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JAMA Neurol:成年后心血管风险与老年脑病理学变化

2019-11-05 MedSci MedSci原创

研究认为,较高的血管风险与老年较小的全脑体积和更大的白质-超强度体积相关,最强烈的关联见于成年早期(36岁左右),但血管风险对淀粉样沉积无显著影响

研究已证实中年血管性风险负担与晚期痴呆有关。近日研究人员通过白质高强度容积、β-淀粉样蛋白负荷、全脑和海马体积的测量,确定成年早期、中年和晚年的血管风险与晚年大脑结构和病理学之间的关系。

Insight 46研究为前瞻性的纵向队列研究,参与者在36岁(成年早期)、53岁(中年)和69岁(晚年早期)进行血管危险因素评估。参与者接受多模式磁共振成像和Florbetapir-淀粉样正电子发射断层扫描评估。心血管风险评分(FHS-CVS)是在36岁、53岁和69岁时根据收缩压、降压药物使用、吸烟、糖尿病状态和体重指数得出的。

463名参与者(男性236人[51.0%]),成像时的平均年龄为70.7岁,83例β-淀粉样蛋白阳性者(18.2%)符合资格标准。FHS-CVS高风险比例随年龄增长而增加(36岁为2.7%;53岁为10.9%;69岁为24.3%)。FHS-CVS分数增加与较小的全脑体积 (36岁:β系数增加每1%,全脑体积?3.6;53岁:?0.8;69岁:?0.6)和高白质强度体积增加相关(36岁,1.09;53岁,1.02;69岁:1.01),36岁时影响最大。FHS-CVS结果与β-淀粉样蛋白状态无关.

研究认为,较高的血管风险与老年较小的全脑体积和更大的白质-超强度体积相关,最强烈的关联见于成年早期(36岁左右),但血管风险对淀粉样沉积无显著影响。

原始出处:


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    2020-02-15 showtest
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    2020-02-26 yinhl1978
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    2019-11-07 jktdtl
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    2019-11-05 qingfengqishi5

    学习了,学习了

    0

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