91 research outputs found
Identification of the molecular changes underlying head morphology variation in closely related Drosophila species
Phylogeography in an "oyster" shell provides first insights into the genetic structure of an extinct Ostrea edulis population
The historical phylogeography of Ostrea edulis was successfully depicted in its native range for the first time using ancient DNA methods on dry shells from museum collections. This research reconstructed the historical population structure of the European flat oyster across Europe in the 1870s-including the now extinct population in the Wadden Sea. In total, four haplogroups were identified with one haplogroup having a patchy distribution from the North Sea to the Atlantic coast of France. This irregular distribution could be the result of translocations. The other three haplogroups are restricted to narrow geographic ranges, which may indicate adaptation to local environmental conditions or geographical barriers to gene flow. The phylogenetic reconstruction of the four haplogroups suggests the signatures of glacial refugia and postglacial expansion. The comparison with present-day O. edulis populations revealed a temporally stable population genetic pattern over the past 150 years despite large-scale translocations. This historical phylogeographic reconstruction was able to discover an autochthonous population in the German and Danish Wadden Sea in the late nineteenth century, where O. edulis is extinct today. The genetic distinctiveness of a now-extinct population hints at a connection between the genetic background of O. edulis in the Wadden Sea and for its absence until today
Comparative genomics uncovers unique gene turnover and evolutionary rates in a gene family involved in the detection of insect cuticular pheromones
Chemoreception is an essential process for the survival and reproduction of animals. Many of the proteins responsible for recognizing and transmitting chemical stimuli in insects are encoded by genes that are members of moderately sized multigene families. The members of the CheB family are specialized in gustatory-mediated detection of long-chain hydrocarbon pheromones in Drosophila melanogaster and play a central role in triggering and modulating mating behavior in this species. Here, we present a comprehensive comparative genomic analysis of the CheB family across 12 species of the Drosophila genus. We have identified a total of 102 new CheB genes in the genomes of these species, including a functionally divergent member previously uncharacterized in D. melanogaster. We found that, despite its relatively small repertory size, the CheB family has undergone multiple gain and loss events and various episodes of diversifying selection during the divergence of the surveyed species. Present estimates of gene turnover and coding sequence substitution rates show that this family is evolving faster than any known Drosophila chemosensory family. To date, only other insect gustatory-related genes among these families had shown evolutionary dynamics close to those observed in CheBs. Our findings reveal the high adaptive potential of molecular components of the gustatory system in insects and anticipate a key role of genes involved in this sensory modality in species adaptation and diversification
Estrategia de aprendizaje interactivo para la mejora de la aplicación de la competencia matemática en el entorno de la Farmacia Galénica: Impacto de las primeras acciones de mejora sobre el rendimiento de los alumnos
Projecte: 2015PID-UB/039Se presentan los avances del Grupo de Innovación Docente de Tecnología Farmacéutica (GIDTF) en su línea de actuación relativa a la implementación de una estrategia de aprendizaje interactivo en los seminarios de problemas de Farmacia Galénica para el desarrollo de la competencia matemática en este ámbito por los estudiantes del grado de Farmacia. Las acciones realizadas incluyen actividades individuales de autoevaluación para detectar el nivel de capacidad resolutiva a modo de diagnóstico y otras grupales para fomentar un aprendizaje entre iguales.
Se confirma que las acciones de mejora en la estrategia de enseñanza-aprendizaje implantada en curso 2015-16, respecto al desarrollo de la competencia matemática en Farmacia Galénica, han dado los resultados benéficos esperados.Universidad de Barcelon
recommendations from the CVBD World Forum
The human-animal bond has been a fundamental feature of mankind's history for
millennia. The first, and strongest of these, man's relationship with the dog,
is believed to pre-date even agriculture, going back as far as 30,000 years.
It remains at least as powerful today. Fed by the changing nature of the
interactions between people and their dogs worldwide and the increasing
tendency towards close domesticity, the health of dogs has never played a more
important role in family life. Thanks to developments in scientific
understanding and diagnostic techniques, as well as changing priorities of pet
owners, veterinarians are now able, and indeed expected, to play a fundamental
role in the prevention and treatment of canine disease, including canine
vector-borne diseases (CVBDs).The CVBDs represent a varied and complex group
of diseases, including anaplasmosis, babesiosis, bartonellosis, borreliosis,
dirofilariosis, ehrlichiosis, leishmaniosis, rickettsiosis and thelaziosis,
with new syndromes being uncovered every year. Many of these diseases can
cause serious, even life-threatening clinical conditions in dogs, with a
number having zoonotic potential, affecting the human population.Today, CVBDs
pose a growing global threat as they continue their spread far from their
traditional geographical and temporal restraints as a result of changes in
both climatic conditions and pet dog travel patterns, exposing new populations
to previously unknown infectious agents and posing unprecedented challenges to
veterinarians.In response to this growing threat, the CVBD World Forum, a
multidisciplinary group of experts in CVBDs from around the world which meets
on an annual basis, gathered in Nice (France) in 2011 to share the latest
research on CVBDs and discuss the best approaches to managing these diseases
around the world.As a result of these discussions, we, the members of the CVBD
Forum have developed the following recommendations to veterinarians for the
management of CVBDs
Vector-Borne Diseases - constant challenge for practicing veterinarians: recommendations from the CVBD World Forum
The human-animal bond has been a fundamental feature of mankind's history for millennia. The first, and strongest of these, man's relationship with the dog, is believed to pre-date even agriculture, going back as far as 30,000 years. It remains at least as powerful today. Fed by the changing nature of the interactions between people and their dogs worldwide and the increasing tendency towards close domesticity, the health of dogs has never played a more important role in family life. Thanks to developments in scientific understanding and diagnostic techniques, as well as changing priorities of pet owners, veterinarians are now able, and indeed expected, to play a fundamental role in the prevention and treatment of canine disease, including canine vector-borne diseases (CVBDs)
The first myriapod genome sequence reveals conservative arthropod gene content and genome organisation in the centipede Strigamia maritima.
Myriapods (e.g., centipedes and millipedes) display a simple homonomous body plan relative to other arthropods. All members of the class are terrestrial, but they attained terrestriality independently of insects. Myriapoda is the only arthropod class not represented by a sequenced genome. We present an analysis of the genome of the centipede Strigamia maritima. It retains a compact genome that has undergone less gene loss and shuffling than previously sequenced arthropods, and many orthologues of genes conserved from the bilaterian ancestor that have been lost in insects. Our analysis locates many genes in conserved macro-synteny contexts, and many small-scale examples of gene clustering. We describe several examples where S. maritima shows different solutions from insects to similar problems. The insect olfactory receptor gene family is absent from S. maritima, and olfaction in air is likely effected by expansion of other receptor gene families. For some genes S. maritima has evolved paralogues to generate coding sequence diversity, where insects use alternate splicing. This is most striking for the Dscam gene, which in Drosophila generates more than 100,000 alternate splice forms, but in S. maritima is encoded by over 100 paralogues. We see an intriguing linkage between the absence of any known photosensory proteins in a blind organism and the additional absence of canonical circadian clock genes. The phylogenetic position of myriapods allows us to identify where in arthropod phylogeny several particular molecular mechanisms and traits emerged. For example, we conclude that juvenile hormone signalling evolved with the emergence of the exoskeleton in the arthropods and that RR-1 containing cuticle proteins evolved in the lineage leading to Mandibulata. We also identify when various gene expansions and losses occurred. The genome of S. maritima offers us a unique glimpse into the ancestral arthropod genome, while also displaying many adaptations to its specific life history.This work was supported by the following grants: NHGRIU54HG003273 to R.A.G; EU Marie Curie ITN #215781 “Evonet” to M.A.; a Wellcome Trust Value in People (VIP) award to C.B. and Wellcome Trust graduate studentship WT089615MA to J.E.G; Marine
rhythms of Life” of the University of Vienna, an FWF (http://www.fwf.ac.at/) START award (#AY0041321) and HFSP (http://www.hfsp.org/) research grant (#RGY0082/2010) to KT-‐R; MFPL Vienna International PostDoctoral Program for Molecular Life Sciences (funded by Austrian Ministry of Science and Research and City of Vienna, Cultural Department -‐Science and Research to T.K; Direct Grant (4053034) of the Chinese University of Hong Kong to J.H.L.H.; NHGRI HG004164 to G.M.; Danish Research Agency (FNU), Carlsberg Foundation, and Lundbeck Foundation to C.J.P.G.; U.S. National Institutes of Health R01AI55624 to J.H.W.; Royal Society University Research fellowship to F.M.J.; P.D.E. was supported by the BBSRC via the Babraham Institute;This is the final version of the article. It first appeared from PLOS via http://dx.doi.org/10.1371/journal.pbio.100200
Ética Profesional y Responsabilidad Social Universitaria
este libro compila reflexiones y experiencias en responsabilidad social y ética profesional desde instituciones de Educación Superior. La responsabilidad social universitaria, como ámbito de investigación y de desarrollo conceptual y metodológico es transversal a las universidades, tanto desde el punto de vista organizacional, como desde el misional e investigativo. Quienes impulsen la responsabilidad social, requieren de ética profesional, que debe ser la clave para la construcción de principios que guíen a empresarios, políticos, gestores sociales, investigadores, entre otros, para lograr consensuar el a veces difícil equilibrio entre el bien común y el desarrollo personal
RICORS2040 : The need for collaborative research in chronic kidney disease
Chronic kidney disease (CKD) is a silent and poorly known killer. The current concept of CKD is relatively young and uptake by the public, physicians and health authorities is not widespread. Physicians still confuse CKD with chronic kidney insufficiency or failure. For the wider public and health authorities, CKD evokes kidney replacement therapy (KRT). In Spain, the prevalence of KRT is 0.13%. Thus health authorities may consider CKD a non-issue: very few persons eventually need KRT and, for those in whom kidneys fail, the problem is 'solved' by dialysis or kidney transplantation. However, KRT is the tip of the iceberg in the burden of CKD. The main burden of CKD is accelerated ageing and premature death. The cut-off points for kidney function and kidney damage indexes that define CKD also mark an increased risk for all-cause premature death. CKD is the most prevalent risk factor for lethal coronavirus disease 2019 (COVID-19) and the factor that most increases the risk of death in COVID-19, after old age. Men and women undergoing KRT still have an annual mortality that is 10- to 100-fold higher than similar-age peers, and life expectancy is shortened by ~40 years for young persons on dialysis and by 15 years for young persons with a functioning kidney graft. CKD is expected to become the fifth greatest global cause of death by 2040 and the second greatest cause of death in Spain before the end of the century, a time when one in four Spaniards will have CKD. However, by 2022, CKD will become the only top-15 global predicted cause of death that is not supported by a dedicated well-funded Centres for Biomedical Research (CIBER) network structure in Spain. Realizing the underestimation of the CKD burden of disease by health authorities, the Decade of the Kidney initiative for 2020-2030 was launched by the American Association of Kidney Patients and the European Kidney Health Alliance. Leading Spanish kidney researchers grouped in the kidney collaborative research network Red de Investigación Renal have now applied for the Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS) call for collaborative research in Spain with the support of the Spanish Society of Nephrology, Federación Nacional de Asociaciones para la Lucha Contra las Enfermedades del Riñón and ONT: RICORS2040 aims to prevent the dire predictions for the global 2040 burden of CKD from becoming true
Plan gallego de hospitalización a domicilio. Estrategia HADO 2019-2023
Documento estratéxico que pretende potenciar e consolidar a hospitalización a domicilio como un modelo asistencial do Servizo Galego de Saúde e garantir o seu desenvolvemento nos próximos seis anos, establecendo criterios homoxéneos de atención coa finalidade de normalizar os modelos asistenciais, carteira de servizos e fluxos de traballo para asegurar una asistencia sanitaria de calidadeDocumento estratégico que pretende potenciar y consolidar la hospitalización a domicilio como un modelo asistencial del Servicio Gallego de Salud y garantizar su desarrollo en los próximos seis años, estableciendo criterios homogéneos de atención con la finalidad de normalizar los modelos asistenciales, cartera de servicios y flujos de trabajo para asegurar una asistencia sanitaria de calida
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