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电针预处理对急性心肌缺血再灌注损伤大鼠心肌组织水通道蛋白1表达及蛋白激酶C活性的影响

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中国针灸 2017年第2期37卷 157-161页

作者：蔡荣林胡玲申国明余情王洁吴子建李梦安徽中医药大学针灸经络研究所合肥230038

目的:探讨电针"内关"与"太渊"穴预处理对急性心肌缺血再灌注损伤大鼠心肌的保护效应差异及部分作用机制。方法:96只Wistar大鼠随机分为假手术组、模型组、内关组、太渊组,每组24只。内关组与太渊组大鼠分别选取"内关"与"太渊"穴进行电... 详细信息

目的:探讨电针"内关"与"太渊"穴预处理对急性心肌缺血再灌注损伤大鼠心肌的保护效应差异及部分作用机制。方法:96只Wistar大鼠随机分为假手术组、模型组、内关组、太渊组,每组24只。内关组与太渊组大鼠分别选取"内关"与"太渊"穴进行电针预处理,刺激电流1mA,频率2Hz,每次20min,每日1次,共干预7d。假手术组、模型组固定相同时间,不予电针干预。模型组、内关组、太渊组大鼠在末次电针24h后进行心肌缺血再灌注模型复制,假手术组在开胸后仅在相应部位用针空穿1次,不进行结扎。分别检测各组大鼠心肌缺血面积、梗死面积,心肌组织蛋白激酶C(protein kinase C,PKC)活性及水通道蛋白1(aquaporin 1,AQP1)表达情况。结果:模型组大鼠的心肌缺血面积、梗死面积、AQP1蛋白表达及PKC的活性显著升高,与假手术组比较差异均有统计学意义(均P<0.01),内关组大鼠的心肌缺血面积、梗死面积、PKC的活性和AQP1蛋白表达较模型组和太渊组均显著减少(P<0.01,P<0.05)。经Pearson相关分析,电针预处理后急性心肌缺血再灌注损伤大鼠心肌组织AQP1蛋白表达和PKC活性的变化呈显著正相关。结论:电针"内关"穴预处理可显著降低急性心肌缺血再灌注损伤大鼠心肌组织AQP1蛋白表达和PKC活性,其作用机制可能是通过抑制PKC活化进而抑制AQP1蛋白表达,从而发挥其心肌保护效应。

关键词：急性心肌缺血再灌注损伤电针预处理水通道蛋白1 蛋白激酶C

Hourglass-GCN for 3D Human Pose Estimation Using Skeleton Structure and View Correlation

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Computers, Materials & Continua 2025年第1期82卷 173-191页

作者： Ange Chen Chengdong wu Chuanjiang Leng Faculty of Robot Science and Engineering Northeastern UniversityShenyang110169China

Previous multi-view 3D human pose estimation methods neither correlate different human joints in each view nor model learnable correlations between the same joints in different views explicitly,meaning that skeleton structure information is not utilized and multi-view pose information is not completely ***,existing graph convolutional operations do not consider the specificity of different joints and different views of pose information when processing skeleton graphs,making the correlation weights between nodes in the graph and their neighborhood nodes *** Graph Convolutional Networks(GCNs)cannot extract global and deeplevel skeleton structure information and view correlations *** solve these problems,pre-estimated multiview 2D poses are designed as a multi-view skeleton graph to fuse skeleton priors and view correlations explicitly to process occlusion problem,with the skeleton-edge and symmetry-edge representing the structure correlations between adjacent joints in each viewof skeleton graph and the view-edge representing the view correlations between the same joints in different *** make graph convolution operation mine elaborate and sufficient skeleton structure information and view correlations,different correlation weights are assigned to different categories of neighborhood nodes and further assigned to each node in the *** on the graph convolution operation proposed above,a Residual Graph Convolution(RGC)module is designed as the basic module to be combined with the simplified Hourglass architecture to construct the Hourglass-GCN as our 3D pose estimation ***-GCNwith a symmetrical and concise architecture processes three scales ofmulti-viewskeleton graphs to extract local-to-global scale and shallow-to-deep level skeleton features *** results on common large 3D pose dataset Human3.6M and MPI-INF-3DHP show that Hourglass-GCN outperforms some excellent methods in 3D pose estimati

关键词： 3D human pose estimation multi-view skeleton graph elaborate graph convolution operation Hourglass-GCN

硒化甘草多糖联合抗生素体外抑菌作用及体内免疫调节作用研究

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中国兽医科学 2021年第1期51卷 126-134页

作者：王丹阳朱晓庆谷新利王蒙蒙孙国结武梦丽王虹丁艳罗燕连科迅石河子大学动物科技学院新疆石河子830002

旨在研究硒化新疆乌拉尔甘草多糖(Se GUP)对大肠杆菌、金黄色葡萄球菌是否有较好的体外抑菌作用,与抗菌药物联合使用是否能够增强抗菌药物的抑菌效果及其免疫相关活性研究。采用微量法检测Se GUP与抗生素的最小抑菌浓度(MIC),筛选出3种... 详细信息

旨在研究硒化新疆乌拉尔甘草多糖(Se GUP)对大肠杆菌、金黄色葡萄球菌是否有较好的体外抑菌作用,与抗菌药物联合使用是否能够增强抗菌药物的抑菌效果及其免疫相关活性研究。采用微量法检测Se GUP与抗生素的最小抑菌浓度(MIC),筛选出3种较为敏感的常用抗生素;采用棋盘法测算出Se GUP与所筛选的对细菌敏感的抗生素进行联合后的FIC指数,判定Se GUP与抗生素联合作用性质;采用EliSA法,测定不同剂量Se GUP组小鼠血清中Ig G、IL-1、IL-2含量,确定其免疫活性调节作用。体外抑菌试验结果表明,Se GUP对金黄色葡萄球菌、大肠杆菌均有一定的抑制作用,其MIC值分别为100、200 mg/mL;头孢噻呋钠、卡那霉素与Se GUP联合作用后,对金黄色葡萄球菌、大肠杆菌耐药菌株均表现为一定的相加作用,其MIC值分别降低到25、50、50、50 mg/mL,而与恩诺沙星进行联合后的抑菌效果并不明显,对金黄色葡萄球菌、大肠杆菌耐药菌株表现为无关作用。免疫试验结果表明,不同剂量的Se GUP对小鼠血清中Ig G、IL-1和IL-2的含量均有不同程度的提高作用,其中,高、中剂量组的Se GUP的提高作用显著(P<0.05),与免疫抑制组相比差异极显著(P<0.01)。由此可知,一定剂量的Se GUP与头孢噻呋钠、卡那霉素联合后,对大肠杆菌、金黄色葡萄球菌具有较好的抑菌效果的同时,能减少抗生素的使用剂量,并且Se GUP能提高小鼠血清中相关细胞因子含量,增强机体免疫力。本次试验结果为充分挖掘中药中有效成分提供了更多理论依据,为寻找更多有效防治金黄色葡萄球菌、大肠杆菌病的药物组合和对抗及减缓多重耐药菌株出现提供了新思路。

关键词：硒化新疆乌拉尔甘草多糖体外抑菌联合用药免疫调节

Brain-derived neurotrophic factor plays with TRiC:focus on synaptic dysfunction in Huntington’s disease

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Neural Regeneration Research 2025年第10期20卷 2919-2920页

作者： Yingli Gu Kijung Sung Chengbiao wu Department of Neurosciences University of California San DiegoLa JollaCAUSA

Brain-derived neurotrophic factor(BDNF)exerts pleiotropic effects on brain processes including psychiatric disorders,aging,neurodegeneration,and metabolic homeostasis.A simple PubMed search using the key word“BDNF,”to date,yields over 33,000 *** fundamental biology to potential therapeutic applications,BDNF has clearly garnered extensive and significant attention in the field of neurobiology research.

关键词： Huntington homeostasis therapeutic

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时标上三阶阻尼动力系统的振动性与渐近性

科学技术与工程 2009年第7期9卷 1817-1819页

作者：武利猛杨军张珍燕山大学理学院秦皇岛066004 河北省数学研究中心石家庄050000

研究了时标上带有阻尼项的非线性三阶动力系统的振动性与渐近性,建立了若干判别准则,并通过例子阐述了主要结果。

关键词：时标阻尼振动性渐近性

High-dose dexamethasone regulates microglial polarization via the GR/JAK1/STAT3 signaling pathway after traumatic brain injury

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Neural Regeneration Research 2025年第9期20卷 2611-2623页

作者： mengshi Yang Miao Bai Yuan Zhuang Shenghua Lu Qianqian Ge Hao li Yu Deng Hongbin wu Xiaojian Xu Fei Niu Xinlong Dong Bin Zhang Baiyun liu Beijing Tiantan Hospital Capital Medical UniversityBeijingChina Department of Neurology The First Hospital of Tsinghua UniversityBeijingChina Department of Neurotrauma and Beijing Key Laboratory of Central Nervous System Injury Beijing Neurosurgical InstituteCapital Medical UniversityBeijingChina Department of Critical Care Medicine Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Center for Nerve Injury and Repair Beijing Institute of Brain DisordersChina National Clinical Research Center for Neurological DiseasesBeijingChina

Although microglial polarization and neuroinflammation are crucial cellular responses after traumatic brain injury,the fundamental regulatory and functional mechanisms remain insufficiently *** potent anti-inflammato ry agents,the use of glucoco rticoids in traumatic brain injury is still controversial,and their regulatory effects on microglial polarization are not yet *** the present study,we sought to determine whether exacerbation of traumatic brain injury caused by high-dose dexamethasone is related to its regulatory effects on microglial polarization and its mechanisms of *** vitro cultured BV2 cells and primary microglia and a controlled cortical impact mouse model were used to investigate the effects of dexamethasone on microglial ***,dexamethasone,RU486(a glucocorticoid receptor antagonist),and ruxolitinib(a Janus kinase 1 antagonist)were ***-sequencing data obtained from a C57BL/6 mouse model of traumatic brain injury were used to identify potential targets of *** Morris water maze,quantitative reverse transcription-polymerase chain reaction,western blotting,immunofluorescence and confocal microscopy analysis,and TUNEL,Nissl,and Golgi staining were performed to investigate our ***-throughput sequencing results showed that arginase 1,a marker of M2 microglia,was significantly downregulated in the dexamethasone group compared with the traumatic brain injury group at3 days post-traumatic brain *** dexamethasone inhibited M1 and M2 microglia,with a more pronounced inhibitory effect on M2microglia in vitro and in *** receptor plays an indispensable role in microglial polarization after dexamethasone treatment following traumatic brain ***,glucocorticoid receptor activation increased the number of apoptotic cells and neuronal death,and also decreased the density of dendritic spines.A possible downstream receptor signaling mechanism is th

关键词： apoptosis BV2 microglia dexamethasone glucocorticoid receptor glucocorticoids innate immune system microglial polarization neuroinflammation primary microglia traumatic brain injury

A quantum-search-based multi-classifier for image recognition

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 21-31页

作者： Lu liu Xingyu wu Lufan Zhang Chuan Wang School of Artificial Intelligence Beijing Normal University Applied Optics Beijing Area Major Laboratory Beijing Normal University

The multi-class classification of images is a pivotal challenge within the realm of image processing. As the volume of visual data continues to expand, there is a burgeoning interest in harnessing the unique capabilities of quantum computation to augment the efficiency of classification tasks. However, many existing methods for training quantum image multi-classifiers parallel classical machine learning techniques, where the requisite circuit measurements increase linearly with the volume of training data. This work introduces a novel approach for training a quantum image multi-classifier based on the quantum search algorithm. We have meticulously conducted rigorous experiments on a handwritten digit dataset, a classic benchmark in the field. The results have been meticulously compared with previous works, and the comparative analysis not only validates the efficiency of our proposed approach, requiring only O(N/b) measurements during training, but also highlights a significant quadratic speedup of the algorithm.

关键词： quantum computation image recognition quantum search algorithm

苦玄参转录组EST-SSR引物开发及群体遗传多样性分析

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中草药 2019年第1期50卷 195-202页

作者：闫国跃杨帆白燕远李耀燕吴梦丽阿里穆斯谢阳姣中央民族大学民族医药教育部重点实验室北京100081 中央民族大学药学院北京100081 广西中医药大学瑶医药学院广西南宁530001 广西壮瑶药工程技术研究中心广西南宁530001

目的研究18个苦玄参种群的遗传多样性及亲缘关系,为苦玄参的资源评价及开发利用提供依据。方法采用EST-SSR引物开发技术,利用SSR分子标记,分析18个种群的遗传多样性,并基于遗传距离对其进行聚类分析,明确各种群间的亲缘关系。结果从100... 详细信息

目的研究18个苦玄参种群的遗传多样性及亲缘关系,为苦玄参的资源评价及开发利用提供依据。方法采用EST-SSR引物开发技术,利用SSR分子标记,分析18个种群的遗传多样性,并基于遗传距离对其进行聚类分析,明确各种群间的亲缘关系。结果从100对EST-SSR标记中,筛选出具有多态性的引物48对。随机抽取20对具有多态性的引物对18个种群进行扩增,共扩增出71个等位基因,平均每对引物3.55个。各引物间多态位点百分数(P)为0～40.7%,平均19.9%;多态信息含量(PIC)为0～0.794 1,平均0.397 7;Shannon信息指数(I)为0～1.814 3,平均0.808 4。观测杂合度(Obs_Het)为0～0.442 3,平均值0.212 7;预期杂合度(Exp_Het)变化范围0～0.826 9,平均值0.455 8。18个种群群内近交系数(Fis)值为-0.095 3～0.663 9,平均0.159 2;总群体内亚群间近交系数(Fit)值为0.062 6～0.858 7,平均0.537 2;遗传分化系数(Fst)为0～0.686,平均0.449 6。基因流(Nm)在0.114 4～0.759 4,平均值为0.306 1。各种群基因多样性指数(Nei)为0～0.401 6、I为0～0.620 9,广西梧州最高,云南普洱龙潭乡最低。云南景洪勐龙镇和云南景洪景哈乡遗传距离最近,仅0.031 9;广西龙州和云南勐海县打洛镇遗传距离最大,为0.963 8。在遗传距离0.321 3处,可将18个种群分成4个群体,其中广西3个种群归入同一群体,云南勐满镇、勐伦镇及勐遮镇归为同一个群体,第3个群体为云南勐海县勐宋乡,其余种群归入第4个群体。结论 18个种群遗传分化水平不一致,各种群杂合度差异较大。种群间Nm较小,群体基因交换不大;群体内存在一定的近交率,种群亲缘关系受地理隔离影响较大。

关键词：苦玄参 SSR 引物开发 EST-SSR 遗传多样性

Single-cell omics: experimental workflow, data analyses and applications

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Science China life Sciences 2025年第1期68卷 5-102页

作者： Fengying Sun Haoyan li Dongqing Sun Shaliu Fu Lei Gu Xin Shao Qinqin Wang Xin Dong Bin Duan Feiyang Xing Jun wu Minmin Xiao Fangqing Zhao Jing-Dong J.Han Qi liu Xiaohui Fan Chen li Chenfei Wang Tieliu Shi Department of Clinical Laboratory the Affiliated Wuhu Hospital of East China Normal University (The Second People's Hospital of Wuhu City) Pharmaceutical Informatics Institute College of Pharmaceutical SciencesZhejiang University Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University) Ministry of EducationOrthopaedic DepartmentTongji HospitalBioinformatics DepartmentSchool of Life Sciences and TechnologyTongji University Frontier Science Center for Stem Cells School of Life Sciences and TechnologyTongji University Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine Shanghai East HospitalBioinformatics DepartmentSchool of Life Sciences and TechnologyTongji University Research Institute of Intelligent Computing Zhejiang Lab Shanghai Research Institute for Intelligent Autonomous Systems Center for Single-cell Omics School of Public HealthShanghai Jiao Tong University School of Medicine National Key Laboratory of Chinese Medicine Modernization Innovation Center of Yangtze River DeltaZhejiang University Center for Bioinformatics and Computational Biology Shanghai Key Laboratory of Regulatory Biologythe Institute of Biomedical Sciences and School of Life SciencesEast China Normal University Beijing Institutes of life Science Chinese Academy of Sciences Peking-Tsinghua Center for life Sciences Academy for Advanced Interdisciplinary StudiesCenter for Quantitative Biology (CQB)Peking University Zhejiang Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases Women's HospitalZhejiang University School of Medicine Key Laboratory of Advanced Theory and Application in Statistics and Data Science-MOE School of StatisticsEast China Normal University

Cells are the fundamental units of biological systems and exhibit unique development trajectories and molecular features. Our exploration of how the genomes orchestrate the formation and maintenance of each cell, and control the cellular phenotypes of various organismsis, is both captivating and intricate. Since the inception of the first single-cell RNA technology, technologies related to single-cell sequencing have experienced rapid advancements in recent years. These technologies have expanded horizontally to include single-cell genome, epigenome,proteome, and metabolome, while vertically, they have progressed to integrate multiple omics data and incorporate additional information such as spatial sc RNA-seq and CRISPR screening. Single-cell omics represent a groundbreaking advancement in the biomedical field,offering profound insights into the understanding of complex diseases, including cancers. Here, we comprehensively summarize recent advances in single-cell omics technologies, with a specific focus on the methodology section. This overview aims to guide researchers in selecting appropriate methods for single-cell sequencing and related data analysis.

关键词： single-cell sequencing genome epigenome proteomics metabolomics multimodal spatial transcriptomics CRISPR screening