在认知正常的老年人中,创伤后应激障碍症状与粉样蛋白负担的关联
Lei Zhang1, Yi-Miao Gong2,3, San-Wang Wang2,4
1Department of Nutrition,Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China.
Frontiers in aging neuroscience
|December 18, 2024
概括
创伤后应激障碍 (PTSD) 与较高的大脑粉样β (Aβ) 水平有关,这是阿尔茨海默病病理学的关键标志物. 这种关联不管年龄,性别或遗传因素如何,都适用,这表明存在显著的联系.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 阿尔茨海默氏症疾病研究研究
背景情况:
- 创伤后应激障碍 (PTSD) 被认为是痴呆症的危险因素.
- 创伤后应激障碍和临床前阿尔茨海默氏症病理学之间的具体关系,特别是粉样β (Aβ) 负担,仍然不完全理解和辩论.
- 之前还没有确定PTSD症状严重程度与Aβ水平之间的相关性.
研究的目的:
- 调查创伤后应激障碍症状与全球和区域大脑粉样β (Aβ) 负担之间的关联.
- 在一个大群体中探索PTSD症状的严重程度与Aβ水平之间的关系.
主要方法:
- 使用无症状阿尔茨海默氏症抗粉样蛋白治疗 (A4) 研究数据的横截面研究.
- 分析包括4,228名65-85岁的参与者.
- 统计模型根据相关的共变量进行调整,以评估PTSD症状与Aβ负担之间的关联.
主要成果:
- 创伤后应激障碍症状与更高的全球Aβ水平 (β = 0.056,p < 0.001) 有显著关联.
- 这种关联在所有经过检查的大脑子区域中都是一致的,包括前带带状,后带状,表皮质,前状,皮质和前皮质.
- 与中度,轻度或没有PTSD症状的人相比,患有严重PTSD症状的个体的全球Aβ水平显着更高 (p < 0.001).
结论:
- 创伤后应激障碍症状与大脑粉样蛋白-β (Aβ) 水平的增加之间存在显著的关系.
- 这种关联独立于诸如性别,年龄,APOE基因型以及其他精神疾病的存在等因素.
- 需要进一步的研究来阐明连接PTSD和Aβ病理的潜在机制.
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