Stroke:胆碱能通路和神经网络受损可能导致血管性痴呆

2015-10-12 MedSci MedSci原创

背景:神经网络在卒中后痴呆的的作用尚不清楚。研究人员提出假说:卒中所致皮层下胆碱能通路或大型神经网络受损引起卒中后痴呆。方法:在急性缺血性卒中患者中进行一项配对病例对照研究。卒中后3个月,应用韩国血管性认知障碍的统一标准评估患者是否发生痴呆,新近发生的痴呆患者为病例组。按照年龄,教育程度以及卒中的严重程度对痴呆患者进行配对,一个痴呆患者对应两个对照组患者。应用胆碱能通路高信号评分评估患者是否因急性

背景:神经网络在卒中后痴呆的的作用尚不清楚。研究人员提出假说:卒中所致皮层下胆碱能通路或大型神经网络受损引起卒中后痴呆。

方法:在急性缺血性卒中患者中进行一项配对病例对照研究。卒中后3个月,应用韩国血管性认知障碍的统一标准评估患者是否发生痴呆,新近发生的痴呆患者为病例组。按照年龄,教育程度以及卒中的严重程度对痴呆患者进行配对,一个痴呆患者对应两个对照组患者。应用胆碱能通路高信号评分评估患者是否因急性卒中引起胆碱能通路受损。调查默认网络,中央执行网络,凸显网络等神经网络的皮质位置。

结果:配对后,共有病例组38名患者,对照组66名患者。与对照组相比,病例组患者胆碱能高信号评分分数显著升高。与对照组相比,病例组患者急性缺血性后损伤默认网络和中央执行网络更常见。校正潜在的混杂因素后,应用多元logistic回归分析显示这些结果仍有差异。缺血部位分析揭示病例组更可能在左放射冠,海马以及后顶叶皮层受到损伤。

结论:胆碱能通路和神经网络重要位置受损可能是急性缺血性卒中后痴呆的原因。

原文出处:

Muir RT, Lam B, Honjo K, et al. Trail Making Test Elucidates Neural Substrates of Specific Poststroke Executive Dysfunctions. Stroke. 2015 Sep 17.


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    2015-10-14 grace5704
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    2015-10-13 vpssa

    太过专业啦

    0