Clinical evaluation of long-read sequencing-based episignature detection in developmental disorders.

Background: A subset of developmental disorders (DD) is characterized by disease-specific genome-wide methylation changes. These episignatures inform on the underlying pathogenic mechanisms and can be used to assess the pathogenicity of genomic variants as well as confirm clinical diagnoses. Currently, the detection of these episignature requires the use of indirect methylation profiling methodologies.

Healthcare professionals' experiences with expanded noninvasive prenatal screening: challenges and solutions.

Genome-wide non-invasive prenatal cell-free DNA screening (NIPT) can lead to the early detection of important health-related information for the fetus and pregnant woman. However, the expanding scope of screening heightens information complexity and creates challenges for clinical interactions. This study explored Belgian healthcare professionals' experiences to identify challenges and solutions to expanded NIPT in practice.

Full characterization of unresolved structural variation through long-read sequencing and optical genome mapping.

Structural variants (SVs) are important contributors to human disease. Their characterization remains however difficult due to their size and association with repetitive regions. Long-read sequencing (LRS) and optical genome mapping (OGM) can aid as their molecules span multiple kilobases and capture SVs in full.

Multiple paralogues and recombination mechanisms contribute to the high incidence of 22q11.2 Deletion Syndrome.

The 22q11.2 deletion syndrome (22q11.2DS) is the most common microdeletion disorder.