84 research outputs found
Proyecto de investigación/acción en trabajo social comunitario : la construcción de prácticas participativas
Esta comunicación pretende aportar elementos para la reflexión y el debate acerca del papel del ámbito académico del trabajo social en torno a los procesos participativos, a partir de un proyecto que se viene construyendo y desarrollando desde el año 2001. Una de las hipótesis de trabajo y ejes centrales de este proyecto, ha sido también la de situar las metodologías de investigación acción participativa como herramientas que permiten la retroalimentación de saberes y el enriquecimiento mutuo. Ello revierte en prácticas más creativas y permite revisar, y repensar a nivel epistemológico y metodológico, el enfoque comunitario desde la disciplina del trabajo social. Esta experiencia nace a partir de un grupo de profesores de los Estudios de Trabajo Social de la Universidad de Barcelona que deciden emprender conjuntamente con profesionales y vecinos una investigación acción participativa en tres territorios con características sociológicas y estructurales distintas. El proyecto consta de tres fases entrelazadas entre sí. En la primera operación se ha realizado la observación y reconstrucción de 18 experiencias previamente seleccionadas e identificadas como procesos comunitarios en distintas zonas de la Comunidad Autónoma de Cataluña. La participación de los profesionales y vecinos en esta primera fase ha permitido poner en marcha procesos comunitarios a través de la elaboración de un diagnóstico social en cada uno de los tres territorios implicados en el proyecto. Los resultados y las conclusiones de la investigación, así como del proceso de elaboración del diagnóstico social participativo han quedado reflejados en sendos informes. Estos, constituyen herramientas de trabajo que van a permitir la elaboración de programas de acción integral (PAI) en cada una de las experiencias. A partir de talleres de prospectiva se van a discutir, y a elaborar las propuestas concretas de políticas y acciones a realizar. Esta tercera y última fase del proyecto está previsto que se realice a lo largo del curso 2003/2004.This project is focused on elements that induce reflection and debate at an academic
level around social projects with participative processes, based on a project that has been
going on since 2001. One of the work hypothesis and central point of this project, has
been to use participative action as an investigative tool that permits retroactive knowledge
to enhance one and other. This results in creative practices that lead to the revision of
epistemological and methodological insights while focusing on communitary discipline in
social work.
This experiment was created by a group of professors at the University of Barcelona
who, together with on the field professionals and neighborhood volunteers who focused
their investigation in three areas with different social structures. This project consists of
three interdependent phases. The first phase consisted of the study of 18 predetermined
experiences identified as communal processes in Catalonia. The neighborhood and professional participation during the second phase led to a social diagnosis which in turn
as third phase has been presented as a document to elaborate proposals and actions. This
final phase is projected to take place during the 2003-2004 academic yea
Seguimiento de pacientes dados de alta de un hospital de día para adolescentes.Estudio descriptivo.
Estudio descriptivo del Hospital de Día para Adolescentes de Gavà (Barcelona) a partir de una encuesta ad hoc que se administró al ingreso, al alta y, posteriormente, a los seis meses y al año
Talleres de trabajo comunitario: una experiencia de innovación pedagógica
Talleres de trabajo comunitario: una experiencia de innovación pedagógic
Identification of prefoldin amplification (1q23.3-q24.1) in bladder cancer using comparative genomic hybridization (CGH) arrays of urinary DNA
Array-CGH represents a comprehensive tool to discover genomic disease alterations that could
potentially be applied to body fluids. In this report, we aimed at applying array-CGH to urinary samples to
characterize bladder cancer.
Methods: Urinary DNA from bladder cancer patients and controls were hybridized on 44K oligonucleotide arrays.
Validation analyses of identified regions and candidates included fluorescent in situ hybridization (FISH) and
immunohistochemistry in an independent set of bladder tumors spotted on custom-made tissue arrays (n = 181).
Results: Quality control of array-CGH provided high reproducibility in dilution experiments and when comparing
reference pools. The most frequent genomic alterations (minimal recurrent regions) among bladder cancer urinary
specimens included gains at 1q and 5p, and losses at 10p and 11p. Supervised hierarchical clustering identified the
gain at 1q23.3-q24.1 significantly correlated to stage (p = 0.011), and grade (p = 0.002). The amplification and
overexpression of Prefoldin (PFND2), a selected candidate mapping to 1q23.3-q24.1, correlated to increasing
stage and tumor grade by means of custom-designed and optimized FISH (p = 0.013 and p = 0.023,
respectively), and immunohistochemistry (p ≤0.0005 and p = 0.011, respectively), in an independent set of
bladder tumors included in tissue arrays. Moreover, PFND2 overexpression was significantly associated with poor
disease-specific survival (p ≤0.0005). PFND2 was amplified and overexpressed in bladder tumors belonging to
patients providing urinary specimens where 1q23.3q24.1 amplification was detected by array-CGH.
Conclusions: Genomic profiles of urinary DNA mirrowed bladder tumors. Molecular profiling of urinary DNA
using array-CGH contributed to further characterize genomic alterations involved in bladder cancer progression.
PFND2 was identified as a tumor stratification and clinical outcome prognostic biomarker for bladder cancer
patientsSupported by grants (SAF2009-13035 and SAF2012-40206) from the Spanish
Ministry of Education and Culture (to Dr Sánchez-Carbayo). Virginia López is
recipient of a predoctoral award from the Spanish Ministry of Education and
Cultur
Effects of Acute Vitamin C plus Vitamin E Supplementation on Exercise-Induced Muscle Damage in Runners: A Double-Blind Randomized Controlled Trial
Considering the existing controversy over the possible role of acute antioxidant vitamins in reducing exercise-induced muscle damage (EIMD), this doubled-blind, randomized and controlled trial aimed to determine whether supplementation with vitamins C and E could mitigate the EIMD in endurance-trained runners (n = 18). The exercise protocol involved a warm-up followed by 6 to 8 bouts of 1 km running at 75% maximum heart rate (HRmax). Two hours before the exercise protocol, participants took the supplementation with vitamins or placebo, and immediately afterwards, blood lactate, rate of perceived exertion and performance were assessed. At 24 h post-exercise, CK, delayed onset muscle soreness and performance were determined (countermovement jump, squat jump and stiffness test). The elastic index and vertical stiffness were calculated using a stiffness test. Immediately after the exercise protocol, all participants showed improved maximum countermovement jump, which only persisted after 24 h in the vitamin group (p 0.05). Vitamin C and E supplementation does not seem to help with EIMD in endurance-trained individual
Somatic signature of brain-specific single nucleotide variations in sporadic alzheimer's disease
© 2014 IOS Press and the authors. All rights reserved. Background: Although genome-wide association studies have shown that genetic factors increase the risk of suffering late-onset, sporadic Alzheimer's disease (SAD), the molecular mechanisms responsible remain largely unknown. Objective: The aim of the study was to investigate the presence of somatic, brain-specific single nucleotide variations (SNV) in the hippocampus of SAD samples. Methods: By using bioinformatic tools, we compared whole exome sequences in paired blood and hippocampal genomic DNAs from 17 SAD patients and from 2 controls and 2 vascular dementia patients. Results: We found a remarkable number of SNVs in SAD brains (~575 per patient) that were not detected in blood. Loci with hippocampus-specific (hs)-SNVs were common to several patients, with 38 genes being present in 6 or more patients out of the 17. While some of these SNVs were in genes previously related to SAD (e.g., CSMD1, LRP2), most hs-SNVs occurred in loci previously unrelated to SAD. The most frequent genes with hs-SNVs were associated with neurotransmission, DNA metabolism, neuronal transport, and muscular function. Interestingly, 19 recurrent hs-SNVs were common to 3 SAD patients. Repetitive loci or hs-SNVs were underrepresented in the hippocampus of control or vascular dementia donors, or in the cerebellum of SAD patients. Conclusion: Our data suggest that adult blood and brain have different DNA genomic variations, and that somatic genetic mosaicism and brain-specific genome reshaping may contribute to SAD pathogenesis and cognitive differences between individuals.BBVA Foundation and MICINN-MINECO. We also like to thank the support of the Reina Sofia Foundation, the CIEN Foundation, CIBERNED (ISCIII
A Phase I-II multicenter trial with Avelumab plus autologous dendritic cell vaccine in pre-treated mismatch repair-proficient (MSS) metastatic colorectal cancer patients; GEMCAD 1602 study
[Background]: Immune check-point blockade (ICB) has shown clinical beneft in mismatch repair-defcient/microsatellite instability high metastatic colorectal cancer (mCRC) but not in mismatch repair-profcient/microsatellite stable patients. Cancer vaccines with autologous dendritic cells (ADC) could be a complementary therapeutic approach to ICB as this combination
has the potential to achieve synergistic efects.
[Methods]: This was a Phase I/II multicentric study with translational sub-studies, to evaluate the safety, pharmacodynamics and anti-tumor efects of Avelumab plus ADC vaccine in heavily pre-treated MSS mCRC patients. Primary objective was to determine the maximum tolerated dose and the efcacy of the combination. The primary end-point was 40% progressionfree survival at 6 months with a 2 Simon Stage.
[Results]: A total of 28 patients were screened and 19 pts were included. Combined therapy was safe and well tolerated. An interim analysis (Simon design frst-stage) recommended early termination because only 2/19 (11%) patients were disease free at 6 months. Median PFS was 3.1 months [2.1–5.3 months] and overall survival was 12.2 months [3.2–23.2 months]. Stimulation of immune system was observed in vitro but not clinically. The evaluation of basal RNA-seq noted signifcant changes between pre and post-therapy liver biopsies related to lipid metabolism and transport, infammation and oxidative stress pathways.
[Conclusions]: The combination of Avelumab plus ADC vaccine is safe and well tolerated but exhibited modest clinical activity. Our study describes, for the frst-time, a de novo post-therapy metabolic rewiring, that could represent novel immunotherapyinduced tumor vulnerabilities.The study was funded by grants from the FIS PI17/00732 from Instituto de Salud Carlos III, Premi Fi de Residència Emili Letang from Hospital Clínic Barcelona, Plan Nacional de I + D (PID-107139RB-C21 to DB-R and PID2020-115051RB-I00 to MC) and Grupo Español Multidisciplinar en Cáncer Digestivo (GEMCAD). The study was funded with Grants from Catalan Agency for Management of University and Research Grants (AGAUR) (2014-SGR-474, 2017-SGR-1174 and 2017-SGR-1033), Fundació la Marató de TV3 (201330.10), Instituto de Salud Carlos III (PI13/01728 and PI19/00740) and Fundacion Olga Torres (Modalitat A. 2019/2020) to JM. IMMETCOLS signature is under patent protection (EP21382772.8.) This research was financially supported by GEMCAD and (OR Avelumab was provided) by Merck, S.L.U., Madrid, Spain, an affiliate of Merck KGaA, Darmstadt, Germany, as part of an alliance between the healthcare business of Merck KGaA, Darmstadt, Germany (CrossRef Funder ID: https://doi.org/10.13039/100009945) and Pfizer
P53 wild-type colorectal cancer cells that express a fetal gene signature are associated with metastasis and poor prognosis
Current therapy against colorectal cancer (CRC) is based on DNA-damaging agents that remain ineffective in a proportion of patients. Whether and how non-curative DNA damage-based treatment affects tumor cell behavior and patient outcome is primarily unstudied. Using CRC patient-derived organoids (PDO)s, we show that sublethal doses of chemotherapy (CT) does not select previously resistant tumor populations but induces a quiescent state specifically to TP53 wildtype (WT) cancer cells, which is linked to the acquisition of a YAP1-dependent fetal phenotype. Cells displaying this phenotype exhibit high tumor-initiating and metastatic activity. Nuclear YAP1 and fetal traits are present in a proportion of tumors at diagnosis and predict poor prognosis in patients carrying TP53 WT CRC tumors. We provide data indicating the higher efficacy of CT together with YAP1 inhibitors for eradication of therapy resistant TP53 WT cancer cells. Together these results identify fetal conversion as a useful biomarker for patient prognosis and therapy prescription. The failure of chemotherapy in colorectal cancer is currently unclear. Here, the authors show that upon sub-lethal dose of chemotherapy wild-type p53 colorectal cancers acquire a quiescence-like phenotype and a YAP-dependent fetal-like intestinal stem cell state associated with a higher metastatic activity and poor prognosis in patients
Effect of sex in systemic psoriasis therapy: Differences in prescription, effectiveness and safety in the BIOBADADERM prospective cohort
The effect of sex on systemic therapy for psoriasis has not been well studied. The aim of this study was to analyse a large multicentre Spanish cohort of 2,881 patients with psoriasis (58.3% males), followed from January 2008 to November 2018, to determine whether sex influences prescription, effectiveness of therapy, and the risk of adverse events. The results show that women are more likely than men to be pre-scribed biologics. There were no differences between men and women in effectiveness of therapy, measur-ed in terms of drug survival. Women were more likely to develop adverse events, but the difference in risk was small and does not justify different management. Study limitations include residual confounding and the use of drug survival as a proxy for effectiveness.The BIOBADADERM project is promoted by the Fundación Piel Sana Academia Española de Dermatología y Venereología, which receives financial support from the Spanish Medicines and Health Products Agency (Agencia Española de Medicamentos y Productos Sanitarios) and from pharmaceutical companies (Abbott/Abbvie, Pfizer, MSD, Novartis, Lilly, Janssen and Almirall)
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