Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
Stroke. 2013 Jul;44(7):1803-8. doi: 10.1161/STROKEAHA.113.001128. Epub 2013 May 9.
Cerebrovascular and cardiovascular disease share common risk factors. Our goal was to determine whether levels of N-terminal brain natriuretic peptide (NT-proBNP) and cardiac troponin T measured with a highly sensitive assay (hs-cTnT) are associated with silent brain infarcts (BIs) and white matter lesions (WMLs) on MRI in the Atherosclerosis Risk in Communities (ARIC) study.
At ARIC visit 3 (1993-1995), 1920 participants had brain MRI. NT-proBNP and hs-cTnT were measured in all individuals at ARIC visit 4 (1996-1998). Of 1920 individuals, 1112 had a follow-up MRI [2004-2006]). We analyzed the association of NT-proBNP and hs-cTnT with MRI-defined BI and WML on the initial MRI and incident BI and WML progression on the follow-up MRI in participants without heart failure, coronary heart disease, or stroke.
In the adjusted model, individuals in the highest NT-proBNP quartile had significantly more BI (odds ratio, 3.50; 95% confidence interval, 2.03-6.20), and WML (β-coefficient, 0.09; SE, 0.03) on the baseline MRI and more incident BI (odds ratio, 2.18; 95% confidence interval, 1.38-3.47) and WML progression (β-coefficient, 0.22; SE, 0.10) on the follow-up MRI. Individuals in the highest hs-cTnT category had more BI (odds ratio, 3.03; 95% confidence interval, 1.57-5.82) and WML (β-coefficient, 0.11; SE, 0.04) on the initial MRI and more WML progression (β-coefficient, 0.43; SE, 0.17) on the follow-up MRI.
NT-proBNP and hs-cTnT are independently associated with silent MRI-defined BI and WML, suggesting that cardiovascular biomarkers may be useful to identify individuals with subclinical cerebral injury.
脑血管病和心血管病有共同的危险因素。我们的目的是确定用高敏检测法(hs-cTnT)检测到的 N 末端脑利钠肽(NT-proBNP)和心脏肌钙蛋白 T 水平是否与 ARIC 研究中 MRI 显示的无症状性脑梗死(BI)和脑白质病变(WML)有关。
在 ARIC 研究的第 3 次访视(1993-1995 年)时,1920 名参与者进行了脑部 MRI 检查。所有参与者在第 4 次访视(1996-1998 年)时都检测了 NT-proBNP 和 hs-cTnT。在 1920 名参与者中,有 1112 名进行了随访 MRI(2004-2006 年)。我们分析了在没有心力衰竭、冠心病或卒中的参与者中,NT-proBNP 和 hs-cTnT 与初始 MRI 定义的 BI 和 WML 及随访 MRI 中 BI 和 WML 进展的相关性。
在调整后的模型中,NT-proBNP 四分位最高的个体在基线 MRI 上的 BI 更多(优势比,3.50;95%置信区间,2.03-6.20),WML 更多(β 系数,0.09;SE,0.03),随访 MRI 上 BI 新发事件更多(优势比,2.18;95%置信区间,1.38-3.47),WML 进展更多(β 系数,0.22;SE,0.10)。hs-cTnT 最高类别的个体在初始 MRI 上 BI 更多(优势比,3.03;95%置信区间,1.57-5.82),WML 更多(β 系数,0.11;SE,0.04),随访 MRI 上 WML 进展更多(β 系数,0.43;SE,0.17)。
NT-proBNP 和 hs-cTnT 与无症状性 MRI 定义的 BI 和 WML 独立相关,提示心血管生物标志物可用于识别有亚临床脑损伤的个体。