根据等离子体生物标志物预测轻度认知障碍患者的纵向认知衰退和阿尔茨海默病转化
Min-Koo Park1,2, Jinhyun Ahn3, Young-Ju Kim4
1Department of Biological Sciences, College of Natural Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea.
Cells
|July 12, 2024
概括
血神经纤维光链 (NFL) 和质纤维酸蛋白 (GFAP) 在预测轻度认知障碍 (MCI) 患者的认知衰退和阿尔茨海默病 (AD) 转化方面表现有前途. 这些生物标志物可能有助于早期发现AD和治疗策略.
科学领域:
- 生物标志物和诊断方法
- 神经退行性疾病 神经退行性疾病
- 阿尔茨海默氏症疾病研究研究
背景情况:
- 阿尔茨海默病 (AD) 构成了全球重大健康挑战,需要改进诊断和治疗方法.
- 目前对阿尔茨海默病的治疗主要向粉样β (Aβ) 斑块,但疾病修饰疗法仍在开发中.
- 早期识别患有AD转化高风险的轻度认知障碍 (MCI) 患者对于及时干预至关重要,特别是在新兴的抗Aβ疗法中.
研究的目的:
- 评估血蛋白生物标志物对非痴呆症患者认知衰退的预测能力.
- 评估血生物标志物在预测轻度认知障碍 (MCI) 患者转化为阿尔茨海默病 (AD) 的潜力.
- 调查基线血生物标志物与纵向认知变化和MCI到AD进展的关联.
主要方法:
- 使用了一个前性,基于社区的队列研究 (韩国认知衰老和痴呆的纵向研究 - KLOSCAD).
- 六种蛋白质 (tTau,pTau181,Aβ42,Aβ40,NFL,GFAP) 的基线血度和三个比率在MCI,MCI-to-AD和认知正常 (CU) 参与者中被分析.
- 线性混合模型 (LMM) 预测了纵向认知变化,而Kaplan-Meier分析评估了MCI-AD转换预测.
主要成果:
- 血神经纤维光链 (NFL) 预测了迷你精神状态检查 (MMSE) 成绩的纵向下降.
- 在粉样蛋白阳性参与者中,NFL预测了MMSE和韩国联盟建立阿尔茨海默病评估包 (CERAD-TS) 注册表的纵向得分.
- 卡普兰-梅尔分析显示,NFL,GFAP,tTau和Aβ42/Aβ40预测了MCI到AD的转化.
结论:
- 血NFL可能成为纵向认知衰退的预测因素,特别是在粉样蛋白阳性个体中.
- 血GFAP可能反映非痴呆参与者的横截面认知功能 (CERAD-TS分数).
- NFL,GFAP,tTau和Aβ42 / Aβ40比率显示出潜在的强大预测器,可以预测未来的阿尔茨海默氏症从MCI转化为阿尔茨海默氏症.
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