当前位置: X-MOL 学术Brain Imaging Behav. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Endocytosis-pathway polygenic scores affects the hippocampal network connectivity and individualized identification across the high-risk of Alzheimer's disease.
Brain Imaging and Behavior ( IF 2.4 ) Pub Date : 2020-08-16 , DOI: 10.1007/s11682-020-00316-4
Yao Zhu 1 , Feifei Zang 1 , Xinyi Liu 1 , Dandan Fan 1 , Qianqian Zhang 1 , Qingguo Ren 1 , Chunming Xie 1 ,
Affiliation  

The neural mechanisms underlying the polygenic effects of the endocytosis pathway on the brain function of Alzheimer’s Disease (AD) remain unclear, especially in the prodromal stages of AD from early mild cognitive impairment (EMCI) to late mild cognitive impairment (LMCI). We used an imaging genetic approach to investigate the polygenic effects of the endocytosis pathway on the hippocampal network across the prodromal stages of AD. The subjects’ data were selected from the Alzheimer’s Disease Neuroimaging Initiative. Hippocampal volumes were examined in subjects of cognitive normal (CN), EMCI and LMCI groups. Multivariate linear regression analysis was employed to measure the effects of disease and endocytosis-based multilocus genetic risk scores (MGRS) on the hippocampal network which was constructed using the bilateral hippocampal regions. We identified hippocampal volumes in LMCI group were smaller than those in CN and EMCI groups. Endocytosis-based MGRS was widely influenced the neural structures within the hippocampal network, especially in the prefrontal-occipital regions and striatum. Compared to low endocytosis-based MGRS carriers, high MGRS carriers showed the opposite trajectory of hippocampal network functional connectivity (FC) across the prodromal stages of AD. Further, a model composed of selected hippocampal FCs and hippocampal volume yielded strong classification powers of EMCI and LMCI. These findings expand our understanding of the pathophysiology of polygenic effects underlying brain network in the prodromal stages of AD.



中文翻译:

内吞-通路多基因评分会影响高风险的阿尔茨海默氏病患者海马网络的连通性和个体化识别。

内吞作用途径对阿尔茨海默氏病(AD)的脑功能的多基因效应的潜在神经机制仍不清楚,特别是在AD的前驱阶段,从早期轻度认知障碍(EMCI)到晚期轻度认知障碍(LMCI)。我们使用了一种成像遗传学方法来研究内吞途径在AD前驱期对海马网络的多基因影响。受试者的数据选自阿尔茨海默氏病神经影像学计划。在认知正常(CN),EMCI和LMCI组的受试者中检查海马体积。采用多元线性回归分析来测量疾病和基于胞吞作用的多基因座遗传风险评分(MGRS)对使用双侧海马区构建的海马网络的影响。我们发现LMCI组的海马体积小于CN和EMCI组的海马体积。基于胞吞作用的MGRS广泛影响海马网络内的神经结构,尤其是在额叶前枕叶区域和纹状体中。与低内吞作用的MGRS携带者相比,高MGRS携带者在AD的前驱阶段显示出相反的海马网络功能连接(FC)轨迹。此外,由所选海马FC和海马体积组成的模型产生了强大的EMCI和LMCI分类能力。这些发现扩展了我们对AD前驱阶段脑网络潜在的多基因效应的病理生理学的认识。基于胞吞作用的MGRS广泛影响海马网络内的神经结构,尤其是在额叶前枕叶区域和纹状体中。与低内吞作用的MGRS携带者相比,高MGRS携带者在AD的前驱阶段显示出相反的海马网络功能连接(FC)轨迹。此外,由所选海马FC和海马体积组成的模型产生了强大的EMCI和LMCI分类能力。这些发现扩展了我们对AD前驱阶段脑网络潜在的多基因效应的病理生理学的认识。基于胞吞作用的MGRS广泛影响海马网络内的神经结构,尤其是在额叶前枕叶区域和纹状体中。与低内吞作用的MGRS携带者相比,高MGRS携带者在AD的前驱阶段显示出相反的海马网络功能连接(FC)轨迹。此外,由所选海马FC和海马体积组成的模型产生了强大的EMCI和LMCI分类能力。这些发现扩展了我们对AD前驱阶段脑网络潜在的多基因效应的病理生理学的认识。高MGRS携带者在AD的前驱阶段显示出相反的海马网络功能连接(FC)轨迹。此外,由选定的海马FC和海马体积组成的模型产生了强大的EMCI和LMCI分类能力。这些发现扩展了我们对AD前驱阶段脑网络潜在的多基因效应的病理生理学的认识。高MGRS携带者在AD的前驱阶段显示出相反的海马网络功能连接(FC)轨迹。此外,由所选海马FC和海马体积组成的模型产生了强大的EMCI和LMCI分类能力。这些发现扩展了我们对AD前驱阶段脑网络潜在的多基因效应的病理生理学的认识。

更新日期:2020-08-16
down
wechat
bug