与临床前阿尔茨海默氏症相关的病理和认知变化相关的翻译后修改
Olamide Abiose1,2, Jarod Rutledge3,4, Patricia Moran-Losada1,2,3
1Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Palo Alto, California, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2023
概括
蛋白质组分析揭示了与老年人阿尔茨海默病风险相关的蛋白质网络. 这些发现强调了蛋白质修饰在早期认知和病理变化中的作用.
科学领域:
- 神经科学是一个神经科学.
- 蛋白质组学是指蛋白质组学.
- 生物化学 生物化学
背景情况:
- 阿尔茨海默病 (AD) 构成了重大挑战,早期发现和了解风险因素至关重要.
- 在临床无障碍 (CU) 个体中识别AD风险的分子机制可以为预防策略提供信息.
研究的目的:
- 为了确定与阿尔茨海默病 (AD) 风险相关的蛋白质社区,在临床无损的 (CU) 老年人中.
- 探索蛋白共同表达模块与早期AD病理和认知功能之间的关系.
主要方法:
- 使用3869个脑脊液 (CSF) 蛋白质构建了一个蛋白质共同表达网络.
- 使用 SomaLogic 技术在跨越 AD 临床谱的队列中量化蛋白质.
- 在一个独立的CU老年人队列中复制了网络,并与临床结果相关联的模块.
主要成果:
- 发现了富含酸化和无处不在化的蛋白质模块.
- 这些模块与异常的粉样蛋白状况和升高的p-tau181水平显著相关.
- 模块还与CU老年人的执行职能表现相关联.
结论:
- 翻译后的修改,如酸化和无处不在,在早期阿尔茨海默氏症 (AD) 进展中至关重要.
- 大脑脊髓液 (CSF) 蛋白质组数据为AD风险的分子基础提供了洞察力.
- 这项研究强调了蛋白质网络在理解与AD相关的早期病理和认知变化的重要性.
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