Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

Intracranial volume reflects the maximally attained brain size during development, and remains stable with loss of tissue in late life. It is highly heritable, but the underlying genes remain largely undetermined. In a genome-wide association study of 32,438 adults, we discovered five previously unknown loci for intracranial volume and confirmed two known signals. Four of the loci were also associated with adult human stature, but these remained associated with intracranial volume after adjusting for height. We found a high genetic correlation with child head circumference (ρgenetic = 0.748), which indicates a similar genetic background and allowed us to identify four additional loci through meta-analysis (Ncombined = 37,345). Variants for intracranial volume were also related to childhood and adult cognitive function, and Parkinson's disease, and were enriched near genes involved in growth pathways, including PI3K-AKT signaling. These findings identify the biological underpinnings of intracranial volume and their link to physiological and pathological traits.

Original publication

DOI

10.1038/nn.4398

Type

Journal article

Journal

Nat Neurosci

Publication Date

12/2016

Volume

19

Pages

1569 - 1582

Keywords

Brain, Cognition, European Continental Ancestry Group, Genetic Loci, Genetic Predisposition to Disease, Genome-Wide Association Study, Humans, Oncogene Protein v-akt, Parkinson Disease, Phenotype, Phosphatidylinositol 3-Kinases, Polymorphism, Single Nucleotide