Researchers have used a gene chip to identify SNPs associated with bipolar disorder in American, British, and Irish patients. They identified two genes, both involved in ion channels. Nick Craddock, who led the Nature Genetics study, told the New York Times that the genes are probably only involved in a few bipolar cases and with modest effect.

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Vivek Murthy is no longer the surgeon general of the US, the Associated Press reports.

People around the globe took to the streets to support science — some with signs.

Parents who learn of their increased genetic risk of disease also contend with telling their children about theirs, the New York Times writes.

In PLOS this week: loci linked to body mass index measurements, long non-coding RNA expression and urothelial carcinoma prognosis, and more.