Family study emphasizes distinct origins for bipolar disorder subtypes

(Elsevier) The most common subtypes of bipolar disorder, bipolar I and bipolar II, stem -- at least in part -- from different biological causes, according to a new study published in Biological Psychiatry. Despite genetic overlap between the two subtypes, each subtype tended to cluster within families, suggesting a distinction between bipolar disorders I and II.
Source: EurekAlert! - Social and Behavioral Science - Category: International Medicine & Public Health Source Type: news