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C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 pathway as a therapeutic target and regulatory mechanism for spinal cord injury

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Neural Regeneration Research 2025年第8期20卷 2231-2244页

作者： Xiangzi Wang Xiaofei Niu Yingkai Wang yang liu Cheng yang Xuyi Chen Zhongquan Qi School of Medicine Guangxi UniversityNanningGuangxi Zhuang Autonomous RegionChina Graduate School of Tianjin University of Traditional Chinese Medicine TianjinChina Characteristic Medical Center of People’s Armed Police Forces TianjinChina Fujian Maternity and Child Health Hospital FuzhouFujian ProvinceChina

Spinal cord injury involves non-reversible damage to the central nervous system that is characterized by limited regenerative capacity and secondary inflammatory *** expression of the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis exhibits significant differences before and after *** studies have revealed that the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis is closely associated with secondary inflammatory responses and the recruitment of immune cells following spinal cord injury,suggesting that this axis is a novel target and regulatory control point for *** review comprehensively examines the therapeutic strategies targeting the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis,along with the regenerative and repair mechanisms linking the axis to spinal cord ***,we summarize the upstream and downstream inflammatory signaling pathways associated with spinal cord injury and the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 *** review primarily elaborates on therapeutic strategies that target the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis and the latest progress of research on antagonistic drugs,along with the approaches used to exploit new therapeutic targets within the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis and the development of targeted ***,there are presently no clinical studies relating to spinal cord injury that are focusing on the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 *** review aims to provide new ideas and therapeutic strategies for the future treatment of spinal cord injury.

关键词： apoptosis C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 pathway C-C motif chemokine receptor 2 antagonists chemokine ligand 2 chemokine receptor 2 inflammation macrophage microglia spinal cord injury therapeutic method

Bullous pemphigoid associated with acquired hemophilia A: A case report

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World Journal of Clinical Cases 2025年第4期13卷 28-33页

作者： Su-Ye Hu Meng-Can Li Zi-Jia Hao Xu-Ya Chai Pei-Sai Li yang liu Li-Xia liu Ying Xu Pan-Pan yang Ling-E Li Department of Dermatology Shijiazhuang Traditional Chinese Medicine HospitalShijiazhuang 050051Hebei ProvinceChina Graduate School Hebei University of Traditional Chinese MedicineShijiazhuang 050051Hebei ProvinceChina Department of Pathology Shijiazhuang Traditional Chinese Medicine HospitalShijiazhuang 050051Hebei ProvinceChina

BACKGROUND Acquired hemophilia A (AHA) is a rare and potentially severe bleeding disordercaused by circulating autoantibodies against factor Ⅷ (FⅧ). In approximately50% of the patients, the condition is associated with autoimmune diseases,cancers, medication use, pregnancy, and the post-partum period. Bullous pemphigoid(BP) is a chronic autoimmune subepidermal blistering disease associatedwith tissue-bound and circulating autoantibodies against BP antigens 180 (BP180)and 230 (BP230). AHA-associated BP has a high mortality rate;hence, the understandingof this disease must *** SUMMARY A 69-year-old man presented with erythema, blisters, blood blisters, and crustsaccompanied by severe pruritus for more than 20 days, and ecchymosis andswelling on his left upper arm for 3 days. Pathological examination revealed asubepidermal blister that contained eosinophils. Laboratory tests showed that theBP180 autoantibody levels had increased, isolated activated partial thromboplastintime was notably prolonged (115.6 s), and coagulation FⅧ activity wasextremely low (< 1.0%). Furthermore, the FⅧ inhibitor titer had greatlyincreased (59.2 Bethesda units). Therefore, the patient was diagnosed as having BP associated with AHA, prescribed 0.05% topical halometasone cream, and transferred to a higher-level hospitalfor effective treatment;however, he died after 2 *** AHA associated BP is rare, dangerous, and has a high mortality rate. Therefore, its timely diagnosis and effectivetreatment are necessary.

关键词： Bullous pemphigoid Acquired hemophilia A Acquired hemophilia A FactorⅧ Case report

基于自适应反馈机制的小差异化图像纹理特征信息数据检索

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江苏大学学报（自然科学版） 2025年第1期46卷 73-81页

作者：刘洋毛克明东北大学图书馆辽宁沈阳110819 东北大学软件学院辽宁沈阳110819

针对小差异化图像纹理相似度和噪声等因素导致纹理特征挖掘效果较差的问题,设计一种自适应反馈结合局部二值机制的小差异化图像纹理特征挖掘方法.使用规范割策略将图像数据各点拟作节点,使用节点间的连接线权重计算2点的相似度,采用支... 详细信息

针对小差异化图像纹理相似度和噪声等因素导致纹理特征挖掘效果较差的问题,设计一种自适应反馈结合局部二值机制的小差异化图像纹理特征挖掘方法.使用规范割策略将图像数据各点拟作节点,使用节点间的连接线权重计算2点的相似度,采用支持向量机训练图像属性参数分类图像属性,进一步归纳图像类别.运用跳跃连接方法传输图像数据,将数据引入卷积神经网络剔除图像噪声.将中心点像素值当作反馈因子,创建自适应反馈判定条件,利用局部二值模式实现小差异化图像纹理特征挖掘.在MATLAB平台进行试验,从卷积神经网络收敛性、图像频谱纹理单元数、平均准确率、图像数据匹配度等方面进行了分析,分析结果表明:随着迭代次数不断增加,精度损失逐渐降低,基本收敛到稳定值,达到了预期训练效果;所提出方法挖掘的图像频谱纹理单元数3800个以上,更贴合人眼视觉信息;平均准确率为0.87,准确率@1、准确率@5和准确率@10的平均值分别为0.90、0.84和0.85;挖掘耗时低于5 s,图像数据匹配度高于90.3%,验证了所提出方法可在图像纹理特征识别操作中发挥应有作用.

关键词：小差异化图像纹理特征数据挖掘自适应反馈属性分类跳跃连接局部二值模式支持向量机

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脂肪间充质干细胞治疗急性肝损伤的分子机制

中国组织工程研究 2025年第23期29卷 5041-5050页

作者：杨娜刘杨郝慧琴山西中医药大学中西医结合基础实验室山西省晋中市030619

背景:急性肝损伤是由多种病因诱发的肝脏损害,如未及时治疗则会发展成急性肝衰竭,严重影响患者的生命安全。由于肝脏是人体最大的免疫器官和代谢器官,目前治疗急性肝损伤尚无最优方案。脂肪间充质干细胞因具有多向分化潜能和免疫调节活... 详细信息

背景:急性肝损伤是由多种病因诱发的肝脏损害,如未及时治疗则会发展成急性肝衰竭,严重影响患者的生命安全。由于肝脏是人体最大的免疫器官和代谢器官,目前治疗急性肝损伤尚无最优方案。脂肪间充质干细胞因具有多向分化潜能和免疫调节活性已逐渐成为治疗急性肝损伤的有效工具。目的:综述目前脂肪间充质干细胞及其经不同方式修饰后治疗急性肝损伤的进展和分子机制。方法:从PubMed、Web of Science与中国知网数据库中检索2000-2023年发表的相关文献,以“Acute liver injury,liver injury,Adipose tissue-derived mesenchymal stem cell,liver Injury Repair,stem cell transplantation,stem cell repair,Cell surface engineering,stem cell modification”为英文检索词,以“急性肝损伤,肝损伤,脂肪间充质干细胞,肝损伤修复,干细胞移植,干细胞修复,干细胞修饰”为中文检索词,最终检索筛选出该领域最新研究进展的62篇文献进行归纳分析。结果与结论:(1)脂肪间充质干细胞作为一种具有多向分化潜能的干细胞治疗急性肝损伤具有生物学优势,较其他两种主要间充质干细胞类型——骨髓间充质干细胞和脐带间充质干细胞具有来源丰富、获取便捷、医学伦理问题少的特点,且较骨髓间充质干细胞的自我更新能力强。(2)脂肪间充质干细胞可以通过降低免疫反应、分化为肝细胞、分泌生长因子和外泌体等多种途径,降低血清炎症因子表达,减少肝脏组织炎性细胞浸润,抑制细胞焦亡和自噬,发挥抗凋亡作用,促进肝窦内皮细胞和肝细胞再生等分子机制改善肝损伤;目前尚无研究表明何种机制为脂肪间充质干细胞治疗急性肝损伤的最佳机制,多数观点认为这些分子机制之间相互影响相互作用协同发挥治疗作用。(3)生物材料修饰和药物预处理等方式可以提升脂肪间充质干细胞治疗急性肝损伤的疗效:一方面,生物材料和药物修饰可以提升脂肪间充质干细胞自身的功能,如提高增殖迁移能力,上调其分泌的生长因子水平,增强抗炎能力等,从而促进脂肪间充质干细胞在损伤部位存活;另一方面,生物材料和药物修饰可以抑制损伤部位炎性细胞活化,促进血管生长,改善损伤部位环境从而提高移植成功率。(4)总之,脂肪间充质干细胞可以通过分泌生长因子和外泌体、发挥免疫调节作用及促进肝脏再生等途径在治疗急性肝损伤中发挥重要作用。随着科学技术的发展,生物材料与药物修饰可以提升脂肪间充质干细胞的自我更新能力,改善急性肝损伤的局部微环境,为进一步促进脂肪间充质干细胞治疗急性肝损伤的临床应用提供新的思路。

关键词：急性肝损伤脂肪间充质干细胞肝脏脂肪组织细胞移植细胞修饰细胞工程损伤修复

Oxidation Resistance of Form-stable High-temperature Phase Change Thermal Energy Storage Materials Doped by Impregnated Graphite

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期 1-12页

作者：李宝让 DAI Jianhuan ZHANG Wei liu Xiangchen yang liu School of Energy Power and Mechanical Engineering North China Electric Power University School of Energy and Environment Southeast University

We adopted the solution impregnation route with aluminum dihydrogen phosphate solution as liquid medium for effective surface modification on graphite *** mass ratio of graphite to Al（H2PO4）3changed from 0.5:1 to 4:1,and the impregnation time changed from 1 to *** typical composite phase change thermal storage materials doped with the as-treated graphite were fabricated using form-stable *** investigate the oxidation and anti-oxidation behavior of the impregnated graphite at high temperatures,the samples were put into a muffle furnace for a cyclic heat *** on SEM,EDS,DSC techniques,analyses on the impregnated technique suggested an optimized processing conditions of a 3 h impregnation time with the ratio of graphite:Al（H2PO4）3as 1:3 for graphite impregnation *** investigations on high-temperature phase change heat storage materials doped by the treated graphite suggested excellent oxidation resistance and thermal cycling performance.

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Mesh-supported V2O5-WO3/TiO2 nanosheet array catalysts for efficient removal of NOx

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Tungsten 2025年第1期 100-111页

作者： Zhi-Qi Zhang liu yang Wen Luo Vladimir An Jing Li Bao-Dan liu School of Materials Science and Engineering Northeastern University Foshan Graduate School of Innovation Northeastern University Kizhner Research Center School of Advanced Manufacturing Technologies Tomsk Polytechnic University

The design and synthesis of vanadium-based denitration catalysts with low-temperature activity pose significant challenges in the field of toxic gas *** this study,we have developed a novel approach to fabricate highly efficient V2O5-WO3/TiO2monolithic mesh catalysts for NOxreduction at low ***,TiO2nanosheets with strong adhesion and large surface area were grown on Ti mesh using plasma electrolytic oxidation technology and hydrothermal ***,super-small traces of WO3and V2O5active nano-species were subsequently deposited on TiO2nanosheets using the deposition-precipitation *** to traditional ceramic-based V2O5-WO3/TiO2catalysts,our V2O5-WO3/TiO2monolithic mesh catalyst exhibits superior mechanical performance,excellent thermal conductivity,lower pressure drop,higher utilization of active components,and stronger synergistic ***,the V2O5-WO3/TiO2monolithic mesh catalysts exhibited excellent low-temperature catalytic activity with 98% of NOxconversion at 220℃,and remarkable long-term SO2tolerance and water resistance in the selective catalytic reduction（SCR） of NOxwith *** SCR reaction of tiny V2O5and WO3active species supported on TiO2nanosheets directly demonstrated to follow the Eley-Rideal mechanism by in situ infrared spectra.

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缺血性脑卒中铁死亡特征基因NFE2L2的鉴定与验证

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中国组织工程研究 2025年第7期29卷 1466-1474页

作者：王咪马书杰刘杨齐瑞上海中医药大学附属岳阳中西医结合医院康复医学科上海市200437 上海中医药大学上海市201203 上海市第二康复医院上海市200431

背景:铁死亡与缺血性脑卒中的发病密切相关,靶向铁死亡是一种治疗缺血性脑卒中有前景的方案,但具体调控靶点尚不明确。目的:通过生物信息学和机器学习方法筛选缺血性脑卒中铁死亡相关特征基因,并通过细胞实验进行验证,探讨铁死亡在缺血... 详细信息

背景:铁死亡与缺血性脑卒中的发病密切相关,靶向铁死亡是一种治疗缺血性脑卒中有前景的方案,但具体调控靶点尚不明确。目的:通过生物信息学和机器学习方法筛选缺血性脑卒中铁死亡相关特征基因,并通过细胞实验进行验证,探讨铁死亡在缺血性脑卒中的作用。方法:基于GEO数据库和FerrDb数据库选取符合条件的缺血性脑卒中相关数据集和铁死亡表达数据集,通过t检验筛选铁死亡相关差异基因。对铁死亡相关差异基因进行GO功能富集分析与KEGG信号通路富集分析。通过PPI网络分析和机器学习筛选缺血性脑卒中铁死亡的特征基因,利用ROC分析和GSEA分析探究特征基因的准确性和生物功能。然后进行细胞实验,将HT22细胞分为对照组与缺血性脑卒中组,对照组不作任何干预,缺血性脑卒中组加入0.1 mol/L的H_(2)O_(2)干预24 h诱导细胞氧化应激和铁死亡,通过实时荧光定量RT-PCR和Western Blot验证铁死亡的发生和特征基因表达。结果与结论:(1)共获取45个铁死亡相关差异基因,GO和KEGG富集分析发现差异基因与氧化应激、自噬、铁死亡、脂肪细胞因子信号通路和线粒体代谢密切相关。(2)通过PPI网络中的MCODE插件和cytoHubba插件与机器学习中的LASSO算法和SVM-RFE算法共鉴定出1个铁死亡特征基因核因子E2相关因子2(nuclear factor erythroid 2-related factor 2,NFE2L2)。(3)对NFE2L2进行ROC曲线分析,发现在训练集和验证集中构建的诊断预测模型具有良好的准确性与特异性;对NFE2L2进行GSEA分析,发现特征基因通过免疫、炎症反应、氨基酸代谢及神经因子调控等方面参与缺血性脑卒中发病机制的调控。(4)细胞实验的RT-PCR和Western Blot分析表明,与对照组对比,缺血性脑卒中组中的酰基辅酶A合成酶长链家族成员4 mRNA和蛋白表达水平显著增高(P<0.05),谷胱甘肽过氧化物酶4 mRNA和蛋白表达水平显著降低(P<0.05);与对照组对比,缺血性脑卒中组中特征基因NFE2L2 mRNA和蛋白表达水平显著增高(P<0.05)。(5)上述结果证实,缺血性脑卒中与铁死亡密切相关,靶向特征基因NFE2L2可以为研究和治疗缺血性脑卒中提供一定的思路与方向。

关键词：缺血性脑卒中铁死亡生物信息学 HT22细胞机器学习特征基因细胞实验 NFE2L2 ASCL4 GPX4

Microstructure evolution in large billet during reduction pretreatment based on laboratory experiments

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Journal of Iron and Steel Research International 2023年第6期30卷 1244-1257页

作者： yang liu Jian-hua liu yang He National Engineering Research Center for Advanced Rolling and Intelligent Manufacturing University of Science and Technology BeijingBeijing 100083China

The reduction pretreatment process has been proposed to improve the center quality of large billet and reduce the rolling *** microstructure evolution during the reduction pretreatment was further *** austenite grains were refined after the reduction pretreatment experiment,especially those at the center of the *** effects of strain and strain rate on the average grain size were dependent on the deformation *** a strain rate of 0.01 s-1 and 1200°C,the newly formed strain-free austenite grains grew very fast as the strain continued to increase,which resulted in the coarsening of austenite *** calculation results of the microstructure evolution model showed that at the same deformation temperature,the evolution curves of average grain size with different strain rates had the intersection *** the increase in temperature,the position of intersection point moved to the downward direction of *** simulation results showed that when the reduction amount increased to 20%,the average grain size at the center was smaller than that near the *** could be inferred that when the reduction amount greatly exceeded 20%,the dynamic recrystallization at the center was mostly completed,and the austenite grain growth would become the main mechanism.

关键词： Large billet Reduction pretreatment Dynamic recrystallization Grain refinement Microstructure evolution model

Phase transformation behavior of Ti_(49)Ni_(49.5)Fe_1V_(0.5) and Ti_(48)Ni_(48.5)Fe_1V_(2.5) alloys after different heat treatments

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Rare Metals 2014年第1期33卷 16-20页

作者： yang-yang liu Fu-Shun liu School of Materials Science and Engineering Beijing University of Aeronautics and Astronautics

The effects of heat treatments on the phase transformation behavior of Ti49Ni49.5Fe1V0.5and Ti48Ni48.5Fe1V2.5 alloys were investigated. The results indicate that the alloys subjected to different heat treatments have B2 structure at room temperature. All the specimens exhibit a twostage B2 → R → B19r martensitic transformation on cooling, but a B19’ → B2 one-stage reverse martensitic transformation on heating except aged A1 alloy, which undergoes an abnormal two-stage transformation upon heating. The phase transformation temperatures are affected by heat treatments and V content, which can be attributed to the variation of the second-phase particles content in the matrix.

关键词： Keywords Heat treatments Phase transformationbehavior Ti-Ni-Fe-V alloy Second-phase particles