Projects per year
Abstract
Methods and FindingsUsing family-based mixed-model analyses, we examined the contribution of genetics and shared family environment to chronic pain by spouse, sibling and household relationships. These analyses were conducted in GS:SFHS (N=23,960), a family- and population-based study of individuals recruited from the Scottish population through their General Practitioners. We then examined and partitioned the correlation between chronic pain and MDD and estimated the contribution of genetic factors and shared environment in GS:SFHS. Finally, we used data from two independent genome-wide association studies to test whether chronic pain has a polygenic architecture and examine whether genomic risk of psychiatric disorder predicted chronic pain and whether genomic risk of chronic pain predicted MDD. These analyses were conducted in GS:SFHS and repeated in UK Biobank, a study of 0.5M from the UK population of whom 112,151 had genotyping and phenotypic data. Chronic pain is a moderately heritable trait (heritability = 38.4%, 95%CI 33.6% to 43.9%) which is significantly concordant in spouses (variance explained 18.7%, 95%CI 9.5% to 25.1%). Chronic pain is positively correlated with depression (rho = 0.13, 95%CI 0.11 to 0.15, p = 2.72x10-68) and it shows a tendency to cluster within families for genetic reasons (genetic correlation rho = 0.51, 95%CI 0.40 to 0.62, p = 8.24x10-19). Polygenic risk profiles for pain, generated using independent GWAS data, were associated with chronic pain in both GS:SFHS (maximum = 6.18x10-2, 95%CI 2.84 x10-2 to 9.35 x10-2, p = 4.3x10-4) and UK Biobank (maximum = 5.68 x 10-2, 95%CI 4.70x10-2 to 6.65x10-2, p < 3x10-4). Genomic risk of MDD is also significantly associated with chronic pain in both GS:SFHS (maximum = 6.62x10-2, 95%CI 2.82 x10-2 to 9.76 x10-2, p = 4.3x10-4) and UK Biobank (maximum = 2.56x10-2, 95%CI 1.62x10-2 to 3.63x10-2, p < 3x10-4). Limitations of the current study include the possibility that spouse effects may be due to assortative mating and the relatively small polygenic risk score effect sizes.
ConclusionsGenetic factors and chronic pain in a partner or spouse contribute substantially to the risk of chronic pain in the general population. Chronic pain is genetically correlated with MDD, has a polygenic architecture and is associated with polygenic risk of MDD.
Original language | English |
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Article number | e1002090 |
Journal | PLoS Medicine |
Volume | 13 |
Issue number | 8 |
DOIs | |
Publication status | Published - 16 Aug 2016 |
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Dive into the research topics of 'Genetic and environmental risk for chronic pain and the contribution of risk variants for major depressive disorder: a family-based mixed-model analysis'. 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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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
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Generation Scotland
Porteous, D. (Principal Investigator)
UK central government bodies/local authorities, health and hospital authorities
1/04/11 → 31/03/14
Project: Research
Profiles
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Andrew McIntosh
- Deanery of Clinical Sciences - Chair of Biological Psychiatry
- Centre for Clinical Brain Sciences
- Edinburgh Neuroscience
Person: Academic: Research Active