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131篇 您的检索式:作者名="Shuang Shen"
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1ECharts: A declarative framework for rapid construction of web-based visualization显示文摘While there have been a dozen of authoring systems and programming toolkits for visual design and development,users who do not have programming skills,such as data analysts or interface designers,still may feel cumbersome to efficiently implement a web-based visualization.In this paper,we present ECharts,an open-sourced,web-based,cross-platform framework that supports the rapid construction of interactive visualization.The motivation is driven by three goals:easy-touse,rich built-in interactions,and high performance.The kernel of ECharts is a suite of declarative visual design language that customizes built-in chart types.The underlying streaming architecture,together with a high-performance graphics renderer based on HTML5 canvas,enables the high expandability and performance of ECharts.We report the design,implementation,and applications of ECharts with a diverse variety of examples.We compare the utility and performance of ECharts with C3.js,HighCharts,and Chart.js.Results of the experiments demonstrate the efficiency and scalability of our framework.Since the first release in June 2013,ECharts has iterated 63 versions,and attracted over 22,000 star counts and over 1700 related projects in the GitHub.ECharts is regarded as a leading visualization development tool in the world,and ranks the third in the GitHub visualization tab.Deqing Li Honghui Mei Yi Shen Shuang Su Wenli Zhang Junting Wang Ming Zu Wei Chen 2018Visual Informatics2018,2,2:69
2Clinical analysis and follow-up study of chronic active Epstein-Barr virus infection in 53 pediatric cases显示文摘背景长期的活跃 Epstein-Barr 病毒感染(CAEBV ) 以前被报导了有时与一堂好攻击的临床的功课被联系。在大陆中国小儿科的病人的 CAEBV 的特征大部分是 unreported。这调查的主要目的是在孩子认出 CAEBV 的临床的特征并且探索它的诊断标准和风险 factors.Methods A 回顾的学习与 CAEBV 在 53 个小儿科的病人(36 个男孩和 17 个女孩) 上被执行进入北京孩子在 2003 和 2007 之间的医院。所有他们的医药记录被考察并且分析。为每个病人,人口统计,临床,实验室数据和结果被收集。独立样品的 t 测试被用于在 CAEBV 的发作的年龄从 2 个月到 14.6 年的统计 analysis.Results (平均数(5.LU Gen XIE Zheng-de ZHAO Shun-ying YE Ling-jun WU Run-hui LIU Chun-yan YANG Shuang JIN Ying-kang SHEN Kun-ling 2009Chinese Medical Journal2009,,3:36
3Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis: a retrospective study of 78 pediatric cases in mainland of China显示文摘背景 Epstein-Barr 联系病毒的 hemophagocytic lymphohistiocytosis (EBV-HLH ) 的临床的特征大部分是在在中国的大陆的小儿科的病人的 unreported。这研究的主要目的是在孩子认出 EBV-HLH 的临床的特征并且探索它的预后和风险 factors.Methods A 回顾的学习与 EBV-HLH 在 78 个小儿科的病人上被执行进入北京孩子在 2003 和 2008 之间的医院。所有病人的医药记录被考察并且分析。为每个病人,人口统计,临床,实验室和结果信息被收集。统计分析经由 multivariate 和 univariate analysis.Results 被进行发作的年龄在 1-2 年之间达到顶点,男孩们是更多半发达的 EBV-HLH。EBV-HLH 与 EBV 原子抗原(EBNA ) 主要在血清学的模式发生了积极(70.5%) 。疾病的全面命运是 56.7% 。39 死亡(30.8%) 中的 12 个在诊断以后在 2 个月以内很快死了。 Multivariate 分析揭示了那不收到化疗( P=0.002 ), 4 星期在诊断( P=0.004 )以前的病,并且白朊铺平< 20 g/L ( P=0.045 )显著地预言增加的命运 risk.Conclusions EBV-HLH 是有与 EBNA 主要在血清学的模式发生的高命运率的严重疾病积极。化疗和及时诊断的早开始显著地改进幸存率。实际策略应该集中于减少早死亡的可能性的。JIN Ying-kang XIE Zheng-de YANG Shuang LU Gen SHEN Kun-ling 2010Chinese Medical Journal2010,,11:30
4Chronic blocking of β_3-adrenoceptor ameliorates cardiac function in rat model of heart failure显示文摘Background Stimulation of the heart β_3-adrenoceptor(AR)may result in a negative inotropic effect.Being up-regulated,β_3-AR plays a more important role in the regulation of cardiac function during heart failure.However,the effect of chronicblocking of β_3-AR on heart failure has not been fully elucidated.In this study,we used a selective β_3-AR antagonistSR59230A to treat a well defined heart failure rat model chronically,then evaluated its effect on cardiac function andinvestigated the mechanism.Methods Male Wistar rats were chosen randomly as controls(n=8).Isoproterenol induced heart failure rats wererandomly divided into ISO group(n=10)and SR group(n=10).The ISO group received intraperitoneal injection of 1 mlsaline twice a day;the SR group received intraperitoneal injection of SR59230A 85 nmol in 1 ml saline twice a day;and the control group received no treatment.The treatment was started 24 hours after the last isoproterenol injectionand continued for 7 weeks.Then we measured the following indexes:the ratio of heart weight to body weight(HW/BW)and the ratio of left ventricular weight to body weight(LVW/BW),collagen volume fraction(CVF),left ventricular enddiastolic dimension(LVEDd),left ventricular end systolic dimension(LVESd),ejection fraction(EF),fractionalshortening(FS)and the ratio of E wave to A wave(E/A),the mRNA and protein expression of β_3-AR and eNOS,andcGMP level in the heart.Results The ratios HW/BW and LVW/BW were significantly increased in the ISO group compared with the controlgroup(P<0.01),but they were limited in the SR group(P<0.05 compared with the ISO group).CVF increased in the ISOgroup and the SR group(P<0.01),but it was significantly attenuated in the SR group(P<0.01).LVEDd,LVESd and E/Aratio were significantly increased in the ISO group compared with the control group(P<0.01),while EF and FS weresignificantly decreased(P<0.01).Compared with the ISO group,the SR group showed that LVEDd,LVESd and E/A ratiowere significantly decreased(P<0.01),whereas EF and FS were significantly increased(P<0.01).β_3-AR and eNOSmRNA and protein in the ISO group were significantly increased when compared with the control group(P<0.01).Theseincreases were all attenuated in the SR group compared with the ISO group(P<0.01).The level of cGMP in myocardialtissue was significantly increased in the ISO group compared with the control group(P<0.01),whereas SR59230Atreatment normalized this increment(P<0.01).Conclusions Chronic blocking of β_3-AR could ameliorate cardiac function in heart failure rats and its mechanisminvolves inhibition of the negative inotropic effect and attenuation of cardiac remodeling.GAN Run-tao LI Wei-min XIU Chun-hong SHEN Jing-xia WANG Xu WU Shuang KONG Yi-hui 2007Chinese Medical Journal2007,,24:22
5Current status of diagnosis and treatment of bladder cancer in China-Analyses of Chinese Bladder Cancer Consortium database显示文摘Objective:To investigate current status of diagnosis and treatment of bladder cancer in China.Methods:A database was generated by Chinese Bladder Cancer Consortium(CBCC).From January 2007 to December 2012,14,260 cases from 44 CBCC centers were included.Data of diagnosis,treatment and pathology were collected.Results:The average age was 63.5 year-old and most patients were male(84.3%).The most common histologic types were urothelial carcinoma(91.4%),adenocarcinoma(1.8%),and squamous carcinoma(1.9%).According to 1973 and 2004 WHO grading system,42.0%,41.0%,and 17.0% of patients were grade 1,2,and 3,and 16.0%,48.7%,and 35.3% of patients were papillary urothelial neoplasms of low malignant potential,low,and high grade,respectively.Non-muscle invasive bladder cancer(NMIBC)and muscle invasive bladder cancer(MIBC)were 25.2% and 74.1%,respectively(0.8% not clear).Carcinoma in situ was only 2.4%.Most patients were diagnosed by white-light cystoscopy with biopsy(74.3%).Fluorescence and narrow band imaging cystoscopy had additional detection rate of 1.0% and 4.0%,respectively.Diagnostic transurethral resection(TUR)provided detection rate of 16.9%.Most NMIBCs were treated with TUR(89.2%).After initial TUR,2.6%accepted second TUR,and 45.7%,69.9%,and 58.7% accepted immediate,induced,and maintenance chemotherapy instillation,respectively.Most MIBCs were treated with radical cystectomy(RC,59.7%).Laparoscopic RCs were 35.1%,while open RC 63.4%.Extended and standard pelvic lymph node dissection were 7% and 66%,respectively.Three most common urinary diversions were orthotopic neobladder(44%),ileal conduit(31%),and ureterocutaneostomy(23%).Only 2.3% of patients accepted neo-adjuvant chemotherapy and only 18%of T3 and T4 patients accepted adjuvant chemotherapy.Conclusion:Disease characteristics are similar to international reports,while differences of diagnosis and treatment exist.This study can provide evidences for revisions of the guideline on bladder cancer in China.Kaiwen Li Tianxin Lin Wei Xue Xin Mu Enci Xu Xu Yang Fubao Chen Guangyong Li Lulin Ma Guoliang Wang Chaozhao Liang Haoqiang Shi Ming Li Mao Tang Xueyi Xue Yisong Lv Yaoliang Deng Chengyang Li Zhiwen Chen Xiaozhou Zhou Fengshuo Jin Xudong Liu Jinxin Wei Lei Shi Xin Gou Weiyang He Liqun Zhou Lin Cai Baiye Jin Guanghou Fu Xiangbo Kong Hongyan Sun Ye Tian Lang Feng Tiejun Pan Yiyi Wu Dongwen Wang Hailong Hao Benkang Shi Yaofeng Zhu Qiang Wei Ping Han Changli Wu Dawei Tian Zhangqun Ye Zheng Liu Zhiping Wang Junqiang Tian Lin Qi Minfeng Chen Wei Li Jinchun Qi Gongxian Wang Longlong Fu Zhaolin Sun Guangheng Luo Zhoujun Shen Zhaowei Zhu Jinchun Xing Zhun Wu Dong Wei Xin Chen Yanqun Na Hongfeng Guo Chunxi Wang Zhihua Lu Chuize Kong Yang Liu Jin Yang Jianyun Hu Xin Gao Jielin Li Changjun Yin Pu Li Shan Chen Zhen Du Jiongming Li Yongji Yan Xu Zhang Shuang Huang Fangjian Zhou Zhiling Zhang Yinghao Sun Shuxiong Zeng Song Cen Jiaquan Zhou Hanzhong Li Jin Wen Jian Huang 2015Asian Journal of Urology2015,2,2:21
6Precise nanomedicine for intelligent therapy of cancer显示文摘Precise nanomedicine has been extensively explored for efficient cancer imaging and targeted cancer therapy, as evidenced by a few breakthroughs in their preclinical and clinical explorations. Here, we demonstrate the recent advances of intelligent cancer nanomedicine, and discuss the comprehensive understanding of their structure-function relationship for smart and efficient cancer nanomedicine including various imaging and therapeutic applications, as well as nanotoxicity. In particular, a few emerging strategies that have advanced cancer nanomedicine are also highlighted as the emerging focus such as tumor imprisonment, supramolecular chemotherapy, and DNA nanorobot. The challenge and outlook of some scientific and engineering issues are also discussed in future development. We wish to highlight these new progress of precise nanomedicine with the ultimate goal to inspire more successful explorations of intelligent nanoparticles for future clinical translations.Huabing Chen Zhanjun Gu Hongwei An Chunying Chen Jie Chen Ran Cui Siqin Chen Weihai Chen Xuesi Chen Xiaoyuan Chen Zhuo Chen Baoquan Ding Qian Dong Qin Fan Ting Fu Dayong Hou Qiao Jiang Hengte Ke Xiqun Jiang Gang Liu Suping Li Tianyu Li Zhuang Liu Guangjun Nie Muhammad Ovais Daiwen Pang Nasha Qiu Youqing Shen Huayu Tian Chao Wang Hao Wang Ziqi Wang Huaping Xu Jiang-Fei Xu Xiangliang Yang Shuang Zhu Xianchuang Zheng Xianzheng Zhang Yanbing Zhao Weihong Tan Xi Zhang Yuliang Zhao 2018Science China Chemistry2018,61,12:19
7Spatial Interpolation of Soil Texture Using Compositional Kriging and Regression Kriging with Consideration of the Characteristics of Compositional Data and Environment Variables显示文摘The spatial interpolation for soil texture does not necessarily satisfy the constant sum and nonnegativity constraints. Meanwhile, although numeric and categorical variables have been used as auxiliary variables to improve prediction accuracy of soil attributes such as soil organic matter, they (especially the categorical variables) are rarely used in spatial prediction of soil texture. The objective of our study was to comparing the performance of the methods for spatial prediction of soil texture with consideration of the characteristics of compositional data and auxiliary variables. These methods include the ordinary kriging with the symmetry logratio transform, regression kriging with the symmetry logratio transform, and compositional kriging (CK) approaches. The root mean squared error (RMSE), the relative improvement value of RMSE and Aitchison's distance (D_A) were all utilized to assess the accuracy of prediction and the mean squared deviation ratio was used to evaluate the goodness of fit of the theoretical estimate of error. The results showed that the prediction methods utilized in this paper could enable interpolation results of soil texture to satisfy the constant sum and nonnegativity constraints. Prediction accuracy and model fitting effect of the CK approach were better, suggesting that the CK method was more appropriate for predicting soil texture. The CK method is directly interpolated on soil texture, which ensures that it is optimal unbiased estimator. If the environment variables are appropriately selected as auxiliary variables, spatial variability of soil texture can be predicted reasonably and accordingly the predicted results will be satisfied.ZHANG Shi-wen SHEN Chong-yang CHEN Xiao-yang YE Hui-chun HUANG Yuan-fang LAI Shuang 2013Journal of Integrative Agriculture2013,12,9:17
8Mutations in the perforin gene in children with hemophagocytic lymphohistiocytosis显示文摘LU Gen XIE Zheng-de SHEN Kun-ling YE Ling-jun WU Run-hui LIU Chun-yan JIN Ying-kang YANG Shuang 2009Chinese Medical Journal2009,,23:16
9miR-223 and miR-142 attenuate hematopoietic cell proliferation, and miR-223 positively regulates miR-142 through LMO2 isoforms and CEBP-β显示文摘miR-142 和 miR-223 作为造血的特定的 microRNAs 被识别了。miR-223 在 myeloid 系开发有关键功能。然而, miR-142 的功能仍然保持不清楚。在这研究,我们发现那 miR-142, miR-223 稀释了造血的房间,和那 miR-223 的增长通过 LMO2-L/-S isoforms 和 CEBP- 尾的起来调整的 miR-142 表示。miR-223 否定地 post-transcriptionally 调整了 LMO2-L/-S isoforms 和 CEBP- 尾,当 CEBP- 尾断然调整了 LMO2-L/-S isoforms 并且否定地两个都 LMO2-L/-S isoforms 调整了 miR-142 时。这些结果揭示一条新奇 miR-223 鈥擟E BP-尾鈥擫M O2 鈥攎i R-142 规章的小径,它在造血作用有枢轴的功能。Wei Sun Wenwen Shen Shuang Yang Fen Hu Huihui Li Tian-Hui Zhu 2010Cell Research2010,20,10:12
10Protective effects of extracts of Schisandra chinensis stems against acetaminophen-induced hepatotoxicity via regulation of MAPK and caspase-3 signaling pathways显示文摘The present study was designed to evaluate protective activity of an ethanol extract of the stems of Schisandra chinensis(SCE) and explore its possible molecular mechanisms on acetaminophen(APAP) induced hepatotoxicity in a mouse model. The results of HPLC analysis showed that the main components of SCE included schisandrol A, schisandrol B, deoxyschisandrin, schisan--drin B, and schisandrin C and their contents were 5.83, 7.11, 2.13, 4.86, 0.42 mg·g^(-1), respectively. SCE extract was given for 7 con--secutive days before a single hepatotoxic dose of APAP(250 mg·kg^(-1)) was injected to mice. Our results showed that SCE pretreatment ameliorated liver dysfunction and oxidative stress, which was evidenced by significant decreases in aspartate transaminase(AST), alanine aminotransferase(ALT), malondialdehyde(MDA) contents and elevations in reduced glutathione(GSH) and superoxide dismutase(SOD) levels. These findings were associated with the result that the SCE pretreatment significantly decreased expression levels of 4-hydroxynonenal(4-HNE) and 3-nitrotyrosine(3-NT). SCE also significantly decreased the expression levels of Bax, mitogen-activated protein kinase(MAPK), and cleaved caspase-3 by APAP exposure. Furthermore, supplementation with SCE suppressed the expression levels of inducible nitric oxide synthase(iNOS) and cyclooxygenase-2(COX-2), suggesting alleviation of inflammatory response. In summary, these findings from the present study clearly demonstrated that SCE exerted significant alleviation in APAP-induced oxidative stress, inflammation and apoptosis mainly via regulating MAPK and caspase-3 signaling pathways.LI Yan-Zi Ma Zhi-Na SUN Yin-Shi REN Shen JIANG Shuang ZHANG Wei-Zhe WANG Zi LI Wei 2018Chinese Journal of Natural Medicines2018,16,9:10
11Atorvastatin activates autophagy and promotes neurological function recovery after spinal cord injury显示文摘Atorvastatin, a lipid-lowering medication, provides neuroprotective effects, although the precise mechanisms of action remain unclear. Our previous studies confirmed activated autophagy following spinal cord injury, which was conducive to recovery of neurological functions. We hypothesized that atorvastatin could also activate autophagy after spinal cord injury, and subsequently improve recovery of neurological functions. A rat model of spinal cord injury was established based on the Allen method. Atorvastatin(5 mg/kg) was intraperitoneally injected at 1 and 2 days after spinal cord injury. At 7 days post-injury, western blot assay, reverse transcription-polymerase chain reaction, and terminal deoxynucleotidyl transferase-mediated dU TP nick-end labeling(TUNEL) staining results showed increased Beclin-1 and light chain 3B gene and protein expressions in the spinal cord injury + atorvastatin group. Additionally, caspase-9 and caspase-3 expression was decreased, and the number of TUNEL-positive cells was reduced. Compared with the spinal cord injury + saline group, Basso, Beattie, and Bresnahan locomotor rating scale scores significantly increased in the spinal cord injury + atorvastatin group at 14–42 days post-injury. These findings suggest that atorvastatin activated autophagy after spinal cord injury, inhibited apoptosis, and promoted recovery of neurological function.Shuang Gao Zhong-ming Zhang Zhao-liang Shen Kai Gao Liang Chang Yue Guo Zhuo Li Wei Wang Ai-mei Wang 2016Neural Regeneration Research2016,11,6:9
12Simultaneous removal of selected oxidized contaminants in groundwater using a continuously stirred hydrogen-based membrane biofilm reactor显示文摘A laboratory trial was conducted for evaluating the capability of a continuously stirred hydrogen-based membrane biofilm reactor to simultaneously reduce nitrate (NO3--N), sulfate (SO42-), bromate (BrO3-), hexavalent chromium (Cr(VI)) and para- chloronitrobenzene (p-CNB). The reactor contained two bundles of hollow fiber membranes functioning as an autotrophic biofilm carrier and hydrogen pipe as well. On the condition that hydrogen was supplied as electron donor and diffused into water through membrane pores, autohydrogenotrophic bacteria were capable of reducing contaminants to forms with lower toxicity. Reduction occurred within 1 day and removal fluxes for NO3--N, SO4-2 , BrO3-, Cr(VI), and p-CNB reached 0.641, 2.396, 0.008, 0.016 and 0.031 g/(day·m-2 ), respectively after 112 days of continuous operation. Except for the fact that sulfate was 37% removed under high surface loading, the other four contaminants were reduced by over 95%. The removal flux comparison between phases varying in surface loading and H2 pressure showed that decreasing surface loading or increasing H2 pressure would promote removal flux. Competition for electrons occurred among the five contaminants. Electron-equivalent flux analysis showed that the amount of utilized hydrogen was mainly controlled by NO3 -N and SO4-2 reduction, which accounted for over 99% of the electron flux altogether. It also indicated the electron acceptor order, showing that nitrate was the most prior electron acceptor while sulfate was the second of the five contaminants.Siqing Xia Jun Liang Xiaoyin Xu Shuang Shen 2013Journal of Environmental Sciences2013,25,1:8
13Silicon-based four-mode division multiplexing for chip-scale optical data transmission in the 2 μm waveband显示文摘Based on a silicon platform, we design and fabricate a four-mode division(de)multiplexer for chip-scale optical data transmission in the 2 μm waveband for the first time, to the best of our knowledge. The(de)multiplexer is composed of three tapered directional couplers for both mode multiplexing and demultiplexing processes. In the experiment, the average crosstalk for four channels is measured to be less than-18 dB over a wide wavelength range(70 nm) from 1950 to 2020 nm, and the insertion losses are also assessed. Moreover, we further demonstrate stable 5 Gbit/s direct modulation data transmission through the fabricated silicon photonic devices with nonreturn-to-zero on–off keying signals. The experimental results show clear eye diagrams, and the penalties at a bit error rate of 3.8 × 10-3 are all less than 2.5 dB after on-chip data transmission. The obtained results indicate that the presented silicon four-mode division multiplexer in the mid-infrared wavelength band might be a promising candidate facilitating chip-scale high-speed optical interconnects.SHUANG ZHENG MENG HUANG XIAOPING CAO LULU WANG ZHENGSEN RUAN LI SHEN JIAN WANG 2019Photonics Research2019,7,9:7
14Enhanced struvite recovery from wastewater using a novel cone-inserted fluidized bed reactor显示文摘The feasibility of struvite recovery at low(12.5 mg/L) and high(120 mg/L) phosphorus concentrations was studied by constructing a novel fluidized bed reactor with cones(FBRwc) and without cones(FBRwoc). The crystallization process was continuously operated for 133 days under different hydraulic retention times(HRT = 1–10 hr), pH(7.5–10), and molar ratios of Mg/P(0.75–1.75), N/P(1–10) and Ca/Mg(0–2). The optimum operating conditions of HRT, pH, Mg/P and N/P molar ratios were found to be 2 hr, 9, 1.25, and 7.5, respectively. Under these optimum conditions, the phosphorus precipitation efficiencies of FBRwcwere 93% for low and 98% for high phosphorus influent; however, the efficiencies were 78% and 81% for FBRwoc, respectively. Due to crystal losses at each junction(17%–31%), the crystal recovery efficiency of FBRwocwas relatively low(47%–65%) for both influent concentrations. However, the losses were minimal in FBRwc, which showed 75% and 92% crystal recovery for low and high phosphorus concentrations, respectively. At low calcium concentration, crystal chemical analysis showed the product to be pure struvite(> 99%). The scanning electron microscope and X-ray diffraction results further confirmed that the crystal recovered from FBRwc contained pure struvite, which could be considered a high quality fertilizer. Except HRT, all parameters(pH, Mg/P, N/P and Ca/Mg) were found to be influencing factors for FBRwcperformance. Overall, inserting cones in each part of the reactor played a significant role in enhancing struvite recovery from a wide range of phosphorus-containing wastewater.Awoke Guadie Siqing Xia Wei Jiang Lijie Zhou Zhiqiang Zhang Slawomir W.Hermanowicz Xiaoyin Xu Shuang Shen 2014Journal of Environmental Sciences2014,26,4:6
15New guaiane-type sesquiterpenoid dimers from Artemisia atrovirens and their antihepatoma activity显示文摘Leading by cytotoxicity against HepG2 cells,bioactivity-guided fractionation of the EtOAc fraction from Artemisia atrovirens led to the isolation of 18 new guaianolide dimers,artematrolides A-R and lavandiolides A,B,C,H,and J.Eight compounds(1,4,10,12,13,and 19-21) were unambiguously confirmed by the single-crystal X-ray diffraction analyses,and the others were elucidated based on IR,UV,HRESIMS,1 D and 2 D NMR experiments,and comparison of the experimental and calculated ECD data.Structurally,all of them were [4+2] Diels-Alder adducts of two monomeric guaianolides.The isolates were evaluated for their cytotoxicity against three human hepatoma cell lines,and 19 compounds demonstrated cytotoxicity against HepG2,SMMC-7721,and Huh7 cell lines.Especially,compounds 1,12,14,and 15 exhibited cytotoxicity with IC50 values of 4.4,3.8,7.6,and 6.7 μmol/L(HepG2),9.6,4.6,6.6,and 6.0 μmol/L(SMMC-7721),and 7.6,4.5,6.9,and 5.6 μmol/L(Huh7),respectively.Notably,compound 12 showed the most promising activity against three human hepatoma cell lines and dose-dependently inhibited cell migration and invasion,induced G2/M cell cycle arrest and cell apoptosis in HepG2 cells,down-regulated the expression of BCL-2 and PARP-1,and activated PARP-1 to up-regulate the expression of cleaved-PARP-1.Lihua Su Xintian Zhang Yunbao Ma Changan Geng Xiaoyan Huang Jing Hu Tianze Li Shuang Tang Cheng Shen Zhen Gao Xuemei Zhang Ji-Jun Chen 2021Acta Pharmaceutica Sinica B2021,11,6:6
16A new flavonoid from Selaginella tamariscina显示文摘6-(2-Hydroxy-5-acetylphenyl )-apigenin (1 ) ,有一个苯基取代者的新 flavonoid,首先从 Selaginella tamariscina 被孤立。它的结构象 ESI-HR-MS 分光镜的分析一样根据 1D 和 2D NMR 被阐明。Jian Feng Liu Kang Ping Xu De Jian Jiang Fu Shuang Li Jian Shen Ying Jun Zhou Ping Sheng Xu Bin Tan Gui Shan Tan 2009Chinese Chemical Letters2009,20,5:5
17Effect of emodin on mobility signal transduction system of gallbladder smooth muscle in Guinea pig with cholelithiasis显示文摘Objective: To study the effect of emodin on protein and gene expressions of the massagers in mobility signal transduction system of cholecyst smooth muscle cells in guinea pig with cholesterol calculus. Methods: The guinea pigs were randomly divided into 4 groups, such as control group, gall-stone(GS) group, emodin group and ursodesoxycholic acid(UA) group. Cholesterol calculus models were induced in guinea pigs of GS, emodin and UA groups of induced models by lithogenic diet, while emodin or UA were given to the corresponding group for 7 weeks. The histomorphological and ultrastructure change of gallbladder were detected by microscope and electron microscope, the content of plasma cholecystokinin(CCK) and [Ca^(2+)]i were analyzed successively by radioimmunoassay and flow cytometry. The protein and mR NA of Gsα, Giα and Cap in cholecyst cells were determined by western blotting and real time polymerase chain reaction(RT-PCR). Results: Emodin or UA can relieve pathogenic changes in epithelial cells and muscle cells in gallbladder of guinea pig with cholesterol calculus by microscope and transmission electron microscope. In the cholecyst cells of GS group, CCK levels in plasma and [Ca^(2+)]i decreased, the protein and m RNA of GS group were downregulated,the protein and m RNA of Gi and Cap were up-regulated. Emodin significantly decreased the formative rate of gallstone, improved the pathogenic change in epithelial cells and muscle cells, increased CCK levels in plasma and [Ca^(2+)]i in cholecyst cells, enhanced the protein and mR NA of Gs in cholecyst cells, reduced the protein and mR NA of Gi and Cap in cholecyst cells in guinea pig with cholesterol calculus. Conclusion: The dysfunction of gallbladder contraction gives rise to the disorders of mobility signal transduction system in cholecyst smooth muscle cells, including low content of plasma CCK and [Ca^(2+)]i in cholecyst cells, abnormal protein and mRNA of Gs, Gi and Cap. Emodin can enhance the contractibility of gallbladder and alleviate cholestasis by regulating plasma CCK levels, [Ca2+]i in cholecyst cells and the protein and mR NA of Gs, Gi and Cap.Bang-Jiang Fang Jun-Yi Shen Hua Zhang Chuan-Zhu Lyu Yi-Qiang Xie Shuang Zhou 2016Asian Pacific Journal of Tropical Medicine2016,9,10:5
18Patient-derived non-small cell lung cancer xenograft mirrors complex tumor heterogeneity显示文摘Objective:Patient-derived xenograft(PDX)models have shown great promise in preclinical and translational applications,but their consistency with primary tumors in phenotypic,genetic,and pharmacodynamic heterogeneity has not been well-studied.This study aimed to establish a PDX repository for non-small cell lung cancer(NSCLC)and to further elucidate whether it could preserve the heterogeneity within and between tumors in patients.Methods:A total of 75 surgically resected NSCLC specimens were implanted into immunodeficient NOD/SCID mice.Based on the successful establishment of the NSCLC PDX model,we compared the expressions of vimentin,Ki67,EGFR,and PD-L1 proteins between cancer tissues and PDX models using hematoxylin and eosin staining and immunohistochemical staining.In addition,we detected whole gene expression profiling between primary tumors and PDX generations.We also performed whole exome sequencing(WES)analysis in 17 first generation xenografts to further assess whether PDXs retained the patient heterogeneities.Finally,paclitaxel,cisplatin,doxorubicin,atezolizumab,afatininb,and AZD4547 were used to evaluate the responses of PDX models to the standard-of-care agents.Results:A large collection of serially transplantable PDX models for NSCLC were successfully developed.The histology and pathological immunohistochemistry of PDX xenografts were consistent with the patients’tumor samples.WES and RNA-seq further confirmed that PDX accurately replicated the molecular heterogeneities of primary tumors.Similar to clinical patients,PDX models responded differentially to the standard-of-care treatment,including chemo-,targeted-and immuno-therapeutics.Conclusions:Our established PDX models of NSCLC faithfully reproduced the molecular,histopathological,and therapeutic characteristics,as well as the corresponding tumor heterogeneities,which provides a clinically relevant platform for drug screening,biomarker discovery,and translational research.Xuanming Chen Cheng Shen Zhe Wei Rui Zhang Yongsheng Wang Lili Jiang Ke Chen Shuang Qiu Yuanli Zhang Ting Zhang Bin Chen Yanjun Xu Qiyi Feng Jinxing Huang Zhihui Zhong Hongxia Li Guowei Che Kai Xiao 2021Cancer Biology & Medicine2021,18,1:5
19Arsenic removal from groundwater by acclimated sludge under autohydrogenotrophic conditions显示文摘Arsenic in the environment is attracting increasing attention due to its chronic health effects. Although arsenite(As(III)) is generally more mobile and more toxic than arsenate(As(V)), reducing As(V) to As(III) may still be a means for decontamination, because As(III) can be removed from solution by precipitation with sulfide or by adsorption or complexation with other metal sulfides. The performance of As(V) bio-reduction under autohydrogenotrophic conditions was investigated with batch experiments. The results showed that As(V) reduction was a biochemical process while both acclimated sludge and hydrogen were essential. Most of the reduced arsenic remained in a soluble form, although 20% was removed with no addition of sulfate, while 82% was removed when sulfate was reduced to sulfide. The results demonstrated that the reduced arsenic was re-sequestered in the precipitates, probably as arsenic sulfides. Kinetic analysis showed that pseudo first-order kinetics described the bio-reduction process better than pseudo second-order. In particular, the influences of pH and temperature on As(V) reduction by acclimated sludge under autohydrogenotrophic conditions and total soluble As removal were examined. The reduction process was highly sensitive to both pH and temperature, with the optimum ranges of pH 6.5–7.0 and 30–40°C respectively. Furthermore, Arrhenius modeling results for the temperature effect indicated that the As(V) reduction trend was systematic. Total soluble As removal was consistent with the trend of As(V) reduction.Siqing Xia Shuang Shen Xiaoyin Xu Jun Liang Lijie Zhou 2014Journal of Environmental Sciences2014,26,2:5
20The First Outbreak of Omicron Subvariant BA.5.2—Beijing Municipality,China,July 4,2022显示文摘On July 4,2022,the first case of Omicron subvariant BA.5.2 in Beijing Municipality was discovered in Yanqing District.The case was a 49-yearold Chinese male who had arrived in Shanghai Municipality via international flight DL9927 from North Carolina,U.S.on June 15.He stayed in a hotel for the 14-day arrival quarantine and was discharged on June 30.He arrived in Beijing via domestic flight MU5103 on July 1 and was transferred point-to-point from the airport to his residence community in Yanqing District.On July 3,his sample was collected through community mass screening and reported positive in the next morning.The case had received 3 doses of Moderna’s mRNA vaccines in the U.S.,with the last shot on May 26,2022.Zhaomin Feng Ying Shen Shuang Li Jia Li Shaohua Wang Zhenquan Zhang Yunkui Shen Fu Li Yang Pan Quanyi Wang Da Huo 2022China CDC weekly2022,4,30:4
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