Association of Chromosome 9p21 With Subsequent Coronary Heart Disease Events
- PMID: 30897348
- PMCID: PMC6625876
- DOI: 10.1161/CIRCGEN.119.002471
Association of Chromosome 9p21 With Subsequent Coronary Heart Disease Events
Abstract
Background: Genetic variation at chromosome 9p21 is a recognized risk factor for coronary heart disease (CHD). However, its effect on disease progression and subsequent events is unclear, raising questions about its value for stratification of residual risk.
Methods: A variant at chromosome 9p21 (rs1333049) was tested for association with subsequent events during follow-up in 103 357 Europeans with established CHD at baseline from the GENIUS-CHD (Genetics of Subsequent Coronary Heart Disease) Consortium (73.1% male, mean age 62.9 years). The primary outcome, subsequent CHD death or myocardial infarction (CHD death/myocardial infarction), occurred in 13 040 of the 93 115 participants with available outcome data. Effect estimates were compared with case/control risk obtained from the CARDIoGRAMplusC4D consortium (Coronary Artery Disease Genome-wide Replication and Meta-analysis [CARDIoGRAM] plus The Coronary Artery Disease [C4D] Genetics) including 47 222 CHD cases and 122 264 controls free of CHD.
Results: Meta-analyses revealed no significant association between chromosome 9p21 and the primary outcome of CHD death/myocardial infarction among those with established CHD at baseline (GENIUS-CHD odds ratio, 1.02; 95% CI, 0.99-1.05). This contrasted with a strong association in CARDIoGRAMPlusC4D odds ratio 1.20; 95% CI, 1.18-1.22; P for interaction <0.001 compared with the GENIUS-CHD estimate. Similarly, no clear associations were identified for additional subsequent outcomes, including all-cause death, although we found a modest positive association between chromosome 9p21 and subsequent revascularization (odds ratio, 1.07; 95% CI, 1.04-1.09).
Conclusions: In contrast to studies comparing individuals with CHD to disease-free controls, we found no clear association between genetic variation at chromosome 9p21 and risk of subsequent acute CHD events when all individuals had CHD at baseline. However, the association with subsequent revascularization may support the postulated mechanism of chromosome 9p21 for promoting atheroma development.
Keywords: chromosome; genetic; myocardial infarction; risk factor; secondary prevention; variation.
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References
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- Helgadottir A, et al. A common variant on chromosome 9p21 affects the risk of myocardial infarction. Science. 2007;316:1491–1493. doi: 10.1126/science.1142842. - PubMed
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- Palomaki GE, et al. Association between 9p21 genomic markers and heart disease: a meta-analysis. JAMA. 2010;303:648–656. doi: 10.1001/jama.2010.118. - PubMed
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Grants and funding
- PG/18/50/33837/BHF_/British Heart Foundation/United Kingdom
- PG/18/5033837/BHF_/British Heart Foundation/United Kingdom
- U01 GM074492/GM/NIGMS NIH HHS/United States
- DH_/Department of Health/United Kingdom
- 085475/B/08/Z/WT_/Wellcome Trust/United Kingdom
- P01 HL076491/HL/NHLBI NIH HHS/United States
- 084727/Z/08/Z/WT_/Wellcome Trust/United Kingdom
- MRC_/Medical Research Council/United Kingdom
- P50 HL077113/HL/NHLBI NIH HHS/United States
- RG/14/5/30893/BHF_/British Heart Foundation/United Kingdom
- 072960/Z/03/Z/WT_/Wellcome Trust/United Kingdom
- 085475/Z/08/Z/WT_/Wellcome Trust/United Kingdom
- R01 NR013396/NR/NINR NIH HHS/United States
- FS/14/76/30933/BHF_/British Heart Foundation/United Kingdom
- 084726/Z/08/Z/WT_/Wellcome Trust/United Kingdom
- FS/18/23/33512/BHF_/British Heart Foundation/United Kingdom
- PCL/17/07/CSO_/Chief Scientist Office/United Kingdom
- R01 HL074730/HL/NHLBI NIH HHS/United States
- CIHR/Canada
- R01 HL133169/HL/NHLBI NIH HHS/United States
