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| 1 | Molecular characteristics of rifampin and isoniazid resistant Mycobacterium tuberculosis strains from Beijing,China显示文摘背景中国是 Mycobacterium 的高负担国家之一肺结核(TB ) 感染全球性,与高发生和死亡。我们学习了 rifampin ( RIF )和抵抗 Mycobacterium 肺结核从中国北京拉紧的异菸肼( INH )的分子的特征,四十 pansusceptible 和 Mycobacterium 肺结核的 81 抵抗紧张从北京孤立以便为特定的药 resistance.Methods 的快速的察觉发现基因标记,中国在 2002-2005 期间被分析。修改 rifampin oligonucleotide (RIFO ) 试金基于反向的线污点杂交被用来在 rpoB 基因的 81 bp 热点区域检测变化,它与 RIF 抵抗被联系。INH 抵抗联系了基因,规章的区域 mab-inhA (-15C/T) 和结构的基因 katG S315T 被反向的线污点杂交和 PCR 限制碎片长度多型性(RFLP ) 检测方法分别地。所有紧张被 spoligotying 打,北京遗传型被 NTF 地点分析进一步细分。药抵抗的分发在上述基因联系了变化在这些 groups.Results 被比较 65 (91.5%) 抵抗的 71 RIF 并且 52 (92.9%) 56 multidrug 抵抗(MDR,对至少 RIF 和 INH 抵抗的 .e ) 紧张被发现在 rpoB 热点区域怀有变化。没有变化在 RIF 敏感紧张被检测。修改 RIFO 试金的特性和敏感是 100% 并且 91.5% 分别地。katG315 AGCACC 和 inhA-15CT 变化在 40 被发现(60.6%) 并且 10 (15.2%) 66 NH 抵抗紧张,分别地; 7.6%INH 抵抗的紧张在这两基因有变化。因此, katG315 和 inhA-15 的联合使用识别了 68.2%INH 抵抗的紧张。北京遗传型说明了 91.7% 全部的紧张并且进一步被细分进“现代”(76.6%) 并且“祖先”(23.4%) 组。在药的 prevaiance 的“祖先”、“现代”的组之间没有重要差别联系抵抗的基因 mutations.Conclusions rpoB 基因的热点区域能为 RIF 抵抗紧张的察觉被用作基因标记;katG315 和 inhA-15 的联合使用能改进 INH 抵抗紧张的察觉率;北京遗传型在中国北京是流行的;修改 RIFO 试金能是为抵抗的 RIF 的快速的察觉的一个实际工具, MDR 在平淡的诊断工作孤立。 | JIAO Wei-wei Mokrousov Igor SUN Gui-zhi LI Mo LIU Jia-wen Narvskaya Olga SHEN A-dong | 2007 | Chinese Medical Journal2007,,9: | 39 |
| 2 | Early Cretaceous extensional structures in the Liaodong Peninsula:Structural associations,geochronological constraints and regional tectonic implications显示文摘Various extensional structures,e.g.,half grabens,detachment faults,and metamorphic core complexes,were formed in the Liaodong Peninsula.There are two metamorphic core complexes (mcc's) in the western part of the Peninsula,i.e.the Liaonan mcc and the Wanfu mcc.They share the same lower plate and constitute a conjugate mcc pair.The Dayingzi detachment fault system and the three half grabens are exposed in the central and eastern parts,respectively.U-Pb dating of zircons from syntectonic plutons in the lower plates of the detachment faults and volcanic rocks from half graben basins indicates that their formation spans from 135 to 106 Ma,although the individual structure may be formed at a particular stage.Despite the differences in age of formation,in the regional attitudes,and in rooting depths,the extensional structures have great similarities in their kinematics,geometrical asymmetry,and coeval tectono-magmatic activities etc.Macroscopically,the extensional structures constitute conjugate associations,but a particular one generally has asymmetric patterns.Early Cretaceous extensional structures extend from the Liaodong Peninsula to North China,Northeast China,South China,and eastern Mongolia and Transbaikal area in Russia.The extensional structures from different areas share many common features.The Liaodong Peninsula is the miniature of the East Asia with respect to the formation of extensional structures in Early Cretaceous.It is suggested that the interaction of the Izanagi Plate with Eurasia Plate is responsible for the extension of crust.The structural mobility of the lithosphere,partly attributed to the fluid flow at the depth,and detachment faulting in both the crustal and mantle lithosphere provide important constraints on the development of Early Cretaceous extensional structures in the East Asia. | LIU JunLai JI Mo SHEN Liang GUAN HuiMei Gregory A DAVIS | 2011 | Science China Earth Sciences2011,54,6: | 38 |
| 3 | The Dayingzi detachment fault system in Liaodong Peninsula and its regional tectonic significance显示文摘Large scale lithosphere thinning is an important characteristic of the destruction of the North China Craton (NCC) during the late Mesozoic. A series of extensional structures were developed under extensional setting, among which is the Dayingzi detachment fault system (DFS). The DFS is constituted by three parts, volcano-sedimentary basins at the hanging wall, the Dayingzi-Huanghuadian detachment fault zone, and Paleoproterozoic metamorphic rock series and Mesozoic plutons at the foot-wall. In the section across the detachment fault zone, there is a sequence of tectonites including fault gouge, microbreccia, cataclastic-mylonites, mylonites, and gneissic biotite monzonite granite. Microstructural characteristics of tectonites and electron backscatter diffraction (EBSD) patterns of quartz indicate that the rocks from the footwall experienced a process from upper greenschist facies to lower greenschist facies. SHRIMP and LA-ICP MS U-Pb dating of zircons from the volcanic rocks in the basins, the tectonic evolution of the DFS is summarized as follows: 1) regional extension started at 135.0±1.2 Ma ago, when the detachment fault cut through the middle crust. Faulting induced the upwelling of magma and eruption of volcanic rocks and deformed a series of medium-acid volcanic rocks; 2) after 135.0±1.2 Ma, a large scale detachment faulting was active cross-cutting the mid-upper crust. The western margin of Jurassic and Triassic granite was ductilly and brittly sheared; besides, the Cretaceous volcano-sedimentary rocks were tilted when the master fault approached the surface; 3) at around 127±1 Ma, the detachment fault stopped its activity and was intruded by the unsheared Cretaceous granite near Chaoyang. Comparison with the Liaonan metamorphic core complex (MCC) and other extensional structures in Liaodong Peninsula led to a general trend of including three zones in the Peninsula: MCC zone, detachment fault systems (DFS) zone, and half graben zone. MCC commonly cuts through the mid-lower crust, DFS through the mid-upper crust, and half graben through the upper crust. Therefore, development of the extensional structures in Liaodong Peninsula indicates that they are the results of crustal extension and thinning at different crustal levels. They may provide a deep insight into the dynamic mechanism, history of destruction and lithosphere thinning of the North China Craton (NCC). | SHEN Liang LIU JunLai HU Ling JI Mo GUAN HuiMei Gregory A DAVIS | 2011 | Science China Earth Sciences2011,54,10: | 17 |
| 4 | Some constructions of projectively flat Finsler metrics显示文摘In this paper, we find some solutions to a system of partial differential equations that characterize the projectively flat Finsler metrics. Further, we discover that some of these metrics actually have the zero flag curvature. | MO Xiaohuan, SHEN Zhongmin & YANG Chunhong LMAM, School of Mathematical Sciences, Peking University, Beijing 100871, China Department of Mathematical Sciences, Indiana University-Purdue University, Indianapolis, IN 46202-3216, USA Department of Mathematics, Inner Mongolia University, Hohhot 010021, China | 2006 | Science China Mathematics2006,49,5: | 15 |
| 5 | Numerical investigation into the effect of backfilling on coal pillar strength in highwall mining显示文摘This paper attempts to quantify the effect of backfilling on pillar strength in highwall mining using numerical modelling. Calibration against the new empirical strength formula for highwall mining was conducted to obtain the material parameters used in the numerical modelling. With the obtained coal strength parameters, three sets of backfill properties were investigated. The results reveal that the behavior of pillars varies with the type and amount of backfill as well as the pillar width to mining height ratio(w/h). In case of cohesive backfill, generally 75% backfill shows a significant increase in peak strength, and the increase in peak strength is more pronounced for the pillars having lower w/h ratios. In case of noncohesive backfill, the changes in both the peak and residual strengths with up to 92% backfill are negligible while the residual strength constantly increases after reaching the peak strength only when 100%backfill is placed. Based on the modelling results, different backfilling strategies should be considered on a case by case basis depending on the type of backfill available and desired pillar dimension. | Mo S. Canbulat I. Zhang C. Oh J. Shen B. Hagan P. | 2018 | International Journal of Mining Science and Technology2018,28,2: | 9 |
| 6 | A New Species of the Genus Tylototriton(Amphibia,Salamandridae) from Hunan,China显示文摘A new species of the genus Tylototriton is described in this article based on morphological and genetic evidence. The new species is identified belonging to the T. asperrimus group and is similar to T. wenxianensis. The diagnostic characters of the new species are as follows: dorsal ridge broad and thick,its width approximately equal to eye diameter(P < 0.001); tail height greater than width at base of tail(P < 0.001); no villous genital papilla found inside the male anal fissure; nodule-like warts,along lateral margin of the trunk,bulge and forming tubercles,and thin and transverse striae present between the tubercles. | Youhui SHEN Jianping JIANG Xiaoyang MO | 2012 | Asian Herpetological Research2012,3,1: | 7 |
| 7 | Super-resolution fluorescence-assisted diffraction computational tomography reveals the threedimensional landscape of the cellular organelle interactome显示文摘The emergence of super-resolution(SR)fluorescence microscopy has rejuvenated the search for new cellular substructures.However,SR fluorescence microscopy achieves high contrast at the expense of a holistic view of the interacting partners and surrounding environment.Thus,we developed SR fluorescence-assisted diffraction computational tomography(SR-FACT),which combines label-free three-dimensional optical diffraction tomography(ODT)with two-dimensional fluorescence Hessian structured illumination microscopy.The ODT module is capable of resolving the mitochondria,lipid droplets,the nuclear membrane,chromosomes,the tubular endoplasmic reticulum,and lysosomes.Using dual-mode correlated live-cell imaging for a prolonged period of time,we observed novel subcellular structures named dark-vacuole bodies,the majority of which originate from densely populated perinuclear regions,and intensively interact with organelles such as the mitochondria and the nuclear membrane before ultimately collapsing into the plasma membrane.This work demonstrates the unique capabilities of SR-FACT,which suggests its wide applicability in cell biology in general. | Dashan Dong Xiaoshuai Huang Liuju Li Heng Mao Yanquan Mo Guangyi Zhang Zhe Zhang Jiayu Shen Wei Liu Zeming Wu Guanghui Liu Yanmei Liu Hong Yang Qihuang Gong Kebin Shi Liangyi Chen | 2020 | Light(Science & Applications)2020,9,1: | 7 |
| 8 | Formaldehyde concentration and its influencing factors in residential homes after decoration at Hangzhou,China显示文摘Air pollution surveys of formaldehyde(HCHO) were conducted in 2324 rooms decorated within one year in 2007-2009 in Hangzhou,China.The mean HCHO concentration(C HCHO) was 0.107 ± 0.095 mg/m 3,and 38.9% of samples exceeded the Chinese National Standard GB 50325-2010.Over the past 3 years,the C HCHO decreased with time(p < 0.05).Relationships of potential factors to indoor C HCHO were also evaluated.C HCHO was related to temperature(T),relative humidity(RH),time duration of the windows and doors being closed before sampling(DC),time duration from the end of decoration to sampling(DR) and source characteristics(d).A model to relate indoor C HCHO to these five factors(T,RH,DC,DR,d) was established based on 298 samples(R 2 = 0.87).Various factors contributed to C HCHO in the following order:T,43.7%;d,31.0%;DC,10.2%;DR,8.0%;RH,7.0%;specifically,meteorological conditions(i.e.,RH plus T) accounted for 50.7%.The coefficient of T and RH,R TH,was proposed to describe their combined influence on HCHO emission,which also had a linear relationship(R 2 = 0.9387) with HCHO release in a simulation chamber test.In addition,experiments confirm that it is a synergistic action as T and RH accelerate the release of HCHO,and that is a significant factor influencing indoor HCHO pollution.These achievements could lead to reference values of measures for the efficient reduction of indoor HCHO pollution. | Min Guo Xiaoqiang Pei Feifei Mo Jianlei Liu Xueyou Shen | 2013 | Journal of Environmental Sciences2013,25,5: | 7 |
| 9 | A new species of Megophrys (Amphibia:Anura:Megophryidae) from the northwestern Hunan Province,China显示文摘A new species of Megophrys (Amphibia: Anura: Megophryidae), Megophrys tuberogranulatus Shen, Mo et Li, sp.nov. (Holotype HNUL 03080902, adult male, SVL: 38.2 mm), from Sangzhi County, Hunan Province, is described. Megophrystuberogranulatus is closely related to both Megophrys kuatunensis and Megophrys minor. Characters of the new species that differentiatethis species from close relatives are skin granulated with big tubercles on the dorsal sides of both thigh and tibia, thebigger inner metacarpal tubercle, upper eyelid wider than the interorbital space, hind limbs longer, overlapping of the left andright calcaneal parts. The type specimens are deposited in the Animal Museum of Life Sciences College of Hunan Normal University. | Xiaoyang MO Youhui SHEN Honghui LI Xiushan WU | 2010 | Current Zoology2010,56,4: | 6 |
| 10 | Metamorphic peridotite and rock series of ophiolite belt in Mt. Ailao, Yunnan Province显示文摘The metamophic peridotite of ophiolite belt in Mt. Ailao is composed of lherzolite and harzburgite. The former shows the charateristics of primary pyrolite and the latter shows those of deleted (relict)pyrolite. By partial melting of lherzolite, two primary magmas: tholeiitic magma and picrite-basalt magma are formed. The former evoluted into gabbro-diabase-pyroxenic basalt rock series and show the characteristics of MORB; while the latter evoluted into gabbro-diorite-albite basalt-picrite basalt one, and show the characteristics of para-MORB. | Shen Shangyue Wei Qirong Cheng Huilan Mo Xuanxue | 1998 | Chinese Science Bulletin1998,43,11: | 6 |
| 11 | Appropriately adapted properties of hot-extruded Zn-0.5Cu-xFe alloys aimed for biodegradable guided bone regeneration membrane application显示文摘Appropriately adapted comprehensive mechanical properties,degradation behavior and biocompatibility are prerequisites for the application of Zn-based biodegradable implants.In this study,hot-extruded Zn-0.5Cu-xFe(x=0.1,0.2 and 0.4 wt%)alloys were fabricated as candidates for biodegradable materials for guided bone regeneration(GBR)membranes.The hot-extrusion process and Cu alloying were expected mostly to enhance the mechanical properties,and the Fe alloying was added mainly for regulating the degradation.The microstructure,mechanical properties and in vitro degradation behavior were systematically investigated.The ZnCuFe alloys were composed of a Zn matrix and FeZn13 phase.With increasing Fe content,a higher FeZn13 phase precipitation with larger particles was observed.Since elongation declined significantly until fracture with increasing Fe content up to 0.4 wt%,the ZnCuFe(0.2 wt%)alloy achieved a good balance between mechanical strength and ductility,with an ultimate tensile strength of 202.3 MPa and elongation at fracture of 41.2%.Moreover,the addition of Fe successfully accelerated the degradation of ZnCuFe alloys.The ZnCuFe(0.2 wt%)alloy showed relatively uniform corrosion in the long-term degradation test.Furthermore,extracts of the ZnCuFe(0.2 wt%)alloy showed no apparent cytotoxic effects against L929 fibroblasts,Saos-2 osteoblasts or TAg periosteal cells.The ZnCuFe(0.2 wt%)alloy exhibited the potential to inhibit bacterial adhesion of Streptococcus gordonii and mixed oral bacteria.Our study provides evidence that the ZnCuFe(0.2 wt%)alloy can represent a promising material for the application as a suitable GBR membrane. | Wentai Zhang Ping Li Gang Shen Xiaoshan Mo Chao Zhou Dorothea Alexander Frank Rupp Jürgen Geis-Gerstorfer Haijun Zhang Guojiang Wan | 2021 | Bioactive Materials2021,6,4: | 6 |
| 12 | Electrospinning nanofiber scaffolds for soft and hard tissue regeneration显示文摘Tissue engineering is an interdisciplinary field that integrates medical,biological,and engineering expertise to restore or regenerate the functionality of healthy tissues and organs.The three fundamental pillars of tissue engineering are scaffolds,cells,and biomolecules.Electrospun nanofibers have been successfully used as scaffolds for a variety of tissue engineering applications because they are biomimetic of the natural,fibrous extracellular matrix(ECM)and contain a three-dimensional(3D)network of interconnected pores.In this review,we provide an overview of the electrospinning process,its principles,and the application of the resultant electrospun nanofibers for tissue engineering.We first briefly introduce the electrospinning process and then cover its principles and standard equipment for biomaterial fabrication.Next,we highlight the most important and recent advances related to the applications of electrospun nanofibers in tissue engineering,including skin,blood vessels,nerves,bone,cartilage,and tendon/ligament applications.Finally,we conclude with current advancements in the fabrication of electrospun nanofiber scaffolds and their biomedical applications in emerging areas. | Xianrui Xie Yujie Chen Xiaoyu Wang Xiaoqing Xu Yihong Shen Atta ur Rehman Khan Ali Aldalbahi Allison E.Fetz Gary L.Bowlin Mohamed El-Newehy Xiumei Mo | 2020 | Journal of Materials Science & Technology2020,59,24: | 5 |
| 13 | The Role of OsMSH5 in Crossover Formation during Rice Meiosis显示文摘MSH5,傻瓜相当或相同的事物家庭的一个成熟分裂特定的成员,在开始发育的酵母,老鼠, Caenorhabditis elegans,和 Arabidopsis 为再结合的正常水平被要求。这里,我们报导它的米饭相当或相同的事物的鉴定和描述, OsMSH5,并且在米饭表明它的功能成熟分裂。五独立 Osmsh5 异种展出了正常植物的生长和严重绝育。当交叉频率极大地被归结为观察了在那中的约 10% 个时, synaptonemal 建筑群很好在 Osmsh5 被安装野类型,导致相应不分离和完全的无菌的显型。OsMSH5 主要在圆锥花序被表示。Immunofluorescence 研究显示 OsMSH5 chromosomal 本地化限于早 meiotic 前期我。OsMSH5 能在 Oszip4, Osmer3,和 hei10 被装载到 meiotic 染色体上。然而,那些 ZMM 蛋白质不能当 OsMSH5 不在时通常是局部性的。而且,剩余 chiasmata 被显示在 zmm 异种之中最不经常,包括 Osmer3, Oszip4, hei10,和 Osmsh5。一起拿,我们建议 OsMSH5 工作在一级转线路的 OsZIP4, OsMER3,和 HEI10 在上游形成。 | Qiong Luo Ding Tang MO Wang Weixiong Luo Lei Zhang Baoxiang Qin Yi Shen Kejian Wang Yafei Li Zhukuan Cheng | 2013 | Molecular Plant2013,6,3: | 5 |
| 14 | Fast-Suppressor Screening for New Components in Protein Trafficking,Organelle Biogenesis and Silencing Pathway in Arabidopsis thaliana Using DEX-Inducible FREE1-RNAi Plants显示文摘Membrane trafficking is essential for plant growth and responses to external signals.The plant unique FYVE domain-containing protein FREE1 is a component of the ESCRT complex(endosomal sorting complex required for transport).FREE1 plays multiple roles in regulating protein trafficking and organelle biogenesis including the formation of intraluminal vesicles of multivesicular body(MVB),vacuolar protein transport and vacuole biogenesis,and autophagic degradation.FREE1 knockout plants show defective MVB formation,abnormal vacuolar transport,fragmented vacuoles,accumulated autophagosomes,and seedling lethality.To further uncover the underlying mechanisms of FREE1 function in plants,we performed a forward genetic screen for mutants that suppressed the seedling lethal phenotype of FREE1-RNAi transgenic plants.The obtained mutants are termed as suppressors of free1(sof).To date,229 putative sof mutants have been identified.Barely detecting of FREE1 protein with M3plants further identified 84 FREE1-related suppressors.Also145 mutants showing no reduction of FREE1 protein were termed as RNAi-related mutants.Through next-generation sequencing(NGS)of bulked DNA from F2mapping population of two RNAi-related sof mutants,FREE1-RNAi T-DNA inserted on chromosome 1 was identified and the causal mutation of putative sof mutant is being identified similarly.These FREE1-and RNAi-related sof mutants will be useful tools and resources for illustrating the underlying mechanisms of FREE1 function in intracellular trafficking and organelle biogenesis,as well as for uncovering the new components involved in the regulation of silencing pathways in plants. | Qiong Zhao Caiji Gao PoShing Lee Lin Liu Shaofang Li Tangjin Hu Jinbo Shen Shuying Pan Hao Ye Yunru Chen Wenhan Cao Yong Cui Peng Zeng Sheng Yu Yangbin Gao Liang Chen Beixin Mo Xin Liu Shi Xiao Yunde Zhao Silin Zhong Xuemei Chen Liwen Jiang | 2015 | Journal of Genetics and Genomics2015,42,6: | 4 |
| 15 | Recent developments and some open problems in Finsler geometry显示文摘Finsler geometry is just Riemannian geometry without the quadratic restriction. Recent studies on Finsler geometry have taken on a new look. In this article, we will briefly discuss recent developments and some open problems in Finsler geometry. | MO Xiaohuan & SHEN Zhongmin1. School of Mathematical Sciences, Peking University, Beijing 100871, China 2. Department of Mathematics, IUPUI 402 N. Blackford Street, Indianapolis, IN 46202-3216, USA | 2001 | Chinese Science Bulletin2001,46,13: | 4 |
| 16 | A competitive RT-PCR-based approach to quantifying promoter activity of stress gene显示文摘Chloramphenicol acetyltransferase (CAT) as a stable reporter has been broadly adopted to detect promoter activity of many stress genes in eukaryotic cells. A simplified, convenient and relatively accurate assay to reveal CAT activities driven by heat shock gene promoter upon cell stress is reported here. A CAT mutant control plasmid pMCAT is constructed out of pBLCAT3, with a DNA segment within the CAT gene deleted. The control plasmid pMCAT along with the wild type CAT reporter gene driven by the regulatory sequence of hsp90β gene are co-transfected into Jurkat cells. Following total cellular RNA extracted and reverse transcribed, PCR is carried out to amplify two individual fragments with the same pair of synthesized primers, which bind to the identical sequences in both pMCAT and the CAT reporter plasmids. The two PCR fragments amplified from the reporter and control RNAs are identified by their size differences in agarose gel electrophoresis. The ratio of intensity of the two PCR bands in the same lane is taken as 'relative units of promoter efficiency' of a gene. The transcripts instead of CAT activity thus detected, may not only provide a closer look at the promoter activity of the stress gene but also normalize the efficiency of transfection simultaneously. With experimental conditions optimized, visible and reliable results can be obtained without using any sophisticated instruments. Since the results obtained with the RT-PCR approach are reproducible, much less troublesome and time-consuming, and comparable to our previous data, we thus take it as a conventional procedure for promoter activity assay of human hsp gene upon heat shock. Additionally, results from the assay have recently provided the first evidence that Rac, MEKK and JNK signals participate in the heat shock-induced expression of hsp90β gene. | MO Zhicheng, LI Xiaoyan, LI Hongfan, CHENG Xiaokuan, WU Ninghua and SHEN Yufei(National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China) | 2002 | Progress in Natural Science:Materials International2002,12,10: | 4 |
| 17 | Nitrogen deposition and its ecological impact in China: An overview显示文摘 | Xuejun Liu Lei Duan Jiangming Mo Enzai Du Jianlin Shen Xiankai Lu Ying Zhang Xiaobing Zhou Chune He Fusuo Zhang | 2010 | Environmental Pollution2010,,10: | 4 |
| 18 | Pollution levels and characteristics of phthalate esters in indoor air in hospitals显示文摘The concentrations of phthalate esters(PAEs) in Chinese hospitals were investigated by simultaneously determining concentrations of gas- and particle-phase PAEs. PAEs were detected in two third-class first-grade hospitals, two second-class first-grade hospitals, and a community health service center. Hospital drugstores had the highest concentration(24.19 μg/m3), which was 1.54 times that of newly decorated houses. The second highest concentration was found in the transfusion rooms, averaging 21.89 μg/m3; this was followed by the concentrations of PAEs in the nurse's workstations, the wards, and the doctor's offices, with mean concentrations of 20.66, 20.0, and 16.92 μg/m3, respectively. The lowest concentrations were found in the hallways(16.30 μg/m3). Of the six different kinds of PAEs found, major pollutants included diethyl phthalates, dibutyl phthalates, butylbenzyl phthalates and di(2-ethylhexyl) phthalates, comprising more than 80% of all PAEs present.Meanwhile, a comparison between different wards showed that PAE concentrations in the maternity wards were 1.63 times higher than in the main wards. Based on known health hazards, our results suggest that the PAEs seriously influence the health of the pregnant women and babies; therefore, it is of great importance to take the phthalate concentrations in hospitals into consideration. In addition, hospital indoor air was more seriously contaminated than the air of newly decorated houses. | Xueqing Wang Min Song Min Guo Chenchen Chi Feifei Mo Xueyou Shen | 2015 | Journal of Environmental Sciences2015,27,11: | 4 |
| 19 | Fabrication and Characterization of Chitosan-Silk Fibroin/Hydroxyapatite Composites via in situ Precipitation for Bone Tissue Engineering显示文摘Homogeneous chitosan-silk fibroin/hydroxyapatite(CS-SF/HA) composites were prepared by in situ precipitation method driven by a multiple-order template. The morphology of the composites was investigated by scanning electron microscope(SEM) and transmission electron microscope(TEM). The compositional analysis was carried out by X-ray diffraction analysis(XRD) and Fourier transformed infrared spectroscopy(FTIR). The mechanical properties and biocompatibility of the composites were also determined. The results indicated that the inorganic particles of uniform size(50 nm) were well-dispersed among the CS-SF matrices. The compressive modulus of the CS-SF/HA composites was enhanced with the increasing amount of SF. The in vitro results suggested that the MC3T3-E1 osteoblast-like cells on CS-SF/HA composite disks displayed strong bonding and spreading, and the cell proliferation cultured on each composite disk increased throughout the culture period for up to 7 days. Especially, the samples with higher content of SF had much better biological properties. The evidences proved that the CS-SF/HA composites possessed excellent biocompatibility. By using the freeze-drying technique, hierarchical porous scaffolds with pores ranging from 50 μm to 200 μm were obtained. This work presented the advantages of in situ precipitation method to prepare the organic/inorganic composites, and a multiple-order template was introduced in the system to improve the properties of the composites by combining the merits of each organic template. | Jing-xiao Hu Xuan Cai Shao-bo Mo Li Chen Xin-yu Shen 童华 | 2015 | Chinese Journal of Polymer Science2015,33,12: | 3 |
| 20 | Inhibiting Hv1 channel in peripheral sensory neurons attenuates chronic inflammatory pain and opioid side effects显示文摘Both opioids and nonsteroidal anti-inflammatory drugs(NSAIDS)produce deleterious side effects and fail to provide sustained relief in patients with chronic inflammatory pain.Peripheral neuroinflammation(PN)is critical for initiation and development of inflammatory pain.A better understanding of molecular mechanisms underlying PN would facilitate the discovery of new analgesic targets and the development of new therapeutics.Emerging evidence suggests that peripheral sensory neurons are not only responders to painful stimuli,but are also actively engaged in inflammation and immunity,whereas the intrinsic regulatory mechanism is poorly understood.Here we report the expression of proton-selective ion channel Hv1 in peripheral sensory neurons in rodents and humans,which was previously shown as selectively expressed in microglia in mammalian central nervous system.Neuronal Hv1 was up-regulated by PN or depolarizing stimulation,which in turn aggravates inflammation and nociception.Inhibiting neuronal Hv1 genetically or by a newly discovered selective inhibitor YHV98-4 reduced intracellular alkalization and ROS production in inflammatory pain,mitigated the imbalance in downstream SHP-1-pAKT signaling,and also diminished pro-inflammatory chemokine release to alleviate nociception and morphine-induced hyperalgesia and tolerance.Thus,our data reveal neuronal Hv1 as a novel target in analgesia strategy and managing opioids-related side effects. | Qiansen Zhang Yimin Ren Yiqing Mo Peipei Guo Ping Liao Yuncheng Luo Jie Mu Zhuo Chen Yang Zhang Ya Li Linghui Yang Daqing Liao Jie Fu Juwen Shen Wei Huang Xuewen Xu Yanyan Guo Lianghe Mei Yunxia Zuo Jin Liu Huaiyu Yang Ruotian Jiang | 2022 | Cell Research2022,32,5: | 3 |