Genomics in coronary artery disease and beyond: communicating risk in the space between health and disease.

Hughes, Jack · Postgrad Med J · 2026

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Abstract

Advances in genomic and epigenetic research are reshaping how disease risk is identified and understood. The recent Mendelian randomization study by Zhang et al. investigating links between circadian rhythm-related genes and coronary artery disease highlights how multi-omic approaches can identify plausible pathways linking molecular regulation to clinical pathology. At the same time, our ever-growing understanding of risk markers raises broader questions about how such variables are translated into clinical practice. Genetic or epigenetic indicators of risk may carry psychological and social implications for patients, particularly when their significance remains uncertain. As precision medicine advances, we must become comfortable with the communication of uncertainty and ensure that we remain attuned to the lived experience of the patients we treat.