1,030 results match your criteria: "Hospital General Universitario Gregorio MarañónInstituto de Investigación Sanitaria Gregorio Marañón (IiSGM)[Affiliation]"

Deciphering long-term immune effects of HIV-1/SARS-CoV-2 co-infection: a longitudinal study.

Med Microbiol Immunol

December 2024

Immunology Section, Molecular Immuno-Biology Laboratory, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain.

Introduction: While the general immune response to Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2) is well-understood, the long-term effects of Human Immunodeficiency Virus-1/Severe Acute Respiratory Syndrome-Coronavirus-2 (HIV-1/SARS-CoV-2) co-infection on the immune system remain unclear. This study investigates the immune response in people with HIV-1 (PWH) co-infected with SARS-CoV-2 to understand its long-term health consequences.

Methods: A retrospective longitudinal study of PWH with suppressed viral load and SARS-CoV-2 infection was conducted.

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Background: Studies have shown associations between polygenic risk scores for educational attainment (PRS), cognitive reserve (CR), cognition, negative symptoms (NS), and psychosocial functioning in first-episode psychosis (FEP). However, their specific interactions remain unclear. This study aimed to investigate the mediating roles of CR, cognition, and NS in the relationship between PRS and psychosocial functioning one year after a FEP.

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Interrelationships between polygenic risk scores, cognition, symptoms, and functioning in first-episode psychosis: A network analysis approach.

Eur Neuropsychopharmacol

December 2024

Biomedical Network Research Centre on Mental Health (CIBERSAM), Spain; Institute of Neurosciences, University of Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Barcelona Clínic Schizophrenia Unit, Hospital Clínic of Barcelona, Neuroscience Institute, Barcelona, Spain.

Psychopathological manifestations and cognitive impairments are core features of psychotic disorders. Polygenic risk scores (PRS) offer insights into the relationships between genetic vulnerability, symptomatology, and cognitive impairments. This study used a network analysis to explore the connections between PRS, cognition, psychopathology, and overall functional outcomes in individuals experiencing a first episode of psychosis (FEP).

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Metabolomic Changes Associated With the Change in HVPG After DAAs Therapy in HCV Cirrhotic Patients.

Liver Int

January 2025

Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.

Background And Aims: In response to direct-acting antivirals (DAAs) therapy, patients who experience a decrease in hepatic venous pressure gradient (HVPG) considerably reduce liver complications and have increased survival. This study aimed to assess the metabolomic changes associated with the changes in HVPG from the start of DAA therapy until 48 weeks after effective DAA therapy in patients with advanced HCV-related cirrhosis.

Methods: We carried out a multicenter longitudinal study in 31 patients with advanced hepatitis C virus (HCV)-related cirrhosis.

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Purpose: Clostridioides difficile is the main cause of antibiotic related diarrhea and some ribotypes (RT), such as RT027, RT181 or RT078, are considered high risk clones. A fast and reliable approach for C. difficile ribotyping is needed for a correct clinical approach.

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Background: Despite evidence suggesting that age moderates the response to preventative treatment for those at clinical high risk of psychosis (CHR-P), no meta-analysis has assessed the effectiveness of preventative interventions for CHR-P children and adolescents. Our aim was to synthesise evidence assessing preventative interventions on a wide range of mental health outcomes for CHR-P children and adolescents.

Method: A systematic search was conducted on Ovid MEDLINE, Pubmed, APA PsycInfo and Web of Science until June 2024 (PROSPERO: CRD42023406696).

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Objectives: To determine if the subtype of vascular ultrasound (US) presentation is associated with different types of ischaemic complications (IC) in giant cell arteritis (GCA).

Methods: Retrospective observational analysis of GCA clinically confirmed patients referred to US fast-track clinics at two centres. All patients underwent baseline US of cranial and extracranial arteries (carotid, subclavian and axillary).

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Background: Both childhood adversity (CA) and first-episode psychosis (FEP) have been linked to alterations in cortical thickness (CT). The interactive effects between different types of CAs and FEP on CT remain understudied.

Methods: One-hundred sixteen individuals with FEP (mean age = 23.

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Background & Aims: Expression of P21, encoded by the gene, has been associated with fibrosis progression in steatotic liver disease (SLD); however, the underlying mechanisms remain unknown. In the present study, we investigated the function of CDKN1A in SLD.

Methods: expression levels were evaluated in different patient cohorts with SLD, fibrosis, and advanced chronic liver disease (ACLD).

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Polygenic and Polyenvironment Interplay in Schizophrenia-Spectrum Disorder and Affective Psychosis; the EUGEI First Episode Study.

Schizophr Bull

December 2024

Social, Genetics and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, United Kingdom.

Background: Multiple genetic and environmental risk factors play a role in the development of both schizophrenia-spectrum disorders and affective psychoses. How they act in combination is yet to be clarified.

Methods: We analyzed 573 first episode psychosis cases and 1005 controls, of European ancestry.

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Tc-DTPA-Collagen Radiotracer for the Noninvasive Detection of Infective Endocarditis.

ACS Infect Dis

December 2024

Unidad de Medicina y Cirugía Experimental, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), 28007 Madrid, Spain.

Infective endocarditis (IE) represents a significant concern among hospital-acquired infections, frequently caused by the Gram-positive bacterium . Nuclear imaging is emerging as a noninvasive and precise diagnostic tool. However, the gold standard radiotracer [F]-FDG cannot distinguish between infection and inflammation, resulting in false positives.

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The mechanisms underlying the cardiac effects of modified citrus pectin in obese rats with myocardial ischemia: Role of galectin-3.

Clin Investig Arterioscler

December 2024

Departamento de Fisiología, Facultad de Medicina, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Universidad Complutense de Madrid, Madrid, Spain; Ciber de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Majadahonda, Spain. Electronic address:

Background: Modified citrus pectin (MCP) is used as a nutritional supplement that inhibits galectin-3 activity, a central player in the cardiac damage associated with different pathological situations. In fact, we have previously observed that MCP improved cardiac function in obese infarcted rats that was associated with a reduction in cardiac fibrosis. Therefore, the aim of the present study was to further explore whether this effect could involve the modulation of gene expression of ECM components and their mediators as well as whether it could affect another two mechanisms involved in cardiac damage: mitochondrial dynamics and autophagic flux.

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Background: The association between cannabis and psychosis is established, but the role of underlying genetics is unclear. We used data from the EU-GEI case-control study and UK Biobank to examine the independent and combined effect of heavy cannabis use and schizophrenia polygenic risk score (PRS) on risk for psychosis.

Methods: Genome-wide association study summary statistics from the Psychiatric Genomics Consortium and the Genomic Psychiatry Cohort were used to calculate schizophrenia and cannabis use disorder (CUD) PRS for 1098 participants from the EU-GEI study and 143600 from the UK Biobank.

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Clinical phenotypes of COVID-19, associated with mortality risk, have been identified in the general population. The present study assesses their applicability in solid organ transplant recipients (SOTR) hospital-admitted by COVID-19. In a cohort of 488 SOTR, nonvaccinated (n = 394) and vaccinated (n = 94) against SARS-CoV-2, we evaluated 16 demographic, clinical, analytical, and radiological variables to identify the clinical phenotypes A, B, and C.

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Cardiovascular diseases (CVD) are the leading cause of death worldwide. Therefore, it is essential to understand their relationship and prevalence in different diseases that may present specific risk factors for them. The objective of this document is to analyze the specific prevalence of CVD in patients with inflammatory bowel disease (IBD), describing the presence of classical and non-classical cardiovascular risk factors in these patients.

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Objective: To evaluate the efficacy of neoadjuvant chemotherapy combination with liposomal irinotecan, 5-fluorouracil, leucovorin, and oxaliplatin in patients with locally advanced rectal cancer.

Methods: This was a phase 2, nonrandomized, multicenter study in adults with stage II or III rectal cancer and an Eastern Cooperative Oncology Group performance status of 0 to 1. Total neoadjuvant therapy (TNT) consisted of neoadjuvant chemotherapy combination with liposomal irinotecan (60 mg/m2), oxaliplatin (60 mg/m2), leucovorin (400 mg/m2), and fluorouracil (2400 mg/m²), followed by chemoradiotherapy [ie, capecitabine (825 mg/m2) and radiotherapy according to the standard of care].

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Background: The combination chemotherapy i.v. 5-fluorouracil (5-FU), irinotecan, and aflibercept (FOLFIRI-A) is a standard second-line treatment of metastatic colorectal cancer (mCRC).

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Early use of infection control methods is critical for preventing the spread of antimicrobial resistance. Whole-genome sequencing (WGS) is considered the gold standard for investigating outbreaks; however, the turnaround time is usually too long for clinical decision-making and the method is also costly. The aim of this study was to evaluate the performance of Fourier transform infrared (FTIR) and artificial intelligence tools as a first-line typing tool for typing carbapenemase-producing (CPK) in the hospital setting.

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(1) Background: To describe hospitalizations due to respiratory syncytial virus (RSV) infection among children and elderly patients with asthma. (2) Methods: We used a nationwide discharge database to select patients with asthma aged 0 to 15 years and ≥65 years admitted to Spanish hospitals from 2016 to 2022. (3) Results: We identified 49,086 children and 471,947 elderly patients hospitalized with asthma (3.

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PERSISTENCE, EFFECTIVENESS, AND SAFETY OF UPADACITINIB IN CROHN'S DISEASE AND ULCERATIVE COLITIS IN REAL LIFE: RESULTS FROM A SPANISH NATIONWIDE STUDY (UREAL STUDY): Upadacitinib for IBD.

Am J Gastroenterol

November 2024

Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM) and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain.

Background: Real-world data on the effectiveness of upadacitinib for inflammatory bowel disease (IBD) are limited.

Aims: To assess upadacitinib persistence, effectiveness, and safety in a real-world scenario.

Methods: Retrospective multicentre study of IBD patients who received upadacitinib before 31st December 2022 and at least 12 weeks before the recruitment date.

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Background: In metastatic colorectal cancer (mCRC), improvements in survival from combining leucovorin/fluorouracil/oxaliplatin/irinotecan (FOLFOXIRI) with bevacizumab have come at the risk of increased rates of high-grade toxicities. Trilaciclib is indicated to decrease the incidence of chemotherapy-induced myelosuppression in patients receiving standard-of-care chemotherapy for extensive-stage small cell lung cancer.

Methods: Patients with untreated mCRC were randomized 1:1 to trilaciclib (n = 164) or placebo (n = 162) prior to FOLFOXIRI/bevacizumab for up to 12 cycles (induction), followed by trilaciclib or placebo prior to fluorouracil/leucovorin/bevacizumab (maintenance).

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Cannabis use and cognitive biases in people with first-episode psychosis and their siblings.

Psychol Med

November 2024

Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain.

Background: Cannabis use and familial vulnerability to psychosis have been associated with social cognition deficits. This study examined the potential relationship between cannabis use and cognitive biases underlying social cognition and functioning in patients with first episode psychosis (FEP), their siblings, and controls.

Methods: We analyzed a sample of 543 participants with FEP, 203 siblings, and 1168 controls from the EU-GEI study using a correlational design.

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Three-year survival follow-up of patients with gastrointestinal cancer treated during the COVID-19 pandemic in Spain: data from the PANDORA-TTD20 study.

Oncologist

November 2024

Medical Oncology Department, Hospital Universitario Reina Sofía, Universidad de Córdoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), CIBERONC, Instituto de Salud Carlos III (ISCIII), Córdoba, 14004, Spain.

Introduction: The initial SARS-CoV-2 pandemic wave in Spain in 2020 precipitated significant paradigm shifts in gastrointestinal oncology patient management. This study captures the "Zeitgeist" of this period by analyzing adaptive strategies, treatment modifications, and survival outcomes, leveraging a 3-year follow-up perspective to extract insights from this unprecedented experience.

Methods: We conducted a multicenter, retrospective cohort study utilizing the RETUD-TTD registry, encompassing 703 patients across 19 Spanish centers in April 2020.

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