Clin Neurophysiol:新型敏感的脑电图测量可用于用于阿尔茨海默病的功能连接

2020-08-03 MedSci原创 MedSci原创

在阿尔茨海默病(AD)的临床试验中,功能连接受损(FC)的改善可以为该药物的潜在疗效提供生物学支持。SAPHIR试验的脑电图(EEG)分析显示,治疗可改善总体相对theta功率,但不能通过相滞后指数(

在阿尔茨海默病(AD)的临床试验中,功能连接受损(FC)的改善可以为该药物的潜在疗效提供生物学支持。SAPHIR试验的脑电图(EEG)分析显示,治疗可改善总体相对theta功率,但不能通过相滞后指数(PLI)来测量FC。我们将PLI与带漏电校正(AEC-c)的振幅包络相关性进行了比较,这可能是一种更敏感的FC测量。

 

早期AD患者接受了12周的安慰剂或谷丙转氨酶抑制剂PQ912治疗。在基线和随访时测量闭眼的无任务EEG(PQ912 n = 47,安慰剂 n = 56)。在多个频段测量AEC-c和PLI。通过使用两个协变量模型比较治疗组之间FC的变化。

 

结果显示,与安慰剂相比,PQ912治疗在α频段的全局AEC-c显著增加(p = 0.004,Cohen's d = 0.58)。当校正性别、国家、ApoE ε4携带量、年龄、基线值(模型1;p = 0.006)和相对α功率的变化(模型2;p = 0.004)时,该效应仍然显著。

 

综上所述,该研究结果表明,在PQ912治疗后,使用AEC-c在α频段测量的早期AD的功能连接性得到改善。

 

原始出处:

 

C T BrielsC J Stam, et al., In pursuit of a sensitive EEG functional connectivity outcome measure for clinical trials in Alzheimer's disease. Clin Neurophysiol. 2020 Jan;131(1):88-95. doi: 10.1016/j.clinph.2019.09.014.

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