174 results match your criteria: "Amsterdam UMC University of Amsterdam[Affiliation]"

Off-label repurposing of empagliflozin allows pathomechanism-based treatment of neutropenia/neutrophil-dysfunction in glycogen storage disease type Ib (GSDIb). From a value-based healthcare (VBHC) perspective, we here retrospectively studied patient-reported, clinical and pharmacoeconomic outcomes in 11 GSDIb individuals before and under empagliflozin at two centers (the Netherlands [NL], Austria [AT]), including a budget impact analysis, sensitivity-analysis, and systematic benefit-risk assessment. Under empagliflozin, all GSDIb individuals reported improved quality-of-life-scores.

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  • * The commentary evaluates the limited adoption of open science in behavioral addiction research and emphasizes its importance for the field.
  • * It addresses challenges to adopting open science and offers recommendations for researchers and institutions to improve the quality and transparency of research in this area.
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  • Medication nonadherence is linked to worse health outcomes, and this study examined how self-rated adherence affects blood pressure, cholesterol levels, cardiovascular events, and mortality in patients participating in the SPRINT trial.
  • Among 9,278 participants, those who rated their adherence ≤80% had significantly higher systolic blood pressure and cholesterol levels compared to those who rated their adherence >80%, indicating poorer health management.
  • Lower adherence was associated with increased rates of cardiovascular events and all-cause mortality, highlighting the importance of self-rated adherence as a tool for identifying patients at greater risk.
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Background: Correctly structured problem lists in electronic health records (EHRs) offer major benefits to patient care. Without structured lists, diagnosis information is often scatteredly documented in free text, which may contribute to errors and inefficient information retrieval. This study aims to assess whether EHRs with correctly structured problem lists result in better and faster clinical decision-making compared to non-curated problem lists.

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Background: We used data from a prospective cohort to explore 2-year trajectories of 'long COVID' (persistent symptoms after SARS-CoV-2 infection) and their association with illness perception.

Methods: RECoVERED participants (adults; prospectively enrolled following laboratory-confirmed SARS-CoV-2 infection, May 2020-June 2021) completed symptom questionnaires at months 2-12, 18 and 24, and the Brief Illness Perception Questionnaire (B-IPQ) at months 1, 6 and 12. Using group-based trajectory models (GBTM), we modelled symptoms (mean total numbers and proportion with four specific complaints), including age, sex, BMI and timing of infection as covariates.

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  • This study examines the uncertainty surrounding the ideal duration of anticoagulation therapy in cancer patients with venous thromboembolism (VTE), noting current guidelines typically suggest 3-6 months.
  • A systematic review and meta-analysis were conducted, analyzing studies on VTE recurrence after stopping anticoagulation in cancer patients who had completed at least 3 months of treatment.
  • Out of 3856 studies reviewed, 14 studies with 1922 patients were included, leading to the pooled rate of recurrent VTE being estimated, although specific results were not detailed in the provided text.
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Background And Aims: Although appendicitis is rare in young infants, the reported mortality is high. Primary aim of this systematic review was to provide updated insights in the mortality and morbidity (postoperative complications, Clavien-Dindo grades I-IV) of appendicitis in infants ≤3 months of age. Secondary aims comprised the evaluation of patient characteristics, diagnostic work-up, treatment strategies, comorbidity, and factors associated with poor outcome.

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Food or medicine? A European regulatory perspective on nutritional therapy products to treat inborn errors of metabolism.

J Inherit Metab Dis

November 2023

Medicine for Society, Platform at Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands.

Dietary or nutritional management strategies are the cornerstone of treatment for many inborn errors of metabolism (IEMs). Though a vital part of standard of care, the products prescribed for this are often not formally registered as medication. Instead, they are regulated as food or as food supplements, impacting the level of oversight as well as reimbursed policies.

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Lipoprotein(a) and carotid intima-media thickness in children with familial hypercholesterolaemia in the Netherlands: a 20-year follow-up study.

Lancet Diabetes Endocrinol

September 2023

Department of Epidemiology and Data Science, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands; Diabetes and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands. Electronic address:

Background: Elevated lipoprotein(a) and familial hypercholesterolaemia are both independent risk conditions for cardiovascular disease. Although signs of atherosclerosis can be observed in children with familial hypercholesterolaemia, it is unknown whether elevated lipoprotein(a) is an additional risk factor for atherosclerosis in these young patients. Therefore, we aimed to assess the contribution of lipoprotein(a) concentrations to arterial wall thickening (as measured by carotid intima-media thickness) in children with familial hypercholesterolaemia who were followed up into adulthood.

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  • Scientists are finding new ways to test for colorectal cancer that are easier and less invasive than traditional methods.
  • A group of experts updated the rules for how to evaluate these new tests to make sure they're effective.
  • The new tests should be compared to the existing reliable tests and go through several phases of research to ensure they're safe and useful in real-world situations.
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Human peroxisomal NAD/NADH homeostasis is regulated by two independent NAD(H) shuttle systems.

Free Radic Biol Med

September 2023

Amsterdam UMC - University of Amsterdam, Department of Clinical Chemistry, Laboratory Genetic Metabolic Diseases, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands; Amsterdam Reproduction & Development, Amsterdam, the Netherlands. Electronic address:

Reduced (NADH) and oxidized (NAD) nicotinamide adenine dinucleotides are ubiquitous hydride-donating/accepting cofactors that are essential for cellular bioenergetics. Peroxisomes are single-membrane-bounded organelles that are involved in multiple lipid metabolism pathways, including beta-oxidation of fatty acids, and which contain several NAD(H)-dependent enzymes. Although maintenance of NAD(H) homeostasis in peroxisomes is considered essential for peroxisomal beta-oxidation, little is known about the regulation thereof.

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Migraine and cardiovascular disease: what cardiologists should know.

Eur Heart J

August 2023

Department of Cardiology, Heart Center, Amsterdam UMC-Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.

Migraine is a chronic neurovascular disease with a complex, not fully understood pathophysiology with multiple causes. People with migraine suffer from recurrent moderate to severe headache attacks varying from 4 to 72 h. The prevalence of migraine is two to three times higher in women compared with men.

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The nuclear factor I/X () gene encodes a ubiquitously expressed transcription factor whose mutations lead to two allelic disorders characterized by developmental, skeletal, and neural abnormalities, namely, Malan syndrome (MAL) and Marshall-Smith syndrome (MSS). mutations associated with MAL mainly cluster in exon 2 and are cleared by nonsense-mediated decay (NMD) leading to NFIX haploinsufficiency, whereas mutations associated with MSS are clustered in exons 6-10 and escape NMD and result in the production of dominant-negative mutant NFIX proteins. Thus, different mutations have distinct consequences on expression.

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Background: Assessing Quality of Life (QoL) of persons with profound intellectual and multiple disabilities (PIMD) is challenging, yet QoL plays an important role in medical decision-making processes concerning persons with PIMD. The perspectives of parents of children with PIMD on the assessment of their QoL have not been studied.

Aim: To explore the perspectives of parents on the assessment of QoL of their children.

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This study is a simple illustration of the benefit of averaging over cohorts, rather than developing a prediction model from a single cohort. We show that models trained on data from multiple cohorts can perform significantly better in new settings than models based on the same amount of training data but from just a single cohort. Although this concept seems simple and obvious, no current prediction model development guidelines recommend such an approach.

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  • The study focused on real-life patients with severe asthma starting anti-interleukin-5 (IL5) treatment in Europe, assessing how they differ from those included in randomized controlled trials (RCTs).
  • Out of 1231 patients, only about 27% met the eligibility criteria of RCTs, with key differences in smoking history, clinical factors, and medication use noted.
  • The findings highlight that many patients who could benefit from anti-IL5 therapies may be overlooked in clinical trials, underscoring the value of studying broader patient populations in real-world settings.
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  • * Researchers analyzed urine samples from neuroblastoma patients and controls, measuring various catecholamine metabolites to assess the reliability of spot versus 24-hour urine samples.
  • * Results showed that both spot and 24-hour urine samples yielded similar diagnostic sensitivity, leading to the recommendation of using spot urine as the standard method, with a broader panel of metabolites providing better diagnostic accuracy.
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The origin of long-chain fatty acids required for de novo ether lipid/plasmalogen synthesis.

J Lipid Res

May 2023

Amsterdam UMC - University of Amsterdam, Department of Clinical Chemistry, Laboratory Genetic Metabolic Diseases, AZ Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands; Amsterdam Reproduction & Development, Amsterdam, the Netherlands. Electronic address:

Peroxisomes are single-membrane bounded organelles that in humans play a dual role in lipid metabolism, including the degradation of very long-chain fatty acids and the synthesis of ether lipids/plasmalogens. The first step in de novo ether lipid synthesis is mediated by the peroxisomal enzyme glyceronephosphate O-acyltransferase, which has a strict substrate specificity reacting only with the long-chain acyl-CoAs. The aim of this study was to determine the origin of these long-chain acyl-CoAs.

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Applying CRISPR-Cas9 Genome Editing to Study Genes Involved in Peroxisome Biogenesis or Peroxisomal Functions.

Methods Mol Biol

March 2023

Department of Clinical Chemistry, Laboratory Genetic Metabolic Diseases, Amsterdam UMC - University of Amsterdam, AZ, Amsterdam, the Netherlands.

The development and application of the CRISPR-Cas9 technology for genome editing of mammalian cells have opened up a wealth of possibilities for genetically modifying and manipulating human cells, and use in functional studies or therapeutic approaches.Here we describe the approach that we have been using successfully to generate multiple human cell lines with targeted (partial) gene deletions, i.e.

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