47 research outputs found

    Programa de Educación para la Salud a pacientes en tratamiento con anticoagulantes orales desde Atención Primaria

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    Introducción: El mecanismo de la coagulación consiste en una serie de reacciones en las que el resultado final es la formación del coágulo. Los anticoagulantes orales inhiben su formación y poseen propiedades antagonistas de la Vitamina K. En España el más utilizado es el Acenocumarol (Sintrom®). Estos fármacos precisan un manejo especial ya que tienen estrechos márgenes terapéuticos, posibilidad de efectos secundarios graves y ciertas interacciones farmacológicas y alimentarias, lo que les obliga a una estricta monitorización. Los anticoagulantes orales alargan el tiempo de coagulación de la sangre y se utilizan en: prevención de eventos trombóticos en la fibrilación auricular, prótesis valvulares cardíacas y episodios previos de trombosis. En España el número de pacientes anticoagulados oscila entre 800.000 y 1.000.000 de personas. El seguimiento de estos pacientes desde el ámbito de la Atención primaria proporciona mayor seguridad, accesibilidad y un manejo multidisciplinar. Objetivo: Informar y proporcionar recursos a los pacientes en tratamiento con anticoagulantes orales y/o a sus cuidadores principales para su mejor manejo y adherencia desde Atención Primaria. Metodología: Se ha realizado una búsqueda bibliográfica utilizando bases de datos y páginas web. Acorde con el objetivo y los resultados de dicha búsqueda se ha elaborado un Programa de educación para la salud. Conclusión: La educación sanitaria proporciona un papel esencial en los pacientes con anticoagulantes orales. Desde Atención primaria, enfermería establece un pilar fundamental en la enseñanza del manejo y control del tratamiento. Palabras clave: Anticoagulantes orales, Programa de educación para la salud, Atención primaria, Enfermería, Acenocumarol

    Human ESCs predisposition to karyotypic instability: Is a matter of culture adaptation or differential vulnerability among hESC lines due to inherent properties?

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    <p>Abstract</p> <p>Background</p> <p>The use of human embryonic stem cells (hESCs) in research is increasing and hESCs hold the promise for many biological, clinical and toxicological studies. Human ESCs are expected to be chromosomally stable since karyotypic changes represent a pitfall for potential future applications. Recently, several studies have analysed the genomic stability of several hESC lines maintained after prolonged <it>in vitro </it>culture but controversial data has been reported. Here, we prompted to compare the chromosomal stability of three hESC lines maintained in the same laboratory using identical culture conditions and passaging methods.</p> <p>Results</p> <p>Molecular cytogenetic analyses performed in three different hESC lines maintained in parallel in identical culture conditions revealed significant differences among them in regard to their chromosomal integrity. In feeders, the HS181, SHEF-1 and SHEF-3 hESC lines were chromosomally stable up to 185 passages using either mechanical or enzymatic dissection methods. Despite the three hESC lines were maintained under identical conditions, each hESC line behaved differently upon being transferred to a feeder-free culture system. The two younger hESC lines, HS181 (71 passages) and SHEF-3 (51 passages) became chromosomally unstable shortly after being cultured in feeder-free conditions. The HS181 line gained a chromosome 12 by passage 17 and a marker by passage 21, characterized as a gain of chromosome 20 by SKY. Importantly, the mosaicism for trisomy 12 gradually increased up to 89% by passage 30, suggesting that this karyotypic abnormality provides a selective advantage. Similarly, the SHEF-3 line also acquired a trisomy of chromosome 14 as early as passage 10. However, this karyotypic aberration did not confer selective advantage to the genetically abnormal cells within the bulk culture and the level of mosaicism for the trisomy 14 remained overtime between 15%–36%. Strikingly, however, a much older hESC line, SHEF-1, which was maintained for 185 passages in feeders did not undergo any numerical or structural chromosomal change after 30 passages in feeder-free culture and over 215 passages in total.</p> <p>Conclusion</p> <p>These results support the concept that feeder-free conditions may partially contribute to hESC chromosomal changes but also confirm the hypothesis that regardless of the culture conditions, culture duration or splitting methods, some hESC lines are inherently more prone than others to karyotypic instability.</p

    Report of the FELASA-EFAT Working Group

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    Publisher Copyright: © The Author(s) 2023.Competent, confident and caring laboratory animal caretakers, technicians and technologists (LAS staff) are vital for good animal welfare, high-quality science and a secure Culture of Care. This requires high-quality education, training, supervision and continuing professional development (CPD) of LAS staff. However, there is a lack of harmonisation regarding how this education and training is conducted among European countries, and nor are there recommendations adapted to Directive 2010/63/EU. Therefore, FELASA and EFAT established a working group with the task of establishing recommendations for education, training and CPD for LAS staff. The working group established five different levels (LAS staff levels 0–4), defining the required level of competence and attitude, as well as suggesting educational requirements for reaching each level. Defining these levels should help to ensure that appropriate educational and CPD activities are in place, and to enable employers and LAS staff to determine the level and career stage attained. Furthermore, proper assessment of competencies and effective CPD schemes for all relevant staff should be established. Regulators should support this by setting standards for competence assessment and ensuring that they are consistently applied. In addition, establishments should involve the LAS staff in defining and developing the Culture of Care. The Animal Welfare Body should be involved and have oversight of education, training and CPD. These recommendations will contribute to harmonisation and increased quality of education, training and CPD, as well as provide clearer career pathways for LAS staff, helping to ensure high standards of animal welfare and science.publishersversionepub_ahead_of_prin

    Development of an instrument to measure the degree of critical patient's satisfaction with nursing care: research protocol

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    Aim: To investigate and understand patient's satisfaction with nursing care in the intensive care unit to identify the dimensions of the concept of"satisfaction" from the patient's point of view. To design and validate a questionnaire that measures satisfaction levels in critical patients. Background: There are many instruments capable of measuring satisfaction with nursing care; however, they do not address the reality for critical patients nor are they applicable in our context. Design: A dual approach study comprising: a qualitative phase employing Grounded Theory and a quantitative and descriptive phase to prepare and validate the questionnaire. Methods: Data collection in the qualitative phase will consist of: in-depth interview after theoretical sampling, on-site diary and expert discussion group. The sample size will depend on the expected theoretical saturation n = 27-36. Analysis will be based on Grounded Theory. For the quantitative phase, the sampling will be based on convenience (n = 200). A questionnaire will be designed on the basis of qualitative data. Descriptive and inferential statistics will be used. The validation will be developed on the basis of the validity of the content, the criteria of the construct and reliability of the instrument by the Cronbach's alpha and test-retest approach. Approval date for this protocol was November 2010. Discussion: Self-perceptions, beliefs, experiences, demographic, socio-cultural epistemological and political factors are determinants for satisfaction, and these should be taken into account when compiling a questionnaire on satisfaction with nursing care among critical patients

    Molecular Characterization of Spontaneous Mesenchymal Stem Cell Transformation

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    Background. We previously reported the in vitro spontaneous transformation of human mesenchymal stem cells (MSC) generating a population with tumorigenic potential, that we termed transformed mesenchymal cells (TMC). Methodology/Principal Findings. Here we have characterized the molecular changes associated with TMC generation. Using microarrays techniques we identified a set of altered pathways and a greater number of downregulated than upregulated genes during MSC transformation, in part due to the expression of many untranslated RNAs in MSC. Microarray results were validated by qRT-PCR and protein detection. Conclusions/Significance. In our model, the transformation process takes place through two sequential steps; first MSC bypass senescence by upregulating c-myc and repressing p16 levels. The cells then bypass cell crisis with acquisition of telomerase activity, Ink4a/Arf locus deletion and Rb hyperphosphorylation. Other transformation-associated changes include modulation of mitochondrial metabolism, DNA damage-repair proteins and cell cycle regulators. In this work we have characterized the molecular mechanisms implicated in TMC generation and we propose a two-stage model by which a human MSC becomes a tumor cell

    4to. Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad. Memoria académica

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    Este volumen acoge la memoria académica de la Cuarta edición del Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad, CITIS 2017, desarrollado entre el 29 de noviembre y el 1 de diciembre de 2017 y organizado por la Universidad Politécnica Salesiana (UPS) en su sede de Guayaquil. El Congreso ofreció un espacio para la presentación, difusión e intercambio de importantes investigaciones nacionales e internacionales ante la comunidad universitaria que se dio cita en el encuentro. El uso de herramientas tecnológicas para la gestión de los trabajos de investigación como la plataforma Open Conference Systems y la web de presentación del Congreso http://citis.blog.ups.edu.ec/, hicieron de CITIS 2017 un verdadero referente entre los congresos que se desarrollaron en el país. La preocupación de nuestra Universidad, de presentar espacios que ayuden a generar nuevos y mejores cambios en la dimensión humana y social de nuestro entorno, hace que se persiga en cada edición del evento la presentación de trabajos con calidad creciente en cuanto a su producción científica. Quienes estuvimos al frente de la organización, dejamos plasmado en estas memorias académicas el intenso y prolífico trabajo de los días de realización del Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad al alcance de todos y todas

    Enfermeras de cine: cómo son y qué hacen en la gran pantalla

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    El cine nos educa sentimental y emocionalmente sin que nos demos cuenta, porque utiliza los clichés y los estereotipos que forman parte del imaginario colectivo. Los profesionales de la Enfermería son objeto de estereotipos, es decir, de imágenes común y acríticamente aceptadas por la sociedad. En este texto se destacan seis estereotipos de enfermeras: religiosa, heroica, objeto sexual, secretaria obediente, diabólica y, finalmente, profesional; también se comenta cómo el cine muestra al enfermero. Para ello se han seleccionado algunos títulos de películas que ilustran las características de cada estereotipo. Se concluye que es esencial cuestionar y denunciar por parte de las asociaciones e instituciones profesionales el mal uso de la imagen de la enfermera, ya que el signo positivo o negativo de las imágenes tiene consecuencias no solo en la percepción de los pacientes y usuarios, sino también en la asignación de recursos y en las políticas sanitarias

    Combined 5-FU and ChoKα inhibitors as a new alternative therapy of colorectal cancer: Evidence in human tumor-derived cell lines and mouse xenografts

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    This is an open-access article distributed under the terms of the Creative Commons Attribution License.[Background]: Colorectal cancer (CRC) is the third major cause of cancer related deaths in the world. 5-fluorouracil (5-FU) is widely used for the treatment of colorectal cancer but as a single-agent renders low response rates. Choline kinase alpha (ChoKα), an enzyme that plays a role in cell proliferation and transformation, has been reported overexpressed in many different tumors, including colorectal tumors. ChoKα inhibitors have recently entered clinical trials as a novel antitumor strategy. [Methodology/Principal Findings]: ChoKα specific inhibitors, MN58b and TCD-717, have demonstrated a potent antitumoral activity both in vitro and in vivo against several tumor-derived cell line xenografts including CRC-derived cell lines. The effect of ChoKα inhibitors in combination with 5-FU as a new alternative for the treatment of colon tumors has been investigated both in vitro in CRC-tumour derived cell lines, and in vivo in mouse xenografts models. The effects on thymidilate synthase (TS) and thymidine kinase (TK1) levels, two enzymes known to play an essential role in the mechanism of action of 5-FU, were analyzed by western blotting and quantitative PCR analysis. The combination of 5-FU with ChoKα inhibitors resulted in a synergistic effect in vitro in three different human colon cancer cell lines, and in vivo against human colon xenografts in nude mice. ChoKα inhibitors modulate the expression levels of TS and TK1 through inhibition of E2F production, providing a rational for its mechanism of action. [Conclusion/Significance ]: Our data suggest that both drugs in combination display a synergistic antitumoral effect due to ChoKα inhibitors-driven modulation of the metabolization of 5-FU. The clinical relevance of these findings is strongly supported since TCD-717 has recently entered Phase I clinical trials against solid tumors. © 2013 de la Cueva et al.This work has been funded by the following grants: Comunidad de Madrid (S-BIO/0280/2006 and S2010/BMD-2326), Ministerio de Ciencia e Innovación (SAF2008-03750, SAF2011-29699, RD06-0020-0016 and RD12/0036/0019) and EU #259737.Peer Reviewe
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