62 research outputs found

    Estrategias de conservación para Cotoneaster granatensis (Rosaceae), especie catalogada En Peligro de Extinción en la Comunitat Valenciana (España)

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    Cotoneaster granatensis (Rosaceae) is an endangered species in the Valencian Community with two natural populations known and 37 wild plants located in Alicante province. The strategy applied for conservation of this species comprises three steps in a cyclical method: in situ (first step) - ex situ - in situ (second step). Current conservation status for this species has been evaluated as a part of the first step in situ actions. Ex situ conservation activities consisted of germplasm conservation on seed banks, creation and maintenance of collections of livings plants and production of new plants in order to develop reintroductions (in situ actions: second step) in natural populations. The seed germination is a complex issue, but an effective protocol has been established reaching values over 60% of germination. The plant propagation by cuttings has not been successful. In situ actions such as reducing the threat of herbivory has been also essential to enhance natural populations. The initial results on plantations in the natural habitat show high survival rates of specimens

    Estudio prospectivo, de seguimiento en pacientes con enfermedad de Gaucher Tipo 1 que reciben tratamiento con CERDELGA®. Proyecto TRAZELGA

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    Poster [PC-303] Introducción: La enfermedad de Gaucher tipo 1 (EG1), secundaria al déficit en la enzima glucocerebrosidasa lisosomal, provoca el acúmulo de glucocerebrósido principalmente en macrófagos, causando deterioro de los órganos en los que se deposita. El nuevo inhibidor de substrato Eliglustat (ELG), aprobado por la EMEA en 2015 y disponible desde enero 2017, inhibe de forma selectiva y potente la enzima glucosilceramida sintasa, disminuyendo el acúmulo de substrato, está indicado en EG1 metabolizadores rápidos, intermedios o lentos para el citocromo CYP2D6. Los ensayos clínicos de fase 2 y 3 demostraron mejora y estabilización de los parámetros tanto en los pacientes naïve, como en los de tratamiento enzimático sustitutivo. En este trabajo se expone el estudio de trazabilidad del tratamiento con eliglustat en pacientes con GD1 en España (TRAZELGA). Material y Métodos: El estudio nacional, multicéntrico TRAZELGA, ha sido diseñado como herramienta para evaluar de forma uniforme la respuesta al tratamiento durante un año, analizando los cambios en parámetros clínicos y biomarcadores habituales, registro de medicamentos concomitantes y efectos adversos a ELG, estudio de calidad de vida e incorporando un estudio exploratorio de marcadores de activación del sistema inmune (perfil de citoquinas, ferritina, lipocalina, gammaglobulinas, marcadores de estrés oxidativo), así como cambios en la infiltración medular cuantificados por RM y DEXA. Previo al inicio de ELG se realizó una evaluación de función cardíaca, hepática y renal. Resultados: 35 pacientes han iniciado tratamiento oral con Eliglustat. En esta presentación aportamos resultados preliminares de 21 pacientes (mediana de edad: 43, 8 años(23-75), 47% varones), genotipo de EG N370S/N370S: (29, 4%), N370S/L444P (41, 2%), otros dobles heterocigotos con N370S (29, 4%), metabolismo del CYP2D6 (12% metabolizadores lentos, 64, 5% intermedios y 33, 5% rápidos, ningún paciente recibió el tratamiento en prímera línea y sus características basales (tabla1), son de pacientes estabilizados con TES (15 casos) o miglustat (6). Un paciente esplenectomizado. 3 pacientes esplenomegalia palpable al momento de inclusión. 6 pacientes con multimorbilidades y polimedicaciones y 5 pacientes aquejaban astenia como síntoma principal antes de su inclusión en este estudio. El seguimiento medio actual es de 6 meses. Conclusiones: Se espera incluir un total de 30 pacientes en el estudio y analizar la influencia de Eliglustat sobre los biomarcadores, marcadores de inflamación, densidad mineral ósea. Tener información sobre adherencia, efectos adversos en práctica clínica habitual y grado de satisfacción. Aunque escasos, hasta ahora no hay publicada información de la respuesta al tratamiento en pacientes provenientes de tratamiento con miglustat. En caso de aceptación se presentará un análisis exhaustivo, invitando a todos los interesados a unirse al proyecto

    Association of candidate gene polymorphisms with chronic kidney disease : Results of a case-control analysis in the NEFRONA cohort

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    Chronic kidney disease (CKD) is a major risk factor for end-stage renal disease, cardiovascular disease and premature death. Despite classical clinical risk factors for CKD and some genetic risk factors have been identified, the residual risk observed in prediction models is still high. Therefore, new risk factors need to be identified in order to better predict the risk of CKD in the population. Here, we analyzed the genetic association of 79 SNPs of proteins associated with mineral metabolism disturbances with CKD in a cohort that includes 2,445 CKD cases and 559 controls. Genotyping was performed with matrix assisted laser desorption ionization-time of flight mass spectrometry. We used logistic regression models considering different genetic inheritance models to assess the association of the SNPs with the prevalence of CKD, adjusting for known risk factors. Eight SNPs (rs1126616, rs35068180, rs2238135, rs1800247, rs385564, rs4236, rs2248359, and rs1564858) were associated with CKD even after adjusting by sex, age and race. A model containing five of these SNPs (rs1126616, rs35068180, rs1800247, rs4236, and rs2248359), diabetes and hypertension showed better performance than models considering only clinical risk factors, significantly increasing the area under the curve of the model without polymorphisms. Furthermore, one of the SNPs (the rs2248359) showed an interaction with hypertension, being the risk genotype affecting only hypertensive patients. We conclude that 5 SNPs related to proteins implicated in mineral metabolism disturbances (Osteopontin, osteocalcin, matrix gla protein, matrix metalloprotease 3 and 24 hydroxylase) are associated to an increased risk of suffering CKD

    Association of a single nucleotide polymorphism combination pattern of the Klotho gene with non-cardiovascular death in patients with chronic kidney disease

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    Chronic kidney disease (CKD) is associated with an elevated risk of all-cause mortality, with cardiovascular death being extensively investigated. However, non-cardiovascular mortality represents the biggest percentage, showing an evident increase in recent years. Klotho is a gene highly expressed in the kidney, with a clear influence on lifespan. Low levels of Klotho have been linked to CKD progression and adverse outcomes. Single nucleotide polymorphisms (SNPs) of the Klotho gene have been associated with several diseases, but studies investigating the association of Klotho SNPs with noncardiovascular death in CKD populations are lacking. The main aim of this study was to assess whether 11 Klotho SNPs were associated with non-cardiovascular death in a subpopulation of the National Observatory of Atherosclerosis in Nephrology (NEFRONA) study (n ¼ 2185 CKD patients). After 48 months of follow-up, 62 cardiovascular deaths and 108 non-cardiovascular deaths were recorded. We identified a high non-cardiovascular death risk combination of SNPs corresponding to individuals carrying the most frequent allele (G) at rs562020, the rare allele (C) at rs2283368 and homozygotes for the rare allele (G) at rs2320762 (rs562020 GG/AG þ rs2283368 CC/CT þ rs2320762 GG). Among the patients with the three SNPs genotyped (n ¼ 1016), 75 (7.4%) showed this combination. Furthermore, 95 (9.3%) patients showed a low-risk combination carrying all the opposite genotypes (rs562020 AA þ rs2283368 TT þ rs2320762 GT/TT). All the other combinations [n ¼ 846 (83.3%)] were considered as normal risk. Using competing risk regression analysis, we confirmed that the proposed combinations are independently associated with a higher fhazard ratio [HR] 3.28 [confidence interval (CI) 1.51-7.12]g and lower [HR 6 × 10- (95% CI 3.3 × 10--1.1 × 10-)] risk of suffering a non-cardiovascular death in the CKD population of the NEFRONA cohort compared with patients with the normal-risk combination. Determination of three SNPs of the Klotho gene could help in the prediction of non-cardiovascular death in CKD

    El derecho del trabajo y de la seguridad social en España en 2014

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    Este documento intenta reflejar algunos de los principales cambios y novedades del ordenamiento laboral español en 2014, levantando acta de cómo la mutabilidad de nuestro Derecho del Trabajo es imparable. Este informe, consciente de ello, ofrece una selección de elementos esenciales, a juicio de sus autores, especialistas en cada una de las materias, encuadrados en la Sección Juvenil de la Asociación Española de Derecho del Trabajo y de la Seguridad Social. En él, conforme a la organización de dicha Sección en grupos de trabajo, se abordan las novedades más relevantes en materia de derechos fundamentales inespecíficos, contratación laboral, vicisitudes del contrato de trabajo, Derecho colectivo, conciliación y corresponsabilidad, protección social y prevención de riesgos laborales. This paper tries to show some of the many changes and novelties in Spanish Labour Law during 2014, drawing up a record of the unstoppable character of our Labour legal system. This report offers a selection of essential elements, according to its authors, all of them specialists in each one of the subjects, being part of the Young Scholars’ Section of the Spanish Association for Labour and Social Security Law. According to the organization of the said Section in working groups, we can find novelties concerning unspecific fundamental rights, work contracts, the life of the work contract and collective Labour Law, work-life balance and co responsibility, social protection and occupational risk prevention

    CIBERER : Spanish national network for research on rare diseases: A highly productive collaborative initiative

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    Altres ajuts: Instituto de Salud Carlos III (ISCIII); Ministerio de Ciencia e Innovación.CIBER (Center for Biomedical Network Research; Centro de Investigación Biomédica En Red) is a public national consortium created in 2006 under the umbrella of the Spanish National Institute of Health Carlos III (ISCIII). This innovative research structure comprises 11 different specific areas dedicated to the main public health priorities in the National Health System. CIBERER, the thematic area of CIBER focused on rare diseases (RDs) currently consists of 75 research groups belonging to universities, research centers, and hospitals of the entire country. CIBERER's mission is to be a center prioritizing and favoring collaboration and cooperation between biomedical and clinical research groups, with special emphasis on the aspects of genetic, molecular, biochemical, and cellular research of RDs. This research is the basis for providing new tools for the diagnosis and therapy of low-prevalence diseases, in line with the International Rare Diseases Research Consortium (IRDiRC) objectives, thus favoring translational research between the scientific environment of the laboratory and the clinical setting of health centers. In this article, we intend to review CIBERER's 15-year journey and summarize the main results obtained in terms of internationalization, scientific production, contributions toward the discovery of new therapies and novel genes associated to diseases, cooperation with patients' associations and many other topics related to RD research

    Deep-sequencing reveals broad subtype-specific HCV resistance mutations associated with treatment failure

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    A percentage of hepatitis C virus (HCV)-infected patients fail direct acting antiviral (DAA)-based treatment regimens, often because of drug resistance-associated substitutions (RAS). The aim of this study was to characterize the resistance profile of a large cohort of patients failing DAA-based treatments, and investigate the relationship between HCV subtype and failure, as an aid to optimizing management of these patients. A new, standardized HCV-RAS testing protocol based on deep sequencing was designed and applied to 220 previously subtyped samples from patients failing DAA treatment, collected in 39 Spanish hospitals. The majority had received DAA-based interferon (IFN) a-free regimens; 79% had failed sofosbuvir-containing therapy. Genomic regions encoding the nonstructural protein (NS) 3, NS5A, and NS5B (DAA target regions) were analyzed using subtype-specific primers. Viral subtype distribution was as follows: genotype (G) 1, 62.7%; G3a, 21.4%; G4d, 12.3%; G2, 1.8%; and mixed infections 1.8%. Overall, 88.6% of patients carried at least 1 RAS, and 19% carried RAS at frequencies below 20% in the mutant spectrum. There were no differences in RAS selection between treatments with and without ribavirin. Regardless of the treatment received, each HCV subtype showed specific types of RAS. Of note, no RAS were detected in the target proteins of 18.6% of patients failing treatment, and 30.4% of patients had RAS in proteins that were not targets of the inhibitors they received. HCV patients failing DAA therapy showed a high diversity of RAS. Ribavirin use did not influence the type or number of RAS at failure. The subtype-specific pattern of RAS emergence underscores the importance of accurate HCV subtyping. The frequency of “extra-target” RAS suggests the need for RAS screening in all three DAA target regions

    Role of age and comorbidities in mortality of patients with infective endocarditis

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    Purpose: The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality. Methods: Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015. Patients were stratified into three age groups:<65 years, 65 to 80 years, and = 80 years.The area under the receiver-operating characteristic (AUROC) curve was calculated to quantify the diagnostic accuracy of the CCI to predict mortality risk. Results: A total of 3120 patients with IE (1327 < 65 years;1291 65-80 years;502 = 80 years) were enrolled.Fever and heart failure were the most common presentations of IE, with no differences among age groups.Patients =80 years who underwent surgery were significantly lower compared with other age groups (14.3%, 65 years; 20.5%, 65-79 years; 31.3%, =80 years). In-hospital mortality was lower in the <65-year group (20.3%, <65 years;30.1%, 65-79 years;34.7%, =80 years;p < 0.001) as well as 1-year mortality (3.2%, <65 years; 5.5%, 65-80 years;7.6%, =80 years; p = 0.003).Independent predictors of mortality were age = 80 years (hazard ratio [HR]:2.78;95% confidence interval [CI]:2.32–3.34), CCI = 3 (HR:1.62; 95% CI:1.39–1.88), and non-performed surgery (HR:1.64;95% CI:11.16–1.58).When the three age groups were compared, the AUROC curve for CCI was significantly larger for patients aged <65 years(p < 0.001) for both in-hospital and 1-year mortality. Conclusion: There were no differences in the clinical presentation of IE between the groups. Age = 80 years, high comorbidity (measured by CCI), and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in the <65-year group

    Experimental progress in positronium laser physics

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