274 research outputs found
Depicting the battle between nectarine and Monilinia laxa: the fruit developmental stage dictates the effectiveness of the host defenses and the pathogen’s infection strategies
Infections by the fungus Monilinia laxa, the main cause of brown rot in Europe, result in considerable losses of stone
fruit. Herein, we present a comprehensive transcriptomic approach to unravel strategies deployed by nectarine fruit
and M. laxa during their interaction. We used M. laxa-inoculated immature and mature fruit, which was resistant and
susceptible to brown rot, respectively, to perform a dual RNA-Seq analysis. In immature fruit, host responses, pathogen
biomass, and pathogen transcriptional activity peaked at 14–24 h post inoculation (hpi), at which point M. laxa
appeared to switch its transcriptional response to either quiescence or death. Mature fruit experienced an exponential
increase in host and pathogen activity beginning at 6 hpi. Functional analyses in both host and pathogen highlighted
differences in stage-dependent strategies. For example, in immature fruit, M. laxa unsuccessfully employed
carbohydrate-active enzymes (CAZymes) for penetration, which the fruit was able to combat with tightly regulated
hormone responses and an oxidative burst that challenged the pathogen’s survival at later time points. In contrast, in
mature fruit, M. laxa was more dependent on proteolytic effectors than CAZymes, and was able to invest in
filamentous growth early during the interaction. Hormone analyses of mature fruit infected with M. laxa indicated that,
while jasmonic acid activity was likely useful for defense, high ethylene activity may have promoted susceptibility
through the induction of ripening processes. Lastly, we identified M. laxa genes that were highly induced in both
quiescent and active infections and may serve as targets for control of brown rot.info:eu-repo/semantics/publishedVersio
PriTec Tool: Adaptation for the selection of technologies to be assessed prior entry into the health care benefits basket
O obxectivo deste documento é desenvolver unha ferramenta que facilite á Comisión de Prestacións, Aseguramento e Financiación seleccionar e priorizar, dunha forma obxectiva e sistemática, as tecnoloxías sanitarias a avaliar pola RedETS de cara á súa inclusión/exclusión ou modificación de condicións de uso en carteira de servizosEl objetivo de este documento es desarrollar una herramienta que facilite a la Comisión de Prestaciones, Aseguramiento y Financiación seleccionar y priorizar, de una forma objetiva y sistemática, las tecnologías sanitarias a evaluar por la RedETS de cara a su inclusión/exclusión o modificación de condiciones de uso en cartera de servicio
Postlaunch evidence-generation studies for medical devices in Spain: the RedETS approach to integrate real-world evidence into decision making
The Monitoring Studies (MS) program, the approach developed by RedETS to generate postlaunch real-world evidence (RWE), is intended to complement and enhance the conventional health technology assessment process to support health policy decision making in Spain, besides informing other interested stakeholders, including clinicians and patients. The MS program is focused on specific uncertainties about the real effect, safety, costs, and routine use of new and insufficiently assessed relevant medical devices carefully selected to ensure the value of the additional research needed, by means of structured, controlled, participative, and transparent procedures. However, despite a clear political commitment and economic support from national and regional health authorities, several difficulties were identified along the development and implementation of the first wave of MS, delaying its execution and final reporting. Resolution of these difficulties at the regional and national levels and a greater collaborative impulse in the European Union, given the availability of an appropriate methodological framework already provided by EUnetHTA, might provide a faster and more efficient comparative RWE of improved quality and reliability at the national and international levels
Temas Socio-Jurídicos. Volumen 19 No. 40 Junio de 2001
Las opiniones contenidas en los artículos de esta revista no vinculan a la institución, sino que son de exclusiva responsabilidad de los autores, dentro de los principios democráticos de la cátedra libre y la libertad de expresión consagrados en el artículo 3o. del estatuto general de la corporación universidad autónoma de Bucaramanga - UNAB.
El material de esta publicación puede ser reproducido sin autorización, siempre que se mencione su procedencia y el Centro de Investigaciones Socio-Jurídicas de la UNAB, reciba un ejemplar de la publicación.The opinions contained in the articles of this magazine do not bind the institution, but are the sole responsibility of the authors, within the democratic principles of the free chair and freedom of expression enshrined in article 3. of the general statute of the autonomous university corporation of Bucaramanga - UNAB. The material in this publication may be reproduced without authorization, as long as its source is mentioned and the Socio-Legal Research Center of UNAB receives a copy of the publication
Consenso de expertos sobre recomendaciones basadas en evidencia para el diagnóstico, tratamiento y seguimiento de enfermedad de Fabry en pediatría
Antecedentes: La enfermedad de Fabry (EF) es una enfermedad rara ligada a X secundaria al depósito lisosomal de glicoesfingolípidos debido a la deficiencia de la enzima alfa galactosidasa A (α-Gal A). A pesar de su baja frecuencia, es una condición que afecta la calidad de vida de los pacientes y disminuye su esperanza de vida.
Objetivo: Generar recomendaciones informadas en evidencia para el diagnóstico y tratamiento de pacientes pediátricos (menores de 8 años) con EF.
Métodos: Se realizó una revisión de literatura en bases de datos y literatura gris a partir del 2010, incluyendo guías de práctica clínica, revisiones sistemáticas, estudios primarios. La calidad de evidencia se evalúo de acuerdo con el tipo de evidencia. Las recomendaciones se sometieron a consenso de expertos a través de metodología Delphi modificada. El acuerdo se definió a partir del 80%.
Resultados: A partir del análisis de la evidencia recolectada, se formularon un total de 45 recomendaciones para tamización, diagnóstico y tratamiento de paciente pediátrico con enfermedad de Fabry. El panel revisor estuvo conformado por once expertos en el tema. Las recomendaciones fueron aprobadas con puntuaciones entre 82.3% y 100%.
Conclusiones: Las recomendaciones resultantes del consenso de expertos permitirán la toma de decisiones clínicas y estandarización de la práctica en la atención de pacientes pediátricos con EF a nivel nacional y regional; el diagnóstico temprano y oportuno garantiza una disminución del impacto en la calidad de vida de los pacientes y sus familiares.
Palabras clave: Enfermedad de Fabry, niños, diagnóstico, terapeutica, biomarcadore
Defects in memory B-cell and plasma cell subsets expressing different immunoglobulin-subclasses in patients with CVID and immunoglobulin subclass deficiencies
Background: Predominantly antibody deficiencies (PADs) are
the most prevalent primary immunodeficiencies, but their B-cell
defects and underlying genetic alterations remain largely
unknown.
Objective: We investigated patients with PADs for the
distribution of 41 blood B-cell and plasma cell (PC) subsets,
including subsets defined by expression of distinct
immunoglobulin heavy chain subclasses.
Methods: Blood samples from 139 patients with PADs, 61
patients with common variable immunodeficiency (CVID), 68
patients with selective IgA deficiency (IgAdef), 10 patients with
IgG subclass deficiency with IgA deficiency, and 223 agematched control subjects were studied by using flow cytometry
with EuroFlow immunoglobulin isotype staining. Patients were
classified according to their B-cell and PC immune profile, and
the obtained patient clusters were correlated with clinical
manifestations of PADs.
Results: Decreased counts of blood PCs, memory B cells
(MBCs), or both expressing distinct IgA and IgG subclasses
were identified in all patients with PADs. In patients with
IgAdef, B-cell defects were mainly restricted to surface
membrane (sm)IgA1 PCs and MBCs, with 2 clear subgroups
showing strongly decreased numbers of smIgA1 PCs with
mild versus severe smIgA1 MBC defects and higher
frequencies of nonrespiratory tract infections, autoimmunity,
and affected family members. Patients with IgG subclass
deficiency with IgA deficiency and those with CVID showed
defects in both smIgA1 and smIgG1 MBCs and PCs.
Reduced numbers of switched PCs were systematically found
in patients with CVID (absent in 98%), with 6 different
defective MBC (and clinical) profiles: (1) profound decrease
in MBC numbers; (2) defective CD271 MBCs with almost
normal IgG3
1 MBCs; (3) absence of switched MBCs; and (4)
presence of both unswitched and switched MBCs without
and; (5) with IgG2
1 MBCs; and (6) with IgA
The evolution of the ventilatory ratio is a prognostic factor in mechanically ventilated COVID-19 ARDS patients
Background: Mortality due to COVID-19 is high, especially in patients requiring mechanical ventilation. The purpose of the study is to investigate associations between mortality and variables measured during the first three days of mechanical ventilation in patients with COVID-19 intubated at ICU admission. Methods: Multicenter, observational, cohort study includes consecutive patients with COVID-19 admitted to 44 Spanish ICUs between February 25 and July 31, 2020, who required intubation at ICU admission and mechanical ventilation for more than three days. We collected demographic and clinical data prior to admission; information about clinical evolution at days 1 and 3 of mechanical ventilation; and outcomes. Results: Of the 2,095 patients with COVID-19 admitted to the ICU, 1,118 (53.3%) were intubated at day 1 and remained under mechanical ventilation at day three. From days 1 to 3, PaO2/FiO2 increased from 115.6 [80.0-171.2] to 180.0 [135.4-227.9] mmHg and the ventilatory ratio from 1.73 [1.33-2.25] to 1.96 [1.61-2.40]. In-hospital mortality was 38.7%. A higher increase between ICU admission and day 3 in the ventilatory ratio (OR 1.04 [CI 1.01-1.07], p = 0.030) and creatinine levels (OR 1.05 [CI 1.01-1.09], p = 0.005) and a lower increase in platelet counts (OR 0.96 [CI 0.93-1.00], p = 0.037) were independently associated with a higher risk of death. No association between mortality and the PaO2/FiO2 variation was observed (OR 0.99 [CI 0.95 to 1.02], p = 0.47). Conclusions: Higher ventilatory ratio and its increase at day 3 is associated with mortality in patients with COVID-19 receiving mechanical ventilation at ICU admission. No association was found in the PaO2/FiO2 variation
Clustering COVID-19 ARDS patients through the first days of ICU admission. An analysis of the CIBERESUCICOVID Cohort
Background Acute respiratory distress syndrome (ARDS) can be classified into sub-phenotypes according to different inflammatory/clinical status. Prognostic enrichment was achieved by grouping patients into hypoinflammatory or hyperinflammatory sub-phenotypes, even though the time of analysis may change the classification according to treatment response or disease evolution. We aimed to evaluate when patients can be clustered in more than 1 group, and how they may change the clustering of patients using data of baseline or day 3, and the prognosis of patients according to their evolution by changing or not the cluster.Methods Multicenter, observational prospective, and retrospective study of patients admitted due to ARDS related to COVID-19 infection in Spain. Patients were grouped according to a clustering mixed-type data algorithm (k-prototypes) using continuous and categorical readily available variables at baseline and day 3.Results Of 6205 patients, 3743 (60%) were included in the study. According to silhouette analysis, patients were grouped in two clusters. At baseline, 1402 (37%) patients were included in cluster 1 and 2341(63%) in cluster 2. On day 3, 1557(42%) patients were included in cluster 1 and 2086 (57%) in cluster 2. The patients included in cluster 2 were older and more frequently hypertensive and had a higher prevalence of shock, organ dysfunction, inflammatory biomarkers, and worst respiratory indexes at both time points. The 90-day mortality was higher in cluster 2 at both clustering processes (43.8% [n = 1025] versus 27.3% [n = 383] at baseline, and 49% [n = 1023] versus 20.6% [n = 321] on day 3). Four hundred and fifty-eight (33%) patients clustered in the first group were clustered in the second group on day 3. In contrast, 638 (27%) patients clustered in the second group were clustered in the first group on day 3.Conclusions During the first days, patients can be clustered into two groups and the process of clustering patients may change as they continue to evolve. This means that despite a vast majority of patients remaining in the same cluster, a minority reaching 33% of patients analyzed may be re-categorized into different clusters based on their progress. Such changes can significantly impact their prognosis
Les droits disciplinaires des fonctions publiques : « unification », « harmonisation » ou « distanciation ». A propos de la loi du 26 avril 2016 relative à la déontologie et aux droits et obligations des fonctionnaires
The production of tt‾ , W+bb‾ and W+cc‾ is studied in the forward region of proton–proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98±0.02 fb−1 . The W bosons are reconstructed in the decays W→ℓν , where ℓ denotes muon or electron, while the b and c quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions.The production of , and is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98 0.02 \mbox{fb}^{-1}. The bosons are reconstructed in the decays , where denotes muon or electron, while the and quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions
- …