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Protective Effect of Norcantharidin on Collagen-Induced Arthritis Rats

Chinese Journal of Integrative Medicine 2018年第4期24卷 278-283页

作者： SHEN Hong-bo huo ze-jun BAI Yun-jing HE Xiao-juan LI Chang-hong ZHAO Yu-kun GUO Qing-qing Department of Traditional Chinese Medicine Peking University Third Hospital Division of Rheumatology PLA Army General Hospital Institute of Basic Research in Clinical Medicine Academy of Chinese Medical Sciences Division of Rheumatology Peking University Third Hospital

Objective： To observe the effect of norcantharidin（NCTD） on collagen-induced arthritis（CIA） rats. Methods： Sixty Sprague-Dawley（SD） rats were randomly divided into 6 groups（n=10）： normal group, CIA model group（model group）, NCTD low-dose group [1.35 mg/（kg·d）], NCTD middle-dose group [2.7 mg/（kg·d）], NCTD high-dose group [5.4 mg/（kg·d）] and methotrexate（MTX） group [1.8 mg/（kg/w）]. Anesthetized rats were sacrificed by luxation of cervical vertebra after 4 weeks of administration. The arthritis scores were evaluated twice a week. The pathological changes in the ankle joints of rats were observed by hematoxylin-eosin（H＆E） staining. The serum levels of interleukin（IL） 1β, IL-6, tumor necrosis factor（TNF）-α, vascular endothelial growth factor（VEGF）, IL-17 and transform growth factor（TGF） β were detected by enzyme linked immunosorbent assay（ELISA）. The mRNA expression of retinoid-related orphan nuclear receptor γ t（ROR γ t） and forkhead box P3（Foxp3） in peripheral blood lymphocytes were confirmed by real-time polymerase chain reaction. Results： MTX and high-dose NCTD not only decreased the arthritis scores but also alleviated the pathological changes in CIA rats＇ ankle joints compared with the model group（P〈0.05 or P〈0.01）. All doses of NCTD significantly inhibited the serum levels of IL-6, IL-17 and TNF-α in CIA rats（P〈0.05）. Only middle-and high-dose of NCTD prominently decreased serum IL-1β and TGF-β levels of CIA rats（P〈0.05）. However, NCTD has no effect on vascular endothelial growth factor（VEGF） level in CIA rats. The Foxp3 mRNA expression in all NCTD groups were increased significantly than in the model group（P〈0.05）. The mRNA expression of RORγt in NCTD high-dose group was decreased apparently in comparison with the model group（P〈0.05）. Conclusion： NCTD showed therapeutic effect on CIA rats by inhibition of cytokines and regulation of Th17/Treg cells.

关键词： norcantharidin collagen-induced arthritis cytokine Th17/Treg forkhead box P3 retinoid related orphan nuclear receptor γt

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One hundred and fifty-seven cases of knee osteoarthritis treated by electroacupuncture

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World Journal of Acupuncture-Moxibustion 2011年第3期21卷 65-67页

作者：霍则军北京大学第三医院中医科北京100191

Knee osteoarthritis(KOA) is manifested by pain, rigidity and functional disturbance of the knee joints, regarded as a kind of retrograde *** affects the health and life quality of the *** hundred and fifty-seven cases... 详细信息

关键词：电针治疗膝关节骨性关节炎中医学针灸

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电针对兔脊髓缺血再灌注损伤组织肿瘤坏死因子-α和白细胞介素-6的影响

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针刺研究 2012年第4期37卷 308-311页

作者：霍则军牒军徐基民北京大学第三医院中医科北京100191 西安市第四医院骨科西安710001 北京博爱医院中医科北京100068

目的:观察电针对家兔脊髓缺血再灌注损伤模型行为学及缺血脊髓组织炎性反应的影响,评价电针对脊髓缺血再灌注损伤的保护作用。方法:新西兰家兔随机分为3组:假手术组、模型组和电针组,每组10只。模型组和电针组家兔用腹主动脉夹闭法复制... 详细信息

目的:观察电针对家兔脊髓缺血再灌注损伤模型行为学及缺血脊髓组织炎性反应的影响,评价电针对脊髓缺血再灌注损伤的保护作用。方法:新西兰家兔随机分为3组:假手术组、模型组和电针组,每组10只。模型组和电针组家兔用腹主动脉夹闭法复制脊髓缺血再灌注模型,缺血45min。电针组于造模成功后及术后12、24、36h分别予以电针"足三里"和"曲池"穴30min。各组分别于再灌注24、48h进行动物行为学评分;再灌注48h后,酶联免疫吸附法检测脊髓组织匀浆中的肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)含量。结果:模型组缺血再灌注24、48h后行为学评分明显下降(均P<0.05),缺血再灌注48h后脊髓组织匀浆中的TNF-α、IL-6含量显著升高(均P<0.05);电针组24、48h行为学评分明显高于模型组,脊髓组织匀浆中TNF-α、IL-6含量明显低于模型组(均P<0.05)。结论:电针对脊髓缺血再灌注损伤有一定的神经保护作用,可能与减轻了缺血组织的炎性反应有关。

关键词：电针脊髓缺血再灌注损伤运动功能肿瘤坏死因子-α 白细胞介素-6

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Integral precession calibration method of PIGA on linear vibration table

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Chinese Journal of Aeronautics 2024年第3期37卷 219-236页

作者： Chuang SUN Shun-qing REN jun-wei CAO Ru huo Department of Automation Tsinghua UniversityBeijing 100084China School of Astronautics Harbin Institute of TechnologyHarbin 150001China Beijing National Research Center for Information Science and Technology Tsinghua UniversityBeijing 100084China Faculty of Information technology Beijing University of TechnologyBeijing 100124China

Linear vibration table can provide harmonic accelerations to excite the nonlinear error terms of Pendulous Integrating Gyro Accelerometer(PIGA).Integral precession calibration method is proposed to calibrate PIGA on a linear vibration table in this *** on the precise expressions of PIGA’s inputs,the error calibration model of PIGA is *** angular velocity errors of PIGA are suppressed by integer periodic precession and the errors caused by non-integer periods vibrating are *** complete calibration process,including planning,preparation,PIGA testing,and coefficient identification,is designed to optimize the test operations and evaluate the calibration *** effect of the main errors on calibration uncertainty is analyzed and the relative sensitivity function is proposed to further optimize the test *** and simulation results verify that the proposed 10-position calibration method can improve calibration uncertainties after compensating for the related *** order of calibration uncertainties of the second-and third-order coefficients are decreased to 10^(-8)(rad.s^(-1))/g^(2)and 10^(-8)(rad.s^(-1))/g3,*** with the other two classical calibration methods,the calibration uncertainties of PIGA’s nonlinear error coefficients can be effectively reduced and the proportional residual errors are decreased less than 3×10-6(rad.s^(-1))/g by using the proposed calibration method.

关键词： PIGA Linear vibration table Vibration measurement Calibration Error analysis Uncertainty analysis

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Establishment of an Iron Deficiency Model by Iron Depletion in Pregnant Rats

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Biomedical and Environmental Sciences 2024年第2期37卷 210-215页

作者： CHEN Xi HAN Chao ZHAO Jin Peng SHEN Shi WANG Li Yuan REN Shou WANG Tong Lei MA Yan XU ze Chao huo jun Sheng Key Laboratory of Trace Element Nutrition National Health Commission of the People’s Republic of ChinaNational Institute for Nutrition and HealthChinese Center for Disease Control and PreventionBeijing 100050China

Anemia,a global public health problem,has significant adverse consequences on the cognitive development of children and the work capacity of adults;affecting social and economic ***,roughly 43%of children under five years of age,38%of pregnant women,and 29%of nonpregnant women had *** during pregnancy significantly increases the risk of low birth weight and preterm birth.A 10 g/L increase in hemoglobin has been estimated to decrease the risk of maternal and perinatal mortality by 29%and 28%.

关键词： mortality pregnancy anemia

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An efficient and universal protoplast-based transient gene expression system for genome editing in Brassica crops

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Horticultural Plant Journal 2024年第4期10卷 983-994页

作者： Xiaoxiao Yu Jintai Yu Yin Lu Wenjing Li Guanzhong huo jun Zhang Yan Li Jianjun Zhao jun Li State Key Laboratory of North China Crop Improvement and Regulation College of Life SciencesHebei Agricultural UniversityBaodingHebei 071001China Hebei Key Laboratory of Plant Physiology and Molecular Pathology Hebei Agricultural UniversityBaodingHebei 071001China Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei Collaborative Innovation Center of Vegetable Industry in HebeiCollege of HorticultureHebei Agricultural UniversityBaodingHebei 071001China College of Modern Science and Technology Hebei Agricultural UniversityBaodingHebei 071001China Human Resource Department Hebei Agricultural UniversityBaodingHebei 071001China

Protoplast-based transient gene expression system has been widely used in plant genome editing because of its simple operation and less *** order to establish a universal protoplast-based transient transfection system for verifying activities of genome editing vectors containing targets in Brassica,we systematically optimized factors affecting protoplast isolation and transient gene *** established an efficient protoplast-based transient gene expression system(PTGE)in Chinese cabbage,achieving high protoplast yield of 4.9×10^(5)·g^(-1)FW,viability over 95%,and transfection efficiency of 76%.We showed for the first time that pretreatment of protoplasts with a hypotonic MMG could significantly enhance the transfection ***,protoplasts incubated at 37℃ for 6 min improved the transfection efficiency to 86%.We also demonstrated that PTGE worked well(more than 50%transfection efficiency)in multiple Brassica species including cabbage,Pak Choi,Chinese kale,and ***,PTGE was used for validating the activities of CRISPR/Cas9 vectors containing targets in Chinese cabbage,cabbage,and pak choi,demonstrating the broad applicability of the established PTGE for genome editing in Brassica crops.

关键词： Chinese cabbage PTGE Transfection efficiency CRISPR/Cas9

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Caseinolytic mitochondrial matrix peptidase X is essential for homologous chromosome synapsis and recombination during meiosis of male mouse germ cells

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Asian Journal of Andrology 2024年第2期26卷 165-174页

作者： Hai-Wei Feng Yu Zhao Yan-Ling Gao Dong-Teng Liu Li-jun huo Key Laboratory of Agricultural Animal Genetics Breeding and ReproductionEducation Ministry of ChinaCollege of Animal Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China Shenzhen Key Laboratory of Fertility Regulation Reproductive Medicine CenterThe University of Hong Kong-Shenzhen HospitalShenzhen 518053China Maternal-Fetal Medicine Institute Department of Obstetrics and GynaecologyShenzhen Baoan Women's and Children's HospitalJinan UniversityShenzhen 518100China Department of Obstetrics and Gynaecology Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina

Meiosis is the process of producing haploid gametes through a series of complex chromosomal events and the coordinated action of various *** mitochondrial protease complex(ClpXP),which consists of caseinolytic mitochondrial matrix peptidase X(ClpX)and caseinolytic protease P(ClpP)and mediates the degradation of misfolded,damaged,and oxidized proteins,is essential for maintaining mitochondrial *** has been implicated in meiosis regulation,but its precise role is currently *** this study,we engineered an inducible male germ cell-specific knockout caseinolytic mitochondrial matrix peptidase X(Clpx^(cKO))mouse model to investigate the function of ClpX in *** found that disrupting Clpx in male mice induced germ cell apoptosis and led to an absence of sperm in the ***,it caused asynapsis of homologous chromosomes and impaired meiotic recombination,resulting in meiotic arrest in the zygotene-to-pachytene transition *** loss of ClpX compromised the double-strand break(DSB)repair machinery by markedly reducing the recruitment of DNA repair protein RAD51 homolog 1(RAD51)to DSB *** dysfunction may be due to an insufficient supply of energy from the aberrant mitochondria in Clpx^(cKO) spermatocytes,as discerned by electron ***,ubiquitination signals on chromosomes and the expression of oxidative phosphorylation subunits were both significantly attenuated in Clpx^(cKO) *** together,we propose that ClpX is essential for maintaining mitochondrial protein homeostasis and ensuring homologous chromosome pairing,synapsis,and recombination in spermatocytes during meiotic prophase I.

关键词： ClpX homologous chromosome meiosis mitochondrial recombination synapsis

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电针配合放血治疗慢性挥鞭样损伤临床研究

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北京中医药大学学报 2012年第9期35卷 642-644页

作者：霍则军张秋实郭佳北京大学第三医院中医科北京100191 北京护国寺中医院骨科

目的观察电针放血治疗慢性挥鞭样损伤的疗效及其对患者焦虑抑郁状态的改善作用。方法 40例患者随机分为单纯电针组(20例)与电针配合放血组(20例),两组分别进行电针及电针配合放血治疗并观察症状改善率及焦虑抑郁指数改善率。结果电针组... 详细信息

目的观察电针放血治疗慢性挥鞭样损伤的疗效及其对患者焦虑抑郁状态的改善作用。方法 40例患者随机分为单纯电针组(20例)与电针配合放血组(20例),两组分别进行电针及电针配合放血治疗并观察症状改善率及焦虑抑郁指数改善率。结果电针组与电针配合放血组症状改善率有显著性差异(P<0.05),而改善焦虑方面无显著差异。结论电针与放血对于慢性挥鞭样损伤治疗具有协同作用,能显著提高临床疗效。

关键词：电针放血慢性挥鞭样损伤焦虑抑郁指数

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Surface-induced Microstructure and Performance Changes in P3HT Ultrathin Films

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Chinese Journal of Polymer Science 2024年第6期42卷 805-814页

作者： Hong-Tao Shan Jia-Xin He Bing-Yan Zhu Xue-Ting Cao Ying-Ying Yan Jian-jun Zhou Hong huo Beijing Key Laboratory of Energy Conversion and Storage Materials College of ChemistryBeijing Normal UniversityBeijing100875China

In this work,poly(3-hexylthiophene)(P3HT)ultrathin films(P3HT-T)were prepared by spin-coating a dilute P3HT solution(in a toluene:o-dichlorobenzene(Tol:ODCB)blend with a volume ratio of 80:20)with ultrasonication and the addition of the nucleating agent bicycle[2.2.1]heptane-2,3-dicarboxylic acid disodium salt(HPN-68L)on glass,Si wafers and indium tin oxide(ITO)*** electrical and mechanical properties of the P3HT-T ultrathin films were investigated,and it was found that the conductivity and crack onset strain(COS)were simultaneously improved in comparison with those of the corresponding pristine P3HT film(P3HT-0,without ultrasonication and nucleating agent)on the same substrate,regardless of what substrate was ***,the conductivity of P3HT-T ultrathin films on different substrates was similar(varying from 3.7 S·cm^(-1)to 4.4 S·cm^(-1)),yet the COS increased from 97%to 138%by varying the substrate from a Si wafer to *** grazing-incidence wide-angle X-ray diffraction(GIXRD),UV-visible(UV-Vis)spectroscopy and atomic force microscopy(AFM),we found that the solid order and crystallinity of the P3HT-T ultrathin film on the Si wafer are highest,followed by those on glass,and much lower on ***,the surface energy and roughness of three substrates were investigated,and it was found that the polar component of the surface energyγp plays a critical role in determining the crystalline microstructures of P3HT ultrathin films on different *** work indicates that the P3HT ultrathin film can obviously improve the stretchability and simultaneously retain similar electrical performance when a suitable substrate is *** findings offer a new direction for research on stretchable CP ultrathin films to facilitate future practical applications.

关键词： P3HT ultrathin film Substrate Crystalline microstructures Polar component of the surface energy Electrical and stretchable performances

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Motion-pressure coupled control and simulation of long-endurance capability for multicapsule stratospheric airships

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Chinese Journal of Aeronautics 2024年第6期37卷 137-150页

作者： Zhiguang SHI Wei huo Zongyu ZUO School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China Beijing Near Space Airship Technology Development Co. LtdBeijing 100070China

The current study focuses on the motion-pressure coupled control for a multicapsule stratospheric airship and transforms the path-tracking and heading-hold control of airships into guidance tracking with a time-varying weighted sum of longitudinal and lateral velocities by the definition of compound ***,an improved nonlinear predictive control method is provided to reduce the control energy consumption by the rolling optimization of controller parameters based on finite time intervals,ensuring infinite-time path-tracking ***,combined with the proposed cyclic regulation process of safe pressure between internal and external capsules,this study can fully reflect the force-thermal coupled rule of airships under the actions of atmospheric environment and maneuvering force,while evaluating the long-endurance capability of airships under the conditions of safe superheating and *** effectiveness of the motionpressure coupled controller was verified through numerical simulations,which can overcome the influence of environmental wind and achieve a tracking effect for the desired cruise path and compound *** airspeed provided during the cyclic circadian time caused the maximum superheating of the helium controlled within 30*** helium in the internal and external capsules achieved circadian *** equivalent micropore diameter of the capsule of 5 mm can achieve 55 days of long-endurance *** controller satisfies the requirements of cruise-flight application modes for multicapsule stratospheric airships with important engineering value.

关键词： Compound speed Nonlinear predictive control Cyclic pressure regulation Long-endurance capability Stratospheric airship

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