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Stem cells reveal how illness-linked genetic variation affects neurons

A genetic variation linked to schizophrenia, bipolar disorder and severe depression wreaks havoc on connections among neurons in the developing brain, a team of researchers reports. The study used stem cells generated from people with and without mental illness to observe the effects of a rare and pernicious genetic variation on young brain cells. The results add to evidence that several major mental illnesses have common roots in faulty 'wiring' during early brain development.
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