Scientists Eliminate Schizophrenia Symptoms in Mice

Targeting expression of NRG1, which makes a protein important for brain development, may hold promise for treating at least some patients with the brain disorder.  Like patients with schizophrenia, adult mice biogenetically-engineered to have higher NRG1 levels showed reduced activity of the brain messenger chemicals glutamate and γ-aminobutyric acid (GABA). The mice also showed behaviors related to aspects of the human illness. While schizophrenia is generally considered a developmental disease that surfaces in early adulthood, the team found that even when they kept NRG1 levels normal until adulthood, mice still exhibited schizophrenia-like symptoms once higher levels were expressed. Without intervention, they developed symptoms at about the same age humans do.

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