45,073 results match your criteria: "University Medical Center Groningen; g.m.van.dam@umcg.nl.[Affiliation]"

Background: Because the occurrence of metabolic syndrome (MetS) might contribute to childhood cancer survivor's excess risk of cardiovascular disease, the authors assessed the prevalence and determinants of MetS in the Dutch Childhood Cancer Survivor Study (DCCSS-LATER2) cohort.

Methods: In total, 2338 adult childhood cancer survivors (CCS) were cross-sectionally assessed for the prevalence of MetS, using the Lifelines cohort (N = 132,226 adults without a history of cancer) as references. The prevalence of MetS was clinically assessed using existing classifications, as well as an alternative method using dual-energy x-ray absorptiometry fat% instead of waist circumference to define abdominal adiposity.

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Transitioning to residency: a qualitative study exploring residents' perspectives on strategies for adapting to residency.

BMC Med Educ

January 2025

Center for Education Development and Research in Health Professions (CEDAR), Lifelong Learning, Education and Assessment Research Network (LEARN), University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.

Background: The transition to residency (TTR) goes along with new opportunities for learning and development, which can also be challenging, despite the availability of preparation courses designed to ease the transition process. Although the TTR highly depends on the organization, individual combined with organizational strategies that advance adaptation are rarely investigated. This study explores residents' strategies and experiences with organizational strategies to help them adapt to residency.

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Extracellular vesicles (EVs) are associated with intercellular communications, immune responses, viral pathogenicity, cardiovascular diseases, neurological disorders, and cancer progression. EVs deliver proteins, metabolites, and nucleic acids into recipient cells to effectively alter their physiological and biological response. During their transportation from the donor to the recipient cell EVs face differential ionic concentrations, which can be detrimental to their integrity and impact their cargo content.

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Bladder cancer is the 10th most common and 13th most deadly cancer worldwide, with urothelial carcinomas being the most common type. Distinguishing between non-muscle-invasive bladder cancer (NMIBC) and muscle-invasive bladder cancer (MIBC) is essential due to significant differences in management and prognosis. MRI may play an important diagnostic role in this setting.

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The impact of common and rare genetic variants on bradyarrhythmia development.

Nat Genet

January 2025

Telemachus and Irene Demoulas Family Foundation Center for Cardiac Arrhythmias, Massachusetts General Hospital, Boston, MA, USA.

To broaden our understanding of bradyarrhythmias and conduction disease, we performed common variant genome-wide association analyses in up to 1.3 million individuals and rare variant burden testing in 460,000 individuals for sinus node dysfunction (SND), distal conduction disease (DCD) and pacemaker (PM) implantation. We identified 13, 31 and 21 common variant loci for SND, DCD and PM, respectively.

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Next Generation Sequencing-based subtyping and interim- and end of treatment positron emission tomography (i/eot-PET) monitoring have high potential for upfront and on-treatment risk assessment of diffuse large B-cell lymphoma patients. We performed Dana Farber Cancer Institute (DFCI) and LymphGen genetic subtyping for the HOVON84 (n = 208, EudraCT-2006-005174-42) and PETAL (n = 204, EudraCT-2006-001641-33) trials retrospectively combined with DFCI genetic data (n = 304). For all R-CHOP treated patients (n = 592), C5/MCD- and C2/A53-subtypes show significantly worse outcome independent of the international prognostic index.

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Purpose: In patients with chronic obstructive pulmonary disease (COPD) treated with chronic non-invasive ventilation (NIV), the relation between improvements in nocturnal transcutaneous partial pressure of CO (PtcCO) and daytime arterial partial pressure of CO (PaCO) remains uncertain. Also, to what extent improvements in nocturnal PtcCO result in better health-related quality of life (HRQL), exercise capacity, lung function and survival has not been investigated.

Patients And Methods: Patients with COPD who were initiated on chronic NIV were prospectively followed for 6 months.

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Objective: Tirzepatide, a long-acting, glucose-dependent insulinotropic polypeptide/glucagon-like peptide 1 receptor agonist, reduced urine albumin-to-creatinine ratio (UACR) and estimated glomerular filtration rate (eGFR) decline in people with type 2 diabetes and high cardiovascular risk in the SURPASS-4 trial. To examine the generalizability of these findings, we assessed change from baseline in UACR for tirzepatide (5, 10, and 15 mg) compared with active and placebo treatment in a broad population from the SURPASS-1-5 trials.

Research Design And Methods: This post hoc analysis examined data from the overall pooled SURPASS-1-5 population and subgroups defined by baseline UACR ≥30 mg/g.

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Article Synopsis
  • The study examines trends and epidemiology of pediatric burns in Dutch burn centers from 2009 to 2022, highlighting the need for effective prevention strategies and resource allocation.
  • The analysis revealed a gradual increase in pediatric burn admissions, with a temporary decrease during the COVID-19 pandemic; 77% of patients were overnight admissions.
  • Young children (ages 0-3) were the most affected group, and a shift toward shorter hospital stays and increased day admissions was noted, especially during the pandemic.
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Article Synopsis
  • Metagenomics has uncovered a vast diversity of phages in the human gut, but detailed studies on these phages are limited.
  • A new bioinformatics method was developed to identify prophages in cultured gut bacteria, leading to the discovery of 15 candidate prophages, with five validated as active.
  • The study also found that some active phages had unique genetic features and varied host ranges, while noting a difference in prevalence among inflammatory bowel disease patients compared to healthy individuals, emphasizing the potential of studying prophage dynamics in understanding microbial ecology.
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Systolic Blood Pressure and Pulse Pressure in Heart Failure: Pooled Participant-Level Analysis of 4 Trials.

J Am Coll Cardiol

November 2024

Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA. Electronic address:

Background: Hypertension is common in patients with heart failure with mildly reduced or preserved ejection fraction (HFmrEF/HFpEF), and current guidelines recommend treating systolic blood pressure (SBP) to a target <130 mm Hg. However, data supporting treatment to this target are limited. Additionally, pulse pressure (PP), a marker of aortic stiffness, has been associated with increased risk of cardiovascular events, but its prognostic impact in HFpEF has not been extensively studied.

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[Genomic Characterization of SARS-CoV-2 Isolates Obtained from Antalya, Türkiye].

Mikrobiyol Bul

October 2024

The University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Division of Clinical Virology, Groningen, Netherlands.

As the number of coronavirus diseases-2019 (COVID-19) cases have decreased and measures have started to be implemented at an individual level rather than in the form of social restrictions, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) still maintains its importance and has already taken its place in the spectrum of agents investigated in multiplex molecular test panels for respiratory tract infections in routine diagnostic use. In this study, we aimed to present mutation analysis and clade distribution of whole genome sequences from randomly selected samples that tested positive with SARS-CoV-2 specific real-time reverse transcription polymerase chain reaction (rRT-PCR) test at different periods of the pandemic in our laboratory with a commercial easy-to-use kit designed for next-generation sequencing systems. A total of 84 nasopharyngeal/oropharyngeal swab samples of COVID-19 suspected patients which were sent for routine diagnosis to the medical microbiology laboratory and detected as SARSCoV-2 RNA positive with rRT-PCR were randomly selected from different periods for sequence analysis.

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Gene expression profiling in PBMCs for acute rejection in lung transplant recipients reveals myeloid responses.

Front Transplant

December 2024

Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.

The acute rejection (AR) diagnosis depends on transbronchial biopsy, which is semi-invasive and not easily performed Our study used the Nanostring gene expression technology on PBMCs obtained from lung transplant recipients (LTRs) to search for biomarkers. We identified distinct differential gene profiles between patients with stable status (STA) and AR. Subsequently, we independently evaluated monocyte compositions in PBMCs using flow cytometry and assessed the levels of 7 chemokines in serum using Luminex.

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Article Synopsis
  • Amniotic epithelial stem cells (AEC) have regenerative potential, particularly through their conditioned medium (AEC-CM), which shows immunomodulatory and regenerative effects.
  • A novel hydrogel made from hyaluronic acid and polyethylene glycol was developed to encapsulate AEC-CM, with features like fast cross-linking and sustained growth factor release over 14 days.
  • Studies demonstrate that the encapsulated AEC-CM significantly enhances the suppression of peripheral blood mononuclear cells and promotes a shift towards the beneficial M2 macrophage phenotype, suggesting its viability as an immunomodulatory treatment for tissue regeneration.
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Objective: We aimed to provide an evidence-supported approach to diagnose, monitor, and treat children with inflammatory bowel disease (IBD) and primary sclerosing cholangitis (PSC).

Methods: The core group formulated seven PICO-structured clinical questions. A systematic literature search from inception to December 2022 was conducted by a medical librarian using MEDLINE and EMBASE.

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Nano-Armed Limosilactobacillus reuteri for Enhanced Photo-Immunotherapy and Microbiota Tryptophan Metabolism against Colorectal Cancer.

Adv Sci (Weinh)

December 2024

Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology, Chengdu, 610054, China.

Despite being a groundbreaking approach to treating colorectal cancer (CRC), the efficacy of immunotherapy is significantly compromised by the immunosuppressive tumor microenvironment and dysbiotic intestinal microbiota. Here, leveraging the superior carrying capacity and innate immunity-stimulating property of living bacteria, a nanomedicine-engineered bacterium, LR-S-CD/CpG@LNP, with optical responsiveness, immune-stimulating activity, and the ability to regulate microbiota metabolome is developed. Immunoadjuvant (CpG) and carbon dot (CD) co-loaded plant lipid nanoparticles (CD/CpG@LNPs) are constructed and conjugated to the surface of Limosilactobacillus reuteri (LR) via reactive oxygen species (ROS)-responsive linkers.

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Real-World Evidence of the Prevalence of Driver Mutations in Anorectal Melanoma.

Mol Diagn Ther

December 2024

Comprehensive Cancer Center, University of Maastricht, Maastricht University Medical Center, P. Debyelaan 25, 6229 HX, Maastricht, The Netherlands.

Introduction: Anorectal melanoma is a rare neoplasm with an aggressive behavior and poor prognosis. Recently, recurrent gene mutations related to anorectal melanoma have been identified in a small series of cases, and this holds promise for targeted therapies, analogous to cutaneous melanoma. The purpose of this study was to analyze testing rates and prevalence of mutations in anorectal melanoma in the Dutch population.

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Normal Anal Sensibility in Patients Born With Anorectal Malformations.

Neurogastroenterol Motil

December 2024

Department of Surgery, Anorectal Physiology Laboratory, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.

Normal anal sensibility can be present in ARM patients diagnosed with all types of ARM after they have been treated with corrective surgery. Anal sensibility was better in those with a functional IAS. This means that the IAS, present in the distal end of the fistula, should be spared as much as possible to preserve anal sensibility.

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RICTOR variants are associated with neurodevelopmental disorders.

Eur J Hum Genet

December 2024

Laboratoire d'ImmunoRhumatologie Moléculaire, plateforme GENOMAX, INSERM UMR_S 1109, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Institut Thématique Interdisciplinaire TRANSPLANTEX NG, Université de Strasbourg, 4 rue Kirschleger, 67085, Strasbourg, France.

RICTOR is a key component of the mTORC2 signaling complex which is involved in the regulation of cell growth, proliferation and survival. RICTOR is highly expressed in neurons and is necessary for brain development. Here, we report eight unrelated patients presenting with intellectual disability and/or development delay and carrying variants in the RICTOR gene.

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Immune checkpoint inhibitor (ICI) treatment has proven successful for advanced melanoma, but is associated with potentially severe toxicity and high costs. Accurate biomarkers for response are lacking. The present work is the first to investigate the value of deep learning on CT imaging of metastatic lesions for predicting ICI treatment outcomes in advanced melanoma.

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Neurodegeneration in Huntington's disease (HD) is accompanied by the aggregation of fragments of the mutant huntingtin protein, a biomarker of disease progression. A particular pathogenic role has been attributed to the aggregation-prone huntingtin exon 1 (HTTex1), generated by aberrant splicing or proteolysis, and containing the expanded polyglutamine (polyQ) segment. Unlike amyloid fibrils from Parkinson's and Alzheimer's diseases, the atomic-level structure of HTTex1 fibrils has remained unknown, limiting diagnostic and treatment efforts.

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Non-smoking and Non-drinking Oral Cancer Patients Are at Higher Risk of Second Primary Tumours.

Oral Dis

December 2024

Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

Objectives: This study aimed to explore differences in demographics, tumour characteristics and outcomes in oral squamous cell carcinoma (OSCC) patients with a history of non-smoking, non-drinking (NSND) versus smoking and/or drinking (SD).

Materials And Methods: Newly diagnosed OSCC patients undergoing curative surgical treatment were prospectively included in OncoLifeS, a data biobank. Cox regression analysis was performed yielding hazard ratios (HRs) and 95% confidence intervals (95%CIs).

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Perfusion Pressures and Weight Loss During Normothermic Machine Perfusion of Human Donor Livers.

Artif Organs

December 2024

Department of Surgery, Section of Hepatobiliary Surgery and Liver Transplantation, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.

Background: Normothermic machine perfusion (NMP) is increasingly used to preserve and assess donor livers prior to transplantation. Due to its success, it is expected that more centers will start using this technology. However, NMP may also cause adverse effects.

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