22 research outputs found

    PS Integrins and Laminins: Key Regulators of Cell Migration during Drosophila Embryogenesis

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    During embryonic development, there are numerous cases where organ or tissue formation depends upon the migration of primordial cells. In the Drosophila embryo, the visceral mesoderm (vm) acts as a substrate for the migration of several cell populations of epithelial origin, including the endoderm, the trachea and the salivary glands. These migratory processes require both integrins and laminins. The current model is that αPS1ÎČPS (PS1) and/or αPS3ÎČPS (PS3) integrins are required in migrating cells, whereas αPS2ÎČPS (PS2) integrin is required in the vm, where it performs an as yet unidentified function. Here, we show that PS1 integrins are also required for the migration over the vm of cells of mesodermal origin, the caudal visceral mesoderm (CVM). These results support a model in which PS1 might have evolved to acquire the migratory function of integrins, irrespective of the origin of the tissue. This integrin function is highly specific and its specificity resides mainly in the extracellular domain. In addition, we have identified the Laminin α1,2 trimer, as the key extracellular matrix (ECM) component regulating CVM migration. Furthermore, we show that, as it is the case in vertebrates, integrins, and specifically PS2, contributes to CVM movement by participating in the correct assembly of the ECM that serves as tracks for migration

    Guia de prĂ ctica clĂ­nica: tractament del dolor oncolĂČgic pediĂ tric

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    Dolor oncolĂČgic pediĂ tric; CĂ ncer; Tractament; RegistreDolor oncolĂłgico pediĂĄtrico; CĂĄncer; Tratamiento; RegistroPediatric oncological pain; Cancer; Treatment; RegistryEl dolor oncolĂČgic pediĂ tric Ă©s un problema clĂ­nic rellevant a l'Hospital Vall d'hebron i les dades de quĂš es disposa sobre el seu tractament sĂłn escasses. Aquest document s'ha desenvolupat per millorar el registre i el tractament del dolor en nens amb cĂ ncer atesos a l’Hospital, sobre la base de l’evidĂšncia cientĂ­fica de quĂš es disposa. Es pretĂ©n aconseguir que, d’una banda, la mesura del dolor es faci de forma regular, amb la metodologia adequada i es registri sistemĂ ticament a la histĂČria clĂ­nica. De l’altra, utilitzar les estratĂšgies de tractament del dolor, tant farmacolĂČgiques com no farmacolĂČgiques; mĂ©s efectives i segures per a aquest tipus de poblaciĂł. La utilitzaciĂł prĂ ctica d’aquesta publicaciĂł s’ha de considerar com una guia; no es pretĂ©n anteposar-la al judici clĂ­nic

    Guia de prĂ ctica clĂ­nica: abordatge del tractament del dolor neuropĂ tic

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    Dolor neuropàtic; Epidemiologia; Hospital; Atenció primàriaDolor neuropåtico; Epidemiología; Hospital; Atención primariaNeuropathic pain; Epidemiology; Hospital; Primary careLa Guia pretén estructurar i consensuar l'atenció dels malalts amb dolor neuropàtic dins del nostre territori. S'especifiquen intervencions preventives i terapÚutiques, així com a quin nivell el malalts han de ser atesos en funció de la seva situació clínica i la seva complexitat, els fluxos i metodologia bàsica de derivacions. Es vol potenciar un abordatge transversal i integral del dolor neuropàtic, que abasta l'atenció primària i l'atenció especialitzada hospitalària, i promoure la continuïtat assistencial entre ambdós nivells assistencials, tenint en compte intervencions i criteris compartits, per tal de disminuir la variabilitat de la pràctica clínica i millorar la qualitat i seguretat del pacient

    Outcomes from elective colorectal cancer surgery during the SARS-CoV-2 pandemic

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    This study aimed to describe the change in surgical practice and the impact of SARS-CoV-2 on mortality after surgical resection of colorectal cancer during the initial phases of the SARS-CoV-2 pandemic

    Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

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    Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

    Guia de prĂ ctica clĂ­nica: tractament del dolor oncolĂČgic pediĂ tric

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    Dolor oncolĂČgic pediĂ tric; CĂ ncer; Tractament; RegistreDolor oncolĂłgico pediĂĄtrico; CĂĄncer; Tratamiento; RegistroPediatric oncological pain; Cancer; Treatment; RegistryEl dolor oncolĂČgic pediĂ tric Ă©s un problema clĂ­nic rellevant a l'Hospital Vall d'hebron i les dades de quĂš es disposa sobre el seu tractament sĂłn escasses. Aquest document s'ha desenvolupat per millorar el registre i el tractament del dolor en nens amb cĂ ncer atesos a l’Hospital, sobre la base de l’evidĂšncia cientĂ­fica de quĂš es disposa. Es pretĂ©n aconseguir que, d’una banda, la mesura del dolor es faci de forma regular, amb la metodologia adequada i es registri sistemĂ ticament a la histĂČria clĂ­nica. De l’altra, utilitzar les estratĂšgies de tractament del dolor, tant farmacolĂČgiques com no farmacolĂČgiques; mĂ©s efectives i segures per a aquest tipus de poblaciĂł. La utilitzaciĂł prĂ ctica d’aquesta publicaciĂł s’ha de considerar com una guia; no es pretĂ©n anteposar-la al judici clĂ­nic

    Guia de prĂ ctica clĂ­nica: abordatge del tractament del dolor neuropĂ tic

    No full text
    Dolor neuropàtic; Epidemiologia; Hospital; Atenció primàriaDolor neuropåtico; Epidemiología; Hospital; Atención primariaNeuropathic pain; Epidemiology; Hospital; Primary careLa Guia pretén estructurar i consensuar l'atenció dels malalts amb dolor neuropàtic dins del nostre territori. S'especifiquen intervencions preventives i terapÚutiques, així com a quin nivell el malalts han de ser atesos en funció de la seva situació clínica i la seva complexitat, els fluxos i metodologia bàsica de derivacions. Es vol potenciar un abordatge transversal i integral del dolor neuropàtic, que abasta l'atenció primària i l'atenció especialitzada hospitalària, i promoure la continuïtat assistencial entre ambdós nivells assistencials, tenint en compte intervencions i criteris compartits, per tal de disminuir la variabilitat de la pràctica clínica i millorar la qualitat i seguretat del pacient

    Intratumoral nanoplexed poly I:C BO-112 in combination with systemic anti–PD-1 for patients with anti–PD-1–refractory tumors

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    Intratumoral therapies, especially Toll-like receptor agonists, can trigger both the innate and adaptive immune systems. BO-112 is a nanoplexed form of polyinosinic:polycytidylic acid (poly I:C) that induces local and systemic immunotherapeutic effects in mouse models. In a multicenter phase 1 clinical trial, repeated intratumoral administrations of BO-112 induced an increase in tumor cell necrosis and apoptosis, as well as augmented immune reactivity according to gene expression profiling. The first three cohorts receiving BO-112 as a monotherapy resulted in a recommended dose of 1 mg that could be safely repeated. Two grade 3 to 4 adverse reactions in the form of reversible thrombocytopenia were reported. In a fourth cohort of 28 patients with tumors that had primary resistance to anti–programmed cell death protein–1 (PD-1), the combination of intratumoral BO-112 with nivolumab or pembrolizumab was also well tolerated, and 3 patients (2 with melanoma and 1 with renal cell carcinoma) achieved partial responses, with 10 more patients having stable disease at 8 to 12 weeks. Thus, local BO-112 combined with a systemic anti–PD-1 agent might be a strategy to revert anti–PD-1 resistanc

    El tiempo de la archivĂ­stica: un estudio de sus espacios de racionalidad histĂłrica

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