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Human-induced pluripotent stem cell-derived neural stem cell exosomes improve blood-brain barrier function after intracerebral hemorrhage by activating astrocytes via PI3K/AKT/MCP-1 axis

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Neural Regeneration Research 2025年第2期20卷 518-532页

作者： Conglin Wang Fangyuan Cheng Zhaoli Han Bo Yan Pan Liao Zhenyu Yin Xintong Ge Dai Li Rongrong Zhong Qiang liu Fanglian Chen ping Lei Department of Geriatrics Tianjin Medical University General HospitalTianjinChina School of Medicine Nankai UniversityTianjinChina Tianjin Neurological Institute TianjinChina

Cerebral edema caused by blood-brain barrier injury after intracerebral hemorrhage is an important factor leading to poor ***-induced pluripotent stem cell-derived neural stem cell exosomes(hiPSC-NSC-Exos)have shown potential for brain injury repair in central nervous system *** this study,we explored the impact of hiPSC-NSC-Exos on blood-brain barrier preservation and the underlying *** results indicated that intranasal delivery of hiPSC-NSC-Exos mitigated neurological deficits,enhanced blood-brain barrier integrity,and reduced leukocyte infiltration in a mouse model of intracerebral ***,hiPSC-NSC-Exos decreased immune cell infiltration,activated astrocytes,and decreased the secretion of inflammatory cytokines like monocyte chemoattractant protein-1,macrophage inflammatory protein-1α,and tumor necrosis factor-αpost-intracerebral hemorrhage,thereby improving the inflammatory *** sequencing indicated that hiPSC-NSC-Exo activated the PI3K/AKT signaling pathway in astrocytes and decreased monocyte chemoattractant protein-1 secretion,thereby improving blood-brain barrier *** with the PI3K/AKT inhibitor LY294002 or the monocyte chemoattractant protein-1 neutralizing agent C1142 abolished these *** summary,our findings suggest that hiPSC-NSC-Exos maintains blood-brain barrier integrity,in part by downregulating monocyte chemoattractant protein-1 secretion through activation of the PI3K/AKT signaling pathway in astrocytes.

关键词： AKT astrocyte blood-brain barrier cerebral edema exosomes human-induced pluripotent stem cells intracerebral hemorrhage neural stem cells neuroinflammation PI3K

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Identification of a dual functional betulinic acid analog for the treatment of osteoarthritis by phenotypic screening

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Science China Life Sciences 2025年第1期68卷 300-302页

作者： Ze-Min Lin Mai Xiang Wen-Hui Wei Shu-Hui Fan Li Chen Jie Wang Xiao-Qian Yang Chun-Hao Yang Shi-Jun he Jian-ping Zuo Laboratory of Immunopharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of Sciences School of Pharmacy University of Chinese Academy of Sciences School of Pharmacy Nanjing University of Chinese Medicine State Key Laboratory of Drug Research Department of Medicinal ChemistryShanghai Institute of Materia MedicaChinese Academy of Sciences Innovation Research Institute of Traditional Chinese Medicine Shanghai University of Traditional Chinese Medicine Experiment Center for Science and Technology Shanghai University of Traditional Chinese Medicine

Dear Editor, Phenotypic drug discovery, which observes compound effects on physiology,has given way to targeting specific molecules, but has revived by using modern methods to find drugs based on therapeutic outcomes in disease models(Vincent et al., 2022). Osteoarthritis(OA) is a prevalent chronic joint disorder, primarily affecting knee joints, with osteoclast activation due to low-grade inflammation resulting in increased bone resorption and structural changes in the joint(Katz et al.,2021).

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Transient chemical-mediated epigenetic modulation confers unrestricted lineage potential on human primed pluripotent stem cells

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Science China Life Sciences 2025年

作者： Shi Chen Yuanyuan he Lejun Lv Bei liu Cheng Li Hongkui Deng Jun Xu Department of Cell Biology School of Basic Medical Sciences Peking University Stem Cell Research Center Peking University Health Science Center Peking University Academy of Advanced Interdisciplinary Studies Peking University BeiCell Therapeutics School of Life Sciences Center for Bioinformatics Center for Statistical Science Peking University MOE Engineering Research Center of Regenerative Medicine School of Basic Medical Sciences State Key Laboratory of Natural and Biomimetic Drugs Peking University Health Science Center and the MOE Key Laboratory of Cell Proliferation and Differentiation College of Life Sciences Peking-Tsinghua Center for Life Sciences Peking University

Human primed pluripotent stem cells are capable of generating all the embryonic ***,their extraembryonic trophectoderm potentials are *** remains unclear how to expand their developmental potential to trophectoderm *** we show that transient treatment with a cocktail of small molecule epigenetic modulators imparts trophectoderm lineage potentials to human primed pluripotent stem cells while preserving their embryonic *** chemically treated cells can generate trophectoderm-like cells and downstream trophoblast stem cells,diverging into syncytiotrophoblast and extravillous trophoblast *** and CUT&Tag analyses reveal that these induced cells share transcriptional profiles with in vivo trophectoderm and cytotrophoblast,and exhibit reduced H3K27me3 modification at gene loci specific to trophoblast lineages compared with primed pluripotent *** exploration highlighted the critical roles of epigenetic modulators HDAC2,EZH1/2,and KDM5s in the activation of trophoblast lineage *** findings demonstrate that transient epigenetic resetting activates unrestricted lineage potential in human primed pluripotent stem cells,and offer new mechanistic insights into human trophoblast lineage specification and in vitro models for studying placental development and related disorders.

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功能性消化不良不同亚型患者心理因素的比较研究

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胃肠病学 2016年第9期21卷 554-556页

作者：张琴贺国斌刘平向佳向霞宣汉县人民医院消化内科 636150 川北医学院附属医院消化内科

背景:焦虑、抑郁、躯体化是影响功能性消化不良(FD)患者生活质量的重要因素,但与FD各亚型之间的关系尚不完全清楚。目的:探索焦虑、抑郁和躯体化对FD各亚型患者的影响。方法:应用焦虑自评量表(GAD-7)、抑郁自评量表(PHQ-9)、躯体化症状... 详细信息

背景:焦虑、抑郁、躯体化是影响功能性消化不良(FD)患者生活质量的重要因素,但与FD各亚型之间的关系尚不完全清楚。目的:探索焦虑、抑郁和躯体化对FD各亚型患者的影响。方法:应用焦虑自评量表(GAD-7)、抑郁自评量表(PHQ-9)、躯体化症状自评量表(PHQ-15)、悉尼消化不良指数简表(NDI)和消化不良症状严重度量表(DSS)分别评估223例FD患者的焦虑、抑郁、躯体化、生活质量和消化不良严重度,并分析焦虑、抑郁、躯体化对FD各亚型生活质量和消化不良的影响。结果:EPS、PDS和EPS与PDS重叠组的GAD-7、PHQ-9、PHQ-15、NDI、DSS评分相比差异有统计学意义(P<0.05)。FD各亚型患者的生活质量与焦虑、抑郁和躯体化均相关(P<0.05),而消化不良严重度仅与躯体化相关(P<0.05)。抑郁和躯体化是影响FD各亚型患者生活质量的因素(P<0.05),躯体化是影响各亚型患者消化不良的因素(P<0.05)。结论:EPS与PDS症状重叠患者的焦虑、抑郁、躯体化较EPS、PDS患者严重,对生活质量和消化不良的影响亦更大。

关键词：功能性消化不良焦虑抑郁躯体化

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Dip2a regulates stress susceptibility in the basolateral amygdala

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Neural Regeneration Research 2025年第6期20卷 1735-1748页

作者： Jing Li Zixuan he Weitai Chai Meng Tian Huali Yu Xiaoxiao he Xiaojuan Zhu Key Laboratory of Molecular Epigenetics Ministry of Education Institute of Genetics and CytologyNortheast Normal UniversityChangchunJilin ProvinceChina

Dysregulation of neurotransmitter metabolism in the central nervous system contributes to mood disorders such as depression, anxiety, and post–traumatic stress disorder. Monoamines and amino acids are important types of neurotransmitters. Our previous results have shown that disco-interacting protein 2 homolog A(Dip2a) knockout mice exhibit brain development disorders and abnormal amino acid metabolism in serum. This suggests that DIP2A is involved in the metabolism of amino acid–associated neurotransmitters. Therefore, we performed targeted neurotransmitter metabolomics analysis and found that Dip2a deficiency caused abnormal metabolism of tryptophan and thyroxine in the basolateral amygdala and medial prefrontal cortex. In addition, acute restraint stress induced a decrease in 5-hydroxytryptamine in the basolateral amygdala. Additionally, Dip2a was abundantly expressed in excitatory neurons of the basolateral amygdala, and deletion of Dip2a in these neurons resulted in hopelessness-like behavior in the tail suspension test. Altogether, these findings demonstrate that DIP2A in the basolateral amygdala may be involved in the regulation of stress susceptibility. This provides critical evidence implicating a role of DIP2A in affective disorders.

关键词： 5-hydroxytryptamine acute restraint stress basolateral amygdala CaMKII neurons DIP2A metabolomics neurotransmitters principal component analysis stress susceptibility tryptophan

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芪参益气滴丸治疗慢性充血性心力衰竭窦性心律震荡的临床研究

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天津中医药 2009年第3期26卷 202-204页

作者：何柳平吴玉付广西医科大学第四附属医院心内科柳州545005

[目的]观察芪参益气滴丸对改善慢性充血性心力衰竭患者自主神经功能的临床疗效。[方法]79例具有症状的慢性充血性心力衰竭患者完全随机分成芪参益气滴丸组和对照组,芪参益气滴丸组在常规强心,利尿,扩血管等抗心力衰竭治疗基础上给予口... 详细信息

[目的]观察芪参益气滴丸对改善慢性充血性心力衰竭患者自主神经功能的临床疗效。[方法]79例具有症状的慢性充血性心力衰竭患者完全随机分成芪参益气滴丸组和对照组,芪参益气滴丸组在常规强心,利尿,扩血管等抗心力衰竭治疗基础上给予口服芪参益气滴丸,服药时间0.5a,对照组予常规抗心衰治疗。两组分别于服药前及服药后半年检查动态心电图,计算窦性心率震荡(HRT)的两个量化指标震荡初始(TO)和震荡斜率(TS),通过超声心动图测定每分输出量(CO)、心脏指数(CI)、左室射血分数(LVEF)及行6min步行试验(6-MWT)。对比组间及组内治疗前后上述参数。[结果]治疗组与对照组比较,左室射血分数及六分钟步行试验改善更优,TS阳性率低于对照组。[结论]芪参益气滴丸可显著增加抗心衰疗效,并改善慢性心功能不全自主神经功能紊乱,对预防猝死有一定临床意义。

关键词：芪参益气滴丸慢性充血性心力衰竭窦性心律震荡

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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

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冠心病患者血小板CD41^+CD62^+与胱抑素C的相关性研究

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实用医学杂志 2012年第20期28卷 3369-3371页

作者：莫文宏杨帆王红谭保平何柳平吴昊广西医科大学第四附属医院柳州市工人医院心内科柳州市545005

目的:观察冠心病患者血小板CD62与胱抑素C的相关性。方法:选择116例在我院经冠状动脉造影检查确诊冠心病的患者为观察对象,于治疗前采静脉血,应用流式细胞术检测治疗前后血小板CD41+CD62+的阳性率,ELISA法测定血清中胱抑素C的浓度,酶法... 详细信息

目的:观察冠心病患者血小板CD62与胱抑素C的相关性。方法:选择116例在我院经冠状动脉造影检查确诊冠心病的患者为观察对象,于治疗前采静脉血,应用流式细胞术检测治疗前后血小板CD41+CD62+的阳性率,ELISA法测定血清中胱抑素C的浓度,酶法测定血清中肌酐的浓度。Pearson法分析血小板CD41+CD62+的阳性率与胱抑素C、肌酐的相关性。随访3个月,观察两组患者心血管不良事件发生率。结果:116例患者血小板CD41+CD62P+阳性率为(15.84±13.14)%,血清胱抑素C的浓度为(1.47±0.69)mg/L,血清肌酐浓度为(69.76±35.15)μmol/L,Pearson相关性分析显示血小板CD41+CD62P+与血清胱抑素C、肌酐存在相关(P<0.05)。结论:胱抑素C可能参与了动脉粥样硬化过程及血小板的激活。

关键词：冠心病 CD41+CD62P+ 胱抑素C

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喷口射流对环境泥沙的冲淤规律

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同济大学学报（自然科学版） 1999年第6期27卷 689-693页

作者：何耘韦鹤平刘成安徽建筑工业学院环境工程系安徽合肥230022 同济大学污染控制与资源化研究国家重点实验室上海200092

我国的排海工程扩散器多设置在多泥沙的河口、海湾等浅水水域中，为了使排放污水能够得到更大程度的稀释和扩散，应尽量降低上升管高度，以充分利用宝贵的水域空间．但上升管高度的降低增加了泥沙淤埋扩散器的可能性．结合上海污水治理... 详细信息

我国的排海工程扩散器多设置在多泥沙的河口、海湾等浅水水域中，为了使排放污水能够得到更大程度的稀释和扩散，应尽量降低上升管高度，以充分利用宝贵的水域空间．但上升管高度的降低增加了泥沙淤埋扩散器的可能性．结合上海污水治理二期工程白龙港排放口工程的研究，利用模型相似及泥沙运动理论，对泥沙淤埋和浑水环境两种情况进行了喷口射流对环境泥沙的冲淤规律试验，分析了扩散器各可行性方案在上升管高度尽可能降低后的冲淤能力，为工程设计提供参考．

关键词：排放口扩散器喷口射流泥砂排海工程

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D-DeepOCSORT: multi-object tracking algorithm based on LiDAR and monocular camera

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Optoelectronics Letters 2025年

作者： he Xiao REN Shuai liu Chang SHI Lei School of Information Engineering， Chang'an University School of Control of Robotic and Autonomous Systems， University of California Berkeley

Multi-object tracking is a fundamental problem in computer vision， and DeepOCSORT， due to its reliance on the 2D image position information of targets， tends to exhibit prediction drift. To enhance the tracking stability of DeepOCSORT， this paper proposes a novel multi-sensor data fusion-based multi-object tracking method. Specifically， we build upon the DeepOCSORT foundation and additionally integrate target velocity information directly measured by LiDAR. The introduction of this velocity information is conducted from three perspectives: firstly， during data association， a penalty term is constructed based on the differences in target velocities to constrain generating matches with consistent velocities; secondly， using LiDAR velocity for initialization and online updating of the velocity state within the tracker， making tracking predictions more stable; thirdly， controlling the degree of dependence on velocity information by adjusting the process noise covariance matrix. Evaluation results on the KITTI dataset demonstrate that compared to the original DeepOCSORT， the proposed improved multi-source heterogeneous information fusion method significantly enhances tracking performance， with maximum improvements of 3.35， 3.26， and 3.71 on the HOTA， MOTA， and IDF1 metrics， respectively. This study provides an effective approach to building a more stable and accurate multi-object tracking system.

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