Title |
Genome–wide association study for risk taking propensity indicates shared pathways with body mass index
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Published in |
Communications Biology, May 2018
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DOI | 10.1038/s42003-018-0042-6 |
Pubmed ID | |
Authors |
Emma A. D. Clifton, John R. B. Perry, Fumiaki Imamura, Luca A. Lotta, Soren Brage, Nita G. Forouhi, Simon J. Griffin, Nicholas J. Wareham, Ken K. Ong, Felix R. Day |
Abstract |
Risk-taking propensity is a trait of significant public health relevance but few specific genetic factors are known. Here we perform a genome-wide association study of self-reported risk-taking propensity among 436,236 white European UK Biobank study participants. We identify genome-wide associations at 26 loci (P < 5 × 10-8), 24 of which are novel, implicating genes enriched in the GABA and GABA receptor pathways. Modelling the relationship between risk-taking propensity and body mass index (BMI) using Mendelian randomisation shows a positive association (0.25 approximate SDs of BMI (SE: 0.06); P = 6.7 × 10-5). The impact of individual SNPs is heterogeneous, indicating a complex relationship arising from multiple shared pathways. We identify positive genetic correlations between risk-taking and waist-hip ratio, childhood obesity, ever smoking, attention-deficit hyperactivity disorder, bipolar disorder and schizophrenia, alongside a negative correlation with women's age at first birth. These findings highlight that behavioural pathways involved in risk-taking propensity may play a role in obesity, smoking and psychiatric disorders. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 3 | 15% |
Canada | 3 | 15% |
Mexico | 2 | 10% |
Japan | 1 | 5% |
Germany | 1 | 5% |
United Kingdom | 1 | 5% |
Unknown | 9 | 45% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 9 | 45% |
Scientists | 7 | 35% |
Science communicators (journalists, bloggers, editors) | 3 | 15% |
Practitioners (doctors, other healthcare professionals) | 1 | 5% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 104 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 18 | 17% |
Student > Ph. D. Student | 14 | 13% |
Student > Master | 9 | 9% |
Student > Bachelor | 9 | 9% |
Student > Doctoral Student | 7 | 7% |
Other | 17 | 16% |
Unknown | 30 | 29% |
Readers by discipline | Count | As % |
---|---|---|
Psychology | 16 | 15% |
Medicine and Dentistry | 13 | 13% |
Biochemistry, Genetics and Molecular Biology | 12 | 12% |
Neuroscience | 4 | 4% |
Social Sciences | 4 | 4% |
Other | 16 | 15% |
Unknown | 39 | 38% |