A genetic risk score for hypertension is associated with risk of thoracic aortic aneurysm

被引:2
作者
Tagetti, A. [1 ]
Bonafini, S. [1 ]
Ohlsson, T. [2 ]
Engstrom, G. [2 ]
Almgren, P. [2 ]
Minuz, P. [1 ]
Smith, G. [3 ,4 ]
Melander, O. [2 ]
Fava, C. [1 ,2 ]
机构
[1] Univ Verona, Dept Med, Sect Gen Med & Hypertens, Verona, Italy
[2] Lund Univ, Univ Hosp Malmo, Dept Clin Sci, Verona, Sweden
[3] Lund Univ, Dept Cardiol, Clin Sci, Lund, Sweden
[4] Skane Univ Hosp, Lund, Sweden
基金
欧洲研究理事会; 瑞典研究理事会; 英国医学研究理事会;
关键词
GENOME-WIDE ASSOCIATION; BLOOD-PRESSURE; VARIANTS;
D O I
10.1038/s41371-018-0159-6
中图分类号
R6 [外科学];
学科分类号
1002 ; 100210 ;
摘要
A genetic risk score (GRS) based on 29 single nucleotide polymorpysms (SNPs) associated with high blood pressure (BP) was prospectively associated with development of hypertension, stroke and cardiovascular events. The aim of the present study was to evaluate the impact of this GRS on the incidence of aortic disease, including aortic dissection (AD), rupture or surgery of a thoracic (TAA) or abdominal (AAA) aortic aneurysm. More than 25,000 people from the Swedish Malmo Diet and Cancer Study had information on at least 24 SNPs and were followed up for a median >= 18 years. The number of BP elevating alleles of each SNPs, weighted by their effect size in the discovery studies, was summed into a BP-GRS. In Cox regression models, adjusted for traditional cardiovascular risk factors including hypertension, we found significant associations of the BP-GRS, prospectively, with incident TAA (hazard ratio (HR) 1.64 (95% confidence interval (CI) 1.081-2.475 comparing the third vs. the first tertile; p = 0.020) but not with either AAA or aortic dissection. Calibration, discrimination and reclassification analyses show modest improvement in prediction using the BP-GRS in addition to the model which used only traditional risk factors. A GRS for hypertension associates with TAA suggesting a link between genetic determinants of BP and aortic disease. The effect size is small but the addition of more SNPs to the GRS might improve its discriminatory capability.
引用
收藏
页码:658 / 663
页数:6
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