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Hyperlanins A and B, Two Highly Rearranged Meroterpenoids from Hypericum lancasteri

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Chinese Journal of Chemistry 2024年第18期42卷 2180-2186页

作者： Jin-Qiu You yun-Qi Jin Meng-yu Li Bo-Chao Zhang xin-yu sun Chun-Yong Ding Jing-Ya Li Ai-Jun Hou Shanghai Frontiers Science Center of Drug Target Identification and Delivery School of Pharmaceutical SciencesShanghai Jiao Tong UniversityShanghai200240China National Key Laboratory of Innovative Immunotherapy Shanghai Jiao Tong UniversityShanghai 200240China Shanghai Jiao Tong University School of Medicine Shanghai 200025China Shanghai Institute of Materia Medica Chinese Academy of SciencesShanghai 201203China

Hyperlanins A(1)and B(2),two highly rearranged polycyclic polyprenylated acylphloroglucinol(PPAP)-related meroterpenoids based on different new carbon skeletons,were isolated from Hypericum *** 1 incorporates an unprecedented 5/6/7/5 ring system featuring a 3,13-dioxatetracyclo[9.***.1.12.5.01.8]pentadecane *** 2 possesses a unique compact 6/6/5/6/6/5/6 ring system with a caged tetracyclo[6.***.1.13.8.05,11]dodecane *** structures were established by spectroscopic data,X-ray diffraction,and computational *** compounds showed anti-inflammatory activity in *** 1 and 2 could decrease the lipopolysaccharide(LPS)-/nigericin-induced IL-1βrelease in THP-1 *** compounds also showed inhibition in hypoxia-inducible factor-1α(HIF-1αa)pathway luciferase reporter assay.

关键词： Natural products Hypericum lancasteri Meroterpenoids Structureelucidation Inflammation

cis-Clerodane Diterpenoids with Structural Diversity and Anti-inflammatory Activity from Tinospora crispa

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Chinese Journal of Chemistry 2022年第24期40卷 2882-2892,I0002页

作者： Jin-Qiu You Yi-Nan Liu Jun-Su Zhou xin-yu sun Chun Lei Qing Mu Jing-Ya Li Ai-Jun Hou School of Pharmacy Fudan UniversityShanghai201203 China School of Pharmacy Shanghai Jiao Tong UniversityShanghai200240 China Shanghai Institute of Materia Medica Chinese Academy of SciencesShanghai201203 China

Twelve new cis-clerodane diterpenoids, designated as crispinoids A—L (1—12), together with three known analogues (13—15), were isolated from Tinospora crispa. Their structures were fully assigned by comprehensive spectroscopic techniques, single-crystal X-ray diffraction experiments, and electronic circular dichroism (ECD) analyses. The isolated clerodanes displayed diverse heterocyclic frameworks including 6/6/6-, 6/5/6/6-, 6/6/5-, 6/6-, and 6/5/6-fused ring systems. Some of the isolates showed ATP-citrate lyase (ACLY) and nuclear factor kappa B (NF-κB) pathway inhibition. The NF-κB inhibitors further suppressed the lipopolysaccharide (LPS)-induced inflammatory responses in RAW 264.7 cells.

关键词： Natural products Structure elucidation Tinospora crispa ATP-citrate lyase Nuclear factor kappa B

3G Technology in the Wireless Communications

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3G Technology in the Wireless Communications

Randomized Clinical Trials of Traditional Chinese Medicines for Treating Ulcerative Colitis:A Scoping Review

2011 International Conference on Computer Science and Information Technology(ICCSIT 2011)

作者： xin-yu sun Wei Zhao School of Electronics and Information Engineering Jingchu University of Technology Jingmen Real Estate Management Bureau

ISBN: (纸本)9781510811249;1510811249

This article from the 3G technology development at home and abroad studies the basic features of 3G technology, including international standards and the leading technology of China Unicom. It discusses and analyzes the application of 3G technology, such as video calls, wireless Internet access and remote monitoring. Finally, it puts forward the growth trends of 3G technology in the future.

关键词： 3G mobile communication applications

来源： cnki会议评论

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World Journal of Traditional Chinese Medicine 2021年第3期7卷 326-331页

作者： You-You Zheng Xiao Wang Jiang-Tao Si yu-xin sun Wen-Bin Hou Jian-Ping Liu yuan-Xi Li Zhao-Lan Liu Center for Evidence-Based Chinese Medicine Beijing University of Chinese Medicine Special Treatment Center Wang Jing Hospital of Chinese Academy of Traditional Chinese Medicine College of Statistics and Data Science Faculty of ScienceBeijing University of TechnologyBeijing 100124China

Objective:Traditional Chinese medicines(TCMs)are efficacious against ulcerative colitis(UC).In recent years,the number of randomized clinical trials(RCTs)of TCM has ***,it is very important to summarize the basic characteristics,quality,and types of TCM interventions in published *** scoping review was performed to systematically identify and describe the current situations about RCTs of TCMs for treating *** to express the focus and specifics of nowadays research in TCM interventions in RCTs and evaluate their common disadvantages exposed to help advance in TCM *** and Methods:A scoping review was conducted according to the PRISMA extension for scoping *** searched two English databases and four Chinese databases from the date of establishment of each database to January *** from RCTs focusing on any TCM treatment for patients with UC were extracted and *** and characterization were performed by two independent reviewers using predefined *** discrepancies were resolved by consensus discussion with a third *** Excel 2010 was used to extract the following data from the included studies:(1)basic information of the included studies including research ID,article title,publication language,journal,year of publication,and funding information;(2)patient information including gender,age,disease course,disease stage,severity,sample size;and(3)information on intervention measures,types of intervention measures,drug dosage forms,and treatment ***:The search identified 2225 RCTs published between1987 and *** studies covered 36 provinces in *** time frame of the RCTs was<28 days in approximately one-third of the RCTs(647,29.08%).Only one RCT was published in *** three-quarters of RCTs(1665,74.83%)did not report the severity of the *** types of interventions were included in the RCTs:pharmacotherapy(2028,91.15%),nonpharmacotherapy(57,2.56%),and a

关键词： Dosage forms randomized clinical trial research status scoping review Traditional Chinese medicine ulcerative colitis

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Targeting TrkB–PSD-95 coupling to mitigate neurological disorders

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Neural Regeneration Research 2025年第3期20卷 715-724页

作者： xin Yang yu-Wen Alvin Huang John Marshall Department of Molecular Biology Cell Biology and BiochemistryBrown UniversityProvidenceRIUSA Department of Neurology Warren Alpert Medical School of Brown UniversityProvidenceRIUSA Center for Translational Neuroscience Robert J.and Nancy D.Carney Institute for Brain Science and Brown Institute for Translational ScienceBrown UniversityProvidenceRIUSA

Tropomyosin receptor kinase B(TrkB)signaling plays a pivotal role in dendritic growth and dendritic spine formation to promote learning and *** activity-dependent release of brain-derived neurotrophic factor at synapses binds to pre-or postsynaptic TrkB resulting in the strengthening of synapses,reflected by long-term ***,the association of postsynaptic density protein-95 with TrkB enhances phospholipase Cγ-Ca^(2+)/calmodulin-dependent protein kinaseⅡand phosphatidylinositol 3-kinase-mechanistic target of rapamycin signaling required for long-term *** this review,we discuss TrkB-postsynaptic density protein-95 coupling as a promising strategy to magnify brain-derived neurotrophic factor signaling towards the development of novel therapeutics for specific neurological disorders.A reduction of TrkB signaling has been observed in neurodegenerative disorders,such as Alzheimer's disease and Huntington's disease,and enhancement of postsynaptic density protein-95 association with TrkB signaling could mitigate the observed deficiency of neuronal connectivity in schizophrenia and *** with brain-derived neurotrophic factor is problematic,due to poor pharmacokinetics,low brain penetration,and side effects resulting from activation of the p75 neurotrophin receptor or the truncated TrkB.T1 *** TrkB agonists and antibodies that activate TrkB are being intensively investigated,they cannot distinguish the multiple human TrkB splicing isoforms or cell type-specific *** TrkB–postsynaptic density protein-95 coupling provides an alternative approach to specifically boost TrkB signaling at localized synaptic sites versus global stimulation that risks many adverse side effects.

关键词： Angelman syndrome autism brain-derived neurotrophic factor depression neurodegenerative disorder neurodevelopmental disorder postsynaptic density protein-95 synaptic plasticity TrkB

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The Report of Virtual Exhibition Software Development

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Wuhan University Journal of Natural Sciences 2001年第Z1期6卷 340-346页

作者： yu Jian xin 1, sun yuan hao 1, Gong Zhen yu 2, Cao Jing 2 1. State Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210093, China 2. Department of Computer Science and Technology, Nanjing University,Nanjing 210093, China State Key Laboratory for Novel Software Technology Nanjing University Nanjing 210093 China

The main structure and key techniques of our Virtual Exhibition Software are summarized. It demonstrates the practice of Software Engineering during the development of our project and discusses the use of UML in it.

关键词： software engineering software process software quality assurance software configuration management software configuration item UML virtual reality

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Inter‑Skeleton Conductive Routes Tuning Multifunctional Conductive Foam for Electromagnetic Interference Shielding,Sensing and Thermal Management

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Nano-Micro Letters 2025年第3期17卷 19-36页

作者： Xufeng Li Chunyan Chen Zhenyang Li Peng Yi Haihan Zou Gao Deng Ming Fang Junzhe He xin sun Ronghai yu Jianglan Shui Caofeng Pan Xiaofang Liu School of Materials Science and Engineering Beihang UniversityBeijing 100191People’s Republic of China Institute of Atomic Manufacturing Beihang UniversityBeijing 100191People’s Republic of China Tianmushan Laboratory Xixi Octagon CityYuhang DistrictHangzhou 310023People’s Republic of China Science and Technology On Electromagnetic Scattering Laboratory Beijing Institute of Environmental FeaturesBeijing 100854People’s Republic of China

Conductive polymer foam(CPF)with excellent compressibility and variable resistance has promising applications in electromagnetic interference(EMI)shielding and other integrated functions for wearable ***,its insufficient change amplitude of resistance with compressive strain generally leads to a degradation of shielding performance during ***,an innovative loading strategy of conductive materials on polymer foam is proposed to significantly increase the contact probability and contact area of conductive components under *** inter-skeleton conductive films are constructed by loading alginate-decorated magnetic liquid metal on the polymethacrylate films hanged between the foam skeleton(denoted as AMLM-PM foam).Traditional point contact between conductive skeletons under compression is upgraded to planar contact between conductive ***,the resistance change of AMLM-PM reaches four orders of magnitude under ***,the inter-skeleton conductive films can improve the mechanical strength of foam,prevent the leakage of liquid metal and increase the scattering area of EM ***-PM foam has strain-adaptive EMI shielding performance and shows compression-enhanced shielding effectiveness,solving the problem of traditional CPFs upon *** upgrade of resistance response also enables foam to achieve sensitive pressure sensing over a wide pressure range and compression-regulated Joule heating function.

关键词： Inter-skeleton conductive films Conductive polymer foam Liquid metal Electromagnetic interference shielding

Boosting bidirectional sulfur conversion enabled by introducing boron-doped atoms and phosphorus vacancies in Ni2P for lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： Lin Peng yu Bai Hang Li Meixiu Qu Zhenhua Wang Kening sun Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing Key Laboratory of Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology

Lithium-sulfur （Li-S） batteries have gained great attention due to the high theoretical energy density and low cost,yet their further commercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni2P by concurrently introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides （LiPSs） as well as expediting the bidirectional conversion kinetics of sulfur ***,theoretical calculations reveal that the incorporation of B-doped atoms and P vacancies in Ni2P selectively promotes Li2S dissolution and nucleation ***,the Li-S batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 C and high areal capacity of 8.03 mA h cm-2under E/S of 5μL mg-1and sulfur loading of 7.20 mg *** work elucidates that introducing heteroatom and vacancy in metal phosphide collaboratively regulates the electron structure to accelerate bidirectional sulfur conversion.

关键词： Lithium sulfur batteries

Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-Hui Chen Zuo-Tang Liang yu-Gang Ma xin-Li Sheng Qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation