Publications by authors named "M J H Begemann"

Background: Symptom severity and social functioning are important outcomes after first episode psychosis (FEP), yet current evidence about associations between them is inconsistent and lacks (subclinical) momentary insights.

Methods: The current Ecological Momentary Assessment (EMA) study was conducted in 58 people in remission from FEP, as part of the HAMLETT (Handling Antipsychotic Medication: Long-term Evaluation of Targeted Treatment) trial. At baseline, participants were prompted to report momentary mental states and social context 10x/day for eight consecutive days, including psychotic experiences (PEs), motivation/drive and negative affect, that may indicate proxies of (subclinical) psychotic, negative and general affective symptoms, respectively.

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Article Synopsis
  • The text discusses the importance of effective methods for analyzing and visualizing copy number variations (CNVs) in genetic research and clinical practice.
  • It introduces CNVizard, a Streamlit app designed to enhance the visualization of CNVkit data, and highlights its integration with the CNVand pipeline for better annotation of CNV or SV VCF files.
  • The combination of CNVizard and CNVand facilitates a more comprehensive and user-friendly approach to analyzing sequencing data, making it easier for users to visualize CNV data interactively.
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To assess the suitability of genome sequencing (GS) as the second step in the diagnostics of patients with the features of 11p15.5-associated imprinting disorders (ImpDis: Silver-Russell syndrome [SRS], Beckwith-Wiedemann syndrome [BWS]), we performed short-read GS in patients negatively tested for imprinting disturbances. Obtaining a genetic diagnosis for patients with the features of these syndromes is challenging due to the clinical and molecular heterogeneity and overlap, and many patients remain undiagnosed after the currently suggested stepwise diagnostic workup.

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Malformations of the brain are common and vary in severity, from negligible to potentially fatal. Their causes have not been fully elucidated. Here, we report pathogenic variants in the core protein-folding machinery TRiC/CCT in individuals with brain malformations, intellectual disability, and seizures.

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Negative symptoms can be an integral part of schizophrenia spectrum pathology and can be secondary to other psychotic symptoms or caused by antipsychotic medication. As antipsychotic drugs differ in their affinity to dopamine receptors and some antipsychotics have partial agonistic effects, antipsychotic drugs are expected to vary in their ability to cause negative symptoms. The association between negative symptoms and antipsychotic medication divided into partial agonists, or antagonists with high or low D affinity was assessed in 310 remitted first episode psychosis (FEP) patients.

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