20,695 results match your criteria: "VU University Medical[Affiliation]"

CSF proteins of inflammation, proteolysis and lipid transport define preclinical AD and progression to AD dementia in cognitively unimpaired individuals.

Mol Neurodegener

November 2024

Neurochemistry Laboratory and Biobank, Department of Laboratory Medicine, Amsterdam Neuroscience, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.

This preclinical AD CSF proteome study identified a panel of 12-CSF markers detecting amyloid positivity and clinical progression to AD with high accuracy; some of these CSF proteins related to immune function, neurotrophic processes, energy metabolism and endolysosomal functioning (e.g., ITGB2, CLEC5A, IGFBP-1, CST3) changed before amyloid positivity is established.

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Extracellular vesicles (EVs) have emerged as important mediators of intercellular communication in the heart under homeostatic and pathological conditions, such as myocardial infarction (MI). However, the basic mechanisms driving cardiomyocyte-derived EV (CM-EV) production following stress are poorly understood. In this study, we generated human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) that express NanoLuc-tetraspanin reporters.

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Short-term Frailty Index Fluctuations in Older Adults: Noise or Signal?

J Gerontol A Biol Sci Med Sci

December 2024

Geriatric Medicine, Department of Medicine, Dalhousie University & Nova Scotia Health, Halifax, Nova Scotia, Canada.

Background: Reversible short-term fluctuations in the frailty index (FI) are often thought of as representing only noise or error. Here, we assess (i) the size and source of short-term FI fluctuations, (ii) variation across sociodemographic characteristics, (iii) association with chronic diseases, (iv) correlation with age, frailty level, frailty change, and mortality, and (v) whether fluctuations reflect discrete health transitions.

Methods: Nationwide, biweekly longitudinal data from 426 community-dwelling older adults (70+) were collected in the FRequent health Assessment In Later life (FRAIL70+) study using a measurement burst design (5 122 repeated observations, median of 13 repeated observations per person).

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Background: Fractional flow reserve (FFR) or non-hyperaemic pressure ratios are recommended to assess functional relevance of intermediate coronary stenosis. Both diagnostic methods require the placement of a pressure wire in the coronary artery during invasive coronary angiography. Quantitative flow ratio (QFR) is an angiography-based computational method for the estimation of FFR that does not require the use of pressure wires.

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Article Synopsis
  • The study investigates the relationship between graft-versus-host disease (GVHD) and graft-versus-leukemia (GVL) effects in acute myeloid leukemia (AML) patients after stem-cell transplantation (SCT), specifically comparing standard and post-transplant cyclophosphamide (PTCy) methods.
  • Results show that while GVHD correlates with lower relapse rates and higher non-relapse mortality (NRM) and lower overall survival (OS) in standard cases, following PTCy, GVHD does not reduce relapse.
  • The findings indicate that although GVHD remains a significant factor in SCT outcomes, its role changes depending on the type of prophylaxis used, particularly diminishing its association with relapse in the PTC
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Preventing in-prison violence and maintaining a safe environment is an important goal within prison settings. Screening for violence risk may provide a valuable addition to reach this goal. Within the Dutch prison system, the Risk Screener Violence (RS-V) has become an important new element in overall risk management.

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Sexual education and development after early childhood sexual abuse: A qualitative study of experiences of parents and children.

Child Abuse Negl

December 2024

Amsterdam University Medical Centers, Department of Child and Adolescent Psychiatry, University of Amsterdam, Amsterdam, the Netherlands; Levvel, Academic Center for Child and Adolescent Psychiatry, Amsterdam, the Netherlands.

Background: In the Amsterdam Sexual Abuse Case (ASAC), infants and toddlers experienced childhood sexual abuse (CSA). The perpetrator was convicted, and psychosocial care was offered to children and families. A research project was established to investigate the impact of CSA at an early age, with this study specifically focusing on sexual education and development.

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Article Synopsis
  • This study aimed to assess the reliability of a short food frequency questionnaire designed to evaluate dietary patterns associated with type 2 diabetes risk and to create a Diabetes Dietary Quality Index.
  • Healthy participants completed the questionnaire, and the results indicated good reproducibility, showing consistent correlation in responses.
  • Findings revealed that a higher Diabetes Dietary Quality Index score was linked to improved metabolic health, including lower post-meal glucose and insulin levels, as well as better cholesterol profiles.
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The effectiveness of Problem Management Plus at 1-year follow-up for Syrian refugees in a high-income setting.

Epidemiol Psychiatr Sci

October 2024

Department of Clinical, Neuro- and Developmental Psychology, WHO Collaborating Center for Research and Dissemination of Psychological Interventions, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.

Aims: Problem Management Plus (PM+) has been effective in reducing mental health problems among refugees at three-month follow-up, but there is a lack of research on its long-term effectiveness. This study examined the effectiveness of PM+ in reducing symptoms of common mental disorders at 12-month follow-up among Syrian refugees in the Netherlands.

Methods: This single-blind, parallel, controlled trial randomised 206 adult Syrians who screened positive for psychological distress and impaired functioning to either PM+ in addition to care as usual (PM+/CAU) or CAU alone.

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The Myelodysplastic syndromes (MDS) are a heterogenous group of clonal bone marrow (BM) stem cell myeloid neoplasms, characterized by bone marrow (BM) dysplasia, macrocytic anemia or cytopenia with a tendency for leukemic transformation. The suspicion of MDS is raised by a typical but not specific clinical picture and routine labs, but the gold standard for MDS diagnosis is still BM examination with the presence of uni-or multi-lineage dysplasia and blast percentage, together with exclusion of other reasons. Cytogenetics is also a part of the diagnostic process.

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Musculoskeletal Pain in Adolescents Engaged in Impact and Nonimpact Sports-ABCD Growth Study.

Pediatr Exerc Sci

October 2024

Post Graduate Program in Movement Sciences, Department of Physical Education, Sao Paulo State University (UNESP), Presidente Prudente, SP,Brazil.

Purpose: This study aimed to identify, through a 28-week follow-up, the association between pain and engagement in different sports among adolescents.

Methods: In total, 63 adolescents reported the occurrence of pain, which was tracked weekly. Participants were categorized into 2 groups based on their sports participation: "swimming group" and "other sports group.

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Introduction: NSCLC is the leading cause of cancer-related deaths globally, with a low survival rate primarily due to NSCLC frequently becoming chemoresistant. Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase involved in pathways regulating multiple processes in the cell, including survival, migration, and the TME, that contribute to both tumor progression and drug resistance. Recently, FAK inhibitors (FAKi) have shown promising potential for the treatment of NSCLC.

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Retraction notice to "Dual targeting of TGF-β and PD-L1 inhibits tumor growth in TGF-β/PD-L1-driven colorectal carcinoma" [Life Sci. 328 (2023) 121865].

Life Sci

December 2024

Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; College of Medicine, University of Warith Al-Anbiyaa, Karbala, Iraq; School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Kelvin Grove, Brisbane, QLD 4059, Australia; School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George St, Brisbane City, QLD 4000, Australia.

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Biomarker pathway heterogeneity of amyloid-positive individuals.

Alzheimers Dement

December 2024

Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, Queen Square, London, UK.

Article Synopsis
  • * Three distinct subtypes were found: one with early logical memory changes progressing to tau and white matter issues, another showing early white matter changes with older age and hypertension, and a third resembling typical Alzheimer's disease with early tau signals.
  • * The findings suggest that the diversity in these individuals is influenced by co-existing conditions, particularly vascular diseases, indicating that understanding these variations is crucial for better grasping Alzheimer’s disease progression.
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Periodic health evaluation in Para athletes: a position statement based on expert consensus.

BMJ Open Sport Exerc Med

October 2024

School of Physical Education, Physical Therapy and Occupational Therapy, Department of Physical Therapy, Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.

Para athletes present a broad range of sports-related injuries and illnesses, frequently encountering barriers when accessing healthcare services. The periodic health evaluation (PHE) is a valuable tool for continuously monitoring athletes' health, screening for health conditions, assisting in the surveillance of health problems by establishing baseline information and identifying barriers to athlete's performance. This position statement aims to guide sports healthcare providers in the PHE for Para athletes across key impairment categories: intellectual, musculoskeletal, neurological and vision.

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This study aimed to report the effect of a 6-week light-active versus moderate-active physical activity intervention embedded in a multimodal day treatment program on selected measures of cognitive control (i.e., response inhibition, error processing, and cognitive interference) and trait impulsivity.

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Article Synopsis
  • The study focuses on identifying brain amyloid positivity in non-demented individuals, which is vital for early Alzheimer's disease diagnosis and treatment to start before symptoms appear.
  • Researchers developed predictive models using data from 853 participants, analyzing various factors like demographics, cognitive tests, and biomarkers related to Alzheimer's.
  • The best-performing model, which included blood biomarkers and ApoE status, achieved high accuracy rates (AUCs of 0.82 and 0.90) in predicting amyloid positivity, surpassing traditional models that relied only on demographic and cognitive data.
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Data-driven, harmonised classification system for myelodysplastic syndromes: a consensus paper from the International Consortium for Myelodysplastic Syndromes.

Lancet Haematol

November 2024

Center for Accelerating Leukemia/Lymphoma Research at Comprehensive Cancer Center, IRCCS Humanitas Research Hospital, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Milan, Italy. Electronic address:

Article Synopsis
  • The WHO and International Consensus Classification 2022 aim to improve diagnosis and treatment decisions for myelodysplastic syndromes, but disparities in their implementation exist.
  • A panel of experts used a data-driven method and the Delphi consensus process to align the two classifications, focusing on genomic features to create harmonized labels for distinct clusters.
  • Key findings identified nine genomic clusters, with the most significant linked to biallelic TP53 inactivation, and highlighted the inadequacy of traditional morphological assessments in capturing the complexity of these diseases.
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Genetic Heterogeneity Across Dimensions of Alcohol Use Behaviors.

Am J Psychiatry

November 2024

Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Vrije Universiteit Amsterdam (Savage, Phung, Posthuma); Department of Psychiatry and Behavioral Sciences, SUNY Downstate Health Sciences University, Brooklyn, New York (Barr, Meyers, Porjesz); VA New York Harbor Healthcare System, Brooklyn, New York (Barr, Meyers); Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine (Lee, Zhang, Ge, Smoller, Mallard), and Center for Precision Psychiatry (Ge, Smoller), Massachusetts General Hospital, Boston; Department of Psychiatry, Harvard Medical School, Boston (Lee, Ge, Smoller, Mallard); Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge (Lee, Zhang, Ge, Smoller, Mallard); Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston (Zhang); Department of Psychiatry, Washington University School of Medicine, St. Louis (McCutcheon); Department of Medicine, Division of Genetic Medicine, Vanderbilt University Medical Center, Nashville (Davis, Sanchez-Roige); Department of Child and Adolescent Psychology and Psychiatry, section Complex Trait Genetics, VU University Medical Center, Amsterdam (Posthuma); Department of Psychiatry and Institute for Genomic Medicine, University of California San Diego, La Jolla (Sanchez-Roige).

Article Synopsis
  • The study investigates the genetic factors related to various alcohol use behaviors (AUBs) by analyzing large samples from the UK Biobank, recognizing the complexity and diversity of AUBs in its approach.
  • Researchers identified four latent genetic factors tied to AUBs, including how people consume alcohol and their drinking preferences, suggesting distinct genetic associations for each factor.
  • The findings emphasize the need for deep phenotyping and more sophisticated methods to better understand the genetics of AUBs, which remain poorly understood despite large sample sizes in previous genome-wide studies.
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Adjuvant immunotherapy in older patients with stage III and resected stage IV melanoma: Toxicity and recurrence-free survival outcomes from the Dutch melanoma treatment registry.

Eur J Cancer

November 2024

Department of Medical Oncology, Leiden University Medical Center, Albinusdreef 2, Leiden 2333ZA, the Netherlands; Department of Medical Oncology, Helse Førde, Svanehaugvegen 2, 6812 Førde, Norway. Electronic address:

Background: Adjuvant anti-PD-1 therapy improves relapse free survival in stage III melanoma, but also leads to immune-related adverse events (irAEs). Older patients are of particular interest due to comorbidities and frailty, which may impact their ability to tolerate irAEs and benefit from anti-PD-1 therapy. This study aimed to explore associations between clinical parameters and the occurrence of grade ≥ 3 irAEs and recurrence-free survival (RFS) in older patients with radically resected stage III/IV cutaneous melanoma treated with adjuvant anti-PD-1 therapy.

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The treatment of older patients with acute myeloid leukemia (AML) considered unfit for receiving intensive chemotherapy is challenging. Based on the hypothesis that addition of the broad tyrosine kinase inhibitor (TKI) midostaurin could improve the response to hypomethylating agents, irrespective of FLT3 gene mutational status, we conducted a randomized phase II multicenter study to assess the tolerability and efficacy of the addition of midostaurin to a 10-day schedule of decitabine in unfit (i.e.

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Background: It is unclear whether social isolation and loneliness may precede frailty status or whether frailty may precipitate social isolation and loneliness. We investigated the reciprocal and temporal sequence of social isolation, loneliness, and frailty among older adults across 21 years.

Methods: We used seven waves of the Longitudinal Aging Study Amsterdam from 2302 Dutch older adults (M = 72.

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Gene-environmental influence of space and microgravity on red blood cells with sickle cell disease.

NPJ Genom Med

September 2024

Dutch Experiment Support Center (DESC), Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam Bone Center (ABC), Amsterdam UMC Location VU University Medical Center (VUmc) & Academic Centre for Dentistry Amsterdam (ACTA), Gustav Mahlerlaan 3004, 1081, LA Amsterdam, The Netherlands.

A fundamental question in human biology and for hematological disease is how do complex gene-environment interactions lead to individual disease outcome? This is no less the case for sickle cell disease (SCD), a monogenic disorder of Mendelian inheritance, both clinical course, severity, and treatment response, is variable amongst affected individuals. New insight and discovery often lie between the intersection of seemingly disparate disciplines. Recently, opportunities for space medicine have flourished and have offered a new paradigm for study.

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Article Synopsis
  • Type 2B Von Willebrand disease (VWD) is a bleeding disorder linked to specific genetic variations in the VWF gene, and the study aimed to explore how these genetic differences affect clinical symptoms over a 16-year period in a cohort of 64 patients.
  • The research found that 67.2% of patients experienced thrombocytopenia (low platelet counts), which was most significantly associated with the p.Arg1306Trp genetic variant, showing considerably lower platelet counts compared to another variant, p.Arg1308Cys.
  • Additionally, while some patient pregnancies led to decreased platelet counts, postpartum hemorrhages occurred despite preventative treatment, highlighting the complex relationship between genetic factors and bleeding events in affected individuals.
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Background: Deep grey matter pathology is a key driver of disability worsening in people with multiple sclerosis. Quantitative susceptibility mapping (QSM) is an advanced magnetic resonance imaging (MRI) technique which quantifies local magnetic susceptibility from variations in phase produced by changes in the local magnetic field. In the deep grey matter, susceptibility has previously been validated against tissue iron concentration.

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