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Targeting vulnerable microcircuits in the ventral hippocampus of male transgenic mice to rescue Alzheimer‑like social memory loss

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Military Medical Research 2025年第1期12卷 48-71页

作者： Hui-Yang Lei Gui-lin Pi Ting He Rui Xiong Jing-Ru Lv Jia-Le Liu Dong-Qin Wu Meng-Zhu Li Kun Shi Shi-Hong Li Na-Na Yu Yang Gao Hui-ling Yu lin-Yu Wei Xin Wang Qiu-Zhi Zhou pei-lin Zou Jia-Yang Zhou Ying-Zhou Liu Nai-Ting Shen Jie Yang Dan Ke Qun Wang Gong-Ping Liu Xi-Fei Yang Jian-Zhi Wang Ying Yang Department of Pathophysiology School of Basic MedicineKey Laboratory of Education Ministry of China/Hubei Province for Neurological DisordersTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Traditional Chinese Medicine the Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430014China Key Laboratory of Modern Toxicology of Shenzhen Shenzhen Center for Disease Control and PreventionShenzhen 518055GuangdongChina Co‑Innovation Center of Neuroregeneration Nantong UniversityNantong 226000JiangsuChina

Background:Episodic memory loss is a prominent clinical manifestation of Alzheimer’s disease(AD),which is closely related to tau pathology and hippocampal *** to the heterogeneity of brain neurons,the specific roles of different brain neurons in terms of their sensitivity to tau accumulation and their contribution to AD-like social memory loss remain ***,further investigation is ***:We investigated the effects of AD-like tau pathology by Tandem mass tag proteomic and phosphoproteomic analysis,social behavioural tests,hippocampal electrophysiology,immunofluorescence staining and in vivo optical fibre recording of GCaMP6f and ***,we utilized optogenetics and administered ursolic acid(UA)via oral gavage to examine the effects of these agents on social memory in ***:The results of proteomic and phosphoproteomic analyses revealed the characteristics of ventral hippocampal CA1(vCA1)under both physiological conditions and AD-like tau *** tau progressively accumulated,vCA1,especially its excitatory and parvalbumin(PV)neurons,were fully filled with mislocated and phosphorylated tau(p-Tau).This finding was not observed for dorsal hippocampal CA1(dCA1).The overexpression of human tau(hTau)in excitatory and PV neurons mimicked AD-like tau accumulation,significantly inhibited neuronal excitability and suppressed distinct discrimination-associated firings of these neurons within *** excitatory and PV neurons in vCA1 at specific rhythms and time windows efficiently ameliorated tau-impaired social ***,1 month of UA administration efficiently decreased tau accumulation via autophagy in a transcription factor EB(TFEB)-dependent manner and restored the vCA1 microcircuit to ameliorate tau-impaired social ***:This study elucidated distinct protein and phosphoprotein networks between dCA1 and vCA1 and highlighted the susceptibility of the vCA1 microcircuit to AD-like tau

关键词： Alzheimer’s disease Tau protein Ventral hippocampus Social memory Ursolic acid Transcription factor EB(TFEB)

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人参皂苷 Rg3激活线粒体功能改善慢性疼痛的机制

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中国药理学通报 2025年第1期41卷 94-100页

作者：张培根朱海丽高卉湖北科技学院医学部药学院湖北咸宁437100

目的探究人参皂苷Rg3在慢性神经性疼痛中的作用及机制。方法筛选并分析慢性神经性疼痛数据中前额叶皮层内差异性表达基因;小鼠随机分为假手术组、模型组及给药组;采用坐骨神经慢性压迫损伤模型构建神经病理性疼痛动物模型,腹腔注射人参... 详细信息

目的探究人参皂苷Rg3在慢性神经性疼痛中的作用及机制。方法筛选并分析慢性神经性疼痛数据中前额叶皮层内差异性表达基因;小鼠随机分为假手术组、模型组及给药组;采用坐骨神经慢性压迫损伤模型构建神经病理性疼痛动物模型,腹腔注射人参皂苷Rg3给药;记录小鼠痛觉行为变化;HE染色、尼氏染色、免疫印迹及免疫组化检测各组PFC脑组织神经和线粒体损伤情况;分子对接探究人参皂苷Rg3的作用靶点;Mito-Tracker检测线粒体膜电位;ATP试剂盒分析ATP含量。结果与假手术组相比,模型组小鼠表现为痛觉过敏和运动能力受损;PFC内神经及线粒体损伤(P<0.05)。与模型组相比,人参皂苷Rg3给药可增加小鼠机械痛阈值、热缩足潜伏期和转棒停留时间;同时降低PFC内炎性细胞、尼氏小体及Dnm1l阳性细胞数,下调c-Fos、IL-1β和Dnm1l蛋白表达水平(P<0.05)。分子对接显示人参皂苷Rg3可结合Dnm1l。在细胞水平,人参皂苷Rg3给药可升高线粒体膜电位和ATP含量(P<0.05)。结论人参皂苷Rg3可通过调控降低PFC内炎症因子和线粒相关蛋白表达,改善线粒体功能,缓解CCI小鼠痛觉过敏。

关键词：人参皂苷Rg3 慢性神经性疼痛线粒体前额叶皮层 CCI PFC

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F,Al共掺杂ZnO透明导电薄膜的制备及掺杂机理研究

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物理学报 2020年第19期69卷 282-290页

作者：王延峰谢希成刘晓洁韩冰武晗晗连宁宁杨富宋庆功裴海林李俊杰河北北方学院理学院新能源科学与技术研究所张家口075000 中国民航大学理学院天津300300 陆军军事交通学院基础部天津300161

本文采用磁控溅射技术,对F和Al共掺杂ZnO(FAZO)薄膜进行研究,系统地研究了溅射气压对薄膜结构、形貌、光电等特性的影响.实验研究结果表明:F,Al共掺入并未改变ZnO的生长方式,所制备的薄膜都呈(002)择优生长;随着溅射气压增加,FAZO薄膜... 详细信息

本文采用磁控溅射技术,对F和Al共掺杂ZnO(FAZO)薄膜进行研究,系统地研究了溅射气压对薄膜结构、形貌、光电等特性的影响.实验研究结果表明:F,Al共掺入并未改变ZnO的生长方式,所制备的薄膜都呈(002)择优生长;随着溅射气压增加,FAZO薄膜的沉积速率降低,结晶质量恶化,表面形貌由“弹坑状”逐渐变为“弹坑状”与“颗粒状”并存的形貌特性,表面粗糙度增加.在0.5 Pa时制备的FAZO薄膜性能最优,迁移率40.03 cm2/(V·s),载流子浓度3.92×1020 cm–3,电阻率最低,为3.98×10–4 ΩW·cm,380-1200 nm平均透过率约90%.理论模拟结果表明:F和Al的共掺杂兼顾了F,Al单独掺杂的优点,克服了以往金属元素掺杂仅依靠金属元素轨道提供导电电子的不足,实现了既增加载流子浓度又减少了掺入原子各轨道间相互作用对载流子散射的影响.掺入的F 2p电子轨道对O 2p及Zn 4s电子轨道产生排斥,使它们分别下移,提供导电电子;同时掺入的Al的3s和3p电子轨道也为导电电子提供了贡献.F和Al共掺之后载流子浓度提升更加显著,导电性能增强.

关键词： F和Al共掺杂ZnO薄膜磁控溅射第一性原理计算太阳电池

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A new exceptionally preserved corystosperm wood from the Jurassic of East Asia

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Science China Earth Sciences 2025年第3期68卷 803-810页

作者： Zikun JIANG Ning TIAN Yongdong WANG Fangyu LI Junling pei Dieter UHL Ya LI Hao WU Zhenguo NING Ruiying HAO Chinese Academy of Geological Sciences College of Palaeontology Shenyang Normal University Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences College of Resources and Environmental Engineering Guizhou University East China University of Technology Senckenberg Research Institute and Natural History Museum Frankfurt Zhejiang Museum of Natural History Department of Natural Resources of Shandong Province

Corystosperms, an extinct group of “seed ferns” that lived from the late Permian to the Cretaceous or Eocene, are significant for seed plant phylogeny for their unique roles in partially resolving the long-standing question of angiosperm origins.A new fossil wood taxon, Fengweioxylon sinense gen. et sp. nov. is reported here based on exceptionally preserved wood material from the Jurassic in western Liaoning, China, whose peculiar wood structure enables it to be recognized as the first unequivocal fossil wood record of a corystosperm plant in Laurasia. The anatomical structures of this corystosperm wood show gymnospermous characters. The discovery of the new specimen will provide more anatomical evidence for understanding the systematic and affinity of this seed plants.

关键词： Corystosperms Fossil wood Laurasia Jurassic

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基于REDCap系统导入及分析全膝关节置换术多中心随机对照临床研究数据

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复旦学报(医学版) 2025年第1期52卷 119-127页

作者：刘煜曹佩华丁长海南方医科大学珠江医院临床研究中心广州510280

目的以一项全膝关节置换术多中心随机对照临床研究为例,介绍利用REDCap(Research Electronic Data Capture)系统导入及分析数据的方法。方法利用REDCap系统的多功能工具,包括数据导入工具、数据导出、报表与统计功能、项目仪表盘及编码... 详细信息

目的以一项全膝关节置换术多中心随机对照临床研究为例,介绍利用REDCap(Research Electronic Data Capture)系统导入及分析数据的方法。方法利用REDCap系统的多功能工具,包括数据导入工具、数据导出、报表与统计功能、项目仪表盘及编码手册等,处理和分析全膝关节置换术多中心随机对照临床研究数据。电子化的临床数据经过调整与标准化后,通过REDCap的数据导入工具批量上传至系统。使用REDCap的数据导出功能对数据进行初步整理,并借助其统计与报表功能进行描述性统计分析,以确保数据质量和完整性。结果通过REDCap系统成功创建了膝骨关节炎临床研究的电子数据采集与管理平台。该平台能够实时采集来自多个中心的临床数据,并通过内置的数据管理和质量控制机制,确保数据的准确性和一致性。借助REDCap的统计分析功能,研究团队能够实时监测数据并进行质量评估和动态分析,为后续的深入统计分析提供了基础。结论利用REDCap系统可以搭建全新的临床研究项目,开展中的临床研究也可利用其调整、导入和分析电子化数据,从而提高数据管理的科学性和研究效率。

关键词： REDCap 临床研究数据库电子数据采集全膝关节置换术

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Distinct ultrafast dynamics of bilayer and trilayer nickelate superconductors regarding the density-wave-like transitions

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Science Bulletin 2025年第2期70卷 180-186页

作者： Yidian Li Yantao Cao Liangyang Liu Pai Peng Hao lin Cuiying pei Mingxin Zhang Heng Wu Xian Du Wenxuan Zhao Kaiyi Zhai Xuefeng Zhang Jinkui Zhao Miaoling lin Pingheng Tan Yanpeng Qi Gang Li Hanjie Guo Luyi Yang Lexian Yang State Key Laboratory of Low Dimensional Quantum Physics Department of PhysicsTsinghua UniversityBeijing 100084China Key Lab for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou UniversityLanzhou 730000China Songshan Lake Materials Laboratory Dongguan 523808China School of Physical Science and Technology ShanghaiTech University and CAS-Shanghai Science Research CenterShanghai 201210China State Key Laboratory of Superlattices and Microstructures Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China ShanghaiTech Laboratory for Topological Physics Shanghai 200031China Laboratory of High-resolution Electron Microscopy ShanghaiTech UniversityShanghai 201210China Frontier Science Center for Quantum Information Beijing 100084China

In addition to the pressurized high-temperature superconductivity,bilayer and trilayer nickelate superconductors La_(n+1)Ni_nO_(3n+1)(n=2 and 3)exhibit many intriguing properties at ambient pressure,such as orbital-dependent electronic correlation,non-Fermi liquid behavior,and density-wave ***,using ultrafast reflectivity measurement,we observe a drastic difference between the ultrafast dynamics of the bilayer and trilayer nickelates at ambient *** observe a coherent phonon mode in La_(4)Ni_(3)O_(10)involving the collective vibration of La,Ni,and O atoms,which is absent in La_(3)Ni_(2)O_(7).Temperature-dependent relaxation time diverges near the density-wave transition temperature of La_(4)Ni_(3)O_(10),while it is inversely proportional to the temperature in La_(3)Ni_(2)O_(7)above~150 K,suggesting a non-Fermi liquid behavior of La_(3)Ni_(2)O_(7).Moreover,we estimate the electron–phonon coupling constants to be 0.05–0.07 and 0.12–0.16 for La_(3)Ni_(2)O_(7)and La_(4)Ni_(3)O_(10),respectively,suggesting a relatively minor role of electron–phonon coupling in the electronic properties of La_(n+1)Ni_nO_(3n+1)at ambient *** relevant microscopic interaction and dynamic information are essential for further studying the interplay between superconductivity and density-wave transitions in nickelate superconductors.

关键词： Nickelate superconductors Density-wave state Ultrafast dynamics Electron-phonon coupling Coherent phonon

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Constructing Ti_(3)C_(2)T_(x)-MXene-based gradient woodpile structure by direct ink writing 3D printing for efficient microwave absorption

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International Journal of Minerals,Metallurgy and Materials 2025年第3期32卷 657-667页

作者： Changtian Zhu pei Liu Jin Chen Zixuan Ding Guohui Tang Qingqing Gao Yinxu Ni Kai Xu Zhilei Hao Gaojie Xu Fenghua Liu School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China Ningbo Institute of Materials Technology&Engineering Chinese Academy of SciencesNingbo 315201China

As a novel 2D material,Ti_(3)C_(2)T_(x)-MXene has become a major area of interest in the field of microwave absorption(MA).However,the MA effect of common Ti_(3)C_(2)T_(x)-MXene is not prominent and often requires complex processes or combinations of other ma-terials to achieve enhanced *** this context,a kind of gradient woodpile structure using common Ti_(3)C_(2)T_(x)-MXene as MA ma-terial was designed and manufactured through direct ink writing(DIW)3D *** minimum reflection loss(RL_(min))of the Ti_(3)C_(2)T_(x)-MXene-based gradient woodpile structures with a thickness of less than 3 mm can reach-70 dB,showing considerable improve-ment compared with that of a completely filled *** addition,the effective absorption bandwidth(EAB)reaches 7.73 *** study demonstrates that a Ti_(3)C_(2)T_(x)-MXene material with excellent MA performance and tunable frequency band can be successfully fab-ricated with a macroscopic structural design and through DIW 3D printing without complex material hybridization and modification,of-fering broad application prospects by reducing electromagnetic wave radiation and interference.

关键词： Ti_(3)C_(2)T_(x)-MXene electromagnetic wave absorption macro-design impedance matching 3D printing ink

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水力发电机组水压脉动测试装置的研究

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甘肃工业大学学报 2000年第2期26卷 45-50页

作者：刘希远陈非裴海林骆东松李娟甘肃工业大学电气工程与信息工程系甘肃兰州730050 甘肃电力试验研究所甘肃兰州730050

针对水力发电机组水压脉动超低频特性 ,开发出一种在 Windows平台上实时多通道数据采集系统 ,并结合测试现场环境 ,提出了抗干扰的各种措施 .经实际运用。

关键词：水电机组水压脉动数据采集测试装置

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Low‑Temperature Fabrication of Stable Black‑Phase CsPbI_(3) Perovskite Flexible Photodetectors Toward Wearable Health Monitoring

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Nano-Micro Letters 2025年第3期17卷 232-245页

作者： Yingjie Zhao Yicheng Sun Chaoxin pei Xing Yin Xinyi Li Yi Hao Mengru Zhang Meng Yuan Jinglin Zhou Yu Chen Yanlin Song College of Chemistry and Pingyuan Laboratory Zhengzhou UniversityZhengzhou 450001People’s Republic of China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Key Laboratory of Bio‑Inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049People’s Republic of China

Flexible wearable optoelectronic devices fabricated fromorganic–inorganic hybrid perovskites significantly accelerate the developmentof portable energy,biomedicine,and sensing fields,but their poor thermal stabilityhinders further ***,all-inorganic perovskites possessexcellent thermal stability,but black-phase all-inorganic perovskite filmusually requires high-temperature annealing steps,which increases energy consumptionand is not conducive to the fabrication of flexible wearable *** this work,an unprecedented low-temperature fabrication of stable blackphaseCsPbI3perovskite films is demonstrated by the in situ hydrolysis reactionof diphenylphosphinic chloride *** released diphenyl phosphateand chloride ions during the hydrolysis reaction significantly lower the phasetransition temperature and effectively passivate the defects in the perovskitefilms,yielding high-performance photodetectors with a responsivity of 42.1 AW−1 and a detectivity of 1.3×10^(14)***,high-fidelity imageand photoplethysmography sensors are demonstrated based on the fabricated flexible wearable *** work provides a newperspective for the low-temperature fabrication of large-area all-inorganic perovskite flexible optoelectronic devices.

关键词： In situ hydrolyzation Low-temperature processing All-inorganic perovskite Flexible photodetectors Health monitoring

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四波混频Autler-Townes分裂中的探测光影响

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原子与分子物理学报 2025年第3期42卷 110-115页

作者：裴丽娅侯海龙北京化工大学数理学院北京100029

在双Λ-型四波混频系统中,研究了探测光强度对Autler-Townes(AT)分裂效应的影响.随着弱探测光强度增大,由缀饰态共振产生的AT分裂双峰间隔不变,但却逐渐增宽线宽且减弱直至消失;而在强耦合光失谐条件下,不对称地位于单光子共振峰两侧的A... 详细信息

在双Λ-型四波混频系统中,研究了探测光强度对Autler-Townes(AT)分裂效应的影响.随着弱探测光强度增大,由缀饰态共振产生的AT分裂双峰间隔不变,但却逐渐增宽线宽且减弱直至消失;而在强耦合光失谐条件下,不对称地位于单光子共振峰两侧的AT分裂双峰却会逐渐趋于对称分布.详细讨论了探测光场对原子的缀饰影响,提出通过探测光强度可以调控原子两基态之间的有效Raman相干,从而影响AT分裂双峰的特征.

关键词：四波混频原子相干 Autler-Townes分裂缀饰态横向弛豫率

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