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. He adds, however, that identifying involved genes will help elucidate the pathways involved in bipolar disorder.
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