Research Consortium Reveals Genetic Overlap in 14 Psychiatric Disorders, Impacting Diagnosis and Treatment
An international team of researchers has published a comprehensive study in the journal Nature, revealing significant genetic overlap among 14 psychiatric disorders. This study, conducted by the Psychiatric Genomics Consortium's Cross-Disorder Working Group, involved analyzing genetic data from over 6 million individuals. The research identified five families of disorders with high genetic overlap, including compulsive disorders, internalizing disorders, neurodevelopmental disorders, schizophrenia and bipolar disorder, and substance use disorders. The findings highlight that individuals diagnosed with one psychiatric disorder often have a second or third, complicating diagnosis and treatment. The study's co-chairs, Kenneth Kendler from Virginia Commonwealth University and Jordan Smoller from Harvard Medical School, emphasize the importance of genetics in understanding these disorders, as psychiatry lacks definitive laboratory tests for diagnosis.