NASET

Authors: National Association of Special Education Teachers

How Marijuana May Damage Teenage Brains

In a study of adolescent mice with a version of a gene linked to serious human mental illnesses, Johns Hopkins Medicine researchers say they have uncovered a possible explanation for how marijuana may damage the brains of some human teens. In a report that will be published in a 2019 print issue of the journal Biological Psychiatry, the researchers say they showed that pot exposure increases inflammation in a specific type of brain cell in adolescent mice that carries a rare genetic mutation linked to schizophrenia, bipolar disorder and other major psychiatric disorders. In a proof-of-concept experiment, the investigators then used a nonsteroidal anti-inflammatory drug, NS398, to suppress the pot-induced inflammation in the brain. The researchers report they were able to prevent marijuana's brain damage in mice that appear genetically susceptible to the harmful effects. Read More

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