9 research outputs found

    CD40: Novel Association with Crohn's Disease and Replication in Multiple Sclerosis Susceptibility

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    Background: A functional polymorphism located at 21 from the start codon of the CD40 gene, rs1883832, was previously reported to disrupt a Kozak sequence essential for translation. It has been consistently associated with Graves’ disease risk in populations of different ethnicity and genetic proxies of this variant evaluated in genome-wide association studies have shown evidence of an effect in rheumatoid arthritis and multiple sclerosis (MS) susceptibility. However, the protective allele associated with Graves’ disease or rheumatoid arthritis has shown a risk role in MS, an effect that we aimed to replicate in the present work. We hypothesized that this functional polymorphism might also show an association with other complex autoimmune condition such as inflammatory bowel disease, given the CD40 overexpression previously observed in Crohn’s disease (CD) lesions. Methodology: Genotyping of rs1883832C.T was performed in 1564 MS, 1102 CD and 969 ulcerative colitis (UC) Spanish patients and in 2948 ethnically matched controls by TaqMan chemistry. Principal Findings: The observed effect of the minor allele rs1883832T was replicated in our independent Spanish MS cohort [p= 0.025; OR (95% CI)= 1.12 (1.01–1.23)]. The frequency of the minor allele was also significantly higher in CD patients than in controls [p= 0.002; OR (95% CI)= 1.19 (1.06–1.33)]. This increased predisposition was not detected in UC patients [p= 0.5; OR (95% CI)= 1.04 (0.93–1.17)]. Conclusion: The impact of CD40 rs1883832 on MS and CD risk points to a common signaling shared by these autoimmune conditions.Peer reviewe

    Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

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    Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

    Memorias: primer encuentro de la RED internacional de investigaciĂłn en el marco de la X Jornada de InvestigaciĂłn 2019

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    ERII 2019 es el Primer Encuentro de la Red Internacional Universitaria para el Desarrollo de la InvestigaciĂłn y las Publicaciones CientĂ­ficas, conformada por la Universidad CatĂłlica de Colombia, la Universidad CatĂłlica de Salta (Argentina), la Universidad de Monterrey (MĂ©xico) y la Universidad Gabriela Mistral (Chile). Esta red tiene como principal objetivo potenciar el desarrollo de la actividad investigativa, mediante la formalizaciĂłn de redes de investigadores, la promociĂłn de actividades conjuntas, el diseño de planes y movilidad y el trabajo en una red editorial. La actividad acadĂ©mica fue un espacio abierto para compartir experiencias y resultados de investigaciĂłn no solo de las universidades adscritas a la red, sino de otras instituciones que participaron en el evento. (Tomado de la fuente).1ra ediciĂłnIntroducciĂłn ponencias I. Derecho y Ciencias Sociales AnĂĄlisis del marco institucional vinculado a la implementaciĂłn de las salvaguardas REDD+ en la Provincia de Salta, Argentina Guadalupe Zapata: intersticios en la construcciĂłn histĂłrica fundacional de Pereira, Colombia La notificaciĂłn por aviso como garantĂ­a al debido proceso y tutela judicial efectiva en el proceso monitorio colombiano: anĂĄlisis en el marco de la Sentencia C-031/2019 MigraciĂłn y prĂĄcticas territoriales de la comunidad boliviana en la ciudad de Salta, Argentina El derecho de infancia y adolescencia en Colombia: reflexiones sobre su estatuto jurĂ­dico-doctrinal La soberanĂ­a funcional en Colombia para los derechos humanos AgniciĂłn de los militares vĂ­ctimas del conflicto armado en Colombia Elementos politolĂłgicos y jurĂ­dicos del voto en blanco, el voto nulo y el abstencionismo en las elecciones presidenciales de Ecuador 2017, Costa Rica 2018 y Colombia 2018 La democracia: Âżun fruto envenenado? Una propuesta de jerarquizaciĂłn de las democracias liberales Estudio sobre las relaciones de similitud, causalidad y simbĂłlicas en niños de 3 a 13 años GarantĂ­as para el ejercicio de los derechos de los usuarios y estudiantes con discapacidad, enfocado en la inclusiĂłn desde el consultorio jurĂ­dico de CECAR II. Arte, Arquitectura, Urbanismo y Diseño La industrializaciĂłn como motor de suburbanizaciĂłn y metropolizaciĂłn de Monterrey, MĂ©xico, en el siglo XX ReivindicaciĂłn del campesinado desde sus prĂĄcticas y saberes: tradiciones en tiempos del posacuerdo en el Sumapaz (Colombia) Diseño geomĂ©trico de “calado” para potencializar la ventilaciĂłn natural en edificaciones El Anfiteatro de la quebrada de Las Conchas: caracterizaciĂłn acĂșstica direccional Estrategia de intervenciĂłn urbana para la reconfiguraciĂłn de las redes caminables del borde urbano. Caso de estudio: Sierra Morena, USME Instrumentos musicales del Caribe colombiano en vĂ­as de extinciĂłn: guandĂș, arco de boca y marimba de pierna Dispositivos de cambio: intervenciones colectivas en el borde urbano suroriental de BogotĂĄ CreaciĂłn de nuevos procesos y diseños para la arquitectura de AmĂ©rica Latina con la ayuda de indicadores III. IngenierĂ­a y TecnologĂ­a Diseño de inclusiĂłn tecnolĂłgica educativa a travĂ©s del B-Learning y las TIC Diseño de soluciones tecnolĂłgicas a problemas del contexto local en regiĂłn a travĂ©s del semillero de investigaciĂłn TECSIS de la Universidad de Caldas AplicaciĂłn de las tecnologĂ­as semĂĄnticas a la forensia digital: ontologĂ­a del correo electrĂłnico y su trazabilidad para el anĂĄlisis forense M-Learning aplicado para estudio de mercados en la formulaciĂłn de proyectos AnĂĄlisis en la generaciĂłn de caudales pico a partir del cambio de la cobertura vegetal en la cuenca Sardinata, departamento del Norte de Santander, Colombia AnĂĄlisis de impactos ambientales provocados por el aprovechamiento de recursos naturales renovables: metodologĂ­as que desarrollan nuevas fuentes generadoras de energĂ­a en PanamĂĄ y Colombia AplicaciĂłn de un modelo unificado para arcillas y arenas a suelos tĂ­picos de la ciudad de Salta Estudio tĂ©cnico para la planeaciĂłn de la emisora radial de la Universidad CatĂłlica de Colombia con migraciĂłn hacia radio digital La transferencia de las tecnologĂ­as limpias en la vivienda social en Brasil y Colombia Desarrollo de un contador Geiger-MĂŒller para verificar la exposiciĂłn a la radiaciĂłn en salas de radiologĂ­a convencional Diseño de un controlador tolerante a fallas en un vehĂ­culo de suspensiĂłn semiactiva IV. Ciencias de la Salud BiorremediaciĂłn de residuos peligrosos generados por laboratorios de docencia de la Universidad Colegio Mayor de Cundinamarca Morbilidad en Ecuador, 2007-2016 El desplazamiento del metabolismo de atorvastatina es afectado por los polimorfismos SLCO1B1 y ABCB1 en la poblaciĂłn mexicana Terapia ocupacional basada en la evidencia y razonamiento profesional en equipos interdisciplinares de tecnologĂ­a de apoyo: prĂłtesis impresas en 3D de la CorporaciĂłn Fabrilab Vicisitudes actuales de la autoridad en las familias de Salta, Argentina Efecto de la lesiĂłn por leishmaniasis cutĂĄnea (Leishmania braziliensis, Leishmania amazonensis) en el nervio perifĂ©rico y dermis en ratones Balb/C. Estudio in vivo Diseño y validaciĂłn del cuestionario de gravedad social percibida del consumo de alcohol en adolescentes Diseño y construcciĂłn de una aplicaciĂłn virtual para rehabilitaciĂłn auditiva en adultos RevisiĂłn sistemĂĄtica: propiedades psicomĂ©tricas de los instrumentos utilizados para evaluar las actividades instrumentales de la vida diaria en joven, adulto y persona mayor V. Negocios, Ciencias EconĂłmicas y Administrativas Estudio de factibilidad para la conformaciĂłn de una empresa prestadora de servicios para motocicletas en Manizales Oferta productiva del cacao colombiano en el posconflicto: estrategias para el aprovechamiento de oportunidades comerciales en el marco del acuerdo comercial entre Colombia y la UniĂłn Europea VI. EducaciĂłn y Humanidades La infantilizaciĂłn del estudiante universitario: origen, situaciĂłn actual e implicaciones PromociĂłn de competencias socioafectivas en el aula AnĂĄlisis de la estructura curricular de la Licenciatura en Higiene y Seguridad en el Trabajo: el sistema modular La familia cristiana, una nueva buena para el tercer milenio: los Encuentros Mundiales de las Familias, de Juan Pablo II a Francisco (1994-2018) Perspectivas de la innovaciĂłn educativa que caracterizan los trabajos de investigaciĂłn de la MaestrĂ­a en E-Learning de la Universidad AutĂłnoma de Bucaramanga (Colombia) AnĂĄlisis de las nuevas tendencias laborales y formativas del trabajador social de Uniminuto (Girardot) ArticulaciĂłn entre la educaciĂłn religiosa escolar y el derecho a la libertad religiosa AnĂĄlisis correlacional del aporte de la educaciĂłn pregradual a la educaciĂłn secundaria de los egresados del programa de Trabajo Social del 2018 del CRG Uniminuto El aprendizaje en la resignificaciĂłn de la vida de las infancias Modelo teĂłrico predictor de la retenciĂłn estudiantil a partir del engagement en la FundaciĂłn Universitaria Los Libertadores La letra con sangre entra: castigo permitido en la educaciĂłn escolar en BogotĂĄ La diferencia en la educaciĂłn pĂłsteres I. Arte, Arquitectura, Urbanismo y Diseño RestructuraciĂłn de los paisajes naturales presentes en los bordes urbanos de BogotĂĄ ÂżPaisaje, medioambiente y tecnologĂ­a como bioarquitectura del paisaje? El equipamiento de culto en la construcciĂłn del borde urbano de la ciudad II. IngenierĂ­a y TecnologĂ­a Nueva matriz para registrar la experiencia consolidada de los oferentes que contratan con el Estado en el sector de la infraestructura vial, en la empresa JOYCO S. A. S Seguridad a un ojo de distancia Sistema de radio sobre fibra para la transmisiĂłn de imĂĄgenes Estructuras en guadua (quiosco) y bambĂș (yurta)* AnĂĄlisis de la utilizaciĂłn de fibras de guadua como refuerzo del concreto Laboratorios con simulaciĂłn y con equipo real en la enseñanza de redes de computadoras en el nivel universitario AnĂĄlisis bibliomĂ©trico de la correlaciĂłn existente entre los tĂłpicos de “identificadores de radiofrecuencia” y “gestiĂłn de cadena de suministros” como caso de estudio II. Ciencias de la Salud Presencia en manos y conocimiento de Staphylococcus aureus coagulasa positivo en estudiantes de ĂĄreas de la salud IV. EducaciĂłn y Humanidades Del refugio de la virtualidad a la exposiciĂłn del contacto real Conclusione

    Emotional processing in Parkinson's disease and anxiety: an EEG study of visual affective word processing

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    A general problem in the design of an EEG-BCI system is the poor quality and low robustness of the extracted features, affecting overall performance. However, BCI systems that are applicable in real-time and outside clinical settings require high performance. Therefore, we have to improve the current methods for feature extraction. In this work, we investigated EEG source reconstruction techniques to enhance the extracted features based on a linearly constrained minimum variance (LCMV) beamformer. Beamformers allow for easy incorporation of anatomical data and are applicable in real-time. A 32-channel EEG-BCI system was designed for a two-class motor imagery (MI) paradigm. We optimized a synchronous system for two untrained subjects and investigated two aspects. First, we investigated the effect of using beamformers calculated on the basis of three different head models: a template 3-layered boundary element method (BEM) head model, a 3-layered personalized BEM head model and a personalized 5-layered finite difference method (FDM) head model including white and gray matter, CSF, scalp and skull tissue. Second, we investigated the influence of how the regions of interest, areas of expected MI activity, were constructed. On the one hand, they were chosen around electrodes C3 and C4, as hand MI activity theoretically is expected here. On the other hand, they were constructed based on the actual activated regions identified by an fMRI scan. Subsequently, an asynchronous system was derived for one of the subjects and an optimal balance between speed and accuracy was found. Lastly, a real-time application was made. These systems were evaluated by their accuracy, defined as the percentage of correct left and right classifications. From the real-time application, the information transfer rate (ITR) was also determined. An accuracy of 86.60 ± 4.40% was achieved for subject 1 and 78.71 ± 0.73% for subject 2. This gives an average accuracy of 82.66 ± 2.57%. We found that the use of a personalized FDM model improved the accuracy of the system, on average 24.22% with respect to the template BEM model and on average 5.15% with respect to the personalized BEM model. Including fMRI spatial priors did not improve accuracy. Personal fine- tuning largely resolved the robustness problems arising due to the differences in head geometry and neurophysiology between subjects. A real-time average accuracy of 64.26% was reached and the maximum ITR was 6.71 bits/min. We conclude that beamformers calculated with a personalized FDM model have great potential to ameliorate feature extraction and, as a consequence, to improve the performance of real-time BCI systems

    Paediatric COVID-19 mortality: a database analysis of the impact of health resource disparity

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    Background The impact of the COVID-19 pandemic on paediatric populations varied between high-income countries (HICs) versus low-income to middle-income countries (LMICs). We sought to investigate differences in paediatric clinical outcomes and identify factors contributing to disparity between countries.Methods The International Severe Acute Respiratory and Emerging Infections Consortium (ISARIC) COVID-19 database was queried to include children under 19 years of age admitted to hospital from January 2020 to April 2021 with suspected or confirmed COVID-19 diagnosis. Univariate and multivariable analysis of contributing factors for mortality were assessed by country group (HICs vs LMICs) as defined by the World Bank criteria.Results A total of 12 860 children (3819 from 21 HICs and 9041 from 15 LMICs) participated in this study. Of these, 8961 were laboratory-confirmed and 3899 suspected COVID-19 cases. About 52% of LMICs children were black, and more than 40% were infants and adolescent. Overall in-hospital mortality rate (95% CI) was 3.3% [=(3.0% to 3.6%), higher in LMICs than HICs (4.0% (3.6% to 4.4%) and 1.7% (1.3% to 2.1%), respectively). There were significant differences between country income groups in intervention profile, with higher use of antibiotics, antivirals, corticosteroids, prone positioning, high flow nasal cannula, non-invasive and invasive mechanical ventilation in HICs. Out of the 439 mechanically ventilated children, mortality occurred in 106 (24.1%) subjects, which was higher in LMICs than HICs (89 (43.6%) vs 17 (7.2%) respectively). Pre-existing infectious comorbidities (tuberculosis and HIV) and some complications (bacterial pneumonia, acute respiratory distress syndrome and myocarditis) were significantly higher in LMICs compared with HICs. On multivariable analysis, LMIC as country income group was associated with increased risk of mortality (adjusted HR 4.73 (3.16 to 7.10)).Conclusion Mortality and morbidities were higher in LMICs than HICs, and it may be attributable to differences in patient demographics, complications and access to supportive and treatment modalities

    Global variation in postoperative mortality and complications after cancer surgery: a multicentre, prospective cohort study in 82 countries

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    © 2021 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 licenseBackground: 80% of individuals with cancer will require a surgical procedure, yet little comparative data exist on early outcomes in low-income and middle-income countries (LMICs). We compared postoperative outcomes in breast, colorectal, and gastric cancer surgery in hospitals worldwide, focusing on the effect of disease stage and complications on postoperative mortality. Methods: This was a multicentre, international prospective cohort study of consecutive adult patients undergoing surgery for primary breast, colorectal, or gastric cancer requiring a skin incision done under general or neuraxial anaesthesia. The primary outcome was death or major complication within 30 days of surgery. Multilevel logistic regression determined relationships within three-level nested models of patients within hospitals and countries. Hospital-level infrastructure effects were explored with three-way mediation analyses. This study was registered with ClinicalTrials.gov, NCT03471494. Findings: Between April 1, 2018, and Jan 31, 2019, we enrolled 15 958 patients from 428 hospitals in 82 countries (high income 9106 patients, 31 countries; upper-middle income 2721 patients, 23 countries; or lower-middle income 4131 patients, 28 countries). Patients in LMICs presented with more advanced disease compared with patients in high-income countries. 30-day mortality was higher for gastric cancer in low-income or lower-middle-income countries (adjusted odds ratio 3·72, 95% CI 1·70–8·16) and for colorectal cancer in low-income or lower-middle-income countries (4·59, 2·39–8·80) and upper-middle-income countries (2·06, 1·11–3·83). No difference in 30-day mortality was seen in breast cancer. The proportion of patients who died after a major complication was greatest in low-income or lower-middle-income countries (6·15, 3·26–11·59) and upper-middle-income countries (3·89, 2·08–7·29). Postoperative death after complications was partly explained by patient factors (60%) and partly by hospital or country (40%). The absence of consistently available postoperative care facilities was associated with seven to 10 more deaths per 100 major complications in LMICs. Cancer stage alone explained little of the early variation in mortality or postoperative complications. Interpretation: Higher levels of mortality after cancer surgery in LMICs was not fully explained by later presentation of disease. The capacity to rescue patients from surgical complications is a tangible opportunity for meaningful intervention. Early death after cancer surgery might be reduced by policies focusing on strengthening perioperative care systems to detect and intervene in common complications. Funding: National Institute for Health Research Global Health Research Unit

    Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study

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    © 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 licenseBackground: Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide. Methods: A multimethods analysis was performed as part of the GlobalSurg 3 study—a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital. Findings: Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3·85 [95% CI 2·58–5·75]; p<0·0001), with excess mortality predominantly explained by a limited capacity to rescue following the development of major complications (63·0% vs 82·7%; OR 0·35 [0·23–0·53]; p<0·0001). Across LMICs, improvements in hospital facilities would prevent one to three deaths for every 100 patients undergoing surgery for cancer. Interpretation: Hospitals with higher levels of infrastructure and resources have better outcomes after cancer surgery, independent of country income. Without urgent strengthening of hospital infrastructure and resources, the reductions in cancer-associated mortality associated with improved access will not be realised. Funding: National Institute for Health and Care Research

    Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries

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    Background Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks. Methods The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned. Results A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P &lt; 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31). Conclusion Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov)
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