75 research outputs found
Revista del Consejo Superior de Investigaciones Científicas
Alimentación del meloncillo Herpestes ichneumon y de la gineta Genetta genetta en la Reserva Biológica de Doñana, S.O. de la Península Ibérica.Determinación de la edad en Rana perezi Seoane, 1885. Aplicación al análisis del crecimiento somático de poblaciones.Influencias ambientales en la variación del tamaño, forma y peso de los huevos de la collalba rubia (Oenanthe hispanica L.)Características de un coro de sapos corredores (Bufo calamita) en el sureste de España.Estrategias alimentarias del ciervo (Cervus elaphus L.) en Montes de ToledoDistribución de los quirópteros de la provincia de Orense (Noroeste de España).Ecología trófica del lince ibérico en Doñana durante un periodo secoDesarrollo larvario de la rana común (Rana perezi) (anura: ranidae) en charcas temporales del noroeste de la Península Ibérica.Régimen alimenticio del mirlo común (Turdus merula) en el sureste de la Península Ibérica durante el periodo otoño-invierno.Reproducción del gorrión molinero (Passer montanus) en las Islas Canarias.Relación entre la cobertura vegetal y la distribución de nidos en las colonias de pagaza piconegraPeer reviewe
Diferencias clínicas y hematimétricas en pacientes con trombocitemia esencial y mutación para el gen de la calreticulina
Abstract [PB-090]
Introducción: La identificación de la mutación somática en el gen CALR ha supuesto un avance diagnóstico en las neoplasias mieloproliferativas crónicas. Una cuarta parte de los pacientes (ptes) con trombocitemia esencial (TE) presenta dicha mutación, diferenciando dos variantes: la CALR tipo 1 (deleciones) y tipo 2 (inserciones). La TE mutada por CALR podría tratarse no solo de una entidad distinta a nivel molecular, sino también a nivel clínico-analítico. Métodos: Estudio descriptivo y prospectivo unicéntrico. Se incluyen 95 pacientes con TE diagnosticados en el Hospital Miguel Servet. Se analizan variables demográficas, características clínicas y hematimétricas en función de la biología molecular del paciente, establecimiento las diferencias observadas entre los pacientes con mutación JAK-2 y CALR (tipo 1 y tipo 2). Resultados: 35 eran hombres y 60 mujeres. Del total de pacientes, 55 presentaban la mutación JAK-2 (57, 89%), 22 la mutación CALR (23, 15%) (tipo 1: 12 ptes (46, 15%) y tipo 2: 10 ptes (38, 46%)), 5 la mutación MPL (5, 2%) y 9 eran triples negativos (9, 4%). Los ptes con TE mutada con CALR eran más jóvenes que los JAK-2, mediana de edad 65 años (29-84) y 72 años (40-96) respectivamente. Al diagnóstico, las cifras de hemoglobina y leucocitos en ptes JAK-2 eran superiores (mediana 14, 6 g/dL y 9, 30. 10³/µL) frente a CALR tipo 1 (mediana 14, 1 g/dL y 7, 78.10³/µL) y tipo 2 (14, 4 g/dL y 7, 80.10³/µL) y presentaban un recuento menor de plaquetas (mediana 744.10³/µL) frente a CALR tipo 1 (mediana 836. 10³/µL) y tipo 2 (mediana 916.10³/µL). Todos los pacientes CALR presentaban niveles normales de eritropoyetina mientras que un 18% JAK-2 presentaban niveles descendidos. 17 ptes (12, 72%) JAK-2, 3 ptes (25%) CALR tipo 1 y 1 pte (10%) CALR tipo 2 presentaban esplenomegalia. Presentaron episodio trombótico previo al diagnóstico: 5 ptes JAK- 2 (9%), de éstos 5 ptes eran hipertensos y 2 dislipémicos, 1 pte CALR tipo 1 (8, 3%), era hipertenso, dislipémico y fumador y ninguno CALR tipo 2, 1 pte era hipertenso. Tras el diagnóstico 1 pte JAK2 presentó nuevo episodio trombótico posteriormente. Al diagnóstico, 41 pacientes JAK-2 se les realizó biopsia ósea (74, 5%) con reticulina grado 1: 11 ptes (26, 82%), grado 2: 3 ptes (7, 3%) y grado 3: 0 ptes; a 11 ptes CALR tipo 1 (91, 6%) con reticulina grado 1: 3 ptes (27, 27%) y grado 2-3: 0 ptes; a 7 pacientes CALR tipo 2 (70%) con reticulina tipo 1: 3 ptes (44, 85%) y grado 2-3: 0 ptes. Conclusiones: La TE con mutación CALR parece comportarse de manera diferente en térmicos de características biológicas, hematológicas y clínicas frente a la mutación JAK2. Afecta a individuos relativamente jóvenes y se caracteriza por un recuento de plaquetas mayor pero con un riesgo trombótico inferior, especialmente los pacientes CALR tipo 2. Aunque en nuestra serie no encontramos grandes diferencias entre los subtipos de CALR, probablemente por el escaso número de ptes, creemos que ampliando la muestra existan diferencias entre ambos subgrupos que podrían implicar diferentes algoritmos terapéuticos
Increased lytic efficiency of bovine macrophages trained with killed mycobacteria
Innate immunity is evolutionarily conserved in multicellular organisms and was considered to lack memory until very recently. One of its more characteristic mechanisms is phagocytosis, the ability of cells to engulf, process and eventually destroy any injuring agent. We report the results of an ex vivo experiment in bovine macrophages in which improved clearance of Mycobacterium bovis (M. bovis) was induced by pre-exposure to a heat killed M. bovis preparation. The effects were independent of humoral and cellular adaptive immune responses and lasted up to six months. Specifically, our results demonstrate the existence of a training effect in the lytic phase of phagocytosis that can be activated by killed mycobacteria, thus suggesting a new mechanism of vaccine protection. These findings are compatible with the recently proposed concept of trained immunity, which was developed to explain the observation that innate immune responses provide unspecific protection against pathogens including other than those that originally triggered the immune response.Funding for these studies was provided by the EU project WildTBVac (Contract #613799) and by grants from the Instituto Nacional de Investigación y Tecnología Agraria y alimentaria (INIA, RTA2011-00049) and the Ministry of Science (MINECO, AGL2014-56305) and European Funds Regional Development (FEDER).Peer Reviewe
Parámetros de detección precoz de infección fúngica por aspergillus en el paciente hematológico
PO-267
Introducción: La infección fúngica invasiva (IFI) por Aspergillus es una de las principales micosis invasivas en el paciente hematológico y una importante causa de morbimortalidad. Es más frecuente en pacientes con leucemia aguda mieloide, trasplante de progenitores hematopoyéticos alogénico, enfermedad injerto contra receptor activa o neutropenia prolongada. Supone un reto diagnóstico, siendo preciso el empleo de múltiples técnicas microbiológicas y radiológicas. Avances recientes en el diagnóstico, en la profilaxos y en el tratamiento antifúngico precoz, han reducido considerablemente la mortalidad asociada a esta infección.
Objetivos: Determinar si los marcadores diagnósticos empleados en la práctica clínica habitual permiten un diagnóstico precoz de IFI, si la determinación de bismetilgliotoxina (bmGT) en suero permite un diagnóstico precoz en pacientes con antígeno de galactomanano (AGA) en suero negativo y la exactitud diagnóstica de estos marcadores. ..
Factors affecting survival in Mediterranean populations of the Eurasian eagle owl
The survival rate is a key parameter for population management and the monitoring of populations. Thus, an analysis of survival rate variations and the factors influencing the same is essential for understanding population dynamics. Here, we study the factors determining the survival and the causes of mortality of the Eurasian eagle owl (Bubo bubo) in two Spanish Mediterranean populations (Murcia and Seville) where the species has a high population density and breeding success; yet its survival rates and the factors that affect them are unknown. Between 2003 and 2010, 63 breeding owls were captured and radio-tracked. Three monthly (quarterly) survival rates were estimated using known-fate models in the program MARK. The mean overall annual survival rate was 0.776 (95Â % CI: 0.677, 0.875). We observed survival differences between sexes, and between the breeding and non-breeding periods, although no overwhelming support was found for any particular model. We concluded that (i) females have a lower survival rate than males, probably due to their larger home ranges, which increase the risk of mortality; (ii) the survival rates of both sexes were lower during the non-breeding period; and (iii) the causes of mortality differed significantly between the two populations, gunshot being the main cause in Seville and electrocution in Murcia.Peer Reviewe
Cut-offs and response criteria for the Hospital Universitario la Princesa Index (HUPI) and their comparison to widely-used indices of disease activity in rheumatoid arthritis
Objective To estimate cut-off points and to establish response criteria for the Hospital Universitario La Princesa Index (HUPI) in patients with chronic polyarthritis. Methods Two cohorts, one of early arthritis (Princesa Early Arthritis Register Longitudinal PEARL] study) and other of long-term rheumatoid arthritis (Estudio de la Morbilidad y Expresión Clínica de la Artritis Reumatoide EMECAR]) including altogether 1200 patients were used to determine cut-off values for remission, and for low, moderate and high activity through receiver operating curve (ROC) analysis. The areas under ROC (AUC) were compared to those of validated indexes (SDAI, CDAI, DAS28). ROC analysis was also applied to establish minimal and relevant clinical improvement for HUPI. Results The best cut-off points for HUPI are 2, 5 and 9, classifying RA activity as remission if =2, low disease activity if >2 and =5), moderate if >5 and <9 and high if =9. HUPI''s AUC to discriminate between low-moderate activity was 0.909 and between moderate-high activity 0.887. DAS28''s AUCs were 0.887 and 0.846, respectively; both indices had higher accuracy than SDAI (AUCs: 0.832 and 0.756) and CDAI (AUCs: 0.789 and 0.728). HUPI discriminates remission better than DAS28-ESR in early arthritis, but similarly to SDAI. The HUPI cut-off for minimal clinical improvement was established at 2 and for relevant clinical improvement at 4. Response criteria were established based on these cut-off values. Conclusions The cut-offs proposed for HUPI perform adequately in patients with either early or long term arthritis
Comparative Live-Cell Imaging Analyses of SPA-2, BUD-6 and BNI-1 in Neurospora crassa Reveal Novel Features of the Filamentous Fungal Polarisome
A key multiprotein complex involved in regulating the actin cytoskeleton and secretory machinery required for polarized growth in fungi, is the polarisome. Recognized core constituents in budding yeast are the proteins Spa2, Pea2, Aip3/Bud6, and the key effector Bni1. Multicellular fungi display a more complex polarized morphogenesis than yeasts, suggesting that the filamentous fungal polarisome might fulfill additional functions. In this study, we compared the subcellular organization and dynamics of the putative polarisome components BUD-6 and BNI-1 with those of the bona fide polarisome marker SPA-2 at various developmental stages of Neurospora crassa. All three proteins exhibited a yeast-like polarisome configuration during polarized germ tube growth, cell fusion, septal pore plugging and tip repolarization. However, the localization patterns of all three proteins showed spatiotemporally distinct characteristics during the establishment of new polar axes, septum formation and cytokinesis, and maintained hyphal tip growth. Most notably, in vegetative hyphal tips BUD-6 accumulated as a subapical cloud excluded from the Spitzenkörper (Spk), whereas BNI-1 and SPA-2 partially colocalized with the Spk and the tip apex. Novel roles during septal plugging and cytokinesis, connected to the reinitiation of tip growth upon physical injury and conidial maturation, were identified for BUD-6 and BNI-1, respectively. Phenotypic analyses of gene deletion mutants revealed additional functions for BUD-6 and BNI-1 in cell fusion regulation, and the maintenance of Spk integrity. Considered together, our findings reveal novel polarisome-independent functions of BUD-6 and BNI-1 in Neurospora, but also suggest that all three proteins cooperate at plugged septal pores, and their complex arrangement within the apical dome of mature hypha might represent a novel aspect of filamentous fungal polarisome architecture
Stellar kinematics across the Hubble sequence in the CALIFA survey: general properties and aperture corrections
We would like to thank the anonymous referee for constructive comments that helped improve some aspects of the original manuscript.
We are also grateful to the DiskMass survey team for sharing their data with
us for the spectral resolution tests, and to Marc Verheijen and Kyle Westfall
in particular for in-depth discussions on the topic. This study makes use of
the data provided by the Calar Alto Legacy Integral Field Area (CALIFA) survey (http://califa.caha.es). Based on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by
the Max-Planck-Institut für Astronomie and the Instituto de Astrofísica de Andalucía (CSIC). CALIFA is the first legacy survey being performed at Calar Alto.
The CALIFA collaboration would like to thank the IAA-CSIC and MPIA-MPG
as major partners of the observatory, and CAHA itself, for the unique access to
telescope time and support in manpower and infrastructures. The CALIFA collaboration thanks also the CAHA staff for the dedication to this project.We present the stellar kinematic maps of a large sample of galaxies from the integral-field spectroscopic survey CALIFA. The sample
comprises 300 galaxies displaying a wide range of morphologies across the Hubble sequence, from ellipticals to late-type spirals.
This dataset allows us to homogeneously extract stellar kinematics up to several effective radii. In this paper, we describe the level of
completeness of this subset of galaxies with respect to the full CALIFA sample, as well as the virtues and limitations of the kinematic
extraction compared to other well-known integral-field surveys. In addition, we provide averaged integrated velocity dispersion radial
profiles for different galaxy types, which are particularly useful to apply aperture corrections for single aperture measurements or
poorly resolved stellar kinematics of high-redshift sources. The work presented in this paper sets the basis for the study of more
general properties of galaxies that will be explored in subsequent papers of the survey.J. F.-B. from grant AYA2013-
48226-C3-1-P from the Spanish Ministry of Economy and Competitiveness
(MINECO). J.F.-B. and G.v.d.V. from the FP7 Marie Curie Actions of the European Commission, via the Initial Training Network DAGAL under REA grant
agreement number 289313. J.M.-A. and V.W. acknowledge support from the European Research Council Starting Grant (SEDMorph P.I. V. Wild). P.S.-B. acknowledge financial support from the BASAL CATA Center for Astrophysics
and Associated Technologies through grant PFB-06. R.M.G.D. from grant
AYA2014-57490-P. R.G.-B, R.M.G.D. and E.P. acknowledge support from the
project JA-FQM-2828. C.J.W. acknowledges support through the Marie Curie
Career Integration Grant 303912. L.G. from the Ministry of Economy, Development, and Tourism’s Millennium Science Initiative through grant IC120009
awarded to The Millennium Institute of Astrophysics (MAS), and CONICYT
through FONDECYT grant 3140566. I.M. from grant AYA2013-42227-P
The management of acute venous thromboembolism in clinical practice. Results from the European PREFER in VTE Registry
Venous thromboembolism (VTE) is a significant cause of morbidity and mortality in Europe. Data from real-world registries are necessary, as clinical trials do not represent the full spectrum of VTE patients seen in clinical practice. We aimed to document the epidemiology, management and outcomes of VTE using data from a large, observational database. PREFER in VTE was an international, non-interventional disease registry conducted between January 2013 and July 2015 in primary and secondary care across seven European countries. Consecutive patients with acute VTE were documented and followed up over 12 months. PREFER in VTE included 3,455 patients with a mean age of 60.8 ± 17.0 years. Overall, 53.0 % were male. The majority of patients were assessed in the hospital setting as inpatients or outpatients (78.5 %). The diagnosis was deep-vein thrombosis (DVT) in 59.5 % and pulmonary embolism (PE) in 40.5 %. The most common comorbidities were the various types of cardiovascular disease (excluding hypertension; 45.5 %), hypertension (42.3 %) and dyslipidaemia (21.1 %). Following the index VTE, a large proportion of patients received initial therapy with heparin (73.2 %), almost half received a vitamin K antagonist (48.7 %) and nearly a quarter received a DOAC (24.5 %). Almost a quarter of all presentations were for recurrent VTE, with >80 % of previous episodes having occurred more than 12 months prior to baseline. In conclusion, PREFER in VTE has provided contemporary insights into VTE patients and their real-world management, including their baseline characteristics, risk factors, disease history, symptoms and signs, initial therapy and outcomes
- …