36,302 results match your criteria: "University of Barcelona)[Affiliation]"

Background: Dental caries remains the most prevalent chronic disease worldwide. Hence the importance of detecting and evaluating caries and combining this with additional diagnostic methods to ensure the best treatment. The main objective was to study what is the sensitivity and specificity for detecting initial and cavitated caries lesions by students in third, fourth and fifth year of the Degree in Dentistry at the University of Barcelona, analysing if there is any difference between the diagnoses and treatments among the different years and each student's clinical experience.

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Germline structural variant as the cause of Lynch Syndrome in a family from Ecuador.

NPJ Genom Med

January 2025

Gastroenterology Deparment, Hospital Clínic Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), University of Barcelona, Barcelona, Spain.

Colorectal cancer (CRC) is one of the most common cancers worldwide. Lynch Syndrome (LS) is the most common form of hereditary CRC and it is caused by germline defects in the DNA-mismatch repair (MMR) pathway. It is of extreme importance for affected LS patients and their relatives to identify the germline causative alteration to provide intensified surveillance to those at risk and allow early diagnosis and cancer prevention.

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PURPOSE EXONERATE (EXOsome and cell-free micro-RNAs of anti-EGFR ResistAnce) was an open-label, biomarker interventional study designed to develop, test, and validate a liquid biopsy predictive of progression-free survival (PFS), overall survival (OS), and objective response rate (ORR) for first-line EGFR inhibitors in metastatic colorectal cancer (mCRC). PATIENTS AND METHODS Patients with newly diagnosed RAS-WT, chemotherapy-naïve mCRC, both right- and left-sided, were enrolled in 2-nationwide trials to receive cetuximab or panitumumab along with chemotherapy. The primary endpoint was 12-month PFS, which was hierarchically tested in left- and right-sided mCRC to predict PFS, OS, and ORR.

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Introduction: Open ureteroenteric reimplantation (OUER) of ureteroenteric strictures (UESs) is related to important morbidity. Robot-assisted ureteroenteric reimplantation (RUER) has been proposed to provide similar outcomes with lower morbidity. We aimed to compare perioperative and functional outcomes between RUER and OUER.

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Growing evidence places the gestational period as a unique moment of heightened neuroplasticity in adult life. In this longitudinal study spanning pre, during, and post pregnancy, we unveil a U-shaped trajectory in gray matter (GM) volume, which dips in late pregnancy and partially recovers during postpartum. These changes are most prominent in brain regions associated with the Default Mode and Frontoparietal Network.

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Dysregulated microglia activation, leading to neuroinflammation, is crucial in neurodegenerative disease development and progression. We constructed an atlas of human brain immune cells by integrating nineteen single-nucleus RNA-seq and single-cell RNA-seq datasets from multiple neurodegenerative conditions, comprising 241 samples from patients with Alzheimer's disease, autism spectrum disorder, epilepsy, multiple sclerosis, Lewy body diseases, COVID-19, and healthy controls. The integrated Human Microglia Atlas (HuMicA) included 90,716 nuclei/cells and revealed nine populations distributed across all conditions.

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Myocardial infarction with non-obstructive coronary arteries: a journey beyond angiography.

Heart

January 2025

Hospital Clínic de Barcelona, Cardiovascular Clinic Institute, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Catalunya, Spain

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Discovery of (3-Phenylcarbamoyl-3,4-dihydro-2-pyrrol-2-yl)phosphonates as Imidazoline Receptor Ligands with Anti-Alzheimer and Analgesic Properties.

J Med Chem

January 2025

Laboratory of Medicinal Chemistry (Associated Unit to CSIC), Department of Pharmacology, Toxicology and Medicinal Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av. Joan XXIII, 27-31, Barcelona 08028, Spain.

Imidazoline receptors (I-IRs) are altered in Alzheimer's disease (AD) patients and are associated with analgesia. I-IRs are not structurally described, and their pharmacological characterization relies on their modulation by highly affine ligands. Herein, we describe the synthesis of (3-phenylcarbamoyl-3,4-dihydro-2-pyrrol-2-yl)phosphonates endowed with relevant affinities for I-IRs in human brain tissues.

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Comprehensive Characterization of Raw and Processed Quinoa from Conventional and Organic Farming by Label-Free Shotgun Proteomics.

J Agric Food Chem

January 2025

Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA·UB), University of Barcelona, 08028 Barcelona, Spain.

Quinoa is widely recognized for its exceptional nutritional properties, particularly its complete protein content. This study, for the first time, investigates the effects of processing methods (boiling and extrusion) and farming conditions (conventional and organic) on the proteomic profile. Following a label-free shotgun proteomics approach, a total of 1796 proteins were identified and quantified across all quinoa samples.

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Anatomical study of the posterior talofibular ligament: A descriptive analysis of its dual-bundle structure.

Foot Ankle Surg

January 2025

Department of Orthopaedics, Clinica del Remei, Barcelona, Spain; Department of Anatomy and Human Embryology, Faculty of Medicine, University of Barcelona, Barcelona, Spain. Electronic address:

Background: The lateral ankle ligament complex, consisting of the anterior talofibular ligament (ATFL), calcaneofibular ligament (CFL), and posterior talofibular ligament (PTFL), is essential for ankle stability. While the ATFL and CFL are frequently studied, the PTFL's role remains less explored.

Methods: Twelve fresh-frozen ankle specimens were dissected to analyze the PTFL's origin, trajectory, and talar insertion, focusing on its bundles and anatomical relationships.

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PurposeChimeric antigen receptor (CAR) T-cell CD19 therapy has changed the treatment paradigm for patients with relapsed/refractory B-cell acute lymphoblastic leukemia. It is frequently associated with potentially severe toxicities: cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS), and admission to PICU is often required. Some biomarkers seem to correlate with CRS severity.

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Deep cascaded registration and weakly-supervised segmentation of fetal brain MRI.

Heliyon

January 2025

BCN MedTech, Department of Information and Communication Technologies, Universitat Pompeu Fabra, Barcelona, Spain.

Deformable image registration is a cornerstone of many medical image analysis applications, particularly in the context of fetal brain magnetic resonance imaging (MRI), where precise registration is essential for studying the rapidly evolving fetal brain during pregnancy and potentially identifying neurodevelopmental abnormalities. While deep learning has become the leading approach for medical image registration, traditional convolutional neural networks (CNNs) often fall short in capturing fine image details due to their bias toward low spatial frequencies. To address this challenge, we introduce a deep learning registration framework comprising multiple cascaded convolutional networks.

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X-linked hypophosphataemia (XLH) is a rare metabolic bone disorder caused by pathogenic variants in the PHEX gene, which is predominantly expressed in osteoblasts, osteocytes and odontoblasts. XLH is characterized by increased synthesis of the bone-derived phosphaturic hormone fibroblast growth factor 23 (FGF23), which results in renal phosphate wasting with consecutive hypophosphataemia, rickets, osteomalacia, disproportionate short stature, oral manifestations, pseudofractures, craniosynostosis, enthesopathies and osteoarthritis. Patients with XLH should be provided with multidisciplinary care organized by a metabolic bone expert.

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Bioresorbable Vascular Scaffolds Journey: A New Brick Into a Still Dismantled Wall.

JACC Cardiovasc Interv

January 2025

Hospital Clínic, Cardiovascular Clinic Institute, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain.

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Background: Bacterial pulmonary superinfections develop in a substantial proportion of mechanically ventilated COVID-19 patients and are associated with prolonged mechanical ventilation requirements and an increased mortality. Albeit recommended, evidence supporting the use of empirical antibiotics at intubation is weak and of low quality. The aim of this study was to elucidate the effect of empirical antibiotics, administered within 24hours of endotracheal intubation, on superinfections, duration of mechanical ventilation, and mortality in mechanically ventilated patients with COVID-19.

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Association between dairy products intake and frailty transitions in older adults: The InCHIANTI cohort study.

J Nutr Health Aging

January 2025

Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 28029 Madrid, Spain.

Objective: To evaluate the association between dairy products consumption and the probability of frailty transitions in community-dwelling older adults.

Design: Longitudinal study.

Setting And Participants: We included 863 community-dwelling participants ≥65 years from the Chianti region in Italy.

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Background: Clinical practice guidelines for acute coronary syndrome recommend an interval between electrocardiogram (ECG) and balloon of <60 min in patients attending the emergency department (ED) of a hospital with primary angioplasty capacity. Compliance with this can be complex, especially in atypical presentations.

Objective: To assess the effectiveness of specific training for ED triage nurses in reducing ECG-balloon time in STEMI.

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Background: Child sexual exploitation (CSE) involves using a child or youth as a sexual object in exchange for remuneration, reward, or favors, meeting their survival needs, and also serving the perpetrator's aims for sexual, social, or economic gain.

Objective: The present study addresses the prevalence of CSE in Spain.

Participants: A representative sample of 4024 secondary school adolescents from 14 to 17 years old (M = 15.

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Nuclear magnetic resonance (NMR) spectroscopy is a valuable diagnostic tool limited by low sensitivity due to low nuclear spin polarization. Hyperpolarization techniques, such as dissolution dynamic nuclear polarization, significantly enhance sensitivity, enabling real-time tracking of cellular metabolism. However, traditional high-field NMR systems and bioreactor platforms pose challenges, including the need for specialized equipment and fixed sample volumes.

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This study presents a thorough bibliometric analysis of Neuroinformatics over the past 20 years, offering insights into the journal's evolution at the intersection of neuroscience and computational science. Using advanced tools such as VOS viewer and methodologies like co-citation analysis, bibliographic coupling, and keyword co-occurrence, we examine trends in publication, citation patterns, and the journal's influence. Our analysis reveals enduring research themes like neuroimaging, data sharing, machine learning, and functional connectivity, which form the core of Neuroinformatics.

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Lauryl-NrTP6 lipopeptide self-assembled nanorods for nuclear-targeted delivery of doxorubicin.

Nanoscale

January 2025

Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia-San Sebastián, Spain.

Targeted delivery offers solutions for more efficient therapies with fewer side effects. Here, lipopeptides (LPs) prepared by conjugation of the nuclear-targeting peptide analogue H-YKQSHKKGGKKGSG-NH (NrTP6) and two lauric acid chains are used to encapsulate the chemotherapeutic agent doxorubicin (DX) through a solvent-exchange protocol. LPs spontaneously form nanosized rod-like assemblies in phosphate buffer.

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Advances in the Classification of Aggressive B-cell Lymphomas.

Adv Anat Pathol

January 2025

Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS).

Aggressive B-cell lymphomas are a biologically and clinically very heterogeneous group of tumors that may be related to different stages of B-cell differentiation development. This review aims to summarize recent advances in the understanding of these tumors with a focus on the practical approach to the diagnosis of these entities. We analyze the defining characteristics of the different subtypes of aggressive B-cell lymphomas, including nodal and extranodal diffuse large B-cell lymphoma, virus-associated lymphomas, terminally differentiated B-cell lymphomas, high-grade B-cell lymphomas, and Burkitt lymphoma.

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The indication for kidney transplantation over a urinary diversion (UD) for patients with severe lower urinary tract dysfunction and end-stage renal disease is a controversial issue. Thanks to advances in robot-assisted kidney transplant (RAKT) programs, the boundaries are being pushed further. We present the first RAKT series reported for patients undergoing simple cystectomy and UD for benign bladder disease.

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