在双相情感障碍中表观遗传衰老加速和粉样蛋白生物标志物之间的关联
Gabriel R Fries1,2,3, Steven De La Garza1, Ning O Zhao1
1Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, 1941 East Rd, Houston, Texas, USA.
medRxiv : the preprint server for health sciences
|April 29, 2025
概括
表观遗传衰老加速可能解释阿尔茨海默病在双相情感障碍中的风险变化. 这一发现表明表观遗传衰老可能是预防双相情感障碍患者痴呆症的目标.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 衰老研究研究 衰老研究
背景情况:
- 双极性障碍 (BD) 与阿尔茨海默氏症 (AD) 风险增加有关.
- 这种关联的潜在机制需要进一步研究.
研究的目的:
- 在双相情感障碍 (BD) 患者中评估阿尔茨海默病 (AD) 生物标志物.
- 确定表观遗传衰老 (EA) 加速是否有助于BD中的AD生物标志物变异性.
主要方法:
- 对59名BD患者和20名对照患者进行了横截面研究.
- 对血和死后大脑样本进行粉样β (Aβ) 和陶水平的分析.
- 使用GrimAge,DunedinPACE和DNAmClockCortical进行表观遗传衰老加速的估计.
主要成果:
- 与对照人群相比,患有BD的个体表现出改变的Aβ配置文件 (Aβ40增加,Aβ42 / 40比率下降).
- 加快表观遗传衰老与BD中的Aβ42/40比率降低相关.
- 在BD患者中观察到较高的大脑Aβ42水平,BD患者表现出加速表观遗传衰老.
结论:
- 表观遗传衰老加速呈现了一个潜在的机制,将BD和AD风险联系在一起.
- 针对表观遗传衰老可能为BD中痴呆症的预防提供一种新的策略.
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