Publications by authors named "Graaf M"

Biologics approved and in development for atopic dermatitis offer life-changing clinical efficacy with a relatively banal long-term safety profile requiring no laboratory monitoring. Biologic therapies also have their drawbacks, including high payor cost and the need to be administered as every other week subcutaneous injections. Addressing these concerns, studies of longer dosing intervals have been performed in the formal clinical trial setting and during real-world clinical care.

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Introduction And Objectives: Tralokinumab-a biological that specifically targets interleukin-13-is one of the newer advanced systemic treatments for patients with moderate-to-severe atopic dermatitis (AD). Although safety and efficacy have been shown in phase-III clinical trials, daily practice data are needed. Therefore, the aim of this study was to evaluate 28-week safety and effectiveness, serum proteins and total IgE levels in adult AD patients treated with tralokinumab in daily practice.

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BackgroundWastewater surveillance may support early and comprehensive detection of infectious diseases' community transmission, particularly in settings where other health surveillance systems provide biased or limited information. Amid the SARS-CoV-2 pandemic, deploying passive samplers to monitor targeted populations gained importance. Evaluation of the added public health value of this approach in the field can support its broader adoption.

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Objective: The rupture of vulnerable plaques in the carotid artery is a leading cause of strokes. While magnetic resonance imaging (MRI) is the standard for quantifying plaque composition, its high costs and lengthy procedure times limit large-scale use. Compound ultrasound strain imaging (CUSI) ultrasound offers a non-invasively alternative by assessing tissue deformation/strain within the arterial wall.

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The integration of next-generation sequencing into clinical diagnostics and surveillance initiatives is impeded by the lack of data analysis pipelines that align with privacy legislation and laboratory certification protocols. To address these challenges, we developed Jovian, an open-source, virus-focused, metagenomic analysis workflow for Illumina data. Jovian generates scaffolds enriched with pertinent annotations, including taxonomic classification, combined with metrics needed for quality assessment (coverage depth, average GC content, localization of open reading frames, minority single nucleotide polymorphisms), and incorporates host and disease metadata.

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  • - The study evaluates the effectiveness and longevity of treatments (dupilumab, methotrexate, and cyclosporine A) for pediatric patients aged 2-17 with severe atopic dermatitis across five centers in the Netherlands from 2013-2023.
  • - Out of 502 treatment episodes analyzed, dupilumab showed the highest drug survival rates over three years (84.1% at one year, 72.3% at two, and 62.0% at three), compared to significantly lower rates for methotrexate and cyclosporine A.
  • - The main reason for discontinuing treatment was ineffectiveness, especially noted with cyclosporine A, while factors like treatment
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  • There is currently no licensed treatment for chronic norovirus infections, but immunoglobulin therapy shows promise despite varied results and limited understanding of the link between norovirus genetic diversity and treatment success.
  • Researchers studied norovirus diversity in 20 immunocompromised patients using advanced genetic sequencing techniques, revealing rapid evolution of the virus, particularly in a crucial gene region (VP1) associated with immune response.
  • Notably, within these patients, the virus produced diverse subpopulations that often resisted antibodies, leading to treatment failures, and suggested that low immunity levels in immunocompromised hosts significantly affect antiviral effectiveness.
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  • - This study explored adult patients' treatment preferences for shoulder pain in primary care, using a discrete choice experiment where participants compared different treatment options.
  • - Three main groups were identified: one that mainly opted out unless treatments were highly effective, another that preferred treatments without injections, and a third group that also preferred to opt out and avoided treatment.
  • - The likelihood of joining each group was influenced by past experiences with injections or physiotherapy, indicating that these previous treatments affected their current preferences.
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We report an increase in GII.17 norovirus outbreaks and sporadic infections of acute gastroenteritis in Austria, Germany, France, Ireland, the Netherlands, England and the United States during the 2023/24 season. A decrease in GII.

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  • The study explores the link between knee muscle strength, postural balance, and mobility in older women, aiming to identify fall risks and improve prevention programs.
  • Results showed that higher knee strength correlates with better functional mobility but only weakly relates to semi-static balance, indicating different coordination requirements for each activity.
  • Overall, findings suggest that improving knee strength can enhance mobility in elderly women, while maintaining balance may rely on different neuromuscular controls.
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  • Immune checkpoint inhibition (ICI) combined with chemotherapy is the standard treatment for stage II-III triple-negative breast cancer, but the effectiveness of ICI alone remains unclear.
  • The adaptive BELLINI trial found that short-term ICI treatments led to immune activation in a significant portion of patients, correlating immune response with tumor-infiltrating lymphocytes.
  • A new cohort is being studied with patients who have high levels of these lymphocytes; early results show a notable rate of major and complete pathological responses post-treatment, suggesting that neoadjuvant ICI could be a promising approach without chemotherapy.
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Sewage metagenomics has risen to prominence in urban population surveillance of pathogens and antimicrobial resistance (AMR). Unknown species with similarity to known genomes cause database bias in reference-based metagenomics. To improve surveillance, we seek to recover sewage genomes and develop a quantification and correlation workflow for these genomes and AMR over time.

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Microphysiological systems (MPSs) are cellular models that replicate aspects of organ and tissue functions in vitro. In contrast with conventional cell cultures, MPSs often provide physiological mechanical cues to cells, include fluid flow and can be interlinked (hence, they are often referred to as microfluidic tissue chips or organs-on-chips). Here, by means of examples of MPSs of the vascular system, intestine, brain and heart, we advocate for the development of standards that allow for comparisons of quantitative physiological features in MPSs and humans.

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Unlabelled: Metagenomic shotgun sequencing (mNGS) can serve as a generic molecular diagnostic tool. An mNGS proficiency test (PT) was performed in six European veterinary and public health laboratories to detect porcine astroviruses in fecal material and the extracted RNA. While different mNGS workflows for the generation of mNGS data were used in the different laboratories, the bioinformatic analysis was standardized using a metagenomic read classifier as well as read mapping to selected astroviral reference genomes to assess the semiquantitative representation of astrovirus species mixtures.

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Burn wounds are a major burden, with high mortality rates due to infections. is a major causative agent of burn wound infections, which can be difficult to treat because of antibiotic resistance and biofilm formation. An alternative to antibiotics is the use of bacteriophages, viruses that infect and kill bacteria.

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  • The study examines the long-term effectiveness and safety of dupilumab, a treatment for atopic dermatitis (AD), in a diverse group of patients over a period of up to 5 years.
  • Conducted in the Netherlands using the BioDay registry, the research includes 1,286 patients of different age groups receiving dupilumab between 2017 and 2022, with outcomes evaluated using various clinical measures.
  • Results show that a majority of patients maintained controlled AD symptoms, with high levels of treatment effectiveness observed over time, and factors for treatment discontinuation were also assessed.
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Aims: Pericoronary adipose tissue (PCAT) attenuation obtained by coronary computed tomography angiography (CCTA) has been associated with coronary inflammation and outcomes. Whether PCAT attenuation is predictive of major adverse cardiac events (MACE) during long-term follow-up is unknown.

Methods And Results: Symptomatic patients with coronary artery disease (CAD) who underwent CCTA were included, and clinical outcomes were evaluated.

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Background: Decision-making after local resection of T1 colorectal cancer (T1CRC) is often complex and calls for optimal information provision as well as active patient involvement.

Objective: The aim was to evaluate the perceptions of patients with T1CRC on information provision and therapeutic decision-making.

Methods: This multicenter cross-sectional study included patients who underwent endoscopic or local surgical resection as initial treatment.

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  • Atopic dermatitis (AD) is commonly linked with asthma and allergic rhinitis (AR), and while dupilumab is an effective treatment for AD in children, its impact on these related conditions hasn't been well-studied.
  • In this study, 84 pediatric patients receiving dupilumab were examined, revealing that 59.5% had asthma and 85.7% had AR at baseline, with various tests conducted to assess their health status.
  • Results showed significant improvements after one year of treatment, including decreased levels of FeNO (indicating lowered airway inflammation) and reduced aeroallergen-specific IgE levels in patients with asthma and/or AR.
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Many shark populations are in decline around the world, with severe ecological and economic consequences. Fisheries management and marine protected areas (MPAs) have both been heralded as solutions. However, the effectiveness of MPAs alone is questionable, particularly for globally threatened sharks and rays ('elasmobranchs'), with little known about how fisheries management and MPAs interact to conserve these species.

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Introduction And Purpose: Persistent musculoskeletal pain (PMP) is multifactorial and causes both societal and financial burdens. Integration of multifactorial management in patients with PMP remains challenging. A single-case experimental design was performed on three patients suffering from high impact PMP (lumbar spine, shoulder and knee) to i) assess the potential for Cognitive Functional Therapy (CFT) in interdisciplinary care, ii) describe in detail the clinical journey patients experienced during the intervention, and iii) evaluate the changes and associations in relation to the outcome measures of pain, disability, maladaptive movement behavior, subjective overall improvement, health related quality of life and work status.

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