290 results match your criteria: "Bellvitge Institute for Biomedical Research[Affiliation]"

Introduction: Chronic hand ischaemia may affect some haemodialysis patients with an arteriovenous fistula (AVF) or graft (AVG), a condition known as haemodialysis access-induced distal ischaemia (HAIDI). Duplex ultrasonography (DUS) can provide comprehensive insights into anatomical and perfusion properties, and measuring the hand acceleration time (HAT) has been demonstrated to be sensitive within the framework of chronic upper limb ischaemia.

Methods And Analysis: This single-centre, prospective cohort study will involve adult end-stage renal disease (ESRD) patients requiring either AVF or AVG for haemodialysis.

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Segregation-to-integration transformation model of memory evolution.

Netw Neurosci

December 2024

Department of Cognition, Development and Education Psychology, University of Barcelona, Barcelona, Spain.

Memories are thought to use coding schemes that dynamically adjust their representational structure to maximize both persistence and efficiency. However, the nature of these coding scheme adjustments and their impact on the temporal evolution of memory after initial encoding is unclear. Here, we introduce the Segregation-to-Integration Transformation (SIT) model, a network formalization that offers a unified account of how the representational structure of a memory is transformed over time.

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Neoadjuvant therapy, particularly the combination of chemotherapy and immunotherapy, has become standard in treating locally advanced non-small cell lung cancer (NSCLC). While this approach improves pathologic responses, its effect on postoperative outcomes following robotic-assisted thoracic surgery (RATS) is not fully characterized. This study aimed to evaluate the impact of neoadjuvant therapy on postoperative outcomes in patients undergoing RATS for NSCLC, focusing on operative time, conversion rates to open surgery, and postoperative complications.

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Dopamine dynamics in chronic pain: music-induced, sex-dependent, behavioral effects in mice.

Pain Rep

February 2025

Pharmacology Unit, Department of Pathology and Experimental Therapeutics, School of Medicine and Health Sciences, Institute of Neurosciences, Universitat de Barcelona, Barcelona, Spain.

Introduction: Chronic pain is a debilitating disease that is usually comorbid to anxiety and depression. Current treatment approaches mainly rely on analgesics but often neglect emotional aspects. Nonpharmacological interventions, such as listening to music, have been incorporated into clinics to provide a more comprehensive management of chronic pain.

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Objective: With HIV now a chronic condition and an aging population, understanding the evolving profiles of older people with HIV (PWH) is crucial. In this longitudinal study, we examined changes in epidemiological and mortality trends among aging PWH aged 60 and above from 1998 to 2021.

Design: The study constructed four retrospective cohorts based on our calendar periods, reflecting the changing epidemiology of HIV - 1998-2003, 2004-2008, 2009-2014, and 2015-2021.

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Article Synopsis
  • The study analyzed the proteomic profiles of 79 bladder cancer samples, categorizing them into non-muscle-invasive (NMIBC), muscle-invasive (MIBC), and neoadjuvant-treated MIBC groups.
  • MIBC showed significant changes in the extracellular matrix and immune response-related proteins, as well as a decrease in proteins related to cell adhesion and lipid metabolism compared to NMIBC.
  • The research identified multiple proteomic subgroups within MIBC and NMIBC that correlate with tissue type and metabolic pathways, revealing complex tumor-stroma interactions and significant genomic alterations in the cancers.
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Our self-concept is constantly faced with self-relevant information. Prevailing research suggests that information's valence plays a central role in shaping our self-views. However, the need for stability within the self-concept structure and the inherent alignment of positive feedback with the pre-existing self-views of healthy individuals might mask valence and congruence effects.

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Severe ischemia-reperfusion injury induces epigenetic inactivation of LHX1 in kidney progenitor cells after kidney transplantation.

Am J Transplant

November 2024

Cancer Epigenetics Group, Cancer Epigenetics and Biology Program (PEBC), Bellvitge Institute for Biomedical Research (IDIBELL), Barcelona, Spain; Epigenetic Therapies Group, Genesis of Cancer Program, Josep Carreras Leukaemia Research Institute (IJC), Badalona, Spain. Electronic address:

Severe ischemia-reperfusion injury (IRI) causes acute and chronic kidney allograft damage. As therapeutic interventions to reduce damage are limited yet, research on how to promote kidney repair has gained significant interest. To address this question, we performed genome-wide transcriptome and epigenome profiling in progenitor cells isolated from the urine of deceased (severe IRI) and living (mild IRI) donor human kidney transplants and identified LIM homeobox-1 (LHX1) as an epigenetically regulated gene whose expression depends on the IRI severity.

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B2R-D2R Interaction in Prolactinomas and Nonfunctional Adenomas: Impact on Dopamine Resistance.

Endocrinology

October 2024

Laboratorio de Fisiopatología Hormonal, IBYME-CONICET, C1428ADN Buenos Aires, Argentina.

Prolactinomas, the most common pituitary-secreting adenomas, can be effectively treated with dopamine D2 receptor (D2R) agonists. However, a subset of them (∼20%) are resistant to dopamine-based therapies and require extirpation. The molecular mechanisms underlying their escape from dopaminergic regulation are not fully elucidated and may include alterations in D2R signaling.

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Objective: The objective was to determine the prevalence of peripheral venous catheter (PVC) failure and its association with care complexity individual factors (CCIFs) in emergency department (ED) patients.

Design: A cross-sectional, descriptive-correlational study was performed.

Methods: All patients with a PVC inserted in the ED of a tertiary hospital were included.

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Anticipating multisensory environments: Evidence for a supra-modal predictive system.

Cognition

January 2025

Department of Basic, Development and Education Psychology, Faculty of Psychology, Autonomous University of Barcelona, Spain. Electronic address:

Article Synopsis
  • The study investigates how humans generate predictions in multisensory environments using both auditory and visual stimuli, aiming to determine if these predictions are made through modality-specific mechanisms or a general predictive system.
  • Participants engaged with pairs of predictable auditory and visual stimuli, focusing on one modality while ignoring the other, to assess how expectations influence their perceptual performance.
  • Results indicate that participants performed better on expected targets, with the effect extending to distractors when targets were also expected, suggesting a shared predictive system across sensory modalities.
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Fatty acid synthase (FASN)-catalyzed endogenous lipogenesis is a hallmark of cancer metabolism. However, whether FASN is an intrinsic mechanism of tumor cell defense against T cell immunity remains unexplored. To test this hypothesis, here we combined bioinformatic analysis of the FASN-related immune cell landscape, real-time assessment of cell-based immunotherapy efficacy in CRISPR/Cas9-based FASN gene knockout (FASN KO) cell models, and mathematical and mechanistic evaluation of FASN-driven immunoresistance.

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Seizure prophylaxis in pneumococcal meningitis, cohort study.

Epilepsia Open

December 2024

Department of Clinical Sciences, Service of Infectious Diseases, Bellvitge University Hospital-Bellvitge Institute for Biomedical Research (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Spain.

Article Synopsis
  • The study aimed to evaluate the occurrence of seizures as a complication of pneumococcal meningitis and whether antiseizure medication (ASM) can help prevent them.
  • Out of 86 cases analyzed from 2010 to 2021, 24.4% experienced seizures, often before hospital admission, leading to increased medical interventions and longer stays.
  • ASM prophylaxis appeared effective, with only 9.4% of patients receiving it developing seizures compared to 40% without it, particularly when administered within 4 hours of admission; further research is needed to confirm these findings.
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Background And Aims: Cell culture is a fundamental experimental tool for understanding cell physiology. However, translating these findings to in vivo settings has proven challenging. Replicating donor tissue conditions, including oxygen levels, is crucial for achieving meaningful results.

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TDP-43 regulates LC3ylation in neural tissue through ATG4B cryptic splicing inhibition.

Acta Neuropathol

September 2024

Metabolic Pathophysiology Research Group, Department of Experimental Medicine, University of Lleida (UdL), Lleida Biomedical Research Institute (IRBLleida), 25198, Lleida, Spain.

Article Synopsis
  • - Amyotrophic lateral sclerosis (ALS) is a severe motor neuron disease with about a three-year average survival time, primarily characterized by TDP-43 protein issues that affect gene stability and autophagy processes.
  • - Research on ALS mice revealed that reducing ATG4B worsens survival and autophagy, while an increase in LC3ylation was observed in both ALS patients and mouse models, suggesting a link between these processes.
  • - Antisense oligonucleotides (ASOs) targeting TDP-43 genes have been developed, showing potential for non-invasive treatments that can effectively distribute in the brain after administration.
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Combining Data-Driven and Structure-Based Approaches in Designing Dual PARP1-BRD4 Inhibitors for Breast Cancer Treatment.

J Chem Inf Model

October 2024

Science for Life Laboratory, Department of Cell and Molecular Biology, Uppsala University, BMC, Box 596, SE-751 24, Uppsala, Sweden.

Poly(ADP-ribose) polymerase 1 (PARP1) inhibitors have revolutionized the treatment of many cancers with DNA-repairing deficiencies via synthetic lethality. Advocated by the polypharmacology concept, recent evidence discovered that a significantly synergistic effect in increasing the death of cancer cells was observed by simultaneously perturbating the enzymatic activities of bromodomain-containing protein 4 (BRD4) and PARP1. Here, we developed a novel cheminformatics approach combined with a structure-based method aiming to facilitate the design of dual PARP1-BRD4 inhibitors.

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Repurposing chemotherapy-induced peripheral neuropathy grading.

Eur J Neurol

December 2024

Unit of Neuro-Oncology, Hospital Universitari de Bellvitge-Institut Català Oncologia, Bellvitge Institute for Biomedical Research, L'Hospitalet de Llobregat, Barcelona, Spain.

Background And Purpose: Chemotherapy-induced peripheral neuropathy (CIPN) is perceived differently by patients and physicians, complicating its assessment. Current recommendations advocate combining clinical and patient-reported outcomes measures, but this approach can be challenging in patient care. This multicenter European study aims to bridge the gap between patients' perceptions and neurological impairments by aligning both perspectives to improve treatment decision-making.

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GPR37 processing in neurodegeneration: a potential marker for Parkinson's Disease progression rate.

NPJ Parkinsons Dis

September 2024

Pharmacology Unit, Department of Pathology and Experimental Therapeutics, School of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, 08907, L'Hospitalet de Llobregat, Spain.

The orphan G protein-coupled receptor 37 (GPR37), widely associated with Parkinson's disease (PD), undergoes proteolytic processing under physiological conditions. The N-terminus domain is proteolyzed by a disintegrin and metalloproteinase 10 (ADAM-10), which generates various membrane receptor forms and ectodomain shedding (ecto-GPR37) in the extracellular environment. We investigated the processing and density of GPR37 in several neurodegenerative conditions, including Lewy body disease (LBD), multiple system atrophy (MSA), corticobasal degeneration (CBD), progressive supranuclear palsy (PSP), and Alzheimer's disease (AD).

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Hybrid immunity protection against SARS-CoV-2 and severe COVID-19 in kidney transplantation: A retrospective, comparative cohort study.

Am J Transplant

December 2024

Nephrology Department, Bellvitge University Hospital, Barcelona, Spain; Nephrology and Renal Transplantation Group, Infectious Disease and Transplantation Program, Bellvitge Institute for Biomedical Research (IDIBELL), Barcelona, Spain; Department of Clinical Sciences, University of Barcelona, Barcelona, Spain.

Article Synopsis
  • Hybrid immunity, a combination of past SARS-CoV-2 infection and vaccination, shows strong protection against COVID-19, but its effects on immunocompromised patients like kidney transplant recipients hasn't been fully studied.
  • In a study involving 1,114 kidney transplant patients, those with hybrid immunity had significantly lower rates of infection (12.1%) and almost no hospitalizations or deaths, compared to vaccinated-only individuals (36.54% infection rate and some hospitalizations and deaths).
  • The findings highlight the importance of hybrid immunity in reducing the risk of COVID-19 infection and severe outcomes in vulnerable populations, indicating a need for tailored health strategies for these patients.
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Some patients with autism and severe intellectual disability may experience uncontrolled aggression, causing serious injury or harm to others, and the therapeutic ineffectiveness of traditional pharmacological and behavioral treatment may aggravate symptoms. Deep brain stimulation (DBS) has been tested in patients with little evidence in children and adolescents. Therefore, we analyzed the efficacy and safety of DBS in refractory aggression in pediatric subjects with autism (ASD) and severe intelligence deficit (ID).

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Amyloid-beta pathology-induced nanoscale synaptic disruption: the case of the GABAB-GIRK assembly.

Neural Regen Res

May 2025

Pharmacology Unit, Department of Pathology and Experimental Therapeutics, School of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Neuropharmacology & Pain Group, Neuroscience Program, Bellvitge Institute for Biomedical Research, L'Hospitalet de Llobregat, Spain (Ciruela F).

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Lessons from the physiological role of guanosine in neurodegeneration and cancer: Toward a multimodal mechanism of action?

Purinergic Signal

July 2024

Pharmacology Unit, Department of Pathology and Experimental Therapeutics, School of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, 08907 L'Hospitalet de Llobregat, Barcelona, Spain.

Neurodegenerative diseases and brain tumours represent important health challenges due to their severe nature and debilitating consequences that require substantial medical care. Interestingly, these conditions share common physiological characteristics, namely increased glutamate, and adenosine transmission, which are often associated with cellular dysregulation and damage. Guanosine, an endogenous nucleoside, is safe and exerts neuroprotective effects in preclinical models of excitotoxicity, along with cytotoxic effects on tumour cells.

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Background: Spinal cord stimulation (SCS) provides pain relief for some patients with persistent spinal pain syndrome type 2 (PSPS 2), but the precise mechanisms of action and prognostic factors for a favorable pain response remain obscure. This in vivo human genome-wide association study provides some pathophysiological clues.

Methods: We performed a high-density oligonucleotide microarray analysis of serum obtained from both PSPS 2 cases and pain-free controls who had undergone lower back spinal surgery at the study site.

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Idiopathic Parkinson's disease is determined by a combination of genetic and environmental factors. Recently, the first genome-wide association study on short-tandem repeats in Parkinson's disease reported on eight suggestive short-tandem repeat-based risk loci ( = 5.3 × 10), of which four were novel, i.

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Changes In Serum CXCL13 Levels Are Associated With Outcomes of Colorectal Cancer Patients Undergoing First-Line Oxaliplatin-Based Treatment.

Biomed Pharmacother

July 2024

CARE program, Germans Trias i Pujol Research Institute (IGTP), Campus Can Ruti, Carretera de Can Ruit, camí de les escoles s/n, Badalona 08916, Spain; ProCURE program, Catalan Institute of Oncology, Campus Can Ruti, Carretera de Can Ruit camí de les escoles s/n, Badalona 08916, Spain. Electronic address:

Metastatic colorectal cancer (mCRC) currently lacks reliable biomarkers for precision medicine, particularly for chemotherapy-based treatments. This study examines the behavior of 11 CXC chemokines in the blood of 104 mCRC patients undergoing first-line oxaliplatin-based treatment to pinpoint predictive and prognostic markers. Serum samples were collected before treatment, at response evaluation (EVAR), and at disease progression or last follow-up.

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