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Ward J, Lyall LM, Cullen B, Strawbridge RJ, Zhu X, Stanciu I, Aman A, Niedzwiedz CL, Anderson J, Bailey MES, Lyall DM, Pell JP. Consistent effects of the genetics of happiness across the lifespan and ancestries in multiple cohorts. Sci Rep 2023; 13:17262. [PMID: 37828061 PMCID: PMC10570373 DOI: 10.1038/s41598-023-43193-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 09/20/2023] [Indexed: 10/14/2023] Open
Abstract
Happiness is a fundamental human affective trait, but its biological basis is not well understood. Using a novel approach, we construct LDpred-inf polygenic scores of a general happiness measure in 2 cohorts: the Adolescent Brain Cognitive Development (ABCD) cohort (N = 15,924, age range 9.23-11.8 years), the Add Health cohort (N = 9129, age range 24.5-34.7) to determine associations with several well-being and happiness measures. Additionally, we investigated associations between genetic scores for happiness and brain structure in ABCD (N = 9626, age range (8.9-11) and UK Biobank (N = 16,957, age range 45-83). We detected significant (p.FDR < 0.05) associations between higher genetic scores vs. several well-being measures (best r2 = 0.019) in children of multiple ancestries in ABCD and small yet significant correlations with a happiness measure in European participants in Add Health (r2 = 0.004). Additionally, we show significant associations between lower genetic scores for happiness with smaller structural brain phenotypes in a white British subsample of UK Biobank and a white sub-sample group of ABCD. We demonstrate that the genetic basis for general happiness level appears to have a consistent effect on happiness and wellbeing measures throughout the lifespan, across multiple ancestral backgrounds, and multiple brain structures.
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Affiliation(s)
- Joey Ward
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK.
| | - Laura M Lyall
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Breda Cullen
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Rona J Strawbridge
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
- Cardiovascular Medicine Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Health Data Research UK, Glasgow, UK
| | - Xingxing Zhu
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Ioana Stanciu
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Alisha Aman
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Claire L Niedzwiedz
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Jana Anderson
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Mark E S Bailey
- School of Life Sciences, University of Glasgow, Glasgow, Scotland, UK
| | - Donald M Lyall
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Jill P Pell
- School of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
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Cullen B, Gameroff MJ, Ward J, Bailey MES, Lyall DM, Lyall LM, MacSweeney N, Murphy E, Sangha N, Shen X, Strawbridge RJ, van Dijk MT, Zhu X, Smith DJ, Talati A, Whalley HC, Cavanagh J, Weissman MM. Cognitive Function in People With Familial Risk of Depression. JAMA Psychiatry 2023; 80:610-620. [PMID: 37074691 PMCID: PMC10116387 DOI: 10.1001/jamapsychiatry.2023.0716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 02/16/2023] [Indexed: 04/20/2023]
Abstract
Importance Cognitive impairment in depression is poorly understood. Family history of depression is a potentially useful risk marker for cognitive impairment, facilitating early identification and targeted intervention in those at highest risk, even if they do not themselves have depression. Several research cohorts have emerged recently that enable findings to be compared according to varying depths of family history phenotyping, in some cases also with genetic data, across the life span. Objective To investigate associations between familial risk of depression and cognitive performance in 4 independent cohorts with varied depth of assessment, using both family history and genetic risk measures. Design, Setting, and Participants This study used data from the Three Generations at High and Low Risk of Depression Followed Longitudinally (TGS) family study (data collected from 1982 to 2015) and 3 large population cohorts, including the Adolescent Brain Cognitive Development (ABCD) study (data collected from 2016 to 2021), National Longitudinal Study of Adolescent to Adult Health (Add Health; data collected from 1994 to 2018), and UK Biobank (data collected from 2006 to 2022). Children and adults with or without familial risk of depression were included. Cross-sectional analyses were conducted from March to June 2022. Exposures Family history (across 1 or 2 prior generations) and polygenic risk of depression. Main Outcomes and Measures Neurocognitive tests at follow-up. Regression models were adjusted for confounders and corrected for multiple comparisons. Results A total of 57 308 participants were studied, including 87 from TGS (42 [48%] female; mean [SD] age, 19.7 [6.6] years), 10 258 from ABCD (4899 [48%] female; mean [SD] age, 12.0 [0.7] years), 1064 from Add Health (584 [49%] female; mean [SD] age, 37.8 [1.9] years), and 45 899 from UK Biobank (23 605 [51%] female; mean [SD] age, 64.0 [7.7] years). In the younger cohorts (TGS, ABCD, and Add Health), family history of depression was primarily associated with lower performance in the memory domain, and there were indications that this may be partly associated with educational and socioeconomic factors. In the older UK Biobank cohort, there were associations with processing speed, attention, and executive function, with little evidence of education or socioeconomic influences. These associations were evident even in participants who had never been depressed themselves. Effect sizes between familial risk of depression and neurocognitive test performance were largest in TGS; the largest standardized mean differences in primary analyses were -0.55 (95% CI, -1.49 to 0.38) in TGS, -0.09 (95% CI, -0.15 to -0.03) in ABCD, -0.16 (95% CI, -0.31 to -0.01) in Add Health, and -0.10 (95% CI, -0.13 to -0.06) in UK Biobank. Results were generally similar in the polygenic risk score analyses. In UK Biobank, several tasks showed statistically significant associations in the polygenic risk score analysis that were not evident in the family history models. Conclusions and Relevance In this study, whether assessed by family history or genetic data, depression in prior generations was associated with lower cognitive performance in offspring. There are opportunities to generate hypotheses about how this arises through genetic and environmental determinants, moderators of brain development and brain aging, and potentially modifiable social and lifestyle factors across the life span.
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Affiliation(s)
- Breda Cullen
- School of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
| | - Marc J. Gameroff
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York
- Division of Translational Epidemiology, New York State Psychiatric Institute, New York
| | - Joey Ward
- School of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
| | - Mark E. S. Bailey
- School of Molecular Biosciences, University of Glasgow, Glasgow, United Kingdom
| | - Donald M. Lyall
- School of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
| | - Laura M. Lyall
- School of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
| | - Niamh MacSweeney
- Division of Psychiatry, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Eleanor Murphy
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York
- Division of Translational Epidemiology, New York State Psychiatric Institute, New York
| | - Natasha Sangha
- School of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
| | - Xueyi Shen
- Division of Psychiatry, University of Edinburgh, Edinburgh, United Kingdom
| | - Rona J. Strawbridge
- School of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
- Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Milenna T. van Dijk
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York
- Division of Translational Epidemiology, New York State Psychiatric Institute, New York
| | - Xingxing Zhu
- School of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
| | - Daniel J. Smith
- Division of Psychiatry, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Ardesheer Talati
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York
- Division of Translational Epidemiology, New York State Psychiatric Institute, New York
| | - Heather C. Whalley
- Division of Psychiatry, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Jonathan Cavanagh
- School of Infection and Immunity, University of Glasgow, Glasgow, United Kingdom
| | - Myrna M. Weissman
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York
- Division of Translational Epidemiology, New York State Psychiatric Institute, New York
- Mailman School of Public Health, Columbia University, New York, New York
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Lyall DM, Quinn T, Lyall LM, Ward J, Anderson JJ, Smith DJ, Stewart W, Strawbridge RJ, Bailey MES, Cullen B. Quantifying bias in psychological and physical health in the UK Biobank imaging sub-sample. Brain Commun 2022; 4:fcac119. [PMID: 35651593 PMCID: PMC9150072 DOI: 10.1093/braincomms/fcac119] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/01/2022] [Accepted: 05/06/2022] [Indexed: 11/12/2022] Open
Abstract
UK Biobank is a prospective cohort study of around half-a-million general population participants, recruited between 2006 and 2010, with baseline studies at recruitment and multiple assessments since. From 2014 to date, magnetic resonance imaging (MRI) has been pursued in a participant sub-sample, with the aim to scan around n = 100k. This sub-sample is studied widely and therefore understanding its relative characteristics is important for future reports. We aimed to quantify psychological and physical health in the UK Biobank imaging sub-sample, compared with the rest of the cohort. We used t-tests and χ2 for continuous/categorical variables, respectively, to estimate average differences on a range of cognitive, mental and physical health phenotypes. We contrasted baseline values of participants who attended imaging (versus had not), and compared their values at the imaging visit versus baseline values of participants who were not scanned. We also tested the hypothesis that the associations of established risk factors with worse cognition would be underestimated in the (hypothesized) healthier imaging group compared with the full cohort. We tested these interactions using linear regression models. On a range of cognitive, mental health, cardiometabolic, inflammatory and neurological phenotypes, we found that 47 920 participants who were scanned by January 2021 showed consistent statistically significant 'healthy' bias compared with the ∼450 000 who were not scanned. These effect sizes were small to moderate based on Cohen's d/Cramer's V metrics (range = 0.02 to -0.21 for Townsend, the largest effect size). We found evidence of interaction, where stratified analysis demonstrated that associations of established cognitive risk factors were smaller in the imaging sub-sample compared with the full cohort. Of the ∼100 000 participants who ultimately will undergo MRI assessment within UK Biobank, the first ∼50 000 showed some 'healthy' bias on a range of metrics at baseline. Those differences largely remained at the subsequent (first) imaging visit, and we provide evidence that testing associations in the imaging sub-sample alone could lead to potential underestimation of exposure/outcome estimates.
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Affiliation(s)
- Donald M. Lyall
- Institute of Health and Wellbeing, University of
Glasgow, 1 Lilybank Gardens, Scotland G12 8RZ, UK
| | - Terry Quinn
- Institute of Cardiovascular and Medical Sciences,
University of Glasgow, Scotland, UK
| | - Laura M. Lyall
- Institute of Health and Wellbeing, University of
Glasgow, 1 Lilybank Gardens, Scotland G12 8RZ, UK
| | - Joey Ward
- Institute of Health and Wellbeing, University of
Glasgow, 1 Lilybank Gardens, Scotland G12 8RZ, UK
| | - Jana J. Anderson
- Institute of Health and Wellbeing, University of
Glasgow, 1 Lilybank Gardens, Scotland G12 8RZ, UK
| | - Daniel J. Smith
- Division of Psychiatry, University of
Edinburgh, Edinburgh, Scotland, UK
| | - William Stewart
- Department of Neuropathology, Queen Elizabeth
University Hospital, Scotland, UK
| | - Rona J. Strawbridge
- Institute of Health and Wellbeing, University of
Glasgow, 1 Lilybank Gardens, Scotland G12 8RZ, UK
- Cardiovascular Medicine Unit, Department of Medicine
Solna, Karolinska Institutet, Stockholm, Sweden
| | - Mark E. S. Bailey
- School of Life Sciences, College of Medical,
Veterinary and Life Sciences, University of Glasgow, Glasgow,
Scotland, UK
| | - Breda Cullen
- Institute of Health and Wellbeing, University of
Glasgow, 1 Lilybank Gardens, Scotland G12 8RZ, UK
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Rendón-Anaya M, Wilson J, Sveinsson S, Fedorkov A, Cottrell J, Bailey MES, Ruņǵis D, Lexer C, Jansson S, Robinson KM, Street NR, Ingvarsson PK. Erratum to: Adaptive Introgression Facilitates Adaptation to High Latitudes in European Aspen (Populus Tremula L.). Mol Biol Evol 2022; 39:6515591. [PMID: 35080245 PMCID: PMC8790632 DOI: 10.1093/molbev/msac003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Tank R, Ward J, Flegal KE, Smith DJ, Bailey MES, Cavanagh J, Lyall DM. Association between polygenic risk for Alzheimer's disease, brain structure and cognitive abilities in UK Biobank. Neuropsychopharmacology 2022; 47:564-569. [PMID: 34621014 PMCID: PMC8674313 DOI: 10.1038/s41386-021-01190-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 08/05/2021] [Accepted: 09/14/2021] [Indexed: 02/07/2023]
Abstract
Previous studies testing associations between polygenic risk for late-onset Alzheimer's disease (LOAD-PGR) and brain magnetic resonance imaging (MRI) measures have been limited by small samples and inconsistent consideration of potential confounders. This study investigates whether higher LOAD-PGR is associated with differences in structural brain imaging and cognitive values in a relatively large sample of non-demented, generally healthy adults (UK Biobank). Summary statistics were used to create PGR scores for n = 32,790 participants using LDpred. Outcomes included 12 structural MRI volumes and 6 concurrent cognitive measures. Models were adjusted for age, sex, body mass index, genotyping chip, 8 genetic principal components, lifetime smoking, apolipoprotein (APOE) e4 genotype and socioeconomic deprivation. We tested for statistical interactions between APOE e4 allele dose and LOAD-PGR vs. all outcomes. In fully adjusted models, LOAD-PGR was associated with worse fluid intelligence (standardised beta [β] = -0.080 per LOAD-PGR standard deviation, p = 0.002), matrix completion (β = -0.102, p = 0.003), smaller left hippocampal total (β = -0.118, p = 0.002) and body (β = -0.069, p = 0.002) volumes, but not other hippocampal subdivisions. There were no significant APOE x LOAD-PGR score interactions for any outcomes in fully adjusted models. This is the largest study to date investigating LOAD-PGR and non-demented structural brain MRI and cognition phenotypes. LOAD-PGR was associated with smaller hippocampal volumes and aspects of cognitive ability in healthy adults and could supplement APOE status in risk stratification of cognitive impairment/LOAD.
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Affiliation(s)
- Rachana Tank
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Kristin E Flegal
- Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, UK
| | - Daniel J Smith
- Centre for Clinical Brain Sciences, Division of Psychiatry, University of Edinburgh, Edinburgh, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Jonathan Cavanagh
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, UK
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK.
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Rendón-Anaya M, Wilson J, Sveinsson S, Fedorkov A, Cottrell J, Bailey MES, Ruņģis D, Lexer C, Jansson S, Robinson KM, Street NR, Ingvarsson PK. Adaptive introgression facilitate adaptation to high latitudes in European aspen (Populus tremula L.). Mol Biol Evol 2021; 38:5034-5050. [PMID: 34329481 PMCID: PMC8557470 DOI: 10.1093/molbev/msab229] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Understanding local adaptation has become a key research area given the ongoing climate challenge and the concomitant requirement to conserve genetic resources. Perennial plants, such as forest trees, are good models to study local adaptation given their wide geographic distribution, largely outcrossing mating systems, and demographic histories. We evaluated signatures of local adaptation in European aspen (Populus tremula) across Europe by means of whole-genome resequencing of a collection of 411 individual trees. We dissected admixture patterns between aspen lineages and observed a strong genomic mosaicism in Scandinavian trees, evidencing different colonization trajectories into the peninsula from Russia, Central and Western Europe. As a consequence of the secondary contacts between populations after the last glacial maximum, we detected an adaptive introgression event in a genome region of ∼500 kb in chromosome 10, harboring a large-effect locus that has previously been shown to contribute to adaptation to the short growing seasons characteristic of Northern Scandinavia. Demographic simulations and ancestry inference suggest an Eastern origin—probably Russian—of the adaptive Nordic allele which nowadays is present in a homozygous state at the north of Scandinavia. The strength of introgression and positive selection signatures in this region is a unique feature in the genome. Furthermore, we detected signals of balancing selection, shared across regional populations, that highlight the importance of standing variation as a primary source of alleles that facilitate local adaptation. Our results, therefore, emphasize the importance of migration–selection balance underlying the genetic architecture of key adaptive quantitative traits.
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Affiliation(s)
- Martha Rendón-Anaya
- Linnean Centre for Plant Biology, Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Science, Uppsala, Sweden
| | - Jonathan Wilson
- Linnean Centre for Plant Biology, Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Science, Uppsala, Sweden
| | | | - Aleksey Fedorkov
- Institute of Biology, Komi Science Center, Russian Academy of Sciences, Syktyvkar, Russia
| | - Joan Cottrell
- Forest Research, Northern Research Station, Roslin, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Dainis Ruņģis
- Genetic Resource Centre, Latvian State Forest Research Institute "Silava", LV2169 Salaspils, Latvia
| | - Christian Lexer
- Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
| | - Stefan Jansson
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, Umeå, Sweden
| | - Kathryn M Robinson
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, Umeå, Sweden
| | - Nathaniel R Street
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, Umeå, Sweden
| | - Pär K Ingvarsson
- Linnean Centre for Plant Biology, Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Science, Uppsala, Sweden
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Johnston KJA, Ward J, Ray PR, Adams MJ, McIntosh AM, Smith BH, Strawbridge RJ, Price TJ, Smith DJ, Nicholl BI, Bailey MES. Sex-stratified genome-wide association study of multisite chronic pain in UK Biobank. PLoS Genet 2021; 17:e1009428. [PMID: 33830993 PMCID: PMC8031124 DOI: 10.1371/journal.pgen.1009428] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 02/16/2021] [Indexed: 12/30/2022] Open
Abstract
Chronic pain is highly prevalent worldwide and imparts a significant socioeconomic and public health burden. Factors influencing susceptibility to, and mechanisms of, chronic pain development, are not fully understood, but sex is thought to play a significant role, and chronic pain is more prevalent in women than in men. To investigate sex differences in chronic pain, we carried out a sex-stratified genome-wide association study of Multisite Chronic Pain (MCP), a derived chronic pain phenotype, in UK Biobank on 178,556 men and 209,093 women, as well as investigating sex-specific genetic correlations with a range of psychiatric, autoimmune and anthropometric phenotypes and the relationship between sex-specific polygenic risk scores for MCP and chronic widespread pain. We also assessed whether MCP-associated genes showed expression pattern enrichment across tissues. A total of 123 SNPs at five independent loci were significantly associated with MCP in men. In women, a total of 286 genome-wide significant SNPs at ten independent loci were discovered. Meta-analysis of sex-stratified GWAS outputs revealed a further 87 independent associated SNPs. Gene-level analyses revealed sex-specific MCP associations, with 31 genes significantly associated in females, 37 genes associated in males, and a single gene, DCC, associated in both sexes. We found evidence for sex-specific pleiotropy and risk for MCP was found to be associated with chronic widespread pain in a sex-differential manner. Male and female MCP were highly genetically correlated, but at an rg of significantly less than 1 (0.92). All 37 male MCP-associated genes and all but one of 31 female MCP-associated genes were found to be expressed in the dorsal root ganglion, and there was a degree of enrichment for expression in sex-specific tissues. Overall, the findings indicate that sex differences in chronic pain exist at the SNP, gene and transcript abundance level, and highlight possible sex-specific pleiotropy for MCP. Results support the proposition of a strong central nervous-system component to chronic pain in both sexes, additionally highlighting a potential role for the DRG and nociception.
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Affiliation(s)
- Keira J. A. Johnston
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, United Kingdom
- Division of Psychiatry, University of Edinburgh, Edinburgh, Scotland, United Kingdom
- School of Life Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Pradipta R. Ray
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, Texas, United States of America
| | - Mark J. Adams
- Division of Psychiatry, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Andrew M. McIntosh
- Division of Psychiatry, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Blair H. Smith
- Division of Population Health Sciences, University of Dundee, Ninewells Hospital and Medical School, Dundee, Scotland, United Kingdom
| | - Rona J. Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, United Kingdom
- Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Theodore J. Price
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, Texas, United States of America
| | - Daniel J. Smith
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Barbara I. Nicholl
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Mark E. S. Bailey
- School of Life Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland, United Kingdom
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8
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Strawbridge RJ, Johnston KJA, Bailey MES, Baldassarre D, Cullen B, Eriksson P, deFaire U, Ferguson A, Gigante B, Giral P, Graham N, Hamsten A, Humphries SE, Kurl S, Lyall DM, Lyall LM, Pell JP, Pirro M, Savonen K, Smit AJ, Tremoli E, Tomainen TP, Veglia F, Ward J, Sennblad B, Smith DJ. The overlap of genetic susceptibility to schizophrenia and cardiometabolic disease can be used to identify metabolically different groups of individuals. Sci Rep 2021; 11:632. [PMID: 33436761 PMCID: PMC7804422 DOI: 10.1038/s41598-020-79964-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 12/11/2020] [Indexed: 12/01/2022] Open
Abstract
Understanding why individuals with severe mental illness (Schizophrenia, Bipolar Disorder and Major Depressive Disorder) have increased risk of cardiometabolic disease (including obesity, type 2 diabetes and cardiovascular disease), and identifying those at highest risk of cardiometabolic disease are important priority areas for researchers. For individuals with European ancestry we explored whether genetic variation could identify sub-groups with different metabolic profiles. Loci associated with schizophrenia, bipolar disorder and major depressive disorder from previous genome-wide association studies and loci that were also implicated in cardiometabolic processes and diseases were selected. In the IMPROVE study (a high cardiovascular risk sample) and UK Biobank (general population sample) multidimensional scaling was applied to genetic variants implicated in both psychiatric and cardiometabolic disorders. Visual inspection of the resulting plots used to identify distinct clusters. Differences between these clusters were assessed using chi-squared and Kruskall-Wallis tests. In IMPROVE, genetic loci associated with both schizophrenia and cardiometabolic disease (but not bipolar disorder or major depressive disorder) identified three groups of individuals with distinct metabolic profiles. This grouping was replicated within UK Biobank, with somewhat less distinction between metabolic profiles. This work focused on individuals of European ancestry and is unlikely to apply to more genetically diverse populations. Overall, this study provides proof of concept that common biology underlying mental and physical illness may help to stratify subsets of individuals with different cardiometabolic profiles.
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Affiliation(s)
- Rona J Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK. .,Health Data Research, London, UK. .,Cardiovascular Medicine Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden.
| | - Keira J A Johnston
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK.,Deanery of Molecular, Genetic and Population Health Sciences, College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh, Scotland, UK.,School of Life Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland, UK
| | - Damiano Baldassarre
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy.,Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Breda Cullen
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Per Eriksson
- Cardiovascular Medicine Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Ulf deFaire
- Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Amy Ferguson
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK.,Usher Institute, University of Edinburgh, Edinburgh, UK
| | - Bruna Gigante
- Cardiovascular Medicine Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Philippe Giral
- Service Endocrinologie-Metabolisme, Groupe Hôpitalier Pitie-Salpetriere, Unités de Prévention Cardiovasculaire, Assistance Publique - Hopitaux de Paris, Paris, France
| | - Nicholas Graham
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Anders Hamsten
- Cardiovascular Medicine Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Steve E Humphries
- Centre for Cardiovascular Genetics, Institute Cardiovascular Science, University College London, London, UK
| | - Sudhir Kurl
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Laura M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Matteo Pirro
- Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy
| | - Kai Savonen
- Foundation for Research in Health Exercise and Nutrition, Kuopio Research Institute of Exercise Medicine, Kuopio, Finland.,Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Andries J Smit
- Department of Medicine, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands
| | | | - Tomi-Pekka Tomainen
- Public Health and Clinical Nutrition, Department of Medicine, University of Eastern Finland, Kupiou, Finland
| | | | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
| | - Bengt Sennblad
- Department of Cell and Molecular Biology, National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Room 111, Public Health, 1 Lilybank Gardens, Glasgow, G12 8RZ, UK
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9
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Mähler N, Schiffthaler B, Robinson KM, Terebieniec BK, Vučak M, Mannapperuma C, Bailey MES, Jansson S, Hvidsten TR, Street NR. Leaf shape in Populus tremula is a complex, omnigenic trait. Ecol Evol 2020; 10:11922-11940. [PMID: 33209260 PMCID: PMC7663049 DOI: 10.1002/ece3.6691] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/26/2020] [Accepted: 07/08/2020] [Indexed: 01/10/2023] Open
Abstract
Leaf shape is a defining feature of how we recognize and classify plant species. Although there is extensive variation in leaf shape within many species, few studies have disentangled the underlying genetic architecture. We characterized the genetic architecture of leaf shape variation in Eurasian aspen (Populus tremula L.) by performing genome-wide association study (GWAS) for physiognomy traits. To ascertain the roles of identified GWAS candidate genes within the leaf development transcriptional program, we generated RNA-Seq data that we used to perform gene co-expression network analyses from a developmental series, which is publicly available within the PlantGenIE resource. We additionally used existing gene expression measurements across the population to analyze GWAS candidate genes in the context of a population-wide co-expression network and to identify genes that were differentially expressed between groups of individuals with contrasting leaf shapes. These data were integrated with expression GWAS (eQTL) results to define a set of candidate genes associated with leaf shape variation. Our results identified no clear adaptive link to leaf shape variation and indicate that leaf shape traits are genetically complex, likely determined by numerous small-effect variations in gene expression. Genes associated with shape variation were peripheral within the population-wide co-expression network, were not highly connected within the leaf development co-expression network, and exhibited signatures of relaxed selection. As such, our results are consistent with the omnigenic model.
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Affiliation(s)
- Niklas Mähler
- Department of Plant PhysiologyUmeå Plant Science CentreUmeå UniversityUmeåSweden
| | - Bastian Schiffthaler
- Department of Plant PhysiologyUmeå Plant Science CentreUmeå UniversityUmeåSweden
| | - Kathryn M. Robinson
- Department of Plant PhysiologyUmeå Plant Science CentreUmeå UniversityUmeåSweden
| | | | - Matej Vučak
- School of Life SciencesCollege of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowScotland
| | - Chanaka Mannapperuma
- Department of Plant PhysiologyUmeå Plant Science CentreUmeå UniversityUmeåSweden
| | - Mark E. S. Bailey
- School of Life SciencesCollege of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowScotland
| | - Stefan Jansson
- Department of Plant PhysiologyUmeå Plant Science CentreUmeå UniversityUmeåSweden
| | - Torgeir R. Hvidsten
- Faculty of Chemistry, Biotechnology and Food ScienceNorwegian University of Life SciencesÅsNorway
| | - Nathaniel R. Street
- Department of Plant PhysiologyUmeå Plant Science CentreUmeå UniversityUmeåSweden
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10
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Strawbridge RJ, Ward J, Bailey MES, Cullen B, Ferguson A, Graham N, Johnston KJA, Lyall LM, Pearsall R, Pell J, Shaw RJ, Tank R, Lyall DM, Smith DJ. Carotid Intima-Media Thickness: Novel Loci, Sex-Specific Effects, and Genetic Correlations With Obesity and Glucometabolic Traits in UK Biobank. Arterioscler Thromb Vasc Biol 2019; 40:446-461. [PMID: 31801372 PMCID: PMC6975521 DOI: 10.1161/atvbaha.119.313226] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Supplemental Digital Content is available in the text. Objective: Atherosclerosis is the underlying cause of most cardiovascular disease, but mechanisms underlying atherosclerosis are incompletely understood. Ultrasound measurement of the carotid intima-media thickness (cIMT) can be used to measure vascular remodeling, which is indicative of atherosclerosis. Genome-wide association studies have identified many genetic loci associated with cIMT, but heterogeneity of measurements collected by many small cohorts have been a major limitation in these efforts. Here, we conducted genome-wide association analyses in UKB (UK Biobank; N=22 179), the largest single study with consistent cIMT measurements. Approach and Results: We used BOLT-LMM software to run linear regression of cIMT in UKB, adjusted for age, sex, and genotyping chip. In white British participants, we identified 5 novel loci associated with cIMT and replicated most previously reported loci. In the first sex-specific analyses of cIMT, we identified a locus on chromosome 5, associated with cIMT in women only and highlight VCAN as a good candidate gene at this locus. Genetic correlations with body mass index and glucometabolic traits were also observed. Two loci influenced risk of ischemic heart disease. ConclusionS: These findings replicate previously reported associations, highlight novel biology, and provide new directions for investigating the sex differences observed in cardiovascular disease presentation and progression.
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Affiliation(s)
- Rona J Strawbridge
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Joey Ward
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences (M.E.S.B., K.J.A.J.), University of Glasgow, United Kingdom
| | - Breda Cullen
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Amy Ferguson
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Nicholas Graham
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Keira J A Johnston
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom.,School of Life Sciences, College of Medical, Veterinary and Life Sciences (M.E.S.B., K.J.A.J.), University of Glasgow, United Kingdom.,Division of Psychiatry, College of Medicine, University of Edinburgh, United Kingdom (K.J.A.J.)
| | - Laura M Lyall
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Robert Pearsall
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Jill Pell
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Richard J Shaw
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom.,Health Data Research United Kingdom (R.J.S.).,Cardiovascular Medicine Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden (R.J.S.)
| | - Rachana Tank
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Donald M Lyall
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
| | - Daniel J Smith
- From the Institute of Health and Wellbeing (R.J.S., J.W., B.C., A.F., N.G., K.J.A.J., L.M.L., R.P., J.P., R.J.S., R.T., D.M.L., D.J.S.), University of Glasgow, United Kingdom
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11
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Ward J, Lyall LM, Bethlehem RAI, Ferguson A, Strawbridge RJ, Lyall DM, Cullen B, Graham N, Johnston KJA, Bailey MES, Murray GK, Smith DJ. Novel genome-wide associations for anhedonia, genetic correlation with psychiatric disorders, and polygenic association with brain structure. Transl Psychiatry 2019; 9:327. [PMID: 31797917 PMCID: PMC6892870 DOI: 10.1038/s41398-019-0635-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 09/18/2019] [Accepted: 10/20/2019] [Indexed: 12/20/2022] Open
Abstract
Anhedonia is a core symptom of several psychiatric disorders but its biological underpinnings are poorly understood. We performed a genome-wide association study of state anhedonia in 375,275 UK Biobank participants and assessed for genetic correlation between anhedonia and neuropsychiatric conditions (major depressive disorder, schizophrenia, bipolar disorder, obsessive compulsive disorder and Parkinson's Disease). We then used a polygenic risk score approach to test for association between genetic loading for anhedonia and both brain structure and brain function. This included: magnetic resonance imaging (MRI) assessments of total grey matter volume, white matter volume, cerebrospinal fluid volume, and 15 cortical/subcortical regions of interest; diffusion tensor imaging (DTI) measures of white matter tract integrity; and functional MRI activity during an emotion processing task. We identified 11 novel loci associated at genome-wide significance with anhedonia, with a SNP heritability estimate (h2SNP) of 5.6%. Strong positive genetic correlations were found between anhedonia and major depressive disorder, schizophrenia and bipolar disorder; but not with obsessive compulsive disorder or Parkinson's Disease. Polygenic risk for anhedonia was associated with poorer brain white matter integrity, smaller total grey matter volume, and smaller volumes of brain regions linked to reward and pleasure processing, including orbito-frontal cortex. In summary, the identification of novel anhedonia-associated loci substantially expands our current understanding of the biological basis of state anhedonia and genetic correlations with several psychiatric disorders confirm the utility of this phenotype as a transdiagnostic marker of vulnerability to mental illness. We also provide the first evidence that genetic risk for state anhedonia influences brain structure, including in regions associated with reward and pleasure processing.
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Affiliation(s)
- Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Laura M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | | | - Amy Ferguson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Rona J Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
- Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Breda Cullen
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Nicholas Graham
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | | | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Graham K Murray
- Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK.
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12
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Johnston KJA, Adams MJ, Nicholl BI, Ward J, Strawbridge RJ, McIntosh AM, Smith DJ, Bailey MES. Identification of novel common variants associated with chronic pain using conditional false discovery rate analysis with major depressive disorder and assessment of pleiotropic effects of LRFN5. Transl Psychiatry 2019; 9:310. [PMID: 31748543 PMCID: PMC6868167 DOI: 10.1038/s41398-019-0613-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 09/10/2019] [Accepted: 09/24/2019] [Indexed: 02/06/2023] Open
Abstract
Chronic pain is a complex trait that is moderately heritable and genetically, as well as phenotypically, correlated with major depressive disorder (MDD). Use of the conditional false discovery rate (cFDR) approach, which leverages pleiotropy identified from existing GWAS outputs, has been successful in discovering novel associated variants in related phenotypes. Here, genome-wide association study outputs for both von Korff chronic pain grade and for MDD were used to identify variants meeting a cFDR threshold for each outcome phenotype separately, as well as a conjunctional cFDR (ccFDR) threshold for both phenotypes together. Using a moderately conservative threshold, we identified a total of 11 novel single nucleotide polymorphisms (SNPs), six of which were associated with chronic pain grade and nine of which were associated with MDD. Four SNPs on chromosome 14 were associated with both chronic pain grade and MDD. SNPs associated only with chronic pain grade were located within SLC16A7 on chromosome 12. SNPs associated only with MDD were located either in a gene-dense region on chromosome 1 harbouring LINC01360, LRRIQ3, FPGT and FPGT-TNNI3K, or within/close to LRFN5 on chromosome 14. The SNPs associated with both outcomes were also located within LRFN5. Several of the SNPs on chromosomes 1 and 14 were identified as being associated with expression levels of nearby genes in the brain and central nervous system. Overall, using the cFDR approach, we identified several novel genetic loci associated with chronic pain and we describe likely pleiotropic effects of a recently identified MDD locus on chronic pain.
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Affiliation(s)
- Keira J A Johnston
- Institute of Health and Wellbeing, University of Glasgow, Scotland, UK.
- Deanery of Molecular, Genetic and Population Health Sciences, College of Medicine and Veterinary Medicine, University of Edinburgh, Scotland, UK.
- School of Life Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Scotland, UK.
| | - Mark J Adams
- Division of Psychiatry, University of Edinburgh, Scotland, UK
| | - Barbara I Nicholl
- Institute of Health and Wellbeing, University of Glasgow, Scotland, UK
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Scotland, UK
| | - Rona J Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Scotland, UK
- Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | | | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Scotland, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Scotland, UK
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13
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Johnston KJA, Adams MJ, Nicholl BI, Ward J, Strawbridge RJ, Ferguson A, McIntosh AM, Bailey MES, Smith DJ. Genome-wide association study of multisite chronic pain in UK Biobank. PLoS Genet 2019; 15:e1008164. [PMID: 31194737 PMCID: PMC6592570 DOI: 10.1371/journal.pgen.1008164] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 06/25/2019] [Accepted: 04/27/2019] [Indexed: 12/20/2022] Open
Abstract
Chronic pain is highly prevalent worldwide and represents a significant socioeconomic and public health burden. Several aspects of chronic pain, for example back pain and a severity-related phenotype ‘chronic pain grade’, have been shown previously to be complex heritable traits with a polygenic component. Additional pain-related phenotypes capturing aspects of an individual’s overall sensitivity to experiencing and reporting chronic pain have also been suggested as a focus for investigation. We made use of a measure of the number of sites of chronic pain in individuals within the UK general population. This measure, termed Multisite Chronic Pain (MCP), is a complex trait and its genetic architecture has not previously been investigated. To address this, we carried out a large-scale genome-wide association study (GWAS) of MCP in ~380,000 UK Biobank participants. Our findings were consistent with MCP having a significant polygenic component, with a Single Nucleotide Polymorphism (SNP) heritability of 10.2%. In total 76 independent lead SNPs at 39 risk loci were associated with MCP. Additional gene-level association analyses identified neurogenesis, synaptic plasticity, nervous system development, cell-cycle progression and apoptosis genes as enriched for genetic association with MCP. Genetic correlations were observed between MCP and a range of psychiatric, autoimmune and anthropometric traits, including major depressive disorder (MDD), asthma and Body Mass Index (BMI). Furthermore, in Mendelian randomisation (MR) analyses a causal effect of MCP on MDD was observed. Additionally, a polygenic risk score (PRS) for MCP was found to significantly predict chronic widespread pain (pain all over the body), indicating the existence of genetic variants contributing to both of these pain phenotypes. Overall, our findings support the proposition that chronic pain involves a strong nervous system component with implications for our understanding of the physiology of chronic pain. These discoveries may also inform the future development of novel treatment approaches. Chronic pain is common worldwide and imposes a significant burden from a public health and socioeconomic perspective. The reasons why some individuals develop chronic pain and others do not are not fully understood. In this study we searched for genetic variants associated with chronic pain in a large general-population cohort. We also assessed how this genetic variation was correlated with a range of other diseases and traits, such as depression and BMI, and we tested for causal relationships between depression and chronic pain. We found that chronic pain was associated with several genes involved in brain function and development and was correlated with mental health and autoimmune traits (including depression, PTSD and asthma). We also found evidence for causal relationships between chronic pain and major depressive disorder. This work provides new insights into the genetics and underlying biology of chronic pain and may help to inform new treatment strategies.
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Affiliation(s)
- Keira J. A. Johnston
- Institute of Health and Wellbeing, University of Glasgow, Scotland, United Kingdom
- Deanery of Molecular, Genetic and Population Health Sciences, College of Medicine and Veterinary Medicine, University of Edinburgh, Scotland, United Kingdom
- School of Life Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Scotland, United Kingdom
- * E-mail:
| | - Mark J. Adams
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Scotland, United Kingdom
| | - Barbara I. Nicholl
- Institute of Health and Wellbeing, University of Glasgow, Scotland, United Kingdom
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Scotland, United Kingdom
| | - Rona J. Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Scotland, United Kingdom
- Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Amy Ferguson
- Institute of Health and Wellbeing, University of Glasgow, Scotland, United Kingdom
| | - Andrew M. McIntosh
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Scotland, United Kingdom
| | - Mark E. S. Bailey
- School of Life Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Scotland, United Kingdom
| | - Daniel J. Smith
- Institute of Health and Wellbeing, University of Glasgow, Scotland, United Kingdom
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14
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Celis-Morales CA, Lyall DM, Petermann F, Anderson J, Ward J, Iliodromiti S, Mackay DF, Welsh P, Bailey MES, Pell J, Sattar N, Gill JMR, Gray SR. Do physical activity, commuting mode, cardiorespiratory fitness and sedentary behaviours modify the genetic predisposition to higher BMI? Findings from a UK Biobank study. Int J Obes (Lond) 2019; 43:1526-1538. [PMID: 31168053 DOI: 10.1038/s41366-019-0381-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 03/01/2019] [Accepted: 03/10/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To investigate whether the association between a genetic profile risk score for obesity (GPRS-obesity) (based on 93 SNPs) and body mass index (BMI) was modified by physical activity (PA), cardiorespiratory fitness, commuting mode, walking pace and sedentary behaviours. METHODS For the analyses we used cross-sectional baseline data from 310,652 participants in the UK Biobank study. We investigated interaction effects of GPRS-obesity with objectively measured and self-reported PA, cardiorespiratory fitness, commuting mode, walking pace, TV viewing, playing computer games, PC-screen time and total sedentary behaviour on BMI. Body mass index (BMI) was the main outcome measure. RESULTS GPRS-obesity was associated with BMI (β:0.54 kg.m-2 per standard deviation (SD) increase in GPRS, [95% CI: 0.53; 0.56]; P = 2.1 × 10-241). There was a significant interaction between GPRS-obesity and objectively measured PA (P[interaction] = 3.3 × 10-11): among inactive individuals, BMI was higher by 0.58 kg.m-2 per SD increase in GPRS-obesity (p = 1.3 × 10-70) whereas among active individuals the relevant BMI difference was less (β:0.33 kg.m-2, p = 6.4 × 10-41). We observed similar patterns for fitness (Unfit β:0.72 versus Fit β:0.36 kg.m-2, P[interaction] = 1.4 × 10-11), walking pace (Slow β:0.91 versus Brisk β:0.38 kg.m-2, P[interaction] = 8.1 × 10-27), discretionary sedentary behaviour (High β:0.64 versus Low β:0.48 kg.m-2, P[interaction] = 9.1 × 10-12), TV viewing (High β:0.62 versus Low β:0.47 kg.m-2, P[interaction] = 1.7 × 10-11), PC-screen time (High β:0.82 versus Low β:0.54 kg.m-2, P[interaction] = 0.0004) and playing computer games (Often β:0.69 versus Low β:0.52 kg.m-2, P[interaction] = 8.9 × 10-10). No significant interactions were found for commuting mode (car, public transport, active commuters). CONCLUSIONS Physical activity, sedentary behaviours and fitness modify the extent to which a set of the most important known adiposity variants affect BMI. This suggests that the adiposity benefits of high PA and low sedentary behaviour may be particularly important in individuals with high genetic risk for obesity.
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Affiliation(s)
- Carlos A Celis-Morales
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK.,Centro de Investigación en Fisiología del Ejercicio (CIFE), Universidad Mayor, Santiago, Chile
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | - Fanny Petermann
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK.,Institute of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | - Jana Anderson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | - Stamatina Iliodromiti
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Daniel F Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | - Paul Welsh
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Jill Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Jason M R Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Stuart R Gray
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK.
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15
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Celis-Morales CA, Lyall DM, Bailey MES, Petermann-Rocha F, Anderson J, Ward J, Mackay DF, Welsh P, Pell JP, Sattar N, Gill JMR, Gray SR. The Combination of Physical Activity and Sedentary Behaviors Modifies the Genetic Predisposition to Obesity. Obesity (Silver Spring) 2019; 27:653-661. [PMID: 30900409 DOI: 10.1002/oby.22417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 11/08/2018] [Indexed: 01/19/2023]
Abstract
OBJECTIVE This study aimed to investigate whether the association between a validated genetic profile risk score for BMI (GPRS-BMI) (based on 93 single-nucleotide polymorphisms) and phenotypic obesity (BMI) was modified by the combined categories of physical activity (PA) and sedentary behaviors in a large population-based study. METHODS This study included cross-sectional baseline data from 338,216 white European adult men and women aged 37 to 73 years. Interaction effects of GPRS-BMI with the combined categories of PA and sedentary behaviors on BMI were investigated. RESULTS There was a significant interaction between GPRS-BMI and the combined categories of objectively measured PA and total sedentary behavior (P[interaction] = 3.5 × 10-6 ); among physically inactive and highly sedentary individuals, BMI was higher by 0.60 kg/m2 per 1-SD increase in GPRS-obesity (P = 8.9 × 10-50 ), whereas the relevant BMI difference was 38% lower among physically active individuals and those with low sedentary time (β: 0.37 kg/m2 ; P = 2.3 × 10-51 ). A similar pattern was observed for the combined categories of objective PA and TV viewing (inactive/high TV viewing β: 0.60 vs. active/low TV viewing β: 0.40 kg/m2 ; P[interaction] = 2.9 × 10-6 ). CONCLUSIONS This study provides evidence that combined categories of PA and sedentary behaviors modify the extent to which genetic predisposition to obesity results in higher BMI.
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Affiliation(s)
- Carlos A Celis-Morales
- British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
- Centre for Research in Exercise Physiology (CIFE), Universidad Mayor, Santiago, Chile
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Fanny Petermann-Rocha
- British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Jana Anderson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Daniel F Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Paul Welsh
- British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Naveed Sattar
- British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Jason M R Gill
- British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Stuart R Gray
- British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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16
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Strawbridge RJ, Ward J, Ferguson A, Graham N, Shaw RJ, Cullen B, Pearsall R, Lyall LM, Johnston KJA, Niedzwiedz CL, Pell JP, Mackay D, Martin JL, Lyall DM, Bailey MES, Smith DJ. Identification of novel genome-wide associations for suicidality in UK Biobank, genetic correlation with psychiatric disorders and polygenic association with completed suicide. EBioMedicine 2019; 41:517-525. [PMID: 30745170 PMCID: PMC6442001 DOI: 10.1016/j.ebiom.2019.02.005] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/04/2019] [Accepted: 02/04/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Suicide is a major issue for global public health. Suicidality describes a broad spectrum of thoughts and behaviours, some of which are common in the general population. Although suicide results from a complex interaction of multiple social and psychological factors, predisposition to suicidality is at least partly genetic. METHODS Ordinal genome-wide association study of suicidality in the UK Biobank cohort comparing: 'no suicidality' controls (N = 83,557); 'thoughts that life was not worth living' (N = 21,063); 'ever contemplated self-harm' (N = 13,038); 'act of deliberate self-harm in the past' (N = 2498); and 'previous suicide attempt' (N = 2666). OUTCOMES We identified three novel genome-wide significant loci for suicidality (on chromosomes nine, 11 and 13) and moderate-to-strong genetic correlations between suicidality and a range of psychiatric disorders, most notably depression (rg 0·81). INTERPRETATION These findings provide new information about genetic variants relating to increased risk of suicidal thoughts and behaviours. Future work should assess the extent to which polygenic risk scores for suicidality, in combination with non-genetic risk factors, may be useful for stratified approaches to suicide prevention at a population level. FUND: UKRI Innovation-HDR-UK Fellowship (MR/S003061/1). MRC Mental Health Data Pathfinder Award (MC_PC_17217). MRC Doctoral Training Programme Studentship at the University of Glasgow (MR/K501335/1). MRC Doctoral Training Programme Studentship at the Universities of Glasgow and Edinburgh. UKRI Innovation Fellowship (MR/R024774/1).
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Affiliation(s)
- Rona J Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK; Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Amy Ferguson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Nicholas Graham
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Richard J Shaw
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Breda Cullen
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Robert Pearsall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Laura M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Keira J A Johnston
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK; Division of Psychiatry, College of Medicine, University of Edinburgh, UK; School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | | | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Daniel Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | | | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK.
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17
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Strawbridge RJ, Ward J, Lyall LM, Tunbridge EM, Cullen B, Graham N, Ferguson A, Johnston KJA, Lyall DM, Mackay D, Cavanagh J, Howard DM, Adams MJ, Deary I, Escott-Price V, O'Donovan M, McIntosh AM, Bailey MES, Pell JP, Harrison PJ, Smith DJ. Genetics of self-reported risk-taking behaviour, trans-ethnic consistency and relevance to brain gene expression. Transl Psychiatry 2018; 8:178. [PMID: 30181555 PMCID: PMC6123450 DOI: 10.1038/s41398-018-0236-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 08/05/2018] [Indexed: 12/25/2022] Open
Abstract
Risk-taking behaviour is an important component of several psychiatric disorders, including attention-deficit hyperactivity disorder, schizophrenia and bipolar disorder. Previously, two genetic loci have been associated with self-reported risk taking and significant genetic overlap with psychiatric disorders was identified within a subsample of UK Biobank. Using the white British participants of the full UK Biobank cohort (n = 83,677 risk takers versus 244,662 controls) for our primary analysis, we conducted a genome-wide association study of self-reported risk-taking behaviour. In secondary analyses, we assessed sex-specific effects, trans-ethnic heterogeneity and genetic overlap with psychiatric traits. We also investigated the impact of risk-taking-associated SNPs on both gene expression and structural brain imaging. We identified 10 independent loci for risk-taking behaviour, of which eight were novel and two replicated previous findings. In addition, we found two further sex-specific risk-taking loci. There were strong positive genetic correlations between risk-taking and attention-deficit hyperactivity disorder, bipolar disorder and schizophrenia. Index genetic variants demonstrated effects generally consistent with the discovery analysis in individuals of non-British White, South Asian, African-Caribbean or mixed ethnicity. Polygenic risk scores comprising alleles associated with increased risk taking were associated with lower white matter integrity. Genotype-specific expression pattern analyses highlighted DPYSL5, CGREF1 and C15orf59 as plausible candidate genes. Overall, our findings substantially advance our understanding of the biology of risk-taking behaviour, including the possibility of sex-specific contributions, and reveal consistency across ethnicities. We further highlight several putative novel candidate genes, which may mediate these genetic effects.
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Affiliation(s)
- Rona J Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK.
- Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden.
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Laura M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Elizabeth M Tunbridge
- Department of Psychiatry, University of Oxford, Oxford, UK
- Oxford Health NHS Foundation Trust, Oxford, UK
| | - Breda Cullen
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Nicholas Graham
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Amy Ferguson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Keira J A Johnston
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Division of Psychiatry, College of Medicine, University of Edinburgh, Edinburgh, UK
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Daniel Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Jonathan Cavanagh
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - David M Howard
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, EH10 5HF, UK
| | - Mark J Adams
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, EH10 5HF, UK
| | - Ian Deary
- Department of Psychology, University of Edinburgh, Edinburgh, EH8 9YL, UK
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, EH8 9YL, UK
| | | | - Michael O'Donovan
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | - Andrew M McIntosh
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, EH10 5HF, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Paul J Harrison
- Department of Psychiatry, University of Oxford, Oxford, UK
- Oxford Health NHS Foundation Trust, Oxford, UK
| | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
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18
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Ferguson A, Lyall LM, Ward J, Strawbridge RJ, Cullen B, Graham N, Niedzwiedz CL, Johnston KJA, MacKay D, Biello SM, Pell JP, Cavanagh J, McIntosh AM, Doherty A, Bailey MES, Lyall DM, Wyse CA, Smith DJ. Genome-Wide Association Study of Circadian Rhythmicity in 71,500 UK Biobank Participants and Polygenic Association with Mood Instability. EBioMedicine 2018; 35:279-287. [PMID: 30120083 PMCID: PMC6154782 DOI: 10.1016/j.ebiom.2018.08.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 08/03/2018] [Accepted: 08/03/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Circadian rhythms are fundamental to health and are particularly important for mental wellbeing. Disrupted rhythms of rest and activity are recognised as risk factors for major depressive disorder and bipolar disorder. METHODS We conducted a genome-wide association study (GWAS) of low relative amplitude (RA), an objective measure of rest-activity cycles derived from the accelerometer data of 71,500 UK Biobank participants. Polygenic risk scores (PRS) for low RA were used to investigate potential associations with psychiatric phenotypes. OUTCOMES Two independent genetic loci were associated with low RA, within genomic regions for Neurofascin (NFASC) and Solute Carrier Family 25 Member 17 (SLC25A17). A secondary GWAS of RA as a continuous measure identified a locus within Meis Homeobox 1 (MEIS1). There were no significant genetic correlations between low RA and any of the psychiatric phenotypes assessed. However, PRS for low RA was significantly associated with mood instability across multiple PRS thresholds (at PRS threshold 0·05: OR = 1·02, 95% CI = 1·01-1·02, p = 9·6 × 10-5), and with major depressive disorder (at PRS threshold 0·1: OR = 1·03, 95% CI = 1·01-1·05, p = 0·025) and neuroticism (at PRS threshold 0·5: Beta = 0·02, 95% CI = 0·007-0·04, p = 0·021). INTERPRETATION Overall, our findings contribute new knowledge on the complex genetic architecture of circadian rhythmicity and suggest a putative biological link between disrupted circadian function and mood disorder phenotypes, particularly mood instability, but also major depressive disorder and neuroticism. FUNDING Medical Research Council (MR/K501335/1).
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Affiliation(s)
- Amy Ferguson
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK.
| | - Laura M Lyall
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK
| | - Joey Ward
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK
| | - Rona J Strawbridge
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK; Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Breda Cullen
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK
| | - Nicholas Graham
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK
| | | | | | - Daniel MacKay
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK
| | - Stephany M Biello
- Institute of Neuroscience and Psychology, University of Glasgow, Scotland, UK
| | - Jill P Pell
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK
| | - Jonathan Cavanagh
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK
| | - Andrew M McIntosh
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Scotland, UK
| | - Aiden Doherty
- Big Data Institute, Nuffield Department of Population Health, BHF Centre of Research Excellence, University of Oxford, Oxford, UK; Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Scotland, UK
| | - Donald M Lyall
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK
| | - Cathy A Wyse
- Department of Molecular and Cellular Therapeutics, Irish Centre for Vascular Biology, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - Daniel J Smith
- Institute of Health & Wellbeing, University of Glasgow, Scotland, UK.
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19
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Boakye D, Wyse CA, Morales-Celis CA, Biello SM, Bailey MES, Dare S, Ward J, Gill JMR, Pell JP, Mackay DF. Tobacco exposure and sleep disturbance in 498 208 UK Biobank participants. J Public Health (Oxf) 2018; 40:517-526. [PMID: 29040744 PMCID: PMC6166587 DOI: 10.1093/pubmed/fdx102] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 06/28/2017] [Indexed: 11/12/2022] Open
Abstract
Background The prevalence of sleep disturbance is high and increasing. The study investigated whether active, former and passive smoking were associated with sleep disturbance. Methods This cross-sectional study used data from the UK Biobank: a cohort study of 502 655 participants, of whom 498 208 provided self-reported data on smoking and sleep characteristics. Multivariable multinomial and logistic regression models were used to examine the associations between smoking and sleep disturbance. Results Long-sleep duration (>9 h) was more common among current smokers [odds ratio (OR): 1.47; 95% confidence interval (CI): 1.17-1.85; probability value (P) = 0.001] than never smokers, especially heavy (>20/day) smokers (OR: 2.85; 95% CI: 1.66-4.89; P < 0.001). Former heavy (>20/day) smokers were also more likely to report short (<6 h) sleep duration (OR: 1.41; 95% CI: 1.25-1.60; P < 0.001), long-sleep duration (OR: 1.99; 95% CI: 1.47-2.71; P < 0.001) and sleeplessness (OR: 1.47; 95% CI: 1.38-1.57; P < 0.001) than never smokers. Among never smokers, those who lived with more than one smoker had higher odds of long-sleep duration than those not cohabitating with a smoker (OR: 2.71; 95% CI: 1.26-5.82; P = 0.011). Conclusions Active and passive exposure to high levels of tobacco smoke are associated with sleep disturbance. Existing global tobacco control interventions need to be enforced.
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Affiliation(s)
- D Boakye
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - C A Wyse
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - C A Morales-Celis
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - S M Biello
- Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, UK
| | - M E S Bailey
- Institute of Molecular Cell and Systems Biology, University of Glasgow Glasgow, UK
| | - S Dare
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - J Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - J M R Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - J P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - D F Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
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20
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Wyse CA, Celis Morales CA, Ward J, Lyall D, Smith DJ, Mackay D, Curtis AM, Bailey MES, Biello S, Gill JMR, Pell JP. Population-level seasonality in cardiovascular mortality, blood pressure, BMI and inflammatory cells in UK biobank. Ann Med 2018; 50:410-419. [PMID: 29724143 DOI: 10.1080/07853890.2018.1472389] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
INTRODUCTION The risk of mortality from cardiovascular disease (CVD) is higher in wintertime throughout the world, but it is not known if this reflects annual changes in diet or lifestyle, or an endogenous photoperiodic mechanism that is sensitive to changes in day length. METHODS Phenotypic data on cardiometabolic and lifestyle factors were collected throughout a 4 year time period from 502,642 middle-aged participants in UK Biobank. To assess the impact of seasonal environmental changes on cardiovascular risk factors, we linked these data to the outdoor temperature and day length at the time of assessment. Self-reported information on physical activity, diet and disease status were used to adjust for confounding factors related to health and lifestyle. RESULTS Mortality related to CVD was higher in winter, as were risk factors for this condition including blood pressure, markers of inflammation and body mass index (BMI). These seasonal rhythms were significantly related to day length after adjustment for other factors that might affect seasonality including physical activity, diet and outdoor temperature. CONCLUSIONS The risk of CVD may be modulated by day length at temperate latitudes, and the implications of seasonality should be considered in all studies of human cardiometabolic health. Key messages In this cross-sectional study in UK Biobank, we report annual variations in cardiovascular risk factors and mortality that were associated with day length independent of environmental and lifestyle factors. These seasonal changes in day length might contribute to annual patterns in cardiovascular disease and mortality.
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Affiliation(s)
- Cathy A Wyse
- a Department of Molecular and Cellular Therapeutics Department , Royal College of Surgeons in Ireland (RCSI) , Dublin , Ireland.,b Institute of Biodiversity, Animal Health and Comparative Medicine , University of Glasgow , Glasgow , UK
| | - Carlos A Celis Morales
- c Institute of Cardiovascular and Medical Sciences , University of Glasgow , Glasgow , UK
| | - Joey Ward
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
| | - Donald Lyall
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
| | - Daniel J Smith
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
| | - Daniel Mackay
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
| | - Annie M Curtis
- a Department of Molecular and Cellular Therapeutics Department , Royal College of Surgeons in Ireland (RCSI) , Dublin , Ireland
| | - Mark E S Bailey
- e School of Life Sciences , University of Glasgow , Glasgow , UK
| | - Stephany Biello
- f Institute of Neuroscience and Psychology , University of Glasgow , Glasgow , UK
| | - Jason M R Gill
- c Institute of Cardiovascular and Medical Sciences , University of Glasgow , Glasgow , UK
| | - J P Pell
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
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21
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Lyall LM, Wyse CA, Graham N, Ferguson A, Lyall DM, Cullen B, Celis Morales CA, Biello SM, Mackay D, Ward J, Strawbridge RJ, Gill JMR, Bailey MES, Pell JP, Smith DJ. Association of disrupted circadian rhythmicity with mood disorders, subjective wellbeing, and cognitive function: a cross-sectional study of 91 105 participants from the UK Biobank. Lancet Psychiatry 2018; 5:507-514. [PMID: 29776774 DOI: 10.1016/s2215-0366(18)30139-1] [Citation(s) in RCA: 184] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/06/2018] [Accepted: 04/03/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Disruption of sleep and circadian rhythmicity is a core feature of mood disorders and might be associated with increased susceptibility to such disorders. Previous studies in this area have used subjective reports of activity and sleep patterns, but the availability of accelerometer-based data from UK Biobank participants permits the derivation and analysis of new, objectively ascertained circadian rhythmicity parameters. We examined associations between objectively assessed circadian rhythmicity and mental health and wellbeing phenotypes, including lifetime history of mood disorder. METHODS UK residents aged 37-73 years were recruited into the UK Biobank general population cohort from 2006 to 2010. We used data from a subset of participants whose activity levels were recorded by wearing a wrist-worn accelerometer for 7 days. From these data, we derived a circadian relative amplitude variable, which is a measure of the extent to which circadian rhythmicity of rest-activity cycles is disrupted. In the same sample, we examined cross-sectional associations between low relative amplitude and mood disorder, wellbeing, and cognitive variables using a series of regression models. Our final model adjusted for age and season at the time that accelerometry started, sex, ethnic origin, Townsend deprivation score, smoking status, alcohol intake, educational attainment, overall mean acceleration recorded by accelerometry, body-mass index, and a binary measure of childhood trauma. FINDINGS We included 91 105 participants with accelerometery data collected between 2013 and 2015 in our analyses. A one-quintile reduction in relative amplitude was associated with increased risk of lifetime major depressive disorder (odds ratio [OR] 1·06, 95% CI 1·04-1·08) and lifetime bipolar disorder (1·11, 1·03-1·20), as well as with greater mood instability (1·02, 1·01-1·04), higher neuroticism scores (incident rate ratio 1·01, 1·01-1·02), more subjective loneliness (OR 1·09, 1·07-1·11), lower happiness (0·91, 0·90-0·93), lower health satisfaction (0·90, 0·89-0·91), and slower reaction times (linear regression coefficient 1·75, 1·05-2·45). These associations were independent of demographic, lifestyle, education, and overall activity confounders. INTERPRETATION Circadian disruption is reliably associated with various adverse mental health and wellbeing outcomes, including major depressive disorder and bipolar disorder. Lower relative amplitude might be linked to increased susceptibility to mood disorders. FUNDING Lister Institute of Preventive Medicine.
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Affiliation(s)
- Laura M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK.
| | - Cathy A Wyse
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK; Department of Molecular and Cellular Therapeutics, Irish Centre for Vascular Biology, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - Nicholas Graham
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Amy Ferguson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Breda Cullen
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | | | | | - Daniel Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Rona J Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK; Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Jason M R Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
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Ross PD, Guy J, Selfridge J, Kamal B, Bahey N, Tanner KE, Gillingwater TH, Jones RA, Loughrey CM, McCarroll CS, Bailey MES, Bird A, Cobb S. Exclusive expression of MeCP2 in the nervous system distinguishes between brain and peripheral Rett syndrome-like phenotypes. Hum Mol Genet 2018; 25:4389-4404. [PMID: 28173151 PMCID: PMC5886038 DOI: 10.1093/hmg/ddw269] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/02/2016] [Accepted: 08/03/2016] [Indexed: 12/22/2022] Open
Abstract
Rett syndrome (RTT) is a severe genetic disorder resulting from mutations in the X-linked MECP2 gene. MeCP2 protein is highly expressed in the nervous system and deficiency in the mouse central nervous system alone recapitulates many features of the disorder. This suggests that RTT is primarily a neurological disorder, although the protein is reportedly widely expressed throughout the body. To determine whether aspects of the RTT phenotype that originate in non-neuronal tissues might have been overlooked, we generated mice in which Mecp2 remains at near normal levels in the nervous system, but is severely depleted elsewhere. Comparison of these mice with wild type and globally MeCP2-deficient mice showed that the majority of RTT-associated behavioural, sensorimotor, gait and autonomic (respiratory and cardiac) phenotypes are absent. Specific peripheral phenotypes were observed, however, most notably hypo-activity, exercise fatigue and bone abnormalities. Our results confirm that the brain should be the primary target for potential RTT therapies, but also strongly suggest that some less extreme but clinically significant aspects of the disorder arise independently of defects in the nervous system.
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Affiliation(s)
- Paul D Ross
- Institute of Neuroscience and Psychology, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Jacky Guy
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Michael Swann Building, Edinburgh, UK
| | - Jim Selfridge
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Michael Swann Building, Edinburgh, UK
| | - Bushra Kamal
- Institute of Neuroscience and Psychology, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Noha Bahey
- Institute of Neuroscience and Psychology, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK.,Histology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Thomas H Gillingwater
- Edinburgh Medical School: Biomedical Sciences, University of Edinburgh, Hugh Robson Building, Edinburgh, UK
| | - Ross A Jones
- Edinburgh Medical School: Biomedical Sciences, University of Edinburgh, Hugh Robson Building, Edinburgh, UK
| | - Christopher M Loughrey
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK and
| | - Charlotte S McCarroll
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK and
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Adrian Bird
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Michael Swann Building, Edinburgh, UK
| | - Stuart Cobb
- Institute of Neuroscience and Psychology, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
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23
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Strawbridge RJ, Ward J, Cullen B, Tunbridge EM, Hartz S, Bierut L, Horton A, Bailey MES, Graham N, Ferguson A, Lyall DM, Mackay D, Pidgeon LM, Cavanagh J, Pell JP, O'Donovan M, Escott-Price V, Harrison PJ, Smith DJ. Genome-wide analysis of self-reported risk-taking behaviour and cross-disorder genetic correlations in the UK Biobank cohort. Transl Psychiatry 2018; 8:39. [PMID: 29391395 PMCID: PMC5804026 DOI: 10.1038/s41398-017-0079-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 10/20/2017] [Accepted: 11/13/2017] [Indexed: 11/09/2022] Open
Abstract
Risk-taking behaviour is a key component of several psychiatric disorders and could influence lifestyle choices such as smoking, alcohol use, and diet. As a phenotype, risk-taking behaviour therefore fits within a Research Domain Criteria (RDoC) approach, whereby identifying genetic determinants of this trait has the potential to improve our understanding across different psychiatric disorders. Here we report a genome-wide association study in 116,255 UK Biobank participants who responded yes/no to the question "Would you consider yourself a risk taker?" Risk takers (compared with controls) were more likely to be men, smokers, and have a history of psychiatric disorder. Genetic loci associated with risk-taking behaviour were identified on chromosomes 3 (rs13084531) and 6 (rs9379971). The effects of both lead SNPs were comparable between men and women. The chromosome 3 locus highlights CADM2, previously implicated in cognitive and executive functions, but the chromosome 6 locus is challenging to interpret due to the complexity of the HLA region. Risk-taking behaviour shared significant genetic risk with schizophrenia, bipolar disorder, attention-deficit hyperactivity disorder, and post-traumatic stress disorder, as well as with smoking and total obesity. Despite being based on only a single question, this study furthers our understanding of the biology of risk-taking behaviour, a trait that has a major impact on a range of common physical and mental health disorders.
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Affiliation(s)
- Rona J Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK.
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Breda Cullen
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Elizabeth M Tunbridge
- Department of Psychiatry, University of Oxford, Oxford, UK
- Oxford Health NHS Foundation Trust, Oxford, UK
| | - Sarah Hartz
- Department of Psychiatry, Washington University School of Medicine in St Louis, St Louis, MO, USA
| | - Laura Bierut
- Department of Psychiatry, Washington University School of Medicine in St Louis, St Louis, MO, USA
| | - Amy Horton
- Department of Psychiatry, Washington University School of Medicine in St Louis, St Louis, MO, USA
- Transmontane Analytics, Tuscon, AZ, USA
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Nicholas Graham
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Amy Ferguson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Daniel Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Laura M Pidgeon
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Jonathan Cavanagh
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Michael O'Donovan
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | | | - Paul J Harrison
- Department of Psychiatry, University of Oxford, Oxford, UK
- Oxford Health NHS Foundation Trust, Oxford, UK
| | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
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Hector RD, Kalscheuer VM, Hennig F, Leonard H, Downs J, Clarke A, Benke TA, Armstrong J, Pineda M, Bailey MES, Cobb SR. CDKL5 variants: Improving our understanding of a rare neurologic disorder. Neurol Genet 2017; 3:e200. [PMID: 29264392 PMCID: PMC5732004 DOI: 10.1212/nxg.0000000000000200] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 09/28/2017] [Indexed: 02/01/2023]
Abstract
Objective: To provide new insights into the interpretation of genetic variants in a rare neurologic disorder, CDKL5 deficiency, in the contexts of population sequencing data and an updated characterization of the CDKL5 gene. Methods: We analyzed all known potentially pathogenic CDKL5 variants by combining data from large-scale population sequencing studies with CDKL5 variants from new and all available clinical cohorts and combined this with computational methods to predict pathogenicity. Results: The study has identified several variants that can be reclassified as benign or likely benign. With the addition of novel CDKL5 variants, we confirm that pathogenic missense variants cluster in the catalytic domain of CDKL5 and reclassify a purported missense variant as having a splicing consequence. We provide further evidence that missense variants in the final 3 exons are likely to be benign and not important to disease pathology. We also describe benign splicing and nonsense variants within these exons, suggesting that isoform hCDKL5_5 is likely to have little or no neurologic significance. We also use the available data to make a preliminary estimate of minimum incidence of CDKL5 deficiency. Conclusions: These findings have implications for genetic diagnosis, providing evidence for the reclassification of specific variants previously thought to result in CDKL5 deficiency. Together, these analyses support the view that the predominant brain isoform in humans (hCDKL5_1) is crucial for normal neurodevelopment and that the catalytic domain is the primary functional domain.
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Affiliation(s)
- Ralph D Hector
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Vera M Kalscheuer
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Friederike Hennig
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Helen Leonard
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Jenny Downs
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Angus Clarke
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Tim A Benke
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Judith Armstrong
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Mercedes Pineda
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Mark E S Bailey
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Stuart R Cobb
- Institute of Neuroscience & Psychology (R.D.H., S.R.C.), University of Glasgow, UK, Drs. Hector and Cobb are currently with the Patrick Wild Centre and Centre for Discovery Brain Science, University of Edinburgh, UK; Group Development and Disease (V.M.K., F.H.), Max Planck Institute for Molecular Genetics, Berlin, Germany; Telethon Kids Institute (H.L., J.D.), The University of Western Australia, Perth, Western Australia; School of Physiotherapy and Exercise Science (J.D.), Curtin University, Perth, Australia; Institute of Medical Genetics (A.C.), School of Medicine, Cardiff University, Cardiff, Wales, UK; Departments of Pediatrics, Pharmacology, Neurology and Otolaryngology (T.A.B.), University of Colorado School of Medicine, Aurora, CO; Paedriatic Neuroscience (J.A., M.P.), Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; Hospital Sant Joan de Déu Barcelona (J.A.), Esplugues de Llobregat, Spain; CIBERER (J.A.), Barcelona, Spain; Neuropediatrics (M.P.), Fundació Sant Joan de Déu, Esplugues de Llobregat, Spain; and School of Life Sciences (M.E.S.B.), College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
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Ward J, Strawbridge RJ, Bailey MES, Graham N, Ferguson A, Lyall DM, Cullen B, Pidgeon LM, Cavanagh J, Mackay DF, Pell JP, O'Donovan M, Escott-Price V, Smith DJ. Genome-wide analysis in UK Biobank identifies four loci associated with mood instability and genetic correlation with major depressive disorder, anxiety disorder and schizophrenia. Transl Psychiatry 2017; 7:1264. [PMID: 29187730 PMCID: PMC5802589 DOI: 10.1038/s41398-017-0012-7] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/09/2017] [Accepted: 08/09/2017] [Indexed: 11/08/2022] Open
Abstract
Mood instability is a core clinical feature of affective and psychotic disorders. In keeping with the Research Domain Criteria approach, it may be a useful construct for identifying biology that cuts across psychiatric categories. We aimed to investigate the biological validity of a simple measure of mood instability and evaluate its genetic relationship with several psychiatric disorders, including major depressive disorder (MDD), bipolar disorder (BD), schizophrenia, attention deficit hyperactivity disorder (ADHD), anxiety disorder and post-traumatic stress disorder (PTSD). We conducted a genome-wide association study (GWAS) of mood instability in 53,525 cases and 60,443 controls from UK Biobank, identifying four independently associated loci (on chromosomes 8, 9, 14 and 18), and a common single-nucleotide polymorphism (SNP)-based heritability estimate of ~8%. We found a strong genetic correlation between mood instability and MDD (r g = 0.60, SE = 0.07, p = 8.95 × 10-17) and a small but significant genetic correlation with both schizophrenia (r g = 0.11, SE = 0.04, p = 0.01) and anxiety disorders (r g = 0.28, SE = 0.14, p = 0.04), although no genetic correlation with BD, ADHD or PTSD was observed. Several genes at the associated loci may have a role in mood instability, including the DCC netrin 1 receptor (DCC) gene, eukaryotic translation initiation factor 2B subunit beta (eIF2B2), placental growth factor (PGF) and protein tyrosine phosphatase, receptor type D (PTPRD). Strengths of this study include the very large sample size, but our measure of mood instability may be limited by the use of a single question. Overall, this work suggests a polygenic basis for mood instability. This simple measure can be obtained in very large samples; our findings suggest that doing so may offer the opportunity to illuminate the fundamental biology of mood regulation.
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Affiliation(s)
- Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Rona J Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
- Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Nicholas Graham
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Amy Ferguson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Breda Cullen
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Laura M Pidgeon
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Jonathan Cavanagh
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Daniel F Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Michael O'Donovan
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | | | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK.
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Wyse CA, Celis Morales CA, Graham N, Fan Y, Ward J, Curtis AM, Mackay D, Smith DJ, Bailey MES, Biello S, Gill JMR, Pell JP. Adverse metabolic and mental health outcomes associated with shiftwork in a population-based study of 277,168 workers in UK biobank<sup/>. Ann Med 2017; 49:411-420. [PMID: 28166415 DOI: 10.1080/07853890.2017.1292045] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND Reported associations between shiftwork and health have largely been based on occupation-specific, or single sex studies that might not be generalizable to the entire working population. The objective of this study was to investigate whether shiftwork was independently associated with obesity, diabetes, poor sleep, and well-being in a large, UK general population cohort. METHODS Participants of the UK Biobank study who were employed at the time of assessment were included. Exposure variables were self-reported shiftwork (any shiftwork and night shiftwork); and outcomes were objectively measured obesity, inflammation and physical activity and self-reported lifestyle, sleep and well-being variables, including mental health. RESULTS Shiftwork was reported by 17% of the 277,168 employed participants. Shiftworkers were more likely to be male, socioeconomically deprived and smokers, and to have higher levels of physical activity. Univariately, and following adjustment for lifestyle and work-related confounders, shiftworkers were more likely to be obese, depressed, to report disturbed sleep, and to have neurotic traits. CONCLUSIONS Shiftwork was independently associated with multiple indicators of poor health and wellbeing, despite higher physical activity, and even in shiftworkers that did not work nights. Shiftwork is an emerging social factor that contributes to disease in the urban environment across the working population. Key messages Studies have linked shiftwork to obesity and diabetes in nurses and industry workers, but little is known about the implications of shiftwork for the general workforce In this large cross sectional study of UK workers, shiftwork was associated with obesity, depression and sleep disturbance, despite higher levels of physical activity. Shiftwork was associated with multiple indicators of compromised health and wellbeing and were more likely to report neurotic traits and evening preference.
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Affiliation(s)
- Cathy A Wyse
- a Department of Molecular and Cellular Therapeutics , Royal College of Surgeons in Ireland (RCSI) , Dublin , Ireland.,b Institute of Biodiversity, Animal Health and Comparative Medicine , University of Glasgow , Glasgow , UK
| | - Carlos A Celis Morales
- c Institute of Cardiovascular and Medical Sciences , University of Glasgow , Glasgow , UK
| | - Nicolas Graham
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
| | - Yu Fan
- c Institute of Cardiovascular and Medical Sciences , University of Glasgow , Glasgow , UK
| | - Joey Ward
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
| | - Anne M Curtis
- a Department of Molecular and Cellular Therapeutics , Royal College of Surgeons in Ireland (RCSI) , Dublin , Ireland
| | - Daniel Mackay
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
| | - Daniel J Smith
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
| | - Mark E S Bailey
- e School of Life Sciences, College of Medical, Veterinary and Life Sciences , University of Glasgow , Glasgow , Scotland
| | - Stephany Biello
- f Institute of Neuroscience & Psychology , University of Glasgow , Glasgow , UK
| | - Jason M R Gill
- c Institute of Cardiovascular and Medical Sciences , University of Glasgow , Glasgow , UK
| | - Jill P Pell
- d Institute of Health and Wellbeing , University of Glasgow , Glasgow , UK
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27
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Celis-Morales CA, Lyall DM, Gray SR, Steell L, Anderson J, Iliodromiti S, Welsh P, Guo Y, Petermann F, Mackay DF, Bailey MES, Pell JP, Gill JMR, Sattar N. Dietary fat and total energy intake modifies the association of genetic profile risk score on obesity: evidence from 48 170 UK Biobank participants. Int J Obes (Lond) 2017; 41:1761-1768. [PMID: 28736445 DOI: 10.1038/ijo.2017.169] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/19/2017] [Accepted: 07/05/2017] [Indexed: 01/19/2023]
Abstract
BACKGROUND Obesity is a multifactorial condition influenced by both genetics and lifestyle. The aim of this study was to investigate whether the association between a validated genetic profile risk score for obesity (GPRS-obesity) and body mass index (BMI) or waist circumference (WC) was modified by macronutrient intake in a large general population study. METHODS This study included cross-sectional data from 48 170 white European adults, aged 37-73 years, participating in the UK Biobank. Interactions between GPRS-obesity and macronutrient intake (including total energy, protein, fat, carbohydrate and dietary fibre intake) and its effects on BMI and WC were investigated. RESULTS The 93-single-nucleotide polymorphism (SNP) GPRS was associated with a higher BMI (β: 0.57 kg m-2 per s.d. increase in GPRS (95% confidence interval: 0.53-0.60); P=1.9 × 10-183) independent of major confounding factors. There was a significant interaction between GPRS and total fat intake (P(interaction)=0.007). Among high-fat-intake individuals, BMI was higher by 0.60 (0.52, 0.67) kg m-2 per s.d. increase in GPRS-obesity; the change in BMI with GPRS was lower among low-fat-intake individuals (β: 0.50 (0.44, 0.57) kg m-2). Significant interactions with similar patterns were observed for saturated fat intake (high β: 0.66 (0.59, 0.73) versus low β: 0.49 (0.42, 0.55) kg m-2, P(interaction)=2 × 10-4) and for total energy intake (high β: 0.58 (0.51, 0.64) versus low β: 0.49 (0.42, 0.56) kg m-2, P(interaction)=0.019), but not for protein intake, carbohydrate intake and fibre intake (P(interaction) >0.05). The findings were broadly similar using WC as the outcome. CONCLUSIONS These data suggest that the benefits of reducing the intake of fats and total energy intake may be more important in individuals with high genetic risk for obesity.
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Affiliation(s)
- C A Celis-Morales
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - D M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - S R Gray
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - L Steell
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - J Anderson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - S Iliodromiti
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - P Welsh
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Y Guo
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - F Petermann
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - D F Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - M E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - J P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - J M R Gill
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - N Sattar
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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Bahey NG, Gadalla KKE, McGonigal R, Bailey MES, Edgar JM, Cobb SR. Reduced axonal diameter of peripheral nerve fibers in a mouse model of Rett syndrome. Neuroscience 2017; 358:261-268. [PMID: 28687309 DOI: 10.1016/j.neuroscience.2017.06.061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 06/27/2017] [Accepted: 06/28/2017] [Indexed: 12/29/2022]
Abstract
Rett syndrome (RTT) is a neurological disorder characterized by motor and cognitive impairment, autonomic dysfunction and a loss of purposeful hand skills. In the majority of cases, typical RTT is caused by de novo mutations in the X-linked gene, MECP2. Alterations in the structure and function of neurons within the central nervous system of RTT patients and Mecp2-null mouse models are well established. In contrast, few studies have investigated the effects of MeCP2-deficiency on peripheral nerves. In this study, we conducted detailed morphometric as well as functional analysis of the sciatic nerves of symptomatic adult female Mecp2+/- mice. We observed a significant reduction in the mean diameter of myelinated nerve fibers in Mecp2+/- mice. In myelinated fibers, mitochondrial densities per unit area of axoplasm were significantly altered in Mecp2+/- mice. However, conduction properties of the sciatic nerve of Mecp2 knockout mice were not different from control. These subtle changes in myelinated peripheral nerve fibers in heterozygous Mecp2 knockout mice could potentially explain some RTT phenotypes.
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Affiliation(s)
- Noha G Bahey
- Institute of Neuroscience and Psychology, University of Glasgow, United Kingdom; Histology Department, Faculty of Medicine, Tanta University, Egypt
| | - Kamal K E Gadalla
- Institute of Neuroscience and Psychology, University of Glasgow, United Kingdom; Pharmacology Department, Faculty of Medicine, Tanta University, Egypt
| | - Rhona McGonigal
- Institute of Infection, Immunity and Inflammation College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom
| | - Julia M Edgar
- Institute of Infection, Immunity and Inflammation College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom
| | - Stuart R Cobb
- Institute of Neuroscience and Psychology, University of Glasgow, United Kingdom.
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Gianfagna F, Grippi C, Ahrens W, Bailey MES, Börnhorst C, De Henauw S, Foraita R, Koni AC, Krogh V, Mårild S, Molnár D, Moreno L, Pitsiladis Y, Russo P, Siani A, Tornaritis M, Veidebaum T, Iacoviello L. The role of neuromedin U in adiposity regulation. Haplotype analysis in European children from the IDEFICS Cohort. PLoS One 2017; 12:e0172698. [PMID: 28235053 PMCID: PMC5325300 DOI: 10.1371/journal.pone.0172698] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 02/08/2017] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND AND AIMS Neuromedin U (NMU) is a hypothalamic neuropeptide with important roles in several metabolic processes, recently suggested as potential therapeutic target for obesity. We analysed the associations between NMU gene variants and haplotypes and body mass index (BMI) in a large sample of European children. METHODS AND RESULTS From a large European multi-center study on childhood obesity, 4,528 children (2.0-9.9 years, mean age 6.0±1.8 SD; boys 52.2%) were randomly selected, stratifying by age, sex and country, and genotyped for tag single nucleotide polymorphisms (SNPs; rs6827359, T:C; rs12500837, T:C; rs9999653,C:T) of NMU gene, then haplotypes were inferred. Regression models were applied to estimate the associations between SNPs or haplotypes and BMI as well as other anthropometric measures. BMI was associated with all NMU SNPs (p<0.05). Among five haplotypes inferred, the haplotype carrying the minor alleles (CCT, frequency = 22.3%) was the only associated with lower BMI values (beta = -0.16, 95%CI:-0.28,-0.04, p = 0.006; z-score, beta = -0.08, 95%CI:-0.14,-0.01, p = 0.019) and decreased risk of overweight/obesity (OR = 0.81, 95%CI:0.68,0.97, p = 0.020) when compared to the most prevalent haplotype (codominant model). Similar significant associations were also observed using the same variables collected after two years' time (BMI, beta = -0.25, 95%CI:-0.41,-0.08, p = 0.004; z-score, beta = -0.10, 95%CI:-0.18,-0.03, p = 0.009; overweight/obesity OR = 0.81, 95%CI:0.66,0.99, p = 0.036). The association was age-dependent in girls (interaction between CCT haplotypes and age, p = 0.008), more evident between 7 and 9 years of age. The CCT haplotype was consistently associated with lower levels of fat mass, skinfold thickness, hip and arm circumferences both at T0 and at T1, after adjustment for multiple testing (FDR-adjusted p<0.05). CONCLUSIONS This study shows an association between a NMU haplotype and anthropometric indices, mainly linked to fat mass, which appears to be age- and sex-specific in children. Genetic variations within or in linkage with this haplotype should be investigated to identify functional variants responsible for the observed phenotypic variation.
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Affiliation(s)
- Francesco Gianfagna
- Laboratory of Molecular and Nutritional Epidemiology, Department of Epidemiology and Prevention, IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Isernia, Italy
- EPIMED Research Center, Department of Clinical and Experimental Medicine, University of Insubria, Varese, Italy
- * E-mail:
| | - Claudio Grippi
- Laboratory of Molecular and Nutritional Epidemiology, Department of Epidemiology and Prevention, IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Isernia, Italy
| | - Wolfgang Ahrens
- Leibniz Institute for Prevention Research and Epidemiology – BIPS, Bremen, Germany
- Faculty of Mathematics and Computer Science, Institute of Statistics, Bremen University, Bremen, Germany
| | - Mark E. S. Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Claudia Börnhorst
- Leibniz Institute for Prevention Research and Epidemiology – BIPS, Bremen, Germany
| | - Stefan De Henauw
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Ronja Foraita
- Leibniz Institute for Prevention Research and Epidemiology – BIPS, Bremen, Germany
| | - Anna C. Koni
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Vittorio Krogh
- Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Staffan Mårild
- Dept. of Paediatrics, Inst. of Clinical Sciences, Sahlgrenska Academy at Gothenburg University, Gothenburg, Sweden
| | - Dénes Molnár
- Department of Paediatrics, Medical Faculty, University of Pécs, Pécs, Hungary
| | - Luis Moreno
- GENUD (Growth, Exercise, Nutrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain
| | - Yannis Pitsiladis
- Centre for Sport and Exercise Science and Medicine, University of Brighton, Brighton, United Kingdom
| | - Paola Russo
- Unit of Epidemiology & Population Genetics, Institute of Food Sciences, CNR, Avellino, Italy
| | - Alfonso Siani
- Unit of Epidemiology & Population Genetics, Institute of Food Sciences, CNR, Avellino, Italy
| | | | - Toomas Veidebaum
- Department of Chronic Diseases, National Institute for Health Development, Tallinn, Estonia
| | - Licia Iacoviello
- Laboratory of Molecular and Nutritional Epidemiology, Department of Epidemiology and Prevention, IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Isernia, Italy
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Lyall DM, Ward J, Ritchie SJ, Davies G, Cullen B, Celis C, Bailey MES, Anderson J, Evans J, Mckay DF, Mcintosh AM, Sattar N, Smith DJ, Deary IJ, Pell JP. Alzheimer disease genetic risk factor APOE e4 and cognitive abilities in 111,739 UK Biobank participants. Age Ageing 2016; 45:511-7. [PMID: 27103599 DOI: 10.1093/ageing/afw068] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 03/02/2016] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND the apolipoprotein (APOE) e4 locus is a genetic risk factor for dementia. Carriers of the e4 allele may be more vulnerable to conditions that are independent risk factors for cognitive decline, such as cardiometabolic diseases. OBJECTIVE we tested whether any association with APOE e4 status on cognitive ability was larger in older ages or in those with cardiometabolic diseases. SUBJECTS UK Biobank includes over 500,000 middle- and older aged adults who have undergone detailed medical and cognitive phenotypic assessment. Around 150,000 currently have genetic data. We examined 111,739 participants with complete genetic and cognitive data. METHODS baseline cognitive data relating to information processing speed, memory and reasoning were used. We tested for interactions with age and with the presence versus absence of type 2 diabetes (T2D), coronary artery disease (CAD) and hypertension. RESULTS in several instances, APOE e4 dosage interacted with older age and disease presence to affect cognitive scores. When adjusted for potentially confounding variables, there was no APOE e4 effect on the outcome variables. CONCLUSIONS future research in large independent cohorts should continue to investigate this important question, which has potential implications for aetiology related to dementia and cognitive impairment.
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Affiliation(s)
- Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 8RZ, UK
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 8RZ, UK
| | - Stuart J Ritchie
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, UK
| | - Gail Davies
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, UK
| | - Breda Cullen
- Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 8RZ, UK
| | - Carlos Celis
- Institute of Cardiometabolic and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Mark E S Bailey
- Institute of Cardiometabolic and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Jana Anderson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 8RZ, UK
| | - Jon Evans
- Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 8RZ, UK
| | - Daniel F Mckay
- Institute of Cardiometabolic and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Andrew M Mcintosh
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, UK
| | - Naveed Sattar
- Institute of Cardiometabolic and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 8RZ, UK
| | - Ian J Deary
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, UK
| | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 8RZ, UK
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31
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Qi Q, Downer MK, Kilpeläinen TO, Taal HR, Barton SJ, Ntalla I, Standl M, Boraska V, Huikari V, Kiefte-de Jong JC, Körner A, Lakka TA, Liu G, Magnusson J, Okuda M, Raitakari O, Richmond R, Scott RA, Bailey MES, Scheuermann K, Holloway JW, Inskip H, Isasi CR, Mossavar-Rahmani Y, Jaddoe VWV, Laitinen J, Lindi V, Melén E, Pitsiladis Y, Pitkänen N, Snieder H, Heinrich J, Timpson NJ, Wang T, Yuji H, Zeggini E, Dedoussis GV, Kaplan RC, Wylie-Rosett J, Loos RJF, Hu FB, Qi L. Dietary Intake, FTO Genetic Variants, and Adiposity: A Combined Analysis of Over 16,000 Children and Adolescents. Diabetes 2015; 64:2467-76. [PMID: 25720386 PMCID: PMC4876751 DOI: 10.2337/db14-1629] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 02/12/2015] [Indexed: 12/26/2022]
Abstract
The FTO gene harbors variation with the strongest effect on adiposity and obesity risk. Previous data support a role for FTO variation in influencing food intake. We conducted a combined analysis of 16,094 boys and girls aged 1-18 years from 14 studies to examine the following: 1) the association between the FTO rs9939609 variant (or a proxy) and total energy and macronutrient intake; and 2) the interaction between the FTO variant and dietary intake, and the effect on BMI. We found that the BMI-increasing allele (minor allele) of the FTO variant was associated with increased total energy intake (effect per allele = 14.3 kcal/day [95% CI 5.9, 22.7 kcal/day], P = 6.5 × 10(-4)), but not with protein, carbohydrate, or fat intake. We also found that protein intake modified the association between the FTO variant and BMI (interactive effect per allele = 0.08 SD [0.03, 0.12 SD], P for interaction = 7.2 × 10(-4)): the association between FTO genotype and BMI was much stronger in individuals with high protein intake (effect per allele = 0.10 SD [0.07, 0.13 SD], P = 8.2 × 10(-10)) than in those with low intake (effect per allele = 0.04 SD [0.01, 0.07 SD], P = 0.02). Our results suggest that the FTO variant that confers a predisposition to higher BMI is associated with higher total energy intake, and that lower dietary protein intake attenuates the association between FTO genotype and adiposity in children and adolescents.
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Affiliation(s)
- Qibin Qi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY Department of Nutrition, Harvard School of Public Health, Boston, MA
| | - Mary K Downer
- Department of Nutrition, Harvard School of Public Health, Boston, MA
| | - Tuomas O Kilpeläinen
- MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke's Hospital and University of Cambridge, Cambridge, U.K. The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - H Rob Taal
- The Generation R Study Group, Erasmus Medical Center, Rotterdam, the Netherlands Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands Department of Pediatrics, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Sheila J Barton
- MRC Lifecourse Epidemiology Unit, Faculty of Medicine, University of Southampton, Southampton, U.K
| | - Ioanna Ntalla
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece Department of Health Sciences, University of Leicester, Leicester, U.K
| | - Marie Standl
- Institute of Epidemiology I, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany
| | - Vesna Boraska
- Wellcome Trust Sanger Institute, Hixton, Cambridge, U.K. Department of Medical Biology, University of Split School of Medicine, Split, Croatia
| | - Ville Huikari
- Institute of Health Sciences, University of Oulu, Oulu, Finland
| | - Jessica C Kiefte-de Jong
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands Global Public Health, Leiden University College, Hague, the Netherlands
| | - Antje Körner
- Pediatric Research Center, Department of Women's & Child Health, University of Leipzig, Leipzig, Germany
| | - Timo A Lakka
- Institute of Biomedicine, Department of Physiology, University of Eastern Finland, Kuopio, Finland Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital and University of Eastern Finland, Kuopio, Finland Kuopio Research Institute of Exercise Medicine, Kuopio, Finland
| | - Gaifen Liu
- Department of Neurology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jessica Magnusson
- Institute of Environmental Medicine, Karolinska Institutet, and Sachs' Children and Youth Hospital, Stockholm, Sweden
| | - Masayuki Okuda
- Graduate School of Science and Engineering, Yamaguchi University, Ube, Japan
| | - Olli Raitakari
- The Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
| | - Rebecca Richmond
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, U.K
| | - Robert A Scott
- MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke's Hospital and University of Cambridge, Cambridge, U.K
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, U.K
| | - Kathrin Scheuermann
- Pediatric Research Center, Department of Women's & Child Health, University of Leipzig, Leipzig, Germany
| | - John W Holloway
- Human Genetics and Medical Genomics, Faculty of Medicine, University of Southampton, Southampton, U.K
| | - Hazel Inskip
- MRC Lifecourse Epidemiology Unit, Faculty of Medicine, University of Southampton, Southampton, U.K
| | - Carmen R Isasi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Yasmin Mossavar-Rahmani
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Vincent W V Jaddoe
- The Generation R Study Group, Erasmus Medical Center, Rotterdam, the Netherlands Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands Department of Pediatrics, Erasmus Medical Center, Rotterdam, the Netherlands
| | | | - Virpi Lindi
- Institute of Biomedicine, Department of Physiology, University of Eastern Finland, Kuopio, Finland
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, and Sachs' Children and Youth Hospital, Stockholm, Sweden
| | - Yannis Pitsiladis
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, U.K
| | - Niina Pitkänen
- The Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
| | - Harold Snieder
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands Georgia Prevention Center, Department of Pediatrics, Georgia Regents University, Augusta, GA
| | - Joachim Heinrich
- Institute of Epidemiology I, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany
| | | | - Tao Wang
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Hinoda Yuji
- Hokkaido Nursing College, Chuo-ku, Sapporo, Japan
| | | | - George V Dedoussis
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Robert C Kaplan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Judith Wylie-Rosett
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Ruth J F Loos
- MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke's Hospital and University of Cambridge, Cambridge, U.K. The Genetics of Obesity and Related Metabolic Traits Program, The Charles Bronfman Institute for Personalized Medicine, The Mindich Child Health and Development Institute, Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York City, NY
| | - Frank B Hu
- Department of Nutrition, Harvard School of Public Health, Boston, MA Department of Epidemiology, Harvard School of Public Health, Boston, MA Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Lu Qi
- Department of Nutrition, Harvard School of Public Health, Boston, MA Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
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Gadalla KKE, Ross PD, Riddell JS, Bailey MES, Cobb SR. Gait analysis in a Mecp2 knockout mouse model of Rett syndrome reveals early-onset and progressive motor deficits. PLoS One 2014; 9:e112889. [PMID: 25392929 PMCID: PMC4231076 DOI: 10.1371/journal.pone.0112889] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 10/16/2014] [Indexed: 11/19/2022] Open
Abstract
Rett syndrome (RTT) is a genetic disorder characterized by a range of features including cognitive impairment, gait abnormalities and a reduction in purposeful hand skills. Mice harbouring knockout mutations in the Mecp2 gene display many RTT-like characteristics and are central to efforts to find novel therapies for the disorder. As hand stereotypies and gait abnormalities constitute major diagnostic criteria in RTT, it is clear that motor and gait-related phenotypes will be of importance in assessing preclinical therapeutic outcomes. We therefore aimed to assess gait properties over the prodromal phase in a functional knockout mouse model of RTT. In male Mecp2 knockout mice, we observed alterations in stride, coordination and balance parameters at 4 weeks of age, before the onset of other overt phenotypic changes as revealed by observational scoring. These data suggest that gait measures may be used as a robust and early marker of MeCP2-dysfunction in future preclinical therapeutic studies.
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Affiliation(s)
- Kamal K. E. Gadalla
- Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
- Pharmacology Department, Faculty of Medicine, Tanta University, Egypt
| | - Paul D. Ross
- Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - John S. Riddell
- Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Mark E. S. Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Stuart R. Cobb
- Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
- * E-mail:
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Wang G, Mikami E, Chiu LL, DE Perini A, Deason M, Fuku N, Miyachi M, Kaneoka K, Murakami H, Tanaka M, Hsieh LL, Hsieh SS, Caporossi D, Pigozzi F, Hilley A, Lee R, Galloway SDR, Gulbin J, Rogozkin VA, Ahmetov II, Yang N, North KN, Ploutarhos S, Montgomery HE, Bailey MES, Pitsiladis YP. Association analysis of ACE and ACTN3 in elite Caucasian and East Asian swimmers. Med Sci Sports Exerc 2014. [PMID: 23190598 DOI: 10.1249/mss.0b013e31827c501f] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE Polymorphic variation in the angiotensin-converting enzyme (ACE) and α-actinin-3 (ACTN3) genes has been reported to be associated with endurance and/or power-related human performance. Our aim was to investigate whether polymorphisms in ACE and ACTN3 are associated with elite swimmer status in Caucasian and East Asian populations. METHODS ACE I/D and ACTN3 R577X genotyping was carried out for 200 elite Caucasian swimmers from European, Commonwealth, Russian, and American cohorts (short and middle distance, ≤400 m, n = 130; long distance, >400 m, n = 70) and 326 elite Japanese and Taiwanese swimmers (short distance, ≤100 m, n = 166; middle distance, 200-400 m, n = 160). Genetic associations were evaluated by logistic regression and other tests accommodating multiple testing adjustment. RESULTS ACE I/D was associated with swimmer status in Caucasians, with the D allele being overrepresented in short-and-middle-distance swimmers under both additive and I-allele-dominant models (permutation test P = 0.003 and P = 0.0005, respectively). ACE I/D was also associated with swimmer status in East Asians. In this group, however, the I allele was overrepresented in the short-distance swimmer group (permutation test P = 0.041 and P = 0.0098 under the additive and the D-allele-dominant models, respectively). ACTN3 R577X was not significantly associated with swimmer status in either Caucasians or East Asians. CONCLUSIONS ACE I/D associations were observed in these elite swimmer cohorts, with different risk alleles responsible for the associations in swimmers of different ethnicities. The functional ACTN3 R577X polymorphism did not show any significant association with elite swimmer status, despite numerous previous reports of associations with "power/sprint" performance in other sports.
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Affiliation(s)
- Guan Wang
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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Celis-Morales CA, Ghouri N, Bailey MES, Sattar N, Gill JMR. Should physical activity recommendations be ethnicity-specific? Evidence from a cross-sectional study of South Asian and European men. PLoS One 2013; 8:e82568. [PMID: 24349313 PMCID: PMC3859604 DOI: 10.1371/journal.pone.0082568] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 11/04/2013] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Expert bodies and health organisations recommend that adults undertake at least 150 min.week(-1) of moderate-intensity physical activity (MPA). However, the underpinning data largely emanate from studies of populations of European descent. It is unclear whether this level of activity is appropriate for other ethnic groups, particularly South Asians, who have increased cardio-metabolic disease risk compared to Europeans. The aim of this study was to explore the level of MPA required in South Asians to confer a similar cardio-metabolic risk profile to that observed in Europeans undertaking the currently recommended MPA level of 150 min.week(-1). METHODS Seventy-five South Asian and 83 European men, aged 40-70, without cardiovascular disease or diabetes had fasted blood taken, blood pressure measured, physical activity assessed objectively (using accelerometry), and anthropometric measures made. Factor analysis was used to summarise measured risk biomarkers into underlying latent 'factors' for glycaemia, insulin resistance, lipid metabolism, blood pressure, and overall cardio-metabolic risk. Age-adjusted regression models were used to determine the equivalent level of MPA (in bouts of ≥ 10 minutes) in South Asians needed to elicit the same value in each factor as Europeans undertaking 150 min.week(-1) MPA. FINDINGS For all factors, except blood pressure, equivalent MPA values in South Asians were significantly higher than 150 min.week(-1); the equivalent MPA value for the overall cardio-metabolic risk factor was 266 (95% CI 185-347) min.week(-1). CONCLUSIONS South Asian men may need to undertake greater levels of MPA than Europeans to exhibit a similar cardio-metabolic risk profile, suggesting that a conceptual case can be made for ethnicity-specific physical activity guidance. Further study is needed to extend these findings to women and to replicate them prospectively in a larger cohort.
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Affiliation(s)
- Carlos A. Celis-Morales
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
- Human Nutrition Research Centre, Institute for Ageing and Health, Newcastle University, Newcastle on Tyne, United Kingdom
| | - Nazim Ghouri
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Mark E. S. Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Jason M. R. Gill
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
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Gianfagna F, Cugino D, Ahrens W, Bailey MES, Bammann K, Herrmann D, Koni AC, Kourides Y, Marild S, Molnár D, Moreno LA, Pitsiladis YP, Russo P, Siani A, Sieri S, Sioen I, Veidebaum T, Iacoviello L. Understanding the links among neuromedin U gene, beta2-adrenoceptor gene and bone health: an observational study in European children. PLoS One 2013; 8:e70632. [PMID: 23936460 PMCID: PMC3731254 DOI: 10.1371/journal.pone.0070632] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 06/20/2013] [Indexed: 01/08/2023] Open
Abstract
Neuromedin U, encoded by the NMU gene, is a hypothalamic neuropeptide that regulates both energy metabolism and bone mass. The beta-2 adrenergic receptor, encoded by the ADRB2 gene, mediates several effects of catecholamine hormones and neurotransmitters in bone. We investigated whether NMU single nucleotide polymorphisms (SNPs) and haplotypes, as well as functional ADRB2 SNPs, are associated with bone stiffness in children from the IDEFICS cohort, also evaluating whether NMU and ADRB2 interact to affect this trait. A sample of 2,274 subjects (52.5% boys, age 6.2±1.8 years) from eight European countries, having data on calcaneus bone stiffness index (SI, mean of both feet) and genotyping (NMU gene: rs6827359, rs12500837, rs9999653; ADRB2 gene: rs1042713, rs1042714), was studied. After false discovery rate adjustment, SI was significantly associated with all NMU SNPs. rs6827359 CC homozygotes showed the strongest association (recessive model, Δ = −1.8, p = 0.006). Among the five retrieved haplotypes with frequencies higher than 1% (range 2.0–43.9%), the CCT haplotype (frequency = 39.7%) was associated with lower SI values (dominant model, Δ = −1.0, p = 0.04) as compared to the most prevalent haplotype. A non-significant decrease in SI was observed in in ADRB2 rs1042713 GG homozygotes, while subjects carrying SI-lowering genotypes at both SNPs (frequency = 8.4%) showed much lower SI than non-carriers (Δ = −3.9, p<0.0001; p for interaction = 0.025). The association was more evident in preschool girls, in whom SI showed a curvilinear trend across ages. In subgroup analyses, rs9999653 CC NMU or both GG ADRB2 genotypes were associated with either lower serum calcium or β-CrossLaps levels (p = 0.01). This study in European children shows, for the first time in humans, a role for NMU gene through interaction with ADRB2 gene in bone strength regulation, more evident in preschool girls.
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Affiliation(s)
- Francesco Gianfagna
- Research Laboratories, Fondazione di Ricerca e Cura “Giovanni Paolo II”, Università Cattolica del Sacro Cuore, Campobasso, Italy
| | | | - Wolfgang Ahrens
- Department of Epidemiological Methods and Etiologic Research, Leibniz-Institute for Prevention Research and Epidemiology - BIPS GmbH, Bremen, Germany
- Department of Mathematics and Computer Sciences, University of Bremen, Bremen, Germany
| | - Mark E. S. Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Karin Bammann
- Department of Epidemiological Methods and Etiologic Research, Leibniz-Institute for Prevention Research and Epidemiology - BIPS GmbH, Bremen, Germany
- Institute for Public Health and Nursing Research, University of Bremen, Bremen, Germany
| | - Diana Herrmann
- Department of Epidemiological Methods and Etiologic Research, Leibniz-Institute for Prevention Research and Epidemiology - BIPS GmbH, Bremen, Germany
| | - Anna C. Koni
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Yiannis Kourides
- Research and Education Institute of Child Health, Strovolos, Cyprus
| | - Staffan Marild
- Department of Pediatrics, Institute of Clinical Sciences, The Queen Silvia Children’s Hospital, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden
| | - Dénes Molnár
- Department of Pediatrics, University of Pécs, Pécs, Hungary
| | - Luis A. Moreno
- GENUD (Growth, Exercise, NUtrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain
| | - Yannis P. Pitsiladis
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Paola Russo
- Epidemiology & Population Genetics, Institute of Food Sciences, CNR, Avellino, Italy
| | - Alfonso Siani
- Epidemiology & Population Genetics, Institute of Food Sciences, CNR, Avellino, Italy
| | - Sabina Sieri
- Department of Preventive and Predictive Medicine, Nutritional Epidemiology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Isabelle Sioen
- Department of Public Health, Ghent University, Ghent, Belgium
- FWO, Research Foundation Flanders, Brussels, Belgium
| | - Toomas Veidebaum
- Center of Health and Behavioral Science, National Institute for Health Development, Tallinn, Estonia
| | - Licia Iacoviello
- Casa di Cura Montevergine, Mercogliano (AV), Italy
- Department of Epidemiology and Prevention, IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli (IS), Italy
- * E-mail:
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Gadalla KKE, Bailey MES, Spike RC, Ross PD, Woodard KT, Kalburgi SN, Bachaboina L, Deng JV, West AE, Samulski RJ, Gray SJ, Cobb SR. Improved survival and reduced phenotypic severity following AAV9/MECP2 gene transfer to neonatal and juvenile male Mecp2 knockout mice. Mol Ther 2012; 21:18-30. [PMID: 23011033 DOI: 10.1038/mt.2012.200] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Typical Rett syndrome (RTT) is a pediatric disorder caused by loss-of-function mutations in the methyl-CpG binding protein 2 (MECP2) gene. The demonstrated reversibility of RTT-like phenotypes in mice suggests that MECP2 gene replacement is a potential therapeutic option in patients. We report improvements in survival and phenotypic severity in Mecp2-null male mice after neonatal intracranial delivery of a single-stranded (ss) AAV9/chicken β-actin (CBA)-MECP2 vector. Median survival was 16.6 weeks for MECP2-treated versus 9.3 weeks for green fluorescent protein (GFP)-treated mice. ssAAV9/CBA-MECP2-treated mice also showed significant improvement in the phenotype severity score, in locomotor function, and in exploratory activity, as well as a normalization of neuronal nuclear volume in transduced cells. Wild-type (WT) mice receiving neonatal injections of the same ssAAV9/CBA-MECP2 vector did not show any significant deficits, suggesting a tolerance for modest MeCP2 overexpression. To test a MECP2 gene replacement approach in a manner more relevant for human translation, a self-complementary (sc) adeno-associated virus (AAV) vector designed to drive MeCP2 expression from a fragment of the Mecp2 promoter was injected intravenously (IV) into juvenile (4-5 weeks old) Mecp2-null mice. While the brain transduction efficiency in juvenile mice was low (~2-4% of neurons), modest improvements in survival were still observed. These results support the concept of MECP2 gene therapy for RTT.
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Affiliation(s)
- Kamal K E Gadalla
- Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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Abstract
Rett syndrome (RTT), a neurodevelopmental condition characterized by delayed-onset loss of spoken language and the development of distinctive hand stereotypies, affects approximately 1 in 10,000 live female births. Clinical diagnosis has been based on symptoms such as loss of acquired purposeful hand skills, autistic behaviors, motor dysfunctions, seizure disorders, and gait abnormalities. RTT is a genetic disease and is caused almost exclusively by mutations in the X-linked gene, MECP2, to produce a phenotype that is thought to be primarily of neurological origin. Clinical reports show RTT patients to have a smaller brain volume, especially in the cerebral hemispheres, and alterations in various neurotransmitter systems, including acetylcholine, dopamine, serotonin, glutamate, substance P, and various trophic factors. Because of its monogenetic characteristic, disruption of Mecp2 is readily recapitulated in mice to produce a prominent RTT-like phenotype and provide an excellent platform for understanding the pathogenesis of RTT. As shown in human studies, Mecp2 mutants also display subtle alterations in neuronal morphology, including smaller cortical neurons with a higher-packing density and reduced dendritic complexity. Neurophysiological studies in Mecp2-mutant mice consistently report alterations in synaptic function, notably, defects in synaptic plasticity. These data suggest that RTT might be regarded as a synaptopathy (disease of the synapse) and thus potentially amenable to rational therapeutic intervention.
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Affiliation(s)
- Shih-Ming Weng
- Institute for Neuroscience and Psychology, University of Glasgow, Glasgow, United Kingdom
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Celis-Morales CA, Perez-Bravo F, Ibañes L, Sanzana R, Hormazabal E, Ulloa N, Calvo C, Bailey MES, Gill JMR. Insulin resistance in Chileans of European and indigenous descent: evidence for an ethnicity x environment interaction. PLoS One 2011; 6:e24690. [PMID: 21931814 PMCID: PMC3169638 DOI: 10.1371/journal.pone.0024690] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Accepted: 08/18/2011] [Indexed: 12/24/2022] Open
Abstract
Background Effects of urbanisation on diabetes risk appear to be greater in indigenous populations worldwide than in populations of European origin, but the reasons are unclear. This cross-sectional study aimed to determine whether the effects of environment (Rural vs. Urban), adiposity, fitness and lifestyle variables on insulin resistance differed between individuals of indigenous Mapuche origin compared to those of European origin in Chile. Methodology/Principal Findings 123 Rural Mapuche, 124 Urban Mapuche, 91 Rural European and 134 Urban European Chilean adults had blood taken for determination of HOMA-estimated insulin resistance (HOMAIR) and underwent assessment of physical activity/sedentary behaviour (using accelerometry), cardiorespiratory fitness, dietary intake and body composition. General linear models were used to determine interactions with ethnicity for key variables. There was a significant “ethnicity x environment” interaction for HOMAIR (Mean±SD; Rural Mapuche: 1.65±2.03, Urban Mapuche: 4.90±3.05, Rural European: 0.82±0.61, Urban European: 1.55±1.34, p(interaction) = 0.0003), such that the effect of urbanisation on HOMAIR was greater in Mapuches than Europeans. In addition, there were significant interactions (all p<0.004) with ethnicity for effects of adiposity, sedentary time and physical activity on HOMAIR, with greater effects seen in Mapuches compared to Europeans, an observation that persisted after adjustment for potential confounders. Conclusions/Significance Urbanisation, adiposity, physical activity and sedentary behaviour influence insulin resistance to a greater extent in Chilean Mapuches than Chileans of European descent. These findings have implications for the design and implementation of lifestyle strategies to reduce metabolic risk in different ethnic groups, and for understanding of the mechanisms underpinning human insulin resistance.
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Affiliation(s)
- Carlos A. Celis-Morales
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Francisco Perez-Bravo
- Laboratory of Nutritional Genomics, Department of Nutrition, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Luis Ibañes
- Center of Nutrition, Metabolism and Physical Activity (CNEF), Concepcion, Chile
| | - Ruth Sanzana
- Center of Nutrition, Metabolism and Physical Activity (CNEF), Concepcion, Chile
| | - Edison Hormazabal
- Center of Nutrition, Metabolism and Physical Activity (CNEF), Concepcion, Chile
| | - Natalia Ulloa
- Department of Clinical Biochemistry and Immunology, Universidad de Concepción, Concepción, Chile
| | - Carlos Calvo
- Department of Clinical Biochemistry and Immunology, Universidad de Concepción, Concepción, Chile
| | - Mark E. S. Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Jason M. R. Gill
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
- * E-mail:
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Koni AC, Scott RA, Wang G, Bailey MES, Peplies J, Bammann K, Pitsiladis YP. DNA yield and quality of saliva samples and suitability for large-scale epidemiological studies in children. Int J Obes (Lond) 2011; 35 Suppl 1:S113-8. [PMID: 21483410 DOI: 10.1038/ijo.2011.43] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To evaluate two saliva collection methods for DNA yield and quality as applied to a large, integrated, multicentre, European project involving the collection of biological material from children. DESIGN Cross-sectional multicentre comparative study in young children. METHODS Saliva samples were collected from 14,019 children aged 2-9 years from eight European countries participating in the IDEFICS (Identification and prevention of dietary- and lifestyle-induced health effects in children and infants) study. This involved either the collection of 2 ml of saliva from children who were able to spit, or using a sponge to collect whole saliva and buccal mucosal cells from the inside of the mouth of younger children unable to spit. Samples were assembled centrally in each participating centre and subsequently despatched for DNA extraction and biobanking to the University of Glasgow. A subgroup of 4678 samples (∼33% of sampled individuals) were chosen for DNA extraction before genotyping. RESULTS The whole-saliva collection method resulted in a higher DNA yield than the sponge collection method (mean±s.d.; saliva: 20.95±2.35 μg, sponge: 9.13±2.25 μg; P<0.001). DNA quality as measured by A (260)/A (280) was similar for the two collection methods. A minimum genotype calling success rate of 95% showed that both methods provide good-quality DNA for genotyping using TaqMan allelic discrimination assays. CONCLUSIONS Our results showed higher DNA yield from the whole-saliva collection method compared with the assisted sponge collection. However, both collection methods provided DNA of sufficient quantity and quality for large-scale genetic epidemiological studies.
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Affiliation(s)
- A C Koni
- College of Medicine, Veterinary and Life Sciences, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Scotland, UK
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Neul JL, Kaufmann WE, Glaze DG, Christodoulou J, Clarke AJ, Bahi-Buisson N, Leonard H, Bailey MES, Schanen NC, Zappella M, Renieri A, Huppke P, Percy AK. Rett syndrome: revised diagnostic criteria and nomenclature. Ann Neurol 2011; 68:944-50. [PMID: 21154482 DOI: 10.1002/ana.22124] [Citation(s) in RCA: 862] [Impact Index Per Article: 66.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Rett syndrome (RTT) is a severe neurodevelopmental disease that affects approximately 1 in 10,000 live female births and is often caused by mutations in Methyl-CpG-binding protein 2 (MECP2). Despite distinct clinical features, the accumulation of clinical and molecular information in recent years has generated considerable confusion regarding the diagnosis of RTT. The purpose of this work was to revise and clarify 2002 consensus criteria for the diagnosis of RTT in anticipation of treatment trials. METHOD RettSearch members, representing the majority of the international clinical RTT specialists, participated in an iterative process to come to a consensus on a revised and simplified clinical diagnostic criteria for RTT. RESULTS The clinical criteria required for the diagnosis of classic and atypical RTT were clarified and simplified. Guidelines for the diagnosis and molecular evaluation of specific variant forms of RTT were developed. INTERPRETATION These revised criteria provide clarity regarding the key features required for the diagnosis of RTT and reinforce the concept that RTT is a clinical diagnosis based on distinct clinical criteria, independent of molecular findings. We recommend that these criteria and guidelines be utilized in any proposed clinical research.
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Affiliation(s)
- Jeffrey L Neul
- Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA.
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Todd AJ, Polgár E, Watt C, Bailey MES, Watanabe M. Neurokinin 1 receptor-expressing projection neurons in laminae III and IV of the rat spinal cord have synaptic AMPA receptors that contain GluR2, GluR3 and GluR4 subunits. Eur J Neurosci 2009; 29:718-26. [PMID: 19200070 PMCID: PMC2695158 DOI: 10.1111/j.1460-9568.2009.06633.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPArs), which mediate fast excitatory glutamatergic transmission, are tetramers made from four subunits (GluR1-4 or GluRA-D). Although synaptic AMPArs are not normally detected by immunocytochemistry in perfusion-fixed tissue, they can be revealed by using antigen retrieval with pepsin. All AMPAr-positive synapses in spinal cord are thought to contain GluR2, while the other subunits have specific laminar distributions. GluR4 can be alternatively spliced such that it has a long or short cytoplasmic tail. We have reported that <10% of AMPAr-containing synapses in lamina II have the long form of GluR4, and that these are often arranged in dorsoventrally orientated clusters. In this study, we test the hypothesis that GluR4-containing receptors are associated with dorsal dendrites of projection neurons in laminae III and IV that express the neurokinin 1 receptor (NK1r). Immunostaining for NK1r was carried out before antigen retrieval, and sections were then reacted to reveal GluR2 and either GluR4 (long form), GluR3 or GluR1. All NK1r-positive lamina III/IV neurons had numerous GluR2-immunoreactive puncta in their dendritic plasma membranes, and virtually all (97%) of the puncta tested were labelled (usually strongly) with the GluR4 antibody. Sizes of puncta varied, but many were elongated and they were significantly larger than nearby puncta that were not associated with the NK1r cells. None of the GluR2 puncta on these cells was positive for GluR1, while 85% were GluR3-immunoreactive. These results show that synaptic AMPArs on the dendrites of the lamina III/IV NK1r projection neurons contain GluR2, GluR3 and GluR4, but not GluR1 subunits.
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Affiliation(s)
- Andrew J Todd
- Neuroscience and Molecular Pharmacology, Faculty of Biomedical and Life Sciences, University of Glasgow, Glasgow, UK.
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Lagou V, Manios Y, Moran CN, Bailey MES, Grammatikaki E, Oikonomou E, Ioannou E, Moschonis G, Wilson RH, Pitsiladis YP. Developmental changes in adiposity in toddlers and preschoolers in the GENESIS study and associations with the ACE I/D polymorphism. Int J Obes (Lond) 2007; 31:1052-60. [PMID: 17406273 DOI: 10.1038/sj.ijo.0803605] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVES To investigate the relationship between the angiotensin I-converting enzyme 1 (ACE) I/D polymorphism and adiposity-related phenotypes in a large cohort of toddlers and preschoolers. METHODS Body composition measurements and DNA samples were obtained from 2102 Greek children aged 1-6 years, as part of a large-scale epidemiological study (GENESIS). All children were genotyped for the ACE I/D polymorphism and gender- and age-stratified statistical analyses were performed. RESULTS In girls aged 4-6 years, the D-allele was associated with higher measurements of body mass index (BMI) (P=0.018), waist (P=0.001) and upper arm (P=0.013) circumferences, genotype accounting for 2.5, 4 and 3% of the phenotypic variance, respectively. In boys, the D-allele showed strong associations with lower BMI (P=0.001) at the age of 1-2 years that explained 17% of the phenotypic variance and with larger suprailiac skinfold (P=0.008) at 3-4 years old that explained 2% of the variance. No other significant associations between the ACE I/D polymorphism and adiposity-related phenotypes were found. In girls, the age at which significant associations were revealed coincided with the age at which BMI was observed to increase after its developmental nadir, but this feature of the association was not observed in boys. CONCLUSIONS The ACE I/D polymorphism is associated with developmental and physiological changes in adiposity-related traits during early childhood in a gender- and age-specific manner.
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Affiliation(s)
- V Lagou
- Faculty of Biomedical and Life Sciences, Institute of Diet, Exercise and Lifestyle, University of Glasgow, Glasgow, UK
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Moran CN, Yang N, Bailey MES, Tsiokanos A, Jamurtas A, MacArthur DG, North K, Pitsiladis YP, Wilson RH. Association analysis of the ACTN3 R577X polymorphism and complex quantitative body composition and performance phenotypes in adolescent Greeks. Eur J Hum Genet 2006; 15:88-93. [PMID: 17033684 DOI: 10.1038/sj.ejhg.5201724] [Citation(s) in RCA: 129] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The functional allele (577R) of ACTN3, which encodes human alpha-actinin-3, has been reported to be associated with elite athletic status and with response to resistance training, while the nonfunctional allele (577X) has been proposed as a candidate metabolically thrifty allele. In a study of 992 adolescent Greeks, we show that there is a significant association (P=0.003) between the ACTN3 R577X polymorphism and 40 m sprint time in males that accounts for 2.3% of phenotypic variance, with the 577R allele contributing to faster times in an additive manner. The R577X polymorphism is not associated with other power phenotypes related to 40 m sprint, nor with an endurance phenotype. Furthermore, the polymorphism is not associated with obesity-related phenotypes in our population, suggesting that the 577X allele is not a thrifty allele, and thus the persistence of this null allele must be explained in other terms.
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Affiliation(s)
- Colin N Moran
- Institute of Diet, Exercise and Lifestyle (IDEAL) and Division of Molecular Genetics, Faculty of Biomedical & Life Sciences, University of Glasgow, Glasgow, UK
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Archer H, Evans J, Leonard H, Colvin L, Ravine D, Christodoulou J, Williamson S, Charman T, Bailey MES, Sampson J, de Klerk N, Clarke A. Correlation between clinical severity in patients with Rett syndrome with a p.R168X or p.T158M MECP2 mutation, and the direction and degree of skewing of X-chromosome inactivation. J Med Genet 2006; 44:148-52. [PMID: 16905679 PMCID: PMC2598067 DOI: 10.1136/jmg.2006.045260] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Rett syndrome (RTT) is an X-linked dominant neurodevelopmental disorder that is usually associated with mutations in the MECP2 gene. The most common mutations in the gene are p.R168X and p.T158M. The influence of X-chromosome inactivation (XCI) on clinical severity in patients with RTT with these mutations was investigated, taking into account the extent and direction of skewing. METHODS Female patients and their parents were recruited from the UK and Australia. Clinical severity was measured by the Pineda Severity and Kerr profile scores. The degree of XCI and its direction relative to the X chromosome parent of origin were measured in DNA prepared from peripheral blood leucocytes, and allele-specific polymerase chain reaction was used to determine the parental origin of mutation. Combining these, the percentage of cells expected to express the mutant allele was calculated. RESULTS Linear regression analysis was undertaken for fully informative cases with p.R168X (n = 23) and p.T158M (n = 20) mutations. A statistically significant increase in clinical severity with increase in the proportion of active mutated allele was shown for both the p.R168X and p.T158M mutations. CONCLUSIONS XCI may vary in neurological and haematological tissues. However, these data are the first to show a relationship between the degree and direction of XCI in leucocytes and clinical severity in RTT, although the clinical utility of this in giving a prognosis for individual patients is unclear.
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Affiliation(s)
- Hayley Archer
- Institute of Medical Genetics, Cardiff University, University Hospital of Wales, Cardiff, UK
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Knudsen GPS, Neilson TCS, Pedersen J, Kerr A, Schwartz M, Hulten M, Bailey MES, Orstavik KH. Increased skewing of X chromosome inactivation in Rett syndrome patients and their mothers. Eur J Hum Genet 2006; 14:1189-94. [PMID: 16823396 DOI: 10.1038/sj.ejhg.5201682] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Rett syndrome is a largely sporadic, X-linked neurological disorder with a characteristic phenotype, but which exhibits substantial phenotypic variability. This variability has been partly attributed to an effect of X chromosome inactivation (XCI). There have been conflicting reports regarding incidence of skewed X inactivation in Rett syndrome. In rare familial cases of Rett syndrome, favourably skewed X inactivation has been found in phenotypically normal carrier mothers. We have investigated the X inactivation pattern in DNA from blood and buccal cells of sporadic Rett patients (n=96) and their mothers (n=84). The mean degree of skewing in blood was higher in patients (70.7%) than controls (64.9%). Unexpectedly, the mothers of these patients also had a higher mean degree of skewing in blood (70.8%) than controls. In accordance with these findings, the frequency of skewed (XCI > or =80%) X inactivation in blood was also higher in both patients (25%) and mothers (30%) than in controls (11%). To test whether the Rett patients with skewed X inactivation were daughters of skewed mothers, 49 mother-daughter pairs were analysed. Of 14 patients with skewed X inactivation, only three had a mother with skewed X inactivation. Among patients, mildly affected cases were shown to be more skewed than more severely affected cases, and there was a trend towards preferential inactivation of the paternally inherited X chromosome in skewed cases. These findings, particularly the greater degree of X inactivation skewing in Rett syndrome patients, are of potential significance in the analysis of genotype-phenotype correlations in Rett syndrome.
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Affiliation(s)
- Gun Peggy S Knudsen
- Faculty Division Rikshospitalet, Department of Medical Genetics, University of Oslo, Oslo, Norway.
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Moran CN, Vassilopoulos C, Tsiokanos A, Jamurtas AZ, Bailey MES, Montgomery HE, Wilson RH, Pitsiladis YP. The associations of ACE polymorphisms with physical, physiological and skill parameters in adolescents. Eur J Hum Genet 2006; 14:332-9. [PMID: 16391565 DOI: 10.1038/sj.ejhg.5201550] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Genetic variation in the human Angiotensin I-Converting Enzyme (ACE) gene has been associated with many heritable traits, including physical performance. Herein we report the results of a study of several physical, physiological and skill parameters and lifestyle in 1,027 teenage Greeks. We show that there is a strong association (P < 0.001) between the ACE I/D (insertion/deletion) polymorphism and both handgrip strength and vertical jump in females, homozygotes for the I-allele exhibiting higher performance-related phenotype scores, accounting for up to 4.5% of the phenotypic variance. The association is best explained by a model in which the D-allele is dominant, with the mean phenotypic value in the I/D heterozygotes being close to that of the mean of the DD homozygotes. The association acts across the phenotype distribution in a classical polygenic manner. Other polymorphisms that define major ACE haplotypes in European populations (rs4424958, rs4311) show weaker associations with these performance-related phenotypes than does I/D. Similarly, diplotypes defined by these polymorphisms do not explain significantly larger amounts of the variance than I/D alone. As ACE I/D is the polymorphism most strongly associated with circulating ACE activity in European populations, we propose that the functional allelic differences that influence ACE activity also mediate the associations with the performance-related phenotypes studied here.
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Affiliation(s)
- Colin N Moran
- Institute of Diet, Exercise and Lifestyle, IDEAL, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow, UK
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Moran CN, Vassilopoulos C, Tsiokanos A, Jamurtas AZ, Bailey MES, Wilson RH, Pitsiladis YP. Effects of interaction between angiotensin I-converting enzyme polymorphisms and lifestyle on adiposity in adolescent Greeks. ACTA ACUST UNITED AC 2005; 13:1499-504. [PMID: 16222048 DOI: 10.1038/oby.2005.181] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Genetic variation in the human angiotensin I-converting enzyme (ACE) gene has been associated with many heritable traits, including obesity. Herein, we report the results of a study of obesity-related phenotypes and lifestyle in 1016 teen-aged Greeks. We show that there is a strong association (p = 0.001) between subcutaneous fat and the ACE insertion/deletion (I/D) polymorphism in females, possession of genotypes containing the D allele being associated with increased fat thickness. This association is strongest in females who participate in no extra exercise and accounts for 6.5% of the phenotypic variance in fat thickness by ANOVA. The association is additive, with the mean phenotypic values in heterozygotes intermediate between the means of the two homozygotes, and the association acts at both extremes of the fat thickness distribution in a classical polygenic manner. Other ACE polymorphisms (rs4424958, rs4311) that define major haplotypes in European populations fail to provide stronger associations with the subcutaneous fat phenotype. Because ACE I/D is the polymorphism most strongly associated with circulating ACE levels in European populations, we propose that the functional allelic differences that influence circulating ACE levels also mediate the associations with the obesity-related phenotypes studied here.
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Affiliation(s)
- Colin N Moran
- Division of Neurosciences, Faculty of Biomedical and Life Sciences, University of Glasgow, Glasgow, United Kingdom
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Charman T, Neilson TCS, Mash V, Archer H, Gardiner MT, Knudsen GPS, McDonnell A, Perry J, Whatley SD, Bunyan DJ, Ravn K, Mount RH, Hastings RP, Hulten M, Orstavik KH, Reilly S, Cass H, Clarke A, Kerr AM, Bailey MES. Dimensional phenotypic analysis and functional categorisation of mutations reveal novel genotype-phenotype associations in Rett syndrome. Eur J Hum Genet 2005; 13:1121-30. [PMID: 16077736 DOI: 10.1038/sj.ejhg.5201471] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
We aimed to improve the understanding of genotype-phenotype correlations in Rett syndrome (RS) by adopting a novel approach to categorising phenotypic dimensions - separating typicality of presentation, outcome severity and age of onset - and by classifying MECP2 mutations strictly by predicted functional attributes. MECP2 mutation screening results were available on 190 patients with a clinical diagnosis of RS (140 cases with classic RS, 50 with atypical RS). 135 cases had identified mutations. Of the 140 patients, 116 with classic RS (82.9%) had an identified mutation compared with 19 of 50 patients (38%) with an atypical presentation. Cases with early onset of regression and seizures, and those with clinical features that might indicate alternative aetiologies, were less likely to have mutations. Individuals with late truncating mutations had a less typical presentation than cases with missense and early truncating mutations, presumably reflecting greater residual function of MECP2 protein. Individuals with early truncating mutations had a more severe outcome than cases with missense and late truncating mutations. These findings held when restricting the analysis to cases over 15 years of age and classic cases only. Previous findings of variation in severity among the common mutations were confirmed. The approach to phenotypic and genotypic classification adopted here allowed us to identify genotype-phenotype associations in RS that may aid our understanding of pathogenesis and also contribute to clinical knowledge on the impact of different types of mutations.
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Affiliation(s)
- Tony Charman
- Institute of Child Health, University College London, London, UK.
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Jian L, Archer HL, Ravine D, Kerr A, de Klerk N, Christodoulou J, Bailey MES, Laurvick C, Leonard H. p.R270X MECP2 mutation and mortality in Rett syndrome. Eur J Hum Genet 2005; 13:1235-8. [PMID: 16077729 DOI: 10.1038/sj.ejhg.5201479] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Among cases in the Australian Rett Syndrome Database, the nonsense mutation p.R270X is one of the most commonly occurring single pathogenic MECP2 mutations. In two recent published reports of the MECP2 mutational spectrum the p.R270X appeared to be under represented. We hypothesised that increased mortality arising from this mutation may underlie this apparent discrepancy. We investigated our hypothesis in two independent study groups from Australia and the UK with prospective data collections (total n=524). Only females with Rett syndrome and an identified MECP2 mutation were included. Significant differences in survival were detected among Rett syndrome cases grouped for the eight most frequent mutations (log-rank chi(2) (7)=15.71, P=0.03). Moreover, survival among cases with p.R270X, when compared with survival among cases with all the other mutations was reduced (log-rank chi(2) (2)=6.94, P=0.01). Our observation of a reduced survival associated with the p.R270X mutation offers an explanation for the under representation of p.R270X in older subjects with Rett syndrome.
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Affiliation(s)
- Le Jian
- Telethon Institute for Child Health Research, Centre for Child Health Research, The University of Western Australia, Perth, Western Australia, Australia
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