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van der Linden EL, Meeks KAC, Chilunga F, Hayfron-Benjamin C, Bahendeka S, Klipstein-Grobusch K, Venema A, van den Born BJ, Agyemang C, Henneman P, Adeyemo A. Epigenome-wide association study of plasma lipids in West Africans: the RODAM study. EBioMedicine 2023; 89:104469. [PMID: 36791658 PMCID: PMC10025759 DOI: 10.1016/j.ebiom.2023.104469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND DNA-methylation has been associated with plasma lipid concentration in populations of diverse ethnic backgrounds, but epigenome-wide association studies (EWAS) in West-Africans are lacking. The aim of this study was to identify DNA-methylation loci associated with plasma lipids in Ghanaians. METHODS We conducted an EWAS using Illumina 450k DNA-methylation array profiles of extracted DNA from 663 Ghanaian participants. Differentially methylated positions (DMPs) were examined for association with plasma total cholesterol (TC), LDL-cholesterol, HDL-cholesterol, and triglycerides concentrations using linear regression models adjusted for age, sex, body mass index, diabetes mellitus, and technical covariates. Findings were replicated in independent cohorts of different ethnicities. FINDINGS We identified one significantly associated DMP with triglycerides (cg19693031 annotated to TXNIP, regression coefficient beta -0.26, false discovery rate adjusted p-value 0.001), which replicated in-silico in South African Batswana, African American, and European populations. From the top five DMPs with the lowest nominal p-values, two additional DMPs for triglycerides (CPT1A, ABCG1), two DMPs for LDL-cholesterol (EPSTI1, cg13781819), and one for TC (TXNIP) replicated. With the exception of EPSTI1, these loci are involved in lipid transport/metabolism or are known GWAS-associated loci. The top 5 DMPs per lipid trait explained 9.5% in the variance of TC, 8.3% in LDL-cholesterol, 6.1% in HDL-cholesterol, and 11.0% in triglycerides. INTERPRETATION The top DMPs identified in this study are in loci that play a role in lipid metabolism across populations, including West-Africans. Future studies including larger sample size, longitudinal study design and translational research is needed to increase our understanding on the epigenetic regulation of lipid metabolism among West-African populations. FUNDING European Commission under the Framework Programme (grant number: 278901).
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Affiliation(s)
- Eva L van der Linden
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands; Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands.
| | - Karlijn A C Meeks
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands; Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Felix Chilunga
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - Charles Hayfron-Benjamin
- Department of Physiology, University of Ghana Medical School, Accra, Ghana; Department of Anesthesia and Critical Care, Korle Bu Teaching Hospital, Accra, Ghana
| | | | - Kerstin Klipstein-Grobusch
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, the Netherlands; Division of Epidemiology and Biostatistics, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Andrea Venema
- Department of Human Genetics, Genome Diagnostics Laboratory Amsterdam, Reproduction & Development, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Bert-Jan van den Born
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands; Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Charles Agyemang
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - Peter Henneman
- Department of Human Genetics, Genome Diagnostics Laboratory Amsterdam, Reproduction & Development, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Adebowale Adeyemo
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
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van der Linden EL, Halley A, Meeks KAC, Chilunga F, Hayfron-Benjamin C, Venema A, Garrelds IM, Danser AHJ, van den Born BJ, Henneman P, Agyemang C. An explorative epigenome-wide association study of plasma renin and aldosterone concentration in a Ghanaian population: the RODAM study. Clin Epigenetics 2022; 14:159. [PMID: 36457109 PMCID: PMC9714193 DOI: 10.1186/s13148-022-01378-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/16/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND The epigenetic regulation of the renin-angiotensin-aldosterone system (RAAS) potentially plays a role in the pathophysiology underlying the high burden of hypertension in sub-Saharan Africans (SSA). Here we report the first epigenome-wide association study (EWAS) of plasma renin and aldosterone concentrations and the aldosterone-to-renin ratio (ARR). METHODS Epigenome-wide DNA methylation was measured using the Illumina 450K array on whole blood samples of 68 Ghanaians. Differentially methylated positions (DMPs) were assessed for plasma renin concentration, aldosterone, and ARR using linear regression models adjusted for age, sex, body mass index, diabetes mellitus, hypertension, and technical covariates. Additionally, we extracted methylation loci previously associated with hypertension, kidney function, or that were annotated to RAAS-related genes and associated these with renin and aldosterone concentration. RESULTS We identified one DMP for renin, ten DMPs for aldosterone, and one DMP associated with ARR. Top DMPs were annotated to the PTPRN2, SKIL, and KCNT1 genes, which have been reported in relation to cardiometabolic risk factors, atherosclerosis, and sodium-potassium handling. Moreover, EWAS loci previously associated with hypertension, kidney function, or RAAS-related genes were also associated with renin, aldosterone, and ARR. CONCLUSION In this first EWAS on RAAS hormones, we identified DMPs associated with renin, aldosterone, and ARR in a SSA population. These findings are a first step in understanding the role of DNA methylation in regulation of the RAAS in general and in a SSA population specifically. Replication and translational studies are needed to establish the role of these DMPs in the hypertension burden in SSA populations.
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Affiliation(s)
- Eva L. van der Linden
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Location AMC, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands ,grid.7177.60000000084992262Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Adrienne Halley
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Location AMC, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands
| | - Karlijn A. C. Meeks
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Location AMC, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands ,grid.280128.10000 0001 2233 9230Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD USA
| | - Felix Chilunga
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Location AMC, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands
| | - Charles Hayfron-Benjamin
- grid.8652.90000 0004 1937 1485Department of Physiology, University of Ghana Medical School, Accra, Ghana ,grid.415489.50000 0004 0546 3805Department of Anesthesia and Critical Care, Korle Bu Teaching Hospital, Accra, Ghana
| | - Andrea Venema
- grid.7177.60000000084992262Department of Human Genetics, Genome Diagnostics Laboratory Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction and Development, Amsterdam, The Netherlands
| | - Ingrid M. Garrelds
- grid.5645.2000000040459992XDivision of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Amsterdam, The Netherlands
| | - A. H. Jan Danser
- grid.5645.2000000040459992XDivision of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Amsterdam, The Netherlands
| | - Bert-Jan van den Born
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Location AMC, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands ,grid.7177.60000000084992262Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Peter Henneman
- grid.7177.60000000084992262Department of Human Genetics, Genome Diagnostics Laboratory Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction and Development, Amsterdam, The Netherlands
| | - Charles Agyemang
- Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Location AMC, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands
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Galbete C, Nicolaou M, Meeks KA, de-Graft Aikins A, Addo J, Amoah SK, Smeeth L, Owusu-Dabo E, Klipstein-Grobusch K, Bahendeka S, Agyemang C, Mockenhaupt FP, Beune EJ, Stronks K, Schulze MB, Danquah I. Food consumption, nutrient intake, and dietary patterns in Ghanaian migrants in Europe and their compatriots in Ghana. Food Nutr Res 2017; 61:1341809. [PMID: 28747862 PMCID: PMC5510194 DOI: 10.1080/16546628.2017.1341809] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 06/06/2017] [Indexed: 11/04/2022] Open
Abstract
Background: West African immigrants in Europe are disproportionally affected by metabolic conditions compared to European host populations. Nutrition transition through urbanisation and migration may contribute to this observations, but remains to be characterised. Objective: We aimed to describe the dietary behaviour and its socio-demographic factors among Ghanaian migrants in Europe and their compatriots living different Ghanaian settings. Methods: The multi-centre, cross-sectional RODAM (Research on Obesity and Diabetes among African Migrants) study was conducted among Ghanaian adults in rural and urban Ghana, and Europe. Dietary patterns were identified by principal component analysis. Results: Contributions of macronutrient to the daily energy intake was different across the three study sites. Three dietary patterns were identified. Adherence to the ‘mixed’ pattern was associated with female sex, higher education, and European residency. The ‘rice, pasta, meat, and fish’ pattern was associated with male sex, younger age, higher education, and urban Ghanaian environment. Adherence to the ‘roots, tubers, and plantain’ pattern was mainly related to rural Ghanaian residency. Conclusion: We observed differences in food preferences across study sites: in rural Ghana, diet concentrated on starchy foods; in urban Ghana, nutrition was dominated by animal-based products; and in Europe, diet appeared to be highly diverse.
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Affiliation(s)
- Cecilia Galbete
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Mary Nicolaou
- Department of Public Health, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
| | - Karlijn A Meeks
- Department of Public Health, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
| | - Ama de-Graft Aikins
- Regional Institute for Population Studies, University of Ghana, Legon, Ghana
| | - Juliet Addo
- Department of Non-communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Stephen K Amoah
- Institute of Tropical Medicine and International Health, Charité - Universitaetsmedizin, Berlin, Germany
| | - Liam Smeeth
- Department of Non-communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Ellis Owusu-Dabo
- Faculty of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Kerstin Klipstein-Grobusch
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.,Division of Epidemiology and Biostatistics, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Silver Bahendeka
- International Diabetes Federation, Africa Region, Kampala, Uganda
| | - Charles Agyemang
- Department of Public Health, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
| | - Frank P Mockenhaupt
- Institute of Tropical Medicine and International Health, Charité - Universitaetsmedizin, Berlin, Germany
| | - Erik J Beune
- Department of Public Health, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
| | - Karien Stronks
- Department of Public Health, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Ina Danquah
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
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