Publications by authors named "Jong J"

Countries with social health insurance (SHI) systems display some common defining characteristics - pluralism of actors and strong medical associations - that, in dealing with crisis times, may allow for common learnings. This paper analyses health system responses during the COVID-19 pandemic in eight countries representative of SHI systems in Europe (Austria, Belgium, France, Germany, Luxembourg, the Netherlands, Slovenia and Switzerland). Data collection and analysis builds on the methodology and content in the COVID-19 Health System Response Monitor (HSRM) up to November 2020.

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The activation of thermogenesis in adipose tissue has emerged as an important target for the development of novel anti-obesity therapies. Using multi-well isothermal microcalorimetry, we have demonstrated that mature murine brown and brite adipocytes produce quantifiable heat upon β-AR stimulation, independently of any anaerobic mechanisms. Additionally, in brite adipocytes lacking UCP1 protein, β-AR stimulation still induces heat production, albeit to a much lower extent than in their wildtype counterparts, suggesting that UCP1 is an essential component of adrenergic induced thermogenesis in murine brite adipocytes exvivo.

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Purpose: Efficacy of pulmonary vein isolation (PVI) for atrial fibrillation (AF) decreases as left atrial (LA) volume increases. However, surgical AF ablation with unknown efficacy is being performed in patients with a giant LA (GLA). We determined efficacy of thoracoscopic AF ablation in patients with compared to without a GLA.

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Background: Morbus Kawasaki is defined by unexplained fever combined with at least 4 out of 5 classic symptoms: bilateral conjunctivitis, polymorphic exanthema, strawberry tongue and red swollen lips, extremity changes and cervical lymphadenopathy. However, these symptoms do not always occur completely or simultaneously.

Case Description: An 18-year old man was admitted after an out of hospital cardiac arrest caused by an occluded aneurysmatic LAD, which was treated with a percutanious coronary intervention.

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Article Synopsis
  • The study examined differences between how (semi-)professional cyclists implement a training program and how their coach designed it, looking specifically at the cyclists' perceptions versus the coach's intentions.
  • A total of 747 training sessions from 11 cyclists were analyzed by comparing their Rating of Perceived Exertion (RPE) with what the coach planned (intended RPE).
  • Findings indicated that cyclists frequently diverged from the planned program, and even when following it, their perception of exertion varied individually, which could hinder optimal training adaptations; thus, coaches should consider individual cyclist perceptions for better training management.*
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Background: Non-alcoholic steatohepatitis (NASH) has become one of the most common liver diseases and is still without approved pharmacotherapy. Lifestyle interventions using exercise and diet change remain the current treatment of choice and even a small weight loss (5-7%) can already have a beneficial effect on NASH. However, the underlying molecular mechanisms of exercise and diet interventions remain largely elusive, and it is unclear whether they exert their health effects via similar or different pathways.

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We utilized forebrain organoids generated from induced pluripotent stem cells of patients with a syndromic form of Autism Spectrum Disorder (ASD) with a homozygous protein-truncating mutation in CNTNAP2, to study its effects on embryonic cortical development. Patients with this mutation present with clinical characteristics of brain overgrowth. Patient-derived forebrain organoids displayed an increase in volume and total cell number that is driven by increased neural progenitor proliferation.

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Article Synopsis
  • The study investigates hyperthermic intravesical chemotherapy (HIVEC) as a bladder-sparing treatment for patients with Bacillus Calmette-Guérin (BCG)-unresponsive non-muscle invasive bladder cancer (NMIBC) who may refuse or be unfit for radical cystectomy.
  • Data from 56 patients treated with HIVEC was analyzed, focusing on high-grade recurrence-free survival (HG-RFS), complete response rates, and adverse events over a median follow-up of 32.2 months.
  • Results showed a 2-year HG-RFS of 35% and a 70% complete response rate for patients with carcinoma in situ, indicating HIVEC as a viable alternative with manageable side effects.
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While there has been much speculation on how the pandemic has affected work location patterns and home location choices, there is sparse evidence regarding the impacts that COVID-19 has had on amenity visits in American cities, which typically constitute over half of all urban trips. Using aggregate app-based GPS positioning data from smartphone users, this study traces the changes in amenity visits in Somerville, MA from January 2019 to December 2020, describing how visits to particular types of amenities have changed as a result of business closures during the public health emergency. Has the pandemic fundamentally shifted amenity-oriented travel behavior or is consumer behavior returning to pre-pandemic trends? To address this question, we calibrate discrete choice models that are suited to Census block-group level analysis for each of the 24 months in a two-year period, and use them to analyze how visitors' behavioral responses to various attributes of amenity clusters have shifted during different phases of the pandemic.

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In a world that is uncertain and noisy, perception makes use of optimization procedures that rely on the statistical properties of previous experiences. A well-known example of this phenomenon is the central tendency effect observed in many psychophysical modalities. For example, in interval timing tasks, previous experiences influence the current percept, pulling behavioural responses towards the mean.

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Tinnitus prevalence numbers in the literature range between 5 and 43%, depending on the studied population and definition. It is unclear when tinnitus becomes pathologic. To assess the tinnitus prevalence in the Dutch general population with different cutoffs for definition.

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Introduction: Patients vary in their preferences regarding involvement in medical decision-making. Current research does not provide complete explanation for this observed variation. Patient involvement in medical decision-making has been found to be influenced by various mechanisms, one of which could be patients' trust in physicians.

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Pain decreases the activity of many ventral tegmental area (VTA) dopamine (DA) neurons, yet the underlying neural circuitry connecting nociception and the DA system is not understood. Here we show that a subpopulation of lateral parabrachial (LPB) neurons is critical for relaying nociceptive signals from the spinal cord to the substantia nigra pars reticulata (SNR). SNR-projecting LPB neurons are activated by noxious stimuli and silencing them blocks pain responses in two different models of pain.

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There is a worldwide trend towards earlier pulmonary vein isolation (PVI) in the treatment of atrial fibrillation (AF). Recently, the STOP-AF and EARLY-AF trials were published, comparing cryoablation and antiarrhythmic drugs as first line rhythm therapy for paroxysmal AF. Both studies did not show a difference in incidence of mortality or heart failure.

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The North American Pediatric Aplastic Anemia Consortium (NAPAAC) is a group of pediatric hematologist-oncologists, hematopathologists, and bone marrow transplant physicians from 46 institutions in North America with interest and expertise in aplastic anemia, inherited bone marrow failure syndromes, and myelodysplastic syndromes. The NAPAAC Bone Marrow Failure Diagnosis and Care Guidelines Working Group was established with the charge of harmonizing the approach to the diagnostic workup of aplastic anemia in an effort to standardize best practices in the field. This document outlines the rationale for initial evaluations in pediatric patients presenting with signs and symptoms concerning for severe aplastic anemia.

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Background: To which extent atrial remodeling occurs before atrial fibrillation (AF) is unknown.

Objective: The PREventive left atrial appenDage resection for the predICtion of fuTure Atrial Fibrillation (PREDICT-AF) study investigated such subclinical remodeling, which may be used for risk stratification and AF prevention.

Methods: Patients (N = 150) without a history of AF with a CHADS-VASc score of ≥2 at an increased risk of developing AF were included.

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Necrotizing enterocolitis (NEC) is an often lethal, inflammatory disease of the preterm intestine. The underdeveloped immune system plays an important role; however, the initial trigger for NEC development is likely a damaged intestinal epithelial layer. We hypothesize that due to incomplete maturation of different epithelial cell lineages, nutrients and bacteria are able to damage the epithelial cells and cause the (immature) inflammatory response, food intolerance and malabsorption seen in NEC.

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The vascular and neurodegenerative processes related to clinical dementia cause cell loss which induces, amongst others, an increase in interstitial fluid (ISF). We assessed microvascular, parenchymal integrity, and a proxy of ISF volume alterations with intravoxel incoherent motion imaging in 21 healthy controls and 53 memory clinic patients - mainly affected by neurodegeneration (mild cognitive impairment, Alzheimer's disease dementia), vascular pathology (vascular cognitive impairment), and presumed to be without significant pathology (subjective cognitive decline). The microstructural components were quantified with spectral analysis using a non-negative least squares method.

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Purpose: Clinical high-grade (HG) T1 non-muscle invasive bladder cancer (NMIBC) represents a significant risk to patients, but these patients are not typically offered neoadjuvant therapies, including immune therapy. In this study, we determine whether patients with HG clinical T1 or T2 bladder urothelial carcinoma (UC) have profiles that predict the potential effectiveness of immune-checkpoint inhibitors (ICI).

Materials And Methods: Data from transurethral resection of bladder tumor (TURBT) specimens from 2 studies was evaluated.

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Objective: To evaluate large propensity-matched cohorts to assess outcomes in patients receiving advanced treatment (AT) with skin substitutes for lower extremity diabetic ulcers (LEDUs) versus no AT (NAT) for the management of LEDUs.

Method: The Medicare Limited Dataset (1 October 2015 through 2 October 2018) were used to retrospectively analyse people receiving care for a LEDU treated with AT or NAT (propensity-matched Group 1). Analysis included major and minor amputations, emergency department (ED) visits and hospital readmissions.

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Comprehensive analysis of tumor infiltrating myeloid cells in the tumor microenvironment of penile squamous cell carcinoma (PSCC) is lacking. In this retrospective study, for the first time, PSCC resection specimens (N = 103) were annotated into the following compartments: intratumoral tumor (IT Tumor), intratumoral stroma (IT Stroma), peritumoral tumor (PT Tumor) and peritumoral stroma (PT Stroma) compartments. We then quantified CD14+, CD68+ and CD163+ myeloid cells within these compartments using an image analysis software and assessed their association with various clinical parameters, including high-risk human papillomavirus (hrHPV) status.

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Objectives: To determine the potential impact of the presence of secondary variant histology on the gene expression profiles of muscle-invasive bladder cancer (MIBC) tumors.

Methods: For six tumors, revised samples were collected from urothelial and secondary variant components (cohort A). The commercial cohort (cohort B) consisted of the anonymized gene expression profiles of 173 patients with MIBC.

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Unlabelled: The present study aims to test the impact of a self-leadership intervention on the work engagement, performance, and health of health care workers. By integrating self-determination theory and self-leadership theory, we propose that when employees are trained how they can autonomously influence own cognitions and behaviour, this will impact their work engagement, perceived performance, and general health. To test the hypotheses, a longitudinal field experiment with three measurement waves was conducted (pre-intervention, immediately after the intervention, and 2 months after the intervention).

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Pediatric brain and central nervous system tumors (PBCNSTs) are the most common solid tumors and are the leading cause of disease-related death in US children. PBCNST incidence rates in Kentucky are significantly higher than in the United States as a whole, and are even higher among Kentucky's Appalachian children. To understand and eventually eliminate such disparities, population-based research is needed to gain a thorough understanding of the epidemiology and etiology of the disease.

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