found between hyperoxemia or excessive oxygen use and patient outcome in this cohort. Trial registration: LUNG-SAFE is registered with ClinicalTrials.gov, NCT02010073publishersversionPeer reviewe

    Papel de la convertasa de TNF-[alfa] en modelos de isquemia cerebral

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    Mediante el uso de dos modelos in vitro de isquemia cerebral, que son las rebanadas de cerebro anterior de rata y el cultivo primario de neuronas corticales hemos estudiado lo siguiente: * Si existe liberación de TNF-alfa tras una isquemia experimental. * Si este TNF-alfa liberado procede del enzima TACE * Que ocurre con la expresión y actividad TACE después de una isquemia experimental. * Cuál es el papel del glutámico en la expresión de TACE. * Estudiar las acciones tóxicas y neuroprotectoras del TNF-alf

    Sustainable production of jojobyl alcohols and cell viability study

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    Abstract: An innovative biorefinery approach has been applied to evaluate jojoba oil (JO) in high value-added products. It consists of enzymatic transesterification using short (1-propanol, 1-butanol), medium linear (1-octanol), and branched (2-ethylhexanol) chain alcohols. The proposed biorefinery approach uses an integrated process for the production of jojobyl alcohol (JA) mixtures (11-eicosenol, 13-docosenol and 15-tetracosenol) as products that can be used in pharmaceutical applications. The remaining fraction of fatty acid alkyl esters (FAAE) has a wide range of industrial uses and could be used as a promising alternative to conventional fuels, as it complies with EN14214, the European Biodiesel Norm. The separation of JA from FAAE was carried out by crystallization using a binary mixture of hexane and diethyl ether. After the separation step, the main properties of FAAE were determined. The results showed that the cold flow properties and oxidation stability of the FAAE fraction, obtained as co-product during the process, have been improved with respect to transesterified JO. The use of 2-ethylhexanol as an alcohol in the transesterification reaction increases the amount of the most valuable fraction containing JAs. In vitro cell viability was measured in HEK293T cells using the tetrazolium dye reduction (MTT) assay. The results showed that this oily liquid mixture of JA components (cis-11-eicosenol, cis-13-docosenol, and cis-15-tetracosenol) had a cytotoxic effect at concentrations of 10 and 100 μmol L−1 and no cytotoxic activity at 1 μmol L−1. The concentration of 1 μmol L−1 does not, therefore, modify the cell viability, does not produce toxic effects in the tested cells and could be used as a therapeutic compound.Depto. de Farmacología y ToxicologíaFac. de MedicinaTRUEpu
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