In 2019, researchers at the Psychiatric Genomics Consortium, Harvard University, and the UNC School of Medicine identified 136 “hot spots” within the genome that are associated with eight psychiatric disorders. Among them, 109 hot spots were shared among multiple disorders, or “pleiotropic”. However, it was not clear at the time how genetic variations within these hot spots differed from those that only have roles in only one disorder.
A new genetic study, led by Hyejung Won, PhD, associate professor in the Department of Genetics and the UNC Neuroscience Center, and Patrick Sullivan, MD, FRANZCP, the Yeargen Distinguished Professor of Psychiatry and Genetics, has successfully delineated the functional consequences of genetic variants into two groups. Their findings, which were published in Cell, suggest that pleiotropic variants may be optimal targets for treatment, due to their extended roles in development and sensitivity to change.
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