1,615 research outputs found

    Budgetary impact for the National Health System of Apixaban Prophylaxis of venous thromboembolism in patients undergoing yotal knee or hip replacement

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    Fundamentos: Debido al elevado coste sanitario del tromboembolismo venoso (TEV) es necesario realizar análisis económicos que determinen la eficiencia de sus diferentes tratamientos farmacológicos. El objetivo del trabajo es estimar el impacto presupuestario para el Sistema Nacional de Salud (SNS) de la prevención del tromboembolismo venoso (TEV) con apixaban en artroplastia total de cadera (ATC) o rodilla (ATR). Métodos: Se consideraron los costes de los diferentes fármacos para la prevención del TEV (apixaban, dabigatrán, enoxaparina, fondaparinux, otras heparinas, rivaroxaban y warfarina) y los de las complicaciones del TEV a corto plazo (90 días) y a 5 años (trombosis venosa profunda, embolismo pulmonar, sangrados y síndrome postrombótico). La eficacia de la prevención se estimó mediante un metaanálisis. Las tasas de TEV y muerte con apixaban fueron inferiores en ATC y ATR a las observadas con enoxaparina (-3,5% y -10,0%, respectivamente) y tuvo menos acontecimientos hemorrágicos (-0,7% y -1,6%, respectivamente). Los datos poblacionales y los costes se obtuvieron de fuentes españolas. Horizonte temporal: 5 años. Todos los costes se descontaron anualmente un 3,5%. Se estimó que a los cinco años de su comercialización el consumo de apixaban supondría el 23% de la prevención del TEV y el de enoxaparina descendería del 60% hasta el 33%. Resultados: La introducción de apixaban para la prevención del TEV produciría un ahorro para el SNS de 547.422 € en un periodo de 5 años. En el caso de considerar sin coste la administración ambulatoria de las heparinas, el ahorro quinquenal para el SNS ascendería a 270.068 €. Conclusiones: La introducción de apixaban podría reducir la tasa de TEV y sangrados en comparación con enoxaparina, reduciéndose el gasto del SNS en la prevención del TEVDue to high health care costs of venous thromboembolism (VTE), economic analyses are needed to determine the efficiency of different drug treatments. Consequently, a study was conducted to estimate the budgetary impact for the National Health System (NHS) with apixaban for prevention of venous thromboembolism (VTE) in total hip (THR) or knee (TKR) replacement. Methods: Cost considered: the drugs for the prevention of VTE (apixaban, dabigatran, enoxaparin, fondaparinux, other heparins, rivaroxaban and warfarin) and the complications of VTE in the short term and in 5 years (deep vein thrombosis, pulmonary embolism, bleedings and the post-thrombotic syndrome). The effectiveness of prophylaxis was estimated using a meta-analysis. The VTE rates and death with apixaban are lower in THR and TKR than enoxaparin (-3.5% and -10.0%, respectively) with less bleeding events (-0.7% and -1.6%, respectively). Population data and unit costs were obtained from Spanish sources. Time horizon: 5 years. All costs were discounted by 3.5% annually. Five years after commercialization, the use of apixaban was estimated to account for 23% of the prophylaxis of VTE and the use of enoxaparin decrease from the 60% to 33%. Results: Apixaban´s introduction for the prophylaxis of VTE would have a significant impact for the NHS, resulting in a saving of 547,422 over a period of 5 years. In the case of outpatient administration of heparin did not have a cost, the savings for the NHS five years amount to Due to high health care costs of venous thromboembolism (VTE), economic analyses are needed to determine the efficiency of different drug treatments. Consequently, a study was conducted to estimate the budgetary impact for the National Health System (NHS) with apixaban for prevention of venous thromboembolism (VTE) in total hip (THR) or knee (TKR) replacement. Methods: Cost considered: the drugs for the prevention of VTE (apixaban, dabigatran, enoxaparin, fondaparinux, other heparins, rivaroxaban and warfarin) and the complications of VTE in the short term and in 5 years (deep vein thrombosis, pulmonary embolism, bleedings and the post-thrombotic syndrome). The effectiveness of prophylaxis was estimated using a meta-analysis. The VTE rates and death with apixaban are lower in THR and TKR than enoxaparin (-3.5% and -10.0%, respectively) with less bleeding events (-0.7% and -1.6%, respectively). Population data and unit costs were obtained from Spanish sources. Time horizon: 5 years. All costs were discounted by 3.5% annually. Five years after commercialization, the use of apixaban was estimated to account for 23% of the prophylaxis of VTE and the use of enoxaparin decrease from the 60% to 33%. Results: Apixaban´s introduction for the prophylaxis of VTE would have a significant impact for the NHS, resulting in a saving of 547,422 over a period of 5 years. In the case of outpatient administration of heparin did not have a cost, the savings for the NHS five years amount to 270,068. Conclusions: According to this study, the introduction of apixaban may reduce the rate of VTE and bleeding compared with enoxaparin, decreasing the expenditure of NHS in VTE prophylaxis Due to high health care costs of venous thromboembolism (VTE), economic analyses are needed to determine the efficiency of different drug treatments. Consequently, a study was conducted to estimate the budgetary impact for the National Health System (NHS) with apixaban for prevention of venous thromboembolism (VTE) in total hip (THR) or knee (TKR) replacement. Methods: Cost considered: the drugs for the prevention of VTE (apixaban, dabigatran, enoxaparin, fondaparinux, other heparins, rivaroxaban and warfarin) and the complications of VTE in the short term and in 5 years (deep vein thrombosis, pulmonary embolism, bleedings and the post-thrombotic syndrome). The effectiveness of prophylaxis was estimated using a meta-analysis. The VTE rates and death with apixaban are lower in THR and TKR than enoxaparin (-3.5% and -10.0%, respectively) with less bleeding events (-0.7% and -1.6%, respectively). Population data and unit costs were obtained from Spanish sources. Time horizon: 5 years. All costs were discounted by 3.5% annually. Five years after commercialization, the use of apixaban was estimated to account for 23% of the prophylaxis of VTE and the use of enoxaparin decrease from the 60% to 33%. Results: Apixaban´s introduction for the prophylaxis of VTE would have a significant impact for the NHS, resulting in a saving of € 547,422 over a period of 5 years. In the case of outpatient administration of heparin did not have a cost, the savings for the NHS five years amount to 270,068. Conclusions: According to this study, the introduction of apixaban may reduce the rate of VTE and bleeding compared with enoxaparin, decreasing the expenditure of NHS in VTE prophylaxis € 270,068. Conclusions: According to this study, the introduction of apixaban may reduce the rate of VTE and bleeding compared with enoxaparin, decreasing the expenditure of NHS in VTE prophylaxisEstudio financiado, sin restricciones, por Bristol-Myers Squibb y Pfize

    Neonatal Exposure to Bisphenol A Alters Reproductive Parameters and Gonadotropin Releasing Hormone Signaling in Female Rats

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    Bisphenol A (BPA) is a component of polycarbonate plastics, epoxy resins, and polystyrene and is found in many products. Several reports have revealed potent in vivo effects, because BPA acts as an estrogen agonist and/or antagonist and as an androgen and thyroid hormone antagonist We analyzed the effects of neonatal exposure to BPA on the reproductive axis of female Sprague-Dawley rats.Fil: Fernandez, Marina Olga. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaFil: Bianchi, Maria Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaFil: Lux, Victoria Adela R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaFil: Libertun, Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentin

    Transmission dynamics of an iridescent virus in an experimental mosquito population: the role of host density.

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    1. The transmission of insect pathogens cannot be adequately described by direct linear functions of host and pathogen density due to heterogeneity generated from behavioural or physiological traits, or from the spatial distribution of pathogen particles. Invertebrate iridescent viruses (IIVs) can cause patent and lethal infection or a covert sub-lethal infection in insects. Aedes aegypti larvae were exposed to suspensions of IIV type 6 at two densities. High larval density increased the prevalence of aggression resulting in potentially fatal wounding. 2. The overall prevalence of infection (patent + covert) was positively influenced by host density and increased with exposure time in both densities. The survival time of patently infected insects was extended by ≈ 5 days compared with non-infected insects. 3. Maximum likelihood models based on the binomial distribution were fitted to empirical results. A model incorporating heterogeneity in host susceptibility by inclusion of a pathogen-free refuge was a significantly better fit to data than an all-susceptible model, indicating that transmission is non-linear. The transmission coefficient (υ) did not differ with host density whereas the faction of the population that occupied the pathogen-free refuge (ΠR) was significantly reduced at high host density compared with the low density treatment. 4. The transmission of free-living infective stages of an IIV in Ae. aegypti larvae is non-linear, probably because of density-related changes in the frequency of aggressive encounters between hosts. This alters host susceptibility to infection and effectively reduces the proportion of hosts that occupy the pathogen-free refuge

    Piezo2 channel regulates RhoA and actin cytoskeleton to promote cell mechanobiological responses

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    Actin polymerization and assembly into stress fibers (SFs) is central to many cellular processes. However, how SFs form in response to the mechanical interaction of cells with their environment is not fully understood. Here we have identified Piezo2 mechanosensitive cationic channel as a transducer of environmental physical cues into mechanobiological responses. Piezo2 is needed by brain metastatic cells from breast cancer (MDA-MB-231-BrM2) to probe their physical environment as they anchor and pull on their surroundings or when confronted with confined migration through narrow pores. Piezo2-mediated Ca2+ influx activates RhoA to control the formation and orientation of SFs and focal adhesions (FAs). A possible mechanism for the Piezo2-mediated activation of RhoA involves the recruitment of the Fyn kinase to the cell leading edge as well as calpain activation. Knockdown of Piezo2 in BrM2 cells alters SFs, FAs, and nuclear translocation of YAP; a phenotype rescued by overexpression of dominant-positive RhoA or its downstream effector, mDia1. Consequently, hallmarks of cancer invasion and metastasis related to RhoA, actin cytoskeleton, and/or force transmission, such as migration, extracellular matrix degradation, and Serpin B2 secretion, were reduced in cells lacking Piezo2

    Pharmacological Blockade of NLRP3 Inflammasome/IL1β-Positive Loop Mitigates Endothelial Cell Senescence and Dysfunction

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    The clinical relevance of IL-1β in chronic inflammation underlying atherosclerosis has been reinforced by recent evidence associating pharmacological inhibition of the cytokine with lower cardiovascular risk. Previously, we have demonstrated a direct involvement of IL-1β in endothelial senescence. Therefore, this can be a key mechanism contributing to the sterile inflammatory milieu associated with aging, termed inflammaging. In the present study, we have evaluated whether a positive feedback of IL-1β in the NLRP3 inflammasome via NF-κB could promote human endothelial senescence in vitro and murine endothelial dysfunction in vivo. Our results indicate that the NLRP3 inflammasome is pivotal in mediating the detrimental effects of IL-1β, showing that auto-activation is a crucial feature boosting endothelial cell senescence in vitro, which is paralleled by vascular dysfunction in vivo. Hence, the inhibitor of NLRP3 inflammasome assembly, MCC 950, was able to disrupt the aforementioned positive loop, thus alleviating inflammation, cell senescence and vascular dysfunction. Besides, we explored alternative NLRP3 inflammasome inhibitory agents such as the RAS heptapeptide Ang-(1-7) and the anti-aging protein klotho, both of which demonstrated protective effects in vitro and in vivo. Altogether, our results highlight a fundamental role for the hereby described NLRP3 inflammasome/IL-1β positive feedback loop in stress-induced inflammaging and the associated vascular dysfunction, additionally providing evidence of a potential therapeutic use of MCC 950, Ang-(1-7) and recombinant klotho to block this loop and its deleterious effectsThis work has been supported by funding from 1) Plan Nacional I+D (PID2020-115590RB100/AEI/ 10.13039/501100011033) to C.P. and C.F.S-F; 2) Talent Advanced Researchers' Grant from Comunidad Autónoma de Madrid (2019-T1/IND-13794) to F.C., and 3) FONDECYT 1130300 to G.D.A. P.D. is recipient of a European social fund and Comunidad Autónoma de Madrid fellowship (PEJ-2018-AI/SAL-9955). I.V. is supported by an FPU-MECD fellowship (FPU16/02612

    Revista de Vertebrados de la Estación Biológica de Doñana

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    The structure of a mediterranean lizard communityDiet of the eagle owl (Bubo bubo) in mediterranean SpainTamaño de la puesta y mortalidad entre los pollos del Aguila Real ibérica (Aquila chrysaetos homeyeriDistribución y frecuencia de la cópula del buitre leonado (Gyps fulvus) en el Sur de EspañaRégimen alimenticio del calamón (Porphyrio porphyrio) en las Marismas del GuadalquivilVisible migration over the Colo Doñana, Spring 1973Diet of the Red Fox (Vulpes vulpes) in the western Sierra Morena (South Spain).Microestructura del esmalte en los incisivos de Roedores. l. Variaciones con la edadDistribution and habitat of the Barbary macaque (Macaca sylvana) in North MoroccoNotas sobre distribución de los peces fluviales en el Suroeste de España.Nuevas localidades de Valencia hispanica (Pisces:Ciprinodontidae) en el Suroeste de España.Hallazgo de Natrix mauro albinaNidificación del Phoenicopterus ruber en las Marismas del Bajo GuadalquivirNido de Aythya ferina parasitado por Fulica atraNuevos datos sobre la distribución de algunos micromamífesl ibéricos (Microtus arvalís ,M. cabrerae, M. agrestís y Sorex minutus).Neomys anomalus: Nueva localidad en el Suroeste de EspañaPeer reviewe

    Diversity of mosquitoes and the aquatic insects associated with their oviposition sites along the Pacific coast of Mexico

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    Background: The abundance, richness and diversity of mosquitoes and aquatic insects associated with their oviposition sites were surveyed along eight states of the Pacific coast of Mexico. Diversity was estimated using the Shannon index (H’), similarity measures and cluster analysis. Methods: Oviposition sites were sampled during 2–3 months per year, over a three year period. Field collected larvae and pupae were reared and identified to species following adult emergence. Aquatic insects present at oviposition sites were also collected, counted and identified to species or genus. Results: In total, 15 genera and 74 species of mosquitoes were identified: Anopheles pseudopunctipennis, An. albimanus and Aedes aegypti were the most abundant and widely-distributed species, representing 47% of total mosquito individuals sampled. New species records for certain states are reported. Anopheline diversity was lowest in Sinaloa state (H’ = 0.54) and highest in Chiapas (H’ = 1.61) and Michoacán (H’ = 1.56), whereas culicid diversity was lowest in Michoacán (H’ = 1.93), Colima (H’ = 1.95), Sinaloa (H’ = 1.99) and Jalisco (H’ = 2.01) and highest in Chiapas (H’ = 2.66). In total, 10 orders, 57 families, 166 genera and 247 species of aquatic insects were identified in samples. Aquatic insect diversity was highest in Chiapas, Oaxaca and Michoacán (H’ = 3.60-3.75). Mosquito larval/pupal abundance was not correlated with that of predatory Coleoptera and Hemiptera. Conclusion: This represents the first update on the diversity and geographic distribution of the mosquitoes and aquatic insects of Mexico in over five decades. This information has been cataloged in Mexico’s National Biodiversity Information System (SNIB-CONABIO) for public inspection

    Responding to the need of postgraduate education for Planetary Health : Development of an online Master's Degree

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    Unidad de excelencia María de Maeztu CEX2019-000940-MAltres ajuts: CERCA Programme/Generalitat de CatalunyaPlanetary Health has emerged as a new approach to respond to the existential risks that the clime and global environmental crises pose to human societies. As stated by various stakeholders, the challenges involved in Planetary Health are of such magnitude that education must be at the forefront to obtain a meaningful response. Universities and higher education institutions have been specifically called to embed the concept of planetary stewardship in all curricula and train the next generation of researchers and change makers as a matter of urgency. As a response to this call, the Universitat Oberta de Catalunya (UOC), the Universitat Pompeu Fabra (UPF), and the Barcelona Institute for Global Health (ISGlobal) developed the first online and asynchronous Master in Science (MSc) in Planetary Health. The aim of the programme is to train a new generation of academics and professionals who understand the challenges of Planetary Health and have tools to tackle them. This article describes the development of the curriculum of this MSc, presents the main characteristics of the programme and discusses some of the challenges encountered in the development of the programme and its implementation. The design of this MSc was based on: the alignment of the programme with the principles for Planetary Health education with a focus on human health; a multi-, inter-, and trans-disciplinary approach; the urgency to respond to the Anthropocene challenges; and the commitment to the 2030 Agenda. The MSc was recognized as an official degree by the Agency for Quality of the Catalan University System, included in the European Quality Assurance Register for Higher Education, and the Spanish National Academic Coordination body in April 2021 and launched in October 2021. There are currently more than 50 students enrolled in the program coming from a broad range of disciplines and geographic locations. The information presented in this article and the discussion on challenges encountered in developing and implementing the programme can be useful for those working in the development of similar programs

    Leishmania (L.) mexicana infected bats in Mexico: novel potential reservoirs

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    Leishmania (Leishmania) mexicana causes cutaneous leishmaniasis, an endemic zoonosis affecting a growing number of patients in the southeastern states of Mexico. Some foci are found in shade-grown cocoa and coffee plantations, or near perennial forests that provide rich breeding grounds for the sand fly vectors, but also harbor a variety of bat species that live off the abundant fruits provided by these shade-giving trees. The close proximity between sand flies and bats makes their interaction feasible, yet bats infected with Leishmania (L.) mexicana have not been reported. Here we analyzed 420 bats from six states of Mexico that had reported patients with leishmaniasis. Tissues of bats, including skin, heart, liver and/or spleen were screened by PCR for Leishmania (L.) mexicana DNA. We found that 41 bats (9.77%), belonging to 13 species, showed positive PCR results in various tissues. The infected tissues showed no evidence of macroscopic lesions. Of the infected bats, 12 species were frugivorous, insectivorous or nectarivorous, and only one species was sanguivorous (Desmodus rotundus), and most of them belonged to the family Phyllostomidae. The eco-region where most of the infected bats were caught is the Gulf Coastal Plain of Chiapas and Tabasco. Through experimental infections of two Tadarida brasiliensis bats in captivity, we show that this species can harbor viable, infective Leishmania (L.) mexicana parasites that are capable of infecting BALB/c mice. We conclude that various species of bats belonging to the family Phyllostomidae are possible reservoir hosts for Leishmania (L.) mexicana, if it can be shown that such bats are infective for the sand fly vector. Further studies are needed to determine how these bats become infected, how long the parasite remains viable inside these potential hosts and whether they are infective to sand flies to fully evaluate their impact on disease epidemiology
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