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1Establishment of cell clones with different metastatic potential from the metastatic hepatocellular carcinoma cell line MHCC97显示文摘ALM To establish clone cells with different metastatic potential for the study of metastasis-related mechanisms. METHODS Cloning procedure was performed on parental hepatocellular carcinoma (HCC) cell line MHCC97. andbiological characteristics of the target clones selected by in vivo screening were studied.``RESULTS Two clones with high MHCC97-H and IowMHCC9--L1 metastatic potential were isolated from theparent cell line. Compared with MHCC97-L. MHCC97-H hadsmaller cell size average cell diameter 43 um vs 50 μmand faster in vitro and in vivo growth rate tumor celldoubling time was 34.2 h vs 60.0 h. The main ranges ofchromosomes were 5.5 58 in MHCC97-H and 57 62 inMHCC97-L. Boyden chamber in vitro invasion assay demonstrated that the number of penetrating cells through the artificial basement membrane was 137.5 - 11 .0) cellsfield for MHC_C99--H vs 17.7 - 6.3) field for MHCC97-L.The proportions of cells in GO Gl phase. S phase, and G_ M phase for MHCC97-H MHCC97-L were 0.56 6.65.0.28 0.25 and 0.l6 0.10, respectively, as measured by flow cytometry. The serum AFP levels in nude mice 5 wk after orthotopic implantation of tumor tissue were ( 24666 μg. L for MHCC97-H and (91- 66) μg' L 1 for MHCC97L. The pulmonary metastatic rate was 100% (10-10) vs40% 4- 10).``CONCLUSION Two clones of the same genetic background but with different biological behaviors were established, which could be valuable models for investigation on HCC metastasis.Yan Li Zhao-You Tang Sheng-Long Ye Yin-Kun Liu Jie Chen Qiong Xue Jun Chen Dong-Mei Gao Wei-Hua Bao Liver Cancer Institute and Zhongshan Hospital of Fudan University (Former Liver Cancer Institute of Shanghai Medical University),Shanghai 200032,China 2001World Journal of Gastroenterology2001,7,5:111
2Sugar Input, Metabolism, and Signaling Mediated by Invertase: Roles in Development, Yield Potential, and Response to Drought and Heat显示文摘转化酶(INV ) 水解蔗糖进在主要新陈代谢和植物开发的葡萄糖和果糖的、从而玩的关键角色。基于他们的 pH optima 和亚 cellular 地点, INV 被分成房间墙,细胞质,并且 vacuolar 亚群,分别地作为 CWIN, CIN,和 VIN 缩短了。在植物开发和庄稼生产率的 INV 的宽广重要性和含意吸引了庞大的兴趣从多重观点检验 INV 功能和规定。这里,我们考察在最后二十年在这个区域使进展激动的一些,集中于( 1 )在在translational以后的植物开发和规定的 INV 的新或新兴的角色通过和禁止者的相互作用铺平,( 2 )在 调停INV 的糖发信号之间的串音和开发的神经质的控制,并且( 3 )对种子和水果上的干旱和热压力和他们的影响的调停糖、 调停INV 的回答设定。最后,我们讨论为解开从这新进步和轮廓未来方向产生的主要问题在植物生物工学和农业位于调停 INV 的植物开发和他们的潜在的应用下面的机制。Yong-Ling Ruan Ye Jin Yue-Jian Yang Guo-Jing Li John S. Boyer 2010Molecular Plant2010,3,6:98
3The first offshore natural gas hydrate production test in South China Sea显示文摘Natural gas hydrates (NGH)is one of key future clean energy resources.Its industrialized development will help remit the huge demand of global natural gas,relieve the increasing pressure of the environment, and play a vital role in the green sustainable growth of human societies.Based on nearly two decades' studying on the reservoir characteristics in the South China Sea (SCS)and the knowledge of reservoir system,the China Geological Survey (CGS)conducted the first production test on an optimal target selected in Shenhu area SCS in 2017.Guided by the 'three-phase control'exploitation theory which focused on formation stabilization,technologies such as formation fluid extraction,well drilling and completing, reservoir stimulating,sand controlling,environmental monitoring,monitoring and preventing of secondary formation of hydrates were applied.The test lasted for 60 days from May 10^th when starting to pump, drop pressure and ignite to well killing on July 9^th,with gas production of 3.09×10^5 m^3 in total,which is a world record with the longest continuous duration of gas production and maximal gas yield.This successful test brings a significant breakthrough on safety control of NGH production.Jin-fa Li Jian-liang Ye Xu-wen Qin Hai-jun Qiu Neng-you Wu Hai-long Lu Wen-wei Xie Jing-an Lu Fei Peng Zhen-qiang Xu Cheng Lu Zeng-gui Kuang Jian-gong Wei Qian-yong Liang Hong-feng Lu Bei-bei Kou 2018China Geology2018,1,1:117
4Chinese consensus guidelines for diagnosis and management of gastrointestinal stromal tumor显示文摘In order to further promote the standardization of diagnosis and treatment of gastrointestinal stromal tumor(GIST) in China, the members of Chinese Society of Clinical Oncology(CSCO) Expert Committee on GIST thoroughly discussed the key contents of the consensus guidelines, and voted on the controversial issue. In final, the Chinese consensus guidelines for the diagnosis and management of GIST(2017 edition) was formed on the basis of 2013 edition consensus guidelines, which is hereby announced. The consensus included the pathological diagnosis,recurrence risk classification evaluation, targeted agent therapy, surgery and principles of surveillance of GIST.jian li yingjiang ye jian wang bo zhang shukui qin yingqiang shi yulong he xiaobo liang xiufeng liu ye zhou xin wu xinhua zhang ming wang zhidong gao tianlong lin hui cao lin shen 2017Chinese Journal of Cancer Research2017,29,4:104
5基于网络数据文本分析的目的地形象维度分异研究——以南京为例显示文摘随着Web2.0技术的发展,网络文本已成为目的地形象研究的重要数据来源。本文选取南京作为案例地,以马蜂窝游客对南京的10 077条在线评论文本为数据,运用网络大数据文本挖掘法、词频统计法和共现网络法,分析得出目的地形象维度重要性存在差异,旅游吸引物是第一层次,公共基础设施是第二层次,休闲和娱乐、旅游环境和地方氛围是第三层次,旅游基础设施是第四层次。其次,南京感知形象中突出的认知成分源于旅游吸引物和公共基础设施维度的感知,而情感形象为正面,并产生了一定的意动形象,形成了网络口碑效应。此外,南京整体形象主要源于旅游吸引物和公共基础设施维度的感知,进一步验证了感知维度的重要性存在差异。本文验证了旅游形象的相关理论,丰富了旅游大数据研究方法,并可为南京旅游形象建设和发展提供科学依据。徐菲菲 剌利青 Ye Feng 2018资源科学2018,40,7:88
6A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus(2019-nCoV) infected pneumonia(standard version)显示文摘In December 2019, a new type viral pneumonia cases occurred in Wuhan, Hubei Province;and then named '2019 novel coronavirus(2019-nCoV)' by the World Health Organization(WHO) on 12 January 2020. For it is a never been experienced respiratory disease before and with infection ability widely and quickly, it attracted the world’s attention but without treatment and control manual. For the request from frontline clinicians and public health professionals of 2019-nCoV infected pneumonia management, an evidence-based guideline urgently needs to be developed. Therefore, we drafted this guideline according to the rapid advice guidelines methodology and general rules of WHO guideline development;we also added the first-hand management data of Zhongnan Hospital of Wuhan University. This guideline includes the guideline methodology, epidemiological characteristics, disease screening and population prevention, diagnosis, treatment and control(including traditional Chinese Medicine), nosocomial infection prevention and control, and disease nursing of the 2019-nCoV. Moreover, we also provide a whole process of a successful treatment case of the severe 2019-nCoV infected pneumonia and experience and lessons of hospital rescue for 2019-nCoV infections. This rapid advice guideline is suitable for the first frontline doctors and nurses, managers of hospitals and healthcare sections, community residents, public health persons, relevant researchers, and all person who are interested in the 2019-nCoV.Ying-Hui Jin Lin Cai Zhen-Shun Cheng Hong Cheng Tong Deng Yi-Pin Fan Cheng Fang Di Huang Lu-Qi Huang Qiao Huang Yong Han Bo Hu Fen Hu Bing-Hui Li Yi-Rong Li Ke Liang Li-Kai Lin Li-Sha Luo Jing Ma Lin-Lu Ma Zhi-Yong Peng Yun-Bao Pan Zhen-Yu Pan Xue-Qun Ren Hui-Min Sun Ying Wang Yun-Yun Wang Hong Weng Chao-Jie Wei Dong-Fang Wu Jian Xia Yong Xiong Hai-Bo Xu Xiao-Mei Yao Yu-Feng Yuan Tai-Sheng Ye Xiao-Chun Zhang Ying-Wen Zhang Yin-Gao Zhang Hua-Min Zhang Yan Zhao Ming-Juan Zhao Hao Zi Xian-Tao Zeng Yong-Yan Wang Xing-Huan Wang 2020Military Medical Research2020,7,1:161
7Towards 6G wireless communication networks:vision,enabling technologies,and new paradigm shifts显示文摘The fifth generation(5G)wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized,such as mass connectivity,ultra-reliability,and guaranteed low latency.However,5G will not meet all requirements of the future in 2030 and beyond,and sixth generation(6G)wireless communication networks are expected to provide global coverage,enhanced spectral/energy/cost efficiency,better intelligence level and security,etc.To meet these requirements,6G networks will rely on new enabling technologies,i.e.,air interface and transmission technologies and novel network architecture,such as waveform design,multiple access,channel coding schemes,multi-antenna technologies,network slicing,cell-free architecture,and cloud/fog/edge computing.Our vision on 6G is that it will have four new paradigm shifts.First,to satisfy the requirement of global coverage,6G will not be limited to terrestrial communication networks,which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle(UAV)communication networks,thus achieving a space-airground-sea integrated communication network.Second,all spectra will be fully explored to further increase data rates and connection density,including the sub-6GHz,millimeter wave(mmWave),terahertz(THz),and optical frequency bands.Third,facing the big datasets generated by the use of extremely heterogeneous networks,diverse communication scenarios,large numbers of antennas,wide bandwidths,and new service requirements,6G networks will enable a new range of smart applications with the aid of artificial intelligence(AI)and big data technologies.Fourth,network security will have to be strengthened when developing 6G networks.This article provides a comprehensive survey of recent advances and future trends in these four aspects.Clearly,6G with additional technical requirements beyond those of 5G will enable faster and further communications to the extent that the boundary between physical and cyber worlds disappears.Xiaohu YOU Cheng-Xiang WANG Jie HUANG Xiqi GAO Zaichen ZHANG Mao WANG Yongming HUANG Chuan ZHANG Yanxiang JIANG Jiaheng WANG Min ZHU Bin SHENG Dongming WANG Zhiwen PAN Pengcheng ZHU Yang YANG Zening LIU Ping ZHANG Xiaofeng TAO Shaoqian LI Zhi CHEN Xinying MA Chih-Lin I Shuangfeng HAN Ke LI Chengkang PAN Zhimin ZHENG Lajos HANZO Xuemin(Sherman)SHEN Yingjie Jay GUO Zhiguo DING Harald HAAS Wen TONG Peiying ZHU Ganghua YANG Jun WANG Erik GLARSSON Hien Quoc NGO Wei HONG Haiming WANG Debin HOU Jixin CHEN Zhe CHEN Zhangcheng HAO Geoffrey Ye LI Rahim TAFAZOLLI Yue GAO HVincent POOR Gerhard P.FETTWEIS Ying-Chang LIANG 2021Science China(Information Sciences)2021,64,1:122
8Multimodality treatment in hepatocellular carcinoma patients with tumor thrombi in portal vein显示文摘AIM To compare the therapeutic effect andsignificances of multimodality treatment forhepatocellular carcinoma (HCC) with tumorthrombi in portal vein (PVTT).METHODS HCC patients (n = 147) with tumortrombi in the main portal vein or the first branchof portal vein were divided into four groups bythe several therapeutic methods. There wereconservative treatment group in 18 out ofpatients (group A); and hepatic artery ligation(HAL) and/or hepatic artery infusion (HAl)group in 18 patients (group B), in whompostoberative chemoembolization was doneperiodically; group of removal of HCC with PVTTin 79 (group C) and group of transcatheterhepatic arterial chemoembolization (TACE) orHAl and/or portal vein infusion (PVI) afteroperation in 32 (group D).RESULTS The median survival period was 12months in our series and the 1-, 3-, and 5-yearsurvival rates were 44.3%, 24.5% and 15.2%,respectively. The median survival times were 2,5, 12 and 16 months in group A, B, C and D,respectively. The 1-, 3- and 5-year survival rateswere 5.6%, 0% and 0% in group A; 22.2%,5.6% and 0% in group B; 53.9%, 26.9% and16.6% in group C; 79.3%, 38.9% and 26.8% ingroup D, respectively. Significant differenceappeared in the survival rates among the groups(P<0.05).CONCLUSION Hepatic resection with removalof tumor thrombi and HCC should increase thecurative effects and be encouraged for theprolongation of life span and quality of life forHCC patients with PVTT, whereas the besttherapeutic method for HCC with PVTT is withregional hepatic chemotherapy orchemoemblization after hepatic resection withremoval of tumor thrombi.Jia Fan Zhi Quan Wu Zhao You Tang Jian Zhou Shuang Jian Qiu Zeng Chen Ma Xin Da Zhou Sheng Long Ye Liver Cancer Institute, Zhongshan Hospital, Fudan University Medical Center (Former Shanghai University), 136 Yixueyuan Road, Shanghai 200032, China 2001World Journal of Gastroenterology2001,7,1:80
9Prevalence 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
10Suppression of tumorigenesis by human mesenchymal stem cells in a hepatoma model显示文摘人的间充质的干细胞(hMSCs ) 装家到肿瘤地点并且禁止肿瘤细胞的生长。很少对内在的分子的机制被知道连接 hMSCs 到肿瘤房间的指向的抑制。在这研究,我们从 hMSCs 用一个动物移植模型,一个合作文化系统和调节媒介在二根人的 hepatoma 房间线(H7402 和 HepG2 ) 上调查了 hMSCs 的效果。当 SCID 老鼠与 H7402 细胞和 Z3 hMSCs 的一个相等的数字被注射时,动物移植研究证明肿瘤形成的潜伏的时间被延长并且肿瘤尺寸更小。当 co 有教养时与 Z3 房间, H7402 细胞增殖减少了,增加的 apoptosis,和 Bcl-2 的表示, c-Myc,原子抗原(PCNA ) 和 survivin 低是的增殖的房间调整了。在有调节媒介的处理源于 Z3 hMSC 文化以后, H4702 房间出现了减少的形成殖民地的能力和减少的增长。Immunoblot 分析证明 beta-catenin, Bcl-2, c-Myc, PCNA 和 survivin 表示是在 H7402 和 HepG2 房间调整的 down。总起来说,我们的调查结果证明 hMSCs 禁止 H7402 和 HepG2 人的肝癌症房间线的恶意的显型,它包括增长,形成殖民地的能力和 oncogene 表示试管内和体内。而且,我们的研究提供表明小径的 Wnt 可以在调停 hMSC 的指向和肿瘤房间抑制有一个角色的证据。Ling Qiao Zhili Xu Tiejun Zhao Zhigang Zhao Mingxia Shi Robert C Zhao Lihong Ye Xiaodong Zhang 2008Cell Research2008,18,4:68
11No-reflow protection and long-term efficacy for acute myocardial infarction with Tongxinluo: a randomized double-blind placebo- controlled multicenter clinical trial (ENLEAT Trial)显示文摘在紧急情况以后的背景没有回流为尖锐的圣片断举起的经皮的冠的干预(一种总线标准) 心肌的梗塞(STEMI ) 与严重预后有关。这研究的目的是评估 Tongxinluo 的功效,繁体中文药,在在为 219 个病人全部的 STEMI.Methods A 的紧急情况一种总线标准以后的没有回流和梗塞区域上(女性 31 ,14%)从九个临床的中心为 STEMI 经历紧急情况一种总线标准连续地在这被注册使随机化,双窗帘,控制安慰剂, multicenter 对2009年5月的从2007年1月的临床的试用。所有病人随机被划分成 Tongxinluo 在装载的组(n=108 ) 和控制组(n=111 ) ,给定的 Tongxinluo 或安慰剂在紧急情况一种总线标准前分别地为 2.08 g 开 asprin 300 mg 和 clopidogrel 300 mg 一起,然后为在一种总线标准以后的六个月三倍每日的 1.04 g。圣片断举起被心电图在住院记录并且 1, 2, 6, 12,在冠的汽球膨胀到以后的 24 个小时评估心肌的没有流动;在有静态的单个光子的排放的 STEMI 计算了断层摄影术( SPECT )决定在那里的梗塞 area.Results 不是在性别的统计意义以后, 17 个片断的心肌的灌注分数在白天 7 和白天 180 上被评估,年龄经过历史,胸疼痛, onset-to-reperfusion 时间, Killip 分类,就在一种总线标准前后的 TIMI 流动等级,在药治疗的任何一个在follow 在上面期间例如 statin ,-blocker,血管收缩素变换酶禁止者( ACEI )或血管收缩素 rece 在与在 6 个小时的控制组相比的 Tongxinluo 组有重要的圣片断恢复((-0.22????????????????????????????? 慰桴灯票楳汯杯捩污吗??ZHANG Hai-tao JIA Zhen-hua ZHANG Jian YE Zan-kai YANG Wei-xian TIAN Yue-qin JIA Xuan LI Wei WU Yi-ling YANG Yue-jin 2010Chinese Medical Journal2010,,20:69
12Mesozoic tectono-magmatic activities in South China:Retrospect and prospect显示文摘The South China Block was formed through the collisional orogeny between the Cathaysia Block and the Yangtze Block in the Early Neoproterozoic.The northern,western and southern sides of the South China Block were affected by disappearance of the Paleo-Tethyan Ocean during the Paleozoic.The southern and northern sides of the South China Block were respectively collided with the Indo-China Block and North China Block in the latest Paleozoic to form the basic framework of the Eastern China.The Eastern China has been affected by the westward subduction of the Pacific Plate since the Mesozoic.Therefore,the South China Block was influenced by the three major tectonic systems,leading to a superposed compound tectonics.The comparative study of the Mesozoic geology between the South China Block and its surrounding areas suggests that although the Mesozoic South China Block was adjacent to the subduction zone of the western Pacific,no juvenile arc-type crust has been found in the eastern margin.The main Mesozoic geology in South China is characterized by reworking of ancient continental margins to intracontinental tectonics,lacking oceanic arc basalts and continental arc andesites.Therefore,a key to understanding of the Mesozoic geology in South China is to determine the temporal-spatial distribution and tectonic evolution of Mesozoic magmatic rocks in this region.This paper presents a review on the tectonic evolution of the South China Block through summarizing the magmatic rock records from the compressional to extensional tectonic process with the transition at the three juncture zones and using the deformation and geophysic data from the deep part of the South China continental lithosphere.Our attempt is to promote the study of South China’s geology and to make it as a typical target for development of plate tectonic theory.MAO JianRen LI ZiLong YE HaiMin 2014Science China Earth Sciences2014,57,12:64
13WRKY transcription factors in plant responses to stresses显示文摘The WRKY gene family is among the largest families of transcription factors(TFs) in higher plants.By regulating the plant hormone signal transduction pathway,these TFs play critical roles in some plant processes in response to biotic and abiotic stress.Various bodies of research have demonstrated the important biological functions of WRKY TFs in plant response to different kinds of biotic and abiotic stresses and working mechanisms.However,very little summarization has been done to review their research progress.Not just important TFs function in plant response to biotic and abiotic stresses,WRKY also participates in carbohydrate synthesis,senescence,development,and secondary metabolites synthesis.WRKY proteins can bind to W-box(TGACC(A/T)) in the promoter of its target genes and activate or repress the expression of downstream genes to regulate their stress response.Moreover,WRKY proteins can interact with other TFs to regulate plant defensive responses.In the present review,we focus on the structural characteristics of WRKY TFs and the research progress on their functions in plant responses to a variety of stresses.Jingjing Jiang Shenghui Ma Nenghui Ye Ming Jiang Jiashu Cao Jianhua Zhang 2017Journal of Integrative Plant Biology2017,59,2:75
14Heart-type fatty acid binding protein (H-FABP) as a biomarker for acute myocardial injury and long-term post-ischemic prognosis显示文摘尖锐心肌的梗塞(AMI ) 是一个威胁生活的事件。甚至与及时处理,尖锐 ischemic 心肌的损害和随后的局部缺血灌注损害(IRI ) 能仍然是困难的问题处理。除了放射学并且另外的辅助考试,适用的心脏的 biomarkers 的实验室测试为这混乱监视的早诊断和结束也是必要的。心类型丰满的酸绑定蛋白质(H-FABP ) 主要在 cardiomyocytes 内存在,最近为心肌的损害作为潜在地有希望的 biomarker 出现了。在这评论,我们在对心肌的损害和 IRI 的评价讨论 H-FABP 的敏感和特性,特别在早阶段,和它与另外的通常使用的心脏的 biomarkers 比较的长期的预示的价值,包括肌球素( Mb ),心脏的 troponin 我( cTnI ),肌酸 kinase MB ( CK-MB ),C反应的蛋白质( CRP ),肝糖 phosphorylase isoenzyme BB ( GPBB ),和高敏感的心脏的 troponin T ( hs-cTnT )。有另外的 biomarkers 的 H-FABP 的联合申请的潜力和值也被讨论。最后, H-FABP 的前景被总结;几个技术问题被讨论在临床的实践便于 H-FABP 的更宽的申请。Xiao-dong YE Yi HE Sheng WANG Gordon T WONG Michael G IRWIN Zhengyuan XIA 2018Acta Pharmacologica Sinica2018,39,7:72
15Spectrum and antimicrobial resistance of common pathogenic bacteria isolated from patients with acute exacerbation of chronic obstructive pulmonary disease in mainland of China显示文摘YE Feng HE Li-xian CAI Bo-qiang WEN Fu-qiang CHEN Bai-yi Mangunnegoro Hadiarto CHEN Rong-chang YUAN Jin-ping SUN Hong-li 2013Chinese Medical Journal2013,,12:55
16Changes of NF-kB,p53,Bcl-2 and caspase in apoptosis induced by JTE-522 in human gastric adenocarcinoma cell line AGS cells:role of reactive oxygen species显示文摘AIM: To identify whether JTE-522 can induce apoptosis inAGS cells and ROS also involved in the process, and toinvestigate the changes in NF-kB, p53, bcl-2 and caspase in the apoptosis process.METHODS: Cell culture, MTT, Electromicroscopy, agarosegel electrophoresis, lucigenin, Western blot andelectrophoretic mobility shift assay (EMSA) analysis wereemployed to investigate the effect of JTE-522 on cellproliferation and apoptosis in AGS cells and relatedmolecular mechanisms.RESULTS: JTE-522 inhibited the growth of AGS cells andinduced the apoptosis. Lucigenin assay showed the generationof ROS in cells under incubation with JTE-522. The inc eareasedROS generation might contribute to the induction of AGS cellsto apoptosis. EMSA and Westem blot revealed that NF-kBactivity was almost completely inhibited by preventing thedegradation of IkBα. Additionally, by using Western blot weconfirmed that the level of bcl-2 was decreased, whereas p53showed a great increase following JTE-522 treatment. Theirchanges were in a dose-dependent manner.CONCLUSION: These findings suggest that reactive oxygenspecies, NF-kB, p53, bcl-2 and caspase-3 may play animportant role in the induction of apoptosis in AGS cellsafter treatment with JTE-522.Hong-Liang Li Xiao-Hong Li Yan-Qing L Chun-Ling Ye Xian-Da Ren,Department of Pharmacology,Jinan University Pharmacy College,Guangzhou 510632,Guangdong,China Dan-Dan Chen,Department of Cardiology,First Affiliated Hospital,Zhongshan University,Guangzhou 510089,Guangdong,China Hai-Wei Zhang,Department of Pathology,Jinan University Medical College,Guangzhou 510632,Guangdong,China 2002World Journal of Gastroenterology2002,8,3:58
17Autophagy and multidrug resistance in cancer显示文摘Multidrug resistance(MDR) occurs frequently after long-term chemotherapy, resulting in refractory cancer and tumor recurrence.Therefore, combatting MDR is an important issue. Autophagy, a self-degradative system, universally arises during the treatment of sensitive and MDR cancer. Autophagy can be a double-edged sword for MDR tumors: it participates in the development of MDR and protects cancer cells from chemotherapeutics but can also kill MDR cancer cells in which apoptosis pathways are inactive. Autophagy induced by anticancer drugs could also activate apoptosis signaling pathways in MDR cells, facilitating MDR reversal. Therefore, research on the regulation of autophagy to combat MDR is expanding and is becoming increasingly important. We summarize advanced studies of autophagy in MDR tumors, including the variable role of autophagy in MDR cancer cells.Ying-Jie Li Yu-He Lei Nan Yao Chen-Ran Wang Nan Hu Wen-Cai Ye Dong-Mei Zhang Zhe-Sheng Chen 2017Chinese Journal of Cancer2017,36,8:54
18Diagnosis, treatment, and prevention of 2019 novel coronavirus infection in children: experts' consensus statement显示文摘Since the outbreak of 2019 novel coronavirus infection (2019-nCoV) in Wuhan City,China,by January 30,2020,a total of 9692 confirmed cases and 15,238 suspected cases have been reported around 31 provinces or cities in China.Among the confirmed cases,1527 were severe cases,171 had recovered and been discharged at home,and 213 died.And among these cases,a total of 28 children aged from 1 month to 17 years have been reported in China.For standardizing prevention and management of 2019-nCoV infections in children,we called up an experts' committee to formulate this experts' consensus statement.This statement is based on the Novel Coronavirus Infection Pneumonia Diagnosis and Treatment Standards (the fourth edition) (National Health Committee) and other previous diagnosis and treatment strategies for pediatric virus infections.The present consensus statement summarizes current strategies on diagnosis,treatment,and prevention of 2019-nCoV infection in children.Kunling Shen Yonghong Yang Tianyou Wang Dongchi Zhao Yi Jiang Runming Jin Yuejie Zheng Baoping Xu Zhengde Xie Likai Lin Yunxiao Shang Xiaoxia Lu Sainan Shu Yan Bai Jikui Deng Min Lu Leping Ye Xuefeng Wang Yongyan Wang Liwei Gao 2020World Journal of Pediatrics2020,16,3:56
19Resveratrol provides neuroprotection by regulating the JAK2/STAT3/PI3K/AKT/mTOR pathway after stroke in rats显示文摘Ischemic stroke is a common disease with high mortality and morbidity worldwide.One of the important pathophysiological effects of ischemic stroke is apoptosis.A neuroprotective effect is defined as the inhibition of neuronal apoptosis to rescue or delay the infarction in the surviving ischemic penumbra.Resveratrol is a natural polyphenol that reportedly prevents cerebral ischemia injury by regulating the expression of PI3K/AKT/mTOR.Therefore,this study aimed to elucidate the neuroprotective effect of resveratrol on cerebral ischemia/reperfusion injury and to investigate the signaling pathways and mechanisms through which resveratrol regulates apoptosis in the ischemic penumbra.Rats were subjected to middle cerebral artery occlusion for 2 h followed by 24 h reperfusion.Cerebral infarct volume was measured using 2%TTC staining.TUNEL staining was conducted to evaluate neuronal apoptosis.Western blotting and immunohistochemistry were used to detect the proteins involved in the JAK2/STAT3/PI3K/AKT/mTOR pathway.The results suggested that resveratrol significantly improved neurological function,reduced cerebral infarct volume,decreased neuronal damage,and markedly attenuated neuronal apoptosis;these effects were attenuated by the inhibition of PI3K/AKT with LY294002 and JAK2/STAT3 with AG490.We also found that resveratrol significantly upregulated the expression of p-JAK2,p-STAT3,p-AKT,p-mTOR,and BCL-2 and downregulated expression of cleaved caspase-3 and BAX,which was partially reversed by LY294002 and AG490.These results suggested that resveratrol provides a neuroprotective effect against cerebral ischemia/reperfusion injury,which is partially mediated by the activation of JAK2/STAT3 and PI3K/AKT/mTOR.Resveratrol may indirectly upregulate the PI3K/AKT/mTOR pathway by activating JAK2/STAT3.Yongying Hou Ke Wang Weijun Wan Yue Cheng Xia Pu Xiufeng Ye 2018Genes & Diseases2018,5,3:60
20Transmission Dynamics of an Outbreak of the COVID-19 Delta Variant B.1.617.2——Guangdong Province,China,May-June 2021显示文摘On May 21,2021,a local case of coronavirus disease 2019(COVID-19)was confirmed in a 75-year-old woman(experienced onset of symptoms on May 18)in Liwan District,Guangzhou City,Guangdong Province,China.The number of infections has increased in the following 10 days and led to 5 generations of transmission.Meng Zhang Jianpeng Xiao Aiping Deng Yingtao Zhang Yali Zhuang Ting Hu Jiansen Li Hongwei Tu Bosheng Li Yan Zhou Jun Yuan Lei Luo Zimian Liang Youzhi Huang Guoqiang Ye Mingwei Cai Gongli Li Bo Yang Bin Xu Ximing Huang Yazun Cui Dongsheng Ren Yanping Zhang Min Kang Yan Li 2021China CDC weekly2021,3,27:51
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