01 June 2013

Lead acts to trigger schizophrenia 

Behavioral and MRI study in mice points to a synergistic relationship between lead exposure and schizophrenia gene

Mice engineered with a human gene for schizophrenia and exposed to lead during early life exhibited behaviors and structural changes in their brains consistent with schizophrenia. Scientists at Columbia University's Mailman School of Public Health and the Johns Hopkins University School of Medicine say their findings suggest a synergistic effect between lead exposure and a genetic risk factor, and open an avenue to better understanding the complex gene-environment interactions that put people at risk for schizophrenia and other mental disorders.

Results appear online in Schizophrenia Bulletin.

Going back to 2004, work by scientists at the Mailman School suggested a connection between prenatal lead exposure in humans and increased risk for schizophrenia later in life.

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