53 results match your criteria: "University Medical Centre Groningen and University of Groningen[Affiliation]"

Quantum Sensing Unravels Antioxidant Efficacy Within PCL/Matrigel Skin Equivalents.

Small

December 2024

Polymer Science, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen, 9747 AG, The Netherlands.

Skin equivalents (SE) that recapitulate biological and mechanical characteristics of the native tissue are promising platforms for assessing cosmetics and studying fundamental biological processes. Methods to achieve SEs with well-organized structure, and ideal biological and mechanical properties are limited. Here, the combination of melt electrowritten PCL scaffolds and cell-laden Matrigel to fabricate SE is described.

View Article and Find Full Text PDF

Aims: Carnosinase (CN1) polymorphisms have been linked to diabetic kidney disease (DKD), as CN1 degrades dipeptides which scavenge oxidative metabolites and prevent the formation of advanced glycation end-products. In this work, we studied the association between serum CN1, the systemic redox status and long-term renal outcome in type 1 diabetes.

Methods: Serum CN1 was measured in a prospective type 1 diabetes cohort ( = 218) with a 16-year follow-up.

View Article and Find Full Text PDF

Aims: Use of infliximab (IFX) has improved outcomes in children with inflammatory bowel disease (IBD). However, a proportion of patients does not respond to IFX or loses response over time. Population pharmacokinetic (PopPK) modelling is a promising approach for IFX dose optimization, but with the increasing number of PopPK models in literature, model evaluation is essential.

View Article and Find Full Text PDF

Two-photon microscopy for microrobotics: Visualization of micro-agents below fixed tissue.

PLoS One

August 2023

Surgical Robotics Laboratory, Department of Biomechanical Engineering, University of Twente, Enschede, The Netherlands.

Optical microscopy is frequently used to visualize microrobotic agents (i.e., micro-agents) and physical surroundings with a relatively high spatio-temporal resolution.

View Article and Find Full Text PDF

Background: The Boileau classification distinguishes three surgical neck fracture patterns: types A, B, and C. However, the reproducibility of this classification on plain radiographs is unclear. Therefore, we questioned what the interobserver agreement and accuracy of displaced surgical neck fracture patterns is categorized according to the modified Boileau classification.

View Article and Find Full Text PDF

Genetic studies have identified associations of carnosinase 1 (CN1) polymorphisms with diabetic kidney disease (DKD). However, CN1 levels and activities have not been assessed as diagnostic or prognostic markers of DKD in cohorts of patients with type 2 diabetes (T2D). We established high-throughput, automated CN1 activity and concentration assays using robotic systems.

View Article and Find Full Text PDF

Dysregulation in glomerular hemodynamics favors hyperfiltration in diabetic kidney disease (DKD). Although carnosine supplementation ameliorates features of DKD, its effect on glomerular vasoregulation is not known. We assessed the influence of carnosine and carnosinase-1 (CN1) on afferent glomerular arteriole vasodilation and its association with glomerular size, hypertrophy, and nephrin expression in diabetic BTBR mice.

View Article and Find Full Text PDF
Article Synopsis
  • - Elderly kidney transplant recipients (KTRs) face significant COVID-19-related risks, with low vaccination responses that underscore the need for improved strategies.
  • - The OPTIMIZE trial tested two immunosuppressive regimens: one standard and one adapted with everolimus, finding that KTRs on the everolimus regimen had significantly higher seroconversion rates after COVID-19 vaccinations.
  • - Results indicate that an adjusted regimen without mycophenolate mofetil and reduced CNI dosage enhances vaccine response in elderly KTRs, suggesting a need for further studies in broader transplant populations.
View Article and Find Full Text PDF

Background: Late effects of cisplatin-based chemotherapy in testicular cancer survivors (TCS) include cardiovascular morbidity, but little data is available beyond 20 years. The objective was to assess vascular damage in very long-term TCS.

Methods: TCS (treated with chemotherapy or orchiectomy only) and age-matched healthy controls were invited.

View Article and Find Full Text PDF

Objective: To assess the influence of serum carnosinase (CN1) on the course of diabetic kidney disease (DKD).

Methods: hCN1 transgenic (TG) mice were generated in a BTBR genetic background to allow the spontaneous development of DKD in the presence of serum carnosinase. The influence of serum CN1 expression on obesity, hyperglycemia, and renal impairment was assessed.

View Article and Find Full Text PDF

Background: Since evidence-based dietary guidelines are lacking for IBD patients, they tend to follow "unguided" dietary habits; potentially leading to nutritional deficiencies and detrimental effects on disease course. Therefore, we compared dietary intake of IBD patients with controls.

Methods: Dietary intake of macronutrients and 25 food groups of 493 patients (207 UC, 286 CD), and 1291 controls was obtained via a food frequency questionnaire.

View Article and Find Full Text PDF

Off-label prescriptions of drugs used for the treatment of Crohn's disease or ulcerative colitis.

Aliment Pharmacol Ther

May 2019

Department of Gastroenterology and Hepatology, Amsterdam UMC, Vrije Universiteit Amsterdam, AG&M research institute, Amsterdam, The Netherlands.

Background: Off-label prescribing is encountered across various fields of medicine and creates alternative treatment options, but is associated with unknown safety risks. The use of off-label drugs for the treatment of patients with inflammatory bowel diseases (IBD) has not been characterised before.

Aim: To assess the proportion and characteristics of off-label prescribing for IBD in tertiary care centres in the Netherlands.

View Article and Find Full Text PDF

This study aimed to establish the number of expression-based molecular subclasses in cutaneous melanoma, identify their dominant biological pathways and evaluate their clinical relevance. To this end, consensus clustering was performed separately on two independent datasets (n = 405 and n = 473) composed of publicly available cutaneous melanoma expression profiles from previous studies. Four expression-based molecular subclasses were identified and labelled 'Oxidative phosphorylation', 'Oestrogen response/p53-pathway', 'Immune' and 'Cell cycle', based on their dominantly expressed biological pathways determined by gene set enrichment analysis.

View Article and Find Full Text PDF

Background: Patients in need of long-term renal replacement therapy (RRT) are known to be at increased risk of herpes zoster, occurring when the latently present varicella-zoster virus (VZV) reactivates. In this study we investigated immunity to VZV in patients receiving RRT, with the aim of better understanding the mechanism behind the increased risk.

Methods: Patients treated for at least three months with hemodialysis or peritoneal dialysis, and matched healthy controls (HC) were included.

View Article and Find Full Text PDF

Background And Purpose: In randomized trials magnesium supplementation did not improve clinical outcome after aneurysmal subarachnoid haemorrhage (aSAH) on handicap scales. After aSAH, many patients have cognitive problems that may not translate into handicap. The effect of magnesium on cognitive outcome after aSAH was studied.

View Article and Find Full Text PDF

Parental DNA Methylation States Are Associated with Heterosis in Epigenetic Hybrids.

Plant Physiol

February 2018

Population Epigenetics and Epigenomics, Department of Plant Sciences, Technical University of Munich, 85354 Freising, Germany

Despite the importance and wide exploitation of heterosis in commercial crop breeding, the molecular mechanisms behind this phenomenon are not completely understood. Recent studies have implicated changes in DNA methylation and small RNAs in hybrid performance; however, it remains unclear whether epigenetic changes are a cause or a consequence of heterosis. Here, we analyze a large panel of over 500 Arabidopsis () epigenetic hybrid plants (epiHybrids), which we derived from near-isogenic but epigenetically divergent parents.

View Article and Find Full Text PDF

A risk score including body mass index, glycated haemoglobin and triglycerides predicts future glycaemic control in people with type 2 diabetes.

Diabetes Obes Metab

March 2018

Department of Health Services Research, Care and Public Health Research Institute, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.

Aim: To identify, predict and validate distinct glycaemic trajectories among patients with newly diagnosed type 2 diabetes treated in primary care, as a first step towards more effective patient-centred care.

Methods: We conducted a retrospective study in two cohorts, using routinely collected individual patient data from primary care practices obtained from two large Dutch diabetes patient registries. Participants included adult patients newly diagnosed with type 2 diabetes between January 2006 and December 2014 (development cohort, n = 10 528; validation cohort, n = 3777).

View Article and Find Full Text PDF

Background: Fast and reliable diagnostics are important in febrile patients admitted to the emergency department. Current urine diagnostics are fast but moderately reliable or reliable but time consuming. Flow cytometry (FC) is a new promising technique in the diagnostics of complicated urinary tract infections by counting bacteria in urine samples.

View Article and Find Full Text PDF

Accurate and fast urinalysis in febrile patients by flow cytometry.

Infect Dis (Lond)

May 2017

a Department of Internal Medicine/Infectious diseases , Isala , Zwolle , The Netherlands.

Background: The urine culture is worldwide accepted as the gold standard in diagnosing urinary tract infections, but is time consuming and costly, other methods are fast but moderately reliable. We investigated whether counting the number of bacteria by flow cytometry could be a fast and accurate method to analyze urine samples in febrile patients at the emergency department (ED).

Methods: Urine samples were obtained from 140 febrile patients at the ED.

View Article and Find Full Text PDF

Orthostatic hypotension does not predict recurrent falling in a nursing home population.

Arch Gerontol Geriatr

July 2017

Langerhans Medical Research Group, P.O. Box 10400, 8000 G.K. Zwolle, The Netherlands. Electronic address:

Objective: Most studies regard orthostatic hypotension (OH) as a causal factor for falls. However, the evidence is lacking for this assumption. We aimed to investigate the relationship between orthostatic hypotension and fall incidents in nursing home residents.

View Article and Find Full Text PDF

Heterozygous Loss-of-Function Mutations in DLL4 Cause Adams-Oliver Syndrome.

Am J Hum Genet

September 2015

Center of Medical Genetics, Faculty of Medicine and Health Sciences, University of Antwerp and Antwerp University Hospital, Antwerp, 2650, Belgium. Electronic address:

Adams-Oliver syndrome (AOS) is a rare developmental disorder characterized by the presence of aplasia cutis congenita (ACC) of the scalp vertex and terminal limb-reduction defects. Cardiovascular anomalies are also frequently observed. Mutations in five genes have been identified as a cause for AOS prior to this report.

View Article and Find Full Text PDF

Objective: Diagnosing chronic heart failure (CHF) is important, since subsequent treatments by medication and cardiac intervention improve quality of life. However, accurate CHF diagnosis in the elderly residing in care homes (residents) is hampered by suboptimal diagnostic tools, co-morbidity and physician's unawareness of CHF. We sought to estimate the CHF prevalence among Aruban residents.

View Article and Find Full Text PDF

Polymorphisms near TBX5 and GDF7 are associated with increased risk for Barrett's esophagus.

Gastroenterology

February 2015

University Hospitals Coventry & Warwickshire NHS Trust, Warwickshire, England; Warwick Medical School, University of Warwick, Warwickshire, England. Electronic address:

Background & Aims: Barrett's esophagus (BE) increases the risk of esophageal adenocarcinoma (EAC). We found the risk to be BE has been associated with single nucleotide polymorphisms (SNPs) on chromosome 6p21 (within the HLA region) and on 16q23, where the closest protein-coding gene is FOXF1. Subsequently, the Barrett's and Esophageal Adenocarcinoma Consortium (BEACON) identified risk loci for BE and esophageal adenocarcinoma near CRTC1 and BARX1, and within 100 kb of FOXP1.

View Article and Find Full Text PDF

Lymphatic vessels (LVs) are involved in a number of physiological and pathophysiological processes such as fluid homoeostasis, immune surveillance, and resolution of inflammation and wound healing. Lymphangiogenesis, the outgrowth of existing LVs and the formation of new ones, has received increasing attention over the past decade on account of its prominence in organ physiology and pathology, which has been enabled by the development of specific tools to study lymph vessel functions. Several studies have been devoted to renal lymphatic vasculature and lymphangiogenesis in kidney diseases, such as chronic renal transplant dysfunction, primary renal fibrotic disorders, proteinuria, diabetic nephropathy and renal inflammation.

View Article and Find Full Text PDF