期刊文献+
共找到6篇文章
< 1 >
每页显示 20 50 100
乳腺癌中GFRA1表达临床意义的生物信息学分析 被引量:5
1
作者 谢萍芳 赵东怡 +5 位作者 周美容 张丹华 邹琼燕 周恩相 易文君 李伦 《中国肿瘤临床》 CAS CSCD 北大核心 2018年第15期769-773,共5页
目的:通过生物信息学的方法分析胶质细胞系源性神经营养因子受体1(glial cell line derived neurotrophic factorα1,GFRA1)在乳腺癌组织中表达情况及其临床意义。方法:全面检索GEO、TCGA、Oncomine、Kmplot数据库分析GFRA1在乳腺癌中... 目的:通过生物信息学的方法分析胶质细胞系源性神经营养因子受体1(glial cell line derived neurotrophic factorα1,GFRA1)在乳腺癌组织中表达情况及其临床意义。方法:全面检索GEO、TCGA、Oncomine、Kmplot数据库分析GFRA1在乳腺癌中表达情况,分析其预测化疗、内分泌治疗疗效和预后的价值。结果:GFRA1在不同类型乳腺癌组织中高表达(P<0.05),与ER(r=0.66)、PR(r=0.22)表达水平呈正相关,与HER-2(r=-0.09)、Ki-67(r=-0.12)表达水平呈负相关。GFRA1低表达乳腺癌患者对他莫昔芬和多柔比星易产生耐药。GFRA1表达水平与乳腺癌患者预后显著相关(P<0.05),GFRA1高表达患者总生存率、无复发生存率高于低表达患者。结论:GFRA1在乳腺癌组织中高表达,低表达乳腺癌患者对他莫昔芬和多柔比星耐药,且预后较差。 展开更多
关键词 生物信息学 GFRA1 乳腺癌 耐药 预后
下载PDF
Correction: Characterization of a small-molecule inhibitor targeting NEMO/IKKβ to suppress colorectal lcancergrowth
2
作者 Zhenlong Yu Jian Gao +13 位作者 Xiaolei Zhang Yulin Peng Wenlong Wei Jianrong Xu Zhenwei Li Chao Wang meirong zhou Xiangge Tian Lei Feng Xiaokui Huo Min Liu Mingliang Ye De-an Guo Xiaochi Ma 《Signal Transduction and Targeted Therapy》 SCIE CSCD 2023年第10期5119-5119,共1页
In the process of collating the raw data,the authors noticed an inadvertent mistake occurred in Fig.3b that needs to be corrected after online publication of the article.In Fig.3b,as a result of an error in the graphi... In the process of collating the raw data,the authors noticed an inadvertent mistake occurred in Fig.3b that needs to be corrected after online publication of the article.In Fig.3b,as a result of an error in the graphics panel arrangement process,the band of NEMO was repeatedly inserted asβ-actin by mistake.The correct band is shown as below and in the updated Fig.3b.The correction did not affect any of our results or discussion as present in the original publication.We regret any inconvenience this has caused. 展开更多
关键词 COLORECTAL GRAPHICS arrangement
原文传递
长江中游河道床面冲淤及河岸崩退数学模型研究及其应用 被引量:10
3
作者 夏军强 邓珊珊 +1 位作者 周美蓉 林芬芬 《科学通报》 EI CAS CSCD 北大核心 2019年第7期725-740,共16页
三峡工程运用后,长江中游河段持续冲刷,局部河段崩岸现象较为突出,尤其在荆江河段.崩岸不仅影响局部河段河势的稳定,同时还影响两岸防洪及航运安全.本研究通过耦合一维水沙动力学模块、潜水位变化模块以及二元结构河岸稳定性分析模块,... 三峡工程运用后,长江中游河段持续冲刷,局部河段崩岸现象较为突出,尤其在荆江河段.崩岸不仅影响局部河段河势的稳定,同时还影响两岸防洪及航运安全.本研究通过耦合一维水沙动力学模块、潜水位变化模块以及二元结构河岸稳定性分析模块,建立了模拟坝下游冲积河道床面冲淤及河岸崩退的一维耦合数学模型.采用该模型分别计算了不同年份长江中游荆江段的河床变形过程,对模型进行较为详细地率定和验证.计算结果表明:该模型能较好地反演研究河段内的水沙输移过程,并能模拟出主要崩岸发生区域及崩岸宽度;崩岸主要受近岸水流冲刷作用控制,但河岸土体内潜水位变化对上荆江河段崩岸的影响也较为显著;在下荆江河段,超过50%的河岸在洪峰期发生绕轴崩塌现象.此外,还分析了河段出口水位及河岸土体特性参数变化对崩岸计算结果的影响,这些参数的敏感性测试结果表明:当出口断面水位由于洞庭湖入汇而上升时,河段水面纵比降及平均流速减小,导致研究河段内崩岸宽度会有所降低;土体起动切应力的减小对河岸崩塌的影响最为显著,尤其在下荆江河段. 展开更多
关键词 床面冲淤 河岸崩退 潜水位变化 耦合模型 荆江河段 长江中游
原文传递
下荆江急弯段凸冲凹淤演变过程与机理 被引量:3
4
作者 刘鑫 夏军强 +3 位作者 邓珊珊 周美蓉 毛禹 许全喜 《科学通报》 EI CAS CSCD 北大核心 2022年第22期2672-2683,共12页
三峡工程运用后,下荆江急弯河段出现凸冲凹淤的弯道演变现象,威胁防洪与航运安全.下荆江8个弯道为急弯(相对曲率B/R>0.5),6个急弯段的弯顶上游区域发生了明显的凸冲凹淤过程,且主要表现为凸岸边滩冲刷下切、河岸持续崩退,凹岸深槽回... 三峡工程运用后,下荆江急弯河段出现凸冲凹淤的弯道演变现象,威胁防洪与航运安全.下荆江8个弯道为急弯(相对曲率B/R>0.5),6个急弯段的弯顶上游区域发生了明显的凸冲凹淤过程,且主要表现为凸岸边滩冲刷下切、河岸持续崩退,凹岸深槽回淤并形成长条形心滩,导致断面形态由不对称的三角形变为W形.本文采用水沙及实测流场资料,从水流流速重分布、来沙组成变化及河岸土体组成等3个方面研究了急弯段凸冲凹淤的演变机理.结果表明:(1)急弯段水流流速重分布规律有利于弯顶上游凸冲凹淤现象的形成,在弯顶上游段流速分布主要受曲率变化控制(贡献率占67%),导致主流长期偏靠并冲刷凸岸,凹岸流速较小且易形成水流分离区,利于泥沙落淤;(2)由于上游来沙量减少约82%,细沙比例减小,粗沙比例增加,导致弯顶上游凸岸边滩冲刷后,无法及时回淤,故凸岸边滩总体呈冲刷下切趋势,但粗沙可在流速较小的凹岸侧落淤形成心滩;(3)在凸冲凹淤过程长期作用下,河床横比降减小,曲率变化对流速横向分布的贡献率增大,主流继续向凸岸摆动,进一步促进了凸冲凹淤过程的发展.因此,在水沙条件相对稳定的情况下,下荆江急弯河段凸冲凹淤过程会继续发展,在没有限制的情况下,急弯段逐渐下移. 展开更多
关键词 急弯河段 凸冲凹淤 流速重分布 来沙条件 下荆江
原文传递
Characterization of a small-molecule inhibitor targeting NEMO/IKKβto suppress colorectal cancer growth 被引量:4
5
作者 Zhenlong Yu Jian Gao +13 位作者 Xiaolei Zhang Yulin Peng Wenlong Wei Jianrong Xu Zhenwei Li Chao Wang meirong zhou Xiangge Tian Lei Feng Xiaokui Huo Min Liu Mingliang Ye De-an Guo Xiaochi Ma 《Signal Transduction and Targeted Therapy》 SCIE CSCD 2022年第4期1219-1231,共13页
NEMO/IKKβcomplex is a central regulator of NF-κB signaling pathway,its dissociation has been considered to be an attractive therapeutic target.Herein,using a combined strategy of molecular pharmacological phenotypin... NEMO/IKKβcomplex is a central regulator of NF-κB signaling pathway,its dissociation has been considered to be an attractive therapeutic target.Herein,using a combined strategy of molecular pharmacological phenotyping,proteomics and bioinformatics analysis,Shikonin(SHK)is identified as a potential inhibitor of the IKKβ/NEMO complex.It destabilizes IKKβ/NEMO complex with IC_(50) of 174 nM,thereby significantly impairing the proliferation of colorectal cancer cells by suppressing the NF-κB pathway in vitro and in vivo.In addition,we also elucidated the potential target sites of SHK in the NEMO/IKKβcomplex.Our study provides some new insights for the development of potent small-molecule PPI inhibitors. 展开更多
关键词 IKKΒ COLORECTAL cancer
原文传递
Variation in reach-averaged bankfull discharge in the Yellow River Estuary in recent years
6
作者 Zhuoyuan YANG Junqiang XIA +3 位作者 meirong zhou Shanshan DENG Zenghui WANG Zhiwei LI 《Frontiers of Earth Science》 SCIE CSCD 2021年第3期606-619,共14页
The Yellow River Estuary(YRE)alternatively experienced channel aggradation and degradation during the period 1990-2016.To study the variation in flood discharge capacity during the process of river bed evolution,bankf... The Yellow River Estuary(YRE)alternatively experienced channel aggradation and degradation during the period 1990-2016.To study the variation in flood discharge capacity during the process of river bed evolution,bankfull characteristic parameters were investigated on the basis of measured hydrological data and surveyed cross-sectional profiles,which was crucial for comprehending the processes and the key factors to cause these rapid changes.A reach-averaged method was presented in this study in order to calculate the characteristic bankfull parameters in the YRE,and this method integrated the geometric mean using the logarithmic transformation with a weighted mean based on the distance between the two successive sections.The reach-averaged bankfull parameters in the tail reach of the Yellow River Estuary(the Lijin-Xihekou reach)during the period 1990-2016 were then calculated.Calculated results indicated that the adoption of a concept of reach-averaged bankfull discharge was much more representative than the cross-sectional bankfull discharge,and the results also indicated that bankfull discharges decreased during the process of channel aggradation,and increased during the process of channel degradation.Finally,an empirical formula and a delayed response function were established between the reach-averaged bankfull discharge and the previous 4-year average fluvial erosion intensity during flood seasons,and both of them were adopted to reproduce the reach-averaged bankfull discharges,and calculated results showed high correlations(R^(2)>0.8)of these two methods. 展开更多
关键词 channel adjustments reach-averaged bankfull discharge empirical relation delayed response equation Yellow River Estuary
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部