WES
Clinical indications
Family with a history genetic disease
Patients with atypical disease characteristics without diagnosis
Patients with physical and mental disabilities
Couples who want to check the reason of recurrent miscarriage or stillbirth
Patients who have failed to find a genetic cause by clinical exome sequencing
Technology
Wet lab (Genomic DNA)
Illumina NovaSeq 6000; Capture based tech (nano WES / IDT / Agilent probe) Average 100X sequencing coverage, Q30 > 90%, 20X coverage rate > 95%Dry lab (Bioinformatics)
VeritaTrekker® Variants Detection System (SNVs, CNVs, InDels) Enliven® Data Annotation and Interpretation System Cruxome Interface®Case sharing
Two female siblings originally diagnosed with "cerebral palsy" had received long-term treatment with no significant improvement in perennial paralysis and language skills. Family WES tests found that both girls inherited pathogenic mutations in the GCH1 gene associated with the metabolic disease Dopa-responsive dystonia (DRD). Both girls have now been successfully effectively treated by oral Medopa (Benserazide-Levodopa), reducing the severity of symptoms and improving their quality of life. This case fully demonstrates the important role of WES in the precise diagnosis and treatment of genetic diseases.