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Induced neural stem cells regulate microglial activation through Akt-mediated upregulation of CXCR4 and Crry in a mouse model of closed head injury

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Neural Regeneration Research 2025年第5期20卷 1416-1430页

作者： Mou Gao Qin dong Dan Zou Zhijun Yang Lili Guo Ruxiang xu Department of Neurosurgery Sichuan Academy of Medical Sciences and Sichuan Provincial People’s HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengduSichuan ProvinceChina Department of Neurosurgery Chinese PLA General HospitalBeijingChina Department of Neurology Fu Xing HospitalCapital Medical UniversityBeijingChina

Microglial activation that occurs rapidly after closed head injury may play important and complex roles in neuroinflammation-associated neuronal damage and *** previously reported that induced neural stem cells can modulate the behavior of activated microglia via CXCL12/CXCR4 signaling,influencing their activation such that they can promote neurological ***,the mechanism of CXCR4 upregulation in induced neural stem cells remains *** this study,we found that nuclear factor-κB activation induced by closed head injury mouse serum in microglia promoted CXCL12 and tumor necrosis factor-αexpression but suppressed insulin-like growth factor-1 ***,recombinant complement receptor 2-conjugated Crry(CR2-Crry)reduced the effects of closed head injury mouse serum-induced nuclear factor-κB activation in microglia and the levels of activated microglia,CXCL12,and tumor necrosis factor-α.Additionally,we observed that,in response to stimulation(including stimulation by CXCL12 secreted by activated microglia),CXCR4 and Crry levels can be upregulated in induced neural stem cells via the interplay among CXCL12/CXCR4,Crry,and Akt signaling to modulate microglial *** agreement with these in vitro experimental results,we found that Akt activation enhanced the immunoregulatory effects of induced neural stem cell grafts on microglial activation,leading to the promotion of neurological recovery via insulin-like growth factor-1 secretion and the neuroprotective effects of induced neural stem cell grafts through CXCR4 and Crry upregulation in the injured cortices of closed head injury ***,these beneficial effects of Akt activation in induced neural stem cells were positively correlated with the therapeutic effects of induced neural stem cells on neuronal injury,cerebral edema,and neurological disorders post–closed head *** conclusion,our findings reveal that Akt activation may enhance the immunoregulatory effects of induced neura

关键词： Akt signaling cerebral edema closed head injury Crry CXCR4 induced neural stem cell microglia neuroinflammation

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Aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders:progress of experimental models based on disease pathogenesis

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Neural Regeneration Research 2025年第2期20卷 354-365页

作者： Li xu Huiming xu Changyong Tang Department of Neurology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Neuromyelitis optica spectrum disorders are neuroinflammatory demyelinating disorders that lead to permanent visual loss and motor *** date,no effective treatment exists as the exact causative mechanism remains ***,experimental models of neuromyelitis optica spectrum disorders are essential for exploring its pathogenesis and in screening for therapeutic *** most patients with neuromyelitis optica spectrum disorders are seropositive for IgG autoantibodies against aquaporin-4,which is highly expressed on the membrane of astrocyte endfeet,most current experimental models are based on aquaporin-4-IgG that initially targets *** experimental models have successfully simulated many pathological features of neuromyelitis optica spectrum disorders,such as aquaporin-4 loss,astrocytopathy,granulocyte and macrophage infiltration,complement activation,demyelination,and neuronal loss;however,they do not fully capture the pathological process of human neuromyelitis optica spectrum *** this review,we summarize the currently known pathogenic mechanisms and the development of associated experimental models in vitro,ex vivo,and in vivo for neuromyelitis optica spectrum disorders,suggest potential pathogenic mechanisms for further investigation,and provide guidance on experimental model *** addition,this review summarizes the latest information on pathologies and therapies for neuromyelitis optica spectrum disorders based on experimental models of aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders,offering further therapeutic targets and a theoretical basis for clinical trials.

关键词： aquaporin-4 experimental model neuromyelitis optica spectrum disorder pathogenesis

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Reducing the measurement errors in nonadiabatic holonomic quantum computers

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 64-70页

作者： Guo-Fu xu Department of Physics Shandong University

Nonadiabatic holonomic quantum computers serve as the physical platform for nonadiabatic holonomic quantum *** quantum computation has entered the noisy intermediate-scale era, building accurate intermediate-scale nonadiabatic holonomic quantum computers is clearly necessary. Given that measurements are the sole means of extracting information, they play an indispensable role in nonadiabatic holonomic quantum computers. Accordingly, developing methods to reduce measurement errors in nonadiabatic holonomic quantum computers is of great importance. However, while much attention has been given to the research on nonadiabatic holonomic gates, the research on reducing measurement errors in nonadiabatic holonomic quantum computers is severely lacking. In this study, we propose a measurement error reduction method tailored for intermediate-scale nonadiabatic holonomic quantum computers. The reason we say this is because our method can not only reduce the measurement errors in the computer but also be useful in mitigating errors originating from nonadiabatic holonomic gates. Given these features,our method significantly advances the construction of accurate intermediate-scale nonadiabatic holonomic quantum computers.

关键词： quantum holonomy quantum computation measurement errors

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The effect of different methods of hypoglycemic on the process of early diabetic nephropathy

The effect of different methods of hypoglycemic on the proce...

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中华医学会糖尿病学分会第十六次全国学术会议

作者： HE Hai-dong xu xu-dong YU Chen Department of Nephrology Minhang District Central Hospital

Objective To compare the efficacy of different methods of hypoglycemic on the process in the early stage of diabetic nephropathy,evaluate the preventive and therapeutic effect of insulin therapy on disease progression. Methods One hundred and twenty-eight patients with diabetic nephropathy whose glomerular filtration

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Chylous Ascites and Chylothorax Caused by Constrictive Pericarditis

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Chinese Medical Journal 2017年第20期130卷 2508-2509页

作者： Guo-Can Yu xu-dong xu Fang-Ming Zhong Gang Chen Da Chen Department of Thoracic Surgery Zhejiang Traditional Chinese Medicine and Western Medicine Integrated Hospital Hangzhou Zhejiang 310003 China

Chylous ascites and chylopleura due to constrictive pericarditis are rare and characterized by white milky ascites and pleural fluid. presence of chylomicrons Diagnosis is established by the However, the treatment of this situation is very difficult. We report a case ofchylous ascites and chylotborax, in which hydrops was attributable to constrictive pericarditis. In the present case, pericardiectomy combined with thoracic duct ligation and pleurodesis cured chylous ascites and cbylothorax caused by constrictive pericarditis, which has never been previously described.

关键词： Ascites Chylothorax Clinical Experience Constrictive Pericarditis

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偏斜淫羊藿的化学成分研究

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中国药学杂志 2005年第3期40卷 175-178页

作者：许旭东杨峻山中国医学科学院中国协和医科大学药用植物研究所北京100094

目的研究偏斜淫羊藿(Epimediumtruncatum)的化学成分。方法偏斜淫羊藿地上部分95%乙醇提取物的醋酸乙酯部分和正丁醇部分进行柱色谱分离,根据光谱数据和理化性质确定各化合物的结构。结果从偏斜淫羊藿的地上部分中分离得到8种已知成分,... 详细信息

目的研究偏斜淫羊藿(Epimediumtruncatum)的化学成分。方法偏斜淫羊藿地上部分95%乙醇提取物的醋酸乙酯部分和正丁醇部分进行柱色谱分离,根据光谱数据和理化性质确定各化合物的结构。结果从偏斜淫羊藿的地上部分中分离得到8种已知成分,分别为宝藿苷Ⅱ(Ⅰ),金丝桃苷(Ⅱ),淫羊藿苷C(Ⅲ),齐墩果酸(Ⅳ),宝藿苷Ⅲ(Ⅴ),宝藿苷Ⅴ(Ⅵ),淫羊藿苷A(Ⅶ)和山奈素3双鼠李糖苷(Ⅷ)。结论以上化合物均为首次从本植物中分离得到。

关键词：偏斜淫羊藿小檗科黄酮类化学成分

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毛獐芽菜中(口山)酮化学成分研究

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中国药学杂志 2005年第9期40卷 657-659页

作者：许旭东杨峻山中国医学科学院-中国协和医科大学药用植物研究所北京100094

目的研究毛獐芽菜(Swertia pubescens Franch)的化学成分。方法毛獐芽菜干燥全草乙醇提取物的醋酸乙酯部分和正丁醇部分进行柱色谱分离,根据光谱数据和理化性质确定各化合物的结构。结果首次从毛獐芽菜干燥全草中分离得到6种已知成分,... 详细信息

目的研究毛獐芽菜(Swertia pubescens Franch)的化学成分。方法毛獐芽菜干燥全草乙醇提取物的醋酸乙酯部分和正丁醇部分进行柱色谱分离,根据光谱数据和理化性质确定各化合物的结构。结果首次从毛獐芽菜干燥全草中分离得到6种已知成分,分别为bellidifodin(Ⅰ),norswertianolin(Ⅱ),swertianolin(Ⅲ),芒果苷(Ⅳ),1,3,5,8-tetrahydroxyxanthone(Ⅴ),isoswer- tianolin(Ⅵ)。结论以上化合物均为首次从本植物中分离得到。

关键词：毛獐芽菜龙胆科 Shan酮 Shan酮苷

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微囊藻气囊尺寸与gvpA/gvpC基因的关系

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水生生物学报 2010年第6期34卷 1228-1230页

作者：许敏徐旭东中国科学院水生生物研究所淡水生态与生物技术国家重点实验室武汉430072

我国是世界上湖泊富营养化最严重的国家之一。太湖、巢湖、滇池等大型浅水湖泊由于富营养化导致蓝藻水华连年爆发,水质日趋恶化,丧失了原有的功能,制约着地区经济发展。水华一般是指藻类过量繁殖形成的水体表面聚集物[1]。在我国。

关键词：微囊藻气囊尺寸 gvpA gvpC

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Mitophagy in acute central nervous system injuries:regulatory mechanisms and therapeutic potentials

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Neural Regeneration Research 2025年第9期20卷 2437-2453页

作者： Siyi xu Junqiu Jia Rui Mao Xiang Cao Yun xu Department of Neurology Nanjing Drum Tower HospitalClinical College of Jiangsu UniversityNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalChinese Academy of Medical Science&Peking Union Medical CollegeNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases Nanjing UniversityNanjingJiangsu ProvinceChina Jiangsu Key Laboratory for Molecular Medicine Medical School of Nanjing UniversityNanjingJiangsu ProvinceChina Nanjing Neurology Medical Center NanjingJiangsu ProvinceChina

Acute central nervous system injuries,including ischemic stro ke,intracerebral hemorrhage,subarachnoid hemorrhage,traumatic brain injury,and spinal co rd injury,are a major global health *** optimal therapies and improving the long-term neurological functions of patients with acute central nervous system injuries are urgent *** are susceptible to damage after acute central nervous system injury,and this leads to the release of toxic levels of reactive oxygen species,which induce cell ***,a selective form of autophagy,is crucial in eliminating redundant or damaged mitochondria during these *** evidence has highlighted the significant role of mitophagy in acute central nervous system *** this review,we provide a comprehensive overview of the process,classification,and related mechanisms of *** also highlight the recent developments in research into the role of mitophagy in various acute central nervous system injuries and drug therapies that regulate *** the final section of this review,we emphasize the potential for treating these disorders by focusing on mitophagy and suggest future research paths in this area.

关键词： autophagy intracerebral hemorrhage ischemic stroke mitochondria mitochondrial biogenesis mitochondrial quality control mitophagy spinal cord injury subarachnoid hemorrhage traumatic brain injury

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Overview of in-situ oxygen production technologies for lunar resources

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 233-255页

作者： Youpeng xu Sheng Pang Liangwei Cong Guoyu Qian dong Wang Laishi Li Yusheng Wu Zhi Wang College of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China CAS Key Laboratory of Green Process and Engineering National Engineering Research Center for Green Recycling of Strategic Metal ResourcesInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

The rich resources and unique environment of the Moon make it an ideal location for human expansion and the utilization of extraterrestrial ***,crucial for supporting human life on the Moon,can be extracted from lunar regolith,which is highly rich in oxygen and contains polymetallic *** oxygen and metal extraction can be achieved using existing metallurgical ***,the ample reserves of water ice on the Moon offer another means for oxygen *** paper offers a detailed overview of the leading technologies for achieving oxygen production on the Moon,drawing from an analysis of lunar resources and environmental *** delves into the principles,processes,advantages,and drawbacks of water-ice electrolysis,two-step oxygen production from lunar regolith,and one-step oxygen production from lunar *** two-step methods involve hydrogen reduction,carbothermal reduction,and hydrometallurgy,while the one-step methods encompass fluorination/chlorination,high-temperature decomposition,molten salt electrolysis,and molten regolith electrolysis(MOE).Following a thorough comparison of raw materials,equipment,technology,and economic viability,MOE is identified as the most promising approach for future in-situ oxygen production on the *** the corrosion characteristics of molten lunar regolith at high temperatures,along with the Moon's low-gravity environment,the development of inexpensive and stable inert anodes and electrolysis devices that can easily collect oxygen is critical for promoting MOE technology on the *** review significantly contributes to our understanding of in-situ oxygen production technologies on the Moon and supports upcoming lunar exploration initiatives.

关键词： lunar resources in-situ oxygen production space metallurgy molten lunar regolith electrolysis

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