Scientists are driving new discoveries about the role of genetic variation in specific human disorders at an exciting and unprecedented pace, and physicians are increasingly incorporating genetic tests into pediatric clinics as a diagnostic tool. But with high-throughput sequencing methods continuously yielding floods of new information, how can clinicians keep up with updated data for patients who have already received genetic test results?
Tag Archive: Division of Genomic Diagnostics
The human genome contains approximately 20,000 genes, and exome analysis focuses on about 7,000 genes known in medical literature to be clinically associated with a disease. Currently, up to 70 percent of exome test reports are negative or inconclusive. But suppose at a later date a researcher discovers a gene that could be causative of the disease?
Children’s Hospital of Philadelphia researchers led by Avni Santani, PhD, associate professor of Clinical Pathology, developed a useful tool for automated reanalysis that facilitates efficient reevaluation of nondiagnostic clinical exome sequencing (CES) samples using up-to-date literature published after the initial exome analysis was performed. They demonstrated this methodology enabled identification of novel diagnostic findings in almost 16 percent of previously nondiagnostic samples.