Publications by authors named "Norden A"

Most albumin in blood plasma is thought to be monomeric with some 5% covalently dimerized. However, many reports in the recent biophysics literature find that albumin is reversibly dimerized or even oligomerized. We review data on this from X-ray crystallography and diverse biophysical techniques.

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Background: Patent foramen ovale (PFO) is a congenital anatomical variant which is associated with strokes in young adults. Contrary to vascular risk factors and atherosclerosis, a PFO is present from birth. However, it is completely unknown how an anatomical structure that is already present at birth in a large proportion of the population can convert into a PFO that causes stroke in a few.

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Importance: Cause of ischemic stroke in young people is highly variable; however, the risk of recurrence is often presented with all subtypes of stroke grouped together in classification systems such as the Trial of ORG (danaparoid sodium [Orgaran]) 10172 in Acute Stroke Treatment (TOAST) criteria, which limits the ability to individually inform young patients with stroke about their risk of recurrence.

Objective: To determine the short-term and long-term risk of recurrent vascular events after ischemic stroke at a young age by stroke cause and to identify factors associated with recurrence.

Design, Setting, And Participants: This cohort study used data from the Observational Dutch Young Symptomatic Stroke Study, a prospective, multicenter, hospital-based cohort study, conducted at 17 hospitals in the Netherlands between 2013 and 2021.

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Article Synopsis
  • The study investigates the effects of rapid digitalization in higher education due to the COVID-19 pandemic on student performance across various disciplines.
  • It utilizes a dataset of 82,694 student course grades over six years to reveal that crisis-driven digitalization significantly affected passing rates and grades, with outcomes varying by academic discipline.
  • Practical fields like nursing suffered negatively from the shift, while theoretical fields like business and math benefitted; additionally, master's students and international students struggled more compared to undergraduates in digital learning environments.
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Background: Limited data exists on cognitive recovery in young stroke patients. We aimed to investigate the longitudinal course of cognitive performance during the first year after stroke at young age and identify predictors for cognitive recovery.

Methods: We conducted a multicentre prospective cohort study between 2013 and 2021, enrolling patients aged 18-49 years with first-ever ischaemic stroke.

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The evolution of gonochorism from hermaphroditism is linked with the formation of sex chromosomes, as well as the evolution of sex-biased and sex-specific gene expression to allow both sexes to reach their fitness optimum. There is evidence that sexual selection drives the evolution of male-biased gene expression in particular. However, previous research in this area in animals comes from either theoretical models or comparative studies of already old sex chromosomes.

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Background: Iatrogenic gas embolism is the presence of gas in vascular structures. Feared are those in coronary or cerebral arteries. These can result in cerebral or myocardial infarction.

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Introduction: Acute mechanical thrombectomy (MT) is the preferred treatment for large vessel occlusion-related stroke. Histopathological research on the obtained occlusive embolic thrombus may provide information regarding the aetiology and pathology of the lesion to predict prognosis and propose possible future acute ischaemic stroke therapy.

Methods: A total of 75 consecutive patients who presented to the Amphia Hospital with acute large vessel occlusion-related stroke and underwent MT were included in the study.

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Article Synopsis
  • The study aimed to differentiate multisystem inflammatory syndrome in adults (MIS-A) from acute COVID-19 for better clinical management, using data from 6 medical centers between March 2020 and December 2021.
  • Out of 10,223 patients with SARS-CoV-2-related illnesses, 53 cases of MIS-A were identified and compared to 106 matched COVID-19 cases, revealing distinct demographic and clinical features.
  • Patients with MIS-A were more likely to have specific symptoms such as gastrointestinal issues, higher levels of certain lab markers, and required longer hospital stays and more intensive care treatments than those with acute COVID-19, although the mortality rate was similar at 6%.
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Rosacea is a chronic skin disorder involving central facial erythema secondary to vascular instability and cutaneous inflammation. Rosacea is divided into different subtypes based on the morphology of the rash — erythematotelangiectatic, papulopustular, phymatous, and ocular rosacea. A less-known subtype called neurogenic rosacea has been proposed to categorize patients suffering from rosacea with erythematous flushing and burning sensation that is refractory to traditional treatment.

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Introduction: We aimed to investigate the prevalence of cognitive impairment in the subacute phase after transient ischemic attack (TIA) and ischemic stroke (IS), factors associated with a vascular cognitive disorder, and the prevalence of subjective cognitive complaints and their relation with objective cognitive performance.

Patients And Methods: In this multicenter prospective cohort study, we recruited patients with first-ever TIA and IS, aged 18-49 years, between 2013 and 2021 for cognitive assessment up to 6 months after index event. We calculated composite Z-scores for seven cognitive domains.

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Introduction: Psoriatic arthritis is estimated to develop in 2% of patients with psoriasis per year and can result in significant morbidity. Early diagnosis and treatment of psoriatic arthritis are imperative to prevent irreversible arthritic joint damage. Dermatologists play a key role in identifying patients who are at risk for or with early signs of psoriatic arthritis.

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The evolution of separate sexes from hermaphroditism is thought to have occurred independently many times, and may be linked to the evolution of sex chromosomes. Even though we have a good understanding of the theoretical steps in the evolution of sex chromosomes from a hermaphrodite ancestor, the initial stages are still hard to study in animals because many well-studied animal sex chromosome systems are old. We addressed this problem by experimentally selecting a hermaphrodite via sex-limited experimental evolution for several generations, simulating the early stages in the evolution of a sex chromosome.

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Purpose: Gliomagenesis and resistance of glioblastoma (GBM) are believed to be mediated by glioma stem cells (GSC). Evidence suggests that SHH signaling promotes GSC proliferation and self-renewal.

Methods: ABTC-0904 was a two-arm, multicenter phase 0/II study of GDC-0449, an oral inhibitor of Smoothened (SMO) in patients undergoing resection for recurrent GBM.

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Background: Identification of risk factors and causes of stroke is key to optimize treatment and prevent recurrence. Up to one-third of young patients with stroke have a cryptogenic stroke according to current classification systems (Trial of ORG 10172 in Acute Stroke Treatment [TOAST] and atherosclerosis, small vessel disease, cardiac pathology, other causes, dissection [ASCOD]). The aim was to identify risk factors and leads for (new) causes of cryptogenic ischemic stroke in young adults, using the pediatric classification system from the IPSS study (International Pediatric Stroke Study).

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Disease control for moderate to severe atopic dermatitis (AD) has been primarily achieved with phototherapy and non-specific immunomodulators, cyclosporine, and methotrexate. These treatments have, however, been associated with many unfavorable side effects.

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Background And Objectives: Causes of stroke in young adults differ from those in the elderly individuals, and in a larger percentage, no cause can be determined. To gain more insight into the etiology of (cryptogenic) stroke in the young population, we investigated whether trigger factors, such as short-lasting exposure to toxins or infection, may play a role.

Methods: Patients aged 18-49 years with a first-ever ischemic stroke or intracerebral hemorrhage (ICH) in 17 participating centers in the Netherlands completed a questionnaire about exposure to 9 potential trigger factors in hazard periods and on a regular yearly basis.

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Article Synopsis
  • Biologics can trigger the production of anti-drug antibodies (ADAs) in patients, but their clinical significance remains unclear, especially in those with psoriasis treated with IL-17 inhibitors.
  • A systematic review of 17 studies revealed varying ADA incidence rates for different drugs, with brodalumab showing a notable decrease in efficacy among ADA-positive patients.
  • Monitoring ADAs and titers may not be necessary for secukinumab and bimekizumab, but it could be beneficial for brodalumab and ixekizumab in clinical settings.
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Background: The pathogenesis of diabetic kidney disease (DKD) is complex and involves both glomerular and tubular dysfunction. A global assessment of kidney function is necessary to stage DKD, a progressive kidney disease that is likely to begin in childhood. The present study evaluated whether kidney injury biomarkers identified as early DKD biomarkers in adults have any prognostic value in the very early stages of childhood diabetes.

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Anti-drug antibodies (ADAs) can form with certain biological medications, but their clinical significance is not fully understood. ADA formation in psoriasis patients treated with IL-23 inhibitors was evaluated, looking at the incidence of ADAs, impact on clinical outcomes and association with adverse events. A systematic search of PubMed, Cochrane and Embase databases yielded 318 articles, which were manually reviewed.

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Background: The value of administering intravenous alteplase before endovascular treatment (EVT) for acute ischemic stroke has not been studied extensively, particularly in non-Asian populations.

Methods: We performed an open-label, multicenter, randomized trial in Europe involving patients with stroke who presented directly to a hospital that was capable of providing EVT and who were eligible for intravenous alteplase and EVT. Patients were randomly assigned in a 1:1 ratio to receive EVT alone or intravenous alteplase followed by EVT (the standard of care).

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