Abstract
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 language | English |
|---|---|
| Pages (from-to) | 1569–1582 |
| Number of pages | 14 |
| Journal | Nature Neuroscience |
| Volume | 19 |
| Issue number | 12 |
| Early online date | 3 Oct 2016 |
| DOIs | |
| Publication status | Published - 31 Dec 2016 |
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Dive into the research topics of 'Novel genetic loci underlying human intracranial volume identified through genome-wide association'. Together they form a unique fingerprint.Projects
- 4 Finished
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Stratifying Resilience and Depression Longitudinally
McIntosh, A. (Principal Investigator), Deary, I. (Co-investigator), Evans, K. (Co-investigator), Haley, C. (Co-investigator) & Porteous, D. (Co-investigator)
1/01/15 → 30/06/21
Project: Research
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IMAGEMEND: IMAGEMEND IMAging GEnetics for MENtal Disorders - Other and MGT
McIntosh, A. (Principal Investigator)
1/10/13 → 30/09/17
Project: Research
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IMAGEMEND: IMAGEMEND IMAging GEnetics for MENtal Disorders - RTD
McIntosh, A. (Principal Investigator)
1/10/13 → 30/09/17
Project: Research
Profiles
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Michelle Luciano
- School of Philosophy, Psychology and Language Sciences - Personal Chair of Behavioural Genetics
- Edinburgh Neuroscience
Person: Academic: Research Active
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