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Control of Heterometallic Three-Dimensional Macrocycles with Aromatic Stacks in Tunable Host Cavities

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Chinese Journal of Chemistry 2018年第7期36卷 594-598页

作者： Wen-Xi Gao qi-Jia Fan Yue-Jian Lin Guo-Xin jin Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials State Key Laboratory of Molecular Engineering of Polymers Collaborative Innovation Center of Chemistry for Energy Materials Department of ChemistryFudan University Shanghai 200433 China

Using coinage metal （Cu（Ⅱ）, Ag（Ⅰ）） hinges, two sets of heterometallic molecular capsules with analogous open-ended cavities were prepared based on the half-sandwich rhodium fragments. In the case of [Rh4Cu4] cages, up to six-fold-stacked host-guest structures were formed by varying the cavity＇s dimensions. Moreover, the series of capsules were demonstrated to self-fine-tune to form multi-heteroguest arrays via favourable donor-acceptor interactions and Ag-π interactions, as evidenced from single-crystal X-ray analysis.

关键词： host-guest chemistry open-ended cavity heterometallic capsule half-sandwich rhodium fragments

New arbutin derivatives from the leaves of Heliciopsis lobata with cytotoxicity

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Chinese Journal of Natural Medicines 2016年第10期14卷 789-793页

作者： qi wei-Yan OU Na WU Xiao-Dong XU Han-Mei Department of Marine Pharmacy School of Life Science and TechnologyChina Pharmaceutical UniversityNanjing210009China

Heliciopsis lobata is a medicinal plant, which is exclusively used to treat tumor in Li folk region. Two new arbutin derivatives, 6'-((E)2-methoxy-5-hydroxycinnamoyl) arbutin(1) and 2'-((E)2, 5-dihydroxycinnamoyl) arbutin(2) along with five known compounds(3–7), were isolated from the leaves of Heliciopsis lobata. Their structures were elucidated on the basis of extensive spectroscopic interpretations. They were evaluated for their potential anticancer activity. Compounds 6 and 7 exhibited cytotoxicity against MGC-803 cells with IC_(50) values being 44.1 and 11.3 μg·m L^(–1), respectively. Additionally, compounds 1, 2 and 5–7 exhibited a moderate inhibition of MGC-803 cells invasion; compound 2 at 20 μg·m L^(–1) inhibited the invasion of MGC-803 cells by 43.0%, compared with the controls..

关键词： Heliciopsis lobata Arbutin Anticancer effects Invasion

Structural and elastic properties of Ce2O3 under pressure from LDA+U method

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Frontiers of Physics 2013年第4期8卷 405-411页

作者： Yuan-Yuan qi Zhen-wei Niu Cai Cheng Yan Cheng Institute of Atomic and Molecular Physics Sichuan University

We investigate the structural and elastic properties of hexagonal Ce2O3 under pressure using LDA+U scheme in the frame of density functional theory(DFT).The obtained lattice constants and bulk modulus agree well with the available experimental and other theoretical *** pressure dependences of normalized lattice parameters a/a0 and c/c0,ratio c/a,and normalized primitive volume V /V0 of Ce2O3 are ***,the pressure dependences of elastic properties and three anisotropies of elastic waves of Ce2O3 are investigated for the frst *** fnd that the negative value of C44 is indicative of the structural instability of the hexagonal structure Ce2O3 at zero temperature and 30 ***,the density of states(DOS) of Ce2O3 under pressure is investigated.

关键词： elastic properties high pressure density functional theory Ce 2 O 3

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十二指肠乳头腺癌危险因素分析

中华消化内镜杂志 2024年第5期41卷 379-383页

作者：詹展刘昆李雯张松汤蓓蔡薇黎琪陈骏王雷沈珊珊江苏大学鼓楼临床医学院消化内科南京210008 南京医科大学鼓楼临床医学院消化内科南京210008 南京大学医学院附属鼓楼医院消化内科南京210008 南京大学医学院附属鼓楼医院病理科南京210008

目的对比十二指肠乳头腺瘤与腺癌的患者临床与内镜特征差别,探索十二指肠乳头腺癌的危险因素,提高乳头肿瘤性质判断的准确性。方法回顾性纳入2018年1月1日至2023年6月1日在南京大学医学院附属鼓楼医院明确诊断为十二指肠乳头腺癌和腺瘤... 详细信息

目的对比十二指肠乳头腺瘤与腺癌的患者临床与内镜特征差别,探索十二指肠乳头腺癌的危险因素,提高乳头肿瘤性质判断的准确性。方法回顾性纳入2018年1月1日至2023年6月1日在南京大学医学院附属鼓楼医院明确诊断为十二指肠乳头腺癌和腺瘤的患者。收集并对比腺癌和腺瘤患者的人口统计学、临床表现、实验室检查、影像学、内镜和病理特征,采用logistic回归分析十二指肠乳头腺癌的危险因素。结果本研究共纳入119例腺癌和171例腺瘤患者,腺癌和腺瘤患者在年龄、体重指数、临床症状、恶性肿瘤家族史、胆管扩张、胰管扩张、病变大小、腺瘤部位分型、EUS分期、EUS胆胰管受累等方面差异均有统计学意义(P<0.05)。单因素logistic回归分析表明,非壶腹周围型病变、超声内镜分期非局限于十二指肠主乳头、超声内镜示胆胰管受累、年龄≥60岁、病变大小≥1.5 cm、临床症状、恶性肿瘤家族史、胆管扩张、胰管扩张为十二指肠乳头腺癌的危险因素(P<0.05)。进一步多因素logistic回归分析评估发现,非壶腹周围型病变(OR=7.00,95%CI:1.44~34.15,P=0.016)、超声内镜分期非局限于十二指肠主乳头(OR=13.77,95%CI:4.69~40.45,P<0.001)、年龄≥60岁(OR=2.52,95%CI:1.23~5.18,P=0.011)、胆管扩张(OR=2.58,95%CI:1.12~5.94,P=0.026)、病变大小≥1.5 cm(OR=2.76,95%CI:1.36~5.59,P=0.005)是十二指肠乳头腺癌的独立危险因素。结论非壶腹周围型病变、超声内镜分期非局限于十二指肠主乳头、年龄≥60岁、胆管扩张、病变大小≥1.5 cm是十二指肠乳头腺癌的独立危险因素。

关键词：十二指肠肿瘤临床特征危险因素

One-dimensional Copper（Ⅱ） Complex Constructed with Nitrate Counter-anion as Bitopic Connector

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Chinese Chemical Letters 2005年第9期16卷 1255-1258页

作者： Chun Hua GE Xiang Dong ZHANG wei GUAN qi Tao LIU Institute of Chemical Science ＆ Engineering Liaoning University Shenyang 110036 Department of Environmental Science Liaoning University Shenyang 110036

Coordination polymer {[Cu（NPPCA）3（NO3）（H20）]-NOyH20}n 1 （ NPPCA = N-（4＇- nitrophenyl）-4-pyridinecarboxamide） has been synthesized by the reaction of NPPCA with copper（H） nitrate in ethanol-water solution and characterized by X-ray diffraction. 1 crystallizes in the monoclinic space, group P21/n, a = 17.341（6）A, b = 6.744（2）A, c = 34.555（12）A, β = 100.493（6）°, V = 3974（2） A^3, Z = 4. Each copper（H） ion has a distorted octahedral coordination geometry. Nitrate anion adopts the unusual coordination mode linking two adjacent copper（H） ions to form a one-dimensional coordination polymer and these chains are further linked by noncovalent interactions.

关键词： Copper(H) complex one-dimensional coordination polymer bidentate nitrate non-covalent interaction

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长江中下游小流域水质综合评价研究

环境生态学 2024年第6期6卷 10-16页

作者：姚志建顾凯丽李寅晨陈琦琦耿旭焦伟江苏国创环保科技有限公司江苏南京211106 南京市雨花台生态环境监测监控中心江苏南京210012 南京大学环境学院江苏南京210023

选取秦淮新河和板桥河作为长江中下游南京段典型支流,以2023年1—12月沿河11个泵站的在线监测数据为基础,采用单因子评价法、综合污染指数法、主成分分析法和Spearman秩相关系数法对水环境质量及主要污染因子进行综合评价。结果表明:秦... 详细信息

选取秦淮新河和板桥河作为长江中下游南京段典型支流,以2023年1—12月沿河11个泵站的在线监测数据为基础,采用单因子评价法、综合污染指数法、主成分分析法和Spearman秩相关系数法对水环境质量及主要污染因子进行综合评价。结果表明:秦淮新河整体水质情况优于板桥河,主要超标因子为氨氮和总磷。秦淮新河地表水Ⅳ类达标率较高,综合污染指数趋于减小,各水质指标间相关性良好。板桥河流域除王家山泵站、B地块泵站和古雄泵站外,其余泵站水质大部分满足地表水Ⅳ类标准,综合污染指数高,主成分分析法得分均大于6,主要受溶解氧、氨氮和高锰酸钾指数影响,各指标间相关性弱。基于评价结果,可对相关水质进行预警预测和提出针对性治理措施,继而提升长江流域生态环境质量。

关键词：秦淮新河板桥河单因子评价法综合污染指数法主成分分析法

2009—2023年上海市松江区林地钉螺分布趋势

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中国血吸虫病防治杂志 2024年第2期36卷 165-168页

作者：毛琦孙彩英黎安琪陆伟伟吕锡宏陆雪辉靳艳军余晴上海市松江区疾病预防控制中心上海201620 上海市松江区卫生健康委员会上海市疾病预防控制中心

目的分析2009—2023年上海市松江区林地螺情变化,为制定松江区螺情监测方案提供参考依据。方法收集2009—2023年上海市松江区螺情监测工作报表,提取林地钉螺调查数据,采用Joinpoint回归模型分别对有螺面积比、活螺框出现率及活螺密度... 详细信息

目的分析2009—2023年上海市松江区林地螺情变化,为制定松江区螺情监测方案提供参考依据。方法收集2009—2023年上海市松江区螺情监测工作报表,提取林地钉螺调查数据,采用Joinpoint回归模型分别对有螺面积比、活螺框出现率及活螺密度进行建模分析,计算2009—2023年各指标年度变化百分比(annual percent change,APC)、年均变化百分比(average annual percent change,AAPC)。结果 2009—2023年,上海市松江区累计在4个镇14个行政村发现林地螺点40个;累计调查钉螺39 065框,调查面积609 600 m^(2),其中有螺框6 084框、有螺面积151 250 m^(2);捕获钉螺22 210只,最高钉螺密度260.00只/0.1 m^(2);解剖钉螺6 262只,未发现血吸虫感染性钉螺。2009—2023年,上海市松江区林地有螺面积比呈上升趋势,但无统计学意义(APC=AAPC=24.9%,P> 0.05),趋势曲线无连接点;最高在2009年(53.81%)、最低在2011年和2013年(均为0),平均24.81%。2009—2023年,上海市松江区林地活螺框出现率呈上升趋势,但无统计学意义(APC=AAPC=41.5%,P> 0.05),趋势曲线无连接点,总体呈单调递增趋势;最高在2009年(53.81%)、最低在2011年和2013年(均为0),平均15.57%。2009—2023年,上海市松江区林地活螺密度呈上升趋势,但无统计学意义(APC=AAPC=55.0%,P> 0.05),趋势曲线无连接点;最高在2023年(0.96只/0.1 m^(2))、最低在2011年和2013年(均为0),平均为0.57只/0.1 m^(2)。结论 2009—2023年上海市松江区林地钉螺控制难度及输入风险呈逐年增加趋势,建议采取苗木移植前监管评估、移植后加强监测频次等措施,以降低钉螺输入及扩散风险。

关键词：钉螺林地苗木移植 Joinpoint回归松江区

Incidence and Risk Factors of Hypertensive Disorders of Pregnancy—8 Provinces,China,2014–2018

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China CDC weekly 2021年第22期3卷 476-482页

作者： wei Zhao Jiangli Di Aiqun Huang qi Yang Huanqing Hu National Center for Women and Children’s Health Chinese Center for Disease Control and PreventionBeijingChina.

Summary What is already known about this topic?As a major cause of maternal and neonatal mortality and morbidity,hypertensive disorders of pregnancy(HDP)are a global public health problem affecting maternal and children’s *** is added by this report?The incidence of HDP was 6.40%among 277,632 pregnant *** the progress of pregnancy,the proportion of pregnant women with high normal blood pressure(BP)and the incidence of HDP increased *** incidence of HDP increased with pregnancy age,body mass index,and BP of pregnant women during first *** are the implications for public health practice?To reduce the incidence of HDP effectively,we should pay more attention to older women who plan to become pregnant,measures should be taken to control BP and weight in pre-pregnancy.

关键词： pregnancy hypertensive mortality

A New Disaccharide from the Fern Macrothelypteris digophlebia

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Chinese Chemical Letters 2000年第12期11卷 1063-1064页

作者： Ming Hua qiU jin Ming GAO Hu qi LIU Jian Xi FU Kunming Institute of Botany The Chinese Academy of SciencesKunming 650204 Northwest Sci.&Tech.University of Agriculture and Forestry YanglingShaanxi 712100

A new disaccharide, digobiose 1, was isolated from the rhizomes of Macrothelypteris digophlebia (Bak.) Ching var. elegans (koidz.). Its structure which is very similar with that of sucrose was identified as alpha -D-g... 详细信息

关键词： Macrothelypteris digophlebia Disaccharide digobiose.