1,153 results match your criteria: "Amsterdam UMC - Location Vrije Universiteit Amsterdam[Affiliation]"

Oncolytic adenoviruses derived from human serotype 5 (Ad5) are being developed to treat cancer. Treatment efficacy could be affected by pre-existing or induced neutralizing antibodies (NAbs), in particular in repeat administration strategies. Several oncolytic adenoviruses that are currently in clinical development have modified fiber proteins to increase their infectivity.

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The lncRNA DSCR9 is modulated in pulmonary arterial hypertension endothelial cell models and is associated with alterations in the nitric oxide pathway.

Vascul Pharmacol

January 2025

Department of Internal Medicine, University of Genova, Genova, Italy; IRCCS Ospedale Policlinico San Martino, Genova, Italy. Electronic address:

Long non-coding RNA (lncRNA) may be involved in dysfunction of pulmonary artery endothelial cells (PAEC) and, thus, in pulmonary arterial hypertension (PAH) pathobiology. We screened the RNA expression profile of commercial human PAEC (hPAEC) exposed to increased hydrostatic pressure, and found that the lncRNA Down syndrome critical region 9 (DSCR9) was the most regulated transcript (log2FC 1.89 vs control).

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Purpose: In prostate cancer patients, high radiation doses to the urethra have been associated with an increased risk of severe genitourinary toxicity following dose-escalated radiotherapy. Urethra-sparing techniques have emerged as a promising approach to reduce urinary toxicity. This international survey aims to evaluate current global practices in urethra-sparing and explore future directions for the implementation of this technique in external beam radiotherapy (EBRT) for prostate cancer.

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Context: The aim of this scoping review was to provide an overview of recent studies in peer reviewed journals investigating self-reported motivations to have an abortion or to continue an unwanted pregnancy in different countries and settings, including both qualitative and quantitative results.

Methods: We searched for English language publications published between 2008 and 2023 indexed in four scientific databases. We included studies if they captured people's own motivations for abortion and/ or for continuing an unwanted pregnancy.

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SIRE: Scale-invariant, rotation-equivariant estimation of artery orientations using graph neural networks.

Med Image Anal

January 2025

Department of Applied Mathematics, Technical Medical Centre, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands.

The orientation of a blood vessel as visualized in 3D medical images is an important descriptor of its geometry that can be used for centerline extraction and subsequent segmentation, labeling, and visualization. Blood vessels appear at multiple scales and levels of tortuosity, and determining the exact orientation of a vessel is a challenging problem. Recent works have used 3D convolutional neural networks (CNNs) for this purpose, but CNNs are sensitive to variations in vessel size and orientation.

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Purpose: Infective endocarditis (IE) can be complicated by vertebral osteomyelitis (VO). This study investigates risk factors associated with VO in patients with infective endocarditis, and 6-month mortality and relapse rates in patients with IE and concomitant VO.

Methods: We performed a observational study in two hospitals between September 2016 and October 2022.

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Introduction: Unipolar and bipolar mood disorders in older adults are accompanied by cognitive impairment, including executive dysfunction, with a severe impact on daily life. Up and till now, strategies to improve cognitive functioning in late-life mood disorders (LLMD) are sparse. Therefore, we aimed to assess the efficacy of adaptive, computerized cognitive training (CT) on executive and subjective cognitive functioning in LLMD.

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Background: Current diagnostic imaging modalities have limited ability to differentiate between malignant and benign pancreaticobiliary disease, and lack accuracy in detecting lymph node metastases. F-Prostate-Specific Membrane Antigen (PSMA) PET/CT is an imaging modality used for staging of prostate cancer, but has incidentally also identified PSMA-avid pancreatic lesions, histologically characterized as pancreatic ductal adenocarcinoma (PDAC). This phase I/II study aimed to assess the feasibility of F-PSMA PET/CT to detect PDAC.

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A Patient-Oriented Implementation Strategy for a Perioperative mHealth Intervention: Feasibility Cohort Study.

JMIR Perioper Med

January 2025

Societal Participation & Health, Amsterdam Public Health, Amsterdam, The Netherlands.

Background: Day surgery is being increasingly implemented across Europe, driven in part by capacity problems. Patients recovering at home could benefit from tools tailored to their new care setting to effectively manage their convalescence. The mHealth application ikHerstel is one such tool, but although it administers its functions in the home, its implementation hinges on health care professionals within the hospital.

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Introduction: Maternity care professionals need to guide women through an increasing number of decision-making processes during pregnancy. Professionals tend to focus more on providing information than on decision support. According to the self-determination theory (SDT), professionals could help women make their own choices by fulfilling their three basic psychological needs: autonomy, competence, and relatedness through autonomy-supportive interactions.

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Few immortalized cardiac microvascular endothelial cell (CMEC) lines are available, particularly mouse lines. We purchased the CLU510 mCMEC line (Cedarlane), isolated by fluorescence-activated cell sorting for CD31 and VE-cadherin. The cell line has been used in previous studies, although none report CD31 or VE-cadherin expression.

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: To study the influence of diabetes mellitus (DM) and metformin treatment on aneurysm sac remodeling after endovascular aneurysm repair (EVAR). : A retrospective single-center cohort analysis was conducted on consecutive patients who underwent elective EVAR for an infrarenal abdominal aortic aneurysm (AAA) between January 2011 and December 2021. Differences between study groups were analyzed and Kaplan-Meier analysis were employed to describe overall and reintervention-free survival.

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Background: Dutch adolescents predominantly purchase unhealthy snacks in supermarkets, which negatively influence their health. The aim of this study was to investigate the short- and longer-term effects of a nutrition peer-education intervention in supermarkets on food purchases and determinants of food purchase behaviour among adolescents of different education levels.

Methods: We performed a quasi-experimental study in three supermarkets (two intervention and one comparison school) in Amsterdam, the Netherlands.

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Purpose: Multidisciplinary care pathways for falls prevention, which include falls risk stratification, multifactorial falls risk assessment, and management of multidomain interventions, can reduce falls in older adults. However, efficient multidisciplinary falls prevention care is challenging due to issues such as poor communication and role allocation. This study aimed to identify and visualize the multidisciplinary care needs of primary care-based health care professionals (HCPs) for falls prevention in the Netherlands using the novel co-design approach of journey mapping.

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Rationale & Objective: Spousal caregivers participate extensively in the care of patients with kidney failure. Although previous studies suggested that these caregivers experience a high burden, a comprehensive understanding of the determinants of this burden and strategies to alleviate it are needed. Therefore, this study sought to explore the contributing and alleviating determinants of burden in spousal caregivers of patients with kidney failure.

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Objective: 17β-Hydroxysteroid dehydrogenase 3 deficiency (17β-HSDD) and 5α-reductase type 2 deficiency (5α-RD) are rare 46,XY differences of sex development (DSD). This study aims to enlarge the limited knowledge on long-term gonadal function and gonadal pathology in these conditions.

Design: Retrospective multicentre cohort study.

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Objective: two new cases of temporal bone squamous cell carcinoma (TBSCC) with a bilateral occurrence are presented. Furthermore, a review of the literature was performed and the yearly incidence was calculated.

Methods: A systematic review of the literature was conducted using PRISMA guidelines.

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: The barrier properties of the human small intestine play a crucial role in regulating digestion, nutrient absorption and drug metabolism. Current in vitro organotypic models consist only of an epithelium, which does not take into account the possible role of stromal cells such as fibroblasts or the extracellular matrix (ECM) which could contribute to epithelial barrier properties. Therefore, the aim of this study was to determine whether these stromal cells or ECM were beneficial or detrimental to barrier function when incorporated into an organotypic human small intestine model.

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Importance: Metformin and glyburide monotherapy are used as alternatives to insulin in managing gestational diabetes. Whether a sequential strategy of these oral agents results in noninferior perinatal outcomes compared with insulin alone is unknown.

Objective: To test whether a treatment strategy of oral glucose-lowering agents is noninferior to insulin for prevention of large-for-gestational-age infants.

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Article Synopsis
  • Patients with rare cancers experience longer diagnostic delays and fewer treatment options, which can negatively affect their employment status both before and after diagnosis.
  • A study comparing 16,203 rare cancer patients to 23,295 common cancer patients found that those with rare cancers were more likely to become work-disabled before diagnosis and more likely to pursue self-employment after diagnosis.
  • Younger patients and those on temporary contracts were more likely to transition to self-employment, highlighting the need for improved awareness and care for rare cancer to minimize negative work outcomes.
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Paths to Autonomous Motivation and Well-being: Understanding the Contribution of Basic Psychological Needs Satisfaction in Health Professions Students.

Med Sci Educ

December 2024

School of Health Professions Education, Faculty of Health, Medicine and Life Sciences, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands.

Article Synopsis
  • Undergraduate students in Health Professions face motivation and well-being challenges, and the study explores how satisfying their basic psychological needs impacts their levels of autonomous motivation and overall well-being.
  • Flowing from a survey of 202 students, the results indicate that satisfaction of autonomy boosts autonomous motivation, while satisfaction of relatedness and competence contributes equally to overall well-being.
  • The findings suggest that creating an autonomy-supportive and need-satisfying learning environment can improve motivation and well-being, guiding educators to enhance student experiences in HP programs.
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Endothelial-Ercc1 DNA repair deficiency provokes blood-brain barrier dysfunction.

Cell Death Dis

January 2025

Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.

Aging of the brain vasculature plays a key role in the development of neurovascular and neurodegenerative diseases, thereby contributing to cognitive impairment. Among other factors, DNA damage strongly promotes cellular aging, however, the role of genomic instability in brain endothelial cells (EC) and its potential effect on brain homeostasis is still largely unclear. We here investigated how endothelial aging impacts blood-brain barrier (BBB) function by using excision repair cross complementation group 1 (ERCC1)-deficient human brain ECs and an EC-specific Ercc1 knock out (EC-KO) mouse model.

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Vascularized human brain organoids: current possibilities and prospects.

Trends Biotechnol

January 2025

Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands. Electronic address:

Human brain organoids (hBOs) are in vitro, 3D, self-organizing brain tissue structures increasingly used for modeling brain development and disease. Although they traditionally lack vasculature, recent bioengineering developments enable their vascularization, which partly recapitulates neurodevelopmental processes such as neural tube angiogenesis, formation of neurovascular unit (NVU)-like structures, and early barriergenesis. Although vascularized hBOs (vhBOs) are already used to model (defects in) neurovascular development, vascularization efficiency and other outcomes differ substantially between vascularization protocols and overall shortcomings should be considered.

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Background: Delinquent behavior in adolescence is a prevalent issue, often associated with difficulties across multiple life domains, which in turn perpetuates negative life outcomes. While current treatment programs show partial success in improving behavioral changes and reducing recidivism, comprehensive conclusions regarding the overall efficacy of these interventions have yet to be established. In forensic outpatient settings, the discrepancy between adolescents' limited emotional awareness and the predominant emphasis on cognitive reflection, combined with low treatment adherence, may be factors that undermine treatment efficacy.

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