机器学习根据人口肠道微生物群的特征来确定阿尔茨海默病的发病率
Amedra Basgaran1, Eva Lymberopoulos2, Ella Burchill3
1Department of Clinical and Movement Neurosciences, Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK.
Brain communications
|April 16, 2025
概括
肠道微生物群的差异,包括较低的多样性,可以预测各国之间的阿尔茨海默病发病率. 特定的细菌,如大肠杆菌 (Escherichia coli),血友菌 (Haemophilus) 和阿克尔曼西亚 (Akkermansia) 显示出具有保护性的潜力. 机器学习模型在这些预测中实现了高准确性.
科学领域:
- 微生物学 微生物学
- 神经科学是一个神经科学.
- 计算生物学 计算生物学
背景情况:
- 人类微生物群,特别是肠道微生物群,在宿主健康中发挥作用,并与神经退行性疾病有关.
- 肠道微生物组的改变被假设会影响大脑的微质细胞,可能有助于阿尔茨海默病的发病.
- 肠道微生物组合的种群水平变化可能与全球不同的阿尔茨海默病发病率有关.
研究的目的:
- 调查人口层面的肠道微生物群差异是否可以预测阿尔茨海默病发病率.
- 识别与不同国家的高或低阿尔茨海默病发病率相关的特定微生物种群.
- 应用机器学习来评估微生物组资料对阿尔茨海默病率的预测能力.
主要方法:
- 对两个大型,开放式的人类微生物组数据集 (n=959和n=2012) 的横截面分析.
- 根据阿尔茨海默病发病率对国家进行分组,并比较肠道微生物群的多样性和个人资料.
- 使用对方差和机器学习 (预测建模) 的顺序分析.
主要成果:
- 高阿尔茨海默病发病率的国家表现出明显较低的肠道微生物群多样性 (P < 0.05).
- 在高和低阿尔茨海默病发病率国家之间观察到微生物组概况的显著差异 (PERMANOVA,P < 0.05).
- 埃舍里希亚大肠杆菌 (物种),海莫菲勒斯和阿克克曼西亚 (属) 被确定为可重复保护的种群. 机器学习模型以高准确度预测了阿尔茨海默病的发生率 (AUC 0.889和0.927).
结论:
- 肠道微生物组的组成和多样性与阿尔茨海默病发病率在人口层面的变化有关.
- 特定的微生物物种和属显示出作为抗阿尔茨海默病保护因素的潜力.
- 肠道微生物组是人口层面的神经退行的一个重要因素,具有对阿尔茨海默病的预测能力.
更多相关视频
11:22Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
27.6K
09:38Generalized Psychophysiological Interaction PPI Analysis of Memory Related Connectivity in Individuals at Genetic Risk for Alzheimer's Disease
Published on: November 14, 2017
14.8K
相关概念视频
Alzheimer's Disease: Overview
328
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
328
Anatomy of the Intestines
70.6K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
70.6K
