Scientists discover 17 genetic variations that raise risk of depression

"Research involved 300,000 people of European ancestry and could lead to better understanding of the condition. Both environmental and genetic factors are thought to be behind depression, with the interaction between the two also thought to be important. But with a large number of genetic variants each thought to make a tiny contribution to the risk of developing the condition, unravelling their identity has proved challenging.

But now researchers in the US say they have identified 17 genetic variations associated with the condition in Europeans, spread across 15 regions of the genome."


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