Letters Bipolar disorder

The genetics of bipolar disorder

BMJ 2013; 346 doi: http://dx.doi.org/10.1136/bmj.f530 (Published 07 February 2013) Cite this as: BMJ 2013;346:f530
  1. Frances S Price, medical student1,
  2. James A Morris, consultant pathologist and associate director of undergraduate medical education2
  1. 1Faculty of Health and Medicine, Lancaster University, Lancaster, UK
  2. 2University Hospitals of Morecambe Bay NHS Foundation Trust, Royal Lancaster Infirmary, Lancaster LA1 4RP, UK
  1. Jim.A.Morris{at}mbht.nhs.uk

Anderson and colleagues state that “Bipolar I disorder has a heritability of 0.75 explained largely by common variant alleles, which partly overlap with those for schizophrenia.”1 In fact, very little of the heritability …

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