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Stroke & Vascular Neurology(SVN)最新上线文章“Associations of HDL-C/LDL-C with myocardial infarction, all-cause mortality, haemorrhagic stroke and ischaemic stroke: a longitudinal study based on 384093 participants from the UK Biobank”,来自暨南大学附属第一医院徐安定教授、吕军教授团队。
本研究旨在探讨高密度脂蛋白胆固醇(HDL-C)/低密度脂蛋白胆固醇(LDL-C)与心肌梗死(MI)、全因死亡率、出血性卒中和缺血性卒中的相关性,以及遗传易感性和HDL-C/LDL-C与心肌梗死风险的联合关联。
研究基于英国生物样本数据库(UK Biobank, UKB)的384093例参与者,平均随访时间超过10年。首先,限制性立方样条(restricted cubic splines, RCS)显示HDL-C/LDL-C与心肌梗死、缺血性卒中和全因死亡率之间存在非线性关联。其次,Cox比例风险回归模型表明,在完全多变量校正后,与HDL-C/LDL-C=0.4-0.6相比,HDL-C/LDL-C<0.4和>0.6与参与者全因死亡率相关(HR=0.97 for HDL-C/LDL-C<0.4, 95%CI 0.939 to 0.999, p<0.05; HR=1.21 for HDL-C/LDL-C>0.6, 95%CI 1.16 to 1.26, p<0.001);HDL-C/LDL-C<0.4与参与者较高的心肌梗死风险(HR=1.36, 95%CI 1.28 to 1.44, p<0.05)和缺血性卒中风险(HR=1.12, 95%CI 1.02 to 1.22, p<0.05)相关;HDL-C/LDL-C>0.6与参与者较高的出血性卒中风险相关(HR=1.25, 95%CI 1.03 to 1.52, p<0.05)。最后,在计算每个参与者冠心病遗传风险评分(coronary heart disease Genetic Risk Score, CHD-GRS)后,Cox比例风险回归模型表明,与同时具有低CHD-GRS和HDL-C/LDL-C=0.4-0.6的组相比,具有高CHD-GRS和HDL-C/LDL-C<0.4的组与最高的心肌梗死风险相关(HR=2.45, 95%CI 2.15 to 2.8, p<0.001)。此外,无论参与者是否处于高、中或低CHD-GRS,HDL-C/LDL-C<0.4都与参与者较高的心肌梗死风险相关。
Figure 1. Restricted cubic splines (RCS) for analysis of relationships between HDL-C (A), LDL-C (B), HDL-C/LDL-C (C) and different adverse events. (C) was adjusted for age, TDI, gender, race, smoking history, education level, alcohol use, BMI, BG, SBP, DBP and TG; (B) was adjusted for C+HDL C; a was adjusted for C+LDL. BG, blood glucose; DBP, diastolic blood pressure; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; MI, myocardial infarction; SBP, systolic blood pressure; TDI, Townsend Deprivation Index; TG, triglycerides.
Figure 2. HRs estimation for all-cause mortality (A), MI (B), ischaemic stroke (C) and haemorrhagic stroke (D) among different HDL-C/LDL-C groups by Cox proportional risk model. *Variables used for adjustment included TDI, age, gender, race, smoking history, alcohol use, education level, BMI, BG, SBP, DBP and TG. BG, blood glucose; BMI, body mass index; DBP, diastolic blood pressure; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; MI, myocardial infarction; MV, multivariable; SBP, systolic blood pressure; TDI, Townsend Deprivation Index; TG, triglycerides.
Figure 3. Joint correlation between CHD-GRS and HDL-C/LDL-C for myocardial infarction risk analysed using Cox proportional risk model. The multivariable model was adjusted for TDI, age, gender, race, smoking history, alcohol use, education level, BMI, BG, SBP, DBP and TG. BG, blood glucose; BMI, body mass index; CHD-GRS, coronary heart disease Genetic Risk Score; DBP, diastolic blood pressure; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; MI, myocardial infarction; SBP, systolic blood pressure; TDI, Townsend Deprivation Index; TG, triglycerides.
研究结论:在UKB参与者中,HDL-C/LDL-C比率为0.4-0.6与较低的心肌梗死、全因死亡率、出血性卒中和缺血性卒中风险相关。无论参与者是否处于高、中或低CHD-GRS,HDL-C/LDL-C<0.4均与参与者较高的心肌梗死风险相关。HDL-C/LDL-C的临床意义和影响尚需在未来研究中进一步验证。
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