531 research outputs found

    The use of sports psychology consultants in elite sports teams

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    This study investigates the use of psychology services in teams of the top division Spanish leagues of handball, basketball, volleyball, indoor soccer, soccer and field hockey. Personal interviews were conducted to determine the composition of the multidisciplinary teams. The response rate was 81.8% (77 of 94). Though most teams have different professionals employed on a full-time basis, only 15.6% of these teams have a sport psychologist. Moreover, only three teams have a full-time sports psychologist. These results indicate that, compared to other professional services, managers and/or coaches do not perceive the need for psychological services. We discarded the hypothesis that most of the teams do not hire psychologists due to financial reasons. Sport psychology associations should reinforce the importance of the psychologist to enhance sports performance

    Base de datos multicéntrica de hemorragia subaracnoidea espontánea del Grupo de Trabajo de Patología Vascular de la Sociedad Española de Neurocirugía: presentación,criterios de inclusión y desarrollo de una base de datos en internet = Spontaneous Subarachnoid Haemorrhage multicenter database from the Group for the Study of Vascular Pathology of the Spanish Society for Neurosurgery: Presentation, inclusion criteria and development of an internet-based registry

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    Introducción. La hemorragia subaracnoidea (HSA) continúa siendo una de las enfermedades de interés neuroquirúrgico de más alta morbilidad y mortalidad. Su estudio es clave a la hora de mejorar la atención de estos enfermos en nuestro medio. Con este fin el Grupo de Trabajo de Patología Vascular de la SENEC decidió la creación de una base de datos multicéntrica para su estudio. Material y métodos. Se incluyen en esta base de datos todos los casos de hemorragia subaracnoidea espontánea ingresados en los centros participantes de forma prospectiva desde Noviembre del año 2004 hasta Noviembre del 2007. Se decidieron de forma consensuada los campos a recoger incluyendo edad, antecedentes personales, características clínicas, características radiológicas y del aneurisma, tipo de tratamiento y complicaciones de la enfermedad, evolución según la escala de evolución de Glasgow (GOS) al alta y a los seis meses así como el resultado angiográfico del tratamiento. Todos los campos se recogieron en un formulario rellenable a través de una página web segura. Resultados. En los tres años en los que ha estado activa la base se han recogido un total de 1149 casos de HSA espontánea recogidos por 14 centros participantes. Se ha estimado que es necesario aproximadamente un tiempo de 3.4 minutos para rellenar cada caso. En cuanto a sus características generales la serie es similar a otras series hospitalarias no seleccionadas. La edad media de los enfermos incluidos es de unos 55 años y la relación mujer:hombre 4:3. En cuanto a la gravedad del sagrado inicial un 32% de los enfermos se encontraba en mal grado clínico (WFNS = 4 ó 5). El 5% de los pacientes fallecieron antes de realizarse una angiografía que confirmara el origen aneurismático del sangrado. Se confirmó el origen aneurismático en el 76% de los pacientes mientras que en el 19% no se encontró ninguna lesión vascular responsable del sangrado, siendo clasificados como HSA idiopática. En los pacientes en los que se detectó un aneurisma su tratamiento fue endovascular en el 47% de los casos, quirúrgico en el 39, mixto en el 3% y no recibieron tratamiento de su aneurisma el 11% de los pacientes por fallecimiento precoz. En cuanto a su evolución, la mortalidad global de la serie se sitúa en el 22%. Sólo el 40% de los enfermos con HSA aneurismática presentaron una buena evolución (GOS=5). Conclusiones. La HSA espontánea continúa siendo una enfermedad con alta morbilidad y mortalidad. Esta base de datos puede ser un instrumento para conocer mejor sus características en nuestro medio y mejorar sus resultados, ya que se trata de una serie multicéntrica hospitalaria no seleccionada. Sería pues recomendable que esta base constituyera el germen de un registro nacional de HSA espontánea. Introduction. Subarachnoid haemorrhage is one of the most severe neurosurgical diseases. Its study is crucial for improving the care of these patients in our environment. With this goal the Group for the Study of Neurovascular Pathology of the Spanish Society for Neurosurgery (SENEC) decided to create a multicenter registry for the study of this disease. Materials and methods. In this database we have prospectively included all cases with spontaneous subarachnoid haemorrhage admitted to the participant hospitals from November 2004 to November 2007. The fields to be included in the database were selected by consensus, including age, past medical history, clinical characteristics at admission, radiological characteristics including presence or absence of an aneurysm and its size and location, type and complications of the aneurysm treatment, outcome assessed by the Glasgow Outcome Scale (GOS) at discharge and six months after the bleeding as well as the angiographic result of the aneurysm treatment. All fields were collected by means of an electronic form posted in secure web page. Results. During the three years of study a total of 1149 patients have been included by 14 Hospitals. The time needed to fill in a patient in the registry is approximately 3.4 minutes. This series of patients with spontaneous SAH is similar to other non-selected in-hospital series of SAH. The mean age of the patients is 55 years and there is a 4:3 female to male ratio. In relation to the severity of the bleeding 32% of the patients were in poor clinical grade at admission (WFNS 4 or 5). 5% of the patients died before angiography could be performed. An aneurysm was confirmed as the origin of the bleeding in 76% of the patients (aSAH), while in 19% of the patients no lesion was found in the angiographic studies and were thus classified as idiopathic subarachnoid hemorrhage (ISAH). Of those patients with aSAH, 47% were treated endovascularly, 39% surgically, 3% received a combined treatment and 11% did not receive any treatment for their aneurysm because of early death. Regarding outcome, there is a 22% mortality in the series. Only 40% of the patients with aSAH reached a good outcome at discharge (GOS = 5). Conclusions. Spontaneous SAH continues to be a disease with high morbidity and mortality. This database can be an ideal instrument for improving the knowledge about this disease in our environment and to achieve better results. It would be desirable that this database could in the future be the origin of a national registry of spontaneous SAH

    Entrenamiento y calidad de vida en la adolescencia tardía

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    El objetivo del estudio es determinar en ambos sexos durante la adolescencia tardía las asociaciones entre la calidad de vida relacionada con la salud (CVRS) y la práctica de deporte, la práctica de deporte competitivo, el nivel de competición, el tipo de competición, el tipo de deporte, el metabolismo y el lugar de entrenamiento. En relación a la metodología, evaluamos en 2.831 adolescentes (1.315 chicas) de 16-19 años la CVRS con el cuestionario KIDSCREEN-52. 413 sujetos eran inactivos, 1.008 hacían deporte no competitivo, 649 competían a nivel local/regional y 761 a nivel nacional/internacional en modalidades incluidas en el programa de los JJOO de verano. Categorizamos a los deportistas que compiten según el tipo de competición (individual, colectivo), tipo de deporte (continuo, técnico, equipo, gimnástico, combate, potencia, raqueta), metabolismo predominante (aláctico, láctico, aeróbico, mixto) y lugar de entrenamiento (aire libre, sala). Respecto a los resultados, las chicas mostraron peor CVRS que los chicos. Los adolescentes inactivos mostraron peor CVRS que los que realizaban deporte no competitivo. Los adolescentes que realizaban deporte no competitivo mostraron peor CVRS que los que realizaban deporte competitivo. Los adolescentes que competían a nivel nacional/internacional tuvieron mejor CVRS que los que competían a nivel local/regional. El tipo de competición, el tipo de deporte, el metabolismo predominante y el lugar de entrenamiento no se asoció con la CVRS.Finalmente podemos concluir que en ambos sexos, durante la adolescencia tardía, la práctica de deporte, especialmente a un elevado nivel de competición se asocia con una mejor CVRS, sin influencia del tipo de competición, tipo de deporte, metabolismo predominante y lugar de entrenamiento.<br /

    Mega mercado municipal en Sullana

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    En el presente trabajo se expone el planificación y principio del proyecto “Mega Mercado Municipal de Sullana”, ubicado Sullana, Piura. Este proyecto parte con el estudio y análisis de la problemática de la zona, la cual se basa principalmente, en la necesidad de los comerciantes de tener un lugar de calidad para poder ofrecer sus productos a los consumidores. Para el desarrollo del proyecto se realizo varias visitas de campo para analizar los posibles usuarios y/o beneficiarios para saber sus necesidades y funciones a realizar en el proyecto, ademas de zonas y sub zonas a desarrollar en el proyecto; posteriormente procesaremos la información obtenida mediante cuadros y estadisticas y datos reales sobre los números de puestos comerciales formales y el número de comerciantes informales de cada zona y subzona a la que pertenecen cada uno, tratando de cumplir con la demanda requerida y ofertar mas puestos requeridos para un futuro crecimiento de número de comerciantes en el mercado. Tambien realizamos un analis de casos analogos de mercados nacionales e internacional los cuales funcionan exitosamente, para tener un conocimiento previo a diseñar nuestro proyecto y asi entender el funcionamiento del mercado y sus respectivas zonas. Ya con los datos obtenidos en la investigación pasamos a realizar nuestra propuesta de Mega Mercado Municipal de Sullana, basandonos en las normativas del Reglamento Nacional de Edificaciones y los parametros Urbanisticos de la ciudad, para asi satisfacer las necesidades demandadas por los usuarios para poder brindar mejor la compra y venta de productos y a la vez la calidad del servicio mejorando la economía del distrito y provincia. Por último, el proyecto arquitectonico se ha realizado en paralelo con el análisis estructural, instalaciones electricas, instalaciones sanitarias, condiciones de seguridad normadas e instalaciones mecánicas.In the present work the planning and principle of the project “Mega Mercado Municipal de Sullana”, located in Sullana, Piura, are exposed. This project starts with the study and analysis of the problems of the area, which is mainly based on the need for merchants to have a quality place to offer their products to consumers. For the development of the project, several field visits were made to analyze the possible users and / or beneficiaries to know their needs and functions to be carried out in the project, in addition to the zones and sub-zones to be developed in the project; Subsequently, we will process the information obtained through tables and statistics and real data on the numbers of formal business positions and the number of informal merchants in each zone and sub-zone to which each one belongs, trying to meet the required demand and offer more positions required to a future growth in the number of merchants in the market. We also carry out an analysis of analog cases of national and international markets which work successfully, to have prior knowledge to design our project and thus understand the operation of the market and its respective areas. With the data obtained in the research, we now carry out our proposal for the Sullana Municipal Mega Market, based on the regulations of the National Building Regulations and the urban parameters of the city, in order to satisfy the needs demanded by users in order to better provide the purchase and sale of products and at the same time the quality of the service improving the economy of the district and province. Finally, the architectural project has been carried out in parallel with the structural analysis, electrical installations, sanitary installations, regulated security conditions and mechanical installations.Tesi

    Serum biomarkers for the prediction of hepatocellular carcinoma

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    Hepatocellular carcinoma (HCC) is a leading cause of global cancer death. Major etiologies of HCC relate to chronic viral infections as well as metabolic conditions. The survival rate of people with HCC is very low and has been attributed to late diagnosis with limited treatment options. Combining ultrasound and the biomarker alpha-fetoprotein (AFP) is currently one of the most widely used screening combinations for HCC. However, the clinical utility of AFP is controversial, and the frequency and operator-dependence of ultrasound lead to a variable degree of sensitivity and specificity across the globe. In this review, we summarize recent developments in the search for non-invasive serum biomarkers for early detection of HCC to improve prognosis and outcome for patients. We focus on tumor-associated protein markers, immune mediators (cytokines and chemokines), and micro-RNAs in serum or circulating extracellular vesicles and examine their potential for clinical application.Fil: Debes, José D.. Erasmus MC Rotterdam; Países Bajos. University of Minnesota; Estados UnidosFil: Romagnoli, Pablo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación Médica Mercedes y Martín Ferreyra. Grupo Vinculado Centro de Investigación en Medicina Traslacional Severo R. Amuchástegui - Cimetsa | Universidad Nacional de Córdoba. Instituto de Investigación Médica Mercedes y Martín Ferreyra. Grupo Vinculado Centro de Investigación en Medicina Traslacional Severo R. Amuchástegui - Cimetsa | Instituto de Investigación Médica Mercedes y Martín Ferreyra. Instituto de Investigación Médica Mercedes y Martín Ferreyra. Grupo Vinculado Centro de Investigación en Medicina Traslacional Severo R. Amuchástegui - Cimetsa; Argentina. Instituto Universitario de Ciencias Biomédicas de Córdoba; ArgentinaFil: Prieto, Jhon. Centro de Enfermedades Hepáticas y Digestivas; ColombiaFil: Arrese, Marco. Pontificia Universidad Católica de Chile; ChileFil: Mattos, Angelo Z.. Universidade Federal de Ciencias Da Saúde de Porto Alegre; BrasilFil: Boonstra, André. Erasmus MC Rotterdam; Países Bajo

    Coffee Compounds Protection Against Lipotoxicity Is Associated with Lipid Droplet Formation and Antioxidant Response in Primary Rat Hepatocytes

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    Metabolic dysfunction associated with steatotic liver disease (MASLD) is the result of disturbed lipid metabolism. In MASLD, the accumulation of free fatty acids (FFAs) in hepatocytes causes lipotoxicity mediated by oxidative stress. Coffee compounds are known for their beneficial effects in MASLD; however, the mechanisms still need to be further explored. The aim of this study was to elucidate the protective mechanisms of coffee compounds against palmitate-induced lipotoxicity in primary hepatocytes. Methods: Primary hepatocytes were isolated from male Wistar rats and treated with palmitate (1 mmol/L) in combination with caffeine (CF: 1 mmol/L) or chlorogenic acid (CGA: 5 µmol/L). Mitochondrial ROS production, palmitate-induced necrosis, antioxidant response, ER stress markers and lipid droplet (LD) formation were assessed. Monoacylglycerols 2-SG (2-Stearolylglycerol), 2-OG (2-Oleoylglycerol) and SCD-1 (Stearoyl-CoA Desaturase 1) inhibitors were used to modulate LD formation. LD formation in steatotic Zucker rat hepatocytes was also investigated. Results: CF and CGA prevented palmitate-induced cell death and reduced ROS production. CF and CGA induced the antioxidant response, especially HO-1 expression, but had no significant effect on ER stress markers. CF and CGA increased LD formation in palmitate-treated cells. This effect was significantly reduced by 2-SG and SCD-1 inhibitors but enhanced by 2-OG. Lipid droplets were associated with lower palmitate toxicity and reduced ROS production. Conclusions: CF and CGA protect hepatocytes from lipotoxicity via modulation of the antioxidant response and enhance lipid droplet formation via an SCD-1-dependent mechanism. Oxidative stress-related toxicity in hepatocytes can be prevented by enhancing LD formation.</p

    Extracellular Vesicles in NAFLD/ALD:From Pathobiology to Therapy

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    In recent years, knowledge on the biology and pathobiology of extracellular vesicles (EVs) has exploded. EVs are submicron membrane-bound structures secreted from different cell types containing a wide variety of bioactive molecules (e.g., proteins, lipids, and nucleic acids (coding and non-coding RNA) and mitochondrial DNA). EVs have important functions in cell-to-cell communication and are found in a wide variety of tissues and body fluids. Better delineation of EV structures and advances in the isolation and characterization of their cargo have allowed the diagnostic and therapeutic implications of these particles to be explored. In the field of liver diseases, EVs are emerging as key players in the pathogenesis of both nonalcoholic liver disease (NAFLD) and alcoholic liver disease (ALD), the most prevalent liver diseases worldwide, and their complications, including development of hepatocellular carcinoma. In these diseases, stressed/damaged hepatocytes release large quantities of EVs that contribute to the occurrence of inflammation, fibrogenesis, and angiogenesis, which are key pathobiological processes in liver disease progression. Moreover, the specific molecular signatures of released EVs in biofluids have allowed EVs to be considered as promising candidates to serve as disease biomarkers. Additionally, different experimental studies have shown that EVs may have potential for therapeutic use as a liver-specific delivery method of different agents, taking advantage of their hepatocellular uptake through interactions with specific receptors. In this review, we focused on the most recent findings concerning the role of EVs as new structures mediating autocrine and paracrine intercellular communication in both ALD and NAFLD, as well as their potential use as biomarkers of disease severity and progression. Emerging therapeutic applications of EVs in these liver diseases were also examined, along with the potential for successful transition from bench to clinic

    MetALD: New Perspectives on an Old Overlooked Disease

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    Metabolic dysfunction-associated steatotic liver disease (MASLD) and alcohol-associated liver disease (ALD) are the major contributors to the liver disease burden globally. The rise in these conditions is linked to obesity, type 2 diabetes, metabolic syndrome and increased alcohol consumption. MASLD and ALD share risk factors, pathophysiology and histological features but differ in their thresholds for alcohol use, and the ALD definition does not require the presence of metabolic dysfunction. A recent multi-society consensus overhauled the nomenclature of liver steatosis and introduced the term MetALD to describe patients with metabolic dysfunction who drink more than those with MASLD and less than those with ALD. This new terminology aims to enhance the understanding and management of liver disease but poses challenges, such as the need to accurately measure alcohol consumption in research and clinical practice settings. Recent studies show that MetALD has significant implications for patient management, as it is associated with increased mortality risks and more severe liver outcomes compared to MASLD alone. MetALD patients face increased risks of liver disease progression, cancer and cardiovascular disease. The diagnosis of MetALD involves the adequate quantification of alcohol use through standardised questionnaires and/or biomarkers as well as proper assessment of liver disease stage and progression risk using non-invasive tools including serologic markers, imaging, elastography techniques and genetic testing. Effective management requires addressing both metabolic and alcohol-related factors to improve outcomes. This review intends to provide a comprehensive overview of MetALD, covering pathogenesis, potential diagnostic approaches, management strategies and emerging therapies

    Chemical hypoxia induces pro-inflammatory signals in fat-laden hepatocytes and contributes to cellular crosstalk with Kupffer cells through extracellular vesicles

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    BACKGROUND: Obstructive sleep apnea syndrome (OSAS) is associated to intermittent hypoxia (IH) and is an aggravating factor of non-alcoholic fatty liver disease (NAFLD). We investigated the effects of hypoxia in both in vitro and in vivo models of NAFLD. METHODS: Primary rat hepatocytes treated with free fatty acids (FFA) were subjected to chemically induced hypoxia (CH) using the hypoxia-inducible factor-1 alpha (HIF-1α) stabilizer cobalt chloride (CoCl2). Triglyceride (TG) content, mitochondrial superoxide production, cell death rates, cytokine and inflammasome components gene expression and protein levels of cleaved caspase-1 were assessed. Also, Kupffer cells (KC) were treated with conditioned medium (CM) and extracellular vehicles (EVs) from hypoxic fat-laden hepatic cells. The choline deficient L-amino acid defined (CDAA)-feeding model used to assess the effects of IH on experimental NAFLD in vivo. RESULTS: Hypoxia induced HIF-1α in cells and animals. Hepatocytes exposed to FFA and CoCl2 exhibited increased TG content and higher cell death rates as well as increased mitochondrial superoxide production and mRNA levels of pro-inflammatory cytokines and of inflammasome-components interleukin-1β, NLRP3 and ASC. Protein levels of cleaved caspase-1 increased in CH-exposed hepatocytes. CM and EVs from hypoxic fat-laden hepatic cells evoked a pro-inflammatory phenotype in KC. Livers from CDAA-fed mice exposed to IH exhibited increased mRNA levels of pro-inflammatory and inflammasome genes and increased levels of cleaved caspase-1. CONCLUSION: Hypoxia promotes inflammatory signals including inflammasome/caspase-1 activation in fat-laden hepatocytes and contributes to cellular crosstalk with KC by release of EVs. These mechanisms may underlie the aggravating effect of OSAS on NAFLD. [Abstract word count: 257]
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