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牙髓血运重建术联合二联抗生素糊剂治疗年轻恒牙牙髓坏死的效果

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当代医学 2024年第3期30卷 164-167页

作者：李惠夏晓宏胡娜娜枣庄市口腔医院儿童口腔科山东枣庄277103

目的探讨牙髓血运重建术联合二联抗生素糊剂(DAP)治疗年轻恒牙牙髓坏死的效果。方法选取2020年1月至2022年1月于枣庄市口腔医院接受治疗的100例年轻恒牙牙髓坏死患者作为研究对象,按照随机数字表法分为对照组与研究组,每组50例。对照组... 详细信息

目的探讨牙髓血运重建术联合二联抗生素糊剂(DAP)治疗年轻恒牙牙髓坏死的效果。方法选取2020年1月至2022年1月于枣庄市口腔医院接受治疗的100例年轻恒牙牙髓坏死患者作为研究对象,按照随机数字表法分为对照组与研究组,每组50例。对照组采用牙髓血运重建术常规三联抗生素糊剂(TAP)封药治疗,研究组采用牙髓血运重建术联合DAP治疗,比较两组治疗前后龈沟液生长因子水平、牙髓相关临床指标及不良反应发生率、治疗满意度。结果治疗后,两组血管内皮生长因子(VEGF)、表皮生长因子(EGF)、碱性成纤维细胞生长因子(bFGF)水平均高于治疗前(P<0.05),但两组组间比较差异无统计学意义。治疗后,两组根管壁厚度均厚于治疗前,牙根长度均长于治疗前,视觉模拟评分法(VAS)评分均低于治疗前,差异有统计学意义(P<0.05);但两组组间比较差异无统计学意义。两组不良反应发生率比较差异无统计学意义。研究组治疗满意率为96.00%,高于对照组的80.00%,差异有统计学意义(P<0.05)。结论年轻恒牙牙髓坏死患者接受牙髓血运重建术联合DAP治疗与牙髓血运重建术常规TAP封药治疗效果相当,均可改善恒牙牙髓坏死情况,但牙髓血运重建术联合DAP可降低不良反应发生风险,提升患者治疗整体满意度,值得临床推广应用。

关键词：年轻恒牙牙髓坏死牙髓血运重建术二联抗生素糊剂生长因子不良反应治疗满意度

A CuO/TiO_(2)Heterojunction Based CO Sensor with High Response and Selectivity

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Energy & Environmental Materials 2023年第3期6卷 409-416页

作者： Wei Wei Huanhuan Zhang Tiyue Tao xiaohong xia Yuwen Bao Manon Lourenco Kevin Homewood Zhongbing Huang Yun Gao Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and MinistrySchool of Materials Science&EngineeringHubei UniversityWuhan 430062China

The use of heterojunctions is a promising solution to the problem of cross-sensitivity in gas *** this work,a carbon monoxide sensor based on the CuO/TiO_(2)heterojunction was designed and *** to the good adsorption properties of CuO materials to CO,and the heterojunction interface charge transfer,the CuO/TiO_(2)thin film sensor exhibits high sensitivity to CO at room *** response is as high as 10.8–200 ppm CO,about 10 times its response to H_(2).Interference from H_(2)is greatly reduced by optimizing the structure of the CuO/TiO_(2)*** reliable detection of carbon monoxide with excellent discrimination against H_(2)is of great significance for the development of CO gas sensors.

关键词： carbon monoxide cross-sensitivity gas sensor heterojunction hydrogen

Synergetic Contributions from the Components of Flexible 3D Structured C/Ag/ZnO/CC Anode Materials for Lithium-Ion Batteries

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Energy & Environmental Materials 2023年第6期6卷 227-235页

作者： Huang xiao Shuangpeng Li Jiaying Zhou Chenyu Zhao Yi Yuan xiaohong xia Yuwen Bao Manon Lourenço Kevin Homewood Yun Gao Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and MinistrySchool of Materials Science&EngineeringHubei UniversityWuhan 430062China

Low electronic conductivity and large volume changes during the(de)lithiation process are the two main challenges for ZnO anode materials used for lithium-ion batteries(LIB).Here,a free-standing,flexible,and binder-free LIB electrode composed of ZnO nanorods and carbon cloth(CC)is *** is then decorated with Ag nanoparticles and finally coated by an amorphous carbon layer to form the hybrid electrode:(C@(Ag&ZnO)).The voids among the nanorods are sufficient to accommodate the volume expansion of the ZnO while the flexible CC,which acts as the current collector,relieves the volume change-induced *** Ag nanoparticles are effective in improving the *** composite electrode shows excellent LIB performance with a stable long cycling life over 500 cycles with a reversible capacity of 1093 mAh g^(-1)at a current density of 200 mA g^(-1).It also shows good rate performance with reversible capacity of 517 mAh g^(-1)under a high-current density of 5000 mA g^(-1).In situ Raman spectroscopy is conducted to investigate the contributions of the amorphous carbon layer to the capacity of the whole electrode and the synergy between the CC and ZnO nanorods.

关键词： binder-free in situ Raman spectroscopy lithium-ion batteries ZnO nanorods

Petrogenesis of Aoyougou high-silica adakite in the North Qilian orogen,NW China:Evidence for decompression melting of oceanic slab

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Chinese Science Bulletin 2012年第22期57卷 2289-2301页

作者： Yuxiao Chen xiaohong xia ShuGuang Song Peking Univ Sch Earth & Space Sci MOE Key Lab Orogen Belts & Crustal Evolut Beijing 100871 Peoples R China

A trondhjemitic body occurs in the Aoyougou area,the western part of the North Qilian *** is geochemically characterized by high SiO 2,Na 2 O (high Na/K),elevated Sr/Y and (La/Yb) N,positive Sr anomaly,relatively enriched large ion lithophile elements (LILEs) and light rare earth elements (LREEs),and depleted Nb,Ta,Ti,resembling the high-silica *** U-Pb SHRIMP dating yields a weighted mean age of 438±3 *** age is significantly younger than eclogitization ages of 460-490 Ma in the North Qilian orogen,suggesting that formation of the adakite postdates the subduction of oceanic crust in association with closure of the ancient Qilian ***-rock Sr and Nd isotopic analyses give initial ratios of I Sr =0.7044 0.7047 and Nd (t)=3.0 4.1,indicating that they are derived from partial melting of the juvenile oceanic *** view of the tectonic evolution of the North Qilian orogen,the high-silica adakite was probably derived from decompression melting of the exhumed eclogite at the depth of ～60 km.

关键词：北祁连造山带大洋地壳部分熔融埃达克岩稀土元素地球化学特征高硅中国西北减压

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Forming age and tectono-petrogenises of the Jiugequan ophiolite in the North Qilian Mountain,NW China

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Chinese Science Bulletin 2010年第18期55卷 1899-1907页

作者： xia xiaohong SONG ShuGuang MOE Key Laboratory. of Orogenic Belts and Crustal Evolution School of Earth and Space Sciences Peking University Beijing 100871 China

The Jiugequan ophiolite is one of the representative ophiolite fragments in the Early Paleozoic orogenic belt of the North Qilian *** has been drawn much attention and extensively studied in recent *** this study,ion microprobe(SHRIMP) U-Pb dating was carried out for zircons from isotropic gabbro from the Jiugequan *** analyses yield a relatively consistent apparent 206Pb/238U ages from 480 to 508 Ma with a weighted mean age of 490±5 Ma(MSWD=1.06),which is believed to be the crystallization age of the gabbro and thus the forming age of the Jiugequan *** and trace element geochemical study indicates that the diabase-basalts from the Jiugequan ophiolite have N-MORB and E-MORB characteristics with some subduction-related *** petrological,geochemical and chronological data enable us to conclude that the Jiugequan ophiolite is most likely to be formed at a spreading center of back-arc basin during the early Ordovician,while the ancient Qilian oceanic plate subducted *** acquisition of forming age and determination of tectonic setting for Jiugequan ophiolite provide significant constraints on the evolution of intra-oceanic subduction system in the North Qilian orogenic belt during the Early Paleozoic era.

关键词：北祁连山形成时代蛇绿岩构造北祁连造山带中国净重板块俯冲

Core-shell structured MoS_2@S spherical cathode with improved electrochemical performance for lithium-sulfur batteries

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Journal of Materials Science & Technology 2018年第10期34卷 1912-1918页

作者： Songpu Cheng xiaohong xia Hongbo Liu Yuxi Chen College of Materials Science and Engineering Hunan University

To suppress shuttling effect and improve electrochemical performance of the sulfur cathode for lithium- sulfur batteries, core-shell structured MoS2 @S spherical cathode has been synthesized through a chemical route using MnC03 as template. The MoS2 shells consist of MoS2 nanosheets. For comparison, MoS2/S cathode has also been synthesized through melting and diffusion of sulfur to commercial MoS2 pow-ders. The electrochemical performance of the MoS2@S and MoS2/S cathodes have been evaluated using cyclic voltammetry, discharge/charge cycling, electrochemical impedance spectroscopy coupled with impedance fitting. The electrochemical performance of the MoS2@S spherical cathode has been much improved compared with that of MoS2/5. The capacity of the MoS2 @S spheres can reach 1185.7 mA h g^-1 at 0.2 C and 955.1 mA h g^-1 at 1 C with initial-cycle coulombic efficiency of 90%. The capacity fading of each cycle is 0.1% during 200 lithiation/delithiation cycles. The MoS2 @S spherical cathode with high cyclic capacity and stability is promising cathode candidate for lithium-sulfur batteries.

关键词： Core-shell particle Electrochemical property Electrode MoS2 Sulfur

Electroless deposition of Au nanoparticles on reduced graphene oxide/polyimide film for electrochemical detection of hydroquinone and catechol

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Frontiers of Materials Science 2017年第3期11卷 262-270页

作者： Xuan SHEN xiaohong xia Yongling DU Chunming WANG College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China

An electrochemical sensor for determination of hydroquinone （HQ） and catechol （CC） was developed using Au nanoparticles （AuNPs） fabricated on reduced graphene oxide/polyimide （PIIRGO） film by electroless deposition. The electrochemical behaviors of HQ and CC at PIIRGO-AuNPs electrode were investigated by cyclic voltammetry （CV） and differential pulse voltammetry （DPV）. Under the optimized condition, the current responses at PI/RGO-AuNPs electrode were linear over ranges from 1 to 654 mol/L for HQ and from 2 to 1289 mol/L for CC, with the detection limits of 0.09 and 0.2 mollL, respectively. The proposed electrode exhibited good reproducibility, stability and selectivity. In addition, the proposed electrode was successfully applied in the determination of HQ and CC in tap water and the Yellow River samples.

关键词： electroless Au nanoparticles hydroquinone catechol sensor

Fundamental Basis for Distinctive Sensing of H_(2) in Humid Environment

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Energy & Environmental Materials 2018年第3期1卷 174-178页

作者： Zhuo Wang Mengjie Deng xiaohong xia Yun Gao Guosheng Shao State Center for International Cooperation on Designer Low-carbon&Environmental Materials Zhengzhou University100 Kexue AvenueZhengzhou 450001China Zhengzhou Materials Genome Institute ZhongyuanzhiguXingyang 450100China Ministry-of-Education Key Laboratory for Green Preparation and Application of Functional Materials Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsSchool of Materials Science&EngineeringHubei UniversityWuhan 430062China

Accurate sensing of trace amount of hydrogen without interference from environment is highly desirable in timely detection of possible leakage when using hydrogen as a clean energy *** in air is usually considered as ... 详细信息

关键词： DFT simulation humidity hydrogen senor room temperature Schottky barrier

MFG-E8 Alleviates Cognitive Impairments Induced by Chronic Cerebral Hypoperfusion by Phagocytosing Myelin Debris and Promoting Remyelination

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Neuroscience Bulletin 2024年第4期40卷 483-499页

作者： xiaohong Dong Zhi Zhang Xin Shu Zi Zhuang Pinyi Liu Renyuan Liu Shengnan xia Xinyu Bao Yun Xu Yan Chen Department of Neurology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjing210008China Department of Neurology Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western MedicineNanjing University of Chinese MedicineNanjing210008China Department of Neurology Drum Tower Hospital of Nanjing Medical UniversityNanjing210008China Jiangsu Key Laboratory for Molecular Medicine Medical School of Nanjing UniversityNanjing210008China Jiangsu Provincial Key Discipline of Neurology Nanjing210008China

Chronic cerebral hypoperfusion is one of the pathophysiological mechanisms contributing to cognitive decline by causing white matter *** phagocytosing myelin debris in a timely manner can promote remyelination and contribute to the repair of white ***,milk fat globule-epidermal growth factor-factor 8(MFG-E8),a microglial phagocytosis-related protein,has not been well studied in hypoperfusion-related cognitive *** found that the expression of MFG-E8 was significantly decreased in the brain of mice after bilateral carotid artery stenosis(BCAS).MFG-E8 knockout mice demonstrated more severe BCAS-induced cognitive impairments in the behavioral *** addition,we discovered that the deletion of MFG-E8 aggravated white matter damage and the destruction of myelin microstructure through fluorescent staining and electron ***,MFG-E8 overexpression by AAV improved white matter injury and increased the number of mature oligodendrocytes after ***,in vitro and in vivo experiments showed that MFG-E8 could enhance the phagocytic function of microglia via theαVβ3/αVβ5/Rac1 pathway and IGF-1 production to promote the differentiation of oligodendrocyte progenitor cells into mature ***,we found that MFG-E8 was mainly derived from astrocytes,not *** findings suggest that MFG-E8 is a potential therapeutic target for cognitive impairments following cerebral hypoperfusion.

关键词： White matter injury Cognitive dysfunction MFG-E8 Remyelination Microglial phagocytosis