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862篇 您的检索式:作者名="Teng Yang"
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1Sodium oligomannate therapeutically remodels gut microbiota and suppresses gut bacterial amino acids-shaped neuroinflammation to inhibit Alzheimer's disease progression显示文摘Recently,increasing evidence has suggested the association between gut dysbiosis and Alzheimer's disease(AD)progression,yet the role of gut microbiota in AD pathogenesis remains obscure.Herein,we provide a potential mechanistic link between gut microbiota dysbiosis and neuroinflammation in AD progression.Using AD mouse models,we discovered that,during AD progression,the alteration of gut microbiota composition leads to the peripheral accumulation of phenylalanine and isoleucine,which stimulates the differentiation and proliferation of pro-inflammatory T helper 1(Thl)cells.The brain-infiltrated peripheral Th1 immune cells are associated with the Ml microglia aaivation,contributing to AD-associated neuroinflammation.Importantly,the elevation of phenylalanine and isoleucine concentrations and the increase of Th1 cell frequency in the blood were also observed in two small independent cohorts of patients with mild cognitive impairment(MCI)due to AD.Furthermore,GV-971,a sodium oligomannate that has demonstrated solid and consistent cognition improvement in a phase 3 clinical trial in China,suppresses gut dysbiosis and the associated phenylalanine/isoleucine accumulation,harnesses neuroinflammation and reverses the cognition impairment.Together,our findings highlight the role of gut dysbiosis-promoted neuroinflammation in AD progression and suggest a novel strategy for AD therapy by remodelling the gut microbiota.Xinyi Wang Guangqiang Sun Teng Feng Jing Zhang Xun Huang Tao Wang Zuoquan Xie Xingkun Chu Jun Yang Huan Wang Shuaishuai Chang Yanxue Gong Lingfei Ruan Guanqun Zhang Siyuan Yan Wen Lian Chen Du Dabing Yang Qingli Zhang Feifei Lin Jia Liu Haiyan Zhang Changrong Ge Shifu Xiao Jian Ding Meiyu Geng 2019Cell Research2019,29,10:192
2Identification of a novel coronavirus causing severe pneumonia in human:a descriptive study显示文摘Background:Human infections with zoonotic coronaviruses(CoVs),including severe acute respiratory syndrome(SARS)-CoV and Middle East respiratory syndrome(MERS)-CoV,have raised great public health concern globally.Here,we report a novel batorigin CoV causing severe and fatal pneumonia in humans.Methods:We collected clinical data and bronchoalveolar lavage(BAL)specimens from five patients with severe pneumonia from Wuhan Jinyintan Hospital,Hubei province,China.Nucleic acids of the BAL were extracted and subjected to next-generation sequencing.Virus isolation was carried out,and maximum-likelihood phylogenetic trees were constructed.Results:Five patients hospitalized from December 18 to December 29,2019 presented with fever,cough,and dyspnea accompanied by complications of acute respiratory distress syndrome.Chest radiography revealed diffuse opacities and consolidation.One of these patients died.Sequence results revealed the presence of a previously unknownβ-CoV strain in all five patients,with 99.8%to 99.9%nucleotide identities among the isolates.These isolates showed 79.0%nucleotide identity with the sequence of SARS-CoV(GenBank NC_004718)and 51.8%identity with the sequence of MERS-CoV(GenBank NC_019843).The virus is phylogenetically closest to a bat SARS-like CoV(SL-ZC45,GenBank MG772933)with 87.6%to 87.7%nucleotide identity,but is in a separate clade.Moreover,these viruses have a single intact open reading frame gene 8,as a further indicator of bat-origin CoVs.However,the amino acid sequence of the tentative receptor-binding domain resembles that of SARS-CoV,indicating that these viruses might use the same receptor.Conclusion:A novel bat-borne CoV was identified that is associated with severe and fatal respiratory disease in humans.Li-Li Ren Ye-Ming Wang Zhi-Qiang Wu Zi-Chun Xiang Li Guo Teng Xu Yong-Zhong Jiang Yan Xiong Yong-Jun Li Xing-Wang Li Hui Li Guo-Hui Fan Xiao-Ying Gu Yan Xiao Hong Gao Jiu-Yang Xu Fan Yang Xin-Ming Wang Chao Wu Lan Chen Yi-Wei Liu Bo Liu Jian Yang Xiao-Rui Wang Jie Dong Li Li Chao-Lin Huang Jian-Ping Zhao Yi Hu Zhen-Shun Cheng Un-Lin Liu Zhao-Hui Qian Chuan Qin Qi Jin Bin Cao Jian-Wei Wang 2020Chinese Medical Journal2020,,9:99
3Mettl3-/Mettl14-mediated mRNA N6-methyladenosine modulates murine spermatogenesis显示文摘精子发生在双 spermatogonial 干细胞(SSC ) 哪个生产 haploid 精子期间是一个区别过程。这个高度专业化的过程精确在 transcriptional, posttranscriptional,和翻译层次被控制。这里,我们报导那 N 6-methyladenosine (m 6 一) ,调整基因表示的一个 epitranscriptomic 标记,在精子发生期间起必要作用。我们现在的全面 m 6 从五个发展阶段的老鼠 spermatogenic 房间的 mRNA methylomes:无差别的 spermatogonia,类型 A 1 spermatogonia, preleptotene spermatocytes, pachytene/diplotene spermatocytes,和圆 spermatids。m 6 有 Vasa-Cre 的 RNA methyltransferase Mettl3 或 Mettl14 引起 m 6 SSC 的 A 和弄空。m 6 为 SSC 增长 / 区别被要求的抄本的一个弄空 dysregulates 翻译。在有 Stra8-GFPCre 的先进细菌房间的 Mettl3 和 Mettl14 的联合删除破坏精子形式,而有在先进细菌房间的 Mettl3 或 Mettl14 的单个删除的老鼠显示出正常精子发生。从双异种老鼠展览的 spermatids 损害了为精子形式是必要的 haploid 特定的基因的翻译。这研究加亮 mRNA m 6 在 germline 开发的修正,潜在地保证在精子发生的不同阶段协调了翻译。Zhen Lin Phillip J Hsu Xudong Xing Jianhuo Fang Zhike Lu Qin Zou Ke-Jia Zhang Xiao Zhang Yuchuan Zhou Teng Zhang Youcheng Zhang Wanlu Song Guifang Jia Xuerui Yang Chuan He Ming-Han Tong 2017Cell Research2017,27,10:61
4Cardioprotection of sevoflurane postconditioning by activating extracellular signal-regulated kinase 1/2 in isolated rat hearts^1显示文摘瞄准:1/2 免于的细胞外的调整信号的 kinase (英皇家空军之阶级最低之兵) 的激活是化学家灌注损害。ERK1/2 是否调停 sevoflurane 柱子调节的 cardioprotection 是未知的。我们测试了 sevoflurane 柱子调节是否经由 ERK1/2-depen-dent 机制生产 cardioprotection。方法:在协议 1 , 酒Langendorff 的 Sprague Dawley 老鼠心( n=84 , 12 每组)与假冒的组的异常,受到 90 min 灌注跟随的 30 min 局部缺血并且被分到未经治疗(控制)组,由 4 个周期列在后面是化学家帖子调节(各个的 25 s ),3%( v/v ) sevoflurane 帖子调节(为 5 min 和冲刷的 10 min ),并且 PD98059 溶剂 DMSO (<0.2%), ERK1/2 禁止者 PD98059 ( 20 μmol/L ),和 Sevo+PD 管理。在平衡的 30 min 的左室的 hemodynamics 和冠的流动分别地在灌注的 30, 60,和 90 min 被记录。尖锐梗塞尺寸被 triphenyltetrazolium 氯化物染色测量。线粒体的配置被一台电子显微镜观察。西方的污点分析被用来在灌注的结束决定 cytosolic 和 mitochondrial 细胞色素 c 的内容。在协议 2,在灌注的 15 min 以后,总数的表示和 ERK1/2 和它的下游的目标 p70S6K 的 phosphorylated 形式由西方的弄污是坚定的。结果:在基线 hemodynamics 的差别都没在试验性的组(P>0.05 ) 之中被观察。在灌注以后,与控制组相比, sevoflurane 柱子调节并且显著地是化学家柱子调节(P<0.05 ) 改进了功能的恢复并且(P<0.05 ) 大部分减少了心肌的梗塞尺寸(22.9%± 4 .6% 和 21.2%± 3 .8% ,对 39.4%± 5 .7% ,两 P<0.05 ) 。调停 Sevoflurane 的保护被 PD98059 废除。结论:由 sevoflurane 的麻药柱子调节有效地由在 vitro 激活 ERK1/2 免于灌注损坏。Hong-tao CHEN Cheng-xiang YANG Heng LI Cheng-jing ZHANG Xian-jie WEN Jun ZHOU You-ling Fan Teng HUANG Yin-ming ZENG 2008Acta Pharmacologica Sinica2008,29,8:41
5外刊拾贝显示文摘1.根据2018年美国糖尿病学会标准诊断中国糖尿病患病率:全国横断面研究目的:评估糖尿病患病率及其危险因素。设计:基于人群的横断面研究。背景:2015-2017年中国大陆31省份全国横断面数据。调查对象:75880名18周岁及以上代表中国大陆人口的成年人样本。主要观察指标:根据2018年美国糖尿病学会和世界卫生组织标准诊断中国成人不同性别、区域和种族的糖尿病患病率。通过问卷的方式记录调查对象的社会人口学信息、生活方式和疾病史。单忠艳 Li Y Teng D Shi X Ba J 王看然 李启富 Wang K Hu J Yang J 2020国际内分泌代谢杂志2020,40,5:42
6One-step generation of p53 gene biallelic mutant Cynomolgus monkey via the CRISPR/Cas system显示文摘Haifeng Wan Chunjing Feng Fei Teng Shihua Yang Baoyang Hu Yuyu Niu Andy Peng Xiang Weizhen Fang Weizhi Ji Wei Li Xiaoyang Zhao Qi Zhou 2015Cell Research2015,25,2:39
7The Association of Maternal Body Composition and Dietary Intake with the Risk of Gestational Diabetes Mellitus during the Second Trimester in a Cohort of Chinese Pregnant Women显示文摘Objective To investigate the association of maternal body composition and dietary intake with the risk of gestational diabetes mellitus(GDM). Methods A total 154 GDM subjects and 981 controls were enrolled in a prospective cohort study in 11 hospitals from May 20, 2012 to December 31, 2013. Bioelectrical impedance analysis and dietary surveys were used to determine body composition and to evaluate the intake of nutrients in subjects at 21-24 weeks' gestation(WG). Logistic regression analysis was applied to explore the relationships of maternal body composition and dietary intake with the risk of GDM morbidity. Results Age, pre-pregnant body weight(BW), and body mass index(BMI) were associated with increased risk of GDM. Fat mass(FM), fat mass percentage(FMP), extracellular water(ECW), BMI, BW, energy, protein, fat, and carbohydrates at 21-24 WG were associated with an increased risk of GDM. In contrast, fat free mass(FFM), muscular mass(MM), and intracellular water(ICW) were associated with a decreased risk of GDM. Conclusion Maternal body composition and dietary intake during the second trimester of pregnancy were associated with the risk of GDM morbidity.Xu Qing Gao Zhi Ying Li Li Ming Wang Lu Zhang Qian Teng Yue Zhao Xia Ge Sheng Jing Hong Jiang Yang Yong Tao Liu Xiao Jun Lyu Chun Jian Mao Lun Yu Xiao Ming Liu Ying Hua Kong Ai Jing Yang Xue Yan Liu Zhao Zhang Yong Wang Jin Zhang Xin Sheng Xue Chang Yong Lu Yan Ping 2016Biomedical and Environmental Sciences2016,29,1:29
8Gastric Lgr5+ stem cells are the cellular origin of invasive intestinal-type gastric cancer in mice显示文摘Xiu-Bin Li Guan Yang Liang Zhu Yu-Ling Tang Chong Zhang Zhenyu Ju Xiao Yang Yan Teng 2016Cell Research2016,26,7:20
9Predictive factors for the local recurrence and distant metastasis of phyllodes tumors of the breast: a retrospective analysis of 192 cases at a single center显示文摘The local recurrence rate of phyllodes tumors of the breast varies widely among different subtypes, and distant metastasis is associated with poor survival. This study aimed to identify factors that are predictive of local recurrence-free survival(LRFS), distant metastasis-free survival(DMFS), and overall survival(OS) in patients with phyllodes tumors of the breast. Clinical data of all patients with a phyllodes tumor of the breast(n = 192) treated at Sun Yat-sen University Cancer Center between March 1997 and December 2012 were reviewed. The Pearson χ2 test was used to investigate the relationship between clinical features of patients and histotypes of tumors. Univariate and multivariate Cox regression analyses were performed to identify factors that are predictive of LRFS, DMFS, and OS. In total, 31(16.1%) patients developed local recurrence, and 12(6.3%) developed distant metastasis. For the patients who developed local recurrence, the median age at the diagnosis of primary tumor was 33 years(range, 17-56 years), and the median size of primary tumor was 6.0 cm(range, 0.8-18 cm). For patients who developed distant metastasis, the median age at the diagnosis of primary tumor was 46 years(range, 24-68 years), and the median size of primary tumor was 5.0 cm(range, 0.8-18 cm). In univariate analysis, age, size, hemorrhage, and margin status were found to be predictive factors for LRFS(P = 0.009, 0.024, 0.004, and 0.001, respectively), whereas histotype, epithelial hyperplasia, margin status, and local recurrence were predictors of DMFS(P = 0.001, 0.007, 0.007, and < 0.001, respectively). In multivariate analysis, independent prognostic factors for LRFS included age [hazard ratio(HR) = 3.045, P = 0.005], tumor size(HR = 2.668, P = 0.013), histotype(HR = 1.715, P = 0.017), and margin status(HR = 4.530, P< 0.001). Histotype(DMFS: HR = 4.409, P = 0.002; OS: HR = 4.194, P = 0.003) and margin status(DMFS: HR = 2.581, P = 0.013; OS: HR = 2.507, P = 0.020) were independent predictors of both DMFS and OS. In this cohort, younger age, a larger tumor size, a higher tumor grade, and positive margins were associated with lower rates of LRFS. Histotype and margin status were found to be independent predictors of DMFS and OS.Jing Wei Yu-Ting Tan Yu-Cen Cai Zhong-Yu Yuan Dong Yang Shu-Sen Wang Rou-Jun Peng Xiao-Yu Teng Dong-Geng Liu Yan-Xia Shi 2014Chinese Journal of Cancer2014,33,10:18
10Design and fabrication of broadband ultralow reflectivity black Si surfaces by laser micro/nanoprocessing显示文摘Light collection efficiency is an important factor that affects the performance of many optical and optoelectronic devices.In these devices,the high reflectivity of interfaces can hinder efficient light collection.To minimize unwanted reflection,anti-reflection surfaces can be fabricated by micro/nanopatterning.In this paper,we investigate the fabrication of broadband anti-reflection Si surfaces by laser micro/nanoprocessing.Laser direct writing is applied to create microstructures on Si surfaces that reduce light reflection by light trapping.In addition,laser interference lithography and metal assisted chemical etching are adopted to fabricate the Si nanowire arrays.The anti-reflection performance is greatly improved by the high aspect ratio subwavelength structures,which create gradients of refractive index from the ambient air to the substrate.Furthermore,by decoration of the Si nanowires with metallic nanoparticles,surface plasmon resonance can be used to further control the broadband reflections,reducing the reflection to below 1.0%across from 300 to 1200 nm.An average reflection of 0.8%is achieved.Jing Yang Fangfang Luo Tsung Sheng Kao Xiong Li Ghim Wei Ho Jinghua Teng Xiangang Luo Minghui Hong 2014Light(Science & Applications)2014,3,1:17
11Cytotoxin-associated gene-A-seropositive virulent strains of Helicobacter pylori and atherosclerotic diseases: a systematic review显示文摘客观 A 系统的元分析被执行探索联系细胞毒素的基因的角色 -- Helicobacterpylori 的 A (CagA ) seropositive 紧张(H。塔门)在从 Medline , EMBASE , CBMdisc , CNKI 和 Cochrane 的动脉粥样硬化患者 diseases.Data 来源数据的致病,合作数据库是 searched.Similar 搜索策略被用于每这些 databases.Study 选择评论在 H.pylori 的易传染的、长期的剧毒的 CagA 紧张上被限制为盒子控制研究,包含 ischemic 击和冠的心疾病的风险,不合格的研究被排除。二个评论家独立地提取了数据并且完全估计了学习 quality.Results 26 盒子控制研究(ischemic 击上的 11 研究和冠的心疾病上的 15 研究) 被检索并且考虑。联合数据表明长期的 seropositive H 的剧毒的紧张。pylori 感染有增加 ischemic 中风和冠的心疾病的风险的一个趋势,产出 2.68 的分享的 Ors (95% CI:2.20, 3.27 ) 并且 2.11 (95% CI:1.70, 2.62 ) 分别地。我们也执行了亚群分析,把全部的人口划分成白种人和中国亚群。通过亚群分析,没有重要差别在我们的结果支持的 subgroups.Conclusions 之间被发现 CagA-seropositive 紧张感染显著地与危险性被联系到 ischemic 击和冠的心疾病的假设。有动脉粥样硬化患者疾病的协会的大小需要被未来的研究证实, CagA-seropositive 紧张根除上的研究是更重要的。ZHANG Shuo GUO Yang MA Yan TENG Yue 2008Chinese Medical Journal2008,,10:17
12Hanning self-convolution window and its application to harmonic analysis显示文摘The Hanning self-convolution window (HSCW) is proposed in this paper. And the phase difference correction algorithm based on the discrete spectrum and the HSCW is given. The HSCW has a low peak side lobe level, a high side lobe roll-off rate, and a simple spectrum representation. Hence, leakage errors and harmonic interferences can be considerably reduced by weighting samples with the HSCW, the parameter estimation by the HSCW-based phase difference correction algorithm is free of solving high order equations, and the overall method can be easily implemented in embedded systems. Simulation and application results show that the HSCW-based phase difference correction algorithm can suppress the impacts of fundamental frequency fluctuation and white noise on harmonic parameter estimation, and the HSCW is advantageous over existing combined cosine windows in terms of harmonic analysis performance.WEN He TENG ZhaoSheng GUO SiYu WANG JingXun YANG BuMing WANG Yi CHEN Tao 2009Science China(Technological Sciences)2009,52,2:15
13Involvement of sphingoid bases in mediating reactive oxygen intermediate production and programmed cell death in Arabidopsis显示文摘Sphingolipids 被建议了在植物房间为一连串的细胞的发信号活动充当第二个送信人,包括压力回答并且规划了房间死亡(PCD ) 。然而,这些过程不是的机制 underpinning 很好理解。这里,我们报导那 Arabidopsis 异种, fumonisin B1 抵抗 11-1 ( fbr 11-1 )没能产生反应的氧中介( ROI ),不能当异种被 fumonisin B ( 1 )( FB ( 1 ))质问时,开始 PCD , ceramide synthase 的一个特定的禁止者。显示的分子的分析 FBR11 编码一个长链的底 1 (LCB1 ) 丝氨酸 palmitoyltransferase (SPT ) 的子单元,它催化 de novo sphingolipid 的第一限制率的步合成。sphingolipid 集中的集体度谱的分析表明而 fbr 11-1 变化没影响 sphingoid 底的基础层次,异种响应 FB (1 ) 显示出 sphingoid 底的稀释形成。由一个直接的喂实验,我们证明免费 sphingoid 底 dihydrosphingosine, phytosphingosine 和鞘氨醇高效地导致产生由房间死亡跟随了的 ROI。相反地, dihydrosphingosine 导致的 ROI 产生和房间死亡被它的 phosphorylated 形式 dihydrosphingosine-1-phosphate 明确地以一种剂量依赖者方式堵住,建议在一个免费 sphingoid 底和它的 phosphorylated 衍生物之间的动态平衡的维护对决定房间命运批评。因为 sphingolipid 水平的改变发生在 ROI 生产以前,我们建议免费 sphingoid 库在 Arabidopsis 涉及 PCD 的控制,大概在收到不同发展或环境的暗示之上通过 ROI 的规定铺平。Lihua Shi Jacek Bielawski Jinye Mu Haili Dong Chong Teng Jian Zhang Xiaohui Yang Nario Tomishige Kentaro Hanada Yusuf A Hannun Jianru Zuo 2007Cell Research2007,17,12:12
14Relationship between the cytotoxin-associated gene-A status of H pylori strains and cerebral infarction in European Caucasians and Chinese Han: A meta-analysis显示文摘AIM:To study the relationship between the cytotoxin-associated gene-A (CagA) status of H pylori strains and cerebral infarction among European Caucasians and Chinese Han by conducting a meta-analysis. METHODS:Ten case-control studies, with data on a total of 907 cases and 966 controls, were retrieved and considered;disqualified studies were excluded. The included studies were then tested for heterogeneity, and a meta-analysis was performed. RESULTS:The combined data revealed CagA-bearing strains of H pylori which cause chronic infection are associated with an increased risk of cerebral infarction (OR = 2.66, 95% CI:2.17-3.26), but no such relationship was found with CagA-negative strains (OR = 0.74, 95% CI:0.49-1.10) in the overall population. We performed subgroup analyses, dividing the overall population into European Caucasians and Chinese Han subgroups, and analyzed the studies according to their subgroup classification. Through the subgroup analysis, an association between cerebral infarction and CagA-bearing strains was found in both subgroups (OR = 2.60, 95% CI:1.93-3.49 in Chinese Han;OR = 2.71, 95% CI:2.05-3.59 in European Caucasians), but no significant association was found between cerebral infarction and CagA-negative strains (OR = 0.81, 95% CI:0.45-1.48 in Chinese Han;OR = 0.64, 95% CI:0.37-1.09 in European Caucasians).CONCLUSION:These results suggest CagA-bearing strains of H pylori are significantly associated with susceptibility to cerebral infarction in Chinese Han and European Caucasians, but that CagA-negative strains are not a definite predisposing factor in either subgroup. The magnitude of this association with cerebral infarction needs to be confirmed by prospective studies and combined studies of H pylori eradication.Shuo Zhang Yang Guo Yan Ma Yue Teng 2008World Journal of Gastroenterology2008,14,8:12
15Exosomes derived from human amniotic epithelial cells accelerate diabetic wound healing via PI3K-AKT-mTOR-mediated promotion in angiogenesis and fibroblast function显示文摘Background:Diabetic wounds are one of the most common and serious complications of diabetes mellitus,characterized by the dysfunction of wound-healing-related cells in quantity and quality.Our previous studies revealed that human amniotic epithelial cells(hAECs)could promote diabetic wound healing by paracrine action.Interestingly,numerous studies demonstrated that exosomes derived from stem cells are the critical paracrine vehicles for stem cell therapy.However,whether exosomes derived from hAECs(hAECs-Exos)mediate the effects of hAECs on diabetic wound healing remains unclear.This study aimed to investigate the biological effects of hAECs-Exos on diabetic wound healing and preliminarily elucidate the underlying mechanism.Methods:hAECs-Exos were isolated by ultracentrifugation and identified by transmission electron microscopy,dynamic light scattering and flow cytometry.A series of in vitro functional analyses were performed to assess the regulatory effects of hAECs-Exos on human fibroblasts(HFBs)and human umbilical vein endothelial cells(HUVECs)in a high-glycemic microenvironment.Highthroughput sequencing and bioinformatics analyses were conducted to speculate the related mechanisms of actions of hAECs-Exos on HFBs and HUVECs.Subsequently,the role of the candidate signaling pathway of hAECs-Exos in regulating the function of HUVECs and HFBs,as well as in diabetic wound healing,was assessed.Results:hAECs-Exos presented a cup-or sphere-shaped morphology with a mean diameter of 105.89±10.36 nm,were positive for CD63 and TSG101 and could be internalized by HFBs and HUVECs.After that,hAECs-Exos not only significantly promoted the proliferation and migration of HFBs,but also facilitated the angiogenic activity of HUVECs in vitro.High-throughput sequencing revealed enriched miRNAs of hAECs-Exos involved in wound healing.Kyoto Encyclopedia of Genes and Genomes and Gene Ontology analyses have shown that the target genes of the top 15 miRNAs were highly enriched in the PI3K-AKT pathway.Further functional studies demonstrated that the PI3K-AKT-mTOR pathway was necessary for the induced biological effects of hAECs-Exos on HFBs and HUVECs,as well as on wound healing,in diabetic mice.Conclusions:Our findings demonstrated that hAECs-Exos represent a promising,novel strategy for diabetic wound healing by promoting angiogenesis and fibroblast function via activation of the PI3K-AKT-mTOR pathway.Pei Wei Chenjian Zhong Xiaolan Yang Futing Shu Shichu Xiao Teng Gong Pengfei Luo Li Li Zhaohong Chen Yongjun Zheng Zhaofan Xia 2020Burns & Trauma2020,8,1:12
16A Novel Hexanordammarane Glycoside from the Roots of Panax notoginseng显示文摘Notoginsenoside R10, a novel hexanordammarane glycoside was isolated from the roots of Panax nototginseng, as a minor constituent. Its structure was determined as 6-O-(?-D-glucopyranosyl)-3?,6?,12?-trihydroxy-22,23,24,25,26,27-hexanordammaran-20-one(1), by means of spectroscopic methods.Hai Zhou LI, Rong Wei TENG, Chong Ren YANG* Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204 2001Chinese Chemical Letters2001,12,1:12
17Effects of Pulsed Magnetic Field on Microsegregation of Solute Elements in a Ni-Based Single Crystal Superalloy显示文摘The effects of a pulsed magnetic field(PMF) on the microsegregation of solute elements during directional solidification of a Ni-based single crystal superalloy were experimentally investigated,and the results show that the PMF significantly affects the microsegregation of Al,Ti,Co,Mo and W elements in the alloy.However,the distribution behavior differs for both positive and negative segregation elements.With the PMF,the microsegregation of negative segregation elements,Co and W,was restrained effectively,while that of positive segregation elements,Al,Tiand Mo,was aggravated.A segregation model was established to reveal the distribution mechanism of the elements with PMF.It is considered that,under the action of PMF,the jumping of solute atoms from the liquid phase to solid phase is hindered,but the jumping of solute atoms from the solid phase into liquid phase is promoted during solidification.As a result,the effective distribution coefficient of the solute atoms is reduced,which leads to the reduction of microsegregation of negative segregation elements and aggravation of microsegregation of positive segregation elements.Yingju Li Yuefei Teng Xiaohui Feng Yuansheng Yang 2017Journal of Materials Science & Technology2017,33,1:12
18Lymph node dissection in esophageal carcinoma: Minimally invasive esophagectomy vs open surgery显示文摘AIM: To compare lymph node dissection results of minimally invasive esophagectomy(MIE) and open surgery for esophageal squamous cell carcinoma.METHODS: We retrospectively reviewed data from patients who underwent MIE or open surgery for esophageal squamous cell carcinoma from January 2011 to September 2014. Number of lymph nodes resected, positive lymph node(p N+) rate, lymph node sampling(LNS) rate and lymph node metastatic(LNM) rate were evaluated. R E S U LT S : A m o n g 4 4 7 p a t i e n t s i n c l u d e d, 1 2 3 underwent MIE and 324 underwent open surgery. The number of lymph nodes resected did not significantly differ between the MIE and open surgery groups(21.1 ± 4.3 vs 20.4 ± 3.8, respectively, P = 0.0944). The p N+ rate of stage T3 esophageal squamous cell carcinoma in the open surgery group was higher than that in the MIE group(16.3% vs 11.4%, P = 0.031), but no differences was observed for stages T1 and T2 esophageal squamous cell carcinoma. The LNS rate at left para-recurrent laryngeal nerve(RLN) site was significantly higher for open surgery than for MIE(80.2% vs 43.9%, P < 0.001), but no differences were noted at other sites. The LNM rate at left para-RLN site in the open surgery group was significantly higher than that in the MIE group, regardless of pathologic T stage. CONCLUSION: For stages T1 and T2 esophageal squamous cell carcinoma, the lymph node dissection result after MIE was comparable to that achieved by open surgery. However, the efficacy of MIE in lymphadenectomy for stage T3 esophageal squamous cell carcinoma, particularly at left para-RLN site, remains to be improved.Bo Ye Chen-Xi Zhong Yu Yang Wen-Tao Fang Teng Mao Chun-Yu Ji Zhi-Gang Li 2016World Journal of Gastroenterology2016,22,19:12
19Tissue-specific transcription reprogramming promotes liver metastasis of colorectal cancer显示文摘Metastasis,the development of secondary malignant growths at a distance from a primary tumor,is the cause of death for 90%of cancer patients,but little is known about how metastatic cancer cells adapt to and colonize new tissue environments.Here,using clinical samples,patient-derived xenograft(PDX)samples,PDX cells,and primary/metastatic cell lines,we discovered that liver metastatic colorectal cancer(CRC)cells lose their colon-specific gene transcription program yet gain a liver-specific gene transcription program.We showed that this transcription reprogramming is driven by a reshaped epigenetic landscape of both typical enhancers and super-enhancers.Further,we identified that the liver-specific transcription factors FOXA2 and HNF1A can bind to the gained enhancers and activate the liver-specific gene transcription,thereby driving CRC liver metastasis.Importantly,similar transcription reprogramming can be observed in multiple cancer types.Our data suggest that reprogrammed tissue-specific transcription promotes metastasis and should be targeted therapeutically.Shuaishuai Teng Yang Eric Li Ming Yang Rui Qi Yiming Huang Qianyu Wang Yanmei Zhang Shanwen Chen Shasha Li Kequan Lin Yang Cao Qunsheng Ji Qingyang Gu Yujing Cheng Zai Chang Wei Guo Pengyuan Wang Ivan Garcia-Bassets Zhi John Lu Dong Wang 2020Cell Research2020,30,1:11
20The enhanced X-ray Timing and Polarimetry mission—eXTP显示文摘In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the dynamics of matter in strong-field gravity. In addition to investigating fundamental physics, eXTP will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects. In particular, its wide field monitoring capabilities will be highly instrumental to detect the electro-magnetic counterparts of gravitational wave sources.The paper provides a detailed description of:(1) the technological and technical aspects, and the expected performance of the instruments of the scientific payload;(2) the elements and functions of the mission, from the spacecraft to the ground segment.ShuangNan Zhang Andrea Santangelo Marco Feroci YuPeng Xu FangJun Lu Yong Chen Hua Feng Shu Zhang Sφren Brandt Margarita Hernanz Luca Baldini Enrico Bozzo Riccardo Campana Alessandra De Rosa YongWei Dong Yuri Evangelista Vladimir Karas Norbert Meidinger Aline Meuris Kirpal Nandra Teng Pan Giovanni Pareschi Piotr Orleanski QiuShi Huang Stephane Schanne Giorgia Sironi Daniele Spiga Jiri Svoboda Gianpiero Tagliaferri Christoph Tenzer Andrea Vacchi Silvia Zane Dave Walton ZhanShan Wang Berend Winter Xin Wu Jean J.M.in't Zand Mahdi Ahangarianabhari Giovanni Ambrosi Filippo Ambrosino Marco Barbera Stefano Basso Jörg Bayer Ronaldo Bellazzini Pierluigi Bellutti Bruna Bertucci Giuseppe Bertuccio Giacomo Borghi XueLei Cao Franck Cadoux Francesco Ceraudo TianXiang Chen Yu Peng Chen Jerome Chevenez Marta Civitani Wei Cui WeiWei Cui Thomas Dauser Ettore Del Monte Sergio Di Cosimo Sebastian Diebold Victor Doroshenko Michal Dovciak YuanYuan Du Lorenzo Ducci QingMei Fan Yannick Favre Fabio Fuschino JoséLuis Ga'lvez Min Gao MingYu Ge Olivier Gevin Marco Grassi QuanYing Gu YuDong Gu DaWei Han Bin Hong Wei Hu Long Ji ShuMei Jia WeiChun Jiang Thomas Kennedy Ingo Kreykenbohm Irfan Kuvvetli Claudio Labanti Luca Latronico Gang Li MaoShun Li Xian Li Wei Li ZhengWei Li Olivier Limousin HongWei Liu XiaoJing Liu Bo Lu Tao Luo Daniele Macera Piero Malcovati Adrian Martindale Malgorzata Michalska Bin Meng Massimo Minuti Alfredo Morbidini Fabio Muleri Stephane Paltani Emanuele Perinati Antonino Picciotto Claudio Piemonte JinLu Qu Alexandre Rachevski Irina Rashevskaya Jerome Rodriguez Thomas Schanz ZhengXiang Shen LiZhi Sheng JiangBo Song LiMing Song Carmelo Sgro Liang Sun Ying Tan Phil Uttley Bo Wang DianLong Wang GuoFeng Wang Juan Wang LangPing Wang YuSa Wang Anna L.Watts XiangYang Wen Jörn Wilms ShaoLin Xiong JiaWei Yang Sheng Yang YanJi Yang Nian Yu WenDa Zhang Gianluigi Zampa Nicola Zampa Andrzej A.Zdziarski AiMei Zhang ChengMo Zhang Fan Zhang Long Zhang Tong Zhang Yi Zhang XiaoLi Zhang ZiLiang Zhang BaoSheng Zhao ShiJie Zheng Yu Peng Zhou Nicola Zorzi J.Frans Zwart 2019Science China(Physics,Mechanics & Astronomy)2019,62,2:11
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