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总体国家安全观下深化中俄能源合作的法律机制构建

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哈尔滨工业大学学报（社会科学版） 2024年第4期26卷 26-34页

作者：哈书菊曹熹黑龙江大学法学院哈尔滨150080

能源安全是国家安全的重要组成部分。在大国竞争激烈和地区冲突频发的背景下,加强中俄能源合作对于增进双方政治互信、促进经济发展以及实现社会稳定和环保目标具有重要意义,是落实总体国家安全观的关键举措。随着中俄能源合作从传统能... 详细信息

能源安全是国家安全的重要组成部分。在大国竞争激烈和地区冲突频发的背景下,加强中俄能源合作对于增进双方政治互信、促进经济发展以及实现社会稳定和环保目标具有重要意义,是落实总体国家安全观的关键举措。随着中俄能源合作从传统能源交易扩展至全产业链,现行法律框架已不足以支撑日益加深的合作需求,无法有效应对复杂局面和挑战。在总体国家安全观的引领下,亟须构建全面的法律机制,以深化中俄之间的能源合作。这需要坚持能源安全、能源主权、互惠互利以及绿色发展的原则,全面统筹政治、经济、社会和环境安全多重维度,完善能源对话机制,加强投资保护,建立价格协商机制,探索生态保护措施。

关键词：总体国家安全观中俄合作能源合作能源安全法律机制

一种溶瘤腺病毒抑制肿瘤细胞的作用机制及特异性研究

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上海医药 2024年第15期45卷 65-68页

作者：琚姝王爱霞上海三维生物技术有限公司上海201206

研究重组人5型腺病毒(H101)抑制肿瘤细胞增殖的作用机制及特异性。采用体外细胞培养方法及TCID_(50)检测病毒滴度法,发现H101对p53^(−)的肿瘤细胞有显著的选择性复制作用,其活性可以对p53突变的肿瘤组织产生溶瘤作用从而达到治疗效果;... 详细信息

研究重组人5型腺病毒(H101)抑制肿瘤细胞增殖的作用机制及特异性。采用体外细胞培养方法及TCID_(50)检测病毒滴度法,发现H101对p53^(−)的肿瘤细胞有显著的选择性复制作用,其活性可以对p53突变的肿瘤组织产生溶瘤作用从而达到治疗效果;采用体外药效学实验检测H101对10种肿瘤细胞株的抑增殖作用,通过计算IC_(50)、IC_(90)进一步得出小鼠肝癌细胞Hepa1-6、小鼠胰腺癌细胞Pan02、小鼠神经胶质瘤细胞GL261对H101较为敏感。研究结果表明H101对已获批的适应证之外的其他肿瘤细胞也有溶瘤作用,具有适应证扩展的潜力。本研究可为后续开展动物模型的体内药效实验和使用剂量的选择提供参考。

关键词：溶瘤腺病毒肿瘤治疗体外药效学增殖抑制

降低新生儿重症监护室极低出生体重早产儿抗生素使用时间的质量改进研究

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中国当代儿科杂志 2024年第7期26卷 736-742页

作者：全美盈冯淑菊张玉王晨张乐嘉李正红中国医学科学院北京协和医院儿科/疑难重症及罕见病国家重点实验室北京100730

目的应用质量改进的方法,制定降低新生儿重症监护室极低出生体重(very low birth weight,VLBW)早产儿抗生素使用时间的有效措施,以减少抗生素的使用。方法以住院VLBW早产儿为研究对象,以2020年11月—2021年6月VLBW早产儿住院期间抗生素... 详细信息

目的应用质量改进的方法,制定降低新生儿重症监护室极低出生体重(very low birth weight,VLBW)早产儿抗生素使用时间的有效措施,以减少抗生素的使用。方法以住院VLBW早产儿为研究对象,以2020年11月—2021年6月VLBW早产儿住院期间抗生素使用时间占住院时间百分比作为基线值,以降低抗生素使用时间占住院时间百分比为具体质量改进目标。应用帕累托图分析影响早产儿抗生素使用时间的因素。根据抗生素使用的各个环节构建关键驱动图,确定质量改进的关键环节和具体的干预措施。通过运行图监测VLBW早产儿抗生素使用时间占住院时间百分比的变化直至达到质量改进目标。结果2020年11月—2021年6月VLBW早产儿抗生素使用时间占住院时间百分比在质量改进前为49%(基线值),设定质量改进目标为12个月内将该百分比降低10%。帕累托图分析显示影响早产儿的抗生素使用时间的主要因素为:抗生素使用不规范;无感染证据时未及时停用抗生素;中心静脉置管留置时间长;袋鼠式护理应用不足;肠内营养进程延迟。质量改进采取的干预措施包括:(1)制定败血症评估管理规范;(2)对医护人员进行关于早产儿抗生素合理使用的宣教;(3)查房时监督抗生素使用规范的执行性;(4)无明确感染表现且血培养阴性者,抗生素使用36 h后停止使用;(5)减少中心静脉置管及肠外营养时间,降低早产儿感染风险。控制图显示,随着干预措施的实施,VLBW早产儿抗生素使用时间占住院时间百分比由49%降低至32%,具有统计学意义。结论应用基于统计原理、过程控制的质量改进工具及质量改进措施后,VLBW早产儿的抗生素使用时间可得到显著降低。

关键词：质量改进抗生素管理新生儿重症监护室极低出生体重儿早产儿

晚泥盆世弗拉期-法门期(F-F)之交海洋氧化:来自华南垌村剖面碳酸盐岩Ce异常证据

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地层学杂志 2024年第1期48卷 77-86页

作者：吕苗鞠东澍王姝蘅周义涵李思彤李志源李光陈波中国科学院南京地质古生物研究所实验技术中心江苏南京210008 南京师范大学附属中学江苏南京210003 山东省煤田地质局第三勘察大队山东泰安271000 中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室江苏南京210008

晚泥盆世弗拉期-法门期(Frasnian/Famennian,以下简称F-F)之交的生物灭绝事件是显生宙以来五大生物灭绝事件之一,这次灭绝一般认为与全球海洋缺氧有关。华南广西桂林是我国F-F地层最为发育、研究程度最高的地区之一,本研究利用碳酸盐岩C... 详细信息

晚泥盆世弗拉期-法门期(Frasnian/Famennian,以下简称F-F)之交的生物灭绝事件是显生宙以来五大生物灭绝事件之一,这次灭绝一般认为与全球海洋缺氧有关。华南广西桂林是我国F-F地层最为发育、研究程度最高的地区之一,本研究利用碳酸盐岩Ce异常指标,对桂林地区垌村剖面F-F期间的古氧化还原条件进行了重建。结果表明,F-F期间碳同位素的正漂移对应着表层海洋的氧化而非先前广泛认为的缺氧。将这一发现与先前同一地区的地球化学和古生物数据相结合并进行综合分析,我们认为气候快速波动在F-F期间生物与环境巨变中扮演了最为关键的角色。气候变冷使得海水氧溶解量增加和赤道—极地之间海水温度梯度变大,海洋表层环流和垂直翻转变得更加活跃,导致深水营养物质向海洋表层的输送量增多,有效促进表层海洋初级生产力和有机碳埋藏通量升高,进而引起全球海水碳同位素值的提高。因此,本研究支持全球气候快速变冷而非海洋缺氧导致了F-F大灭绝事件。

关键词： F-F事件气候变冷海洋氧化碳同位素稀土元素 Ce异常

Effects of electroacupuncture on pain sensation in a rat model of hyperalgesia with nicotine dependence

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Neural Regeneration Research 2022年第4期17卷 905-910页

作者： shu-ju Wang Yan-Ping Zhang Keith A.Candiotti College of Acupuncture and Orthopedics Hubei University of Chinese Medicine/Hubei Provincial Collaborative Innovation Center of Preventive Treatment by Acupuncture and MoxibustionWuhanHubei ProvinceChina Department of Anesthesiology Perioperative Medicine and Pain ManagementUniversity of Miami Miller School of MedicineMiamiFLUSA

Tobacco smoking is considered to be one of the main risk factors in the development of chronic ***-term chronic exposure to nicotine and other forms of tobacco have been shown to be associated with an increased incidence of *** have shown that acupuncture can help smokers to reduce their desire to smoke,reduce their withdrawal symptoms,and avoid a relapse after ***,little has been reported about the effects of acupuncture on pain sensitivity caused by long-term *** of hyperalgesia were established in rats exposed to nicotine for 6 *** 6 weeks of continuous nicotine exposure,electroacupuncture at bilateral acupoints Zusanli(ST36)and Taichong(LR3)was performed 20 minutes per day for 6 days at a continuous wave with a frequency of 2 Hz and a stimulus intensity of 1 m *** results revealed that electroacupuncture treatment increased the mechanical response threshold of hind paw of nicotine-dependent rats with hyperalgesia and up-regulated the protein expression of pain-related factorsμ-opioid receptor,β-endorphin and glutamic acid decarboxylase 65 in the spinal cord and midbrain periaqueductal gray and the protein expression of glutamic acid decarboxylase 67 in the spinal *** findings suggest that electroacupuncture treatment has positive analgesic effects on pain sensitivity caused by long-term chronic nicotine *** possible mechanism for the improved analgesia is that electroacupuncture increases the expression of painrelated factors in the spinal cord and midbrain periaqueductal *** study was approved by Institutional Animal Care and Use Committee(IACUC)of the University of Miami(#18-167)on December 12,2018.

关键词： chronic pain electroacupuncture glutamic acid decarboxylase 65 glutamic acid decarboxylase 67 hyperalgesia nicotine dependence pain sensation smoking β-endorphin μ-opioid receptor

Photosynthetic response dynamics in the invasive species Tithonia diversifolia and two co-occurring native shrub species under fluctuating light conditions

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Plant Diversity 2024年第2期46卷 265-273页

作者： ju Li shu-Bin Zhang Yang-Ping Li CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglunMengla 666303YunnanChina University of Chinese Academy of Sciences Beijing 100049China

To determine the invasiveness of invasive plants,many studies have compared photosynthetic traits or strategies between invasive and native ***,few studies have compared the photosynthetic dynamics between invasive and native species during light *** compared photosynthetic induction,relaxation dynamics and leaf traits between the invasive species,Tithonia diversifolia and two native species,Clerodendrum bungei and Blumea balsamifera,in full-sun and shady *** photosynthetic dynamics and leaf traits differed among *** showed a slower induction speed and stomatal opening response but had higher average intrinsic water-use efficiency than the two native species in full-sun ***,the slow induction response may be attributed to the longer stomatal length in *** had a significant effect on photosynthetic dynamics in *** and *** but not in *** shady habitat,*** had a faster photosynthetic induction response than in full-sun habitat,leading to a higher average stomatal conductance during photosynthetic induction in *** than in the two native *** contrast,*** had a larger stomatal length and slower photosynthetic induction and relaxation response in shady habitat than in full-sun habitat,resulting in higher carbon gain during photosynthetic ***,in both habitats,*** had an overall higher carbon gain during light fluctuations than the two native *** results indicated that *** can adopt more effective response strategies under fluctuating light environments to maximize carbon gain,which may contribute to its successful invasion.

关键词： Invasive plant Photosynthetic induction Photosynthetic relaxation Carbon gain Stomatal traits Tithonia diversifolia

解毒活血汤调控YAP/ACSL4通路抑制铁死亡治疗急性肾损伤的作用与机制研究

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中国中药杂志 2024年第1期49卷 151-161页

作者：程冉田瑞敏黄丽华王晓婉郭珊吴爱君黎创陈静李淑菊陈明毛炜徐鹏广州中医药大学第二附属医院&广东省中医院省部共建中医湿证国家重点实验室广东广州510120 广州中医药大学第二临床医学院广东广州510405 广东省中医药科学院广东广州510006 澳门科技大学中医药学院中国澳门999078 黑龙江省中医药科学院黑龙江哈尔滨150036

解毒活血汤出自王清任《医林改错》,是国医大师张琪教授根据急性肾损伤(acute kidney injury,AKI)热毒瘀滞病机从古方中筛选出应用临床数十年的有效方剂,该文拟从调控铁死亡(ferroptosis)角度阐释解毒活血汤对AKI的治疗作用及其潜在机... 详细信息

解毒活血汤出自王清任《医林改错》,是国医大师张琪教授根据急性肾损伤(acute kidney injury,AKI)热毒瘀滞病机从古方中筛选出应用临床数十年的有效方剂,该文拟从调控铁死亡(ferroptosis)角度阐释解毒活血汤对AKI的治疗作用及其潜在机制。将32只雄性C57BL/6小鼠随机分为4组:正常组、模型组及解毒活血汤低、高剂量组,每组8只。由于临床AKI的治疗普遍以支持或替代疗法为主,尚无特效药,故该实验未设置阳性药物组。解毒活血汤低剂量组对应0.5倍的临床等效剂量,高剂量组则对应临床等效剂量,予以每日晨间灌胃,连续干预7 d;正常组及模型组小鼠分别灌以相应体积的纯水。给药第5天时,除正常组外其余各组小鼠均按20 mg·kg^(-1)的剂量腹腔注射顺铂溶液进行造模,正常组给予生理盐水注射。造模72 h后取材,留取小鼠血清及肾脏组织,检测血清肌酐(serum creatinine,Scr)、尿素氮(blood urea nitrogen,BUN)水平以评价小鼠肾脏功能变化;酶联免疫吸附测定(enzyme-linked immunosorbent assay,ELISA)法检测血清肾损伤分子1(kidney injury molecule 1,KIM-1)的表达水平;苏木素-伊红(hematoxylin-eosin,HE)染色法观察小鼠肾组织病理学改变;过碘酸雪夫(periodic acid-Schiff,PAS)染色法观察肾脏糖原沉积变化;普鲁士蓝染色观察肾组织铁沉积水平;生化比色法检测肾组织中还原型谷胱甘肽(glutathione,GSH)含量、超氧化物歧化酶(superoxide dismutase,SOD)以及过氧化氢酶(catalase,CAT)活力。采用Wes-tern blot法检测小鼠肾组织中酰基辅酶A合成酶长链家族成员4(acyl-CoA synthetase long chain family member 4,ACSL4)、溶血磷脂酰胆碱酰基转移酶3(lysophosphatidylcholine acyltransferase 3,LPCAT3)及Hippo通路关键分子Yes相关蛋白(Yes-associated protein,YAP)蛋白表达;免疫组化法检测YAP在肾组织中的定位与相对表达;再采用实时荧光定量PCR法检测ACSL4及谷胱甘肽过氧化物酶4(glutathione peroxidase 4,GPX4)mRNA表达。结果显示,与正常组相比,顺铂诱导的AKI小鼠血清中Scr、BUN、KIM-1水平显著升高;肾组织病理显示,模型组小鼠肾小管上皮细胞发生显著萎缩坏死脱落,肾小管刷状缘消失,管内大量蛋白管型填充,小管空泡样变性,肾间质增宽且可见水肿,肾脏结构严重损伤,肾小管损伤评分显著升高;肾组织部分区域有明显的铁沉积;肾组织GSH含量、SOD及CAT活力显著降低;同时,肾组织中铁死亡标志分子ASCL4、LPCAT3显著升高,GPX4显著降低,YAP显著上调。与模型组相比,高剂量解毒活血汤可有效保护肾脏功能,降低Scr、BUN、KIM-1水平,减轻肾脏病理损伤及糖原沉积和铁沉积;提升肾组织中GSH含量、SOD及CAT活力。进一步的机制研究表明,解毒活血汤组ACSL4、LPCAT3及YAP蛋白表达较模型组显著降低,而GPX4水平显著升高。综上,解毒活血汤可以通过调控YAP/ACSL4信号通路抑制铁死亡,对顺铂诱导的AKI发挥保护作用。

关键词：解毒活血汤急性肾损伤(AKI) 铁死亡 Yes相关蛋白(YAP) 酰基辅酶A合成酶长链家族成员4(ACSL4)

Electroacupuncture Promotes Angiogenesis in Mice with Cerebral Ischemia by Inhibiting miR-7

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Chinese Journal of Integrative Medicine 2024年第6期30卷 543-550页

作者： YU Qian shu Shi ju Xin-yao PENG Wei REN Xue-qi SI shu-han SONG Shi-zhen XIE Xue-yun FANG Bang-jiang ZHOU shuang School of Acupuncture-Moxibustion and Tuina Shanghai University of Traditional Chinese MedicineShanghai201203China College of Basic Medicine Shanghai University of Traditional Chinese MedicineShanghai201203China Department of Emergency Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai200032China

Objective To observe the angiogenesis effect of electroacupuncture(EA)at shuigou acupoint(GV 26)in the treatment of cerebral ischemia,and explore the value of miRNA-7(miR-7)in *** First,48 mice were randomly divided into sham operation,middle cerebral artery occlusion(MCAO)model,and EA treatment *** 9 mice were divided into carrier control group,miR-7 knockout group and miR-7 overexpression group(n=3 each group).Finally,20 mice were divided into model and carrier control group,model and miR-7 knockout group,EA treatment and carrier control group and EA treatment and miR-7 overexpression group,with 3–6 mice in each *** MCAO model was established in the MCAO and EA *** deficit score and 2,3,5-triphenyltetrazolium chloride(TTC)staining were used to evaluate the severity of cerebral ***-eosin staining was used to describe basic pathological *** was used to quantify cerebral microvessel ***-time PCR and Western blot were used to detect the expression of miR-7 and its downstream target genes Krüppel-like factor 4/vascular endothelial growth factor(KLF4/VEGF)and angiopoietin-2(ANG-2)in the ischemic cerebral *** After EA,neurological deficit scores and infarction volumes decreased,and the density of cerebral microvessels *** the MCAO group,miR-7 expression was higher than that in the sham group(P<0.01).After EA at GV 26,miR-7 expression decreased(P<0.01)and the expression of downstream target genes KLF4/VEGF and ANG-2 increased as compared with the MCAO group(P<0.01).After EA combined with overexpression of miR-7,the expression of downstream target genes KLF4/VEGF and ANG-2 decreased compared to the control EA group(P<0.01).After miR-7 knockdown,the expression of KLF4/VEGF and ANG-2 increased(P<0.05 or P<0.01).Conclusions EA could promote angiogenesis in MCAO mice likely by inhibiting the expression of miR-7 and relieving inhibition of downstream target genes KLF4/VEG

关键词： electroacupuncture cerebral ischemia miRNA-7 angiogenesis shuigou(GV 26) acupuncture points

Iterative FEA Method for Load Distribution of Flexible Supporting Thin-section Ball Bearing

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Journal of Harbin Institute of Technology(New Series) 2015年第1期22卷 9-14页

作者： ju shu Liqin Wang Yuze Mao Yuting Ding School of Mechatronics Engineering Harbin Institute of Technology

To figure out the load distribution of thin-section rolling bearing supported by flexible structure with squirrel cage and the distribution's influence on bearing life,an iterative FEA method is proposed to use the result calculated from the Quasi-Dynamic model based on the rigid support hypothesis. The contact angle,contact position and stiffness of equivalent spring are modified during the iterative FEA to optimize the FEA model,and then the bearings' life can be predicted when the error is below 0.5%. It can be concluded that from the analysis results the load distribution under flexible support is more uniform than that of the rigid support,while the maximum load decreases by 11.2% and bearing life increases by 14.7%. The analysis result of different values of thickness of bearing house,rings and hollow shaft demonstrates the thicknesses of bearing house and hollow shaft have a greater influence on the load's uniformity and bearing's life than those of the rings.

关键词： flexible support with squirrel cage iterative FEA