Genetic Link Between Marijuana Use and Psychiatric Disorders

Source: "Shared Genetics for Cannabis Use and Psychiatric Disorders," Neuroscience News, 21 May 2023.

"Researchers discovered shared genetic underpinnings for cannabis use and psychiatric disorders like schizophrenia and bipolar disorder."

"Some genetic variants can have opposing effects – increasing risk of cannabis use while decreasing the risk of schizophrenia or bipolar disorder."

"These findings may indicate that a subset of the population is at high risk for both cannabis use and psychiatric disorders, based on their genetic propensity."

"Cannabis is a psychoactive drug which sometimes produces psychotic-like symptoms. Additionally, the rate of cannabis use is high among patients with disorders linked to psychosis, such as schizophrenia and bipolar disorder. Genetic factors play an important role in determining an individual’s susceptibility to developing psychiatric disorders or their likelihood of using cannabis. Some of the genetic variants associated with cannabis use are also linked to psychiatric disorders."

"'These findings are important as they show that the complex links between cannabis use and these disorders may not only be caused by cannabis use itself, but could also be driven by shared genetic susceptibility', researcher Nadine Parker says."

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