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Huang Y, Ollikainen M, Muniandy M, Zhang T, van Dongen J, Hao G, van der Most PJ, Pan Y, Pervjakova N, Sun YV, Hui Q, Lahti J, Fraszczyk E, Lu X, Sun D, Richard MA, Willemsen G, Heikkila K, Leach IM, Mononen N, Kähönen M, Hurme MA, Raitakari OT, Drake AJ, Perola M, Nuotio ML, Huang Y, Khulan B, Räikkönen K, Wolffenbuttel BHR, Zhernakova A, Fu J, Zhu H, Dong Y, van Vliet-Ostaptchouk JV, Franke L, Eriksson JG, Fornage M, Milani L, Lehtimäki T, Vaccarino V, Boomsma DI, van der Harst P, de Geus EJC, Salomaa V, Li S, Chen W, Su S, Wilson J, Snieder H, Kaprio J, Wang X. Identification, Heritability, and Relation With Gene Expression of Novel DNA Methylation Loci for Blood Pressure. Hypertension 2020; 76:195-205. [PMID: 32520614 PMCID: PMC7295009 DOI: 10.1161/hypertensionaha.120.14973] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/23/2020] [Indexed: 02/05/2023]
Abstract
We conducted an epigenome-wide association study meta-analysis on blood pressure (BP) in 4820 individuals of European and African ancestry aged 14 to 69. Genome-wide DNA methylation data from peripheral leukocytes were obtained using the Infinium Human Methylation 450k BeadChip. The epigenome-wide association study meta-analysis identified 39 BP-related CpG sites with P<1×10-5. In silico replication in the CHARGE consortium of 17 010 individuals validated 16 of these CpG sites. Out of the 16 CpG sites, 13 showed novel association with BP. Conversely, out of the 126 CpG sites identified as being associated (P<1×10-7) with BP in the CHARGE consortium, 21 were replicated in the current study. Methylation levels of all the 34 CpG sites that were cross-validated by the current study and the CHARGE consortium were heritable and 6 showed association with gene expression. Furthermore, 9 CpG sites also showed association with BP with P<0.05 and consistent direction of the effect in the meta-analysis of the Finnish Twin Cohort (199 twin pairs and 4 singletons; 61% monozygous) and the Netherlands Twin Register (266 twin pairs and 62 singletons; 84% monozygous). Bivariate quantitative genetic modeling of the twin data showed that a majority of the phenotypic correlations between methylation levels of these CpG sites and BP could be explained by shared unique environmental rather than genetic factors, with 100% of the correlations of systolic BP with cg19693031 (TXNIP) and cg00716257 (JDP2) determined by environmental effects acting on both systolic BP and methylation levels.
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Affiliation(s)
- Yisong Huang
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Miina Ollikainen
- Institute for Molecular Medicine FIMM, HiLIFE, University of Helsinki, PO Box 20 (Tukholmankatu 8), Helsinki, Finland
- Department of Public Health, Faculty of Medicine, University of Helsinki, PO Box 20 (Tukholmankatu 8), Helsinki, Finland
| | - Maheswary Muniandy
- Institute for Molecular Medicine FIMM, HiLIFE, University of Helsinki, PO Box 20 (Tukholmankatu 8), Helsinki, Finland
| | - Tao Zhang
- Department of Biostatistics, Shandong University School of Public Health, Jinan, China
| | - Jenny van Dongen
- Department of Biological Psychology, Amsterdam Public Health research institute, Vrije Universiteit Amsterdam, Van der Boechorststraat 7-9, 1081BT, Amsterdam, The Netherlands
| | - Guang Hao
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Peter J. van der Most
- University of Groningen, University Medical Center Groningen, Groningen, Department of Epidemiology, the Netherlands
| | - Yue Pan
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Natalia Pervjakova
- Estonian Genome Center, Institute of Genomics, University of Tartu, 23 Riia Street, 51010, Tartu, Estonia
| | - Yan V. Sun
- Department of Epidemiology, Emory Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Qin Hui
- Department of Epidemiology, Emory Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Jari Lahti
- Turku Institute for Advanced Studies, University of Turku, Turku, Finland
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Eliza Fraszczyk
- University of Groningen, University Medical Center Groningen, Groningen, Department of Epidemiology, the Netherlands
| | - Xueling Lu
- University of Groningen, University Medical Center Groningen, Groningen, Department of Epidemiology, the Netherlands
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 515041, Guangdong, China
| | - Dianjianyi Sun
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Melissa A. Richard
- Department of Pediatrics, Section of Hematology/Oncology, Baylor College of Medicine
| | - Gonneke Willemsen
- Department of Biological Psychology, Amsterdam Public Health research institute, Vrije Universiteit Amsterdam, Van der Boechorststraat 7-9, 1081BT, Amsterdam, The Netherlands
| | - Kauko Heikkila
- Institute for Molecular Medicine FIMM, HiLIFE, University of Helsinki, PO Box 20 (Tukholmankatu 8), Helsinki, Finland
| | - Irene Mateo Leach
- University of Groningen, University Medical Center Groningen, Groningen, Department of Cardiology, the Netherlands
| | - Nina Mononen
- Department of Clinical Chemistry, Finnish Cardiovascular Research Center - Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere 33014, Finland; Department of Clinical Chemistry, Fimlab Laboratories, Tampere 33520, Finland
| | - Mika Kähönen
- Department of Clinical Physiology, Finnish Cardiovascular Research Center – Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere 33014, Finland; Department of Clinical Physiology, Tampere University Hospital, Tampere 33521
| | - Mikko A. Hurme
- Department of Microbiology and Immunology, Faculty of Medicine and Health Technology, Tampere University, Tampere 33014, Finland
| | - Olli T. Raitakari
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku 20520, Finland
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku 20014, Finland
| | - Amanda J Drake
- University/British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, UK
| | - Markus Perola
- National Institute for Health and Welfare, P.O. Box 30, 00271 Helsinki, Finland
| | - Marja-Liisa Nuotio
- National Institute for Health and Welfare, P.O. Box 30, 00271 Helsinki, Finland
| | - Yunfeng Huang
- Department of Epidemiology, Emory Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Batbayar Khulan
- University/British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, UK
| | - Katri Räikkönen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Bruce HR Wolffenbuttel
- University of Groningen, University Medical Center Groningen, Department of Endocrinology, the Netherlands
| | - Alexandra Zhernakova
- University of Groningen, University Medical Center Groningen, Department of Genetics, Groningen, The Netherlands
| | - Jingyuan Fu
- University of Groningen, University Medical Center Groningen, Department of Genetics, Groningen, The Netherlands
- University of Groningen and University Medical Center Groningen, Groningen, Department of Pediatrics, The Netherlands
| | - Haidong Zhu
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Yanbin Dong
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Jana V. van Vliet-Ostaptchouk
- University of Groningen, University Medical Center Groningen, Groningen, Department of Epidemiology, the Netherlands
- University of Groningen, University Medical Center Groningen, Department of Endocrinology, the Netherlands
- University of Groningen, University Medical Center Groningen, Genomics Coordination Center, Department of Genetics, Groningen, The Netherlands
| | - Lude Franke
- University of Groningen, University Medical Center Groningen, Department of Genetics, Groningen, The Netherlands
| | - Johan G Eriksson
- Department of General Practice and Primary health Care, Tukholmankatu 8 B, University of Helsinki, Finland and Helsinki University Hospital, Unit of General Practice, Helsinki, Finland
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore
| | - Myriam Fornage
- Brown Foundation Institute of Molecular Medicine, Mc Govern Medical School, University of Texas Health Science Center at Houston
- Human Genetics Center, School of Public Health, University of Texas Health Science Center at Houston
| | - Lili Milani
- Estonian Genome Center, Institute of Genomics, University of Tartu, 23 Riia Street, 51010, Tartu, Estonia
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Finnish Cardiovascular Research Center - Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere 33014, Finland; Department of Clinical Chemistry, Fimlab Laboratories, Tampere 33520, Finland
| | - Viola Vaccarino
- Department of Epidemiology, Emory Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Dorret I. Boomsma
- Department of Biological Psychology, Amsterdam Public Health research institute, Vrije Universiteit Amsterdam, Van der Boechorststraat 7-9, 1081BT, Amsterdam, The Netherlands
| | - Pim van der Harst
- University of Groningen, University Medical Center Groningen, Groningen, Department of Cardiology, the Netherlands
- Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Eco J. C. de Geus
- Department of Biological Psychology, Amsterdam Public Health research institute, Vrije Universiteit Amsterdam, Van der Boechorststraat 7-9, 1081BT, Amsterdam, The Netherlands
| | - Veikko Salomaa
- National Institute for Health and Welfare, P.O. Box 30, 00271 Helsinki, Finland
| | - Shengxu Li
- Children’s Minnesota Research Institute, Children’s Hospitals and Clinics of Minnesota, Minneapolis, MN, USA
| | - Wei Chen
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - Shaoyong Su
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - James Wilson
- Department of Physiology and Biophysics, University of Mississippi Medical Center, 2500 N. State St., Jackson, MS 39216 USA
| | - Harold Snieder
- University of Groningen, University Medical Center Groningen, Groningen, Department of Epidemiology, the Netherlands
| | - Jaakko Kaprio
- Institute for Molecular Medicine FIMM, HiLIFE, University of Helsinki, PO Box 20 (Tukholmankatu 8), Helsinki, Finland
- Department of Public Health, Faculty of Medicine, University of Helsinki, PO Box 20 (Tukholmankatu 8), Helsinki, Finland
| | - Xiaoling Wang
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA
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Ärnlöv J, Dluzen DF, Nowak C. Atherosclerotic Aortic Calcification-Associated Polymorphism in HDAC9 and Associations with Mortality, Cardiovascular Disease, and Kidney Disease. iScience 2020; 23:101253. [PMID: 32585591 PMCID: PMC7322070 DOI: 10.1016/j.isci.2020.101253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/20/2020] [Accepted: 06/04/2020] [Indexed: 12/22/2022] Open
Abstract
Histone deacetylase 9 (HDAC9) has recently been demonstrated as a key regulator of vascular smooth muscle cell (VSMC) phenotype and is associated with abdominal aortic calcification, myocardial infarction, and ischemic stroke. It is uncertain whether HDAC9 is also implicated in other VSMC-driven diseases. Our objective was to assess associations between abdominal aortic calcification-associated genetic variation in HDAC9 and VSMC-associated phenotypes. In this prospective population study of 335,146 adults enrolled in the UK Biobank, the abdominal aortic calcification-associated risk allele of a genetic variant in HDAC9 was associated with increased risk of systolic hypertension, non-ST segment elevation myocardial infarction, and ischemic stroke. There was a suggestive protective association with kidney disease outcomes that did not reach experiment-wise significance. These genetic results lend further support for HDAC9 as a potential therapeutic target for arterial stenotic and calcific disease.
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Affiliation(s)
- Johan Ärnlöv
- Department of Neurobiology, Care Sciences and Society (NVS), Family Medicine and Primary Care Unit, Karolinska Institutet, Alfred Nobels Allé 23, Huddinge 14183, Sweden; School of Health and Social Studies, Dalarna University, Falun 79188, Sweden
| | - Douglas F Dluzen
- Department of Biology, Morgan State University, Baltimore, MD 21251, USA
| | - Christoph Nowak
- Department of Neurobiology, Care Sciences and Society (NVS), Family Medicine and Primary Care Unit, Karolinska Institutet, Alfred Nobels Allé 23, Huddinge 14183, Sweden.
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104
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Bai X, Mangum K, Kakoki M, Smithies O, Mack CP, Taylor JM. GRAF3 serves as a blood volume-sensitive rheostat to control smooth muscle contractility and blood pressure. Small GTPases 2020; 11:194-203. [PMID: 29099324 PMCID: PMC7549679 DOI: 10.1080/21541248.2017.1375602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Vascular resistance is a major determinant of BP and is controlled, in large part, by RhoA-dependent smooth muscle cell (SMC) contraction within small peripheral arterioles and previous studies from our lab indicate that GRAF3 is a critical regulator of RhoA in vascular SMC. The elevated contractile responses we observed in GRAF3 deficient vessels coupled with the hypertensive phenotype provided a mechanistic link for the hypertensive locus recently identified within the GRAF3 gene. On the basis of our previous findings that the RhoA signaling axis also controls SMC contractile gene expression and that GRAF3 expression was itself controlled by this pathway, we postulated that GRAF3 serves as an important counter-regulator of SMC phenotype. Indeed, our new findings presented herein indicate that GRAF3 expression acts as a pressure-sensitive rheostat to control vessel tone by both reducing calcium sensitivity and restraining expression of the SMC-specific contractile proteins that support this function. Collectively, these studies highlight the potential therapeutic value of GRAF3 in the control of human hypertension.
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Affiliation(s)
- Xue Bai
- Department of Pathology, University of North Carolina, Chapel Hill, NC, USA
| | - Kevin Mangum
- Department of Pathology, University of North Carolina, Chapel Hill, NC, USA
| | - Masao Kakoki
- Department of Pathology, University of North Carolina, Chapel Hill, NC, USA
| | - Oliver Smithies
- Department of Pathology, University of North Carolina, Chapel Hill, NC, USA
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC, USA
| | - Christopher P. Mack
- Department of Pathology, University of North Carolina, Chapel Hill, NC, USA
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC, USA
| | - Joan M. Taylor
- Department of Pathology, University of North Carolina, Chapel Hill, NC, USA
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC, USA
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105
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Epigenetics, HIV, and Cardiovascular Disease Risk. Curr Probl Cardiol 2020; 46:100615. [PMID: 32507271 DOI: 10.1016/j.cpcardiol.2020.100615] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 04/21/2020] [Indexed: 12/14/2022]
Abstract
Human immunodeficiency virus (HIV) is currently considered a risk factor for cardiovascular disease (CVD). With the advent of antiretroviral treatment and prevention, HIV-related morbidity and mortality rates have decreased significantly. Prolonged life expectancy heralded higher prevalence of diseases of aging, including CVD-associated morbidity and mortality, having an earlier onset in people living with HIV (PLHIV) compared to their noninfected counterparts. Several epigenetic biomarkers are now available as predictors of health and disease, with DNA methylation being one of the most widely studied. Epigenetic biomarkers are changes in gene expression without alterations to the intrinsic DNA sequence, with the potential to predict risk of future CVD, as well as the outcome and response to therapy among PLHIV. We sought to review the available literature referencing epigenetic markers to determine underlying biomechanism predisposing high-risk PLHIV to CVD, elucidating areas of possible intervention.
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106
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Guo Y, Pei Y, Li K, Cui W, Zhang D. DNA N 6-methyladenine modification in hypertension. Aging (Albany NY) 2020; 12:6276-6291. [PMID: 32283543 PMCID: PMC7185115 DOI: 10.18632/aging.103023] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/02/2020] [Indexed: 02/06/2023]
Abstract
DNA methylation has a role in the pathogenesis of essential hypertension. DNA N6-methyladenine (6mA) modification as a novel adenine methylation exists in human tissues, but whether it plays a role in hypertension development remains unclear. Here, we reported that the global 6mA DNA level in leukocytes was significantly reduced in patients with hypertension and was reversed with successful treatment. Age, systolic blood pressure, and serum total cholesterol and high-density lipoprotein levels were associated with decreased leukocyte 6mA DNA level. Elevated ALKBH1 (AlkB homolog 1), a demethylase of 6mA, level mediated this dynamic change in 6mA level in leukocytes and vascular smooth muscle cells in hypertension mouse and rat models. Knockdown of ALKBH1 suppressed angiotensin II-induced vascular smooth muscle phenotype transformation, proliferation and migration. ALKBH1-6mA directly and negatively regulated hypoxia inducible factor 1 α (HIF1α), which responded to angiotensin II-induced vascular remodeling. Collectively, our results demonstrate a potential epigenetic role for ALKBH1-6mA regulation in hypertension development, diagnosis and treatment.
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Affiliation(s)
- Ye Guo
- Department of Laboratory Medicine, Peking Union Medical College Hospital and Peking Union Medical College, Beijing 100021, PR China
| | - Yuqing Pei
- State Key Laboratory of Molecular Oncology, Department of Clinical Laboratory, National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, PR China
| | - Kexin Li
- State Key Laboratory of Molecular Oncology, Department of Clinical Laboratory, National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, PR China
| | - Wei Cui
- State Key Laboratory of Molecular Oncology, Department of Clinical Laboratory, National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, PR China
| | - Donghong Zhang
- Center for Molecular and Translational Medicine, Georgia State University, Research Science Center, Atlanta, GA 30303, USA
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107
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Hutchinson A, Watson H, Wallace C. Improving the coverage of credible sets in Bayesian genetic fine-mapping. PLoS Comput Biol 2020; 16:e1007829. [PMID: 32282791 PMCID: PMC7179948 DOI: 10.1371/journal.pcbi.1007829] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/23/2020] [Accepted: 03/27/2020] [Indexed: 12/19/2022] Open
Abstract
Genome Wide Association Studies (GWAS) have successfully identified thousands of loci associated with human diseases. Bayesian genetic fine-mapping studies aim to identify the specific causal variants within GWAS loci responsible for each association, reporting credible sets of plausible causal variants, which are interpreted as containing the causal variant with some "coverage probability". Here, we use simulations to demonstrate that the coverage probabilities are over-conservative in most fine-mapping situations. We show that this is because fine-mapping data sets are not randomly selected from amongst all causal variants, but from amongst causal variants with larger effect sizes. We present a method to re-estimate the coverage of credible sets using rapid simulations based on the observed, or estimated, SNP correlation structure, we call this the "adjusted coverage estimate". This is extended to find "adjusted credible sets", which are the smallest set of variants such that their adjusted coverage estimate meets the target coverage. We use our method to improve the resolution of a fine-mapping study of type 1 diabetes. We found that in 27 out of 39 associated genomic regions our method could reduce the number of potentially causal variants to consider for follow-up, and found that none of the 95% or 99% credible sets required the inclusion of more variants-a pattern matched in simulations of well powered GWAS. Crucially, our method requires only GWAS summary statistics and remains accurate when SNP correlations are estimated from a large reference panel. Using our method to improve the resolution of fine-mapping studies will enable more efficient expenditure of resources in the follow-up process of annotating the variants in the credible set to determine the implicated genes and pathways in human diseases.
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Affiliation(s)
- Anna Hutchinson
- MRC Biostatistics Unit, Cambridge Institute of Public Health, Cambridge, United Kingdom
| | - Hope Watson
- MRC Biostatistics Unit, Cambridge Institute of Public Health, Cambridge, United Kingdom
| | - Chris Wallace
- MRC Biostatistics Unit, Cambridge Institute of Public Health, Cambridge, United Kingdom
- Cambridge Institute for Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
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108
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Epigenome-wide association study for perceived discrimination among sub-Saharan African migrants in Europe - the RODAM study. Sci Rep 2020; 10:4919. [PMID: 32188935 PMCID: PMC7080832 DOI: 10.1038/s41598-020-61649-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 02/27/2020] [Indexed: 11/21/2022] Open
Abstract
Sub-Saharan African (SSA) migrants in Europe experience psychosocial stressors, such as perceived discrimination (PD). The effect of such a stressor on health could potentially be mediated via epigenetics. In this study we performed an epigenome-wide association study (EWAS) to assess the association between levels of PD with genome-wide DNA methylation profiles in SSA migrants. The Illumina 450 K DNA-methylation array was used on whole blood samples of 340 Ghanaian adults residing in three European cities from the cross-sectional Research on Obesity and Diabetes among African Migrants (RODAM) study. PD was assessed using sum scores of the Everyday Discrimination Scale (EDS). Differentially methylated positions and regions (DMPs and DMRs) were identified through linear regression analysis. Two hypo-methylated DMPs, namely cg13986138 (CYFIP1) and cg10316525(ANKRD63), were found to be associated with PD. DMR analysis identified 47 regions associated with the PD. To the best of our knowledge, this survey is the first EWAS for PD in first generation SSA migrants. We identified two DMPs associated with PD. Whether these associations underlie a consequence or causal effect within the scope of biological functionality needs additional research.
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109
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Salameh Y, Bejaoui Y, El Hajj N. DNA Methylation Biomarkers in Aging and Age-Related Diseases. Front Genet 2020; 11:171. [PMID: 32211026 PMCID: PMC7076122 DOI: 10.3389/fgene.2020.00171] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 02/13/2020] [Indexed: 12/11/2022] Open
Abstract
Recent research efforts provided compelling evidence of genome-wide DNA methylation alterations in aging and age-related disease. It is currently well established that DNA methylation biomarkers can determine biological age of any tissue across the entire human lifespan, even during development. There is growing evidence suggesting epigenetic age acceleration to be strongly linked to common diseases or occurring in response to various environmental factors. DNA methylation based clocks are proposed as biomarkers of early disease risk as well as predictors of life expectancy and mortality. In this review, we will summarize key advances in epigenetic clocks and their potential application in precision health. We will also provide an overview of progresses in epigenetic biomarker discovery in Alzheimer's, type 2 diabetes, and cardiovascular disease. Furthermore, we will highlight the importance of prospective study designs to identify and confirm epigenetic biomarkers of disease.
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Affiliation(s)
| | | | - Nady El Hajj
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar
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110
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Duan W, Hicks J, Makara MA, Ilkayeva O, Abraham DM. TASK-1 and TASK-3 channels modulate pressure overload-induced cardiac remodeling and dysfunction. Am J Physiol Heart Circ Physiol 2020; 318:H566-H580. [PMID: 31977249 DOI: 10.1152/ajpheart.00739.2018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Tandem pore domain acid-sensitive K+ (TASK) channels are present in cardiac tissue; however, their contribution to cardiac pathophysiology is not well understood. Here, we investigate the role of TASK-1 and TASK-3 in the pathogenesis of cardiac dysfunction using both human tissue and mouse models of genetic TASK channel loss of function. Compared with normal human cardiac tissue, TASK-1 gene expression is reduced in association with either cardiac hypertrophy alone or combined cardiac hypertrophy and heart failure. In a pressure overload cardiomyopathy model, TASK-1 global knockout (TASK-1 KO) mice have both reduced cardiac hypertrophy and preserved cardiac function compared with wild-type mice. In contrast to the TASK-1 KO mouse pressure overload response, TASK-3 global knockout (TASK-3 KO) mice develop cardiac hypertrophy and a delayed onset of cardiac dysfunction compared with wild-type mice. The cardioprotective effects observed in TASK-1 KO mice are associated with pressure overload-induced augmentation of AKT phosphorylation and peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) expression, with consequent augmentation of cardiac energetics and fatty acid oxidation. The protective effects of TASK-1 loss of function are associated with an enhancement of physiologic hypertrophic signaling and preserved metabolic functions. These findings may provide a rationale for TASK-1 channel inhibition in the treatment of cardiac dysfunction.NEW & NOTEWORTHY The role of tandem pore domain acid-sensitive K+ (TASK) channels in cardiac function is not well understood. This study demonstrates that TASK channel gene expression is associated with the onset of human cardiac hypertrophy and heart failure. TASK-1 and TASK-3 strongly affect the development of pressure overload cardiomyopathies in genetic models of TASK-1 and TASK-3 loss of function. The effects of TASK-1 loss of function were associated with enhanced AKT phosphorylation and expression of peroxisome proliferator-activated receptor-γ coactivator-1 (PGC-1) transcription factor. These data suggest that TASK channels influence the development of cardiac hypertrophy and dysfunction in response to injury.
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Affiliation(s)
- Wei Duan
- Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | - Jonné Hicks
- Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | | | - Olga Ilkayeva
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina
| | - Dennis M Abraham
- Department of Medicine, Duke University Medical Center, Durham, North Carolina
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111
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Colombo F, Pintarelli G, Galvan A, Noci S, Corli O, Skorpen F, Klepstad P, Kaasa S, Pigni A, Brunelli C, Roberto A, Piazza R, Pirola A, Gambacorti-Passerini C, Caraceni AT. Identification of genetic polymorphisms modulating nausea and vomiting in two series of opioid-treated cancer patients. Sci Rep 2020; 10:542. [PMID: 31953506 PMCID: PMC6969029 DOI: 10.1038/s41598-019-57358-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 11/18/2019] [Indexed: 01/27/2023] Open
Abstract
Nausea and vomiting are often associated with opioid analgesia in cancer patients; however, only a subset of patients develop such side effects. Here, we tested the hypothesis that the occurrence of nausea and vomiting is modulated by the genetic background of the patients. Whole exome sequencing of DNA pools from patients with either low (n = 937) or high (n = 557) nausea and vomiting intensity, recruited in the European Pharmacogenetic Opioid Study, revealed a preliminary association of 53 polymorphisms. PCR-based genotyping of 45 of these polymorphisms in the individual patients of the same series confirmed the association for six SNPs in AIM1L, CLCC1, MUC16, PDE3A, POM121L2, and ZNF165 genes. Genotyping of the same 45 polymorphisms in 264 patients of the Italian CERP study, also treated with opioids for cancer pain, instead confirmed the association for two SNPs in ZNF568 and PDE3A genes. Only one SNP, rs12305038 in PDE3A, was confirmed in both series, although with opposite effects of the minor allele on the investigated phenotype. Overall, our findings suggest that genetic factors are indeed associated with nausea and vomiting in opioid-treated cancer patients, but the role of individual polymorphisms may be weak.
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Affiliation(s)
| | | | | | - Sara Noci
- Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Oscar Corli
- Pain and Palliative Care Research Unit, IRCCS Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Frank Skorpen
- European Palliative Care Research Center, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Pål Klepstad
- European Palliative Care Research Center, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Anesthesiology and Intensive Care Medicine, St. Olavs University Hospital, Trondheim, Norway
| | - Stein Kaasa
- European Palliative Care Research Center, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Oncology, St. Olavs University Hospital, Trondheim, Norway
| | | | | | - Anna Roberto
- Pain and Palliative Care Research Unit, IRCCS Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Rocco Piazza
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Alessandra Pirola
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
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Thériault S, Sjaarda J, Chong M, Hess S, Gerstein H, Paré G. Identification of Circulating Proteins Associated With Blood Pressure Using Mendelian Randomization. CIRCULATION-GENOMIC AND PRECISION MEDICINE 2020; 13:e002605. [PMID: 31928076 DOI: 10.1161/circgen.119.002605] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Hypertension is a common modifiable risk factor for cardiovascular disease and mortality. Pathophysiological mechanisms leading to hypertension remain incompletely understood. Mendelian randomization (MR) allows the evaluation of the causal role of markers by minimizing the risk of biases such as reverse causation and confounding. We aimed to identify novel circulating proteins associated with blood pressure through a comprehensive screen of 227 blood biomarkers using MR. METHODS Genetic determinants of 227 biomarkers were identified in ORIGIN (Outcome Reduction With Initial Glargine Intervention; URL: http://www.clinicaltrials.gov. Unique identifier: NCT00069784) participants (N=4147) and combined with genetic effects on systolic blood pressure, diastolic blood pressure, mean arterial pressure, and pulse pressure from the International Consortium for Blood Pressure (74 064 individuals) using MR. Results were replicated in the UK Biobank (up to 319 103 individuals) and using another biomarker dataset (N=3301). MR analyses with cardiovascular risk factors and outcomes as well as other biomarkers were performed to further evaluate the mechanisms involved. RESULTS Six biomarkers were associated with blood pressure using MR after adjustment for multiple hypothesis testing. Relationships between NT-proBNP (N-terminal Pro-B-type natriuretic peptide), systolic blood pressure, and diastolic blood pressure confirmed previous reports. Novel circulating proteins associated with blood pressure were also identified. uPA (urokinase-type plasminogen activator) was related to systolic blood pressure; ADM (adrenomedullin) was related to systolic blood pressure and pulse pressure; IL (interleukin) 16 was related to diastolic blood pressure; cFn (cellular fibronectin) and IGFBP3 (insulin-like growth factor-binding protein 3) were related to pulse pressure. With the exception of IL16 and diastolic blood pressure (P=0.58), these relationships were validated in the UK Biobank (P<0.0001). Further MR analyses with cardiovascular risk factors and outcomes showed relationships between NT-proBNP and large-artery atherosclerotic stroke, IGFBP3 and diabetes mellitus as well as cFn and body mass index. CONCLUSIONS We identified novel biomarkers associated with blood pressure using MR. These markers could prove useful for risk assessment and as potential therapeutic targets.
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Affiliation(s)
- Sébastien Thériault
- Population Health Research Institute, David Braley Cardiac, Vascular and Stroke Research Institute (S.T., J.S., M.C., H.G., G.P.), McMaster University, Hamilton, ON, Canada.,Department of Molecular Biology, Medical Biochemistry and Pathology, Laval University, Quebec City, Canada (S.T.)
| | - Jennifer Sjaarda
- Population Health Research Institute, David Braley Cardiac, Vascular and Stroke Research Institute (S.T., J.S., M.C., H.G., G.P.), McMaster University, Hamilton, ON, Canada.,Department of Pathology and Molecular Medicine (J.S., M.C., G.P), McMaster University, Hamilton, ON, Canada
| | - Michael Chong
- Population Health Research Institute, David Braley Cardiac, Vascular and Stroke Research Institute (S.T., J.S., M.C., H.G., G.P.), McMaster University, Hamilton, ON, Canada.,Department of Pathology and Molecular Medicine (J.S., M.C., G.P), McMaster University, Hamilton, ON, Canada
| | - Sibylle Hess
- R&D, Translational Medicine and Early Development, Biomarkers and Clinical Bioanalyses, Sanofi Aventis Deutschland GmbH Frankfurt, Germany (S.H.)
| | - Hertzel Gerstein
- Population Health Research Institute, David Braley Cardiac, Vascular and Stroke Research Institute (S.T., J.S., M.C., H.G., G.P.), McMaster University, Hamilton, ON, Canada
| | - Guillaume Paré
- Population Health Research Institute, David Braley Cardiac, Vascular and Stroke Research Institute (S.T., J.S., M.C., H.G., G.P.), McMaster University, Hamilton, ON, Canada.,Department of Pathology and Molecular Medicine (J.S., M.C., G.P), McMaster University, Hamilton, ON, Canada
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113
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Dasinger JH, Alsheikh AJ, Abais-Battad JM, Pan X, Fehrenbach DJ, Lund H, Roberts ML, Cowley AW, Kidambi S, Kotchen TA, Liu P, Liang M, Mattson DL. Epigenetic Modifications in T Cells: The Role of DNA Methylation in Salt-Sensitive Hypertension. Hypertension 2019; 75:372-382. [PMID: 31838911 DOI: 10.1161/hypertensionaha.119.13716] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The SS (Dahl salt sensitive) rat is an established model of hypertension and renal damage that is accompanied with immune system activation in response to a high-salt diet. Investigations into the effects of sodium-independent and dependent components of the diet were shown to affect the disease phenotype with SS/MCW (JrHsdMcwi) rats maintained on a purified diet (AIN-76A) presenting with a more severe phenotype relative to grain-fed SS/CRL (JrHsdMcwiCrl) rats. Since contributions of the immune system, environment, and diet are documented to alter this phenotype, this present study examined the epigenetic profile of T cells isolated from the periphery and the kidney from these colonies. T cells isolated from kidneys of the 2 colonies revealed that transcriptomic and functional differences may contribute to the susceptibility of hypertension and renal damage. In response to high-salt challenge, the methylome of T cells isolated from the kidney of SS/MCW exhibit a significant increase in differentially methylated regions with a preference for hypermethylation compared with the SS/CRL kidney T cells. Circulating T cells exhibited similar methylation profiles between colonies. Utilizing transcriptomic data from T cells isolated from the same animals upon which the DNA methylation analysis was performed, a predominant negative correlation was observed between gene expression and DNA methylation in all groups. Lastly, inhibition of DNA methyltransferases blunted salt-induced hypertension and renal damage in the SS/MCW rats providing a functional role for methylation. This study demonstrated the influence of epigenetic modifications to immune cell function, highlighting the need for further investigations.
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Affiliation(s)
- John Henry Dasinger
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Ammar J Alsheikh
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Justine M Abais-Battad
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Xiaoqing Pan
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Daniel J Fehrenbach
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Hayley Lund
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Michelle L Roberts
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Allen W Cowley
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Srividya Kidambi
- Medicine (S.K., T.A.K.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Theodore A Kotchen
- Medicine (S.K., T.A.K.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Pengyuan Liu
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - Mingyu Liang
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
| | - David L Mattson
- From the Departments of Physiology (J.H.D., A.J.A., J.M.A.-B., X.P., D.J.F., H.L., M.L.R., A.W.C., P.L., M.L., D.L.M.), Medical College of Wisconsin Milwaukee, Wisconsin, USA
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Malhotra R, Mauer AC, Lino Cardenas CL, Guo X, Yao J, Zhang X, Wunderer F, Smith AV, Wong Q, Pechlivanis S, Hwang SJ, Wang J, Lu L, Nicholson CJ, Shelton G, Buswell MD, Barnes HJ, Sigurslid HH, Slocum C, Rourke CO, Rhee DK, Bagchi A, Nigwekar SU, Buys ES, Campbell CY, Harris T, Budoff M, Criqui MH, Rotter JI, Johnson AD, Song C, Franceschini N, Debette S, Hoffmann U, Kälsch H, Nöthen MM, Sigurdsson S, Freedman BI, Bowden DW, Jöckel KH, Moebus S, Erbel R, Feitosa MF, Gudnason V, Thanassoulis G, Zapol WM, Lindsay ME, Bloch DB, Post WS, O'Donnell CJ. HDAC9 is implicated in atherosclerotic aortic calcification and affects vascular smooth muscle cell phenotype. Nat Genet 2019; 51:1580-1587. [PMID: 31659325 PMCID: PMC6858575 DOI: 10.1038/s41588-019-0514-8] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 09/16/2019] [Indexed: 01/16/2023]
Abstract
Aortic calcification is an important independent predictor of future cardiovascular events. We performed a genome-wide association meta-analysis to determine SNPs associated with the extent of abdominal aortic calcification (n = 9,417) or descending thoracic aortic calcification (n = 8,422). Two genetic loci, HDAC9 and RAP1GAP, were associated with abdominal aortic calcification at a genome-wide level (P < 5.0 × 10-8). No SNPs were associated with thoracic aortic calcification at the genome-wide threshold. Increased expression of HDAC9 in human aortic smooth muscle cells promoted calcification and reduced contractility, while inhibition of HDAC9 in human aortic smooth muscle cells inhibited calcification and enhanced cell contractility. In matrix Gla protein-deficient mice, a model of human vascular calcification, mice lacking HDAC9 had a 40% reduction in aortic calcification and improved survival. This translational genomic study identifies the first genetic risk locus associated with calcification of the abdominal aorta and describes a previously unknown role for HDAC9 in the development of vascular calcification.
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Affiliation(s)
- Rajeev Malhotra
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
| | - Andreas C Mauer
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Christian L Lino Cardenas
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Xiuqing Guo
- Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute and Department of Pediatrics, Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Jie Yao
- Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute and Department of Pediatrics, Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Xiaoling Zhang
- National Heart, Lung, and Blood Institute Framingham Heart Study, Framingham, MA, USA
- Department of Medicine (Biomedical Genetics Section), Boston University School of Medicine, Boston, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Florian Wunderer
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Albert V Smith
- Icelandic Heart Association, Kópavogur, Iceland
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Quenna Wong
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Sonali Pechlivanis
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany
| | - Shih-Jen Hwang
- National Heart, Lung, and Blood Institute Framingham Heart Study, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Division of Intramural Research, Bethesda, MD, USA
| | - Judy Wang
- Division of Statistical Genomics, Washington University School of Medicine, St. Louis, MO, USA
| | - Lingyi Lu
- Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Christopher J Nicholson
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Georgia Shelton
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Mary D Buswell
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Hanna J Barnes
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Haakon H Sigurslid
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Charles Slocum
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Caitlin O' Rourke
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - David K Rhee
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Aranya Bagchi
- Harvard Medical School, Boston, MA, USA
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Sagar U Nigwekar
- Harvard Medical School, Boston, MA, USA
- Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Emmanuel S Buys
- Harvard Medical School, Boston, MA, USA
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
| | | | | | - Matthew Budoff
- Division of Cardiology, Department of Medicine and Los Angeles Biomedical Research Institute, Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Michael H Criqui
- Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA, USA
| | - Jerome I Rotter
- Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute and Department of Pediatrics, Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Andrew D Johnson
- National Heart, Lung, and Blood Institute Framingham Heart Study, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Division of Intramural Research, Bethesda, MD, USA
| | - Ci Song
- National Heart, Lung, and Blood Institute Framingham Heart Study, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Division of Intramural Research, Bethesda, MD, USA
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Nora Franceschini
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - Stephanie Debette
- Inserm U1219, University of Bordeaux, Bordeaux, France
- Department of Neurology, University Hospital of Bordeaux, Bordeaux, France
| | - Udo Hoffmann
- Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Hagen Kälsch
- Department of Cardiology, Alfried Krupp Hospital, Essen, Germany
- Witten/Herdecke University, Witten, Germany
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany
- Department of Genomics, Life & Brain GmbH, University of Bonn, Bonn, Germany
| | | | | | | | - Karl-Heinz Jöckel
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany
| | - Susanne Moebus
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany
- Centre for Urban Epidemiology, University Hospital Essen, Essen, Germany
| | - Raimund Erbel
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany
| | - Mary F Feitosa
- Division of Statistical Genomics, Washington University School of Medicine, St. Louis, MO, USA
| | - Vilmundur Gudnason
- Icelandic Heart Association, Kópavogur, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - George Thanassoulis
- National Heart, Lung, and Blood Institute Framingham Heart Study, Framingham, MA, USA
- Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Warren M Zapol
- Harvard Medical School, Boston, MA, USA
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Mark E Lindsay
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Donald B Bloch
- Harvard Medical School, Boston, MA, USA
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
- Division of Rheumatology, Allergy, and Immunology; Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Wendy S Post
- Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Christopher J O'Donnell
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
- National Heart, Lung, and Blood Institute Framingham Heart Study, Framingham, MA, USA.
- U.S. Department of Veterans Affairs, Boston, MA, USA.
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Soler-Botija C, Gálvez-Montón C, Bayés-Genís A. Epigenetic Biomarkers in Cardiovascular Diseases. Front Genet 2019; 10:950. [PMID: 31649728 PMCID: PMC6795132 DOI: 10.3389/fgene.2019.00950] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 09/05/2019] [Indexed: 12/16/2022] Open
Abstract
Cardiovascular diseases are the number one cause of death worldwide and greatly impact quality of life and medical costs. Enormous effort has been made in research to obtain new tools for efficient and quick diagnosis and predicting the prognosis of these diseases. Discoveries of epigenetic mechanisms have related several pathologies, including cardiovascular diseases, to epigenetic dysregulation. This has implications on disease progression and is the basis for new preventive strategies. Advances in methodology and big data analysis have identified novel mechanisms and targets involved in numerous diseases, allowing more individualized epigenetic maps for personalized diagnosis and treatment. This paves the way for what is called pharmacoepigenetics, which predicts the drug response and develops a tailored therapy based on differences in the epigenetic basis of each patient. Similarly, epigenetic biomarkers have emerged as a promising instrument for the consistent diagnosis and prognosis of cardiovascular diseases. Their good accessibility and feasible methods of detection make them suitable for use in clinical practice. However, multicenter studies with a large sample population are required to determine with certainty which epigenetic biomarkers are reliable for clinical routine. Therefore, this review focuses on current discoveries regarding epigenetic biomarkers and its controversy aiming to improve the diagnosis, prognosis, and therapy in cardiovascular patients.
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Affiliation(s)
- Carolina Soler-Botija
- Heart Failure and Cardiac Regeneration (ICREC) Research Program, Health Science Research Institute Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBERCV, Instituto de Salud Carlos III, Madrid, Spain
| | - Carolina Gálvez-Montón
- Heart Failure and Cardiac Regeneration (ICREC) Research Program, Health Science Research Institute Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBERCV, Instituto de Salud Carlos III, Madrid, Spain
| | - Antoni Bayés-Genís
- Heart Failure and Cardiac Regeneration (ICREC) Research Program, Health Science Research Institute Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBERCV, Instituto de Salud Carlos III, Madrid, Spain
- Cardiology Service, HUGTiP, Badalona, Spain
- Department of Medicine, Barcelona Autonomous University (UAB), Badalona, Spain
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116
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Lule SA, Mentzer AJ, Namara B, Muwenzi AG, Nassanga B, kizito D, Akurut H, Lubyayi L, Tumusiime J, Zziwa C, Akello F, Gurdasani D, Sandhu M, Smeeth L, Elliott AM, Webb EL. A genome-wide association and replication study of blood pressure in Ugandan early adolescents. Mol Genet Genomic Med 2019; 7:e00950. [PMID: 31469255 PMCID: PMC6785527 DOI: 10.1002/mgg3.950] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/30/2019] [Accepted: 06/14/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Genetic association studies of blood pressure (BP) have mostly been conducted in non-African populations. Using the Entebbe Mother and Baby Study (EMaBS), we aimed to identify genetic variants associated with BP among Ugandan adolescents. METHODS Systolic and diastolic BP were measured among 10- and 11-year olds. Whole-genome genotype data were generated using Illumina omni 2.5M arrays and untyped variants were imputed. Genome-wide association study (GWAS) was conducted using linear mixed model regression to account for population structure. Linear regression analysis was used to assess whether variants previously associated with BP (p < 5.0 × 10-8 ) in published BP GWASs were replicated in our study. RESULTS Of the 14 million variants analyzed among 815 adolescents, none reached genome-wide significance (p < 5.0×10-8 ) for association with systolic or diastolic BP. The most strongly associated variants were rs181430167 (p = 6.8 × 10-7 ) for systolic BP and rs12991132 (p = 4.0 × 10-7 ) for diastolic BP. Thirty-three (17 single nucleotide polymorphisms (SNPs) for systolic BP, 15 SNPs for diastolic BP and one SNP for both) of 330 variants previously identified as associated with BP were replicated in this study, but none remained significant after accounting for multiple testing. CONCLUSION Variants showing suggestive associations are worthy of future investigation. Replication results suggest that variants influencing adolescent BP may overlap somewhat with those already established in previous studies, largely based on adults in Western settings.
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Affiliation(s)
- Swaib A. Lule
- London School of Hygiene and Tropical MedicineLondonUK
- MRC/UVRI & LSHTM Uganda Research UnitEntebbeUganda
| | - Alexander J. Mentzer
- Wellcome Trust Centre for Human GeneticsUniversity of OxfordOxfordUK
- Big Data Institute, Li Ka Shing Centre for Health Information and DiscoveryUniversity of OxfordOxfordUK
| | | | | | | | | | - Helen Akurut
- MRC/UVRI & LSHTM Uganda Research UnitEntebbeUganda
| | | | | | | | | | - Deept Gurdasani
- Wellcome Trust Sanger InstituteCambridgeUK
- University of CambridgeCambridgeUK
| | - Manjinder Sandhu
- Wellcome Trust Sanger InstituteCambridgeUK
- University of CambridgeCambridgeUK
| | - Liam Smeeth
- London School of Hygiene and Tropical MedicineLondonUK
| | - Alison M. Elliott
- London School of Hygiene and Tropical MedicineLondonUK
- MRC/UVRI & LSHTM Uganda Research UnitEntebbeUganda
| | - Emily L. Webb
- London School of Hygiene and Tropical MedicineLondonUK
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Brown KM, Hui Q, Huang Y, Taylor JY, Prescott L, de Mendoza VB, Crusto C, Sun YV. Association Between Stress and Coping with DNA Methylation of Blood Pressure-Related Genes Among African American Women. CHRONIC STRESS 2019; 3. [PMID: 32395678 PMCID: PMC7213592 DOI: 10.1177/2470547019879088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Exposure to psychosocial stress and employment of high effort coping
strategies have been identified as risk factors that may partially explain
the high prevalence of hypertension among African Americans. One biological
mechanism through which stress and coping may affect risk of hypertension is
via epigenetic modifications (e.g., DNA methylation) in blood
pressure-related genes; however, this area remains understudied in African
Americans. Methods We used data from the ongoing Intergenerational Blood Pressure Study, a
longitudinal study designed to investigate factors that contribute to
hypertension risk in African American women (n = 120) and their young
children, to investigate the association between stress overload,
problem-solving coping, avoidance coping, and social support coping with DNA
methylation in 25 candidate genes related to blood pressure. Multivariable
linear regression and multilevel modeling were used to conduct methylation
site-level and gene-level analyses, respectively. Results In site-level analyses, stress overload, problem-solving coping, social
support coping, and avoidance coping were associated with 47, 63, 66, and 61
sites, respectively, at p < 0.05. However, no associations were
statistically significant after multiple testing correction. There were also
no significant associations in gene-level analyses. Conclusions As human social epigenomics is an emerging, evolving area of research, there
is much to be learned from studies with statistically significant findings
as well as studies with null findings. Factors such as characteristics of
the social stressor, source of DNA, and synchronization of exposure and
outcome are likely important considerations as we move the field
forward.
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Affiliation(s)
| | - Qin Hui
- Emory University (Atlanta, Georgia)
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118
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Evaluation of the pathophysiological mechanisms of salt-sensitive hypertension. Hypertens Res 2019; 42:1848-1857. [PMID: 31541221 DOI: 10.1038/s41440-019-0332-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 08/24/2019] [Accepted: 08/27/2019] [Indexed: 12/23/2022]
Abstract
The currently available data have indicated that dietary salt is directly correlated with blood pressure (BP) and the occurrence of hypertension. However, the salt sensitivity of BP is different in each individual. Genetic factors and environmental factors influence the salt sensitivity of BP. Obesity, stress, and aging are strongly associated with increased BP salt sensitivity. Indeed, a complex and interactive genetic and environmental system can determine an individual's BP salt sensitivity. However, the genetic/epigenetic determinants leading to salt sensitivity of BP are still challenging to identify primarily because lifestyle-related diseases, including hypertension, usually become a medical problem during adulthood, although their causes may be attributed to the earlier stages of ontogeny. The association between distinct developmental periods involves changes in gene expression, which include epigenetic phenomena. The role of epigenetic modification in the development of salt-sensitive hypertension is presently under investigation. Recently, we identified aberrant DNA methylation in the context of prenatally programmed hypertension. In this review, we summarize the existing knowledge regarding the pathophysiological mechanisms of salt-sensitive hypertension. Additionally, we discuss the contribution of epigenetic mechanisms in the development of salt-sensitive hypertension.
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Sun D, Zhang T, Su S, Hao G, Chen T, Li QZ, Bazzano L, He J, Wang X, Li S, Chen W. Body Mass Index Drives Changes in DNA Methylation: A Longitudinal Study. Circ Res 2019; 125:824-833. [PMID: 31510868 DOI: 10.1161/circresaha.119.315397] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
RATIONALE Previous EWASs (Epigenome-Wide Association Studies) suggest that obesity may be the cause, not a consequence, of changes in DNA methylation (DNAm). However, longitudinal observations are lacking. OBJECTIVE To identify 5'-cytosine-phosphate-guanine-3' in DNA (CpG) sites associated with body mass index (BMI) and examine the temporal relationship between dynamic changes in DNAm and BMI in a longitudinal cohort. METHODS AND RESULTS Race-specific EWASs were performed in 995 whites and 490 blacks from the Bogalusa Heart Study. Suggestive CpG sites were further replicated in 252 whites and 228 blacks from the Georgia Stress and Heart Study. Cross-lagged panel analysis was used to examine the temporal relationship between DNAm and BMI in 439 whites and 201 blacks who were examined twice 6.2 years apart. In discovery and replication samples, 349 CpG sites (266 novel) in whites and 36 (21 novel) in blacks were identified to be robustly associated with BMI, with 8 (1 novel) CpG sites overlapping between the 2 races. Cross-lagged panel analyses showed significant unidirectional paths (PFDR <0.05) from baseline BMI to follow-up DNAm at 18 CpG sites in whites and 7 in blacks; no CpG sites showed significant paths from DNAm at baseline to BMI at follow-up. Baseline BMI was associated with a DNAm score (calculated from DNAm levels at the associated CpG sites) at follow-up (P<0.001 both in blacks and in whites). CONCLUSIONS The findings provide strong evidence that obesity is the cause, not a consequence, of changes in DNAm over time.
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Affiliation(s)
- Dianjianyi Sun
- From the Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China (D.S.).,Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA (D.S., T.Z., L.B., J.H., W.C.)
| | - Tao Zhang
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA (D.S., T.Z., L.B., J.H., W.C.).,Department of Biostatistics, School of Public Health, Shandong University, Jinan, China (T.Z.)
| | - Shaoyong Su
- Georgia Prevention Institute, Department of Population Health Sciences, Medical College of Georgia, Augusta University (S.S., G.H., X.W)
| | - Guang Hao
- Georgia Prevention Institute, Department of Population Health Sciences, Medical College of Georgia, Augusta University (S.S., G.H., X.W)
| | - Tao Chen
- Microarray Core Facility, University of Texas Southwestern Medical Center, Dallas, TX (T.C., Z.L.)
| | - Quan-Zhen Li
- Microarray Core Facility, University of Texas Southwestern Medical Center, Dallas, TX (T.C., Z.L.)
| | - Lydia Bazzano
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA (D.S., T.Z., L.B., J.H., W.C.)
| | - Jiang He
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA (D.S., T.Z., L.B., J.H., W.C.)
| | - Xiaoling Wang
- Georgia Prevention Institute, Department of Population Health Sciences, Medical College of Georgia, Augusta University (S.S., G.H., X.W)
| | - Shengxu Li
- Children's Minnesota Research Institute, Children's Hospitals and Clinics of Minnesota, Minneapolis (S.L.)
| | - Wei Chen
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA (D.S., T.Z., L.B., J.H., W.C.)
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Hendriks T, Said MA, Janssen LMA, van der Ende MY, van Veldhuisen DJ, Verweij N, van der Harst P. Effect of Systolic Blood Pressure on Left Ventricular Structure and Function: A Mendelian Randomization Study. Hypertension 2019; 74:826-832. [PMID: 31476911 DOI: 10.1161/hypertensionaha.119.12679] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We aimed to estimate the effects of a lifelong exposure to high systolic blood pressure (SBP) on left ventricular (LV) structure and function using Mendelian randomization. A total of 5596 participants of the UK Biobank were included for whom cardiovascular magnetic resonance imaging and genetic data were available. Major exclusion criteria included nonwhite ethnicity, major cardiovascular disease, and body mass index >30 or <18.5 kg/m2. A genetic risk score to estimate genetically predicted SBP (gSBP) was constructed based on 107 previously established genetic variants. Manual cardiovascular magnetic resonance imaging postprocessing analyses were performed in 300 individuals at the extremes of gSBP (150 highest and lowest). Multivariable linear regression analyses of imaging biomarkers were performed using gSBP as continuous independent variable. All analyses except myocardial strain were validated using previously derived imaging parameters in 2530 subjects. The mean (SD) age of the study population was 62 (7) years, and 52% of subjects were female. Corrected for age, sex, and body surface area, each 10 mm Hg increase in gSBP was significantly (P<0.0056) associated with 4.01 g (SE, 1.28; P=0.002) increase in LV mass and with 2.80% (SE, 0.97; P=0.004) increase in LV global radial strain. In the validation cohort, after correction for age, sex, and body surface area, each 10 mm Hg increase in gSBP was associated with 5.27 g (SE, 1.50; P<0.001) increase in LV mass. Our study provides a novel line of evidence for a causal relationship between SBP and increased LV mass and with increased LV global radial strain.
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Affiliation(s)
- Tom Hendriks
- From the Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - M Abdullah Said
- From the Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Lara M A Janssen
- From the Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - M Yldau van der Ende
- From the Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Dirk J van Veldhuisen
- From the Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Niek Verweij
- From the Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Pim van der Harst
- From the Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands
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121
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Abstract
The older Finnish Twin Cohort (FTC) was established in 1974. The baseline survey was in 1975, with two follow-up health surveys in 1981 and 1990. The fourth wave of assessments was done in three parts, with a questionnaire study of twins born during 1945-1957 in 2011-2012, while older twins were interviewed and screened for dementia in two time periods, between 1999 and 2007 for twins born before 1938 and between 2013 and 2017 for twins born in 1938-1944. The content of these wave 4 assessments is described and some initial results are described. In addition, we have invited twin-pairs, based on response to the cohortwide surveys, to participate in detailed in-person studies; these are described briefly together with key results. We also review other projects based on the older FTC and provide information on the biobanking of biosamples and related phenotypes.
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122
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Fjorder AS, Rasmussen MB, Mehrjouy MM, Nazaryan-Petersen L, Hansen C, Bak M, Grarup N, Nørremølle A, Larsen LA, Vestergaard H, Hansen T, Tommerup N, Bache I. Haploinsufficiency of ARHGAP42 is associated with hypertension. Eur J Hum Genet 2019; 27:1296-1303. [PMID: 30903111 PMCID: PMC6777610 DOI: 10.1038/s41431-019-0382-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 02/18/2019] [Accepted: 03/05/2019] [Indexed: 12/18/2022] Open
Abstract
Family studies have established that the heritability of blood pressure is significant and genome-wide association studies (GWAS) have identified numerous susceptibility loci, including one within the non-coding part of Rho GTPase-activating protein 42 gene (ARHGAP42) on chromosome 11q22.1. Arhgap42-deficient mice have significantly elevated blood pressure, but the phenotypic effects of human variants in the coding part of the gene are unknown. In a Danish cohort of carriers with apparently balanced chromosomal rearrangements, we identified a family where a reciprocal translocation t(11;18)(q22.1;q12.2) segregated with hypertension and obesity. Clinical re-examination revealed that four carriers (age 50-77 years) have had hypertension for several years along with an increased body mass index (34-43 kg/m2). A younger carrier (age 23 years) had normal blood pressure and body mass index. Mapping of the chromosomal breakpoints with mate-pair and Sanger sequencing revealed truncation of ARHGAP42. A decreased expression level of ARHGAP42 mRNA in the blood was found in the translocation carriers relative to controls and allele-specific expression analysis showed monoallelic expression in the translocation carriers, confirming that the truncated allele of ARHGAP42 was not expressed. These findings support that haploinsufficiency of ARHGAP42 leads to an age-dependent hypertension. The other breakpoint truncated a regulatory domain of the CUGBP Elav-like family member 4 (CELF4) gene on chromosome 18q12.2 that harbours several GWAS signals for obesity. We thereby provide additional support for an obesity locus in the CELF4 domain.
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Affiliation(s)
- Amanda S Fjorder
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark
| | - Malene B Rasmussen
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark
- Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet, Copenhagen O, 2100, Denmark
| | - Mana M Mehrjouy
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark
| | - Lusine Nazaryan-Petersen
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark
| | - Claus Hansen
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark
| | - Mads Bak
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark
- Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet, Copenhagen O, 2100, Denmark
| | - Niels Grarup
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - Anne Nørremølle
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark
| | - Lars A Larsen
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark
| | - Henrik Vestergaard
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
- Steno Diabetes Center Copenhagen, Gentofte, 2820, Denmark
| | - Torben Hansen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - Niels Tommerup
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark
| | - Iben Bache
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen N, 2200, Denmark.
- Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet, Copenhagen O, 2100, Denmark.
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123
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Gonzalez-Jaramillo V, Portilla-Fernandez E, Glisic M, Voortman T, Bramer W, Chowdhury R, Roks AJM, Jan Danser AH, Muka T, Nano J, Franco OH. The role of DNA methylation and histone modifications in blood pressure: a systematic review. J Hum Hypertens 2019; 33:703-715. [PMID: 31346255 DOI: 10.1038/s41371-019-0218-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 04/23/2019] [Accepted: 05/07/2019] [Indexed: 01/11/2023]
Abstract
Epigenetic mechanisms might play a role in the pathophysiology of hypertension, a major risk factor for cardiovascular disease and renal failure. We aimed to systematically review studies investigating the association between epigenetic marks (global, candidate-gene or genome-wide methylation of DNA, and histone modifications) and blood pressure or hypertension. Five bibliographic databases were searched until the 7th of December 2018. Of 2984 identified references, 26 articles based on 25 unique studies met our inclusion criteria, which involved a total of 28,382 participants. The five studies that assessed global DNA methylation generally found lower methylation levels with higher systolic blood pressure, diastolic blood pressure, and/or presence of hypertension. Eighteen candidate-gene studies reported, in total, 16 differentially methylated genes, including renin-angiotensin-system-related genes (ACE promoter and AGTR1) and genes involved in sodium homeostasis and extracellular fluid volume maintenance system (NET promoter, SCNN1A, and ADD1). Between the three identified epigenome-wide association studies (EWAS), lower methylation levels of SULF1, EHMT2, and SKOR2 were found in hypertensive patients as compared with normotensive subjects, and lower methylation levels of PHGDH, SLC7A11, and TSPAN2 were associated with higher systolic and diastolic blood pressure. In summary, the most convincing evidence has been reported from candidate-gene studies, which show reproducible epigenetic changes in the interconnected renin-angiotensin and inflammatory systems. Our study highlights gaps in the literature on the role of histone modifications in blood pressure and the need to conduct high-quality studies, in particular, hypothesis-generating studies that may help to elucidate new molecular mechanisms.
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Affiliation(s)
- Valentina Gonzalez-Jaramillo
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands. .,Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland.
| | - Eliana Portilla-Fernandez
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands.,Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus MC, Rotterdam, Netherlands
| | - Marija Glisic
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands.,Leibniz Institute for Prevention Research and Epidemiology-BIPS, Bremen, Germany
| | - Trudy Voortman
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Wichor Bramer
- Leibniz Institute for Prevention Research and Epidemiology-BIPS, Bremen, Germany
| | - Rajiv Chowdhury
- Medical Library, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Anton J M Roks
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus MC, Rotterdam, Netherlands
| | - A H Jan Danser
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus MC, Rotterdam, Netherlands
| | - Taulant Muka
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands.,Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Jana Nano
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands.,Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.,Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Oscar H Franco
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands.,Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
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124
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Improved detection of common variants in coronary artery disease and blood pressure using a pleiotropy cFDR method. Sci Rep 2019; 9:10340. [PMID: 31316127 PMCID: PMC6637206 DOI: 10.1038/s41598-019-46808-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 07/04/2019] [Indexed: 11/24/2022] Open
Abstract
Plenty of genome-wide association studies (GWASs) have identified numerous single nucleotide polymorphisms (SNPs) for coronary artery disease (CAD) and blood pressure (BP). However, these SNPs only explain a small proportion of the heritability of two traits/diseases. Although high BP is a major risk factor for CAD, the genetic intercommunity between them remain largely unknown. To recognize novel loci associated with CAD and BP, a genetic-pleiotropy-informed conditional false discovery rate (cFDR) method was applied on two summary statistics of CAD and BP from existing GWASs. Stratified Q-Q and fold enrichment plots showed a high pleiotropic enrichment of SNPs associated with two traits. Adopting a cFDR of 0.05 as a threshold, 55 CAD-associated loci (25 variants being novel) and 47 BP loci (18 variants being novel) were identified, 25 of which were pleiotropic loci (13 variants being novel) for both traits. Among the 32 genes these 25 SNPs were annotated to, 20 genes were newly detected compared to previous GWASs. This study showed the cFDR approach could improve gene discovery by incorporating GWAS datasets of two related traits. These findings may provide novel understanding of etiology relationships between CAD and BP.
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125
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Abstract
Biomarker discovery and validation are necessary for improving the prediction of clinical outcomes and patient monitoring. Despite considerable interest in biomarker discovery and development, improvements in the range and quality of biomarkers are still needed. The main challenge is how to integrate preclinical data to obtain a reliable biomarker that can be measured with acceptable costs in routine clinical practice. Epigenetic alterations are already being incorporated as valuable candidates in the biomarker field. Furthermore, their reversible nature offers a promising opportunity to ameliorate disease symptoms by using epigenetic-based therapy. Thus, beyond helping to understand disease biology, clinical epigenetics is being incorporated into patient management in oncology, as well as being explored for clinical applicability for other human pathologies such as neurological and infectious diseases and immune system disorders.
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126
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Chen X, He XY, Zhu C, Zhang Y, Li Z, Liu Y, Zhang Y, Yin T, Li Y. Interaction between mitochondrial NADH dehydrogenase subunit-2 5178 C > A and clinical risk factors on the susceptibility of essential hypertension in Chinese population. BMC MEDICAL GENETICS 2019; 20:121. [PMID: 31277597 PMCID: PMC6612147 DOI: 10.1186/s12881-019-0838-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 05/31/2019] [Indexed: 11/10/2022]
Abstract
BACKGROUND The mitochondrial genotype 5178 cytosine/adenine (5178 C > A) within the NADH dehydrogenase subunit-2 gene (ND2) was proved to associate with longevity and predispose resistance to adult-onset diseases. This study aimed to confirm the interactive effects between ND 25178 C > A and clinical risk factors on the susceptibility of essential hypertension in Chinese general population. MATERIALS AND METHODS The relationship between the ND2 5178 C > A variation and the risk of hypertension was investigated in 817 hypertensives and 821 matched normotensives. The interactive effects between ND2 5178 C > A and clinical risk factors were evaluated. RESULTS The ND2 5178 A allele was more frequent in normotensives than in hypertensives (32.64% vs. 24.24%; adjusted OR: 0.62, 95% CI: 0.49-0.79, P = 1.3 × 10- 4). After stratification, the significant association between ND2 5178 C > A and hypertension was found only in current smokers (OR: 0.44, 95% CI: 0.31-0.62), but not in non-current smokers (p < 0.01 for interaction). Smoking status (OR: 1.51, 95% CI: 1.11-2.06) and high triglycerides (OR: 1.57, 95% CI: 1.10-2.24) were found independently associated with hypertension only in carriers of 5178 C allele but not in carriers of 5178 A allele. CONCLUSIONS In conclusion, ND2 5178 A allele could confer a lower risk for essential hypertension in Chinese by the interaction with smoking status. The higher risk of hypertension imposed by smoking and high TG may be altered by ND2 5178 A allele.
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Affiliation(s)
- Xi Chen
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Department of Cardiology, General Hospital of Chinese People's Liberation Army, No.28 Fu Xing Road, Beijing, 100853, China
| | - Xiang-Yu He
- Department of Ophthalmology, 958 Hospital of PLA ARMY, Chongqing, China
| | - Chao Zhu
- Department of Cardiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yusong Zhang
- Department of Cardiology, General Hospital of Chinese People's Liberation Army, No.28 Fu Xing Road, Beijing, 100853, China
| | - Zongbin Li
- Department of Cardiology, General Hospital of Chinese People's Liberation Army, No.28 Fu Xing Road, Beijing, 100853, China
| | - Yuqi Liu
- Department of Cardiology, General Hospital of Chinese People's Liberation Army, No.28 Fu Xing Road, Beijing, 100853, China
| | - Yuxiao Zhang
- Department of Cardiology, General Hospital of Chinese People's Liberation Army, No.28 Fu Xing Road, Beijing, 100853, China
| | - Tong Yin
- Department of Cardiology, General Hospital of Chinese People's Liberation Army, No.28 Fu Xing Road, Beijing, 100853, China.
| | - Yang Li
- Department of Cardiology, General Hospital of Chinese People's Liberation Army, No.28 Fu Xing Road, Beijing, 100853, China.
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128
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Stratton MS, Farina FM, Elia L. Epigenetics and vascular diseases. J Mol Cell Cardiol 2019; 133:148-163. [PMID: 31211956 DOI: 10.1016/j.yjmcc.2019.06.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/17/2019] [Accepted: 06/14/2019] [Indexed: 12/28/2022]
Abstract
Cardiovascular disease remains the number one cause of death and disability worldwide despite significant improvements in diagnosis, prevention, and early intervention efforts. There is an urgent need for improved understanding of cardiovascular processes responsible for disease development in order to develop more effective therapeutic strategies. Recent knowledge gleaned from the study of epigenetic mechanisms in the vasculature has uncovered new potential targets for intervention. Herein, we provide an overview of epigenetic mechanism, and review recent findings related to epigenetics in vascular diseases, highlighting classical epigenetic mechanism such as DNA methylation and histone modification as well as the newly discovered non-coding RNA mechanisms.
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Affiliation(s)
- Matthew S Stratton
- Department of Physiology and Cell Biology, Ohio State University, Columbus, OH 43210, United States of America.
| | - Floriana Maria Farina
- Humanitas Clinical and Research Center, Via Manzoni 113, 20089 Rozzano, MI, Italy; Department of Medical Biotechnology and Translational Medicine, University of Milan, Italy
| | - Leonardo Elia
- Humanitas Clinical and Research Center, Via Manzoni 113, 20089 Rozzano, MI, Italy; Department of Molecular and Translational Medicine, University of Brescia, Italy.
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129
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Affiliation(s)
- Mingyu Liang
- From the Center of Systems Molecular Medicine, Department of Physiology, Medical College of Wisconsin, Milwaukee
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130
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Deng AY, deBlois D, Laporte SA, Gelinas D, Tardif JC, Thorin E, Shi Y, Raignault A, Ménard A. Novel Pathogenesis of Hypertension and Diastolic Dysfunction Caused by M3R (Muscarinic Cholinergic 3 Receptor) Signaling. Hypertension 2019; 72:755-764. [PMID: 30354759 DOI: 10.1161/hypertensionaha.118.11385] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Multiple quantitative trait loci for blood pressure (BP) are localized in humans and rodent models. Model studies have not only produced human quantitative trait loci homologues but also provided unforeseen mechanistic insights into the function modality of quantitative trait loci actions. Presently, congenic knockins, gene-specific knockout, and in vitro and in vivo function studies were used in a rat model of polygenic hypertension, DSS (Dahl salt sensitive) rats. One gene previously unknown in regulating BP was detected with 1 structural mutation(s) for each of 2 quantitative trait loci classified into 2 separate epistatic modules 1 and 3. C17QTL1 in epistatic module 2 was identified to be the gene Chrm3 encoding the M3R (muscarinic cholinergic 3 receptor), since a single function-enhancing M3RT556M conversion correlated with elevated BP. To definitively prove that the enhanced M3R function is responsible for BP changes by the DSS alleles of C17QTL1, we generated a Chrm3 gene-specific rat knockout. We observed a reduction in BP without tachycardia in both sexes, regardless of the amount of dietary salt, and an improvement in diastolic and kidney dysfunctions. All occurred in spite of a significant reduction in M3R-dependent vasodilation. The previously seen sexual dimorphism for C17QTL1 on BP disappeared in the absence of M3R. A Chrm3-coding variation increased M3R signaling, correlating with higher BP. Removing the M3R signaling led to a decrease in BP and improvements in cardiac and renal malfunctions. A novel pathogenic pathway accounted for a portion of polygenic hypertension and has implications in applying new diagnostic and therapeutic uses against hypertension and diastolic dysfunction.
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Affiliation(s)
- Alan Y Deng
- From the Department de Medicine, Research Center-Centre hospitalier de l'Université de Montréal (A.Y.D., A.M.)
| | - Denis deBlois
- Department of Pharmacology, Université de Montréal, Québec, Canada (D.d.)
| | - Stéphane A Laporte
- Department of Medicine (S.A.L.).,Department of Pharmacology and Therapeutics (S.A.L.), McGill University Health Center Research Institute, McGill University, Montréal, Québec, Canada
| | - Danielle Gelinas
- Montreal Heart Institute Research Center (D.G., J.-C.T., E.T., Y.S., A.R.), Université de Montréal, Québec, Canada
| | - Jean-Claude Tardif
- Montreal Heart Institute Research Center (D.G., J.-C.T., E.T., Y.S., A.R.), Université de Montréal, Québec, Canada
| | - Eric Thorin
- Montreal Heart Institute Research Center (D.G., J.-C.T., E.T., Y.S., A.R.), Université de Montréal, Québec, Canada
| | - Yanfen Shi
- Montreal Heart Institute Research Center (D.G., J.-C.T., E.T., Y.S., A.R.), Université de Montréal, Québec, Canada
| | - Adeline Raignault
- Montreal Heart Institute Research Center (D.G., J.-C.T., E.T., Y.S., A.R.), Université de Montréal, Québec, Canada
| | - Annie Ménard
- From the Department de Medicine, Research Center-Centre hospitalier de l'Université de Montréal (A.Y.D., A.M.)
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131
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Kolifarhood G, Daneshpour MS, Khayat BS, Saadati HM, Guity K, Khosravi N, Akbarzadeh M, Sabour S. Generality of genomic findings on blood pressure traits and its usefulness in precision medicine in diverse populations: A systematic review. Clin Genet 2019; 96:17-27. [PMID: 30820929 DOI: 10.1111/cge.13527] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 02/14/2019] [Accepted: 02/21/2019] [Indexed: 01/01/2023]
Abstract
Remarkable findings from genome-wide association studies (GWAS) on blood pressure (BP) traits have made new insights for developing precision medicine toward more effective screening measures. However, generality of GWAS findings in diverse populations is hampered by some technical limitations. There is no comprehensive study to evaluate source(s) of the non-generality of GWAS results on BP traits, so to fill the gap, this systematic review study was carried out. Using MeSH terms, 1545 records were detected through searching in five databases and 49 relevant full-text articles were included in our review. Overall, 749 unique variants were reported, of those, majority of variants have been detected in Europeans and were associated to systolic and diastolic BP traits. Frequency of genetic variants with same position was low in European and non-European populations (n = 38). However, more than 200 (>25%) single nucleotide polymorphisms were found on same loci or linkage disequilibrium blocks (r2 ≥ 80%). Investigating for locus position and linkage disequilibrium of infrequent unique variants showed modest to high reproducibility of findings in Europeans that in some extent was generalizable in other populations. Beyond theoretical limitations, our study addressed other possible sources of non-generality of GWAS findings for BP traits in the same and different origins.
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Affiliation(s)
- Goodarz Kolifarhood
- Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam S Daneshpour
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahareh S Khayat
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein M Saadati
- Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamran Guity
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nasim Khosravi
- Department of Community Health Nursing, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Akbarzadeh
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Siamak Sabour
- Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Safety Promotion and Injury Prevention Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Wang Y, Wang JG. Genome-Wide Association Studies of Hypertension and Several Other Cardiovascular Diseases. Pulse (Basel) 2019; 6:169-186. [PMID: 31049317 PMCID: PMC6489084 DOI: 10.1159/000496150] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 12/07/2018] [Indexed: 12/30/2022] Open
Abstract
Genome-wide association studies (GWAS) have greatly expanded our understanding of the genetic architecture of cardiovascular diseases in the past decade. They have revealed hundreds of suggestive genetic loci that replicate known biological candidate genes and indicate the existence of a previously unsuspected new biology relevant to cardiovascular disorders. These data have been used successfully to create genetic risk scores that may improve risk prediction and the identification of susceptive individuals. Furthermore, these GWAS-identified novel pathways may herald a new era of novel drug development and stratification of patients. In this review, we will briefly summarize the literature on the candidate genes and signals discovered by GWAS on hypertension and coronary artery disease and discuss their implications on clinical medicine.
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Affiliation(s)
| | - Ji-Guang Wang
- Shanghai Key Laboratory of Hypertension, The Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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133
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Samblas M, Milagro FI, Martínez A. DNA methylation markers in obesity, metabolic syndrome, and weight loss. Epigenetics 2019; 14:421-444. [PMID: 30915894 DOI: 10.1080/15592294.2019.1595297] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The fact that not all individuals exposed to the same environmental risk factors develop obesity supports the hypothesis of the existence of underlying genetic and epigenetic elements. There is suggestive evidence that environmental stimuli, such as dietary pattern, particularly during pregnancy and early life, but also in adult life, can induce changes in DNA methylation predisposing to obesity and related comorbidities. In this context, the DNA methylation marks of each individual have emerged not only as a promising tool for the prediction, screening, diagnosis, and prognosis of obesity and metabolic syndrome features, but also for the improvement of weight loss therapies in the context of precision nutrition. The main objectives in this field are to understand the mechanisms involved in transgenerational epigenetic inheritance, and featuring the nutritional and lifestyle factors implicated in the epigenetic modifications. Likewise, DNA methylation modulation caused by diet and environment may be a target for newer therapeutic strategies concerning the prevention and treatment of metabolic diseases.
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Affiliation(s)
- Mirian Samblas
- a Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research , University of Navarra , Pamplona , Spain
| | - Fermín I Milagro
- a Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research , University of Navarra , Pamplona , Spain.,b CIBERobn, CIBER Fisiopatología de la Obesidad y Nutrición , Instituto de Salud Carlos III. Madrid , Spain.,c IdiSNA, Instituto de Investigación Sanitaria de Navarra (IdiSNA) , Pamplona , Spain
| | - Alfredo Martínez
- a Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research , University of Navarra , Pamplona , Spain.,b CIBERobn, CIBER Fisiopatología de la Obesidad y Nutrición , Instituto de Salud Carlos III. Madrid , Spain.,c IdiSNA, Instituto de Investigación Sanitaria de Navarra (IdiSNA) , Pamplona , Spain.,d IMDEA, Research Institute on Food & Health Sciences , Madrid , Spain
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134
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Puigdevall P, Piccari L, Blanco I, Barberà JA, Geiger D, Badenas C, Milà M, Castelo R, Madrigal I. Genetic linkage analysis of a large family identifies FIGN as a candidate modulator of reduced penetrance in heritable pulmonary arterial hypertension. J Med Genet 2019; 56:481-490. [PMID: 30894412 DOI: 10.1136/jmedgenet-2018-105669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 02/12/2019] [Accepted: 02/16/2019] [Indexed: 01/22/2023]
Abstract
BACKGROUND Mapping the genetic component of molecular mechanisms responsible for the reduced penetrance (RP) of rare disorders constitutes one of the most challenging problems in human genetics. Heritable pulmonary arterial hypertension (PAH) is one such disorder characterised by rare mutations mostly occurring in the bone morphogenetic protein receptor type 2 (BMPR2) gene and a wide heterogeneity of penetrance modifier mechanisms. Here, we analyse 32 genotyped individuals from a large Iberian family of 65 members, including 22 carriers of the pathogenic BMPR2 mutation c.1472G>A (p.Arg491Gln), 8 of them diagnosed with PAH by right-heart catheterisation, leading to an RP rate of 36.4%. METHODS We performed a linkage analysis on the genotyping data to search for genetic modifiers of penetrance. Using functional genomics data, we characterised the candidate region identified by linkage analysis. We also predicted the haplotype segregation within the family. RESULTS We identified a candidate chromosome region in 2q24.3, 38 Mb upstream from BMPR2, with significant linkage (LOD=4.09) under a PAH susceptibility model. This region contains common variants associated with vascular aetiology and shows functional evidence that the putative genetic modifier is located in the upstream distal promoter of the fidgetin (FIGN) gene. CONCLUSION Our results suggest that the genetic modifier acts through FIGN transcriptional regulation, whose expression variability would contribute to modulating heritable PAH. This finding may help to advance our understanding of RP in PAH across families sharing the p.Arg491Gln pathogenic mutation in BMPR2.
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Affiliation(s)
- Pau Puigdevall
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Lucilla Piccari
- Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Isabel Blanco
- Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Joan Albert Barberà
- Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Dan Geiger
- Faculty of Computer Science, Technion Israel Institute of Technology, Haifa, Israel
| | - Celia Badenas
- Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Montserrat Milà
- Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Robert Castelo
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain.,Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
| | - Irene Madrigal
- Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
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135
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Arif M, Sadayappan S, Becker RC, Martin LJ, Urbina EM. Epigenetic modification: a regulatory mechanism in essential hypertension. Hypertens Res 2019; 42:1099-1113. [PMID: 30867575 DOI: 10.1038/s41440-019-0248-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/26/2019] [Accepted: 02/12/2019] [Indexed: 12/15/2022]
Abstract
Essential hypertension (EH) is a multifactorial disease of the cardiovascular system that is influenced by the interplay of genetic, epigenetic, and environmental factors. The molecular dynamics underlying EH etiopathogenesis is unknown; however, earlier studies have revealed EH-associated genetic variants. Nevertheless, this finding alone is not sufficient to explain the variability in blood pressure, suggesting that other risk factors are involved, such as epigenetic modifications. Therefore, this review highlights the potential contribution of well-defined epigenetic mechanisms in EH, specifically, DNA methylation, post-translational histone modifications, and microRNAs. We further emphasize global and gene-specific DNA methylation as one of the most well-studied hallmarks among all epigenetic modifications in EH. In addition, post-translational histone modifications, such as methylation, acetylation, and phosphorylation, are described as important epigenetic markers associated with EH. Finally, we discuss microRNAs that affect blood pressure by regulating master genes such as those implicated in the renin-angiotensin-aldosterone system. These epigenetic modifications, which appear to contribute to various cardiovascular diseases, including EH, may be a promising research area for the development of novel future strategies for EH prevention and therapeutics.
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Affiliation(s)
- Mohammed Arif
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, Heart, Lung and Vascular Institute, University of Cincinnati, Cincinnati, OH, 45267, USA.,Division of Preventive Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Sakthivel Sadayappan
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, Heart, Lung and Vascular Institute, University of Cincinnati, Cincinnati, OH, 45267, USA
| | - Richard C Becker
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, Heart, Lung and Vascular Institute, University of Cincinnati, Cincinnati, OH, 45267, USA
| | - Lisa J Martin
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Elaine M Urbina
- Division of Preventive Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.
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136
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Vidrascu EM, Bashore AC, Howard TD, Moore JB. Effects of early- and mid-life stress on DNA methylation of genes associated with subclinical cardiovascular disease and cognitive impairment: a systematic review. BMC MEDICAL GENETICS 2019; 20:39. [PMID: 30866842 PMCID: PMC6417232 DOI: 10.1186/s12881-019-0764-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 02/04/2019] [Indexed: 12/18/2022]
Abstract
Background Traditional and novel risk factors cannot sufficiently explain the differential susceptibility to cardiovascular disease (CVD). Epigenetics may serve to partially explain this residual disparity, with life course stressors shown to modify methylation of genes implicated in various diseases. Subclinical CVD is often comorbid with cognitive impairment (CI), which warrants research into the identification of common genes for both conditions. Methods We conducted a systematic review of the existing literature to identify studies depicting the relationship between life course stressors, DNA methylation, subclinical CVD, and cognition. Results A total of 16 articles (8 human and 8 animal) were identified, with the earliest published in 2008. Four genes (COMT, NOS3, Igfl1, and Sod2) were analyzed by more than one study, but not in association with both CVD and CI. One gene (NR3C1) was associated with both outcomes, albeit not within the same study. There was some consistency among studies with markers used for subclinical CVD and cognition, but considerable variability in stress exposure (especially in human studies), cell type/tissue of interest, method for detection of DNA methylation, and risk factors. Racial and ethnic differences were not considered, but analysis of sex in one human study found statistically significant differentially methylated X-linked loci associated with attention and intelligence. Conclusions This review suggests the need for additional studies to implement more comprehensive and methodologically rigorous study designs that can better identify epigenetic biomarkers to differentiate individuals vulnerable to both subclinical CVD and associated CI. Electronic supplementary material The online version of this article (10.1186/s12881-019-0764-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Elena M Vidrascu
- Department of Family & Community Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA.
| | - Alexander C Bashore
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Timothy D Howard
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Justin B Moore
- Department of Family & Community Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, NC, USA
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137
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Nutile T, Ruggiero D, Herzig AF, Tirozzi A, Nappo S, Sorice R, Marangio F, Bellenguez C, Leutenegger AL, Ciullo M. Whole-Exome Sequencing in the Isolated Populations of Cilento from South Italy. Sci Rep 2019; 9:4059. [PMID: 30858532 PMCID: PMC6411969 DOI: 10.1038/s41598-019-41022-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 02/22/2019] [Indexed: 12/21/2022] Open
Abstract
The present study describes the genetic architecture of the isolated populations of Cilento, through the analysis of exome sequence data of 245 representative individuals of these populations. By annotating the exome variants and cataloguing them according to their frequency and functional effects, we identified 347,684 variants, 67.4% of which are rare and low frequency variants, and 1% of them (corresponding to 319 variants per person) are classified as high functional impact variants; also, 39,946 (11.5% of the total) are novel variants, for which we determined a significant enrichment for deleterious effects. By comparing the allele frequencies in Cilento with those from the Tuscan population from the 1000 Genomes Project Phase 3, we highlighted an increase in allele frequency in Cilento especially for variants which map to genes involved in extracellular matrix formation and organization. Furthermore, among the variants showing increased frequency we identified several known rare disease-causing variants. By different population genetics analyses, we corroborated the status of the Cilento populations as genetic isolates. Finally, we showed that exome data of Cilento represents a useful local reference panel capable of improving the accuracy of genetic imputation, thus adding power to genetic studies of human traits in these populations.
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Affiliation(s)
- T Nutile
- Institute of Genetics and Biophysics A. Buzzati-Traverso-CNR, Naples, Italy
| | - D Ruggiero
- Institute of Genetics and Biophysics A. Buzzati-Traverso-CNR, Naples, Italy.,IRCCS Neuromed, Pozzilli, Isernia, Italy
| | - A F Herzig
- Inserm, UMR 946, Genetic variation and Human diseases, F-75010, Paris, France.,Université Paris-Diderot, Sorbonne Paris Cité, UMR946, F-75010, Paris, France
| | - A Tirozzi
- IRCCS Neuromed, Pozzilli, Isernia, Italy
| | - S Nappo
- AORN Santobono-Pausilipon Hospital, Naples, Italy
| | - R Sorice
- Institute of Genetics and Biophysics A. Buzzati-Traverso-CNR, Naples, Italy
| | - F Marangio
- Institute of Genetics and Biophysics A. Buzzati-Traverso-CNR, Naples, Italy
| | - C Bellenguez
- Inserm, U1167, RID-AGE-Risk factors and molecular determinants of aging-related diseases, F-59000, Lille, France.,Institut Pasteur de Lille, F-59000, Lille, France.,Univ. Lille, U1167-Excellence Laboratory LabEx DISTALZ, F-59000, Lille, France
| | - A L Leutenegger
- Inserm, UMR 946, Genetic variation and Human diseases, F-75010, Paris, France.,Université Paris-Diderot, Sorbonne Paris Cité, UMR946, F-75010, Paris, France
| | - M Ciullo
- Institute of Genetics and Biophysics A. Buzzati-Traverso-CNR, Naples, Italy. .,IRCCS Neuromed, Pozzilli, Isernia, Italy.
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138
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Abstract
After more than 10 years of accumulated efforts, genome-wide association studies (GWAS) have led to many findings, most of which have been deposited into the GWAS Catalog. Between GWAS's inception and March 2017, the GWAS Catalog has collected 2429 studies, 1818 phenotypes, and 28,462 associated SNPs. We reclassified the psychology-related phenotypes into 217 reclassified phenotypes, which accounted for 514 studies and 7052 SNPs. In total, 1223 of the SNPs reached genome-wide significance. Of these, 147 were replicated for the same psychological trait in different studies. Another 305 SNPs were replicated within one original study. The SNPs rs2075650 and rs4420638 were linked to the most replications within a single reclassified phenotype or very similar reclassified phenotypes; both were associated with Alzheimer's disease (AD). Schizophrenia was associated with 74 within-phenotype SNPs reported in independents studies. Alzheimer's disease and schizophrenia were both linked to some physical phenotypes, including cholesterol and body mass index, through common GWAS signals. Alzheimer's disease also shared risk SNPs with age-related phenotypes such as age-related macular degeneration and longevity. Smoking-related SNPs were linked to lung cancer and respiratory function. Alcohol-related SNPs were associated with cardiovascular and digestive system phenotypes and disorders. Two separate studies also identified a shared risk SNP for bipolar disorder and educational attainment. This review revealed a list of reproducible SNPs worthy of future functional investigation. Additionally, by identifying SNPs associated with multiple phenotypes, we illustrated the importance of studying the relationships among phenotypes to resolve the nature of their causal links. The insights within this review will hopefully pave the way for future evidence-based genetic studies.
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139
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Khan F, Momtaz S, Abdollahi M. The relationship between mercury exposure and epigenetic alterations regarding human health, risk assessment and diagnostic strategies. J Trace Elem Med Biol 2019; 52:37-47. [PMID: 30732897 DOI: 10.1016/j.jtemb.2018.11.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/08/2018] [Accepted: 11/11/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Exposure to the environmental toxicants poses a serious threat to human health. The extent of exposure and the development of diseases are interrelated with each other. Chronic exposure to mercury (Hg) increases the risk of developing serious human disorders from embryo to adulthood. OBJECTIVES The purpose of this review is to highlight the most common human disorders induced by Hg exposure on the basis of epigenetic mechanisms. A growing body of evidence shows that Hg exposure leads to alterations in the epigenetic markers. METHODS We performed an organized search of the available literature using PubMed, Google Scholar, Medline, Reaxys, EMBASE and Scopus databases. All the relevant citations, including research and review articles in English were evaluated. The search terms included mercury, Hg, epigenetics, epigenetic alterations, DNA methylation, histone modifications, microRNAs (miRNAs), and risk assessment. RESULTS Data on human toxicity due to Hg exposure shows broad variations in terms of chemical nature, doses, and the rate of exposure. Hg consumption either via foods or environmental sources may create deleterious health effects on various physiological systems at least partially through an epigenetic mechanism. CONCLUSION Hg exposure could trigger epigenetic alterations, hence leading to various human disorders including reduced newborn cerebellum size, adverse behavioral outcomes, atherosclerosis and myocardial infarction. Similarly, in adults, occupational Hg exposure has been associated with an increased risk of autoimmunity. It has been revealed that miRNAs in the woman's cervix are a novel responder to maternal Hg exposure during pregnancy. Hg-induced epigenetic alterations analysis of kidney tissues showed a significant interruption in renal function. DNA methylation and histone post-translation modifications are predominant types of Hg epigenetic alterations.
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Affiliation(s)
- Fazlullah Khan
- Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences (TUMS), Tehran, Iran; Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeideh Momtaz
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran; Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences (TUMS), Tehran, Iran; Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
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140
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Meeks KAC, Henneman P, Venema A, Addo J, Bahendeka S, Burr T, Danquah I, Galbete C, Mannens MMAM, Mockenhaupt FP, Owusu-Dabo E, Rotimi CN, Schulze MB, Smeeth L, Spranger J, Zafarmand MH, Adeyemo A, Agyemang C. Epigenome-wide association study in whole blood on type 2 diabetes among sub-Saharan African individuals: findings from the RODAM study. Int J Epidemiol 2019; 48:58-70. [PMID: 30107520 PMCID: PMC6380309 DOI: 10.1093/ije/dyy171] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2018] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Type 2 diabetes (T2D) results from a complex interplay between genetics and the environment. Several epigenome-wide association studies (EWAS) have found DNA methylation loci associated with T2D in European populations. However, data from African populations are lacking. We undertook the first EWAS for T2D among sub-Saharan Africans, aiming at identifying ubiquitous and novel DNA methylation loci associated with T2D. METHODS The Illumina 450k DNA-methylation array was used on whole blood samples of 713 Ghanaian participants (256 with T2D, 457 controls) from the cross-sectional Research on Obesity and Diabetes among African Migrants (RODAM) study. Differentially methylated positions (DMPs) for T2D and HbA1c were identified through linear regression analysis adjusted for age, sex, estimated cell counts, hybridization batch, array position and body mass index (BMI). We also did a candidate analysis of previously reported EWAS loci for T2D in non-African populations, identified through a systematic literature search. RESULTS Four DMPs [cg19693031 (TXNIP), cg04816311 (C7orf50), cg00574958 (CPT1A), cg07988171 (TPM4)] were associated with T2D after correction for inflation by possible systematic biases. The most strongly associated DMP-cg19693031, TXNIP (P = 2.6E-19) -showed hypomethylation in T2D cases compared with controls. Two out of the four DMPs [cg19693031 (TXNIP), cg04816311 (C7orf50)] remained associated with T2D after adjustment for BMI, and one locus [cg07988171 (TPM4)] that has not been reported previously. CONCLUSIONS In this first EWAS for T2D in sub-Saharan Africans, we have identified four DMPs at epigenome-wide level, one of which is novel. These findings provide insight into the epigenetic loci that underlie the burden of T2D in sub-Saharan Africans.
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Affiliation(s)
- Karlijn A C Meeks
- Department of Public Health, Amsterdam Public Health Research Institute, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Peter Henneman
- Department of Clinical Genetics, Research Institute for Reproduction and Development, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Andrea Venema
- Department of Clinical Genetics, Research Institute for Reproduction and Development, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Juliet Addo
- Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Silver Bahendeka
- Mother Kevin Postgraduate Medical School (MKPGMS), Uganda Martyrs University, Kampala, Uganda
| | - Tom Burr
- Genomics Department, Source BioScience, Nottingham, UK
| | - Ina Danquah
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- Institute for Social Medicine, Epidemiology and Health Economics, Charité – Universitaetsmedizin Berlin, Berlin, Germany
| | - Cecilia Galbete
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Marcel M A M Mannens
- Department of Clinical Genetics, Research Institute for Reproduction and Development, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Frank P Mockenhaupt
- Institute of Tropical Medicine and International Health, Charité – University Medicine Berlin, Berlin, Germany
| | - Ellis Owusu-Dabo
- School of Public Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Charles N Rotimi
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, Bethesda, MD, USA
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Liam Smeeth
- Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Joachim Spranger
- Department of Endocrinology and Metabolism, Charité – University Medicine Berlin, Berlin, Germany
- Partner site Berlin, German Centre for Cardiovascular Research (DZHK), Berlin, Germany
- Center for Cardiovascular Research (CCR), Charité – University Medicine Berlin, Berlin, Germany
| | - Mohammad H Zafarmand
- Department of Public Health, Amsterdam Public Health Research Institute, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam Public Health Research Institute, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Adebowale Adeyemo
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, Bethesda, MD, USA
| | - Charles Agyemang
- Department of Public Health, Amsterdam Public Health Research Institute, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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141
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Messing M, Souza LCD, Cavalla F, Kookal KK, Rizzo G, Walji M, Silva R, Letra A. Investigating Potential Correlations between Endodontic Pathology and Cardiovascular Diseases Using Epidemiological and Genetic Approaches. J Endod 2019; 45:104-110. [DOI: 10.1016/j.joen.2018.10.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 09/04/2018] [Accepted: 10/28/2018] [Indexed: 12/13/2022]
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142
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Giri A, Hellwege JN, Keaton JM, Park J, Qiu C, Warren HR, Torstenson ES, Kovesdy CP, Sun YV, Wilson OD, Robinson-Cohen C, Roumie CL, Chung CP, Birdwell KA, Damrauer SM, DuVall SL, Klarin D, Cho K, Wang Y, Evangelou E, Cabrera CP, Wain LV, Shrestha R, Mautz BS, Akwo EA, Sargurupremraj M, Debette S, Boehnke M, Scott LJ, Luan J, Zhao JH, Willems SM, Thériault S, Shah N, Oldmeadow C, Almgren P, Li-Gao R, Verweij N, Boutin TS, Mangino M, Ntalla I, Feofanova E, Surendran P, Cook JP, Karthikeyan S, Lahrouchi N, Liu C, Sepúlveda N, Richardson TG, Kraja A, Amouyel P, Farrall M, Poulter NR, Laakso M, Zeggini E, Sever P, Scott RA, Langenberg C, Wareham NJ, Conen D, Palmer CNA, Attia J, Chasman DI, Ridker PM, Melander O, Mook-Kanamori DO, Harst PVD, Cucca F, Schlessinger D, Hayward C, Spector TD, Jarvelin MR, Hennig BJ, Timpson NJ, Wei WQ, Smith JC, Xu Y, Matheny ME, Siew EE, Lindgren C, Herzig KH, Dedoussis G, Denny JC, Psaty BM, Howson JMM, Munroe PB, Newton-Cheh C, Caulfield MJ, Elliott P, Gaziano JM, Concato J, Wilson PWF, Tsao PS, Velez Edwards DR, Susztak K, O'Donnell CJ, Hung AM, Edwards TL. Trans-ethnic association study of blood pressure determinants in over 750,000 individuals. Nat Genet 2019; 51:51-62. [PMID: 30578418 PMCID: PMC6365102 DOI: 10.1038/s41588-018-0303-9] [Citation(s) in RCA: 268] [Impact Index Per Article: 53.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 10/31/2018] [Indexed: 12/15/2022]
Abstract
In this trans-ethnic multi-omic study, we reinterpret the genetic architecture of blood pressure to identify genes, tissues, phenomes and medication contexts of blood pressure homeostasis. We discovered 208 novel common blood pressure SNPs and 53 rare variants in genome-wide association studies of systolic, diastolic and pulse pressure in up to 776,078 participants from the Million Veteran Program (MVP) and collaborating studies, with analysis of the blood pressure clinical phenome in MVP. Our transcriptome-wide association study detected 4,043 blood pressure associations with genetically predicted gene expression of 840 genes in 45 tissues, and mouse renal single-cell RNA sequencing identified upregulated blood pressure genes in kidney tubule cells.
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Affiliation(s)
- Ayush Giri
- Division of Quantitative Sciences, Department of Obstetrics & Gynecology, Vanderbilt Genetics Institute, Vanderbilt Epidemiology Center, Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, TN, USA
- Biomedical Laboratory Research and Development, Tennessee Valley Healthcare System (626)/Vanderbilt University, Nashville, TN, USA
| | - Jacklyn N Hellwege
- Biomedical Laboratory Research and Development, Tennessee Valley Healthcare System (626)/Vanderbilt University, Nashville, TN, USA
- Division of Epidemiology, Department of Medicine, Institute for Medicine and Public Health, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Vanderbilt University, Nashville, TN, USA
| | - Jacob M Keaton
- Biomedical Laboratory Research and Development, Tennessee Valley Healthcare System (626)/Vanderbilt University, Nashville, TN, USA
- Division of Epidemiology, Department of Medicine, Institute for Medicine and Public Health, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Vanderbilt University, Nashville, TN, USA
| | - Jihwan Park
- Department of Medicine, Renal Electrolyte and Hypertension Division, University of Pennsylvania, Philadelphia, PA, USA
| | - Chengxiang Qiu
- Department of Medicine, Renal Electrolyte and Hypertension Division, University of Pennsylvania, Philadelphia, PA, USA
| | - Helen R Warren
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- National Institute for Health Research Barts Cardiovascular Biomedical Research Centre, Queen Mary University of London, London, UK
| | - Eric S Torstenson
- Biomedical Laboratory Research and Development, Tennessee Valley Healthcare System (626)/Vanderbilt University, Nashville, TN, USA
- Division of Epidemiology, Department of Medicine, Institute for Medicine and Public Health, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Vanderbilt University, Nashville, TN, USA
| | - Csaba P Kovesdy
- Nephrology Section, Memphis VA Medical Center, Memphis, TN, USA
| | - Yan V Sun
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, USA
- Department of Biomedical Informatics, Emory University School of Medicine, Atlanta, GA, USA
| | - Otis D Wilson
- Biomedical Laboratory Research and Development, Tennessee Valley Healthcare System (626)/Vanderbilt University, Nashville, TN, USA
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Cassianne Robinson-Cohen
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Christianne L Roumie
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Geriatrics Research Education and Clinical Center, Tennessee Valley Health System, Veteran's Health Administration, Nashville, TN, USA
| | - Cecilia P Chung
- Division of Rheumatology and Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Kelly A Birdwell
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Division of Nephrology, Department of Medicine, Nashville Veteran Affairs Hospital, Nashville, TN, USA
| | - Scott M Damrauer
- Department of Surgery, Corporal Michael Crescenz VA Medical Center, Philadelphia, PA, USA
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Scott L DuVall
- VA Salt Lake City Health Care System, Salt Lake City, UT, USA
- University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Derek Klarin
- VA Boston Health Care System, Boston, MA, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Kelly Cho
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, USA
- Division of Aging, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Yu Wang
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Evangelos Evangelou
- Department of Epidemiology and Biostatistics, Imperial College London, London, UK
- Department of Hygiene and Epidemiology, University of Ioannina Medical School, Ioannina, Greece
| | - Claudia P Cabrera
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- National Institute for Health Research Barts Cardiovascular Biomedical Research Centre, Queen Mary University of London, London, UK
| | - Louise V Wain
- Department of Health Sciences, University of Leicester, Leicester, UK
- National Institute for Health Research, Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Rojesh Shrestha
- Department of Medicine, Renal Electrolyte and Hypertension Division, University of Pennsylvania, Philadelphia, PA, USA
| | - Brian S Mautz
- Division of Epidemiology, Department of Medicine, Institute for Medicine and Public Health, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Vanderbilt University, Nashville, TN, USA
| | - Elvis A Akwo
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Stéphanie Debette
- University of Bordeaux, Bordeaux Population Health Research Center, INSERM UMR 1219, Bordeaux, France
- Department of Neurology, Bordeaux University Hospital, Bordeaux, France
| | - Michael Boehnke
- Department of Biostatistics and Center for Statistical Genetics, University of Michigan, Ann Arbor, MI, USA
| | - Laura J Scott
- Department of Biostatistics and Center for Statistical Genetics, University of Michigan, Ann Arbor, MI, USA
| | - Jian'an Luan
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - Jing-Hua Zhao
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - Sara M Willems
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - Sébastien Thériault
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Molecular Biology, Medical Biochemistry and Pathology, Laval University, Quebec City, Quebec, Canada
| | - Nabi Shah
- Division of Molecular and Clinical Medicine, Pat Macpherson Centre for Pharmacogenetics and Pharmacogenomics, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | | | - Peter Almgren
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Ruifang Li-Gao
- Leiden University Medical Center, Leiden, the Netherlands
| | - Niek Verweij
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Thibaud S Boutin
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Massimo Mangino
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
- NIHR Biomedical Research Centre at Guy's and St Thomas' Foundation Trust, London, UK
| | - Ioanna Ntalla
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Elena Feofanova
- Human Genetics Center, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Praveen Surendran
- BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - James P Cook
- Department of Biostatistics, University of Liverpool, Liverpool, UK
| | - Savita Karthikeyan
- BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Najim Lahrouchi
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Cardiovascular Research Center, Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Heart Center, Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Chunyu Liu
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Nuno Sepúlveda
- Immunology and Infection Department, London School of Hygiene & Tropical Medicine, London, UK
| | - Tom G Richardson
- MRC Integrative Epidemiology Unit (IEU), Bristol Medical School (Population Health Sciences), University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK
| | - Aldi Kraja
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
- Division of Statistical Genomics, Washington University School of Medicine, St. Louis, MO, USA
| | - Philippe Amouyel
- Risk Factors and Molecular Determinants of Aging-Related Diseases (RID-AGE), University of Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167, Lille, France
| | - Martin Farrall
- Department of Cardiovascular Medicine, The Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - Neil R Poulter
- International Centre for Circulatory Health, Imperial College London, London, UK
| | - Markku Laakso
- University of Eastern Finland, School of Medicine, Kuopio, Finland
| | | | - Peter Sever
- National Heart and Lung Institute, Imperial College London, Hammersmith Campus, London, UK
| | - Robert A Scott
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - Claudia Langenberg
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - Nicholas J Wareham
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - David Conen
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Colin Neil Alexander Palmer
- Division of Molecular and Clinical Medicine, Pat Macpherson Centre for Pharmacogenetics and Pharmacogenomics, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - John Attia
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
- Faculty of Health, University of Newcastle, Newcastle, New South Wales, Australia
| | - Daniel I Chasman
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Paul M Ridker
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Olle Melander
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | | | - Pim van der Harst
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Francesco Cucca
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche, Monserrato, Cagliari, Italy
- Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, Sassari, Italy
| | - David Schlessinger
- Laboratory of Genetics and Genomics, National Institute on Aging, NIH, Baltimore, MD, USA
| | - Caroline Hayward
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Tim D Spector
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | - Marjo-Riitta Jarvelin
- MRC-PHE Centre for Environment & Health, Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland
- Biocenter Oulu, University of Oulu, Oulu, Finland
- Unit of Primary Health Care, Oulu University Hospital, OYS, Oulu, Finland
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, Middlesex, UK
| | - Branwen J Hennig
- Wellcome Trust, London, UK
- MRC Unit The Gambia, Atlantic Boulevard, Fajara, Banjul, The Gambia
- London School of Hygiene & Tropical Medicine, London, UK
| | - Nicholas J Timpson
- MRC Integrative Epidemiology Unit (IEU), Bristol Medical School (Population Health Sciences), University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK
| | - Wei-Qi Wei
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Joshua C Smith
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Yaomin Xu
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Michael E Matheny
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Geriatrics Research Education and Clinical Center, Tennessee Valley Health System, Veteran's Health Administration, Nashville, TN, USA
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Edward E Siew
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Geriatrics Research Education and Clinical Center, Tennessee Valley Health System, Veteran's Health Administration, Nashville, TN, USA
| | - Cecilia Lindgren
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
- Big Data Institute at the Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, UK
| | - Karl-Heinz Herzig
- Institute of Biomedicine, Biocenter of Oulu, Medical Research Center, Oulu University and Oulu University Hospital, Oulu, Finland
- Department of Gastroenterology and Metabolism, Poznan University of Medical Sciences, Poznan, Poland
| | - George Dedoussis
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Joshua C Denny
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Bruce M Psaty
- Departments of Medicine, University of Washington, Seattle, WA, USA
- Departments of Epidemiology, University of Washington, Seattle, WA, USA
- Departments of Health Services, University of Washington, Seattle, WA, USA
- Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
| | - Joanna M M Howson
- BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Patricia B Munroe
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- National Institute for Health Research Barts Cardiovascular Biomedical Research Centre, Queen Mary University of London, London, UK
| | - Christopher Newton-Cheh
- Cardiovascular Research Center, Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Mark J Caulfield
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- National Institute for Health Research Barts Cardiovascular Biomedical Research Centre, Queen Mary University of London, London, UK
| | - Paul Elliott
- MRC-PHE Centre for Environment & Health, Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
- National Institute for Health Research Imperial Biomedical Research Centre, Imperial College Healthcare NHS Trust, Imperial College London, London, UK
- UK Dementia Research Institute at Imperial College London, London, UK
| | - J Michael Gaziano
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, USA
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - John Concato
- Clinical Epidemiology Research Center (CERC), VA Cooperative Studies Program, VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Peter W F Wilson
- Atlanta VA Medical Center, Atlanta, GA, USA
- Emory Clinical Cardiovascular Research Institute, Atlanta, GA, USA
| | - Philip S Tsao
- VA Palo Alto Health Care System, Palo Alto, CA, USA
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Digna R Velez Edwards
- Division of Quantitative Sciences, Department of Obstetrics & Gynecology, Vanderbilt Genetics Institute, Vanderbilt Epidemiology Center, Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, TN, USA
- Biomedical Laboratory Research and Development, Tennessee Valley Healthcare System (626)/Vanderbilt University, Nashville, TN, USA
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Katalin Susztak
- Department of Medicine, Renal Electrolyte and Hypertension Division, University of Pennsylvania, Philadelphia, PA, USA
- Department of Genetics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Christopher J O'Donnell
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- VA Boston Healthcare, Section of Cardiology and Department of Medicine, Boston, MA, USA
| | - Adriana M Hung
- Biomedical Laboratory Research and Development, Tennessee Valley Healthcare System (626)/Vanderbilt University, Nashville, TN, USA.
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Todd L Edwards
- Biomedical Laboratory Research and Development, Tennessee Valley Healthcare System (626)/Vanderbilt University, Nashville, TN, USA.
- Division of Epidemiology, Department of Medicine, Institute for Medicine and Public Health, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Vanderbilt University, Nashville, TN, USA.
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143
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Dee RA, Mangum KD, Bai X, Mack CP, Taylor JM. Druggable targets in the Rho pathway and their promise for therapeutic control of blood pressure. Pharmacol Ther 2019; 193:121-134. [PMID: 30189292 PMCID: PMC7235948 DOI: 10.1016/j.pharmthera.2018.09.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The prevalence of high blood pressure (also known as hypertension) has steadily increased over the last few decades. Known as a silent killer, hypertension increases the risk for cardiovascular disease and can lead to stroke, heart attack, kidney failure and associated sequela. While numerous hypertensive therapies are currently available, it is estimated that only half of medicated patients exhibit blood pressure control. This signifies the need for a better understanding of the underlying cause of disease and for more effective therapies. While blood pressure homeostasis is very complex and involves the integrated control of multiple body systems, smooth muscle contractility and arterial resistance are important contributors. Strong evidence from pre-clinical animal models and genome-wide association studies indicate that smooth muscle contraction and BP homeostasis are governed by the small GTPase RhoA and its downstream target, Rho kinase. In this review, we summarize the signaling pathways and regulators that impart tight spatial-temporal control of RhoA activity in smooth muscle cells and discuss current therapeutic strategies to target these RhoA pathway components. We also discuss known allelic variations in the RhoA pathway and consider how these polymorphisms may affect genetic risk for hypertension and its clinical manifestations.
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Affiliation(s)
- Rachel A Dee
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Kevin D Mangum
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Xue Bai
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Christopher P Mack
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27599, USA; McAllister Heart Institute, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Joan M Taylor
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27599, USA; McAllister Heart Institute, University of North Carolina, Chapel Hill, NC 27599, USA.
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144
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Costantino S, Libby P, Kishore R, Tardif JC, El-Osta A, Paneni F. Epigenetics and precision medicine in cardiovascular patients: from basic concepts to the clinical arena. Eur Heart J 2018; 39:4150-4158. [PMID: 29069341 PMCID: PMC6293269 DOI: 10.1093/eurheartj/ehx568] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/04/2017] [Accepted: 09/22/2017] [Indexed: 12/11/2022] Open
Abstract
Cardiovascular diseases (CVDs) remain the leading cause of mortality worldwide and also inflict major burdens on morbidity, quality of life, and societal costs. Considering that CVD preventive medications improve vascular outcomes in less than half of patients (often relative risk reductions range from 12% to 20% compared with placebo), precision medicine offers an attractive approach to refine the targeting of CVD medications to responsive individuals in a population and thus allocate resources more wisely and effectively. New tools furnished by advances in basic science and translational medicine could help achieve this goal. This approach could reach beyond the practitioners 'eyeball' assessment or venerable markers derived from the physical examination and standard laboratory evaluation. Advances in genetics have identified novel pathways and targets that operate in numerous diseases, paving the way for 'precision medicine'. Yet the inherited genome determines only part of an individual's risk profile. Indeed, standard genomic approaches do not take into account the world of regulation of gene expression by modifications of the 'epi'genome. Epigenetic modifications defined as 'heritable changes to the genome that do not involve changes in DNA sequence' have emerged as a new layer of biological regulation in CVD and could advance individualized risk assessment as well as devising and deploying tailored therapies. This review, therefore, aims to acquaint the cardiovascular community with the rapidly advancing and evolving field of epigenetics and its implications in cardiovascular precision medicine.
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Affiliation(s)
- Sarah Costantino
- Center for Molecular Cardiology, University of Zürich, Wagistrasse 12, Schlieren, Zurich, Switzerland
| | - Peter Libby
- Brigham and Women’s Hospital, Division of Cardiovascular Medicine, Boston, MA, USA
| | - Raj Kishore
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, MERB-953, 3500 N Broad Street, Philadelphia, PA, USA
- Department of Pharmacology, Temple University, Philadelphia, PA, USA
| | - Jean-Claude Tardif
- Montreal Health Innovations Coordinating Center (MHICC), Montreal, Canada
- Montreal Heart Institute, Université de Montréal, Montreal, Canada
| | - Assam El-Osta
- Central Clinical School, Faculty of Medicine, Monash University, Victoria, Australia
- Department of Pathology, The University of Melbourne, Parkville, Victoria, Australia
- Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR
| | - Francesco Paneni
- Center for Molecular Cardiology, University of Zürich, Wagistrasse 12, Schlieren, Zurich, Switzerland
- University Heart Center, Cardiology, University Hospital Zürich, Zürich, Switzerland
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145
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Carey RM, Muntner P, Bosworth HB, Whelton PK. Reprint of: Prevention and Control of Hypertension. J Am Coll Cardiol 2018; 72:2996-3011. [DOI: 10.1016/j.jacc.2018.10.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/26/2018] [Accepted: 07/02/2018] [Indexed: 12/12/2022]
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146
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Interethnic analyses of blood pressure loci in populations of East Asian and European descent. Nat Commun 2018; 9:5052. [PMID: 30487518 PMCID: PMC6261994 DOI: 10.1038/s41467-018-07345-0] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 10/29/2018] [Indexed: 01/11/2023] Open
Abstract
Blood pressure (BP) is a major risk factor for cardiovascular disease and more than 200 genetic loci associated with BP are known. Here, we perform a multi-stage genome-wide association study for BP (max N = 289,038) principally in East Asians and meta-analysis in East Asians and Europeans. We report 19 new genetic loci and ancestry-specific BP variants, conforming to a common ancestry-specific variant association model. At 10 unique loci, distinct non-rare ancestry-specific variants colocalize within the same linkage disequilibrium block despite the significantly discordant effects for the proxy shared variants between the ethnic groups. The genome-wide transethnic correlation of causal-variant effect-sizes is 0.898 and 0.851 for systolic and diastolic BP, respectively. Some of the ancestry-specific association signals are also influenced by a selective sweep. Our results provide new evidence for the role of common ancestry-specific variants and natural selection in ethnic differences in complex traits such as BP. Blood pressure (BP) is a major risk factor for cardiovascular disease and more than 200 genetic loci associated with BP are known. Here, the authors perform discovery GWAS for BP in East Asians and meta-analysis in East Asians and Europeans and report ancestry-specific BP SNPs and selection signals.
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147
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Fava C, Bonafini S. Eicosanoids via CYP450 and cardiovascular disease: Hints from genetic and nutrition studies. Prostaglandins Other Lipid Mediat 2018; 139:41-47. [DOI: 10.1016/j.prostaglandins.2018.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/25/2018] [Accepted: 10/03/2018] [Indexed: 01/11/2023]
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148
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van Laer SD, Snijder MB, Agyemang C, Peters RJ, van den Born BJH. Ethnic differences in hypertension prevalence and contributing determinants - the HELIUS study. Eur J Prev Cardiol 2018; 25:1914-1922. [PMID: 30296837 DOI: 10.1177/2047487318803241] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
AIMS There are important ethnic differences in the prevalence of hypertension and hypertension-mediated cardiovascular complications, but there is ongoing debate on the nature of these differences. We assessed the contribution of lifestyle, socio-economic and psychosocial variables to ethnic differences in hypertension prevalence. METHODS We used cross-sectional data from the Healthy Life In an Urban Setting (HELIUS) study, including 21,520 participants aged 18-70 years of South-Asian Surinamese ( n = 3032), African Surinamese ( n = 4124), Ghanaian ( n = 2331), Turkish ( n = 3594), Moroccan ( n = 3891) and Dutch ( n = 4548) ethnic origin. Ethnic differences in hypertension prevalence rates were examined using logistic regression models. RESULTS After adjustment for a broad range of variables, significant higher hypertension prevalence compared to the Dutch population remained in Ghanaian men (odds ratio 2.62 (95% confidence interval 2.14-3.22)) and women (4.16 (3.39-5.12)), African Surinamese men (1.62 (1.37-1.92)) and women (2.70 (2.29-3.17)) and South-Asian Surinamese men (1.22 (1.15-1.46)) and women (1.84 (1.53-2.22)). In contrast, Turkish men (0.72 (0.60-0.87)) and Moroccan men (0.50 (0.41-0.61)) and women (0.57 (0.46-0.71)) had a lower hypertension prevalence compared with the Dutch population. The differences in hypertension prevalence were present across different age groups and persisted after stratification for body mass index and waist-to-hip ratio. CONCLUSION Large ethnic differences in hypertension prevalence exist that are already present in young adulthood. Adjustment for common variables known to be associated with a higher risk of hypertension explained the higher adjusted prevalence rates among Turks and Moroccans, but not in African and South-Asian descent populations who remained to have a higher rate of hypertension compared to the Dutch host population.
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Affiliation(s)
- Stag D van Laer
- 1 Department of Internal and Vascular Medicine, Academic Medical Center, the Netherlands
| | - Marieke B Snijder
- 2 Department of Public Health, Amsterdam Public Health Research Institute, the Netherlands.,3 Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam Public Health Research Institute, the Netherlands
| | - Charles Agyemang
- 2 Department of Public Health, Amsterdam Public Health Research Institute, the Netherlands
| | - Ron Jg Peters
- 4 Department of Cardiology, Academic Medical Center, the Netherlands
| | - Bert-Jan H van den Born
- 1 Department of Internal and Vascular Medicine, Academic Medical Center, the Netherlands.,2 Department of Public Health, Amsterdam Public Health Research Institute, the Netherlands
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149
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Malousi A, Andreou AZ, Georgiou E, Tzimagiorgis G, Kovatsi L, Kouidou S. Age-dependent methylation in epigenetic clock CpGs is associated with G-quadruplex, co-transcriptionally formed RNA structures and tentative splice sites. Epigenetics 2018; 13:808-821. [PMID: 30270726 PMCID: PMC6224212 DOI: 10.1080/15592294.2018.1514232] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Horvath's epigenetic clock consists of 353 CpGs whose methylation levels can accurately predict the age of individuals. Using bioinformatics analysis, we investigated the conformation, energy characteristics and presence of tentative splice sites of the sequences surrounding the epigenetic clock CpGs, in relation to the median methylation changes in different ages, the presence of CpG islands and their position in genes. Common characteristics in the 100 nt sequences surrounding the epigenetic clock CpGs are G-quadruplexes and/or tentative splice site motifs. Median methylation increases significantly in sequences which adopt less stable structures during transcription. Methylation is higher when CpGs overlap with G-quadruplexes than when they precede them. Median methylation in epigenetic clock CpGs is higher in sequences expressed as single products rather than in multiple products and those containing single donors and multiple acceptors. Age-related methylation variation is significant in sequences without G-quadruplexes, particularly those producing low stability nascent RNA and those with splice sites. CpGs in sequences close to transcription start sites and those which are possibly never expressed (hypothetical proteins) undergo similar extent of age-related median methylation decrease and increase. Preservation of methylation is observed in CpG islands without G-quadruplexes, contrary to CpGs far from CpG islands (open sea). Sequences containing G-quadruplexes and RNA pseudoknots, determining the recognition by H3K27 histone methyltransferase, are hypomethylated. The presented structural DNA and co-transcriptional RNA analysis of epigenetic clock sequences, foreshadows the association of age-related methylation changes with the principle biological processes of DNA and histone methylation, splicing and chromatin silencing.
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Affiliation(s)
- Andigoni Malousi
- a Laboratory of Biological Chemistry , Medical School, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | | | - Elisavet Georgiou
- a Laboratory of Biological Chemistry , Medical School, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Georgios Tzimagiorgis
- a Laboratory of Biological Chemistry , Medical School, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Leda Kovatsi
- c Laboratory of Forensic Medicine & Toxicology , Medical School, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Sofia Kouidou
- a Laboratory of Biological Chemistry , Medical School, Aristotle University of Thessaloniki , Thessaloniki , Greece
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Carey RM, Muntner P, Bosworth HB, Whelton PK. Prevention and Control of Hypertension: JACC Health Promotion Series. J Am Coll Cardiol 2018; 72:1278-1293. [PMID: 30190007 PMCID: PMC6481176 DOI: 10.1016/j.jacc.2018.07.008] [Citation(s) in RCA: 261] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/26/2018] [Accepted: 07/02/2018] [Indexed: 02/07/2023]
Abstract
Hypertension, the leading risk factor for cardiovascular disease, originates from combined genetic, environmental, and social determinants. Environmental factors include overweight/obesity, unhealthy diet, excessive dietary sodium, inadequate dietary potassium, insufficient physical activity, and consumption of alcohol. Prevention and control of hypertension can be achieved through targeted and/or population-based strategies. For control of hypertension, the targeted strategy involves interventions to increase awareness, treatment, and control in individuals. Corresponding population-based strategies involve interventions designed to achieve a small reduction in blood pressure (BP) in the entire population. Having a usual source of care, optimizing adherence, and minimizing therapeutic inertia are associated with higher rates of BP control. The Chronic Care Model, a collaborative partnership among the patient, provider, and health system, incorporates a multilevel approach for control of hypertension. Optimizing the prevention, recognition, and care of hypertension requires a paradigm shift to team-based care and the use of strategies known to control BP.
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Affiliation(s)
- Robert M Carey
- Department of Medicine, University of Virginia, Charlottesville, Virginia.
| | - Paul Muntner
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Hayden B Bosworth
- Departments of Population Health Sciences, Medicine, Psychiatry and Behavioral Sciences and School of Nursing, Duke University, Durham, North Carolina. https://twitter.com/HaydenBosworth
| | - Paul K Whelton
- Department of Epidemiology, Tulane University, New Orleans, Louisiana
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