Research Division, Joslin Diabetes Center, Boston, MA
Department of Medicine, Harvard Medical School, Boston, MA
Diabetes. 2019 Mar;68(3):479-489. doi: 10.2337/dbi18-0036.
The past decade has witnessed an exponential increase in our ability to search the genome for genetic factors predisposing to cardiovascular disease (CVD) and in particular coronary heart disease (CHD). Identifying these genes could lead to the development of innovative strategies to prevent the cardiovascular complications of diabetes by allowing us to ) create predictive algorithms for the identification of patients at especially high risk of CVD so that these individuals can undergo preventive interventions early in the natural history of the disease; ) discover as yet unknown disease pathways linking diabetes to atherosclerosis, which can be used as targets for the development of new CVD-preventing drugs specifically directed at subjects with diabetes; and ) devise personalized programs increasing the cost-effectiveness of preventive interventions by tailoring them to the genetic background of each patient. Substantial progress has been made in each of these three areas as exemplified by the recent development of a CHD genetic risk score improving CHD prediction among subjects with type 2 diabetes, the discovery of a diabetes-specific CHD locus on 1q25 pointing to glutamine synthase () and the γ-glutamyl cycle as key regulators of CHD risk in diabetes, and the identification of two genetic loci allowing the selection of patients with type 2 diabetes who may especially benefit from intensive glycemic control. Translating these discoveries into clinical practice will not be without challenges, but the potential rewards, from the perspective of public health as well as that of persons with diabetes, make this goal worth pursuing.
在过去的十年中,我们在搜索基因组中导致心血管疾病(CVD)特别是冠心病(CHD)的遗传因素的能力上取得了指数级的增长。鉴定这些基因可能会导致开发创新策略来预防糖尿病的心血管并发症,使我们能够创建预测算法来识别 CVD 风险特别高的患者,以便这些个体可以在疾病的自然史早期接受预防性干预;发现将糖尿病与动脉粥样硬化联系起来的未知疾病途径,这些途径可作为开发专门针对糖尿病患者的新 CVD 预防药物的靶点;并制定个性化计划,通过针对每个患者的遗传背景来调整预防干预措施,从而提高其成本效益。在这三个领域都取得了实质性的进展,例如最近开发的 CHD 遗传风险评分提高了 2 型糖尿病患者的 CHD 预测,在 1q25 上发现了一个指向谷氨酰胺合成酶()和 γ-谷氨酰循环的糖尿病特异性 CHD 基因座,它们是糖尿病 CHD 风险的关键调节剂,以及鉴定了两个遗传基因座,允许选择可能特别受益于强化血糖控制的 2 型糖尿病患者。将这些发现转化为临床实践并非没有挑战,但从公共卫生和糖尿病患者的角度来看,潜在的回报使这一目标值得追求。