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Ginsenoside Rd Induces Differentiation of Myeloid Leukemia Cells via Regulating ERK/GSK-3βSignaling Pathway

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Chinese Journal of Integrative Medicine 2024年第7期30卷 588-599页

作者： JIANG Yu-xia ZHAO Yan-na YU Xiao-ling yin li-ming Department of Hematology Tongde Hospital of Zhejiang ProvinceHangzhou310012China Institute of Hematology Research the First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Chinese Medicine)Hangzhou310006China

Objective To investigate the role of ginsenoside Rd(GRd)in acute myeloid leukemia(AML)cell *** AML cells were treated with GRd(25,50,100 and 200µg/mL),retinoic acid(RA,0.1g/L)and PD98059(20 mg/mL)for 72 h,cell survival was detected by methylthiazolyldiphenyl-tetrazolium bromide and colony formation assays,and cell cycle was detected by flow *** morphology and differentiation were observed by Wright-Giemsa staining,peroxidase chemical staining and cellular immunochemistry assay,*** protein expression levels of GATA binding protein 1(GATA-1),purine rich Box-1(PU.1),phosphorylated-extracellular signal-related kinase(p-ERK),ERK,phosphorylated-glycogen synthase kinase-3β(p-GSK3β),GSK3βand signal transducer and activator of transcription 1(STAT1)were detected by Western ***-six mice were randomly divided into 3 groups using a random number table:model control group(non-treated),GRd group[treated with 200 mg/(kg·d)GRd]and homoharringtonine(HTT)group[treated with 1 mg/(kg·d)HTT].A tumor-bearing nude mouse model was established,and tumor weight and volume were *** of subcutaneous tumor tissue were observed after hematoxylin and eosin ***1 and GATA-1 expressions were detected by immunohistochemical *** The cell survival was inhibited by GRd in a dose-dependent manner and GRd caused G0/G1 cell arrest(plicited upregulation of p-ERK,p-GSK-3βand STAT1 expressions in cells,and reversed the effects of PD98059 on inhibiting the expressions of peroxidase,GATA-1 and PU.1(P<0.05).After GRd treatment,tumor weight and volume of mice were decreased,and tumor cells underwent massive apoptosis and necrosis(P<0.05).WT1 level was decreased,and GATA-1 level was significantly increased in subcutaneous tumor ti

关键词： ginsenoside Rd myeloid leukemia survival differentiation extracellular signal-related kinase signaling pathway

江西省某三甲医院产ESBLs肺炎克雷伯菌感染的健康与经济负担

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中华医院感染学杂志 2024年第5期34卷 775-780页

作者：陈西卓李卓献薛天琴李胤铭唐玉清华中科技大学医药卫生管理学院湖北武汉430030 岳阳市妇幼保健院医务部病案管理办湖南岳阳414000 湖北省人文社科重点研究基地——农村健康服务研究中心湖北武汉430030

目的从医院视角下明确产超广谱β-内酰胺酶(ESBLs)肺炎克雷伯菌感染导致的健康与经济负担,以期为细菌耐药相关政策干预的评估与优化提供实证依据。方法收集我国中部某省一家公立综合三甲医院出院时间在2018-2019年的170874例出院患者... 详细信息

目的从医院视角下明确产超广谱β-内酰胺酶(ESBLs)肺炎克雷伯菌感染导致的健康与经济负担,以期为细菌耐药相关政策干预的评估与优化提供实证依据。方法收集我国中部某省一家公立综合三甲医院出院时间在2018-2019年的170874例出院患者病案数据,其中产ESBLs肺炎克雷伯菌感染为阳性感染组489例、非产ESBLs肺炎克雷伯菌感染为阴性感染组1162例和非肺炎克雷伯菌感染为非感染组169223例。利用倾向得分匹配法(PSM)、Cox比例风险回归模型、多状态模型和费用成本转换法等计算阳性感染组相对于其他两组分别导致的死亡风险、额外床日数和额外住院成本。结果经PSM匹配,阳性感染组、阴性感染组和非感染组三组分别纳入489、489和43353例样本。阳性感染患者的死亡风险是非感染患者的1.96倍(P<0.05)。但以阴性感染组为对照时,感染未增大患者的死亡风险。多状态模型结果显示,阳性感染患者相较于非感染患者和阴性感染患者(即归因于产ESBLs肺炎克雷伯菌感染)产生的额外床日数分别为7.99d/例和4.01d/例。而相应产生的额外住院成本分别为14226.34元/例和7139.88元/例。结论产ESBLs肺炎克雷伯菌感染会增大患者的死亡风险,延长患者的住院天数,增加患者的住院成本。医院应加强感染和耐药情况的监测,优化相关成本管控。

关键词：细菌耐药超广谱β-内酰胺酶肺炎克雷伯菌多状态模型医院视角健康负担经济负担

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基于文献计量的根际激发效应研究进展与趋势

土壤通报 2024年第3期55卷 876-885页

作者：姚忠凯刘丹阴黎明淳心林俊杰重庆三峡学院重庆市三峡库区水质演变与污染防治重点实验室重庆万州404100 重庆三峡职业学院农林科技学院重庆万州404000 中国科学院沈阳应用生态研究所辽宁沈阳110016

为了解根际激发效应(RPE)的研究进展和趋势,以Web of Science核心合集数据库中216篇RPE的研究论文为数据源,通过CiteSpace、VOS viewer对发文数量、平均/总被引频次及国家、机构、作者等进行了分析。结果表明:RPE研究大致可分为三个阶段... 详细信息

为了解根际激发效应(RPE)的研究进展和趋势,以Web of Science核心合集数据库中216篇RPE的研究论文为数据源,通过CiteSpace、VOS viewer对发文数量、平均/总被引频次及国家、机构、作者等进行了分析。结果表明:RPE研究大致可分为三个阶段:初始期(1984~1995年)、稳定发展期(1996~2014年)和快速增长期(2015~2022年)。美国总发文第一且中介中心性最高,国际影响力最大;中国在2018年后年均发文攀升至第一,在国际影响力方面次于德国,排在第三位。国际上主要以Cheng W、Kuzyakov Y为代表的核心作者群;就研究机构而言,中国科学院发文数量最多。研究热点主要集中在RPE的量化方法、影响因素及调控机制,且大多是采用植物幼苗和在室内盆栽条件下完成的。因此,亟需将室内研究拓展至野外原位条件,综合考虑全球气候变化的影响,改进CO_(2)同位素示踪技术和捕获方法,加强成年树种RPE的种间差异变幅研究,优化Earth-System模型参数,进而准确估算陆地生态系统碳循环对气候变化的响应。

关键词：根际激发效应文献计量土壤有机碳碳循环

Unconventional Fluorescent and Multi-responsive Polyethyleneimine with LCST and UCST Behavior:Synthesis,Characterization and Biological Applications

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Chinese Journal of Polymer Science 2024年第6期42卷 826-837页

作者： Feng-ming yin li-li Wu Shu-Sheng li Xiao-Na Pan Xiao-li Zhu Xu-Bao Jiang Xiang Zheng Kong College of Chemistry and Chemical Engineering University of JinanJinan250022China Shandong Institute for Product Quality Inspection Jinan250102China College of Chemical Engineering Tianjin UniversityTianjin300072China

Non-aromatic fluorescent and multi-responsive materials,exhibiting inherent fluorescence emission and controlled phase change,have garnered significant attention in recent ***,the underlying interaction between their fluorescent properties and phase transition remains *** this study,we synthesized a series of catalyst-free aza-Michael addition-based polyethyleneimine(RFPEI)materials by reacting polyethyleneimine(PEI)with N-isopropyl acrylamide(NIPAM).The resulting RFPEI was comprehensively characterized,and demonstrated dual-phase transition behavior(LCST and UCST)in water,which could be finely tuned by adjusting its composition or external factors such as ***,upon UV irradiation(365 nm),RFPEI exhibited strong fluorescence *** further investigated the effects of NIPAM grafting percentage to PEI,polymer concentration,and pH on the LCST/UCST and fluorescent properties of RFPEI aqueous ***,we showcased the great potential of RFPEI as a versatile tool for physiological cell imaging,trace detection,and controlled release of *** study presents a novel class of stimuli-responsive fluorescent materials with promising applications in the field of biomedicine.

关键词： Polyethyleneimine Multi-responsiveness Intrinsic fluorescence emission Cell imaging Controlled drug release

KIM1、TIMP2及炎症指标与2型糖尿病肾病进展风险的相关性研究

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海南医学 2024年第14期35卷 2036-2041页

作者：孙小芳尹丽明包利文廖智威付文金王少波广东医科大学厚街临床医学院内分泌科广东东莞523960 广东医科大学厚街临床医学院检验科广东东莞523960

目的检测不同程度肾脏疾病的糖尿病患者中血清肾损伤分子-1(KIM-1)、金属基质蛋白酶抑制剂-2(TIMP2)、白介素6(IL-6)和C反应蛋白(CRP)的水平,并评估其与糖尿病肾脏进展风险的关系。方法选取2022年3月至2023年3月东莞厚街医院收治的65例... 详细信息

目的检测不同程度肾脏疾病的糖尿病患者中血清肾损伤分子-1(KIM-1)、金属基质蛋白酶抑制剂-2(TIMP2)、白介素6(IL-6)和C反应蛋白(CRP)的水平,并评估其与糖尿病肾脏进展风险的关系。方法选取2022年3月至2023年3月东莞厚街医院收治的65例2型糖尿病患者纳入研究,根据患者肾脏病变的严重程度,按照改善全球预后指南将糖尿病肾病(DKD)分为低风险组(n=19)、中风险组(n=22)和高风险组(n=24),同期选择20例体检健康者作为对照组。比较各组受试者血清KIM-1、TIMP-2、IL-6、CRP、糖化血红蛋白(HbAlc)、尿蛋白/肌酐比值(UACR)、低密度脂蛋白胆固醇(LDL-C)、空腹血糖(FPG)、血清总胆固醇(TC)、肾小球滤过率(eGFR)、高密度脂蛋白胆固醇(HDL-C)、25羟维生素D_(3)[(25(OH)D_(3))]和甘油三酯(TG)的水平,采用Pearson法分析血清TIMP-2、KIM-1与DKD糖脂代谢、肾功能指标的相关性,利用受试者工作(ROC)曲线分析血清KIM-1、TIMP-2、IL-6、CRP、KIM-1与TIMP-2联合检测对DKD疾病进展的预测价值。结果四组受检者血清LDL-C、HDL-C和CRP水平比较差异均无统计学意义(P>0.05);对照组血清FPG、HbAlc、TIMP2、KIM-1水平分别为(5.13±0.56)mmol/L、(5.56±0.30)%、(4.91±0.76)ng/mL、(0.46±0.33)ng/mL,明显低于低风险组的(12.17±9.82)mmol/L、(9.45±2.46)%、(11.51±25.01)ng/mL、(1.00±0.68)ng/mL及中风险组的(11.35±10.63)mmol/L、(9.73±2.82)%、(30.23±17.42)ng/mL、(1.26±1.31)ng/mL和高风险组的(8.04±7.69)mmol/L、(9.27±2.21)%、(30.51±46.01)ng/mL、(1.63±1.09)ng/mL,而低风险组的血清中TIMP2、KIM-1水平明显低于中风险组、高风险组,差异均有统计学意义(P<0.05);高风险组患者的血清CREA、IL-6水平分别为(122.00±79.23)μmmol/L、(3.51±5.92)pg/mL,明显高于低风险组的(77.00±42.70)μmmol/L、(0.50±2.79)pg/mL和中风险组的(74.00±32.25)μmmol/L、(1.34±3.61)pg/mL,差异均有统计学意义(P<0.05);经Spearman相关分析结果显示2型糖尿病肾病患者TIMP-2、KIM-1与HbA1c、IL-6、UACR均呈正相关(P<0.05),而TIMP-2、KIM-1与eGFR呈负相关(P<0.05);经ROC分析结果显示,KIM-1、TIMP-2、IL-6、CRP以及KIM-1联合TIMP-2预测2型糖尿病肾病进展风险的曲线下面积(AUC)分别为0.869、0.867、0.751、0.633和0.935,KIM-1联合TIMP-2预测较各单一指标预测的准确度更高。结论血清KIM-1、TIMP-2、IL-6、CRP水平升高与2型糖尿病肾病疾病进展密切相关,其中KIM-1联合TIMP-2预测2型糖尿病肾病进展风险的价值较高。

关键词：糖尿病肾病肾损伤分子-1 金属基质蛋白酶抑制剂-2 炎症因子相关性

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A Potential Degree Sequence Problem of the Loebl-Komlós-Sós Conjecture

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Acta Mathematicae Applicatae Sinica 2024年

作者： Guang-ming li Jian-hua yin School of Mathematics and Statistics Hainan University

A non-increasing sequenceπ=(d1,..., dn) of nonnegative integers is said to be a graphic sequence if it is realizable by a simple graph G on n vertices. In this case, G is referred to as a realization ofπ. In terms of graphic sequences, the Loebl-Komlós-Sós conjecture states that for any integers k and n, if π=(d1,..., dn)is a graphic sequence with d「n/2」≥k, then every realization ofπcontains all trees with k edges as *** problem can be viewed as a forcible degree sequence problem. In this paper, we consider a potential degree sequence problem of the Loebl-Komlós-Sós conjecture, that is, we prove that for any integers k and n, ifπ=(d1,..., dn) is a graphic sequence with d「n/2」≥k, then there is a realization ofπcontaining all trees with k edges as subgraphs.

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Effect of the Filling liquid Ratio on the Thermal Performance of a Novel Thermal Diode with Wick

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Journal of Thermal Science 2024年第2期33卷 396-407页

作者： li Zhiyong ming Tingzhen ZHANG Heyu ZHAO Sitong WANG Qinggang CAI Cunjin yin Kui FANG Yueping WU Yongjia School of Civil Engineering and Architecture Wuhan University of TechnologyWuhan430070China Sanya Science and Education Innovation Park Wuhan University of TechnologySanya572004China Deparment of Four Station Logistics AcademyXuzhou221000China School of Energy Construction and EnvironmentCoventry UniversityPriory StreetCoventryCV15FBUK

The application of thermal diodes,which allow heat to flow more readily in one direction than the other,is an important way to reduce energy consumption in buildings and enhance the battery heat dissipation of electric *** on various factors including the specific design,materials used,and operating conditions,the convective thermal diode can exhibit the best thermal rectification effect in intended applications compared to the other thermal *** this study,a novel convective thermal diode with a wick was proposed based on the phase change heat transfer *** design takes advantage of both capillary forces provided by the wick and gravity to achieve enhanced unidirectional heat transfer performance for the designed convective thermal *** effect of the filling liquid ratio on the thermal performance of the thermal diode was experimentally investigated,which was in good agreement with the theoretical *** research findings showed that with an optimal liquid filling ratio of 140%,the thermal diode with a wick can achieve a better thermal rectification ratio when subjected to a lower heating power,and the maximum thermal rectification ratio of 21.76 was experimentally achieved when the heating power of the thermal diode was 40 W.

关键词： filling liquid ratio thermal diode wick structure gravity

XOR spin logic operated by unipolar current based on field-free spin-orbit torque switching induced by a lateral interface

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Rare Metals 2024年第8期43卷 3868-3875页

作者： Yan-Ru li Mei-yin Yang Guo-Qiang Yu Bao-Shan Cui Jin-Biao liu Yong-liang li Qi-ming Shao Jun Luo Key Laboratory of Microelectronic Devices and Integrated Technology Institute of MicroelectronicsChinese Academy of Sciences (IMECAS) University of Chinese Academy of Sciences (UCAS) Songshan Lake Materials Laboratory Institute of Physics Chinese Academy of Sciences Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education Lanzhou University Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology

Spin logics have emerged as a promising avenue for the development of logic-in-memory *** particular,the realization of XOR spin logic gates using a single spin-orbit torque device shows great potential for low-power stateful logic circuits in the next *** this study,we successfully obtained the XOR logic gate by utilizing a spin-orbit torque device with a lateral interface,which was created by local ion implantation in the Ta/Pt/Co/Ta Hall device exhibiting perpendicular magnetic *** angle of the lateral interface is set at 45°relative to the current direction,leading to the competition between symmetry breaking and current-driven Néel-type domain wall ***,the field-free magnetic switching reversed is realized by the same sign of current amplitude at this *** on this field-free magnetic switching behavior,we successfully proposed an XOR logic gate that could be implemented using only a single spin-orbit torque Hall *** study provides a potentially viable approach toward efficient spin logics and in-memory computing architectures.

关键词： Filed-free magnetic switching Spin–orbit torque XOR logic gate Lateral interface

Discontinuity development patterns and the challenges for 3D discrete fracture network modeling on complicated exposed rock surfaces

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第6期16卷 2154-2171页

作者： Wen Zhang ming Wei ying Zhang Tengyue li Qing Wang Chen Cao Chun Zhu Zhengwei li Zhenbang Nie Shuonan Wang Han yin College of Construction Engineering Jilin UniversityChangchun130026China liaoning Nonferrous Geological Exploration and Research Institute Co. Shenyang110013China School of Earth Sciences and Engineering Hohai UniversityNanjing210098China Northeastern University Shenyang110819China

Natural slopes usually display complicated exposed rock surfaces that are characterized by complex and substantial terrain undulation and ubiquitous undesirable phenomena such as vegetation cover and *** study presents a systematic outcrop research of fracture pattern variations in a complicated rock slope,and the qualitative and quantitative study of the complex phenomena impact on threedimensional(3D)discrete fracture network(DFN)*** the studies of the outcrop fracture pattern have been so far focused on local variations,thus,we put forward a statistical analysis of global *** entire outcrop is partitioned into several subzones,and the subzone-scale variability of fracture geometric properties is analyzed(including the orientation,the density,and the trace length).The results reveal significant variations in fracture characteristics(such as the concentrative degree,the average orientation,the density,and the trace length)among different ***,the density of fracture sets,which is approximately parallel to the slope surface,exhibits a notably higher value compared to other fracture sets across all *** improve the accuracy of the DFN modeling,the effects of three common phenomena resulting from vegetation and rockfalls are qualitatively analyzed and the corresponding quantitative data processing solutions are ***,the 3D fracture geometric parameters are determined for different areas of the high-steep rock slope in terms of the subzone *** results show significant variations in the same set of 3D fracture parameters across different regions with density differing by up to tenfold and mean trace length exhibiting differences of 3e4 *** study results present precise geological structural information,improve modeling accuracy,and provide practical solutions for addressing complex outcrop issues.

关键词： Complicated exposed rock surfaces Discontinuity characteristic variation Three-dimensional discrete fracture network modeling Outcrop study Vegetation cover and rockfalls