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Effects of kadsurenone on the systemic inflammatory response in rat model of acute pancreatitis

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Journal of Nanjing Medical University 2006年第3期20卷 180-183页

作者： jun yao qing ong Lin Wang Department of Hepatobiliary the First Hospital of Xi＇an Jiaotong University.Xi＇an 710061China

Objective： To study the effects of kadsurenone on inflammatory mediators Platelet-activating factor （PAF）, tumor necrosis factor-α（TNF-α） and interleukin-6（IL-6） in rat model of acute pancreatitis（AP）. Methods： SD male rats （104） were randomly divided into sham group （n = 24）, AP group （n = 40） and kadsurenone group （n = 40）. The rats were killed 3, 6, 12 and 24 hours after operation. The serum level of PAF, TNF-α and IL-6 was measured. Results： The serum level of PAF, TNF-α and IL-6 of AP group was significantly increased（P 〈 0.01 ）compared with control group. The serum level of TNF-α got to a peak 6 hours after operation, and the serum IL-6 getting to a peak 12 hours after operation in AP group. After kadsurenone was administered to AP rats, pancreas and lung myeloperoxidase （MPO）, serum amylase activity was reduced. Histology showed a trend toward improvement. The serum level of PAF, TNF-α and IL-6 was significantly decreased （P 〈 0.05）. Conclusion. Kadsurenone can reduce the severity of systemic inflammation in rats with AP and relieve the damage of the pancreas and lung in AP rats. These results suggested that kadsurenone may be useful in the treatment of acute pancreatitis.

关键词： pancreatitis kadsurenone platelet-activating factor TNF-α IL-6

Infiltration by monocytes of the central nervous system and its role in multiple sclerosis: reflections on therapeutic strategies

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Neural Regeneration Research 2025年第3期20卷 779-793页

作者： Guangyong Zhang qing yao Chubing Long Pengcheng Yi Jiali Song Luojia Wu Wei Wan Xiuqin Rao Yue Lin Gen Wei jun Ying Fuzhou Hua Department of Anesthesiology the Second Affiliated Hospital of Nanchang UniversityNanchangJiangxi ProvinceChina Key Laboratory of Anesthesiology of Jiangxi Province NanchangJiangxi ProvinceChina

Mononuclear macrophage infiltration in the central nervous system is a prominent feature of neuroinflammation. Recent studies on the pathogenesis and progression of multiple sclerosis have highlighted the multiple roles of mononuclear macrophages in the neuroinflammatory process. Monocytes play a significant role in neuroinflammation, and managing neuroinflammation by manipulating peripheral monocytes stands out as an effective strategy for the treatment of multiple sclerosis, leading to improved patient outcomes. This review outlines the steps involved in the entry of myeloid monocytes into the central nervous system that are targets for effective intervention: the activation of bone marrow hematopoiesis, migration of monocytes in the blood, and penetration of the blood–brain barrier by monocytes. Finally, we summarize the different monocyte subpopulations and their effects on the central nervous system based on phenotypic differences. As activated microglia resemble monocyte-derived macrophages, it is important to accurately identify the role of monocyte-derived macrophages in disease. Depending on the roles played by monocyte-derived macrophages at different stages of the disease, several of these processes can be interrupted to limit neuroinflammation and improve patient prognosis. Here, we discuss possible strategies to target monocytes in neurological diseases, focusing on three key aspects of monocyte infiltration into the central nervous system, to provide new ideas for the treatment of neurodegenerative diseases.

关键词： blood–brain barrier macrophages monocytes multiple sclerosis neuroinflammation review therapy

Effect of partial recrystallization on microstructure and tensile properties of NiFeCoCrMn high-entropy alloy

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Transactions of Nonferrous Metals Society of China 2022年第3期32卷 947-956页

作者： Hui DU Jia-hong CAI Ya-song WANG jun-qing yao Qiang CHEN Yu CUI Xin-wang LIU Key Laboratory of Metallurgical Equipment and Control Technology Ministry of EducationWuhan University of Science and TechnologyWuhan 430081China Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering Wuhan University of Science and TechnologyWuhan 430081China Precision Manufacturing Institute Wuhan University of Science and TechnologyWuhan 430081China State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Southwest Technology and Engineering Research Institute Chongqing 400039China

To obtain a balance between strength and ductility in NiFeCoCrMn high-entropy alloy, the degree of dislocation strengthening was tuned via partial recrystallization during traditional thermomechanical processing(cold rolling and recrystallization). The tensile properties in each state were then examined. Significant improvements in uniform elongation and work hardening rate, with decrease in yield strength and ultimate tensile strength, are associated with increase in the recrystallized fraction, i.e., reductions in the degree of strain hardening. In particular, recrystallized fractions of 37% and 74% are obtained by annealing at 650 ℃ for 10 min and 15 min, respectively, which results in yield strengths of 1003 MPa and 742 MPa and uniform elongations of 4% and 24%, respectively. The strengthening is due to the unrecrystallized grains with a high density of dislocations, whereas the ductility benefits from the presence of recrystallized strain-free grains.

关键词： high-entropy alloy partial recrystallization microstructure tensile property strengthening mechanism

通心络干预的心肌微血管内皮细胞条件培养液对大鼠心肌细胞凋亡的影响

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中国循环杂志 2018年第3期33卷 279-284页

作者：位庚梁俊清姚兵郭志方石家庄市第二医院内分泌科河北省050000 河北以岭医药研究院

目的:探讨受损的心肌微血管内皮细胞对大鼠心肌细胞凋亡的影响及通心络的干预作用。方法:制备3种心肌微血管内皮细胞条件培养液:正常心肌微血管内皮细胞(RCMECs)条件培养液,同型半胱氨酸(Hcy)诱导损伤的RCMECs条件培养液和通心络干预的R... 详细信息

目的:探讨受损的心肌微血管内皮细胞对大鼠心肌细胞凋亡的影响及通心络的干预作用。方法:制备3种心肌微血管内皮细胞条件培养液:正常心肌微血管内皮细胞(RCMECs)条件培养液,同型半胱氨酸(Hcy)诱导损伤的RCMECs条件培养液和通心络干预的RCMECs条件培养液。将大鼠胚胎H9c2心肌细胞分为4组:(1)正常对照组:弃去原培养基,换为无血清细胞培养基(DMEM);(2)N-CM组:弃去原培养基,换为正常RCMECs条件培养液;(3)H-CM组:弃去原培养基,换为Hcy诱导损伤的RCMECs条件培养液;(4)T-CM组:弃去原培养基,换为通心络干预的RCMECs条件培养液。JC-1试剂检测细胞线粒体膜电位(MMP);流式细胞仪检测细胞活性氧簇(ROS)水平;活细胞成像系统动态观察各组心肌细胞凋亡情况;蛋白免疫印迹(Western blot)法检测细胞色素-C(Cyt-C)、半胱氨酸天冬氨酸蛋白酶-3(Caspase-3)、B细胞白血病淋巴瘤-2相关x蛋白(Bax)和B细胞白血病/淋巴瘤2(Bcl-2)蛋白表达。结果:与正常对照组的心肌细胞比较,N-CM组心肌细胞MMP、ROS、Cyt-C蛋白表达及凋亡无明显变化(P>0.05);与N-CM组比较,H-CM组心肌细胞MMP降低,ROS生成增加,凋亡增加,Cyt-C、Caspase-3和Bax蛋白表达上调(P均<0.01),Bcl-2蛋白表达下调(P<0.01);与H-CM组比较,T-CM组细胞MMP升高,ROS生成减少,凋亡减少,Cyt-C、Caspase-3和Bax蛋白表达下调(P<0.05,P<0.01),Bcl-2蛋白表达上调(P<0.01)。结论:损伤的心肌微血管内皮细胞条件培养液可诱导心肌细胞凋亡,通心络可抑制该过程。

关键词：通心络内皮细胞肌细胞,心脏细胞凋亡

Repair of severe scar contracture deformities of the patients with extremely limited donor skin at late postburn stage

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Repair of severe scar contracture deformities of the patient...

Effects of ultrasonic-assisted extraction on bioactive compounds,volatile flavors and antioxidant activities of vine tea water extracts

第八届全国烧伤外科学年会

作者： Chen Bi Jia Chi-yu Hu Da-hai Xu Ming-da Zhu Xiong-xiang Han jun-tao yao qing-jun Qiu Jian-guang Department of Burns,The Fourth Military Medical University Xi''an 710032,Shanxi Province P.R.China

＜正＞To explore new methods to repair postburn severe scar contracture deformities of the patients with extremely limited donor skin.

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Traditional Medicine Research 2025年第1期10卷 73-81页

作者： Xiao-Long Zhou Wei-Jin Jiang Ji Yu Mao-jun yao Yun-Tong Li Hunan Provincial Key Laboratory of Research Resource Mining and High-valued Utilization on Edible&Medicinal PlantCollege of Chemistry and Chemical EngineeringJishou UniversityJishou 416000China Hunan Gaoge Dairy Co. Ltd.Changsha 410000China

Background:Ampelopsis grossedentata,vine tea,which is the tea alternative beverages in *** vine tea processing,a large amount of broken tea is produced,which has low commercial ***:This study investigates the influence of different extraction methods(room temperature water extraction,boiling water extraction,ultrasonic-assisted room temperature water extraction,and ultrasonic-assisted boiling water extraction,referred to as room temperature water extraction(RE),boiling water extraction(BE),ultrasonic assistance at room temperature water extraction(URE),and ultrasonic assistance in boiling water extraction(UBE))on the yield,dihydromyricetin(DMY)content,free amino acid composition,volatile aroma components,and antioxidant properties of vine tea ***:A notable influence of extraction temperature on the yield of vine tea extracts(P<0.05),with BE yielding the highest at 43.13±0.26%,higher than that of RE(34.29±0.81%).Ultrasound-assisted extraction significantly increased the DMY content of the extracts(P<0.05),whereas DMY content in the RE extracts was 59.94±1.70%,that of URE reached 66.14±2.78%.Analysis revealed 17 amino acids,with L-serine and aspartic acid being the most abundant in the extracts,nevertheless ultrasound-assisted extraction reduced total free amino acid *** chromatography-mass spectrometry analysis demonstrated an increase in the diversity and quantity of compounds in the vine tea water extracts obtained through ultrasonic-assisted ***,69 and 68 volatile compounds were found in URE and UBE extracts,which were higher than the number found in RE and BE *** vitro,antioxidant activity assessments revealed varying antioxidant capacities among different extraction methods,with RE exhibiting the highest DPPH scavenging rate,URE leading in ABTS•+free radical scavenging,and BE demonstrating superior ferric ion reducing antioxidant ***:The findings suggest that extraction methods signi

关键词： vine tea dihydromyricetin ultrasonic-assisted extraction volatile aroma components

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异构无人系统协同控制研究进展

工程科学学报 2025年第1期47卷 66-78页

作者：郭兴李擎姚其家鲁小雅北京科技大学自动化学院北京100083 工业过程知识自动化教育部重点实验室北京100083

面对复杂化、多样化和立体化的任务需求,异构无人系统将空、地、海跨域优势互补,最大化提升系统各方面能力,为未来协同作战和智慧民生提供有力的技术保障.首先,梳理了国内外在跨域协同领域出台的推动性文件,介绍了异构无人系统在军用、... 详细信息

面对复杂化、多样化和立体化的任务需求,异构无人系统将空、地、海跨域优势互补,最大化提升系统各方面能力,为未来协同作战和智慧民生提供有力的技术保障.首先,梳理了国内外在跨域协同领域出台的推动性文件,介绍了异构无人系统在军用、科研院所和民用等三方面的实际应用.其次,针对异构无人系统关键技术之一的协同控制,分别阐述了异构无人系统协同控制在一致性、轨迹跟踪和编队‒合围等三方面的最新进展.此外,还特别讨论了在不同通信条件下协同控制所面临的挑战和解决方案.其中,由于一致性和轨迹跟踪存在上层控制理论性和下层控制可行性的区别,进一步从滑模控制、自适应控制、反步控制和自适应动态规划等四方面对轨迹跟踪研究展开阐述.然后,为了更好地促进异构无人系统协同控制在实际中的应用,通过总结前人相关工作,讨论了其在多约束控制与实时性、多任务切换控制和跨域通信下稳定性等三方面亟需解决的技术瓶颈.最后,综合异构无人系统协同控制研究现状和实际需求来看,指出了其在深度强化学习与分布式博弈、人机交互以及反群体智能等三方面的发展趋势.

关键词：异构无人系统协同控制跨域协同任务需求技术瓶颈

Deciphering fungal metabolon coupling tandem inverse-electrondemand Diels-Alder reaction and semipinacol rearrangement for the biosynthesis of spiro polycyclic alkaloids

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Science China Chemistry 2025年第1期68卷 288-296页

作者： Shuai Liu Wen-Qiang Xu Ying-Tong Di Man-Cheng Tang Ding-Kang Chen Ming-Ming Cao yao-Wen Chang Hong-Yu Tang Chun-Mao Yuan jun-Bo Yang Zhi-Li Zuo Han Guo Zi-Fei Xu Ying Zeng Yun-Dong Wu Xiao-Jiang Hao Key Laboratory of Phytochemistry and Natural Medicines (Chinese Academy of Sciences) Kunming Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences Lab of Computational Chemistry and Drug Design State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Shenzhen Bay Laboratory State Key Laboratory of Microbial Metabolism School of Life Sciences & Biotechnology Shanghai Jiao Tong University State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Molecular Biology Experimental Center Germplasm Bank of Wild Species in Southwest China Kunming Institute of Botany Chinese Academy of Sciences Yunnan Key Laboratory for Wild Plant Resources Kunming Institute of Botany Chinese Academy of Sciences Research Unit of Chemical Biology of Natural Anti-Virus Products Chinese Academy of Medical Sciences

In the intricate process of natural product biosynthesis, a metabolon can enhance metabolic flux by associating sequential enzymes. A fungal metabolon, comprising of flavin-dependent monooxygenase Spe F and P450 monooxygenase Spe G, is identified in the biosynthesis of spiro polycyclic alkaloids(+)-notoamide B and its diastereomer(+)-versicolamide B. Using notoamide E as a substance, Spe F/Spe G metabolon can control the stereoselectivity of its 2,3-epoxidation, followed by hydrogen atom ion at C-17 to generate reactive epoxide tau-m A with dienyl iminium unit. Subsequently,(+)-notoamide B and(+)-versicolamide B are produced via tandem nonenzymatic inverse-electron-demand Diels-Alder reaction and semipinacol rearrangement. This provides the first example of metabolon in the biosynthesis of spiro-prenylated indole alkaloids.

关键词： metabolon Diels-Alder reaction semipinacol rearrangement biosynthesis notoamides spiro polycyclic alkaloids

Spatial and Temporal Variability of Water Vapor Content during 1961-2011 in Tianshan Mountains,China

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Journal of Mountain Science 2015年第3期12卷 571-581页

作者： HU Wen-feng yao jun-qiang HE qing YANG qing Center for Climate Change and Hydrologic Cycle in Arid Region College of Earth and Environmental ScienceLanzhou University College of Resources and Environment Xinjiang University Institute of Desert Meteorology China Meteorological Administration

Based on the climate factors data and surface vapor pressure （SVP） data of 44 weather stations in Tianshan Mountains during the years 1961-2011, this paper establishes a water vapor content （WVC） estimation model according to the relationship between monthly WVC of radiosonde and corresponding SVP and analyzes the spatial and temporal variability of WVC and their causes. The results show that the WVC is linearly and negatively related to the elevation and longitude （Vertical zonality and Longitude zonality）, while it was not linearly related to the latitude. The westerly wind, geographical situation and sea level elevation composed complex surface conditions to influence the spatial distribution of WVC in the Tianshan Mountains. The Mann-Kendall （M-K） statistical test shows a significant increasing trend in the mean annual WVC in Tianshan Mountains during 1961- 2011（P 〈 0.001）, with a rate of 0.23 mm/decade, and indicates an abrupt turning point in 1985 （P.〈0.001）. Correlation analysis shows that the WVC are significantly correlated to the temperature, especially during the winter, but the summer WVC are significantly correlated to the precipitation. In addition, the North Atlantic Oscillation Index （NAOI） and the Arctic Oscillation Index （AOI） are significantly correlated to the winter WVC in the Tianshan Mountains. As a new Microwave radiometric profilers （MWRPs） instrument, the MP- 3000A provides continuous, real-time and high temporal resolution atmospheric profiles up to 10 km. In order to monitor water vapor and atmosphere profiles in Tianshan Mountains, an MP-3000A was established in Urumqi （43.8°N, 87.58°N） in May 2008. The results indicated that the MP-3oooA was applicable to this area, and the evolutionary process of water vapor and the WVC peak values of MP- 3000A were a strong signal for rainstorm and flood forecasts for Urumqi and the Tianshan Mountains.

关键词： Water vapor content Spatial variability Temporal variability Microwave radiometers Tianshan Mountains