Projects per year
Abstract
The highly complex structure of the human brain is strongly shaped by genetic influences1. Subcortical brain regions form circuits with cortical areas to coordinate movement2, learning, memory3 and motivation4, and altered circuits can lead to abnormal behaviour and disease2. To investigate how common genetic variants affect the structure of these brain regions, here we conduct genome-wide association studies of the volumes of seven subcortical regions and the intracranial volume derived from magnetic resonance images of 30,717 individuals from 50 cohorts. We identify five novel genetic variants influencing the volumes of the putamen and caudate nucleus. We also find stronger evidence for three loci with previously established influences on hippocampal volume5 and intracranial volume6. These variants show specific volumetric effects on brain structures rather than global effects across structures. The strongest effects were found for the putamen, where a novel intergenic locus with replicable influence on volume (rs945270; P = 1.08 × 10−33; 0.52% variance explained) showed evidence of altering the expression of the KTN1 gene in both brain and blood tissue. Variants influencing putamen volume clustered near developmental genes that regulate apoptosis, axon guidance and vesicle transport. Identification of these genetic variants provides insight into the causes of variability in human brain development, and may help to determine mechanisms of neuropsychiatric dysfunction.
Original language | English |
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Pages (from-to) | 224-229 |
Number of pages | 6 |
Journal | Nature |
Volume | 520 |
Issue number | 7546 |
Early online date | 21 Jan 2015 |
DOIs | |
Publication status | Published - 9 Apr 2015 |
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Dive into the research topics of 'Common genetic variants influence human subcortical brain structures'. Together they form a unique fingerprint.Projects
- 11 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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Centre for Cognitive Ageing and Cognitive Epidemiology Phase 2.
Maclullich, A. (Principal Investigator)
1/09/13 → 31/08/19
Project: Research
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RA2661 Centre for Cognitive Ageing and Cognitive Epidemiology Phase 2. Main Budget.
Deary, I. (Principal Investigator), Gale, C. (Co-investigator), Holmes, M. (Co-investigator), Logie, P. (Co-investigator), Maclullich, A. (Co-investigator), Porteous, D. (Co-investigator), Seckl, J. (Co-investigator), Starr, J. (Co-investigator), Wardlaw, J. (Co-investigator) & Okely, J. (Researcher)
1/09/13 → 31/08/19
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