136 results match your criteria: "Amsterdam University Medical Centers Location AMC[Affiliation]"

Efficacy and Toxicity of Calcitonin Treatment in Children with Cherubism: A Single-Center Cohort Study.

J Bone Miner Res

December 2023

Department of Pediatric Oncology, Amsterdam University Medical Centers Location AMC, University of Amsterdam, Amsterdam, the Netherlands.

Cherubism is a rare autosomal dominant disease characterized by expansile osteolytic jawbone lesions. The effect and safety of off-label calcitonin treatment during the progressive phase of the disease are not well described. In this retrospective study, we present data on the radiological response and adverse effects of subcutaneously administered calcitonin in a cohort of nine cherubism children (three female, six male).

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Cross talk: Fat and the arrhythmogenic substrate.

Heart Rhythm

December 2023

Department of Experimental Cardiology, Amsterdam University Medical Centers (location AMC), Amsterdam, The Netherlands. Electronic address:

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Background: Body composition during childhood may predispose to negative health outcomes later in life. Automatic segmentation may assist in quantifying pediatric body composition in children.

Objective: To evaluate automatic segmentation for body composition on pediatric computed tomography (CT) scans and to provide normative data on muscle and fat areas throughout childhood using automatic segmentation.

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Female Gene Networks Are Expressed in Myofibroblast-Like Smooth Muscle Cells in Vulnerable Atherosclerotic Plaques.

Arterioscler Thromb Vasc Biol

October 2023

Laboratory of Experimental Cardiology (E.D.B., M.B., E.M., R.J.G.H., D.K., M.D., H.M.d.R.), University Medical Centre Utrecht, Utrecht University, the Netherlands.

Article Synopsis
  • * The study utilized RNA sequencing data to create gene regulatory networks, revealing two main SMC phenotypes in women: a vulnerable myofibroblast-like network and a contractile network, which differed in expression levels compared to males.
  • * Findings suggest that female atherosclerosis involves specific gene networks that promote plaque vulnerability, with important implications for understanding disease progression and potential treatment strategies.
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Inflammatory and glycolytic programs underpin a primed blood neutrophil state in patients with pneumonia.

iScience

July 2023

Center for Experimental and Molecular Medicine (CEMM), Amsterdam University Medical Centers - Location AMC, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands.

Neutrophils are potent immune cells with key antimicrobial functions. Previous work has shown that neutrophil effector functions are mainly fueled by intracellular glycolysis. Little is known about the state of neutrophils still in the circulation in patients during infection.

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Single-cell profiling reveals age-associated immunity in atherosclerosis.

Cardiovasc Res

November 2023

Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.

Aims: Aging is a dominant driver of atherosclerosis and induces a series of immunological alterations, called immunosenescence. Given the demographic shift towards elderly, elucidating the unknown impact of aging on the immunological landscape in atherosclerosis is highly relevant. While the young Western diet-fed Ldlr-deficient (Ldlr-/-) mouse is a widely used model to study atherosclerosis, it does not reflect the gradual plaque progression in the context of an aging immune system as occurs in humans.

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We investigated whether the impact of potentially traumatic events (PTEs) on trauma-related symptoms changes across the transitional adult lifespan (i.e., 16-100 years old) and if this association differs for self-reported COVID-19-related PTEs compared to other PTEs.

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Structural conservation of Lassa virus glycoproteins and recognition by neutralizing antibodies.

Cell Rep

May 2023

Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. Electronic address:

Article Synopsis
  • - Lassa fever is caused by the Lassa virus (LASV), and its glycoprotein complex (GPC) is critical for entry into cells and the target for neutralizing antibodies, making vaccine development challenging due to its unstable nature and varying forms across LASV lineages.
  • - Researchers have created stable, prefusion trimeric GPCs from several LASV lineages, finding that, despite genetic differences, there is structural conservation among them.
  • - The study includes insights on how specific antibodies can neutralize the virus and identifies a neutralizing antibody that targets a key region of the GPC, contributing valuable information for developing vaccines against different LASV strains.
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Background: The COVID-19 pandemic has affected people globally both physically and psychologically. The increased demands for mental health interventions provided by clinical psychologists, psychotherapists and mental health care professionals, as well as the rapid change in work setting (e.g.

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Prolonged exposure (PE) is an effective treatment for post-traumatic stress disorder (PTSD). This study aimed to analyse the cost-effectiveness of three exposure-based treatments in patients with childhood abuse-related PTSD. A net-benefit analysis was conducted alongside a pragmatic randomized controlled trial with participants (= 149) randomized to three conditions: PE (48), intensified PE (i-PE, = 51), and phase-based PE [Skills Training in Affective and Interpersonal Regulation (STAIR) + PE, = 50].

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Continuous versus Pulsatile Flow in 24-Hour Vascularized Composite Allograft Machine Perfusion in Swine: A Pilot Study.

J Surg Res

March 2023

Division of Plastic Surgery, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Shriners Hospital for Children, Boston, Massachusetts. Electronic address:

Introduction: Multiple perfusion systems have been investigated on vascularized composite allografts, with various temperatures and different preservation solutions, most using continuous flow (CF). However, physiological flow is pulsatile and provides better outcomes in kidney and lung ex vivo perfusions. The objective of this pilot study is to compare pulsatile flow (PF) with CF in our 24-h subnormothermic machine perfusion protocol for swine hindlimbs.

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A comparison of how deep brain stimulation in two targets with anti-compulsive efficacy modulates brain activity using fMRI in awake rats.

Psychiatry Res Neuroimaging

April 2023

The Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands; Department of Psychiatry, Amsterdam University Medical Centers (location AMC), University of Amsterdam, Amsterdam, The Netherlands.

Deep brain stimulation (DBS) is an established neuromodulatory intervention against otherwise treatment-refractory obsessive-compulsive disorder (OCD). Several DBS targets, all of which are part of brain networks connecting basal ganglia and prefrontal cortex, alleviate OCD symptoms. Stimulation of these targets is thought to unfold its therapeutic effect by modulation of network activity through internal capsule (IC) connections.

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Article Synopsis
  • The text talks about how scientists are trying to use tiny living things called microbes to help treat people with sepsis, a serious illness.
  • Though some recent studies didn’t show good results with using probiotics, which are good microbes, researchers believe it’s important to keep trying.
  • They think that finding new kinds of probiotics and understanding the balance of microbes in our bodies can help improve chances of survival for patients with sepsis in the future.
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Current state of artificial intelligence-based algorithms for hospital admission prediction in patients with heart failure: a scoping review.

Eur Heart J Digit Health

September 2022

Heart Center, Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.

Aims: Patients with congestive heart failure (HF) are prone to clinical deterioration leading to hospital admissions, burdening both patients and the healthcare system. Predicting hospital admission in this patient group could enable timely intervention, with subsequent reduction of these admissions. To date, hospital admission prediction remains challenging.

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Introduction: Over 25% of Dutch young people are psychologically unhealthy. Individual and societal consequences that follow from having mental health complaints at this age are substantial. Young people need care which is often unavailable.

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Introduction: High flow nasal cannula (HFNC) reduces the need for intubation in patients with hypoxaemic acute respiratory failure (ARF), but its added value in patients with severe coronavirus disease 2019 (COVID-19) and a do-not-intubate (DNI) order is unknown. We aimed to assess (variables associated with) survival in these patients.

Materials And Methods: We described a multicentre retrospective observational cohort study in five hospitals in the Netherlands and assessed the survival in COVID-19 patients with severe acute respiratory failure and a DNI order who were treated with high flow nasal cannula.

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The effectiveness of a mobile intervention to reduce young adults' alcohol consumption to not exceed low-risk drinking guidelines.

Front Digit Health

December 2022

Department of Clinical, Neuro and Developmental Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit, Amsterdam, Netherlands.

Background: Young adults' drinking habits often exceed low-risk drinking guidelines. As young adults show increased access, use, and interest in personalized content related to physical and mental well-being, mobile applications might be a suitable tool to reach this target group. This study investigates the effectiveness of "Boozebuster", a self-guided mobile application incorporating various therapeutic principles to reduce young adults' alcohol consumption to not exceeding low-risk drinking guideline levels, compared to an educational website condition.

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Article Synopsis
  • A nationwide study in the Netherlands analyzed clinical characteristics and outcomes of over 5,600 hospitalized COVID-19 patients across four waves of the pandemic, focusing on treatment effects and mortality rates.
  • The research found that the use of remdesivir and corticosteroids led to improved survival rates among patients, while hydroxychloroquine was linked to increased mortality on regular wards.
  • The findings highlight the need for ongoing assessment of treatment impacts in real-world settings, as clinical trial results may not fully align with actual patient outcomes.
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Background And Purpose: Sex-based differences in acute ischemic stroke are a well-known phenomenon. We aimed to explore these differences between women and men in the Efficacy and Safety of MRI-Based Thrombolysis in Wake-Up Stroke (WAKE-UP) trial.

Methods: We compared baseline demographic and imaging characteristics (visual fluid-attenuated inversion recovery [FLAIR] positivity, relative FLAIR signal intensity, collateral status) between women and men in all screened patients.

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Chromosomal Instability, Selection and Competition: Factors That Shape the Level of Karyotype Intra-Tumor Heterogeneity.

Cancers (Basel)

October 2022

Laboratory for Experimental Oncology and Radiobiology, Center for Experimental and Molecular Medicine, Cancer Center Amsterdam and Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam University Medical Centers-Location AMC, 1105 AZ Amsterdam, The Netherlands.

Intra-tumor heterogeneity (ITH) is a pan-cancer predictor of survival, with high ITH being correlated to a dismal prognosis. The level of ITH is, hence, a clinically relevant characteristic of a malignancy. ITH of karyotypes is driven by chromosomal instability (CIN).

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Post COVID-19 condition: critical need for a clear definition and detailed pathophysiology.

J Cachexia Sarcopenia Muscle

December 2022

Laboratory for Myology, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.

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RANKL inhibition for giant cell lesions of the jaw: A retrospective cohort analysis.

Eur J Cancer

November 2022

Department of Oral and Maxillofacial Surgery, Amsterdam UMC (Location AMC) and Academic Center for Dentistry, University of Amsterdam, Amsterdam, the Netherlands.

Background: In all giant-cell-rich lesions (GCRL) occurring in bone, a common underlying excessive RANKL expression is held responsible for the osteolytic activity. Apart from giant cell tumour of bone (GCTB), systematic outcome analysis of RANKL inhibition in other GCRL is unavailable. The aim of this study is to assess the efficacy and safety of a 1-year denosumab protocol in giant cell lesions of the jaw (GCLJ).

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Article Synopsis
  • The study investigates the incomplete knowledge of peroxisomal proteins, known as the peroxi-ome, which is essential for grasping their role in cellular metabolism.
  • By utilizing high-content microscopy on Saccharomyces cerevisiae, the researchers expanded the known peroxi-ome by about 40% and identified new protein targeting processes within peroxisomes.
  • The findings highlight the importance of peroxisomes in gluconeogenesis and their broader implications for organismal health and disease understanding.
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Rectal microbiota are coupled with altered cytokine production capacity following community-acquired pneumonia hospitalization.

iScience

August 2022

Center for Experimental and Molecular Medicine (CEMM), Amsterdam University Medical Centers - Location AMC, University of Amsterdam, Amsterdam, the Netherlands.

Human studies describing the immunomodulatory role of the intestinal microbiota in systemic infections are lacking. Here, we sought to relate microbiota profiles from 115 patients with community-acquired pneumonia (CAP), both on hospital admission and following discharge, to concurrent circulating monocyte and neutrophil function. Rectal microbiota composition did not explain variation in cytokine responses in acute CAP (median 0%, IQR 0.

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