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1Spatiotemporal characteristics, patterns, and causes of land-use changes in China since the late 1980s显示文摘Land-use/land-cover 变化(LUCC ) 有连接到人和自然相互作用。瓷器 Land-Use/cover 数据集(CLUD ) 从 1980 年代末在 5 年的间隔定期被更新到 2010,与基于 Landsat TMETM+ 图象的标准过程。陆地使用动态区域化方法被建议分析主要陆地使用变换。在国家规模的陆地使用变化的空间与时间的特征,差别,和原因然后被检验。主要调查结果如下被总结。越过中国的陆地使用变化(LUC ) 在最后 20 年(19902010 ) 里在空间、时间的特征显示了一个重要变化。农田变化的区域在南方减少了并且在北方,而是仍然是的全部的区域增加了几乎未改变。回收农田从东北被转移到西北。布满建筑物陆地很快膨胀了,主要在东方被散布,并且逐渐地展开到中央、西方的中国。树林首先减少了,然后增加但是荒芜的区域是反面。草地继续减少。在中国的 LUC 的不同空间模式被发现在之间迟了第 20 世纪并且早第 21 世纪。原版 13 个 LUC 地区在一些地区被边界的变化由 15 个单位代替。包括的这些变化(1 ) 的主要空间特征加速的扩大布满建筑物在 Huang-Huai-Hai 区域,东南的沿海的区域,长江的中流区域,和四川盆登陆;(2 ) 从东北中国和东方内部蒙古在北方转移了陆地开垦到绿洲在西北中国的农业区域;(3 ) 从在到稻的东北中国的喂雨的农田的连续转变回答;并且(4 ) 为在内部蒙古,黄土高原,和西南的多山的区域的南部的农业牧剧的交错群落的格林工程的谷物的有效性。在最后二十年,尽管在北方的气候变化在农田影响了变化,政策规定和经济驱动力仍然是越过中国的 LUC 的主要原因。在第 21 世纪的第一十年期间,在陆地使用模式驾驶了变化的人为的因素从单程的陆地开发转移了强调到开发和保存。动态区域化方法被用来在单位的 zoning 边界,地区的内部特征,和生长和减少的空间模式分析变化。结果揭示了变化过程的模式,也就是 LUC 的过程和在在不同阶段的特征的地区性的差别。地区的生长和减少在这动态 LUC zoning,在统一边界的变化,和在前者和后者十年之间的变化紧张的特征期间被检验。在为在不同类型和陆地使用的不同区域的变化的陆地使用和原因的模式和过程之间的其他的转变的模式被探索。LIU Jiyuan KUANG Wenhui ZHANG Zengxiang XU Xinliang QIN Yuanwei NING Jia ZHOU Wancun ZHANG Shuwen LI Rendong YAN Changzhe WU Shixin SHI Xuezheng JIANG Nan YU Dongsheng PAN Xianzhang CHI Wenfeng 2014Journal of Geographical Sciences2014,24,2:245
2Relationship between different surgical methods,hemorrhage position,hemorrhage volume,surgical timing,and treatment outcome of hypertensive intracerebral hemorrhage显示文摘BACKGROUND:The present study aimed to explore the relationship between surgical methods,hemorrhage position,hemorrhage volume,surgical timing and treatment outcome of hypertensive intracerebral hemorrhage(HICH).METHODS:A total of 1 310 patients,who had been admitted to six hospitals from January 2004 to January 2008,were divided into six groups according to different surgical methods:craniotomy through bone fl ap(group A),craniotomy through a small bone window(group B),stereotactic drilling drainage(group C1 and group C2),neuron-endoscopy operation(group D) and external ventricular drainage(group E) in consideration of hemorrhage position,hemorrhage volume and clinical practice. A retrospective analysis was made of surgical timing and curative effect of the surgical methods.RESULTS:The effectiveness rate of the methods was 74.12% for 1 310 patients after onemonth follow-up. In this series,the disability rate was 44.82% 3–6 months after the operation. Among the 1 310 patients,241(18.40%) patients died after the operation. If hematoma volume was >80 mL and the operation was performed within 3 hours,the mortality rate of group A was signifi cantly lower than that of groups B,C,D,and E(P<0.05). If hematoma volume was 50–80 mL and the operation was performed within 6–12 hours,the mortality rate of groups B and D was lower than that of groups A,C and E(P<0.05). If hematoma volume was 20–50 mL and the operation was performed within 6–24 hours,the mortality rate of group C was lower than that of groups A,B and D(P<0.05).CONCLUSIONS:Craniotomy through a bone f lap is suitable for patients with a large hematoma and hernia of the brain. Stereotactic drilling drainage is suggested for patients with hematoma volume less than 80 mL. The curative effect of HICH individualized treatment would be improved via the suitable selection of operation time and surgical method according to the position and volume of hemorrhage.Feng-ling Chi Tie-cheng Lang Shu-jie Sun Xue-jie Tang Shu-yuan Xu Hong-bo Zheng Hui-song Zhao 2014World Journal of Emergency Medicine2014,5,3:114
3Prevalence of minimal hepatic encephalopathy and quality of life evaluations in hospitalized cirrhotic patients in China显示文摘AIM:To investigate the prevalence of minimal hepatic encephalopathy(MHE)and to assess corresponding health-related quality of life(HRQoL)in hospitalized cirrhotic patients in China.METHODS:This multi-center cross-sectional study included 16 teaching hospitals,which were members of 'Hepatobiliary Cooperation Group,Society of Gastroenterology,Chinese Medical Association',from different areas of China carried out between June and October in 2011.All the eligible hospitalized cirrhotic patients(n = 538)were required to complete triplicate number connection tests combined with one digit symbol test for diagnosing MHE.Patients' clinical examination data were complemented by a modified questionnaire assessing HRQoL.Written informed consent was obtained from each patient.RESULTS:Male was predominant(68.6%)in 519 patients who met the criteria of the study,with a mean age of 49.17 ± 11.02 years.The most common cause of liver cirrhosis was chronic hepatitis B(55.9%).The prevalence of MHE was 39.9% and varied by ChildPugh-Classification score(CPC-A:24.8%,CPC-B:39.4% and CPC-C:56.1%,P < 0.01).MHE(P < 0.01)and higher CPC scores(P < 0.01)were associated with a high HRQoL scores(reflecting poorer quality of life).The prevalence of MHE was proportionate to CPC(P = 0.01)and high quality of life scores(P = 0.01).CONCLUSION:Hospitalized cirrhotic patients have a high prevalence of MHE that is proportionate to the degree of liver function and HRQoL impairment.Ji-Yao Wang Ning-Ping Zhang Bao-Rong Chi Yu-Qing Mi Li-Na Meng Ying-Di Liu Jiang-Bin Wang Hai-Xing Jiang Jin-Hui Yang Yun Xu Xiao Li Jian-Ming Xu Guo Zhang Xin-Min Zhou Yu-Zheng Zhuge De-An Tian Jin Ye Yu-Lan Liu 2013World Journal of Gastroenterology2013,19,30:64
4aunalysis of the Genome Sequence of the Medicinal Plant Salvia miltiorrhiza显示文摘Haibin Xu Jingyuan Song Hongmei Luo Yujun Zhang Qiushi Li Yingjie Zhu Jiang Xu Ying Li Chi Song Bo Wang Wei Sun Guoan Shen Xin Zhang Jun Qian Aijia Ji Zhichao Xu Xiang Luo Liu He Chuyuan Li Chao Sun Haixia Yah Guanghong Cui Xiwen Li Xian 'en Li Jianhe Wei Juyan Liu Yitao Wang Alice Hayward David Nelson Zemin Ning Reuben J. Peters Xiaoquan Qi Shilin Chen 2016Molecular Plant2016,9,6:70
5Enhanced secondary pollution offset reduction of primary emissions during COVID-19 lockdown in China显示文摘To control the spread of the 2019 novel coronavirus(COVID-19),China imposed nationwide restrictions on the movement of its population(lockdown)after the Chinese New Year of 2020,leading to large reductions in economic activities and associated emissions.Despite such large decreases in primary pollution,there were nonetheless several periods of heavy haze pollution in eastern China,raising questions about the well-established relationship between human activities and air quality.Here,using comprehensive measurements and modeling,we show that the haze during the COVID lockdown was driven by enhancements of secondary pollution.In particular,large decreases in NOx emissions from transportation increased ozone and nighttime NO_(3)radical formation,and these increases in atmospheric oxidizing capacity in turn facilitated the formation of secondary particulate matter.Our results,afforded by the tragic natural experiment of the COVID-19 pandemic,indicate that haze mitigation depends upon a coordinated and balanced strategy for controlling multiple pollutants.Xin Huang Aijun Ding Jian Gao Bo Zheng Derong Zhou Ximeng Qi Rong Tang Jiaping Wang Chuanhua Ren Wei Nie Xuguang Chi Zheng Xu Liangduo Chen Yuanyuan Li Fei Che Nini Pang Haikun Wang Dan Tong Wei Qin Wei Cheng Weijing Liu Qingyan Fu Baoxian Liu Fahe Chai Steven JDavis Qiang Zhang Kebin He 2021National Science Review2021,8,2:47
6The Genome Sequence Archive Family: Toward Explosive Data Growth and Diverse Data Types显示文摘The Genome Sequence Archive(GSA)is a data repository for archiving raw sequence data,which provides data storage and sharing services for worldwide scientific communities.Considering explosive data growth with diverse data types,here we present the GSA family by expanding into a set of resources for raw data archive with different purposes,namely,GSA(http://gffzz77e3413bc06540eds9kck5x9fn0oq69vn.ffgz.tsg.suse.edu.cn/gsa/),GSA for Human(GSA-Human,http://gffzz77e3413bc06540eds9kck5x9fn0oq69vn.ffgz.tsg.suse.edu.cn/gsa-human/),and Open Archive for Miscellaneous Data(OMIX,http://gffzz77e3413bc06540eds9kck5x9fn0oq69vn.ffgz.tsg.suse.edu.cn/omix/).Compared with the 2017 version,GSA has been significantly updated in data model,online functionalities,and web interfaces.GSA-Human,as a new partner of GSA,is a data repository specialized in human genetics-related data with controlled access and security.OMIX,as a critical complement to the two resources mentioned above,is an open archive for miscellaneous data.Together,all these resources form a family of resources dedicated to archiving explosive data with diverse types,accepting data submissions from all over the world,and providing free open access to all publicly available data in support of worldwide research activities.Tingting Chen Xu Chen Sisi Zhang Junwei Zhu Bixia Tang Anke Wang Lili Dong Zhewen Zhang Caixia Yu Yanling Sun Lianjiang Chi Huanxin Chen Shuang Zhai Yubin Sun Li Lan Xin Zhang Jingfa Xiao Yiming Bao Yanqing Wang Zhang Zhang Wenming Zhao 2021Genomics, Proteomics & Bioinformatics2021,19,4:38
7Breast magnetic resonance imaging in patients with occult breast carcinoma: evaluation on feasibility and correlation with histopathological findings显示文摘是的背景一个不平常的演讲,秘密主要乳癌在临床的实践仍然是诊断、治疗学的挑战。这研究试图回顾地估计胸的可行性在有恶意的腋的 lymphadenopathy 和未知主要恶意的病人的磁性的回声成像(MRI ) ,和与有秘密的胸癌的 35 个女人全部的组织病理学说的 characteristics.Methods A 的关联与动态提高对比的胸 MRI 被评估。完全使连续节在所有情况中被使用。MRI 性能被估计并且与 35 个病人中的 21 个被发现组织学地有主要的胸癌的组织病理学说的 findings.Results 相关。21 个病人中的二十个有反常先生调查结果, 1 个病人让正常 MRI 学习。留下 14 个病人, 10 在 MRI 和外科上是否定的。MRI 和没有相应肿瘤上的四有的可疑改进被发现。在 45% 的改进在 55% 被发现的有质量的损害(11/20 ) 和 ductual 和部分改进。主要肿瘤的平均直径是 15 公里。侵略 ductal 癌在 81% 被发现(17/21 ) 。17 侵略 ductual 癌之一太小,不能被分级。留下中的十四个 16 作为等级 II 被分类并且 2 是等级我。35 个病人中的 32 个收到了雌激素受体,孕酮受体和人表皮的生长因素受体 2 考试并且 32 中的 12 个是有小尺寸的三元组否定的胸 carcinoma.Conclusions 团损害,有 ductal 或片断改进的损害是在有秘密乳癌的病人的普通 MRI 特征。主要肿瘤的主导的类型是有中等组织病理学说的等级的侵略 ductal 癌。三元组否定的胸癌的率可能在秘密乳癌是更高的。LU Hong XU Yi-lin ZHANG Shu-ping LANG Rong-gang Chi S. Zee LIU Pei-fang FU Li 2011Chinese Medical Journal2011,,12:31
8OsCERK1-Mediated Chitin Perception and Immune Signaling Requires Receptor-like Cytoplasmic Kinase 185 to Activate an MAPK Cascade in Rice显示文摘保存联系病原体的分子的模式(PAMP ) 例如几丁质,被在激活 mitogen 的蛋白质 kinase (MAPK ) 的快速的激活串联的宿主细胞表面和扳机定位的模式识别受体(PRR ) 察觉,它为植物抵抗被要求到病原体。然而,到在植物的 MAPK 激活的从 PAMP 感觉的直接连接仍然保持大部分未知。在这研究,我们发现联系 PRR 的像受体的细胞质的 kinase Oryza sativa RLCK185 播送到通过和 MAPK kinase kinase 的相互作用表明串联的 MAPK 的从 PAMP 受体 OsCERK1 的有免疫力的发信号, OsMAPKKK,它是 MAPK 串联的起始的 kinase。OsRLCK185 交往与并且 phosphorylates OsMAPKKK 的 C 终端规章的领域。phosphomimetic OsRLCK185 和 OsMAPKKK 的 Coexpression 在 Nicotiana benthamiana 叶子激活 MAPK3/6 phosphorylation。而且, OsMAPKKK 交往与并且 phosphorylates OsMKK4,关键 MAPK kinase 那 transduces 几丁质信号。OsMAPKKK 的 Overexpression 增加导致几丁质的 MAPK3/6 激活,而 OsMAPKKK 击倒的妥协导致几丁质的 MAPK3/6 激活和抵抗到米饭强风真菌。一起拿,我们的结果在米饭从房间表面几丁质感觉建议一条发信号 phospho 小径的存在到 MAPK 串联的细胞内部的激活。Chao Wang Gang Wang Chi Zhang Pinkuan Zhu Huiling Dai Nan Yu Zuhua He Ling Xu Ertao Wang 2017Molecular Plant2017,10,4:27
9Biostratigraphy and geography of the Ordovician-Silurian Lungmachi black shales in South China显示文摘Based on the new material of seven Ordovician-Silurian boundary sections investigated recently, together with previously published data, we analyze the temporal and spatial distributions of the Lungmachi black shales, a key petroleum source bed widely distributed in South China. The Lungmachi black shales range in age from the Normalograptus persculptus Biozone of the uppermost Ordovician to the Spirograptus guerichi Biozone of the lower Telychian, and ten graptolite biozones can be recognized within this unit. The basal and upper contacts of the Lungmachi black shales are diachronous. The basal contact ranges from the N. persculptus to the C. cyphus biozones, a span of five graptolite biozones over two stages. The upper contact ranges from the D. pectinatus-M. argenteus Biozone to the Spirograptus guerichi Biozone, which spans four graptolite biozones over two stages. The Yichang Uplift resulted in the formation of the Hunan-Hubei Submarine High in the border area of Hubei, Hunan, and Chongqing. This is supported by a break in sedimentation in this area spanning all or part of the Hirnantian, and in many areas extending into the underlying Katian and overlying Rhuddanian. Comparison of the distribution of the Katian to Rhuddanian strata in this area indicates a growth and subsequent reduction in area of the Hunan-Hubei Submarine High particularly in the Hirnantian to early Rhuddanian. This may partly represent the influence of the process of formation and melting of ice sheet in Ordovician South Pole and consequent sea level change.FAN JunXuan Michael J MELCHIN CHEN Xu WANG Yi ZHANG YuanDong CHEN Qing CHI ZhaoLi CHEN Feng 2011Science China Earth Sciences2011,54,12:24
10Shikonin induces glioma cell necroptosis in vitro by ROS overproduction and promoting RIP1/RIP3 necrosome formation显示文摘Bin LU Xu GONG Zong-qi WANG Ye DING Chen WANG Tian-fei LUO Mei-hua PIAO Fan-kai MENG Guang-fan CHI Yi-nan LUO Peng-fei GE 2017Acta Pharmacologica Sinica2017,38,11:22
11Curative effect of heat-sensitive moxibustion on chronic persistent asthma: a multicenter randomized controlled trial显示文摘OBJECTIVE:To compare the curative effects of heat-sensitive moxibustion with conventional drugs on chronic persistent asthma and seek a valuable therapy to replaceWestern Medicine.METHODS:The participants in this multi-center,randomized,and controlled study were randomly divided into two groups:group A(n=144),treated with heat-sensitive moxibustion(50 sessions)and group B(n=144),treated with Seretide(salmeterol50μg/fluticasone 250μg,twice a day).The scores of asthma control test(ACT),forced expiratory volume in 1 second(FEV1),peak expiratory flow(PEF),and attack frequency were measured after 15,30,60,and 90 days of treatment.Patients followed up3 and 6 months after treatment.RESULTS:There was a significant difference(P=0.0002)in the ACT score and lung function between the two groups after 3 months of treatment and(P=0.000 03)during the follow-up visits.In addition,heat-sensitive moxibustion reduced attack frequency in the period from inclusion to the6-month follow-up visit.CONCLUSION:This study shows that heat-sensitive moxibustion may have a comparable curative effect toSeretide(salmeterol/fluticasone)on asthma.Rixin Chen Mingren Chen Jun Xiong Zhenhai Chi B0 Zhang Ning Tian Zhenhua Xu Tangfa Zhang Wanyao Li Wei Zhang Xiaofeng Rong Zhen Wang Gang Sun Baohe Ge Guoxiong Yu Nanchang Song 2013Journal of Traditional Chinese Medicine2013,33,5:20
12Soil salt leaching under different irrigation regimes: HYDRUS-1D modelling and analysis显示文摘Field irrigation experiments were conducted in the Hetao Irrigation District of Inner Mongolia,China,to study the effects of irrigation regimes on salt leaching in the soil profile.The data were used to calibrate and validate the HYDRUS-1D model.The results demonstrated that the model can accurately simulate the water and salt dynamics in the soil profile.The HYDRUS-1D model was then used to simulate 15 distinct irrigation scenarios.The results of the simulation indicated that irrigation amount did not have a significant effect on soil water storage but that increases in irrigation amount could accelerate salt leaching.However,when the irrigation amount was larger than 20 cm,the acceleration was not obvious.Compared with irrigating only once,intermittent irrigation had a better effect on increasing soil water storage and salt leaching,but excessive irrigation times and intervals did not improve salt leaching.In addition,we found that the irrigation regime of 20 cm,irrigated twice at 1-d intervals,might significantly increase salt leaching in the plough layer and decrease the risks of deep seepage and groundwater contamination.WenZhi ZENG Chi XU JingWei WU JieSheng HUANG 2014Journal of Arid Land2014,6,1:20
13Repurposing vitamin D for treatment of human malignancies via targeting tumor microenvironment显示文摘Tumor cells along with a small proportion of cancer stem cells exist in a stromal microenvironment consisting of vasculature, cancer-associated fibroblasts, immune cells and extracellular components.Recent epidemiological and clinical studies strongly support that vitamin D supplementation is associated with reduced cancer risk and favorable prognosis. Experimental results suggest that vitamin D not only suppresses cancer cells, but also regulates tumor microenvironment to facilitate tumor repression. In this review, we have outlined the current knowledge on epidemiological studies and clinical trials of vitamin D. Notably, wesummarized and discussed the anticancer action of vitamin D in cancer cells, cancer stem cells and stroma cells in tumor microenvironment, providing a better understanding of the role of vitamin D in cancer. We presently re-propose vitamin D to be a novel and economical anticancer agent.Xu Wu Wei Hu Lan Lu Yueshui Zhao Yejiang Zhou Zhangang Xiao Lin Zhang Hanyu Zhang Xiaobing Li Wanping Li Shengpeng Wang Chi Hin Cho Jing Shen Mingxing Li 2019Acta Pharmaceutica Sinica B2019,9,2:20
14Electromyographic monitoring of facial nerve under different levels of neuromuscular blockade during middle ear microsurgery显示文摘唤起的 electromyography (EMG ) 经常是的背景过去常识别面部神经以便在手术期间阻止它的损坏。部分神经与肌的封锁(NMB ) 被建议了赞成 EMG 活动并且保险病人的安全。学习是由评估在面部 EMG 回答和外部 NMB 之间的关系决定 NMB 通信员的足够的水平到理智的面部神经鉴定的这的目的在中耳 surgeries.Methods 美容神经期间铺平监视的唤起的 EMG 和 NMB 在经历了 tympanoplasty 的 40 个病人同时被执行。面部 electromyographic 回答被针电极的插入在面部神经上在电的刺激以后记录进 orbicularis oris 和 orbicularis oculi 肌肉。 NMB 与小鱼际肌肉的家客观地被观察在尺骨的神经的电的刺激以后抽动,并且封锁的紧张在 0 的层次被调整,25%,50%,75%,90%,并且100%分别地与 Rocuronium 的增加的静脉内的注入(肌肉弛缓) .Results 所有在NMB 50%的层次病人有可检测的 EMG 回答。四没在 NMB 75% 的层次从四十个病人有 EMG 反应。当线性否定关联在 EMG 振幅和 NMB levels.Conclusions 之间是在场的时,重要线性积极关联在刺激阀值和 NMB 层次之间是在场的当时,经由面部 electromyographic 回答监视的面部神经能被获得 intraoperative 部分神经与肌的封锁被导致提供病人的足够的固定。50% NMB 应该为面部神经基于关联的关系在 otologic microsurgery 监视被看作麻药管理的选择。CAI Yi-rong XU Jing CHEN Lian-hua CHI Fang-lu 2009Chinese Medical Journal2009,,3:19
15Effects of rosuvastatin on the production and activation of matrix metalloproteinase-2 and migration of cultured rat vascular smooth muscle cells induced by homocysteine显示文摘Objective:To test the influence of homocysteine on the production and activation of matrix metalloproteinase-2 (MMP-2) and tissue inhibitors of matrix metalloproteinase-2 (TIMP-2) and on cell migration of cultured rat vascular smooth muscle cells (VSMCs). Also, to explore whether rosuvastatin can alter the abnormal secretion and activation of MMP-2 and TIMP-2 and migration of VSMCs induced by homocysteine. Methods:Rat VSMCs were incubated with different concentrations of homocysteine (50-5 000 μmol/L). Western blotting and gelatin zymography were used to investigate the expressions and activities of MMP-2 and TIMP-2 in VSMCs in culture medium when induced with homocysteine for 24, 48, and 72 h. Transwell chambers were employed to test the migratory ability of VSMCs when incubated with homocysteine for 48 h. Different concentrations of rosuvastatin (10-9-10-5 mol/L) were added when VSMCs were induced with 1 000 μmol/L homocysteine. The expressions and activities of MMP-2 and TIMP-2 were examined after incubating for 24, 48, and 72 h, and the migration of VSMCs was also examined after incubating for 48 h. Results:Homocysteine (50-1 000 μmol/L) increased the production and activation of MMP-2 and expression of TIMP-2 in a dose-dependent manner. However, when incubated with 5 000 μmol/L homocysteine, the expression of MMP-2 was up-regulated, but its activity was down-regulated. Increased homocysteine-induced production and activation of MMP-2 were reduced by rosuvastatin in a dose-dependent manner whereas secretion of TIMP-2 was not significantly altered by rosuvastatin. Homocysteine (50-5 000 μmol/L) stimulated the migration of VSMCs in a dose-dependent manner, but this effect was eliminated by rosuvastatin. Conclusions:Homocysteine (50-1 000 μmol/L) significantly increased the production and activation of MMP-2, the expression of TIMP-2, and the migration of VSMCs in a dose-dependent manner. Additional extracellular rosuvastatin can decrease the excessive expression and activation of MMP-2 and abnormal migration of VSMCs induced by homocysteine.Ya-fei SHI Ju-fang CHI Wei-liang TANG Fu-kang XU Long-bin LIU Zheng JI Hai-tao LV Hang-yuan GUO 2013Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2013,14,8:18
16Circular RNA PIP5K1A promotes colon cancer development through inhibiting mi R-1273a显示文摘BACKGROUND Circular RNAs (circRNAs) are considered to be highly stable due to the closed structure, which are predominately correlated with the development and progression of a wide variety of cancers. Colon cancer is one of the most common malignancies worldwide. A recent study demonstrated the upregulated expression of circPIP5K1A in non-small cell lung cancer. However, few studies have investigated the relationship between circ_0014130 level and colon cancer. Therefore, elucidating the underlying mechanisms of circPIP5K1A’s role may help with the identification of novel diagnostic and therapeutic targets for colon cancer. AIM To investigate the status of circPIP5K1A in colon cancers and its effects on the modulation of cancer development. METHODS The expression level of circPIP5K1A in tissue and serum samples from colon cancer patients, as well as human colonic cancer cell lines was detected by realtime quantitative reverse transcription-polymerase chain reaction. Following the transfection of specifically synthesized small interfering RNA (siRNA) into colon cell lines, we used Hoechst staining assay to measure the ratio of cell death in the absence of circPIP5K1A. Moreover, we also used the Transwell assay to assess the migratory function of colon cells overexpressing circPIP5K1A. Additionally, we employed a series of bioinformatics prediction programs to predict the potential of circPIP5K1A-targeted miRNAs and mRNAs. The miR-1273a vector was constructed, and then transfected with or without circPIP5K1A vector into colon cancer cells. Afterwards, the expression of activator protein 1 (AP-1), interferon regulating factor 4 (IRF-4), caudal type homeobox 2 (CDX-2), and zinc finger of the cerebellum 1 (Zic-1) was detected by western blotting. RESULTS CircPIP5K1A was significantly upregulated in colon cancer tissue relative to their adjacent normal tissues. Knockdown of circPIP5K1A in colon cancer cells impaired cell viability and suppressed cell invasion and migration, while enforced expression of circPIP5K1A exhibited the opposite effects on cell migration. Bioinformatics prediction program predicted that the association of circPIP5K1A with miR-1273a, as well as AP-1, IRF-4, CDX-2, and Zic-1. Subsequent studies showed that overexpression of circPIP5K1A augmented the expression of AP-1 but attenuated the expression of IRF-4, CDX-2, and Zic-1. Reciprocally, overexpression of miR-1273a abrogated the oncogenic function of circPIP5K1A in colon cancers. CONCLUSION Overall, our data demonstrate the oncogenic role of circPIP5K1A-miR-1273a axis in regulation of colon cancer development, which provides a novel insights into colon cancer pathogenesis.Qu Zhang Chi Zhang Jian-Xin Ma Hui Ren Yu Sun Jiao-Zhen Xu 2019World Journal of Gastroenterology2019,25,35:18
17Lapatinib plus capecitabine in treating HER2-positive advanced breast cancer:efficacy,safety,and biomarker results from Chinese patients显示文摘Overexpression of human epidermal growth factor receptor-2(HER2) in metastatic breast cancer(MBC) is associated with poor prognosis.This single-arm open-label trial(EGF109491;NCT00508274) was designed to confirm the efficacy and safety of lapatinib in combination with capecitabine in 52 heavily pretreated Chinese patients with HER2-positive MBC.The primary endpoint was clinical benefit rate(CBR).Secondary endpoints included progression-free survival(PFS),time to response(TTR),duration of response(DoR),central nervous system(CNS) as first site of relapse,and safety.The results showed that there were 23 patients with partial responses and 7 patients with stable disease,resulting in a CBR of 57.7%.The median PFS was 6.34 months(95% confidence interval,4.93-9.82 months).The median TTR and DoR were 4.07 months(range,0.03-14.78 months) and 6.93 months(range,1.45-9.72 months),respectively.Thirteen(25.0%) patients had new lesions as disease progression.Among them,2(3.8%) patients had CNS disease reported as the first relapse.The most common toxicities were palmar-plantar erythrodysesthesia(59.6%),diarrhea(48.1%),rash(48.1%),hyperbilirubinemia(34.6%),and fatigue(30.8%).Exploratory analyses of oncogenic mutations of PIK3CA suggested that of 38 patients providing a tumor sample,baseline PIK3CA mutation status was not associated with CBR(P = 0.639) or PFS(P = 0.989).These data confirm that the lapatinib plus capecitabine combination is an effective and well-tolerated treatment option for Chinese women with heavily pretreated MBC,irrespective of PIK3CA status.Bing-He Xu Ze-Fei Jiang Daniel Chua Zhi-Min Shao Rong-Cheng Luo Xiao-Jia Wang Dong-Geng Liu Winnie Yeo Shi-Ying Yu Beth Newstat Alka Preston Anne-Marie Martin Hai-Dong Chi Li wang 2011Chinese Journal of Cancer2011,30,5:17
18NH_3-SCR denitration catalyst performance over vanadium–titanium with the addition of Ce and Sb显示文摘Selective catalytic reduction technology using NH3 as a reducing agent(NH3-SCR) is an effective control method to remove nitrogen oxides. TiO2-supported vanadium oxide catalysts with different levels of Ce and Sb modification were prepared by an impregnation method and were characterized by X-ray diffractometer(XRD), Brunauer–Emmett–Teller(BET), Transmission electron microscopy(TEM), Fourier transform infrared spectroscopy(FT-IR), UV–Vis diffuse reflectance spectroscopy(UV–Vis DRS), Raman and Hydrogen temperature-programmed reduction(H2-TPR). The catalytic activities of V5 CexS by/TiO2 catalysts for denitration were investigated in a fixed bed flow microreactor. The results showed that cerium, vanadium and antimony oxide as the active components were well dispersed on TiO2, and the catalysts exhibited a large number of d–d electronic transitions, which were helpful to strengthen SCR reactivity. The V5 CexS by/TiO2 catalysts exhibited a good low temperature NH3-SCR catalytic activity. In the temperature range of 210 to 400℃, the V5 CexS by/TiO2 catalysts gave NO conversion rates above 90%. For the best V5Ce35Sb2/TiO2 catalyst, at a reaction temperature of 210℃, the NO conversion rate had already reached 90%. The catalysts had different catalytic activity with different Ce loadings. With the increase of Ce loading, the NO conversion rate also increased.Chi Xu Jian Liu Zhen Zhao Fei Yu Kai Cheng Yuechang Wei Aijun Duan Guiyuan Jiang 2015Journal of Environmental Sciences2015,27,5:17
19Epigastric pain syndrome: What can traditional Chinese medicine do? A randomized controlled trial of Biling Weitong Granules显示文摘BACKGROUND Recent research suggests that although prokinetic agents,acid suppressors,and radical treatment for Helicobacter pylori infection may be effective in patients with functional dyspepsia(FD),a large proportion of patients still fail to respond to these treatments or may suffer from severe adverse reactions.Many traditional Chinese medicinal herbs can regulate the status of the entire body and have special advantages in the treatment of functional diseases.The present study was designed to verify the efficacy of Biling Weitong Granules(BLWTG),a traditional Chinese medicinal herbal compound formula,in alleviating epigastric pain syndrome(EPS)in FD patients,in an attempt to provide an effective prescription for the clinical treatment of this disease.AIM To evaluate the clinical efficacy and safety of BLWTG in treating EPS in patients with FD.METHODS In this multicenter,stratified,randomized,double-blind,placebo-controlled,parallel group clinical trial,eligible patients were randomized into the BLWTG and placebo groups who were treated for 6 wk.Efficacy indicators including the severity and frequency of EPS and the time to pain resolution and safety indicators including adverse events were observed and compared.RESULTS The baseline demographic data and clinical characteristics,such as epigastric pain symptoms,pain intensity,and frequency of attacks,were matched between the two groups before randomization.After 6 wk of treatment and after the center effect was eliminated,the epigastric pain was significantly improved in 28.33%and 85.59%of the patients in the placebo and BLWTG groups,respectively(P<0.05).At 6 wk,the resolution rate of epigastric pain was 15%and 69.49%in the placebo and BLWTG groups,respectively(P<0.05).The differences of total FD clinical score between these two groups were significant(P<0.05)at 2,4,and 6 wk(P<0.05).The scores of each item and the total score in the Functional Digestive Disorders Quality of Life Questionnaire showed significant differences between the two groups at 6 wk after both the center and interaction effects were eliminated(P<0.05).There was no significant difference in the incidence of adverse events between the two groups,and no serious adverse event was noted during the observation.CONCLUSION Compared with placebo,BLWTG markedly improved EPS in FD patients without causing serious adverse reactions.Yan-Dong Wen Fang Lu Ying-Pan Zhao Ping Wang Qian Yang Jun-Xiang Li Hui-Zhen Li Li-Li Chi Zheng-Hua Zhou Yan-Ping Tang Jin-Kang Xu Yang Zhao Xu-Dong Tang 2020World Journal of Gastroenterology2020,26,28:16
20Flame retardant polyamide 6 by in situ polymerization of ε-caprolactam in the presence of melamine derivatives显示文摘An improved method for preparing melamine cyanurate (MCA) based flame retardant polyamide 6 (FRPA6) materials has been proposed. This processing method, i.e., improved in situ polymerization, was used to synthesize flame retardant PA6. In situ formed MCA nanoparticles were supposed to be linked to PA6 chains in the e-caprolactam hydrolytic polymerization system to obtain star- type polymers for the first time. Through TEM photographs, it can be found that the in situ formed MCA nanoparticles with diametric size of less than 50 nm, are nanoscaled, highly uniformly dispersed in the PA6 matrix. Synthesized ?ame retardant PA6 have good fire performance which can achieve UL-94 V-0 rating at 1.6 mm thickness with the presence of 7.34 wt.% MCA in the matrix.Zhi Yong Wu Wei Xu Jin Kui Xia Yao Chi Liu Qian Xin Wu Wei Jian Xu 2008Chinese Chemical Letters2008,19,2:15
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