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Blocking postsynaptic density-93 binding to C-X3-C motif chemokine ligand 1 promotes microglial phenotypic transformation during acute ischemic stroke

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Neural Regeneration Research 2023年第5期18卷 1033-1039页

作者： Xiao-Wei Cao Hui Yang Xiao-Mei liu Shi-Ying Lou li-ping kong liang-Qun Rong Jun-Jun Shan Yun Xu Qing-Xiu Zhang Department of Neurology of Drum Tower Hospital Medical School and the State Key Laboratory of Pharmaceutical BiotechnologyNanjing UniversityNanjingJiangsu ProvinceChina Nanjing Drum Tower Clinical College of Xuzhou Medical University NanjingJiangsu ProvinceChina Institute of Brain Sciences Nanjing UniversityNanjingJiangsu ProvinceChina Jiangsu Key Laboratory for Molecular Medicine Medical School of Nanjing UniversityNanjingJiangsu ProvinceChina Jiangsu Province Stroke Center for Diagnosis and Therapy NanjingJiangsu ProvinceChina Nanjing Neurology Clinic Medical Center NanjingJiangsu ProvinceChina Department of Neurology Lianyungang Municipal HospitalAffiliated Hospital of Xuzhou Medical UniversityLianyungangJiangsu ProvinceChina Department of Neurosurgery of Drum Tower Hospital Medical School and the State Key Laboratory of Pharmaceutical BiotechnologyNanjing UniversityNanjingJiangsu ProvinceChina Department of Neurosurgery Affiliated Xuzhou Municipal Hospital of Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina Jiangsu Key Laboratory of Immunity and Metabolism Department of Pathogen Biology and Immunology and Laboratory of Infection and ImmunityXuzhou Medical UniversityXuzhouJiangsu ProvinceChina Department of Neurology Second Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina

We previously reported that postsynaptic density-93 mediates neuron-microglia crosstalk by interacting with amino acids 357–395 of C-X3-C motif chemokine ligand 1(CX3 CL1) to induce microglia polarization. More importantly, the peptide Tat-CX3 CL1(comprising amino acids 357–395 of CX3 CL1) disrupts the interaction between postsynaptic density-93 and CX3 CL1, reducing neurological impairment and exerting a protective effect in the context of acute ischemic stroke. However, the mechanism underlying these effects remains unclear. In the current study, we found that the pro-inflammatory M1 phenotype increased and the anti-inflammatory M2 phenotype decreased at different time points. The M1 phenotype increased at 6 hours after stroke and peaked at 24 hours after perfusion, whereas the M2 phenotype decreased at 6 and 24 hours following reperfusion. We found that the peptide Tat-CX3 CL1(357–395 aa) facilitates microglial polarization from M1 to M2 by reducing the production of soluble CX3 CL1. Furthermore, the a disintegrin and metalloprotease domain 17(ADAM17) inhibitor GW280264 x, which inhibits metalloprotease activity and prevents CX3 CL1 from being sheared into its soluble form, facilitated microglial polarization from M1 to M2 by inhibiting soluble CX3 CL1 formation. Additionally, Tat-CX3 CL1(357–395 aa) attenuated long-term cognitive deficits and improved white matter integrity as determined by the Morris water maze test at 31–34 days following surgery and immunofluorescence staining at 35 days after stroke, respectively. In conclusion, Tat-CX3 CL1(357–395 aa) facilitates functional recovery after ischemic stroke by promoting microglial polarization from M1 to M2. Therefore, the Tat-CX3 CL1(357–395 aa) is a potential therapeutic agent for ischemic stroke.

关键词： a disintegrin and metalloprotease domain 17 cerebral ischemia/reperfusion C-X3-C motif chemokine ligand 1 GW280264x microglia neuroinflammation postsynaptic density-93 Tat-CX3CL1(357–395aa)

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Response of Element Distribution of Various Organs of Maize to Fertilizer Application

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Agricultural Sciences in China 2010年第3期9卷 401-407页

作者： HU Hao, BAI You-lu, YANG li-ping, kong Qing-bo, LU Yan-li, WANG Lei and WANG Zhi-yong Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/Key Laboratory of Plant Nutrition and Nutrient Cycling, Ministry of Agriculture, Beijing 100081, P.R.China [a] Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences/Key Laboratory of Plant Nutrition and Nutrient Cycling Ministry of Agriculture Beijing 100081 P.R.China

The effect of fertilizer application on biomass dry weight and element distribution of various organs of maize was investigated from the aspect of microscopic view to disclose the internal mechanism of fertilizer effect on crop. Five fertilizer treatments： no fertilizer （CK）, nitrogen phosphorus fertilizer （NP）, nitrogen potassium fertilizer （NK）, phosphorus potassium （PK）, and nitrogen phosphorus potassium fertilizer （NPK） were designed. Field experiment on the response of biomass dry weight and N, P, K, Cu, Zn, Fe, and Mn element distribution of stem, leaf and seed of maize （Zea mays L.） to different fertilizer treatments application was carried out. The results showed that dry weight and element content of various organs of maize were different. N content of various organs followed this order leaf〉 seed 〉 stem; P content of various organs was seed 〉 leaf〉 stem; K content was stem 〉 leaf〉 seed; and Fe content was leaf〉 stem 〉 seed. Fertilizer application reduced the differences of N, P, K, and Fe contents of various organs, and changed the size order of the dry weight and the Cu and Zn contents of leaf, seed and stem. Except for individual treatment, the response direction of N, P and Fe elements to fertilizer application was similar to Cu and Zn. The response of element content of various organs of maize to different fertilizer combinations was also different. The response extent of N, P and K major elements to fertilizer application was larger than microelement of Cu, Zn, Fe, and Mn; the response extent of stem and leaf was larger than seed; the response to NPK fertilizer treatment was bigger than NP, NK and PK. In the whole, response differences of element distribution to various fertilizer treatments were not remarkable. Besides, element distribution of various organs of maize was also influenced by the mutual effect of fertilizer varieties. The response direction and extent of various element distributions to different fertilizer treatments had both similarit

关键词： element distribution fertilizer application maize

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Micro-strain regulation strategy to stabilize perovskite lattice based on the categories and impact of strain on perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 578-604页

作者： Caixia li Wenwu liu Shiji Da lingbin kong Fen Ran State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of Technology School of Materials Science and Engineering Lanzhou University of Technology

Photovoltaic metal halide perovskite solar cells(PSCs) convert light to electricity more efficiently than crystalline silicon cells, and the cost of materials used to make them is lower than that of silicon *** efficiency is not a core issue affecting the application of perovskite solar cells in special *** present, stability is the major technical encounters that hinders its further commercial development. Microstrain in PSCs is currently a significant factor responsible for the device's instability. Strain-induced ion migration is widely believed to accelerate perovskite degradation even when external stimuli are ***, it is imperative to study strain to enhance the stability of PSCs. This paper reviews recent developments to understand strain's origin and effect mechanisms on performance of PSCs, including ion migration,failure behavior, defect formation, and its effect on photoelectric properties, stability, and ***, several well-known strain management strategies are systematically introduced based on the strain effect mechanism and strain engineering on the film, providing more clues for further preparation with increased stability. The manipulation of external physical strain applied from films to entire devices has been extensively studied. Furthermore, recommendations for future research directions and chemical approaches have been provided. It is emphasized that strain engineering plays a crucial role in improving the efficiency and longevity of PSCs. Tensile strain causes rapid degradation, while moderate compressive strain and external strain control could improve properties and stability. Efforts should focus on controlling compressive strain to mitigate residual tensile strain and introducing it in a controlled manner. Future research endeavors may focus on exploring these pathways to improve the efficiency and lifespan of PSCs.

关键词： Halide perovskite solar cells Strain origins Strain effects Strain management

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有氧运动对脑卒中后慢性偏瘫患者下肢运动功能、血趋化素及代谢危险因素的影响

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中国动脉硬化杂志 2017年第4期25卷 393-397页

作者：李萍孔海霞李洪娟天津市第五中心医院康复医学科天津市300450 天津市第五中心医院检验科天津市300450

目的探讨有氧运动对脑卒中后慢性偏瘫患者6 min步行距离、下肢运动功能及血趋化素水平等的影响。方法将108例脑卒中后慢性偏瘫患者按随机数字表法分为药物组、运动组和药物+运动组。药物组进行常规药物治疗;药物+运动组在药物治疗基础上... 详细信息

目的探讨有氧运动对脑卒中后慢性偏瘫患者6 min步行距离、下肢运动功能及血趋化素水平等的影响。方法将108例脑卒中后慢性偏瘫患者按随机数字表法分为药物组、运动组和药物+运动组。药物组进行常规药物治疗;药物+运动组在药物治疗基础上,进行规律有氧运动;运动组仅进行有氧运动。采用功率自行车,每周3次,每次30 min,共治疗3个月。3组患者治疗3个月前后记录6 min步行距离、简式Fugl-Meyer运动功能量表下肢评分(FMA)、血压、体质量及身高,检测血趋化素、C反应蛋白、同型半胱氨酸及其他血生化指标。分析6 min步行距离与血趋化素水平的相关性。结果治疗3个月后,药物+运动组和运动组6 min步行距离、下肢FMA评分较同组治疗前明显增加(P<0.05,P<0.01),血趋化素、C反应蛋白、同型半胱氨酸、空腹血糖、总胆固醇、低密度脂蛋白胆固醇、收缩压、体质量较同组治疗前明显下降(P<0.05)。药物+运动组治疗后6 min步行距离、下肢FMA评分明显高于治疗后药物组(P<0.05),药物+运动组C反应蛋白、空腹血糖、收缩压明显低于治疗后药物组(P<0.05)。治疗前血趋化素与6 min步行距离呈负相关(r=-0.279,P<0.01),多元逐步回归分析显示血趋化素下降与6 min步行距离的增加独立相关(P<0.05)。结论有氧运动可增加脑卒中后慢性偏瘫患者6 min步行距离、下肢FMA评分,提高下肢运动功能,并降低趋化素、C反应蛋白、同型半胱氨酸、空腹血糖、血脂及血压,从而改善生存质量、炎症状态及心脑血管代谢性危险因素。

关键词：有氧运动脑卒中趋化素 6min步行距离下肢运动功能

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盐穴地下储库地表沉降的黏弹模型及应用

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岩土力学 2017年第7期38卷 2049-2058页

作者：李银平孔庆聪施锡林李硕杨博进杨春和中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室湖北武汉430071 即墨国际商贸城开发投资有限公司山东即墨266200

盐穴地下油气储库在长期运行过程中的地表沉降预测是储库安全评价的重要内容,目前尚无成熟的基于力学理论的解析模型。将盐穴储库地表沉降问题近似为半无限空间内球型空洞受力收缩导致的边界位移问题,利用弹性无限域内球型空洞受力收缩... 详细信息

盐穴地下油气储库在长期运行过程中的地表沉降预测是储库安全评价的重要内容,目前尚无成熟的基于力学理论的解析模型。将盐穴储库地表沉降问题近似为半无限空间内球型空洞受力收缩导致的边界位移问题,利用弹性无限域内球型空洞受力收缩的球对称位移解,运用叠加原理,推导得到半无限空间球型空洞在一定内压作用下引起的地表沉降的弹性积分形式解析解。然后运用对应原理,将体积变形视为弹性,畸变视为Maxwell黏弹性,对地表沉降弹性解析解进行拉普拉斯变换,得到时空域上的地表沉降的黏弹性积分形式解析解。通过与数值模拟结果的比对,验证了文中弹性模型的准确性。最后将沉降预测黏弹模型运用于某盐穴储库地表沉降的预测分析,并与该储库现场沉降观测数据进行对比,分析表明,新模型能够很好地预测盐穴储库地表沉降及发展趋势,该模型为储库地表沉降预测提供了一套新的基于力学理论的方法。

关键词：盐岩储库地表沉降预测黏弹性模型

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A low redox potential and long life organic anode material for sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 557-564页

作者： Zhi li Yang Wei Kang Zhou Xin Huang Xing Zhou Jie Xu Taoyi kong Junwei Lucas Bao Xiaoli Dong Yonggang Wang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Fudan University Department of Chemistry Boston College School of Materials Science and Engineering Anhui University of Technology

Sodium-ion batteries （SIBs） with organic electrodes are an emerging research direction due to the sustainability of organic materials based on elements like C,H,O,and sodium ***,organic electrode materials for SIBs are mainly used as cathodes because of their relatively high redox potentials（>1 V）.Organic electrodes with low redox potential that can be used as anode are ***,a novel organic anode material （tetrasodium 1,4,5,8-naphthalenetetracarboxylate,Na4TDC） has been developed with low redox potential （lic *** three-sodium storage mechanism was demonstrated with various in-situ/ex-situ spectroscopy and theoretical calculations,showing a high capacity of 208 mAh/g and an average decay rate of merely 0.022%per ***,the Na4TDC-hard carbon composite can further acquire improved capacity and cycling stability for 1200 cycles even with a high mass loading of up to 20 mg *** pairing with a thick Na3V2（PO4）3cathode (20.6 mg cm-2),the as-fabricated full cell exhibited high operating voltage （2.8 V）,excellent rate performance and cycling stability with a high capacity retention of 88.7% after 200 cycles,well highlighting the Na4TDC anode material for SIBs.

关键词： Organic anode material Low redox potential Composite anode Sodium-ion batteries

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Gut microbiota-astrocyte axis: new insights into age-related cognitive decline

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Neural Regeneration Research 2025年第4期20卷 990-1008页

作者： Lan Zhang Jingge Wei Xilei liu Dai li Xiaoqi Pang Fanglian Chen Hailong Cao ping Lei Haihe Laboratory of Cell Ecosystem Department of GeriatricsTianjin Medical University General HospitalTianjinChina Tianjin Geriatrics Institute Tianjin Medical University General HospitalTianjinChina Department of Gastroenterology and Hepatology Tianjin Medical University General HospitalNational Key Clinical SpecialtyTianjin Institute of Digestive DiseasesTianjin Key Laboratory of Digestive DiseasesTianjinChina Department of Urology Tianjin Medical University General HospitalTianjinChina Tianjin Neurological Institution Tianjin Medical University General HospitalTianjinChina

With the rapidly aging human population,age-related cognitive decline and dementia are becoming increasingly prevalent *** is considered the main risk factor for cognitive decline and acts through alterations in the composition of the gut microbiota,microbial metabolites,and the functions of *** microbiota–gut–brain axis has been the focus of multiple studies and is closely associated with cognitive *** article provides a comprehensive review of the specific changes that occur in the composition of the gut microbiota and microbial metabolites in older individuals and discusses how the aging of astrocytes and reactive astrocytosis are closely related to age-related cognitive decline and neurodegenerative *** article also summarizes the gut microbiota components that affect astrocyte function,mainly through the vagus nerve,immune responses,circadian rhythms,and microbial ***,this article summarizes the mechanism by which the gut microbiota–astrocyte axis plays a role in Alzheimer’s and Parkinson’s *** findings have revealed the critical role of the microbiota–astrocyte axis in age-related cognitive decline,aiding in a deeper understanding of potential gut microbiome-based adjuvant therapy strategies for this condition.

关键词： age aging Alzheimer’s disease astrocytes cognitive decline dementia gut microbiota gut–brain axis microbial metabolites neuroinflammation Parkinson’s disease

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Cs阳离子掺杂对CH_(3)NH_(3)PbI_(3)钙钛矿电子性质的影响研究

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原子与分子物理学报 2025年第6期42卷 174-182页

作者：张平丽吉林师范大学物理学院四平136000

有机-无机杂化钙钛矿太阳能电池被报道具有极高的功率转换效率,是下一代太阳能电池材料有希望的候选者,但其化学性质极不稳定,在高温高湿条件下易分解.本研究采用无机Cs阳离子取代CH_(3)NH_(3)PbI_(3)结构中的CH_(3)NH_(3)有机阳离子,... 详细信息

有机-无机杂化钙钛矿太阳能电池被报道具有极高的功率转换效率,是下一代太阳能电池材料有希望的候选者,但其化学性质极不稳定,在高温高湿条件下易分解.本研究采用无机Cs阳离子取代CH_(3)NH_(3)PbI_(3)结构中的CH_(3)NH_(3)有机阳离子,利用第一性原理密度泛函理论,计算了未掺杂CH_(3)NH_(3)PbI_(3)钙钛矿和Cs阳离子掺杂钙钛矿的电子性质.结果表明,适当比例的Cs阳离子掺杂能够增强Pb-I的相互作用力,且Cs阳离子掺杂并未改变钙钛矿直接半导体的属性.Cs阳离子与Pb-I框架之间强的共价相互作用,导致Cs阳离子掺杂钙钛矿具有更加稳定的晶体结构.这项工作阐明了Cs阳离子掺杂钙钛矿材料高稳定性的潜在机理,可以为将来设计高效稳定的钙钛矿光伏材料提供一定的理论依据.

关键词：钙钛矿 Cs阳离子掺杂能带结构态密度

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DEM:Deep Entity Matching Across Heterogeneous Information Networks

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Journal of Computer Science & Technology 2020年第4期35卷 739-750页

作者： Chao kong Bao-Xiang Chen li-ping Zhang School of Computer and Information Anhui Polytechnic UniversityWuhu 241000China

Heterogeneous information networks,which consist of multi-typed vertices representing objects and multi-typed edges representing relations between objects,are ubiquitous in the real *** this paper,we study the problem of entity matching for heterogeneous information networks based on distributed network embedding and multi-layer perceptron with a highway network,and we propose a new method named DEM short for Deep Entity *** contrast to the traditional entity matching methods,DEM utilizes the multi-layer perceptron with a highway network to explore the hidden relations to improve the performance of ***,we incorporate DEM with the network embedding methodology,enabling highly efficient computing in a vectorized ***'s generic modeling of both the network structure and the entity attributes enables it to model various heterogeneous information networks *** illustrate its functionality,we apply the DEM algorithm to two real-world entity matching applications:user linkage under the social network analysis scenario that predicts the same or matched users in different social platforms and record linkage that predicts the same or matched records in different citation *** experiments on real-world datasets demonstrate DEM's effectiveness and rationality.

关键词： heterogeneous information network entity matching network embedding multi-layer perceptron

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3D Printing of Tough Hydrogel Scaffolds with Functional Surface Structures for Tissue Regeneration

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Nano-Micro Letters 2025年第2期17卷 18-45页

作者： Ke Yao Gaoying Hong Ximin Yuan Weicheng kong Pengcheng Xia Yuanrong li Yuewei Chen Nian liu Jing He Jue Shi Zihe Hu Yanyan Zhou Zhijian Xie Yong He State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China liangzhu Laboratory Zhejiang UniversityHangzhou 310027People’s Republic of China Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province College of Mechanical EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Stomatology Hospital School of StomatologyZhejiang University School of MedicineHangzhou 310027People’s Republic of China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001People’s Republic of China Institute of Digital Medicine Nanjing First HospitalNanjing Medical UniversityNanjing 210006People’s Republic of China

Hydrogel scaffolds have numerous potential applications in the tissue engineering ***,tough hydrogel scaffolds implanted in vivo are seldom reported because it is difficult to balance biocompatibility and high mechanical *** by Chinese ramen,we propose a universal fabricating method(printing-P,training-T,cross-linking-C,PTC&PCT)for tough hydrogel scaffolds to fill this ***,3D printing fabricates a hydrogel scaffold with desired structures(P).Then,the scaffold could have extraordinarily high mechanical properties and functional surface structure by cycle mechanical training with salting-out assistance(T).Finally,the training results are fixed by photo-cross-linking processing(C).The tough gelatin hydrogel scaffolds exhibit excellent tensile strength of 6.66 MPa(622-fold untreated)and have excellent ***,this scaffold possesses functional surface structures from nanometer to micron to millimeter,which can efficiently induce directional cell ***,this strategy can produce bionic human tissue with mechanical properties of 10 kPa-10 MPa by changing the type of salt,and many hydrogels,such as gelatin and silk,could be improved with PTC or PCT *** experiments show that this scaffold can effectively promote the new generation of muscle fibers,blood vessels,and nerves within 4 weeks,prompting the rapid regeneration of large-volume muscle loss injuries.

关键词： 3D printing Tough hydrogel scaffold Functional surface structure Tissue regeneration Biomaterials

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