Author Archives: Ana Pena, PhD

New Blood Test May Help Diagnose Prader-Willi Syndrome, Other Complex Disorders

A new blood test called EpiSign may help identify complex and hard-to-diagnose genomic imprinting disorders such as Prader-Willi syndrome (PWS). EpiSign, available in two versions, can diagnose 19 complex disorders. This newly available diagnostic tool, which identifies common DNA modifications, may also help researchers understand the clinical significance of genetic…