JAHA:中青年代谢健康和肥胖与脑衰老之间的关系

2022-03-03 MedSci原创 MedSci原创

在这项针对中青年的横断面队列研究中,代谢健康不佳和肥胖与大脑衰老的结构和功能相关。代谢健康和肥胖的改善可能为改善大脑长期健康功能提供了机会。

近日,心血管疾病领域权威杂志JAHA上发表了一篇研究文章,研究人员旨在评估通过磁共振成像和神经认知测试在社区居住的成年人中测量的代谢健康与肥胖和大脑健康之间的关联。

研究人员采用弗雷明汉心脏研究第三代队列成员(n=2170,46±9岁,54%女性),他们没有糖尿病卒中、痴呆或其他神经系统疾病,按代谢不健康(代谢综合征≥2条标准)和肥胖分组(体重指数≥30kg/m2):代谢健康非肥胖、代谢健康肥胖、代谢不健康非肥胖和代谢不健康肥胖。

研究人员评估了这些组与大脑结构(磁共振成像)和功能(神经认知测试)之间的关系。在多变量调整分析中,与代谢健康非肥胖参照组相比,代谢不健康个体(代谢不健康非肥胖和代谢不健康肥胖)的总脑容量较低(所有P<0.05)。此外,代谢不健康肥胖组的白质高信号体积更大(P=0.004),而白质高信号体积与代谢健康或单独肥胖组之间没有关联。

肥胖个体的认知得分较低:代谢健康肥胖在整体认知、逻辑记忆延迟回忆和相似性测试中得分较低,代谢不健康肥胖在相似性和视觉再现延迟测试中得分较低(所有P≤0.04)。代谢不健康和肥胖组在几个大脑区域具有较高的游离水含量和较低的分数各向异性,这与白质完整性的缺失相一致。

由此可见,在这项针对中青年的横断面队列研究中,代谢健康不佳和肥胖与大脑衰老的结构和功能相关。代谢健康和肥胖的改善可能为改善大脑长期健康功能提供了机会。

原始出处:

Rebecca Angoff.et al.Relations of Metabolic Health and Obesity to Brain Aging in Young to Middle‐Aged Adults.JAHA.2022.https://www.ahajournals.org/doi/full/10.1161/JAHA.121.022107

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    2022-03-03 1473a02dm49暂无昵称

    0

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    2022-03-03 仁者大医
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    2022-03-03 xuyu

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