Predictors of Suicidal Behavior Found in Blood

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Changes in gene expression can indicate heightened risk for self-harm.

People who are intent on taking their own life may not seek counsel or discuss their thoughts with others. Having some ways of predicting the rise of suicidal thoughts could help save at least some of the 1 million people worldwide who die that way every year.

“It’s a preventable tragedy,” says Alexander Niculescu, a psychiatrist at Indiana University in Indianapolis who is looking for biological signs of suicide risk.

Because of the brain’s complexity and inaccessibility, the search for predictors of suicide risk has instead focused on molecular signs, or biomarkers. These biomarkers help to indicate which people are at even higher risk. Niculescu and his colleagues have found six such biomarkers in blood that they say can identify people at risk of committing suicide.

by Brian Owens, Nature

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