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1372篇 您的检索式:作者名="CUI Jiang"
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1Human umbilical cord Wharton's Jelly-derived mesenchymal stem cells differentiation into nerve-like cells显示文摘Background The two most basic properties of mesenchymal stem cells (MSCs) are the capacities to self-renew indefinitely and differentiate into multiple cells and tissue types. The cells from human umbilical cord Wharton’s Jelly have properties of MSCs and represent a rich source of primitive cells. This study was conducted to explore the possibility of inducing human umbilical cord Wharton’s Jelly-derived MSCs to differentiate into nerve-like cells.Methods MSCs were cultured from the Wharton’s Jelly taken from human umbilical cord of babies delivered after full-term normal labor. Salvia miltiorrhiza and β-mercaptoethanol were used to induce the human umbilical cord-derived MSCs to differentiate. The expression of neural protein markers was shown by immunocytochemistry. The induction process was monitored by phase contrast microscopy, electron microscopy (EM), and laser scanning confocal microscopy (LSCM) .The pleiotrophin and nestin genes were measured by reverse transcription-polymerase chain reaction (RT-PCR). Results MSCs in the Wharton’s Jelly were easily attainable and could be maintained and expanded in culture. They were positive for markers of MSCs, but negative for markers of hematopoietic cells and graft-versus-host disease (GVHD)-related cells. Treatment with Salvia miltiorrhiza caused Wharton’s Jelly cells to undergo profound morphological changes. The induced MSCs developed rounded cell bodies with multiple neurite-like extensions. Eventually they developed processes that formed networks reminiscent of primary cultures of neurons. Salvia miltiorrhiza and β-mercaptoethanol also induced MSCs to express nestin, β-tubulinⅢ, neurofilament (NF) and glial fibrillary acidic protein (GFAP). It was confirmed by RT-PCR that MSCs could express pleiotrophin both before and after induction by Salvia miltiorrhiza. The expression was markedly enhanced after induction and the nestin gene was also expressed.Conclusions MSCs could be isolated from human umbilical cord Wharton’s Jelly. They were capable of differentiating into nerve-like cells using Salvia miltiorrhiza or β-mercaptoethanol. The induced MSCs not only underwent morphologic changes, but also expressed the neuron-related genes and neuronal cell markers. They may represent an alternative source of stem cells for central nervous system cell transplantation.MA Lian FENG Xue-yong CUI Bing-lin Frieda Law JIANG Xue-wu YANG Li-ye XIE Qing-dong HUANG Tian-hua 2005Chinese Medical Journal2005,,23:103
2An analysis of 10218 ulcerative colitis cases in China显示文摘AIM: To analyze the characteristics of ulcerative colitis(UC)in Chine.METHODS: From 1981 to 2000, a total of 10218 patients of UCreported in Chinese medical literature and including ourcases diagnosed were analyzed according to the diagnosticcriteria of Lennard-Jones.RESULTS: The number of cases increased by 3.08 times overthe past 10 years (2506 patients were diagnosed from 1981 to1990 while 7512 patients were diagnosed from 1991 to 2000).Lesion renge were described in 7966 patients, 5592 (70.20%)were proctosigmoiditis or proctitis, 1792(22.50%) left-sidedcolitis, 582(7.30%) pancolitis. Among the 8122 patients,2826 (34.8%) had first episole, 4272 (52.6%) had chronicrelapse, 869 (10.7%) were of chronic persist type, 154(1.9%) were of acuts fulminant tyle. The course of theillress were described in 5867 patients, 4427(75.5%) wereless than 5 years, 910 (15.5%) between 5 and 10 years, 530(9.1%) more then 10 years. Six hundred and sixteenpatients patients (6.1% ) had extraintestinal manifestations.The mean age at the diagnosis was 40.7 years( range 6-8 years, and the peak ages 30-49 years). The male to femaleratio was1.09. Among 270 patients diagnosed in ourhospital, 36 had histories of smoking, there was no negativeassociation between the severity of UC and smoking ( P >0.05), 21 smokers were followed up for one year, 15 of themhad given up smoking when the disease were diagnosed,and one year later, 7 patients relapsed, another 6 patientscontinued smoking, and one year later, 2 patients relapsed.Among 270 UC patients diagnosed in our hospital, 4 patients(1.48%) from 2 families had familial history of UC.Treatment was mentioned in 6859 patients, only SASP and/or corticosteroid only in 1276 patients(18.6%), only Chineseherbs in 1377 patients (20.1%), combined Chinese andwestern medicine in 4056 patients (59.1%), surgery wasperformed in 87 patients (1.3%), other treatments in 63patients(0.9%).CONCLUSIONS: In China, number of UC patients increasedsignificantly in the past 10 years. Lesions are commonlylocated to left side colon. The course is short with rereextraintestinal manifestations. The age of onset is relativelyhigh. Males and females are nearly equally affected. Nonegative relation was found between smoking and severityof the disease. Familial relatives are rarely involved.Traditional Chinese medicine (TCM) is widely used in thetreatment of UC.Xue-Liang Jiang Department of Gastroenterology,Chinese PLA General Hospital of Jinan Command,Jinan 250031,China Hui-Fei Cui Department of Biochemical Pharmaceutics,Shandong University,Jinan 250012,Shandong Province,China 2002World Journal of Gastroenterology2002,8,1:217
3A complete sequence and comparative analysis of a SARS-associated virus(Isolate BJ01)显示文摘The genome sequence of the Severe Acute Respiratory Syndrome (SARS)-associated virus provides essential information for the identification of pathogen(s), exploration of etiology and evolution, interpretation of transmission and pathogenesis, development of diagnostics, prevention by future vaccination, and treatment by developing new drugs. We report the complete genome sequence and comparative analysis of an isolate (BJ01) of the coronavirus that has been recognized as a pathogen for SARS. The genome is 29725 nt in size and has 11 ORFs (Open Reading Frames). It is composed of a stable region encoding an RNA-dependent RNA polymerase (composed of 2 ORFs) and a variable region representing 4 CDSs (coding sequences) for viral structural genes (the S, E, M, N proteins) and 5 PUPs (putative uncharacterized proteins). Its gene order is identical to that of other known coronaviruses. The sequence alignment with all known RNA viruses places this virus as a member in the family of Coronaviridae. Thirty putative substitutions have been identified by comparative analysis of the 5 SARS- associated virus genome sequences in GenBank. Fifteen of them lead to possible amino acid changes (non-synonymous mutations) in the proteins. Three amino acid changes, with predicted alteration of physical and chemical features, have been detected in the S protein that is postulated to beinvolved in the immunoreactions between the virus and its host. Two amino acid changes have been detected in the Mprotein, which could be related to viral envelope formation. Phylogenetic analysis suggests the possibility of non-human origin of the SARS-associated viruses but provides noevidence that they are man-made. Further efforts should focus on identifying the etiology of the SARS-associated virus and ruling out conclusively the existence of otherpossible SARS-related pathogen(s).QIN E'de ZHU Qingyu YU Man FAN Baochang CHANG Guohui SI Bingyin YANG Bao PENG Wenming JIANG Tao LIU Bohua DENG Yongqiang LIU Hong ZHANG Yu WANG Cui LI Yuquan GAN Yonghua LI Xiaoyu L Fushuang TAN Gang CAO Wuchun, YANG Ruifu Institute of Microbiology and Epidemiology, Chinese Academy of Military Medical Sciences, Beijing 100071, China WANG Jian, LI Wei, XU Zuyuan, LI Yan, WU Qingfa, LIN Wei, CHEN Weijun, TANG Lin, DENG Yajun, HAN Yujun, LI Changfeng, LEI Meng, LI Guoqing, LI Wenjie, L Hong, SHI Jianping, TONG Zongzhong, ZHANG Feng, LI Songgang, LIU Bin, LIU Siqi, DONG Wei, WANG Jun, Gane K-S Wong, YU Jun & YANG Huanming* Beijing Genomics Institute, Chinese Academy of Sciences, Beijing 101300 National Center for Genome Information, Beijing 101300, China 2003Chinese Science Bulletin2003,48,10:121
4aunalysis of the Genome Sequence of the Medicinal Plant Salvia miltiorrhiza显示文摘Haibin Xu Jingyuan Song Hongmei Luo Yujun Zhang Qiushi Li Yingjie Zhu Jiang Xu Ying Li Chi Song Bo Wang Wei Sun Guoan Shen Xin Zhang Jun Qian Aijia Ji Zhichao Xu Xiang Luo Liu He Chuyuan Li Chao Sun Haixia Yah Guanghong Cui Xiwen Li Xian 'en Li Jianhe Wei Juyan Liu Yitao Wang Alice Hayward David Nelson Zemin Ning Reuben J. Peters Xiaoquan Qi Shilin Chen 2016Molecular Plant2016,9,6:70
5H7N9 virulent mutants detected in chickens in China pose an increased threat to humans显示文摘Jianzhong Shi Guohua Deng Huihui Kong Chunyang Gu Shujie Ma Xin Yin Xianying Zeng Pengfei Cui Yan Chen Huanliang Yang Xiaopeng Wan Xiurong Wang Liling Liu Pucheng Chen Yongping Jiang Jinxiong Liu Yuntao Guan Yasuo Suzuki Mei Li Zhiyuan Qu Lizheng Guan Jinkai Zang Wenli Gu Shuyu Han Yangming Song Yuzhen Hu Zeng Wang Linlin Gu Wenyu Yang Libin Liang Hongmei Bao Guobin Tian Yanbing Li Chuanling Qiao Li Jiang Chengjun Li Zhigao Bu Hualan Chen 2017Cell Research2017,27,12:70
6Inhibitory effect of ginsenoside Rg3 combined with cyclophosphamide on growth and angiogenesis of ovarian cancer显示文摘背景人参皂甙 Rg3,从人参孤立的主要部件,禁止某些瘤生长和 angiogenesis。低剂量化疗和 antiangiogenesis 禁止者的联合比常规治疗更有效地压制试验性的瘤的生长。卵巢的癌症上的这联合的效果尚待被评估。因此,我们在人的卵巢的 cancer.Methods 的生长和 angiogenesis 上调查了人参皂甙 Rg3 和 cyclophosphamide (CTX ) 的协同 28 只女 athymic 老鼠随机被划分成 4 组 7:人参皂甙 Rg3, CTX,人参皂甙 Rg3 和 CTX 联合和控制,在与卵巢的癌症房间(SKOV-3 ) 被移植以后。老鼠为 SKOV-3cells 的 10 天后面的接种被给人参皂甙 Rg3 和 CTX 的 intraperitoneal 注射。老鼠的生活天的生活质量和数字被记录。瘤的尺寸,瘤禁止的率,生活延伸率,增殖的房间原子抗原标记索引( PCNALI ),脉管的 endothelial 房间生长因素( VEGF )和瘤纸巾的 microvessel 密度( MVD )的表示是在人参皂甙的鼠标的 estimated.Results 生活质量 Rg3 和联合治疗组更好并且比控制长生活天数。每个对待的组的平均的瘤重量是不到控制,在对待的组之中没有重要差别。对待的组的 PCNALI 比控制低。在对待的组的 MVD 价值和 VEGF 表示比控制显著地低, MVD 人参皂甙 Rg3 和联合治疗组珍视显著地比 CTX group.Conclusions 人参皂甙 Rg3 的低当独自使用了或与 CTX 结合了时,禁止了卵巢的癌症的生长和 angiogenesis。人参皂甙 Rg3 和 CTX 联合互相增强了 antitumour 效果并且与瘤改进了生活质量和老鼠的幸存时间。XU Tian-min XIN Ying CUI Man-hua JIANG Xin GU Li-ping 2007Chinese Medical Journal2007,,7:59
7Transplantation of UC-MSCs on collagen scaffold activates follicles in dormant ovaries of POF patients with long history of infertility显示文摘Premature ovarian failure(POF) is a refractory disease for clinical treatment with the goal of restoring fertility. In this study,umbilical cord mesenchymal stem cells on a collagen scaffold(collagen/UC-MSCs) can activate primordial follicles in vitro via phosphorylation of FOXO3 a and FOXO1. Transplantation of collagen/UC-MSCs to the ovaries of POF patients rescued overall ovarian function, evidenced by elevated estradiol concentrations, improved follicular development, and increased number of antral follicles. Successful clinical pregnancy was achieved in women with POF after transplantation of collagen/UC-MSCs or UC-MSCs. In summary, collagen/UC-MSC transplantation may provide an effective treatment for POF.Lijun Ding Guijun Yan Bin Wang Lu Xu Yan Gu Tong Ru Xiaoying Cui Lei Lei Jingyu Liu Xiaoqiang Sheng Bin Wang Chunxue Zhang Yanjun Yang Ruiwei Jiang Jianjun Zhou Na Kong Feifei Lu Huaijun Zhou Yannan Zhao Bing Chen Yali Hu Jianwu Dai Haixiang Sun 2018Science China(Life Sciences)2018,61,12:43
8A life support-based comprehensive treatment regimen dramatically lowers the in-hospital mortality of patients with fulminant myocarditis: a multiple center study显示文摘Fulminant myocarditis(FM) has unacceptable high mortality. This study aimed to evaluate the therapeutic efficacy of a life support-based comprehensive treatment regimen(LSBCTR), a completely novel treatment regimen, for FM. A total of 169 FM patients recruited from January 2008 to December 2018 were divided into two groups: patients receiving LSBCTR(81 cases),which includes(i) mechanical life support(positive pressure respiration, intra-aortic balloon pump with or without extracorporeal membrane oxygenation),(ii) immunomodulation therapy using sufficient doses of glucocorticoids and immunoglobulins, and(iii) application of neuraminidase inhibitors, and those receiving conventional treatment(88 cases). The endpoints were in-hospital death and heart-transplantation. Of all the population, 44 patients(26.0%) died in hospitals. Inhospital mortality was 3.7%(3/81) for LSBCTR group and 46.6%(41/88) for traditional treatment(P<0.001). Early application of LSBCTR, mechanical life support, neuraminidase inhibitors, and immunomodulation therapy significantly contributed to reduction in in-hospital mortality. This study describes a novel treatment regimen for FM patients that dramatically reduces inhospital mortality. Its generalization and clinical application will efficiently save lives although further optimization is needed.This study offers an insight that virus infection induced inflammatory waterfall results in cardiac injury and cardiogenic shock and is the therapeutic target.Sheng Li Shengyong Xu Chenze Li Xiao Ran Guanglin Cui Mengying He Kun Miao Chunxia Zhao Jiangtao Yan Rutai Hui Ning Zhou Yan Wang Jiangang Jiang Jing Zhang Daowen Wang 2019Science China(Life Sciences)2019,62,3:43
9Inhibitory effect of ginsenoside Rg3 on ovarian cancer metastasis显示文摘背景人参皂甙是从人参提取的主要部件,并且人参皂甙 Rg3 是最重要的部分之一。人参皂甙 Rg3 被发现了禁止几种肿瘤生长和转移。现在的学习被承担在人的卵巢的癌症转移和试验性的肺转移卵巢的癌症 SKOV-3 建模的可能的 mechanism.Methods 上调查人参皂甙 Rg3 的效果,导致肿瘤的 angiogenesis 的试金被用来在肿瘤转移和 angiogenesis 上观察 Rg3 的禁止的效果。在 vitro 的 SKOV-3 房间的侵略能力上的 Rg3 的效果被 Boyden 房间检测,并且染色的 immunofluorescence 被用来认出矩阵 metalloproteinase 的表示( MMP-9 ) 9 卵巢的癌症在在试验性的肺转移的 SKOV-3 cells.Results 当模特儿,在肺和向在每个人参皂甙 Rg3 组的肿瘤团面向的容器的肿瘤殖民地的数字,比控制的低组。在有人参皂甙 Rg3.Conclusions 人参皂甙 Rg3 的治疗能显著地禁止卵巢的癌症的转移以后,侵略能力和 SKOV-3 房间的 MMP-9 表示显著地减少了。禁止的效果部分由于导致肿瘤的 angiogenesis 的抑制和侵略能力和 SKOV-3 房间的 MMP-9 表示的减少。XU Tian-min CUI Man-hua XIN Ying GU Li-ping JIANG Xin SU Man-man WANG Ding-ding WANG Wen-jia 2008Chinese Medical Journal2008,,15:35
10Anisotropic coding metamaterials and their powerful manipulation of differently polarized terahertz waves显示文摘Metamaterials based on effective media can be used to produce a number of unusual physical properties(for example,negative refraction and invisibility cloaking)because they can be tailored with effective medium parameters that do not occur in nature.Recently,the use of coding metamaterials has been suggested for the control of electromagnetic waves through the design of coding sequences using digital elements‘0’and‘1,'which possess opposite phase responses.Here we propose the concept of an anisotropic coding metamaterial in which the coding behaviors in different directions are dependent on the polarization status of the electromagnetic waves.We experimentally demonstrate an ultrathin and flexible polarization-controlled anisotropic coding metasurface that functions in the terahertz regime using specially designed coding elements.By encoding the elements with elaborately designed coding sequences(both 1-bit and 2-bit sequences),the x-and y-polarized waves can be anomalously reflected or independently diffused in three dimensions.The simulated far-field scattering patterns and near-field distributions are presented to illustrate the dual-functional performance of the encoded metasurface,and the results are consistent with the measured results.We further demonstrate the ability of the anisotropic coding metasurfaces to generate a beam splitter and realize simultaneous anomalous reflections and polarization conversions,thus providing powerful control of differently polarized electromagnetic waves.The proposed method enables versatile beam behaviors under orthogonal polarizations using a single metasurface and has the potential for use in the development of interesting terahertz devices.Shuo Liu Tie Jun Cui Quan Xu Di Bao Liangliang Du Xiang Wan Wen Xuan Tang Chunmei Ouyang Xiao Yang Zhou Hao Yuan Hui Feng Ma Wei Xiang Jiang Jiaguang Han Weili Zhang Qiang Cheng 2016Light(Science & Applications)2016,5,1:36
11Effects of coal rank on physicochemical properties of coal and on methane adsorption显示文摘Yuanping Cheng Haina Jiang Xiaolei Zhang Jiaqing Cui Cheng Song Xuanliang Li 2017International Journal of Coal Science & Technology2017,4,2:31
12Broadband diffusion of terahertz waves by multi-bit coding metasurfaces显示文摘The terahertz region is a special region of the electromagnetic spectrum that incorporates the advantages of both microwaves and infrared light waves.In the past decade,metamaterials with effective medium parameters or gradient phases have been studied to control terahertz waves and realize functional devices.Here,we present a new approach to manipulate terahertz waves by using coding metasurfaces that are composed of digital coding elements.We propose a general coding unit based on a Minkowski closed-loop particle that is capable of generating 1-bit coding(with two phase states of 0 and 180°),2-bit coding(with four phase states of 0,90°,180°,and 270°),and multi-bit coding elements in the terahertz frequencies by using different geometric scales.We show that multi-bit coding metasurfaces have strong abilities to control terahertz waves by designing-specific coding sequences.As an application,we demonstrate a new scattering strategy of terahertz waves—broadband and wide-angle diffusion—using a 2-bit coding metasurface with a special coding design and verify it by both numerical simulations and experiments.The presented method opens a new route to reducing the scattering of terahertz waves.Li-Hua Gao Qiang Cheng Jing Yang Shao-Jie Ma Jie Zhao Shuo Liu Hai-Bing Chen Qiong He Wei-Xiang Jiang Hui-Feng Ma Qi-Ye Wen Lan-Ju Liang Biao-Bing Jin Wei-Wei Liu Lei Zhou Jian-Quan Yao Pei-Heng Wu Tie-Jun Cui 2015Light(Science & Applications)2015,4,1:31
13Inhibiting Effects of Achyranthes Bidentata Polysaccharide and Lycium Barbarum Polysaccharide on Nonenzyme Glycation in D-galactose Induced Mouse Aging Model显示文摘To investigate the inhibiting effects and mechanism of achyranthes bidentata polysaccharide (ABP) and lycium barbarum polysaccharide (LBP) on nonenzyme glycation in D-galactose induced mouse aging model. Methods Serum AGE levels were determined by AGE-ELISA, MTT method was used to determine lymphocyte proliferation, IL-2 activity was determined by a bioassay method. Spontaneous motor activity was used to detect mouse's neuromuscular movement, latency of step-through method was used to examine learning and memory abilities of mouse, colormetric assay was used to determine hydroxyproline concentration in mouse skin, pyrogallol autoxidation method was used to determine superoxide dismutase (SOD) activity of erythrocytes. Results Decreased levels of serum AGE, hydroxyproline concentration in mouse skin and spontaneous motor activity in D-galactose mouse aging model were detected after treated with ABP or LBP, while lymphocyte proliferation and IL-2 activity, learning and memory abilities,SOD activity of erythrocytes, were enhanced. Conclusions ABP and LBP could inhibit nonenzyme glycation in D-galactose induced mouse aging model in vivo and ABP has a better inhibiting effect than LBP.HONG-BIN DENG, DA-PENG CUI, JIAN-MING JIANG, YAN-CHUN FENG,NIAN-SHENG CAI, AND DIAN-DONG LIInstitute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China 2003Biomedical and Environmental Sciences2003,16,3:33
14Neuroprotective effects of salvianolic acid B against oxygen-glucose deprivation/reperfusion damage in primary rat cortical neurons显示文摘背景服的 ischemia-reperfusion 损害是为在 ischemic 的神经原的损失的主要原因脑血管的疾病。因此,深深地理解它的致病并且发现一个新目标是要解决的关键问题。这研究试图调查对氧葡萄糖 deprivation/reperfusion (OGD/RP ) 的 salvianolic 酸 B (SalB ) 的效果在主要老鼠损坏的 neuroprotective 外皮的 neurons.Methods 新生的威斯特老鼠的主要文化随机被划分成控制组, OGD/RP 组和 SalB 处理组(10 mg/L ) 。房间模型被分别地剥夺氧和葡萄糖 3 个小时和灌注 3 个小时和 24 个小时建立。神经原生存能力被 MTT 试金决定。细胞的反应的氧种类(ROS ) 的水平被荧光灯的标记检测方法和纺纱套住技术分别地。neuronal Mn-superoxide dismutase (Mn 草皮) 的活动,过氧化氢酶(猫) 和谷胱甘肽 peroxidase (GSH-PX ) 是由 chromatometry 的 assayed。线粒体膜潜力(m) 是流动 cytometry 分析的份量上。细胞色素 c 的版本率被西方的弄污检测。neuronal 超微结构被传播电子显微镜学观察。统计意义被 Student-Newman-Keuls test.Results OGD/RP 跟随的变化(ANOVA ) 的分析评估增加了细胞的 ROS 的水平,但是减少房间生存能力和 Mn 草皮,猫和 GSH-PX 的活动;SalB 处理显著地减少了 ROS (P 0.05 ) 的水平;并且提高了房间生存能力(P 0.05 ) 和这些 antioxidases (P 0.05 ) 的活动。另外, OGD/RP 导致了 m 的荧光价值减少并且到上升的细胞色素 c 的版本率尤其是;SalB 显著地提高了 m (P 0.01 ) 的水平并且压抑细胞色素 c (P 0.05 ) 的版本率;它也改善了 neuronal 词法 injury.Conclusion SalB 的 neuroprotection 可以被归因于 ROS 的消除和 apoptosis 的抑制。WANG Yun JIANG Yu-feng HUANG Qi-fu GE Gui-ling CUI Wei 2010Chinese Medical Journal2010,,24:30
15The Chromosome-Level Reference Genome of Tea Tree Unveils Recent Bursts of Nonautonomous LTR Retrotransposons in Driving Genome Size Evolution显示文摘Dear Editor,The tea tree Camellia sinensis,a member of the genus Camellia in the Theaceae family,includes two major cultivated varieties,C.sinensis var.assamica(CSA\Assam type)and C.sinensis var.sinensis(CSS;Chinese type)(Ming and Bartholomew,2007).Due to the high economic importance of the tea tree,considerable efforts have been made to explore genetic basis of the biosynthesis of natural metabolites that determine health benefits and diverse tea flavors(Shi et al.,2011;Li et al.,2011;Li et al.,2015;Xia et aL,2017;Liu et al.,2019).Qun-Jie Zhang Wei L i Kui Li Hong Nan Cong Shi Yun Zhang Zhang-Yan Dai Yang-Lei Lin Xiao-Lan Yang Yan Tong Dan Zhang Cui Lu Li-Ying Feng Chen-Feng Wang Xiao-Xin Liu Jian-An Huang Wen-Kai Jiang Xing-Hua Wang Xing-Cai Zhang Evan E.Eichler Zhong-Hua Liu and Li-Zhi Gao 2020Molecular Plant2020,13,7:27
16Zircon SHRIMP U-Pb geochronology of the Neoproterozoic Chengjiang Formation in central Yunnan Province(SW China) and its geological significance显示文摘The Chengjiang Formation is the earliest continental clastic deposit after the Jinning Orogeny in central Yunnan Province,and therefore its accurate depositional age is significant for understanding the formation and evolution of the Neoproterozoic rift basins in southern China.However,hampered by accuracy of the dating technique,the existing age data for the Chengjiang Formation are not very reliable.A large number of magmatic zircons were obtained from the tuff interbed in the lower part of the Chengjiang Formation in Jinyang area and the bottom part of the Chengjiang Formation in Dongchuan area,central Yunnan Province,and high-precision SHRIMP U-Pb dating was carried out on these zircons.The results show that the weighted mean 206 Pb/238 U ages are 797.8±8.2 and 803.1±8.7 Ma respectively.In combination with related geological evidence,it has been demonstrated that the bottom boundary age of the Chengjiang Formation should be 800±5 Ma,whereas the top boundary age could be ca 725 Ma.By synthetically analyzing the latest age data for the relevant strata,it has been confirmed that the Chengjiang Formation should be correlated with the Suxiong Formation and the Kaijianqiao Formation in western Sichuan Province,the Liantuo Formation in the middle and lower Yangtze,the Hongchicun Formation and the Shangshu Formation in northern Zhejiang Province,the Puling Formation in southern Anhui Province,the Luokedong Formation and the Majianqiao Formation in northwestern Jiangxi Province,the Wuqiangxi Formation in northwestern Hunan Province,the Fanzhao Formation and the Qingshuijiang Formation in southeastern Guizhou Province,and the Sanmenjie Formation and the Gongdong Formation in northern Guangxi Province.Sedimentary cycle analysis shows that the sedimentary filling sequence of the Neoproterozoic rift basins in southern China can be divided into four cycles.Among them,Cycle II began at ca.800 Ma,accompanied by intensive tectonic-thermal events.The zircon U-Pb ages from the bottom of the Chengjiang Formation reported in this paper indicate that the Neoproterozoic Kangdian rift subbasin probably started to develop at ca.800 Ma and therefore missed Cycle I of the Neoproterozoic sedimentary filling sequence in southern China.JIANG XinSheng WANG Jian CUI XiaoZhuang ZHUO JieWen XIONG GuoQing LU JunZe LIU JianHui 2012Science China Earth Sciences2012,55,11:25
17Structure of MERS-CoV spike receptor-binding domain complexed with human receptor DPP4显示文摘最近的尖铁 glycoprotein (S) 鉴别中东呼吸症候群 coronavirus (MERS-CoV ) 指向细胞的受体, dipeptidyl peptidase 4 (DPP4 ) 。顺序比较和当模特儿的分析在病毒的尖铁上揭示了一个通常认为的受体绑定领域(RBD ) ,它调停这个相互作用。我们报导 3.0 Å MERS-CoV RBD 的决定水晶结构跳了到人的 DPP4 的细胞外的领域。我们的结果证明 MERS-CoV RBD 由一个核心和受体绑定子域组成。受体绑定子域与 DPP4 β 交往;推进器然而并非它的内在的 hydrolase 领域。MERS-CoV RBD 和相关 SARS-CoV RBD 分享他们的核心子域的结构的类似的高度,但是在受体绑定子域是尤其是分叉的。Mutagenesis 研究在为到 DPP4 和入口的病毒的绑定是批评的进目标房间的受体绑定子域识别了几关键残余。在在 MERS-CoV RBD 和 DPP4 之间的接口的原子细节提供病毒和受体相互作用的结构的理解,它能对 MERS-CoV 感染指导治疗学和疫苗的开发。Nianshuang Wang Xuanling Shi Liwei Jiang Senyan Zhang Dongli Wang Pei Tong Dongxing Guo Lili Fu Ye Cui Xi Liu Kelly C Arledge Ying-Hua Chen Linqi Zhang Xinquan Wang 2013Cell Research2013,23,8:26
18Treatment of corticosteroid-resistant ulcerative colitis with oral low molecular weight heparin显示文摘Cui HF Jiang XL 1999World Journal of Gastroenterology1999,5,5:24
19Progresses on microwave remote sensing of land surface parameters显示文摘Highly accurate observations at various scales on the land surface are urgently needed for the studies of many areas,such as hydrology,meteorology,and agriculture.With the rapid development of remote sensing techniques,remote sensing has had the capacity of monitoring many factors of the Earth's land surface.Especially,the space-borne microwave remote sensing systems have been widely used in the quantitative monitoring of global snow,soil moisture,and vegetation parameters with their all-weather,all-time observation capabilities and their sensitivities to the characteristics of land surface factors.Based on the electromagnetic theories and microwave radiative transfer equations,researchers have achieved great successes in the microwave remote sensing studies for different sensors in recent years.This article has systematically reviewed the progresses on five research areas including microwave theoretical modeling,microwave inversion on soil moisture,snow,vegetation and land surface temperatures.Through the further enrichment of remote sensing datasets and the development of remote sensing theories and inversion techniques,remote sensing including microwave remote sensing will play a more important role in the studies and applications of the Earth systems.SHI JianCheng DU Yang DU JinYang JIANG LingMei CHAI LinNa MAO KeBiao XU Peng NI WenJian XIONG Chuan LIU Qiang LIU ChenZhou GUO Peng CUI Qian LI YunQing CHEN Jing WANG AnQi LUO HeJia WANG YinHui 2012Science China Earth Sciences2012,55,7:24
20Single-cell RNA-seq highlights intra-tumoral heterogeneity and malignant progression in pancreatic ductal adenocarcinoma显示文摘Pancreatic ductal adenocarcinoma (PDAC) is the most common type of pancreatic cancer featured with high intra-tumoral heterogeneity and poor prognosis. To comprehensively delineate the PDAC intra-tumoral heterogeneity and the underlying mechanism for PDAC progression, we employed single-cell RNA-seq (scRNA-seq) to acquire the transcriptomic atlas of 57,530 individual pancreatic cells from primary PDAC tumors and control pancreases, and identified diverse malignant and stromal cell types, including two ductal subtypes with abnormal and malignant gene expression profiles respectively, in PDAC. We found that the heterogenous malignant subtype was composed of several subpopulations with differential proliferative and migratory potentials. Cell trajectory analysis revealed that components of multiple tumor-related pathways and transcription factors (TFs) were differentially expressed along PDAC progression. Furthermore, we found a subset of ductal cells with unique proliferative features were associated with an inactivation state in tumor-infiltrating T cells, providing novel markers for the prediction of antitumor immune response. Together, our findings provide a valuable resource for deciphering the intra-tumoral heterogeneity in PDAC and uncover a connection between tumor intrinsic transcriptional state and T cell activation, suggesting potential biomarkers for anticancer treatment such as targeted therapy and immunotherapy.Junya Peng Bao-Fa Sun Chuan-Yuan Chen Jia-Yi Zhou Yu-Sheng Chen Hao Chen Lulu Liu Dan Huang Jialin Jiang Guan-Shen Cui Ying Yang Wenze Wang Dan Guo Menghua Dai Junchao Guo Taiping Zhang Quan Liao Yi Liu Yong-Liang Zhao Da-Li Han Yupei Zhao Yun-Gui Yang Wenming Wu 2019Cell Research2019,29,9:24
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