995 resultados para ECTATOMMA-RUIDUM ROGER


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Estudi retrospectiu per analitzar la incidència, factors de risc i tractament de la hemoglobinuria macroscòpica i oliguria després del tractament de malformacions venoses amb escleroteràpia. Un total de 475 procediments es van realitzar en 131 malalts usant etanol, sulfat tetradecil sòdic o ambdos. Hemoglobinuria temporal es va donar després del 34% de procediments i el 57% d’aquests es van asociar amb oliguria temporal. Aquest risc augmenta amb el increment de dosis. La resolució de la hemoglobinuria i oliguria va ser satisfactòria en tots els malalts. El risc d’hemoglobinuria augmenta a les malformacions que afecten les extremitats inferiors i a les de localitzacions mútiples.

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SUMMARYThe innate immune system plays a central role in host defenses against invading pathogens. Innate immune cells sense the presence of pathogens through pattern recognition receptors that trigger intracellular signaling, leading to the production of pro-inflammatory mediators like cytokines, which shape innate and adaptive immune responses. Both by excess and by default inflammation may be detrimental to the host. Indeed, severe sepsis and septic shock are lethal complications of infections characterized by a dysregulated inflammatory response.In recent years, members of the superfamily of histone deacetylases have been the focus of great interest. In mammals, histone deacetylases are broadly classified into two main subfamilies comprising histone deacetylases 1-11 (HDAC1-11) and sirtuins 1-7 (SIRT1-7). These enzymes influence gene expression by deacetylating histones and numerous non-histone proteins. Histone deacetylases have been involved in the development of oncologic, metabolic, cardiovascular, neurodegenerative and autoimmune diseases. Pharmacological modulators of histone deacetylase activity, principally inhibitors, have been developed for the treatment of cancer and metabolic diseases. When we initiated this project, several studies suggested that inhibitors of HDAC 1-11 have anti-inflammatory activity. Yet, their influence on innate immune responses was largely uncharacterized. The present study was initiated to fill in this gap.In the first part of this work, we report the first comprehensive study of the effects of HDAC 1- 11 inhibitors on innate immune responses in vitro and in vivo. Strikingly, expression studies revealed that HDAC1-11 inhibitors act essentially as negative regulators of basal and microbial product- induced expression of critical immune receptors and antimicrobial products by mouse and human innate immune cells like macrophages and dendritic cells. Furthermore, we describe a new molecular mechanism whereby HDAC1-11 inhibitors repress pro-inflammatory cytokine expression through the induction of the expression and the activity of the transcriptional repressor Μί-2β. HDAC1-11 inhibitors also impair the potential of macrophages to engulf and kill bacteria. Finally, mice treated with an HDAC inhibitor are more susceptible to non-severe bacterial and fungal infection, but are protected against toxic and septic shock. Altogether these data support the concept that HDAC 1-11 inhibitors have potent anti-inflammatory and immunomodulatory activities in vitro and in vivo.Macrophage migration inhibitory factor (MIF) is a pro-inflammatory cytokine that plays a central role in innate immune responses, cell proliferation and oncogenesis. In the second part of this manuscript, we demonstrate that HDAC1-11 inhibitors inhibit MIF expression in vitro and in vivo and describe a novel molecular mechanism accounting for these effects. We propose that inhibition of MIF expression by HDAC 1-11 inhibitors may contribute to the antitumorigenic and anti-inflammatory effects of these drugs.NAD+ is an essential cofactor of sirtuins activity and one of the major sources of energy within the cells. Therefore, sirtuins link deacetylation to NAD+ metabolism and energy status. In the last part of this thesis, we report preliminary results indicating that a pharmacological inhibitor of SIRT1-2 drastically decreases pro-inflammatory cytokine production (RNA and protein) and interferes with MAP kinase intracellular signal transduction pathway in macrophages. Moreover, administration of the SIRT1-2 inhibitor protects mice from lethal endotoxic shock and septic shock.Overall, our studies demonstrate that inhibitors of HDAC1-11 and sirtuins are powerful anti-inflammatory molecules. Given their profound negative impact on the host antimicrobial defence response, these inhibitors might increase the susceptibility to opportunistic infections, especially in immunocompromised cancer patients. Yet, these inhibitors might be useful to control the inflammatory response in severely ill septic patients or in patients suffering from chronic inflammatory diseases.

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Aquesta recerca explora el fenomen de l'agressivitat originada en entorns tancats, com ho són els centres educatius de Justícia Juvenil de Catalunya. Aquest, però, és només un dels àmbits on la major part de les eines que s'han emprat poden ser d'utilitat. És possible estendre el camp d'aplicació a altres entorns de compliment de mesures o de tractament en règim tancat. L'ús d'eines de valoració estructurades pot ser complementat amb l'obtenció sistemàtica d'informació sobre els comportaments agressius, la qual cosa permet que els equips professionals disposin de més informació útil en termes de prevenció d'incidents. No obstant això, un aspecte rellevant en la prevenció de les agressions és la relació que un individu estableix amb la resta de persones del seu entorn. En aquest cas, s'ha incorporat l'Anàlisi de Xarxes Socials per obtenir indicadors des d'una perspectiva relacional a fi d’efectuar-ne una anàlisi conjunta amb característiques personals i de risc. Els resultats obtinguts permeten valorar aquests aspectes relacionals associats a les agressions que es van produir al Centre Educatiu durant el treball de camp. A més, la utilització d'altres eines permet caracteritzar aquestes agressions com a relativament poc greus i poc freqüents. Pel que fa als resultats de les eines de valoració de risc, s'han obtingut indicis que permeten afirmar la relació d'aquestes eines amb les agressions posteriors, motiu pel qual és factible considerar-les també com a eines vàlides per a la predicció d'incidents.

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La hipótesis de la compensación plantea la posibilidad de que los individuos que viven en centros urbanos densos tengan una mayor propensión a disponer de una segunda residencia y/o llevar a cabo desplazamientos más frecuentes hacia destinos más alejados durante los fines de semana y las vacaciones que los individuos que viven en zonas poco densas. En este contexto, no está claro cuál es el efecto neto de la densidad en términos ambientales. En esta investigación se contrasta la hipótesis de la compensación en la Región Metropolitana de Barcelona utilizando como indicador de impacto ambiental la huella ecológica de la movilidad y de la vivienda. Los resultados obtenidos rechazan la hipótesis de la compensación en un sentido fuerte, pero se detecta la existencia de un nivel máximo de densidad a partir del cual ejerce un impacto de signo positivo.

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OBJECTIVE: To investigate the involvement of the nuclear factor (NF)-kappaB in the interleukin (IL)-1 beta-mediated macrophage migration inhibitory factor (MIF) gene activation. DESIGN: Prospective study. SETTING: Human reproduction research laboratory. PATIENT(S): Nine women with endometriotic lesions. INTERVENTION(S): Endometriotic lesions were obtained during laparoscopic surgery. MAIN OUTCOME MEASURE(S): The MIF protein secretion was analyzed by ELISA, MIF mRNA expression by quantitative real-time polymerase chain reaction (PCR), NF-kappaB translocation into the nucleus by electrophoresis mobility shift assay, I kappaB phosphorylation and degradation by Western blot, and human MIF promoter activity by transient cell transfection. RESULT(S): This study showed a significant dose-dependent increase of MIF protein secretion and mRNA expression, the NF-kappaB translocation into the nucleus, I kappaB phosphorylation, I kappaB degradation, and human MIF promoter activity in endometriotic stromal cells in response to IL-1 beta. Curcumin (NF-kappaB inhibitor) significantly inhibited all these IL-1 beta-mediated effects. Analysis of the activity of deletion constructs of the human MIF promoter and a computer search localized two putative regulatory elements corresponding to NF-kappaB binding sites at positions -2538/-2528 bp and -1389/-1380 bp. CONCLUSION(S): This study suggests the involvement of the nuclear transcription factor NF-kappaB in MIF gene activation in ectopic endometrial cells in response to IL-1 beta and identifies a possible pathway of endometriosis-associated inflammation and ectopic cell growth.

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COMPSs és un entorn de programació paral·lela desenvolupat per BSC-CNS. Aquest projecte busca estendre aquest entorn per tal de dotar-lo de funcionalitats inicialment no suportades. Aquest conjunt d’extensions radiquen principalment en la implementació de mecanismes que permetin incrementar la flexibilitat, robustesa i polivalència del sistema.

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For more than a quarter of a century, macrophage migration inhibitory factor (MIF) has been a mysterious cytokine. In recent years, MIF has assumed an important role as a pivotal regulator of innate immunity. MIF is an integral component of the host antimicrobial alarm system and stress response that promotes the pro-inflammatory functions of immune cells. A rapidly increasing amount of literature indicates that MIF is implicated in the pathogenesis of sepsis, and inflammatory and autoimmune diseases, suggesting that MIF-directed therapies might offer new treatment opportunities for human diseases in the future.

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El TFC consisteix en el disseny i la implementació d'un sistema que, a partir d'una base de dades qualsevol, obtingui la informació proporcionada pels usuaris autoritzats mitjançant missatges SMS i la posi en una cua per a ser enviada via SMS també per un programari extern.

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This publication provides a snapshot of the ageing research landscape across the island of Ireland.�� By 2030 one in five people on the island of Ireland will be 65 years or older. As the population ages research into ageing and older people is vital to help plan for healthier and more active later lives for everyone. Academic institutions across the island are engaged in a wide range of research programmes and projects relating to ageing. ��Ageing is increasingly viewed as a research priority for these institutions and the island of Ireland is gaining recognition as a place of excellence for ageing research. This publication provides an overview of research relating to ageing being carried out in their various third level institutions in Ireland, North and South. ��It combined these profiles with information about a selection of major collaborative research projects and CARDI’s research funding activities to produce an update of a previous directory published in 2010. A Picture of Ageing Research 2014 illustrates the continued growth and quality of research being carried out in a wide range of disciplines by a growing community of researcher in Ireland, North and South. CARDI Director Dr Roger O’Sullivan says, “We are delighted to present this publication which captures the innovative and high quality nature of ageing research being carried out by researchers in Ireland, North and South. ��Ageing research is vital to providing a valuable evidence base for building a better future for our ageing populations”.

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Purpose: In primary prevention of cardiovascular disease (CVD), it is accepted that the intensity of risk factor treatment should be guided by the magnitude of absolute risk. Risk factors tools like Framingham risk score (FHS) or noninvasive atherosclerosis imaging tests are available to detect high risk subjects. However, these methods are imperfect and may misclassify a large number of individuals. The purpose of this prospective study was to evaluate whether the prediction of future cardiovascular events (CVE) can be improved when subclinical imaging atherosclerosis (SCATS) is combined with the FRS in asymptomatic subjects. Methods: Overall, 1038 asymptomatic subjects (413 women, 625 men, mean age 49.1±12.8 years) were assessed for their cardiovascular risk using the FRS. B-mode ultrasonography on carotid and femoral arteries was performed by two investigators to detect atherosclerotic plaques (focal thickening of intima-media > 1.2 mm) and to measure carotid intima-media thickness (C-IMT). The severity of SCATS was expressed by an ATS-burden Score (ABS) reflecting the number of the arterial sites with >1 plaques (range 0-4). CVE were defined as fatal or non fatal acute coronary syndrome, stroke, or angioplasty for peripheral artery disease. Results: during a mean follow-up of 4.9±3.1 years, 61 CVE were recorded. Event rates the rate of CVE increased significantly from 2.7% to 39.1% according to the ABS (p<0.001) and from 4% to 24.6% according to the quartiles of C-IMT. Similarly, FRS predicted CVE (p<0.001). When computing the angiographic markers of SCATS in addition of FRS, we observed an improvement of net reclassification rate of 16.6% (p< 0.04) for ABS as compared to 5.5% (p = 0.26) for C-IMT. Conclusion: these results indicate that the detection of subjects requiring more attention to prevent CVE can be significantly improved when using both FRS and SCATS imaging.

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En aquest projecte s'ha desenvolupat un sistema de comunicació (xat) segur.

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Programari per a la gestió d'idees innovadores en el marc d'una empresa o col·lectiu. Ofereix unasolució senzilla que permet a qualsevol membre del col·lectiu aportar noves idees iparticipar activament en el procés de selecció d'idees. Per al desenvolupament de l'aplicació s'ha utilitzat la tecnologia .NET.

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El present Treball de Fi de Carrera es troba emmarcat dins de l'àrea de Xarxes de Computadors i consisteix, bàsicament, a fer una aplicació gràfica, en entorn GNU, que permeti analitzar el tràfic d'una xarxa informàtica. És el que s'anomena un Sniffer.

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A report on the potential to transform disadvantaged communities in Lisburn through early intervention.This feasibility study and consultation was commissioned from Barnardo's with funding from the Public Health Agency, by Resurgam Development Trust representing community and youth organisations in disadvantaged communities in the City of Lisburn, including Old Warren, Hilden, Hillhall, Tonagh, Knockmore and Lagan Valley. It involved consultations with a very wide range of community organisations, schools and professional agencies working in Lisburn. It also included research into: the needs of the target areas; the desired outcomes for children and young people; the evidence and arguments for taking an early intervention approach to the issues; the public policy context and the extent that it might support an early intervention approach; and the evidence of the potential impact of delivering particular proven programmes in the target areas of Lisburn. Researched and written by Dr Roger Courtney.