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1Prognostic factors of refractory NSCLC patients receiving anlotinib hydrochloride as the third-or further-line treatment显示文摘Objective:Anlotinib hydrochloride is a multitarget tyrosine kinase inhibitor that targets vascular endothelial growth factor receptor,fibroblast growth factor receptor,platelet-derived growth factor receptor,c-Kit,and c-MET;therefore,it exhibits both antitumor and anti-angiogenetic activities.A phase III trial has shown that anlotinib improved progression-free survival(PFS)and overall survival(OS)in patients with advanced non-small cell lung cancer(NSCLC),who presented with progressive disease or intolerance after standard chemotherapy.This study aimed to analyze the characteristics of patients receiving anlotinib treatment to determine the dominant populations who are fit for the treatment.Methods:Data were collected from March 2015 to January 2017 from a randomized,double-blind,placebo-controlled,multicenter,phase III trial of anlotinib(ALTER0303).A total of 437 patients were enrolled and randomly allocated(2:1)to the anlotinib and placebo groups.Kaplan–Meier analysis and log-rank test were performed to compare PFS and OS.Cox proportional hazards model was adopted for multivariate prognostic analysis.Results:Multivariate analysis indicated that high post-therapeutic peripheral blood granulocyte/lymphocyte ratio and elevated alkaline phosphatase levels were independent risk factors for PFS.Meanwhile,elevated thyroid-stimulating hormone,blood glucose,and triglyceride levels;hypertension;and hand–foot syndrome were independent protective factors of PFS.High posttherapeutic peripheral blood granulocyte/lymphocyte ratio,an Eastern Cooperative Oncology Group(ECOG)score≥2,and the sum of the maximal target lesion length at baseline were independent risk factors of OS,and hypertriglyceridemia was an independent protective factor of OS.Conclusions:This study preliminarily explored the possible factors that affected PFS and OS after anlotinib treatment in patients with advanced refractory NSCLC,and the baseline characteristics of the therapeutically dominant populations were then identified.Jing Wang Yizhuo Zhao Qiming Wang Li Zhang Jianhua Shi Zhehai Wang Ying Cheng Jianxing He Yuankai Shi Hao Yu Yang Zhao Weiqiang Chen Yi Luo Xiuwen Wang Kejun Nan Faguang Jin Jian Dong Baolan Li Zhujun Liu Baohui Han Kai Li 2018Cancer Biology & Medicine2018,15,4:46
2A survey of numerical algorithms for trajectory optimization of flight vehicles显示文摘As one of the important components of computational flight mechanics and control,numerical algorithms of trajectory optimization for flight vehicles are currently studied by many researchers in aerospace engineering to completely solve these difficult problems,but few papers on the survey of this research field have been published recently.Based on the investigation of more than one hundred literatures,considering the application perspectives of computational flight mechanics and recent developments of trajectory optimization,the numerical algorithms of trajectory optimizations for aerospace vehicles are summarized and systematically analyzed.This paper summarized the basic principle,characteristics and application for all kinds of current trajectory optimization algorithms;and introduced some new methods and theories appearing in recent years.Finally,collaborative trajectory optimization for many flight vehicles,and hypersonic vehicle trajectory optimization were mainly reviewed in this paper.In the conclusion of this paper,the future research properties are presented regarding to numerical algorithms of trajectory optimization and control for flight vehicles as follows:collaboration and antagonization for many flight vehicles and multiple targets,global,real-time online,high accuracy of 7-D trajectory,considering all kinds of unknown random disturbances in trajectory optimization,and so on.HUANG GuoQiang LU YuPing NAN Ying 2012Science China(Technological Sciences)2012,55,9:32
3Distribution and assessment of heavy metals in the surface sediment of Yellow River, China显示文摘Large amounts of heavy metals discharged by industrial cities that are located along the middle reach of Yellow River, China have detrimental impacts on both the ecological environment and human health. In this study, fourteen surface sediment samples were taken in the middle reach of the Yellow River. Contents of Zn, Pb, Ni, Cu, Cr, Cd, As were measured, and the pollution status was assessed using three widely used pollution assessment methods, including the single factor index method, Nemerow pollution index method and potential ecological risk index. The concentrations of the studied heavy metals followed the order: Zn > Cr > Cu > Ni > Pb > As > Cd. Nearly 50% of sites had Cu and Cr accumulation. The concentration of Cu at the Yiluo River exceeded the secondary standard value of the Environmental quality standard for soils. Comparison of heavy metal concentrations between this study and other selected rivers indicated that Cu and Cr may be the major pollutants in our case. The single factor index indicated that many samples were at high levels of pollution for Cu and Cd; the Nemerow pollution index indicated that the Yihe River, Luohe River, Yiluo River and Huayuankou were polluted. According to the results of potential ecological risk assessment, Cd in the tributaries of Luo River, Yihe River,and Yiluo River showed high risk toward the ecosystem and human health, Cd in Huanyuankou and Cu in Yiluo River showed a middle level of risk and other samples were at a low level of risk.Nan Yan Wenbin Liu Huiting Xie Lirong Gao Ying Han Mengjing Wang Haifeng Li 2016Journal of Environmental Sciences2016,28,1:33
4Dynamic change of mother-source neutralizing antibodies against enterovirus 71 and coxsackievirus A16 in infants显示文摘背景 Enterovirus 71 (EV71 ) 和 coxsackievirus A16 (考克斯 A16 ) 是为手,脚和嘴疾病(HFMD ) 的主要原因的代理人。研究显示经常的 HFMD 爆发导致一些百孩子在最近的年里的中国的死亡。为 HFMD 的疫苗和另外的研究需要着急地被发展。我们的学习的目的是:探索从江苏省在婴儿对 EV71 和考克斯 A16 抵销抗体的母亲来源的动态开发,中国,并且为相应免疫 course.Methods 外设血样品的进一步的建立提供基本数据在年龄的二和七个月在交货和他们的婴儿前立即来自 133 个生产女人是镇定的一次。微剂量的 cytopathogenic 效果的方法被用来测量在出生前的女人对 EV71 和考克斯 A16, anti-EV71 的 respectively.Results Seropositive 率和反艇长 A16 抵销抗体是 79.7%(106/133 ) 并且 92.5%(123/133 ) 分别地;几何吝啬的 titers (GMT ) 是 29.0 和 61.9;75.9%(101/133 ) 出生前的女人在 anti-EV71 和反艇长 A16 两个都是积极的;anti-EV71 和反艇长 A16 的 seropositive 率是 25.6%(34/133 ) 并且 38.3%(51/133 ) 在在二月年龄的婴儿;GMT 分别地是 12.3 和 18.0。anti-EV71 的 GMT 在二个月与那相比为在七个月(82.6 ) 的婴儿是显著地更高的(P < 0.05 ) ,出现婴儿不显著地在二~七个月期间由 EV71 感染了。尽管仅仅在七个月的一个后代(0.75%) 被发现有反艇长, A16 转了从母亲,这观察建议没有母亲的抗体可以在 EV71 和考克斯 A16 的流行是的七 months.Conclusions 留在婴儿在江苏相对高省。对 EV71 和考克斯 A16 的二原子价的疫苗应该被开发,并且为为婴儿的主要免疫的理想的时间点在年龄的 2-5 月附近。MAO Qun-ying LIAO Xue-yan YU Xiang LI Nan ZHU Feng-cai ZENG Ying LIANG Zheng-lun LI Feng-xiang WANG Jun-zhi LU Feng-min ZHUANG Hui 2010Chinese Medical Journal2010,,13:29
5Ascorbic acid enhances the cardiac differentiation of induced pluripotent stem cells through promoting the proliferation of cardiac progenitor cells显示文摘导致的 pluripotent 干细胞(iPSCs ) 的产生为心疾病,屏蔽的药和潜在的自体同源的心脏的新生的调查打开了新大街。然而,他们的申请被导出 iPSC 的 cardiomyocytes (iPS 厘米) 的低效的心脏的区别,高写在行间可变性,和差的成熟妨碍。为 iPSCs 的心脏的区别和成熟识别有效 inducers 并且阐明机制,我们系统地在各种各样的鼠科的(m) iPSCs 上屏蔽了十六 cardiomyocyte inducers 并且发现没有自发的心脏性的潜力,仅仅维生素酸(AA ) 一致地并且要用体力地包括八提高了十一根线的心脏的区别。我们然后优化了治疗条件并且表明了那区别天 2-6,为心脏的祖先房间(CPC ) 的说明的经期,是一批评时间让 AA 生效。这被 AA 增加了表示的事实进一步证实心血管然而并非 mesodermal 标记。显著, AA 处理导致了近似 7.3 褶层(miPSCs ) 和 30.2 褶层(人的 iPSCs ) 在 iPS 厘米的收益扩充。如此的效果经由 MEK-ERK1/2 小径被归因于 CPC 的增长的特定的增加由通过支持骨胶原合成。另外,导致 AA 的 cardiomyocytes 显示出更好的 sarcomeric 组织并且提高了行动潜力和钙 transients 的回答到 β肾上腺素能并且 muscarinic 刺激。这些调查结果证明 AA 是合适的 cardiomyocyte inducer 让 iPSCs 普遍,简单地改进心脏的区别和成熟。这些调查结果也强调由在指导 pluripotent 干细胞的心脏的区别操作细胞外的微型环境刺激 CPC 增长的重要性。Nan Cao Zumei Liu Zhongyan Chen Jia Wang Taotao Chen Xiaoyang Zhao Yu Ma Lianju Qin Jiuhong Kang Bin Wei Liu Wang Ying Jin Huang-Tian Yang 2012Cell Research2012,22,1:28
6Antibacterial Mechanism of Copper-bearing Antibacterial Stainless Steel against E.Coli显示文摘初步的研究通过象 EDTA (ethylenediaminetetraacetic 酸) 那样的微生物学的实验对 E.coli 在忍受铜的抗菌剂不锈钢的抗菌剂机制上被做 complex-ing, DNA 涂和 AFM (原子力量显微镜) 观察。抗菌剂不锈钢在 99.99%.The 抗菌剂率上与抗菌剂率显示出优秀抗菌剂功能到 E.coli,这被测量如果细菌答案是由 EDTA 的 complexed,是弱的,显示铜离子在抗菌剂不锈钢的抗菌剂效果起一个主导的作用。电气泳动实验没显示出在联系抗菌剂不锈钢以后为 E.coli 涂的 DNA 的现象,它意味着 E.coli 的那 DNA 显然没被损坏。E.coli 的形态学在联系抗菌剂不锈钢以后改变了很多,这被 AFM 观察,例如房间墙严重被改变,在房间的大量内容正在被漏。Li NAN Weichao YANG Yongqian LIU Hui XU Ying LI Manqi LU Ke YANG 2008Journal of Materials Science & Technology2008,24,2:24
7Water quality forecast through application of BP neural network at Yuqiao reservoir显示文摘This paper deals with the study of a water quality forecast model through application of BP neural network technique and GUI (Graphical User Interfaces) function of MATLAB at Yuqiao reservoir in Tianjin. To overcome the shortcomings of traditional BP algorithm as being slow to converge and easy to reach extreme minimum value,the model adopts LM (Leven-berg-Marquardt) algorithm to achieve a higher speed and a lower error rate. When factors affecting the study object are identified,the reservoir's 2005 measured values are used as sample data to test the model. The number of neurons and the type of transfer functions in the hidden layer of the neural network are changed from time to time to achieve the best forecast results. Through simulation testing the model shows high efficiency in forecasting the water quality of the reservoir.ZHAO Ying NAN Jun CUI Fu-yi GUO Liang 2007Journal of Zhejiang University-Science A(Applied Physics & Engineering)2007,8,9:20
8Blockade of Tim-3 Pathway Ameliorates Interferon-γ Production from Hepatic CD8^+ T Cells in a Mouse Model of Hepatitis B Virus Infection显示文摘T cell immunoglobulin-and mucin-domain-containing molecule-3(Tim-3) has been reported to participate in the pathogenesis of inflammatory diseases. However,whether Tim-3 is involved in hepatitis B virus(HBV) infection remains unknown. Here,we studied the expression and function of Tim-3 in a hydrodynamics-based mouse model of HBV infection. A significant increase of Tim-3 expression on hepatic T lymphocytes,especially on CD8+ T cells,was demonstrated in HBV model mice from day 7 to day 18. After Tim-3 knockdown by specific shRNAs,significantly increased IFN-γ production from hepatic CD8+ T cells in HBV model mice was observed. Very interestingly,we found Tim-3 expression on CD8+ T cells was higher in HBV model mice with higher serum anti-HBs production. Moreover,Tim-3 knockdown influenced anti-HBs production in vivo. Collectively,our data suggested that Tim-3 might act as a potent regulator of antiviral T-cell responses in HBV infection.Ying Ju Nan Hou Xiaoning Zhang Di Zhao Ying Liu Jinjin Wang Fang Luan Wei Shi Faliang Zhu Wensheng Sun Lining Zhang Chengjiang Gao Lifen Gao Xiaohong Liang Chunhong Ma 2009Cellular & Molecular Immunology2009,6,1:19
9Fish sauce and gastric cancer:an ecological study in Fujian Province,China显示文摘AIM To explore the relationship betweenconsumption of fish sauce and the risk of gastriccancer in Fujian Province.METHODS An ecological study was carriedout.A total of 11000 subjects from 55 townshipswere randomly selected from 10 counties withinFujian Province.All subjects were localresidents who had been living in Fujian Provincefor more than 20 years,within the age group of45-74 years.Trained interviewers conductedface-to-face interviews with a standardizedquestionnaire,which covered the frequency andamount of food intake,dietary habit,tobaccoand alcohol consumption and history of chronicgastric diseases.Univariate and multivariateanalyses were performed using Epi-info and SASstatistical packages,respectively.RESULTS A significant correlation betweenmonthly consumption of fish sauce and mortalityof gastric cancer was found.Pearson’scoefficient of correlation was statisticallysignificant with r=0.7356 for males,r=0.5246for females(P<0.01).In the multivariateanalysis,consumption of fish sauce still showedan association with the risk of gastric cancer.No significant positive correlation betweenesophagus cancer,liver cancer,colon cancerand consumption of fish sauce were observed.CONCLUSION Long-term intake of fish saucemay be related to high mortality of gastriccancer.Consumption of fish sauce might be oneof important and unique etiologic factors ofgastric cancer in Fujian Province.Furtherstudies are needed to confirm this ecologicalstudy.Lin Cai Shun Zhang Yu Wei Min Ye Ying Nan Yi 2000World Journal of Gastroenterology2000,6,5:18
10Dynamic attack zone of air-to-air missile after being launched in random wind field显示文摘A new concept is presented for air-to-air missile which is dynamic attack zone after being launched in random wind field. This new concept can be used to obtain the 4-dimensional(4-D)information regarding the dynamic envelope of an air-to-air missile at any flight time aimed at different flight targets considering influences of random wind, in the situation of flight fighters cooperated with missiles fighting against each other. Based on an air-to-air missile model, some typical cases of dynamic attack zone after being launched in random wind field were numerically simulated.Compared with the simulation results of traditional dynamic envelope, the properties of dynamic attack zone after being launched are as follows. The 4-D dynamic attack zone after being launched is inside traditional maximum dynamic envelope, but its forane boundary is usually not inside traditional no-escape dynamic envelope; Traditional dynamic attack zone can just be reliably used at launch time, while dynamic envelope after being launched can be reliably and accurately used during any flight antagonism time. Traditional envelope is a special case of dynamic envelope after being launched when the dynamic envelope is calculated at the launch time; the dynamic envelope after being launched can be influenced by the random wind field.Hui Yaoluo Nan Ying Chen Shaodong Ding Quanxin Wu Shengliang 2015Chinese Journal of Aeronautics2015,28,5:16
11Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients显示文摘ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan WANG Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying WANG Li SHI Wei LIU Jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN Jian-xin WANG Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan WANG Rong ZHANG Jing-hong WANG Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao 2013Chinese Medical Journal2013,,12:16
12A nano-cocrystal strategy to improve the dissolution rate and oral bioavailability of baicalein显示文摘Baicalein(BE) is one of the main active flavonoids representing the variety of pharmacological effects including anticancer, anti-inflammatory and cardiovascular protective activities, but it's very low solubility, dissolution rate and poor oral absorption limit the therapeutic applications. In this work, a nano-cocrystal strategy was successfully applied to improve the dissolution rate and bioavailability of BE. Baicalein-nicotinamide(BE-NCT) nanococrystals were prepared by high pressure homogenization and evaluated both in vitro and in vivo. Physical characterization results including scanning electron microscopy, dynamic light scattering, powder X-ray diffraction and differential scanning calorimetry demonstrated that BE-NCT nano-cocrystals were changed into amorphous state with mean particle size of 251.53 nm. In the dissolution test, the BE-NCT nano-cocrystals performed 2.17-fold and 2.54-fold enhancement than BE coarse powder in FaSSIF-V2 and FaSSGF. Upon oral administration, the integrated AUC0-t of BE-NCT nano-cocrystals(6.02-fold) was significantly higher than BE coarse powder(1-fold), BE-NCT cocrystals(2.87-fold) and BE nanocrystals(3.32-fold). Compared with BE coarse powder, BE-NCT cocrystals and BE nanocrystals, BENCT nano-cocrystals possessed excellent performance both in vitro and in vivo evaluations.Thus, it can be seen that nano-cocrystal is an appropriate novel strategy for improving dissolution rate and bioavailability of poor soluble natural products such as BE.Jiaxin Pi Shuya Wang Wen Li Dereje Kebebe Ying Zhang Bing Zhang Dongli Qi Pan Guo Nan Li Zhidong Liu 2019Asian Journal of Pharmaceutical Sciences2019,14,2:12
13Diet and gastric cancer:a case-control study in Fujian Province,China显示文摘NTRODUCTIONChangleandFuqingcitiesarelocatedinthesoutheasternpartofFujianProvince,Chinawithahighincidenceofgastriccancer.Howev...YE Wei Min 1, YI Ying Nan 1, LUO Ren Xia 2, ZHOU Tian Shu 3, LIN Ru Tao 1 and CHEN Gui Dong 3 1998World Journal of Gastroenterology1998,4,6:12
14Cloning of a Vacuolar H^+-pyrophosphatase Gene from the Halophyte Suaeda corniculata whose Heterologous Overexpression Improves Salt,Saline-alkali and Drought Tolerance in Arabidopsis显示文摘Salt,saline-alkali conditions,and drought are major environmental factors limiting plant growth and productivity.The vacuolar H+-translocating inorganic pyrophosphatase(V-H+-PPase) is an electrogenic proton pump that translocates protons into vacuoles in plant cells.Expression of V-H+-PPase increases in plants under a number of abiotic stresses,and is thought to have an important role in adaptation to abiotic stress.In this work,we report the isolation and characterization of the gene,ScVP,encoding a vacuolar inorganic pyrophosphatase(V-H+-PPase) from the halophyte,Suaeda corniculata.Semiquantitative reverse transcription-polymerase chain reaction analysis showed that ScVP was induced in roots,stems and leaves under treatment with salt,saline-alkali and drought.Compared with wild-type(WT) Arabidopsis,transgenic plants overexpressing ScVP accumulated more Na+ in leaves and roots,and showed increased tolerance to high salinity,saline-alkali and drought stresses.The germination percentage of transgenic Arabidopsis seeds was higher than that of WT seeds under the abiotic stresses.The root length of transgenic plants under salt stress was longer than that of WT plants.Furthermore,the rate of water loss during drought stress was higher in WT than in transgenic plants.Collectively,these results indicate that ScVP plays an important role in plant tolerance to salt,saline-alkali and drought stress.Liang Liu Ying Wang Nan Wang Yuan-Yuan Dong Xiu-Duo Fan Xiu-Ming Liu Jing Yang Hai-Yan Li 2011Journal of Integrative Plant Biology2011,53,9:11
15Conversion and pharmacokinetics profiles of a novel pro-drug of 3-n-butylphthalide, potassium 2-(1-hydroxypentyl)-benzoate, in rats and dogs显示文摘钾 2-(1-hydroxypentyl ) 安息香酸盐(dl-PHPB ) 是被用来治疗 ischemic 击的 3-n-butylphthalide (dl-NBP ) 支持药的一篇小说。当前, dl-PHPB 在在中国的阶段 II-III 临床的审判。在这研究,我们在 vitro 并且在 vivo 调查了变换和 dl-PHPB 的 pharmacokinetics 侧面。到 dl-NBP 的 dl-PHPB 的变换是 pH-dependent, 和钙依赖者,并且 paraoxonase 在老鼠血浆为变换作为主要的酶被识别。pharmacokinetics,织物分发和 dl-PHPB 的排泄被学习并且与在老鼠和狗的 dl-NBP 的平等者臼齿的剂量相比。在里面 vivo 研究证明 dl-PHPB 能快速并且完全被变换成 dl-NBP。在静脉内的 dl-PHPB 管理以后的变换 dl-NBP 的血浆集中时间功课是将近与那一样在平等者臼齿的 dl-NBP 以后。C 分别地,在在老鼠和狗的口头的 dl-PHPB 管理以后的 dl-NBP 的最大 和 AUC 比在口头的 dl-NBP 管理以后的那些在 60% 和 170% 是更高的。dl-PHPB 的织物分发的分析表明那变换 dl-NBP 首先在脂肪,大脑和胃被散布。在大脑, dl-NBP 的层次在 dl-PHPB 处理由以后是相对更高的口头上地比在有平等者臼齿的 dl-NBP 的处理以后。近似 dl-NBP 的 3%-4% 与 dl-PHPB 或 dl-NBP 在 dosing 以后在 72 h 以内被排泄,但是没有 dl-PHPB 在尿或排汇物排泄物被检测。我们的结果证明 dl-PHPB 的变换在口头或静脉内的管理以后是快的。而且, dl-PHPB 的 bioavailability 显然比 dl-NBP 的好。Jiang LI Shao-feng XU Ying PENG Nan FENG Ling WANG Xiao-liang WANG 2018Acta Pharmacologica Sinica2018,39,2:10
16TaqMan Real-time RT-PCR Assay for Detecting and Differentiating Japanese Encephalitis Virus显示文摘Objective To detect Japanese encephalitis virus(JEV) rapidly and distinguish its genotypes, a TaqMan-based reverse transcriptase quantitative polymerase chain reaction(RT-PCR) detection system was developed.Methods By aligning the full-length sequences of JEV(G1-G5), six sets of highly specific TaqMan real-time RT-PCR primers and probes were designed based on the highly conserved NS1, NS2, and M genes of JEV, which included one set for non-specific JEV detection and five sets for the detection of specific JEV genotypes. Twenty batches of mosquito samples were used to evaluate our quantitative PCR assay.Results With the specific assay, no other flavivirus were detected. The lower limits of detection of the system were 1 pfu/mL for JEV titers and 100 RNA copies/μL. The coefficients of variation of this real-time RT-PCR were all < 2.8%. The amplification efficiency of this method was between 90% and 103%.Conclusion A TaqMan real-time RT-PCR detection system was successfully established to detect and differentiate all five JEV genotypes.SHAO Nan LI Fan NIE Kai FU Shi Hong ZHANG Wei Jia HE Ying LEI Wen Wen WANG Qian Ying LIANG Guo Dong CAO Yu Xi WANG Huan Yu 2018Biomedical and Environmental Sciences2018,31,3:10
17Prognostic values of the integrated model incorporating the volume of metastatic regional cervical lymph node and pretreatment serum Epstein-Barr virus DNA copy number in predicting distant metastasis in patients with N1 nasopharyngeal carcinoma显示文摘Background: According to the 7 th edition of the American Joint Committee on Cancer(AJCC) staging system, over50% of patients with nasopharyngeal carcinoma(NPC) have N1 disease at initial diagnosis. However, patients with N1 NPC are relatively under-researched, and the metastasis risk of this group is not well-stratified. This study aimed to evaluate the prognostic values of gross tumor volume of metastatic regional lymph node(GTVnd) and pretreatment serum copy number of Epstein-Barr virus(EBV) DNA in predicting distant metastasis of patients with N1 NPC, and to develop an integrated prognostic model that incorporates GTVnd and EBV DNA copy number for this group of patients.Methods: The medical records of 787 newly diagnosed patients with nonmetastatic, histologically proven N1 NPC who were treated at Sun Yat-sen University Cancer Center between November 2009 and February 2012 were analyzed. Computed tomography-derived GTVnd was measured using the summation-of-area technique. Blood samples were collected before treatment to quantify plasma EBV DNA. The receiver operating characteristic(ROC) curve analysis was used to evaluate the cut-off point for GTVnd, and the area under the ROC curve was used to assess the predicted validity of GTVnd. The survival rates were assessed by Kaplan-Meier analysis, and the survival curves were compared using a log-rank test. Multivariate analysis was conducted using the Cox proportional hazard regression model.Results: The 5-year distant metastasis-free survival(DMFS) rates for patients with GTVnd > 18.9 vs.≤ 18.9 mL were82.2% vs. 93.2%(P < 0.001), and for patients with EBV DNA copy number > 4000 vs. < 4000 copies/mL were 83.5% vs.93.9%(P < 0.001). After adjusting for GTVnd, EBV DNA copy number, and T category in the Cox regression model, both GTVnd > 18.9 mL and EBV DNA copy number > 4000 copies/mL were significantly associated with poor prognosis(both P < 0.05). According to combination of GTVnd and EBV DNA copy number, all patients were divided into low-,moderate-, and high-risk groups, with the 5-year DMFS rates of 96.1,87.4, and 73.8%, respectively(P < 0.001). Multivariate analysis confirmed the prognostic value of this model for distant metastatic risk stratification(hazard ratio [HR],4.17; 95% confidence interval [CI] 2.34-7.59; P < 0.001).Conclusions: GTVnd and serum EBV DNA copy number are independent prognostic factors for predicting distant metastasis in NPC patients with N1 disease. The prognostic model incorporating GTVnd and EBV DNA copy number may improve metastatic risk stratification for this group of patients.Ji‑Jin Yao Guan‑Qun Zhou Ya‑Qin Wang Si‑Yang Wang Wang‑Jian Zhang Ya‑Nan Jin Fan Zhang Li Li Li‑Zhi Liu Zhi‑Bin Cheng Jun Ma Zhen‑Yu Qi 2017Chinese Journal of Cancer2017,36,12:9
18Type I interferons promote the survival and proinflammatory properties of transitional B cells in systemic lupus erythematosus patients显示文摘A hallmark of systemic lupus erythematosus(SLE)is the breaking of B-cell tolerance with the generation of high-affinity autoantibodies;however,the antibody-independent features of the B-cell compartment in SLE are less understood.In this study,we performed an extensive examination of B-cell subsets and their proinflammatory properties in a Chinese cohort of new-onset SLE patients.We observed that SLE patients exhibited an increased frequency of transitional B cells compared with healthy donors and rheumatoid arthritis patients.Plasma from SLE patients potently promoted the survival of transitional B cells in a type I IFN-dependent manner,which can be recapitulated by direct IFN-αtreatment.Furthermore,the effect of IFN-αon enhanced survival of transitional B cells was associated with NF-κB pathway activation and reduced expression of the pro-apoptotic molecule Bax.Transitional B cells from SLE patients harbored a higher capacity to produce proinflammatory cytokine IL-6,which was also linked to the overactivated type I IFN pathway.In addition,the frequency of IL-6-producing transitional B cells was positively correlated with disease activity in SLE patients,and these cells were significantly reduced after short-term standard therapies.Thus,the current study provides a direct link between type I IFN pathway overactivation and the abnormally high frequency and proinflammatory properties of transitional B cells in active SLE patients,which contributes to the understanding of the roles of type I IFNs and B cells in the pathogenesis of SLE.Mei Liu Qiang Guo Chunmei Wu Delphine Sterlin Shyamal Goswami Ying Zhang Teng Li Chunde Bao Nan Shen Qiong Fu Xiaoming Zhang 2019Cellular & Molecular Immunology2019,16,4:9
19Endothelium-Mimicking Multifunctional Coating Modified Cardiovascular Stents via a Stepwise Metal-Catechol-(Amine)Surface Engineering Strategy显示文摘Stenting is currently the major therapeutic treatment for cardiovascular diseases.However,the nonbiogenic metal stents are inclined to trigger a cascade of cellular and molecular events including inflammatory response,thrombogenic reactions,smooth muscle cell hyperproliferation accompanied by the delayed arterial healing,and poor reendothelialization,thus leading to restenosis along with late stent thrombosis.To address prevalence critical problems,we present an endothelium-mimicking coating capable of rapid regeneration of a competently functioning new endothelial layer on stents through a stepwise metal(copper)-catechol-(amine)(MCA)surface chemistry strategy,leading to combinatorial endothelium-like functions with glutathione peroxidase-like catalytic activity and surface heparinization.Apart from the stable nitric oxide(NO)generating rate at the physiological level(2:2×10^(-10) mol/cm^(2)/min lasting for 60 days),this proposed strategy could also generate abundant amine groups for allowing a high heparin conjugation efficacy up to∼1μg/cm^(2),which is considerably higher than most of the conventional heparinized surfaces.The resultant coating could create an ideal microenvironment for bringing in enhanced antithrombogenicity,anti-inflammation,anti-proliferation of smooth muscle cells,re-endothelialization by regulating relevant gene expressions,hence preventing restenosis in vivo.We envision that the stepwise MCA coating strategy would facilitate the surface endothelium-mimicking engineering of vascular stents and be therefore helpful in the clinic to reduce complications associated with stenosis.Ying Yang Peng Gao Juan Wang Qiufen Tu Long Bai Kaiqin Xiong Hua Qiu Xin Zhao Manfred FMaitz Huaiyu Wang Xiangyang Li Qiang Zhao Yin Xiao Nan Huang Zhilu Yang 2020Research2020,,1:8
20Dynamically reconfigurable topological edge state in phase change photonic crystals显示文摘The observation of topological edge states(TESs) revolutionized our understanding of scattering and propagation of electromagnetic(EM) waves. Supported by topological robustness, the TES at the interface between trivial and non-trivial insulators was not reflected from the structural disorders and imperfections. Recently topological photonic crystals(PhCs) were demonstrated to obtain remarkable one-way propagation of the TES, having the advantages of lossless propagation, dense integration, and high fabrication tolerance over conventional PhCs. Nevertheless, the lack of reversible switching of TES possesses significant limitations in helicity/spin filtering and tunable photonic devices. We proposed a topological PhC based on a prototypical phase-change material, Ge2 Sb2 Te5(GST225) to solve the problem. We find that at a particular frequency, the TES within the structure can be reversibly switched between 'on'and 'off' by transiting the GST225 structural state between amorphous and crystalline. Moreover, the topology of the PhC was maintained since the tuning of TES was achieved by varying the refractive index of GST225 instead of the structural geometry. This provides a continuous change of the spectral position of the photonic bandgap and TES by gradually crystallising the GST225. We show that the phase change of GST225 from amorphous to crystalline and vice versa can be engineered in nanoseconds. Our proof of concept may offer a platform for dynamically tuning the TESs that might otherwise be challenging to attain in photonic systems. We expect it to have potential applications for photonic devices in topological optical circuits and scatter-free one-way light propagation.Tun Cao Linhan Fang Ying Cao Nan Li Zhiyou Fan Zhiguo Tao 2019Science Bulletin2019,64,12:8
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