Relationship between genomic risk scores (GRS) and coronary artery calcium (CAC) score: A pilot study

Published:November 26, 2021DOI:https://doi.org/10.1016/j.clnesp.2021.11.029

      Summary

      Background

      Coronary artery disease (CAD) genomic risk scores (GRS), as FDR202, GRS46K, 1.7M, and MetaGRS, help in assessing cardiovascular related morbidity and mortality. Interventions to adhere to a healthy lifestyle as a means of prevention based on the GRS have a potential to greatly reduce incident CAD event rates. We performed a prospective observational study to see the relationship between GRS and coronary artery calcium (CAC) scoring in individuals who are at risk.

      Methods

      104 subjects with mean age 55.1 ± 8.8 years were enrolled and consented and all the participants underwent CAC scoring. 55 (53%) were male. CAC score was measured using the Agatston method. Spearman correlation analysis assessed relationships between GRS scores and CAC scores, in the entire sample and in subjects with CAC score greater than zero. Multivariable linear regression analyzed associations while adjusting potential confounding variables.

      Results

      Mean ± SD CAC score of the study population was 49.0 ± 130. A significant negative correlation was noted between FDR202 Prevalence and total CAC Score in 39 subjects with CAC >0, r = −0.35, p = 0.02. Multivariable analysis shows a significant association between FDR202 prevalence and log adjusted CAC score in subjects with CAC >0 while adjusting age, gender, hypertension and hyperlipidemia (β = −0.2, SE = 0.1, p = 0.04). No significant correlations were found between GRS46K, 1.7M, and MetaGRS with CAC score.

      Conclusion

      Additional research is necessary in a larger population to evaluate the potential role of GRS for the detection of CAD. This allows the individuals to adopt a healthy lifestyle modification to minimize the cardiovascular risk and delays the onset of most diseases of old age to prolong the life.

      Keywords

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