129 results match your criteria: "and Universitat de Barcelona[Affiliation]"

Emergent structures in active block copolymer composites.

Phys Rev E

December 2023

Departament de Física de la Matèria Condensada, Universitat de Barcelona, Martí i Franqués 1, 08028 Barcelona, Spain and Universitat de Barcelona Institute of Complex Systems (UBICS), Universitat de Barcelona, 08028 Barcelona, Spain.

Block copolymer melts offer unique templates to control the position and alignment of nanoparticles due to their ability to self-assemble into periodic ordered structures. Active particles are shown to coassemble with block copolymers leading to emergent organized structures. The block copolymer acts as a soft template that can control the self-propulsion of active particles, both for interface-segregated and selective nanoparticles.

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Introduction: Juvenile systemic sclerosis (jSSc) is an orphan disease with a prevalence of 3 in 1,000,000 children. Currently there is only one consensus treatment guideline concerning skin, pulmonary and vascular involvement for jSSc, the jSSc SHARE (Single Hub and Access point for pediatric Rheumatology in Europe) initiative, which was based on data procured up to 2014. Therefore, an update of these guidelines, with a more recent literature and expert experience, and extension of the guidance to more aspects of the disease is needed.

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Genome-Wide Gene-Environment Interaction Analyses to Understand the Relationship between Red Meat and Processed Meat Intake and Colorectal Cancer Risk.

Cancer Epidemiol Biomarkers Prev

March 2024

Department of Population and Public Health Sciences and USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California.

Article Synopsis
  • High consumption of red and processed meats is linked to an increased risk of colorectal cancer, with a study analyzing data from over 29,000 cancer cases and 39,000 control subjects confirming this association.
  • The research identified two significant genetic markers (SNPs) that interact with meat consumption levels, suggesting that certain genetic variants can influence individual cancer risk based on dietary habits.
  • These findings highlight the potential for using genetic information to better understand colorectal cancer risks related to diet, which may lead to personalized dietary recommendations for specific population subgroups.
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Molecular profiling and feasibility using a comprehensive hybrid capture panel on a consecutive series of non-small-cell lung cancer patients from a single centre.

ESMO Open

December 2023

Department of Medical Oncology, Catalan Institute of Oncology (ICO), L'Hospitalet del Llobregat, Barcelona, Spain; Preclinical and Experimental Research in Thoracic Tumors (PReTT), Molecular Mechanisms and Experimental Therapy in Oncology Program (Oncobell), Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain. Electronic address:

Background: Targeted next-generation sequencing (NGS) is recommended to screen actionable genomic alterations (GAs) in patients with non-small-cell lung cancer (NSCLC). We determined the feasibility to detect actionable GAs using TruSight™ Oncology 500 (TSO500) in 200 consecutive patients with NSCLC.

Materials And Methods: DNA and RNA were sequenced on an Illumina® NextSeq 550 instrument and processed using the TSO500 Docker pipeline.

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Identification of intergenerational epigenetic inheritance by whole genome DNA methylation analysis in trios.

Sci Rep

December 2023

Unit of Biomarkers and Susceptibility (UBS), Oncology Data Analytics Program (ODAP), Catalan Institute of Oncology (ICO), L'Hospitalet del Llobregat, 08908, Barcelona, Spain.

Genome-wide association studies have identified thousands of loci associated with common diseases and traits. However, a large fraction of heritability remains unexplained. Epigenetic modifications, such as the observed in DNA methylation have been proposed as a mechanism of intergenerational inheritance.

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Improving Species Level-taxonomic Assignment from 16S rRNA Sequencing Technologies.

Curr Protoc

November 2023

Oncology Data Analytics Program (ODAP), Catalan Institute of Oncology (ICO), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain.

Analysis of the bacterial community from a 16S rRNA gene sequencing technologies requires comparing the reads to a reference database. The challenging task involved in annotation relies on the currently available tools and 16S rRNA databases: SILVA, Greengenes and RDP. A successful annotation depends on the quality of the database.

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Immune checkpoint inhibitors targeting the programmed cell death protein 1 (PD-1) pathway have revolutionized cancer immunotherapy by enhancing the immune system's ability to combat cancer cells. However, this innovative approach comes with a distinctive set of challenges, as these therapies can lead to immune-related adverse events (irAEs) due to their mechanism of action. The most common irAEs involve the skin, gastrointestinal tract, liver, endocrine system, and lungs.

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Objective: Reduced diversity at Human Leukocyte Antigen (HLA) loci may adversely affect the host's ability to recognize tumor neoantigens and subsequently increase disease burden. We hypothesized that increased heterozygosity at HLA loci is associated with a reduced risk of developing colorectal cancer (CRC).

Methods: We imputed HLA class I and II four-digit alleles using genotype data from a population-based study of 5,406 cases and 4,635 controls from the Molecular Epidemiology of Colorectal Cancer Study (MECC).

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Purpose: To build models combining circulating microRNAs (miRNAs) able to identify women with breast cancer as well as different types of breast cancer, when comparing with controls without breast cancer.

Method: miRNAs analysis was performed in two phases: screening phase, with a total n = 40 (10 controls and 30 BC cases) analyzed by Next Generation Sequencing, and validation phase, which included 131 controls and 269 cases. For this second phase, the miRNAs were selected combining the screening phase results and a revision of the literature.

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Background: Vaccine hesitancy and lack of access remain major issues in disseminating COVID-19 vaccination to liver patients globally. Factors predicting poor response to vaccination and risk of breakthrough infection are important data to target booster vaccine programs. The primary aim of the current study was to measure humoral responses to 2 doses of COVID-19 vaccine.

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T-hyperintense lesions are the key imaging marker of multiple sclerosis (MS). Previous studies have shown that the white matter surrounding such lesions is often also affected by MS. Our aim was to develop a new method to visualize and quantify the extent of white matter tissue changes in MS based on relaxometry properties.

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Article Synopsis
  • FABP-4 is a lipid-binding protein linked to obesity that may influence tumor growth and insulin resistance, potentially impacting colorectal cancer (CRC) development.
  • A study using pre-diagnostic plasma levels of FABP-4 involved 1,324 CRC cases compared with matched controls, and also used a Mendelian randomization approach with genetic data from over 58,000 CRC cases.
  • Results showed no significant overall association between FABP-4 levels and CRC risk; however, a noteworthy correlation was found in women using the cis-MR approach, suggesting a possible link specifically in that demographic.
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Reliable, standardized measurements for cell mechanical properties.

Nanoscale

October 2023

Department of Biophysical Microstructures, Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Kraków, Poland.

Atomic force microscopy (AFM) has become indispensable for studying biological and medical samples. More than two decades of experiments have revealed that cancer cells are softer than healthy cells (for measured cells cultured on stiff substrates). The softness or, more precisely, the larger deformability of cancer cells, primarily independent of cancer types, could be used as a sensitive marker of pathological changes.

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mRNA COVID-19 Vaccination Does Not Exacerbate Symptoms or Trigger Neural Antibody Responses in Multiple Sclerosis.

Neurol Neuroimmunol Neuroinflamm

November 2023

From the Neuroimmunology and Multiple Sclerosis Unit (Y.B., D.E., S.L., R.R.G., M.A., S.A., J.M.C.-M., M.G., A.H., E.M.-H., M.S., T.A., J.D., A.S.), Hospital Clinic de Barcelona, and Universitat de Barcelona; Neurommunology Program, Fundació de Recerca Clinic Barcelona-IDIBAPS (Y.B., S.L., R.R.G., M.A., E.A., M.A., E.C., J.M.C.-M., E.F., M.G., E.M.-H., G.O.-C., M.R., L.S., M.S., E.S., T.A., J.D., A.S.), Barcelona; Neuromuscular Diseases Unit, Neurology Department (C.L., L.M.-A., C.T.-I., N.V.-F., L.Q.), Hospital de Sant Pau, Barcelona; Centro para la Investigación en Red en Enfermedades Raras (CIBERER) (C.L., M.G., C.T.-I., J.D., L.Q.), Madrid; Department of Immunology (N.E., R.R.G.), Hospital Clinic de Barcelona; Department of Preventive Medicine and Epidemiology (M.A., A.V.), Hospital Clinic de Barcelona, Spain; Department of Neurology (E.F.), School of Medicine, Pontificia Universidad Católica de Chile, Santiago de Chile; Pediatric Neurology Unit (G.O.-C.), Hospital Parc Taulí de Sabadell, Barcelona; Infectious Diseases Unit, Department of Internal Medicine, (J.L.-C., A.R.) Hospital de Sant Pau, Universitat Autónoma de Barcelona, Barcelona; Immunology Department (L.M.-M.), Sant Pau, Institut de Recerca del Hospital de Sant Pau, Universitat Autónoma de Barcelona, Barcelona; Department of Pediatrics, and Infectious Diseases Department (C.F.), Institut de Recerca Pediàtrica Hospital de Sant Joan de Déu, Esplugues de Llobregat, Barcelona; Pediatric Neuroimmunology Unit, Department of Neurology (S.J.D.), Sant Joan de Déu Children´s Hospital (T.A), University of Barcelona, Spain; Department of Neurology, (J.D.) Perelman School of Medicine, University of Pennsylvania, Philadelphia; and Catalan Institute for Research and Advanced Studies (ICREA) (J.D.), Barcelona, Spain.

Background And Objective: In people with multiple sclerosis (pwMS), concern for potential disease exacerbation or triggering of other autoimmune disorders contributes to vaccine hesitancy. We assessed the humoral and T-cell responses to SARS-CoV-2 after mRNA vaccination, changes in disease activity, and development of antibodies against central or peripheral nervous system antigens.

Methods: This was a prospective 1-year longitudinal observational study of pwMS and a control group of patients with other inflammatory neurologic disorders (OIND) who received an mRNA vaccine.

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Genome-wide interaction analysis of folate for colorectal cancer risk.

Am J Clin Nutr

November 2023

Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece; Department of Epidemiology and Biostatistics, Imperial College London, School of Public Health, London, United Kingdom. Electronic address:

Article Synopsis
  • A study is exploring how genetic variations might influence the relationship between folate intake and colorectal cancer risk, focusing on specific genetic interactions.
  • The research analyzed data from over 30,000 colorectal cancer cases and 42,000 controls, examining the effects of dietary folate and folic acid supplements.
  • Results indicated that while higher folate intake is generally linked to lower CRC risk, certain genetic variants (like rs150924902) can modify this effect, with some genotypes showing increased risk with folate supplementation.
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Novel insights into genetic susceptibility for colorectal cancer from transcriptome-wide association and functional investigation.

J Natl Cancer Inst

January 2024

Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, USA.

Background: Transcriptome-wide association studies have been successful in identifying candidate susceptibility genes for colorectal cancer (CRC). To strengthen susceptibility gene discovery, we conducted a large transcriptome-wide association study and an alternative splicing transcriptome-wide association study in CRC using improved genetic prediction models and performed in-depth functional investigations.

Methods: We analyzed RNA-sequencing data from normal colon tissues and genotype data from 423 European descendants to build genetic prediction models of gene expression and alternative splicing and evaluated model performance using independent RNA-sequencing data from normal colon tissues of the Genotype-Tissue Expression Project.

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Objective: Juvenile systemic sclerosis (SSc) is an orphan disease, associated with high morbidity and mortality. New treatment strategies are much needed, but clearly defining appropriate outcomes is necessary if successful therapies are to be developed. Our objective here was to propose such outcomes.

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Background: Polygenic risk scores (PRSs) have been used to stratify colorectal cancer (CRC) risk in the general population, whereas its role in Lynch syndrome (LS), the most common type of hereditary CRC, is still conflicting. We aimed to assess the ability of PRS to refine CRC risk prediction in European-descendant individuals with LS.

Methods: 1465 individuals with LS (557 , 517 , 299 and 92 ) and 5656 CRC-free population-based controls from two independent cohorts were included.

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International Delphi Consensus on the Management of AQP4-IgG+ NMOSD: Recommendations for Eculizumab, Inebilizumab, and Satralizumab.

Neurol Neuroimmunol Neuroinflamm

July 2023

From the Experimental and Clinical Research Center (F.P.), Max Delbrueck Center for Molecular Medicine and Charité Universitaetsmedizin Berlin, Germany; Hospices Civils de Lyon (R.M.), Service de Neurologie, Sclérose en Plaques, Pathologies de la Myéline et Neuro Inflammation, and Centre de Référence des Maladies Inflammatoires Rares du Cerveau et de la Moelle (MIRCEM), Hôpital Neurologique Pierre Wertheimer, Bron; Centre des Neurosciences de Lyon-FORGETTING Team (R.M.), INSERM 1028 et CNRS UMR5292; Université Claude Bernard Lyon 1 (R.M.), France; John Radcliff Hospital (J.P.); Clinical Neurology Oxford University (J.P.), Oxford, United Kingdom; Servei de Neurologia-Neuroimmunologia (G.A.), Centre d'Esclerosi Múltiple de Catalunya (Cemcat); Vall d'Hebron Institut de Recerca (G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (G.A.), Spain; Departments of Regional Health Research and Molecular Medicine (N.A.), University of Southern Denmark, Odense, Denmark; Department of Neurology (N.A.), Slagelse Hospital, Denmark; Programs in Neuroscience and Immunology (J.L.B.), Departments of Neurology and Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora; Department of Neurology (B.A.C.C.), UCSF Weill Institute for Neurosciences, University of California San Francisco; Department of Neurology (J.D.S.), Hôpitaux Universitaires de Strasbourg; INSERM U1119 Biopathologie de la Myéline (J.D.S.), Neuroprotection et Stratégies Thérapeutique; Clinical Investigation Center (J.D.S.), Hôpitaux Universitaires de Strasbourg, France; Department of Multiple Sclerosis Therapeutics (K.F.), Fukushima Medical University School of Medicine, and Multiple Sclerosis and Neuromyelitis Optica Center, Southern TOHOKU Research Institute for Neuroscience, Koriyama, Japan; Department of Neurology (H.J.K.), Research Institute and Hospital of National Cancer Center, Goyang, South Korea; Oxford PharmaGenesis Ltd (R.H., L.L.); Department of Neurology (S.H.), Walton Centre NHS Foundation Trust, Liverpool, United Kingdom; Medical Research Center (N.K.), Marrakesh Medical School, Cadi Ayyad University; Neurology Department (N.K.), University Teaching Hospital Mohammed VI, Marrakesh, Morocco; Department of Neurology (I.K.), St Josef-Hospital, Ruhr-University Bochum; Marianne-Strauß-Klinik (I.K.), Behandlungszentrum Kempfenhausen für Multiple Sklerose Kranke, Berg, Germany; Department of Neurology (S.K.), Graduate School of Medicine, Chiba University, Japan; CIEM MS Research Center (M.L.-P.), Federal University of Minas Gerais, Belo Horizonte, Brazil; John Radcliffe Hospital (M.I.L.), University of Oxford, United Kingdom; KS Hegde Medical Academy Director (L.P.), Center for Advanced Neurological Research, Nitte University, Mangalore, India; Neurology (S.J.P.), Laboratory Medicine and Pathology, Center for Multiple Sclerosis and Autoimmune Neurology, Mayo Clinic, Rochester, MN; Department of Neurology and Rare Disease Center (C.Q.), National Center for Neurological Disorders, Huashan Hospital, Shanghai Medical College, Fudan University, China; Translational Neuroimmunology Group (S.R.), Kids Neuroscience Centre, and Brain and Mind Centre, Sydney Medical School, Faculty of Medicine and Health, University of Sydney; Department of Neurology (S.R.), Concord Hospital, Australia; Division of Neurology (D.R.), Department of Medicine, University of Toronto, Ontario, Canada; Neuroimmunology and Multiple Sclerosis Unit (A.S.), Service of Neurology, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), and Universitat de Barcelona, Spain; School of Medicine (D.K.S.), Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil; and Department of Neurology and Laboratory of Neuroimmunology and The Agnes-Ginges Center for Neurogenetics (A.V.-D.), Hadassah-Medical Center, Ein-Kerem, Faculty of Medicine, Hebrew University of Jerusalem, Israel.

Background And Objectives: Neuromyelitis optica spectrum disorder (NMOSD) is a rare debilitating autoimmune disease of the CNS. Three monoclonal antibodies were recently approved as maintenance therapies for aquaporin-4 immunoglobulin G (AQP4-IgG)-seropositive NMOSD (eculizumab, inebilizumab, and satralizumab), prompting the need to consider best practice therapeutic decision-making for this indication. Our objective was to develop validated statements for the management of AQP4-IgG-seropositive NMOSD, through an evidence-based Delphi consensus process, with a focus on recommendations for eculizumab, inebilizumab, and satralizumab.

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Article Synopsis
  • The study investigates the role of a specific mutational signature (SBS88) in colorectal cancer (CRC), which is linked to a bacteria that produces a genotoxin called colibactin.
  • About 7.5% of the CRC cases studied were found to be SBS88-positive, with a notable prevalence in the distal colon and rectum, and demonstrated distinct somatic mutations associated with colibactin-induced DNA damage.
  • SBS88-positive CRCs were linked to better survival rates compared to negative cases, suggesting this mutational signature could help identify a unique subtype of CRC that may influence treatment and prevention approaches.
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Importance: The value of serum neurofilament light chain (sNfL) levels for predicting long-term disability in patients with multiple sclerosis (MS) remains controversial.

Objective: To assess whether high sNfL values are associated with disability worsening in patients who underwent their first demyelinating MS event.

Design, Setting, And Participants: This multicenter cohort study included patients who underwent their first demyelinating event suggestive of MS at Hospital Universitario Ramón y Cajal (development cohort; June 1, 1994, to September 31, 2021, with follow-up until August 31, 2022) and 8 Spanish hospitals (validation cohort; October 1, 1995, to August 4, 2020, with follow-up until August 16, 2022).

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Multiple sclerosis (MS) is a chronic autoimmune demyelinating and neurodegenerative disease of the central nervous system with a wide variety of clinical phenotypes. In spite of the phenotypic classification of MS patients, current data provide evidence that diffuse neuroinflammation and neurodegeneration coexist in all MS forms, the latter gaining increasing clinical relevance in progressive phases. Given that the transition phase of relapsing-remitting MS (RRMS) to secondary progressive MS (SPMS) is not well defined, and widely accepted criteria for SPMS are lacking, randomised controlled trials (RCTs) specifically designed for the transition phase have not been conducted.

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Clinical and MRI measures to identify non-acute MOG-antibody disease in adults.

Brain

June 2023

NMR Research Unit, Queen Square MS Centre, Department of Neuroinflammation, Faculty of Brain Sciences, UCL Queen Square Institute of Neurology, University College London, London, UK.

MRI and clinical features of myelin oligodendrocyte glycoprotein (MOG)-antibody disease may overlap with those of other inflammatory demyelinating conditions posing diagnostic challenges, especially in non-acute phases and when serologic testing for MOG antibodies is unavailable or shows uncertain results. We aimed to identify MRI and clinical markers that differentiate non-acute MOG-antibody disease from aquaporin 4 (AQP4)-antibody neuromyelitis optica spectrum disorder and relapsing remitting multiple sclerosis, guiding in the identification of patients with MOG-antibody disease in clinical practice. In this cross-sectional retrospective study, data from 16 MAGNIMS centres were included.

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Teaching NeuroImage: Glioblastoma Multiforme Presenting as Optic Neuropathy.

Neurology

January 2023

From the Center of Neuroimmunology (J.M.C.-M., M.S., Y.B.), Service of Neurology, Laboratory of Advanced Imaging in Neuroimmunological Diseases, Hospital Clínic of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), and Universitat de Barcelona; Department of Neurology (E.F.), School of Medicine, Pontificia Universidad Católica de Chile; and Department of Ophtalmology (A.C.-C.), Hospital Clinic of Barcelona, Spain.

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