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Nanocarrier-mediated siRNA delivery:a new approach for the treatment of traumatic brain injury-related Alzheimer's disease

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Neural Regeneration Research 2025年第9期20卷 2538-2555页

作者： Jie Jin Huajing Zhang Qianying lu Linqiang Tian Sanqiao Yao Feng Lai Yangfan Liang Chuanchuan Liu Yujia lu Sijia Tian Yanmei Zhao Wenjie Ren Institute of Disaster and Emergency Medicine Tianjin UniversityTianjinChina Key Laboratory for Disaster Medicine Technology TianjinChina Henan Medical Key Laboratory for Research of Trauma and Orthopedics The Third Affiliated Hospital of Xinxiang Medical UniversityXinxiangHenan ProvinceChina Clinical Medical Center of Tissue Engineering and Regeneration Xinxiang Medical UniversityXinxiangHenan ProvinceChina Institutes of Health Central Plain Xinxiang Medical UniversityXinxiangHenan ProvinceChina School of Public Health Xinxiang Medical UniversityXinxiangHenan ProvinceChina

Traumatic brain injury and Alzheimer's disease share pathological similarities,including neuronal loss,amyloid-βdeposition,tau hyperphosphorylation,blood-brain barrier dysfunction,neuroinflammation,and cognitive ***,traumatic brain injury can exacerbate Alzheimer's disease-like pathologies,potentially leading to the development of Alzheimer's *** offer a potential solution by facilitating the delive ry of small interfering RNAs across the blood-brain barrier for the targeted silencing of key pathological genes implicated in traumatic brain injury and Alzheimer's disease.U nlike traditional approaches to neuro regeneration,this is a molecula r-targeted strategy,thus avoiding non-specific drug *** review focuses on the use of nanocarrier systems for the efficient and precise delive ry of siRNAs,discussing the advantages,challenges,and future *** principle,siRNAs have the potential to target all genes and non-targetable protein s,holding significant promise for treating various *** the various therapeutic approaches currently available for neurological diseases,siRNA gene silencing can precisely"turn off"the expression of any gene at the genetic level,thus radically inhibiting disease progression;however,a significant challenge lies in delivering siRNAs across the blood-brain *** have received increasing attention as an innovative drug delive ry tool fo r the treatment of brain *** are considered a potential therapeutic strategy with the advantages of being able to cross the blood-brain barrier,targeted drug delivery,enhanced drug stability,and multifunctional *** use of nanoparticles to deliver specific modified siRNAs to the injured brain is gradually being recognized as a feasible and effective *** this strategy is still in the preclinical exploration stage,it is expected to achieve clinical translation in the future,creating a new field of molecular tar

关键词： blood-brain barrier cognitive dysfunction exosomes gene silencing immunotherapy inorganic nanomaterials liposome nanoparticles neuroinflammation polymer nanoparticles stem cells

Computational protein design and structure prediction—the 2024Nobel prize in chemistry

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Science China Chemistry 2025年

作者： Peilong lu Lei Liu School of Life Sciences and Research Center for Industries of the Future Westlake University Tsinghua-Peking Joint Center for Life Sciences Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Center for Synthetic and Systems Biology Department of Chemistry Tsinghua University

The 2024 Nobel prize in chemistry recognizes groundbreaking advancements in protein science, highlighting the power of artificial intelligence (AI) to decipher and design the molecular machinery of life. Half of the prize was awarded to David Baker for the computational design of proteins; the other to Demis Hassabis and John Jumper for their AI-driven predictions of protein structures. This article briefly reviews their achievements, and discusses the opportunities and directions that their work has enabled (Figure1).

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我国华南地区MuSK抗体阳性重症肌无力患者的临床特点

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中国神经免疫学和神经病学杂志 2020年第1期27卷 15-19页

作者：鲁亚茹欧昶毅邱力林中强黄志东刘卫彬中山大学附属第一医院神经科

目的分析我国华南地区骨骼肌特异性酪氨酸激酶抗体(MuSK-Ab)阳性重症肌无力(myasthenia gravis,MG)的临床特点。方法回顾性收集2017年8月至2019年8月在中山大学附属第一医院确诊的住院MuSK抗体阳性MG(MuSK-MG)患者26例,并选取同期收治... 详细信息

目的分析我国华南地区骨骼肌特异性酪氨酸激酶抗体(MuSK-Ab)阳性重症肌无力(myasthenia gravis,MG)的临床特点。方法回顾性收集2017年8月至2019年8月在中山大学附属第一医院确诊的住院MuSK抗体阳性MG(MuSK-MG)患者26例,并选取同期收治的乙酰胆碱受体抗体(AChR-Ab)阳性MG(AChR-MG)患者157例作为对照组,比较两组患者临床特点以及对治疗反应的差异。结果与AChR-MG患者比较,MuSK-MG患者女性构成(80.8%比58.0%,P0.05)。在治疗反应方面,胆碱酯酶抑制剂(AChEIs)对MuSK-MG患者的有效率低于AChR-MG患者(16.0%比58.6%,P<0.01)。两组患者发生MC期间,对血浆置换(PLEX)的反应优于静脉注射丙种球蛋白(IVIG)。结论我国华南地区MuSK-MG以40岁左右女性多见,与AChR-MG比较易累及球部肌和呼吸肌,容易发生MC。MuSK-MG对AChEIs的反应性低于AChR-MG。RNS对我国华南地区MuSK-MG诊断的敏感性与AChR-MG比较无统计学差异,但高于欧美人群。PLEX在MuSK-MG患者的危象前或危象状态中的应用可显著缓解病情。

关键词：重症肌无力 MuSK抗体乙酰胆碱受体抗体肌无力危象华南地区

First observation results of Macao Science Satellite-1 on lightning-induced electron precipitation

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Science China Earth Sciences 2025年第1期68卷 1-10页

作者： Yongping WANG Yixin SUN Qiugang ZONG Gaopeng lu Xudong GU Ze-Jun HU Bin LI Key Laboratory for Polar Science Ministry of Natural Resources Polar Research Institute of China Institute of Space Physics and Applied Technology Peking University State Key Laboratory of lunar and Planetary Science Macau University of Science and Technology School of Earth and Space Sciences University of Science and Technology of China School of Electronic Information Wuhan University

The Medium-energy Electron Spectrometers(MES) is a space-borne instrument onboard Macao Science Satellite-1(MSS-1) dedicated to monitoring the typical charged particle radiation characteristics in the satellite orbit and the process of their occurrence and development, including short bursts of lightning-induced electron precipitation(LEP).This paper presents the first results of the LEP measurements by the MSS-1.47 LEP events are identified with the routine operation for 3 months since satellite launch, all within the range of 1.5

关键词： Lightning-induced electron precipitation Inner radiation belts Energetic electrons Macao Science Satellite-1

Catalytic Performance of Carbon Smoke over Ag-LSCF Composite Catalysts

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 30-34页

作者： GUO Guanlun HAN Ming lu Shaomin YU Jing JU Hongling 无 Hubei Key Laboratory of Advanced Technology for Automotive Components&Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of TechnologyWuhan 430070China College of Mechanical and Transportation Southwest Forestry UniversityKunming 650000China

To improve the catalytic performance of La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3)(LSCF)towards carbon soot,we utilized the impregnation method to incorporate Ag into the prepared LSCF *** conducted a series of characterization tests and evaluated the soot catalytic activity of the composite catalyst by comparing it with the LaCoO_(3) group,LaFeO_(3) group,and catalyst-free *** results indicate that the Ag-LSCF composite catalyst exhibits the highest soot catalytic activity,with the characteristic temperature values of 376.3,431.1,and 473.9℃at 10%,50%,and 90%carbon soot conversion,*** values are 24.8,20.2,and 23.1℃lower than those of the LSCF *** also shows that LSCF can improve the catalytic activity of soot after compounding with Ag,and reflects the necessity of using catalysts in soot combustion *** characterization and BET test show that Ag-LSCF has more abundant surface-adsorbed oxygen species,larger specific surface area and pore volume than LSCF,which also proves that Ag-LSCF has higher soot catalytic activity.

关键词： metallic composites carbon smoke oxidation perovskite catalyst soot

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凤眼果的生药学研究

广西植物 2024年第6期44卷 1028-1041页

作者：彭晓祺吴文如来慧丽行冰楠陆亚茹邹何元广州中医药大学中药学院广州510006 广东食品药品职业学院广州510006

凤眼果具有温胃、杀虫等功效,其名称和性状易与苹婆属其他物种混淆,然而其相关研究基础比较薄弱。该研究对凤眼果性状、微性状、种子横切面及粉末显微特征进行观察;利用双向测序获取凤眼果DNA条形码序列ITS2、psb A-trn H、mat K、rbc L... 详细信息

凤眼果具有温胃、杀虫等功效,其名称和性状易与苹婆属其他物种混淆,然而其相关研究基础比较薄弱。该研究对凤眼果性状、微性状、种子横切面及粉末显微特征进行观察;利用双向测序获取凤眼果DNA条形码序列ITS2、psb A-trn H、mat K、rbc L,计算Kimura 2-Parameter(K2P)遗传距离,建立邻接系统进化树并进行聚类分析。结果表明:(1)凤眼果性状特征为外被深红色果皮,种子表面红褐色或暗栗色,质硬,内含浅黄色肥厚胚乳2片。(2)微性状特征为外种皮红褐色,极薄,质脆;中种皮黑褐色,较厚,质硬;内种皮浅黄色,质软。(3)显微特征为外种皮石细胞结构和排列方式、中种皮栅状细胞结构、内种皮细胞壁呈连珠状增厚、草酸钙簇晶。(4)基于ITS2序列可将凤眼果与苹婆属其他植物有效区分,mat K序列可将假苹婆与苹婆属其他植物有效区分。该研究获取的凤眼果性状、微性状及显微特征数据,结合ITS2条形码序列可有效鉴别凤眼果,为其资源开发及质量标准制定提供了科学依据。

关键词：凤眼果性状鉴别微性状鉴别显微鉴别 DNA条形码

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家蚕突变基因的分子解析研究进展

蚕学通讯 2024年第3期44卷 31-47页

作者：吴松原鹿亚如何松真代方银资源昆虫高效养殖与利用全国重点实验室/农业农村部蚕桑生物学与遗传育种重点实验室/西南大学蚕桑纺织与生物质科学学院重庆400715

家蚕属于完全驯化的昆虫,不仅是有超过5 000年养殖历史的重要经济动物,而且是遗传学等领域研究的优良材料。突变体是遗传研究的重要资源,在揭示遗传规律、基因功能、代谢通路、调控网络、分子机制等方面具有重要作用。家蚕突变类型丰富... 详细信息

家蚕属于完全驯化的昆虫,不仅是有超过5 000年养殖历史的重要经济动物,而且是遗传学等领域研究的优良材料。突变体是遗传研究的重要资源,在揭示遗传规律、基因功能、代谢通路、调控网络、分子机制等方面具有重要作用。家蚕突变类型丰富,已有超过600个孟德尔突变被描述。至今,已在分子水平鉴定了90余个突变基因,主要涉及卵色、体色、斑纹、体形、附肢、茧色及有关生理变异等。这些研究不乏具有独特而重要的科学发现,为蚕学、昆虫学及生命科学的发展作出了积极贡献。本文综述了家蚕突变基因的分子解析研究进展,以飨读者。

关键词：家蚕突变体分子基础基因鉴定

Distribution and mapping of temperate savanna in the sandy lands of eastern China

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Science China Earth Sciences 2025年第1期68卷 128-141页

作者： Xiaoya LI Feng WANG Tao DUAN Kaijie YANG Bin YANG Chunmei WANG Xin TIAN Qi lu Institute of Ecological Conservation and Restoration Institute of Desertification Studies Chinese Academy of Forestry Institute of Desertification Institute of Desertification Studies Chinese Academy of Forestry Institute of Great Green Wall Satellite Application Centre for Ecology and Environment MEE Institute of Microelectronics Chinese Academy of Sciences Aerospace Information Research Institute Chinese Academy of Sciences Institute of Forest Resource Information Techniques Chinese Academy of Forestry

Savannas are distributed globally across various *** perform a significant socioeconomic role in regulating net primary productivity and the terrestrial carbon *** to the high spatial heterogeneity induced by the mixed distribution of trees and grasses,current global land-cover classification maps often classify savannas as forests or grasslands Temperate savannas in China cover a vast area,yet their spatial patterns and extent remain poorly *** study developed a novel remote sensing temperate savannas mapping method by integrating very high-resolution （VHR） unmanned aerial vehicle （UAV） and GF-6 satellite imagery based on the vegetation structure characteristics of temperate savannas using the FAO definition of *** and validation datasets were collected from VHR UAV imagery covering the main temperate savannah types with a ground area of 1818 *** fractional woody vegetation cover （FWVC） and fractional herbaceous vegetation cover （FHVC） in temperate savannas were estimated by integrating Classification and Regression Tree and Random Forest *** current distribution of temperate savannas in the Horqin and Otindag Sandy Lands of Eastern China was mapped to a unit area of 0.5 *** root-mean-square error （RMSE） values for the FWVC and FHVC models were 10.69% and 11.67%,and the R2values were 0.66 and 0.63,*** assessment indicated that the new temperate savanna map had high identification accuracy,with a Kappa coefficient of 0.70,overall accuracy of 0.88,and average accuracy of *** savannas in the sandy lands of eastern China were primarily distributed in the northern Horqin Sandy Land the central and eastern regions of the Otindag Sandy Land,and the transition zone from the southern slopes of the Greater Khingan Mountains to the plains,covering a total area of 3.27×10～6 *** main savannah types were elm,oak/maple,and shrub *** savannas were widely distributed in the Otindag Sandy

关键词： Temperate savanna UAV imagery GF-6 Fractional woody vegetation cover Fractional herbaceous vegetation cover Machine learning

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Recent Strategies and Advances in Hydrogel‑Based Delivery Platforms for Bone Regeneration

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Nano-Micro Letters 2025年第3期17卷 389-439页

作者： Xiao Wang Jia Zeng Donglin Gan Kun Ling Mingfang He Jianshu Li Yongping lu Scientific and Technological Innovation Center for Biomedical Materials and Clinical Research Guangyuan Key Laboratory of Multifunctional Medical HydrogelGuangyuan Central HospitalGuangyuan 628000People’s Republic of China Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Bio‑Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023People’s Republic of China College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065People’s Republic of China

Bioactive molecules have shown great promise for effectively regulating various bone formation processes,rendering them attractive therapeutics for bone ***,the widespread application of bioactive molecules is limited by their low accumulation and short half-lives in *** have emerged as ideal carriers to address these challenges,offering the potential to prolong retention times at lesion sites,extend half-lives in vivo and mitigate side effects,avoid burst release,and promote adsorption under physiological *** review systematically summarizes the recent advances in the development of bioactive molecule-loaded hydrogels for bone regeneration,encompassing applications in cranial defect repair,femoral defect repair,periodontal bone regeneration,and bone regeneration with underlying ***,this review discusses the current strategies aimed at improving the release profiles of bioactive molecules through stimuli-responsive delivery,carrier-assisted delivery,and sequential ***,this review elucidates the existing challenges and future directions of hydrogel encapsulated bioactive molecules in the field of bone regeneration.

关键词： Hydrogel Bone regeneration Bioactive molecules Drug delivery Nano-/microscale carriers