人脐带间充质干细胞联合莱菔硫烷对阿尔茨海默病转基因小鼠治疗作用的初步研究

目的:探索人源性脐带间充质干细胞(hUC-MSCs)或莱菔硫烷(sulforaphane,SFN)单独或联合应用对阿尔茨海默病(Alzheimer’s disease,AD)转基因小鼠脑内生物标志物的影响,并为AD治疗策略或进一步研究提供依据。方法:将24只8周龄雄性APP/PS1转基因小鼠随机分为4组,分别接受PBS、SFN、hUC-MSCs单用或与SFN联合治疗。药物腹腔内注射、间充质干经细胞脑室注入,14天后处死小鼠,取大脑进行免疫荧光染色和蛋白质印迹分析。结果:hUC-MSCs和SFN单独或联合使用均能降低大脑皮层Aβ和Tau蛋白水平,联合使用效果更显著。结论:本研究动物实验初步结果见AD主要两个生物标志物Aβ和Tau蛋白下调,提示hUC-MSCs与SFN联合应用可能有效治疗早期AD,这表明SFN和hUCMSCs的联合治疗可能是治疗AD的一种新颖、有效的策略,需要进一步研究。

A Comprehensive Overview of Cyber-Physical Systems: From Perspective of Feedback System

Cyber-physical systems (CPS) are characterized by integrating cybernetic and physical processes. The theories and applications of CPS face the enormous challenges. The aim of this paper is to provide a latest understanding of this emerging multi-disciplinary methodology. First, the features of CPS are described, and the research progresses are summarized from different components in CPS, such as system modeling, information acquisition, communication, control and security. Each part is also followed by the future directions. Then some typical applications are given to show the prospects of CPS. © 2014 Chinese Association of Automation.