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Protective effects of Wuwei Xiaodu Drink against chronic osteomyelitis through Foxp3^(+)CD25^(+)CD4^(+) Treg cells via the IL-2/STAT5 signaling pathway

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Chinese Journal of Natural Medicines 2022年第3期20卷 185-193页

作者： HUANG Kai REN Hai-Yong LIN Bing-Yuan liu yi-yang GUO Qiao-Feng Department of Orthopedics Tongde Hospital of Zhejiang ProvinceHangzhou 310012China

To explore the effectiveness and safety of a Chinese medicinal decoction Wuwei Xiaodu Drink(WWXDD)in inhibiting chronic osteomyelitis via regulatory T cells signaling.The effective constitutes of WWXDD and osteomyelitis related genes were screened.Target proteins were cross-validated using the Venny database.GO function and KEGG pathway analysis were performed for target proteins,while pharmacological network was constructed.The bone properties were analyzed by HE staining and the concentrations of immune factors were measured by ELISA.The expression of CTLA-4 and Foxp3 mRNA and STAT5,p-STAT5,CTLA-4 and Foxp3 protein were detected using Real-time PCR and Western blot,respectively.FACS was used to analyze the percentages of cells.A total of 117 genes overlapped between 785 target genes of the active compounds of WWXDD and 912 osteomyelitis related genes.Inflammation-related genes,including IL-6,TNFα,IL-1βand IL-2 showed high connection degree in the drug-compound-disease-target network.GO function and KEGG pathway analysis revealed that 117 intersection genes mainly enriched in virus infection related pathways,immune related pathways and chemokine signaling pathway.Furthermore,the development of chronic osteomyelitis was suppressed in model rats after treatment with WWXDD.Meanwhile,the concentrations of IL-2 and CD4^(+)CD25^(+)Foxp3 Treg perr centages together with the levels of p-STAT5,CTLA-4 and Foxp3 were also down-regulated.Furthermore,IL-2 and WWXDD drug-containing serum exhibited opposite effects on regulating IL-2,IL-10,TGF-β1,Foxp3,CTLA4 and STAT5.In addition,a STAT5 phosphorylation inhibitor suppressed the expression of Foxp3 and CTLA-4.WWXDD can treat chronic osteomyelitis through suppressing the main regulating factors of Tregs and interfere its immunodepression.Our results bring a new solution for chronic osteomyelitis.

关键词： Chronic osteomyelitis Tregs Immunodepression Wuwei Xiaodu Drink

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什么样的制度产生高人力资本经济增长效应?——一个基于动态QCA方法的研究

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科学学研究 2024年第2期42卷 289-299,334页

作者：王颖刘艺扬北京师范大学政府管理学院北京100875

人力资本是促进经济增长的关键因素,如何优化制度以提高人力资本的经济增长效应是各地“抢人大战”之后最应该关注的问题。本文提出了影响人力资本经济增长的制度框架,即“积累—配置—创新”制度框架。在此基础上,基于动态的汇总型fsQC... 详细信息

人力资本是促进经济增长的关键因素,如何优化制度以提高人力资本的经济增长效应是各地“抢人大战”之后最应该关注的问题。本文提出了影响人力资本经济增长的制度框架,即“积累—配置—创新”制度框架。在此基础上,基于动态的汇总型fsQCA方法使用2001-2017年的省际数据,对推动人力资本经济增长效应提升的制度组态模式进行了分析。研究发现:(1)积累制度、配置制度和创新制度均不是高人力资本经济增长效应的必要条件。(2)推动人力资本经济增长效应提升的制度组态模式有4种,即配置-创新型制度组态、积累-创新型制度组态、创新型制度组态以及均衡型制度组态。(3)即使配置制度和积累制度缺失,创新制度的完善也能拉动人力资本的经济增长效应。(4)在多时段比较分析中,发现多重轨迹演化的现象,创新型制度组态的变化轨迹是“主导轨迹”、配置型制度组态的变化轨迹是“缓冲主导轨迹”、积累-创新型制度组态的变化轨迹是“转折轨迹”。区别于静态的组态视角,本文从复杂动态视角出发,既拓展了人力资本经济增长效应的研究视野,也为如何完善高人力资本经济效应的制度环境提供了新的思考。

关键词：动态QCA AAI制度框架人力资本经济增长效应多重轨迹动态组态理论

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慢性骨髓炎患者骨组织的转录组特征分析

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中国骨伤 2024年第5期37卷 519-526页

作者：张扬刘亦杨沈立锋林炳远寿旦郭峭峰张春浙江中医药大学附属第一医院浙江省中医院骨伤研究所浙江杭州310053 南京中医药大学中西医结合临床医学院南京鼓楼医院江苏南京210008 浙江省立同德医院骨伤科浙江杭州310012 浙江大学医学院附属邵逸夫医院骨科浙江杭州310005 浙江中医药大学药学院浙江杭州310053

目的:采集和分析慢性骨髓炎患者骨组织的转录组信息,为探究慢性骨髓炎发病的分子机制,明确MAPK信号通路在慢性骨髓炎发病过程中的作用。方法:收集2019年6月至2020年6月就诊的四肢创伤性骨髓炎4例,病灶骨样本(Necrosis组)以及正常骨组织(... 详细信息

目的:采集和分析慢性骨髓炎患者骨组织的转录组信息,为探究慢性骨髓炎发病的分子机制,明确MAPK信号通路在慢性骨髓炎发病过程中的作用。方法:收集2019年6月至2020年6月就诊的四肢创伤性骨髓炎4例,病灶骨样本(Necrosis组)以及正常骨组织(Control组),使用Illumina HiSeq Xten高通量测序平台采集转录组信息,并采用FPKM方法计算基因在骨组织中的表达量。通过对比病灶组织与正常组织的转录本水平,筛选差异基因,并进行GO富集和KEGG富集。采用大鼠骨髓炎动物模型,选取细胞外信号调节酶MAP3K7(mitogen-activated protein 3kinase 7)、活化T细胞核因子1 (nuclear factor of activated T cells 1,NFATC1)做差异靶点的免疫组化学的验证。结果:高通量测序共获得5 548个差异基因,其中Necrosis组上调2 701个,下调2 847个。筛选正常骨组织和病灶骨的差异基因中富集到MAPK信号通路的基因,并与破骨细胞分化(osteoclast differentiation)信号通路相关的基因取交集,共有基因为核因子κB激酶亚基β抑制剂IκBKβ(inhibitor of nuclear factor kappa B kinase subunit beta)、MAP3K7、NFATC1、核因子κB亚基2(nuclear factor kappa B subunit 2,NFκB2)。在大鼠骨髓炎模型中,MAP3K7、NFATC1在骨髓以及损伤骨组织周围高表达。结论:基于转录组学分析显示慢性骨髓炎的发病和MAPK信号通路相关,IκBKβ、MAP3K7、NFATC1、NFκB2有可能成为新的临床诊断和疾病治疗的靶点。

关键词：转录组学慢性骨髓炎 MAPK信号通路破骨细胞分化信号通路

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平面并联机器人离线PID控制优化研究

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机械设计与制造 2024年第5期399卷 156-160页

作者：刘一扬王春燕郑州财经学院机电与汽车工程学院河南郑州450000 河北轨道运输职业技术学院机电系河北石家庄050000

为了使平面并联机器人在闭环控制系统中具有更稳定的控制性能。对此,这里构建了平面五杆并联机器人动力学模型及其控制系统模型,给出了控制系统的增益矢量p。对机器人系统模型进行离线PID控制优化,通过控制增益来设计控制系统中的增益矢... 详细信息

为了使平面并联机器人在闭环控制系统中具有更稳定的控制性能。对此,这里构建了平面五杆并联机器人动力学模型及其控制系统模型,给出了控制系统的增益矢量p。对机器人系统模型进行离线PID控制优化,通过控制增益来设计控制系统中的增益矢量p,从而实现非线性单目标动态优化(NLMODOP)。在NLMODOP中加入动态约束,采用带约束处理机制的差分进化(DE)算法求解平面并联机器人的非线性规划问题,进而处理不稳定的动态优化。对机器人模型中的五个连杆进行仿真实验,并对有无DE算法控制的仿真结果进行了比较。结果表明:相比于无DE算法,采用DE算法下的机器人系统模型的连杆跟踪位移基本无跟踪误差。说明基于差分进化算法的平面并联机器人离线PID控制优化具有较好的控制精度和跟踪性能。

关键词：平面五杆并联机器人离线PID控制优化非线性单目标动态优化差分进化算法

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肺表面活性物质联合布地奈德对新生儿急性呼吸窘迫综合征氧合及临床结局的影响

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解放军医学杂志 2024年第3期49卷 259-264页

作者：刘忆阳章容赵帅康兰雷小平董文斌西南医科大学附属医院新生儿科/四川省出生缺陷临床研究中心四川泸州646000

目的探讨肺表面活性物质(PS)联合布地奈德对新生儿急性呼吸窘迫综合征(ARDS)氧合和临床结局的改善作用。方法本研究为一项历史对照试验。纳入西南医科大学附属医院新生儿科收治的生后3d内转入科室,且需要有创呼吸机辅助通气和PS替代治疗... 详细信息

目的探讨肺表面活性物质(PS)联合布地奈德对新生儿急性呼吸窘迫综合征(ARDS)氧合和临床结局的改善作用。方法本研究为一项历史对照试验。纳入西南医科大学附属医院新生儿科收治的生后3d内转入科室,且需要有创呼吸机辅助通气和PS替代治疗的ARDS患儿,将2022年1-11月采用0.25mg/kg布地奈德联合200mg/kgPS混合后气管内滴注,并雾化布地奈德(0.25mg/kg,2次/d)至撤机的患儿作为干预组(PS+布地奈德组,n=35),与仅接受200mg/kgPS气管内滴注的历史队列(2020年1月-2021年12月,PS组,n=35)进行比较。记录两组患儿的性别、分娩方式、1min及5minApgar评分、出生体重、胎龄、发病时间、发病原因等基线资料;比较两组患儿的氧合功能和临床结局,包括:(1)动脉血气分析指标,如治疗前和治疗6、12、24h后动脉血氧分压(PaO2)和氧合指数(OI);(2)临床观察评价指标,如撤机时间、总用氧时间、住院时间、治疗72h后肺部影像学改善情况、是否反复使用PS;(3)实验室检测指标,如治疗前和治疗3、7d后外周血白细胞计数(WBC)、中性粒细胞计数(NEU)、降钙素原(PCT);(4)并发症[如颅内出血、消化道出血、新生儿坏死性小肠结肠炎(NEC)、高血糖]发生情况、体重增长情况及病死率。结果两组患儿的基线资料比较差异无统计学意义(P>0.05)。与治疗前比较,两组患儿治疗6、12、24h后PaO2逐渐升高,且PS+布地奈德组明显高于PS组,差异均有统计学意义(P0.05)。治疗3、7d后PS+布地奈德组外周血NEU明显高于PS组,差异有统计学意义(P0.05)。结论PS联合布地奈德能更好地改善ARDS新生儿的氧合,促进肺部炎症吸收,缩短撤机时间、总用氧时间及住院时间,且无布地奈德使用相关的短期并发症。

关键词：肺表面活性物质布地奈德急性呼吸窘迫综合征新生儿

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A stable staggered-grid finite-difference scheme for acoustic modeling beyond conventional stability limit

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Petroleum Science 2024年第1期21卷 182-194页

作者： Jing-yi Xu yang liu National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing 102249China China University of Petroleum(Beijing) Karamay CampusKaramay 834000XinjiangChina

Staggered-grid finite-difference(SGFD)schemes have been widely used in acoustic wave modeling for geophysical problems.Many improved methods are proposed to enhance the accuracy of numerical modeling.However,these methods are inevitably limited by the maximum Courant-Friedrichs-Lewy(CFL)numbers,making them unstable when modeling with large time sampling intervals or small grid spacings.To solve this problem,we extend a stable SGFD scheme by controlling SGFD dispersion relations and maximizing the maximum CFL numbers.First,to improve modeling stability,we minimize the error between the FD dispersion relation and the exact relation in the given wave-number region,and make the FD dispersion approach a given function outside the given wave-number area,thus breaking the conventional limits of the maximum CFL number.Second,to obtain high modeling accuracy,we use the SGFD scheme based on the Remez algorithm to compute the FD coefficients.In addition,the hybrid absorbing boundary condition is adopted to suppress boundary reflections and we find a suitable weighting coefficient for the proposed scheme.Theoretical derivation and numerical modeling demonstrate that the proposed scheme can maintain high accuracy in the modeling process and the value of the maximum CFL number of the proposed scheme can exceed that of the conventional SGFD scheme when adopting a small maximum effective wavenumber,indicating that the proposed scheme improves stability during the modeling.

关键词： Acoustic wave Staggered-grid finite-difference(SGFD) modeling Courant-friedrichs-lewy(CFL)number Stability

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Enhancing competency of clinical research nurses:A comprehensive training and evaluation framework

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World Journal of Clinical Cases 2024年第7期12卷 1378-1381页

作者： yang-Xi liu yi Xu Tumor Interventional Department Taizhou Municipal HospitalTaizhou 318099Zhejiang ProvinceChina

The Sun et al's training program for clinical research nurses(CRNs)in the World Journal of Clinical Cases is a comprehensive and scientific approach.It includes structured frameworks for CRN training,aiming to improve CRN competency.This program emphasizes practical abilities,updates training content,and improves evaluation methods.The cultivation of CRN talents focuses on enhancing the training system,establishing a multifaceted evaluation framework,and continuously refining the training programs.Regular feedback and evalua-tion are essential to improve CRNs'competency in practical settings.

关键词： Clinical research nurse Framework Nurse Operations Practice Structure

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Targeting ferroptosis and ferritinophagy:new targets for cardiovascular diseases

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第1期25卷 1-22页

作者： yi LUAN yang yang ying LUAN Hui liu Han XING Jinyan PEI Hengdao liu Bo QIN Kaidi REN Clinical Systems Biology Research Laboratories Translational Medicine Centerthe First Affiliated Hospital of Zhengzhou UniversityZhengzhou450052China State Key Laboratory for Artificial Microstructures and Mesoscopic Physics School of PhysicsPeking UniversityBeijing100871China School of Laboratory Medicine Xinxiang Medical UniversityXinxiang453003China Quality Management Department Henan No.3 Provincial People’s HospitalZhengzhou450052China Department of Cardiology the First Affiliated Hospital of Zhengzhou UniversityZhengzhou450052China Center for Translational Medicine the First Affiliated Hospital of Zhengzhou UniversityZhengzhou450052China Department of Pharmacy the First Affiliated Hospital of Zhengzhou UniversityZhengzhou450052China Henan Key Laboratory of Precision Clinical Pharmacy Zhengzhou UniversityZhengzhou450052China Henan Engineering Research Center for Application&Translation of Precision Clinical Pharmacy Zhengzhou UniversityZhengzhou450052China

Cardiovascular diseases(CVDs)are a leading factor driving mortality worldwide.Iron,an essential trace mineral,is important in numerous biological processes,and its role in CVDs has raised broad discussion for decades.Iron-mediated cell death,namely ferroptosis,has attracted much attention due to its critical role in cardiomyocyte damage and CVDs.Furthermore,ferritinophagy is the upstream mechanism that induces ferroptosis,and is closely related to CVDs.This review aims to delineate the processes and mechanisms of ferroptosis and ferritinophagy,and the regulatory pathways and molecular targets involved in ferritinophagy,and to determine their roles in CVDs.Furthermore,we discuss the possibility of targeting ferritinophagy-induced ferroptosis modulators for treating CVDs.Collectively,this review offers some new insights into the pathology of CVDs and identifies possible therapeutic targets.

关键词： Cardiovascular disease Iron Ferroptosis Ferritinophagy Therapeutic target

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Multi-UAVs Collaborative Path Planning in the Cramped Environment

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IEEE/CAA Journal of Automatica Sinica 2024年第2期11卷 529-538页

作者： Siyuan Feng Linzhi Zeng Jining liu yi yang Wenjie Song School of Automation Beijing Institute of TechnologyNanjing 210039China Nanjing Research Institute of Electronics Technology Nanjing 210039China yichang Testing Technique Research Institute Yichang 443003China IEEE

Due to its flexibility and complementarity, the multiUAVs system is well adapted to complex and cramped workspaces, with great application potential in the search and rescue(SAR) and indoor goods delivery fields. However, safe and effective path planning of multiple unmanned aerial vehicles(UAVs)in the cramped environment is always challenging: conflicts with each other are frequent because of high-density flight paths, collision probability increases because of space constraints, and the search space increases significantly, including time scale, 3D scale and model scale. Thus, this paper proposes a hierarchical collaborative planning framework with a conflict avoidance module at the high level and a path generation module at the low level. The enhanced conflict-base search(ECBS) in our framework is improved to handle the conflicts in the global path planning and avoid the occurrence of local deadlock. And both the collision and kinematic models of UAVs are considered to improve path smoothness and flight safety. Moreover, we specifically designed and published the cramped environment test set containing various unique obstacles to evaluating our framework performance thoroughly. Experiments are carried out relying on Rviz, with multiple flight missions: random, opposite, and staggered, which showed that the proposed method can generate smooth cooperative paths without conflict for at least 60 UAVs in a few minutes.The benchmark and source code are released in https://***/inin-xingtian/multi-UAVs-path-planner.

关键词： Collision avoidance conflict resolution multi-unmanned aerial vehicles(UAVs)system path planning

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Versatile MXene Gels Assisted by Brief and Low‑Strength Centrifugation

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Nano-Micro Letters 2024年第5期16卷 231-247页

作者： Weiyan Yu yi yang Yunjing Wang Lulin Hu Jingcheng Hao Lu Xu Weimin liu State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000People’s Republic of China Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai Yantai 264006People’s Republic of China Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials Shandong UniversityJinan 250100People’s Republic of China

Due to the mutual repulsion between their hydrophilic surface terminations and the high surface energy facilitating their ran-dom restacking,2D MXene nanosheets usually cannot self-assemble into 3D macroscopic gels with various applications in the absence of proper linking agents.In this work,a rapid spontaneous gelation of Ti3C2Tx MXene with a very low dispersion concentration of 0.5 mg mL^(-1) into multifunctional architectures under moderate centrifugation is illustrated.The as-prepared MXene gels exhibit reconfigurable internal structures and tunable rheological,tribological,electrochemical,infrared-emissive and photothermal-conversion properties based on the pH-induced changes in the surface chemistry of Ti_(3)C_(2)T_(x) nanosheets.By adopting a gel with optimized pH value,high lubrication,exceptional specific capacitances(~635 and~408 F g^(-1) at 5 and 100 mV s^(-1),respectively),long-term capacitance retention(~96.7%after 10,000 cycles)and high-precision screen-or extrusion-printing into different high-resolution anticounterfeiting patterns can be achieved,thus displaying extensive potential applications in the fields of semi-solid lubrication,control-lable devices,supercapacitors,information encryption and infrared camouflaging.

关键词： MXene Centrifugation-assisted rapid gelation Lubrication Supercapacitor Anti-counterfeiting applications

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