85 results match your criteria: "Medical Centre of the University of Amsterdam[Affiliation]"

fMRI connectivity as a biomarker of antipsychotic treatment response: A systematic review.

Neuroimage Clin

December 2023

Department of Psychiatry, Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Intensive Care Medicine and UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.

Background: Antipsychotic drugs are the first-choice therapy for psychotic episodes, but antipsychotic treatment response (AP-R) is unpredictable and only becomes clear after weeks of therapy. A biomarker for AP-R is currently unavailable. We reviewed the evidence for the hypothesis that functional magnetic resonance imaging functional connectivity (fMRI-FC) is a predictor of AP-R or could serve as a biomarker for AP-R in psychosis.

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Objectives: With the goal of facilitating the use of HIV-TRePS to optimize therapy in settings with limited healthcare resources, we aimed to develop computational models to predict treatment responses accurately in the absence of commonly used baseline data.

Methods: Twelve sets of random forest models were trained using very large, global datasets to predict either the probability of virological response (classifier models) or the absolute change in viral load in response to a new regimen (absolute models) following virological failure. Two 'standard' models were developed with all baseline variables present and 10 others developed without HIV genotype, time on therapy, CD4 count or any combination of the above.

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2019 EACTS/EACTA/EBCP guidelines on cardiopulmonary bypass in adult cardiac surgery.

Br J Anaesth

December 2019

Department of Public Health and Clinical Medicine, Heart Centre, Umeå University, Umeå, Sweden.

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Article Synopsis
  • Advances in equipment and techniques have significantly improved the outcomes of chronic total occlusion (CTO) percutaneous coronary intervention (PCI), with seven best practice principles developed through global collaboration.
  • The primary reason for performing CTO-PCI is to alleviate ischemic symptoms, and using a combination of detailed angiography and specific crossing strategies is crucial for successful procedures.
  • Successful CTO-PCI relies on specialized expertise, careful lesion preparation, and the use of advanced equipment to minimize complications and enhance patient outcomes, underscoring the importance of adopting these best practices widely.
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Extensive epigenomic integration of the glucocorticoid response in primary human monocytes and in vitro derived macrophages.

Sci Rep

February 2019

Department of Molecular Biology, Radboud Institute for Molecular Life Sciences, Faculty of Science Radboud University, PO box 9101, 6500 HG, Nijmegen, The Netherlands.

Glucocorticoid receptor is a transcription factor that is ubiquitously expressed. Glucocorticoids are circadian steroids that regulate a wide range of bodily functions, including immunity. Here we report that synthetic glucocorticoids affect 1035 mRNAs in isolated healthy human blood monocytes but only 165 in the respective six day-old monocyte-derived macrophages.

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Article Synopsis
  • There's been a lot of new research on tiny structures called extracellular vesicles (EVs) that cells release, which help us understand how cells work and what goes wrong in diseases.
  • Scientists have had a hard time studying these EVs because they come in different types and can be tough to separate and analyze properly.
  • The International Society for Extracellular Vesicles updated their guidelines, called MISEV2018, to help researchers share clear information about how to study EVs and ensure their findings are accurate and reliable.
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Coping styles are associated with levels of subjective well-being. Negative life events and reduced subjective well-being are more prevalent in patients with psychotic disorders. The aims of the current study were to test a mediation model, with coping styles as potential mediators of the relation between negative life events and subjective well-being in patients with psychotic disorders (N = 259), and aimed to repeat the potential mediation model in patients' non-affected siblings (N = 309).

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Biomarker-based corticosteroid adjustment in severe asthma: a modified Delphi consensus.

ERJ Open Res

October 2018

Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, UK.

http://ow.ly/sTrf30my3jw.

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Mammalian cells release extracellular vesicles (EVs) into their microenvironment that travel the entire body along the stream of bodily fluids. EVs contain a wide range of biomolecules. The transported cargo varies depending on the EV origin.

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Objectives: Optimizing antiretroviral drug combination on an individual basis can be challenging, particularly in settings with limited access to drugs and genotypic resistance testing. Here we describe our latest computational models to predict treatment responses, with or without a genotype, and compare their predictive accuracy with that of genotyping.

Methods: Random forest models were trained to predict the probability of virological response to a new therapy introduced following virological failure using up to 50 000 treatment change episodes (TCEs) without a genotype and 18 000 TCEs including genotypes.

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Background: Tissue factor (TF) can be present in a non-coagulant and coagulant form. Whether the coagulant activity is affected by the plasma membrane microenvironment is unexplored.

Objective: This article studies the presence and coagulant activity of human TF in plasma membrane micro-domains.

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Background: Activated platelets release platelet extracellular vesicles (PEVs). Adenosine diphosphate (ADP) receptors P2Y1 and P2Y12 both play a role in platelet activation, The present hypothesis herein is that the inhibition of these receptors may affect the release of PEVs.

Methods: Platelet-rich plasma from 10 healthy subjects was incubated with saline, P2Y1 antagonist MRS2179 (100 μM), P2Y12 antagonist ticagrelor (1 μM), and a combination of both antagonists.

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Primary resistance to integrase strand transfer inhibitors in patients infected with diverse HIV-1 subtypes in sub-Saharan Africa.

J Antimicrob Chemother

May 2018

Infectious Diseases Unit & IrsiCaixa AIDS Research Institute, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Catalonia, Spain.

Objectives: To investigate the prevalence and patterns of major and accessory resistance mutations associated with integrase strand transfer inhibitors (INSTIs), across diverse HIV-1 subtypes in sub-Saharan Africa.

Methods: pol gene sequences were obtained using Illumina next-generation sequencing from 425 INSTI-naive HIV-infected adults from Kenya (21.2%), Nigeria (7.

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The isolation of extracellular vesicles (EVs) from blood is of great importance to understand the biological role of circulating EVs and to develop EVs as biomarkers of disease. Due to the concurrent presence of lipoprotein particles, however, blood is one of the most difficult body fluids to isolate EVs from. The aim of this study was to develop a robust method to isolate and characterise EVs from blood with minimal contamination by plasma proteins and lipoprotein particles.

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Background: Pretreatment drug resistance in people initiating or re-initiating antiretroviral therapy (ART) containing non-nucleoside reverse transcriptase inhibitors (NNRTIs) might compromise HIV control in low-income and middle-income countries (LMICs). We aimed to assess the scale of this problem and whether it is associated with the intiation or re-initiation of ART in people who have had previous exposure to antiretroviral drugs.

Methods: This study was a systematic review and meta-regression analysis.

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One in five patients with a psychotic disorder has persistent low subjective well-being (SWB), which is associated with a poorer prognosis. In schizophrenia patients, personality traits are associated with SWB. The present study aims to evaluate whether neuroticism and extraversion influence SWB in patients with a psychotic disorder and healthy controls over the course of time.

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Introduction: We present an online decision aid to involve patients with a psychotic disorder in shared decision-making concerning the selection of antipsychotic medication.

Method: Patients selected effectiveness and adverse effects criteria from the Subject's Response to Antipsychotics-34 questionnaire. Numerical data from meta-analyses, clinical trial data, receptor affinities and expert opinions were used to rank antipsychotics on each criterion.

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Obstructive sleep apnoea syndrome (OSAS) is associated with several sleep disorders and sleep-related problems. Therefore, the aim of this study was to compare the effects of a mandibular advancement device (MAD) with those of nasal continuous positive airway pressure (nCPAP) on self-reported symptoms of common sleep disorders and sleep-related problems in mild and moderate OSAS patients. In this randomised placebo-controlled trial, sixty-four OSAS patients (52·0 ± 9·6 years) were randomly assigned to an MAD, nCPAP or an intra-oral placebo appliance in a parallel design.

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Oral appliance therapy versus nasal continuous positive airway pressure in obstructive sleep apnea: a randomized, placebo-controlled trial on psychological distress.

Clin Oral Investig

September 2017

Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands.

Objectives: The aim of this randomized placebo-controlled trail was to compare the effects of an objectively titrated mandibular advancement device (MAD) with those of nasal continuous positive airway pressure (nCPAP) and an intraoral placebo device on symptoms of psychological distress in OSA patients.

Materials And Methods: In a parallel design, 64 mild/moderate OSA patients (52.0 ± 9.

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Platelet extracellular vesicles as biomarkers for arterial thrombosis.

Platelets

May 2017

b Laboratory of Experimental Clinical Chemistry, and Vesicle Observation Centre , Academic Medical Centre of the University of Amsterdam, Amsterdam , The Netherlands.

Arterial thrombosis is a major and global cause of human death and disability. Considering the socioeconomic costs of arterial thrombosis, identification of biomarkers to predict and detect arterial thrombosis at an early stage is an important public health goal. Platelet extracellular vesicles (PEV) are a new candidate biomarker of arterial thrombosis.

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Objectives: Optimizing antiretroviral drug combination on an individual basis in resource-limited settings is challenging because of the limited availability of drugs and genotypic resistance testing. Here, we describe our latest computational models to predict treatment responses, with or without a genotype, and compare the potential utility of global and local models as a treatment tool for South Africa.

Methods: Global random forest models were trained to predict the probability of virological response to therapy following virological failure using 29 574 treatment change episodes (TCEs) without a genotype, 3179 of which were from South Africa and were used to develop local models.

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