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12018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents显示文摘Syncope belongs to the transient loss of consciousness(TLOC), characterized by a rapid onset, short duration, and spontaneous complete recovery. It is common in children and adolescents, accounting for 1% to 2% of emergency department visits.Recurrent syncope can seriously affect children's physical and mental health, learning ability and quality of life and sometimes cardiac syncope even poses a risk of sudden death. The present guideline for the diagnosis and treatment of syncope in children and adolescents was developed for guiding a better clinical management of pediatric syncope. Based on the globally recent development and the evidence-based data in China, 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents was jointly prepared by the Pediatric Cardiology Society, Chinese Pediatric Society, Chinese Medical Association(CMA)/Committee on Pediatric Syncope, Pediatricians Branch, Chinese Medical Doctor Association(CMDA)/Committee on Pediatric Cardiology, Chinese College of Cardiovascular Physicians, Chinese Medical Doctor Association(CMDA)/Pediatric Cardiology Society, Beijing Pediatric Society, Beijing Medical Association(BMA). The present guideline includes the underlying diseases of syncope in children and adolescents, the diagnostic procedures, methodology and clinical significance of standing test and headup tilt test, the clinical diagnosis vasovagal syncope, postural orthostatic tachycardia syndrome, orthostatic hypotension and orthostatic hypertension, and the treatment of syncope as well as follow-up.Cheng Wang Yaqi Li Ying Liao Hong Tian Min Huang Xiangyu Dong Lin Shi Jinghui Sun Hongfang Jin Junbao Du Jindou An Jie Chen Mingwu Chen Qi Chen Sun Chen Yonghong Chen Zhi Chen Adolphus Kai-tung Chau Junbao Du Zhongdong Du Junkai Duan Hongyu Duan Xiangyu Dong Lin Feng Lijun Fu Fangqi Gong Yonghao Gui Ling Han Zhenhui Han Bing He Zhixu He Xiufen Hu Yimin Hua Guoying Huang Min Huang Ping Huang Yujuan Huang Hongfang Jin Mei Jin Bo Li Fen Li Tao Li Xiaohui Li Xiaoyan Liu Yan Li Haitao Lv Tiewei Lv Zipu Li Luyi Ma Silin Pan Yusheng Pang Hua Peng Yuming Qin Jie Shen Lin Shi Kun Sun Jinghui Sun Hong Tian Jie Tian Cheng Wang Hong Wang Lei Wang Jinju Wang Wendi Wang Yuli Wang Rongzhou Wu Tianhe Xia Yanyan Xiao Chunhong Xie Yanlin Xing Zhenyu Xiong Baoyuan Xu Yi Xu Hui Yan Shiwei Yang Qijian Yi Xia Yu Xianyi Yu Yue Yuan Hongyan Zhang Huili Zhang Li Zhang Qingyou Zhang Xi Zhang Yanmin Zhang Zhiwei Zhang Cuifen Zhao Bin Zhou Hua Zhu 2018Science Bulletin2018,63,23:54
2Design and engineering implementation of non-supplementary fired compressed air energy storage system: TICC-500显示文摘The integration and accommodation of the wind and solar energy pose great challenges on today’s power system operation due to the intermittent nature and volatility of the wind and solar resources.High efficient large-scale electrical energy storage is one of the most effective and economical solutions to those problems.After the comprehensive review of the existing storage technologies,this paper proposes an overall design scheme for the Non-supplementary Fired Compressed Air Energy Storage(NFCAES)system,including system design,modeling and efficiency assessment,as well as protection and control.Especially,the design principles of the multistage regenerative,i.e.heat recovery system which is used to fully recycle and utilize the waste heat from compression are provided,so as the overall system efficiency evaluation method.This paper theoretically ascertains the storage decoupling rules in the potential and internal energy of molecular compressed air and reveals the conversion mechanism of gas,heat,power,electricity and other forms of energy.On this basis,a 500-k W physical simulation system of CAES system(TICC-500,Tsinghua-IPCCAS-CEPRI-CAES)is built,which passed a system-wide 420-k W load power generation test with less pollution and zero carbon emissions.Besides,the multi-form energy conversion of multi-stage regenerative CAES and storage efficiency is verified,especially its incomparable superiority in solving the uncertainty problem in wind and solar power generation.Finally,the propaganda and application scenario of the CAES system in China is introduced.MEI Sheng Wei WANG Jun Jie TIAN Fang CHEN Lai Jun XUE Xiao Dai LU Qiang ZHOU Yuan ZHOU Xiao Xin 2015Science China(Technological Sciences)2015,58,4:37
3Metastatic human hepatocellular carcinoma models in nude mice and cell line with metastatic potential显示文摘Metastatic human HCC model is needed for the studies on mechanism and intervention of metastatic recurrence. By using orthotopic implantation of histologically intact tissues of 30 surgical specimens, a patient like metastatic model of human HCC in nude mice (LCI-D20)and a Iow metastatic model of human HCC in nude mice LCI-D35 ) have been established. All mice with transplanted LCI-D20 tumors exhibited extremely high metastatic ability including spontaneous metastasis to liver, lungs, lymph nodes and peritoneal seeding.Remarkable difference was also found in expression of some of the invasiveness related genes and growth factors between the LCI-D20 and LCI-D35 tumors. PAI-Iincreased gradually following tumor progression in LCID20 model, and correlated with tumor size and AFP level,Phasic expression of tissue intercellular adhesion molecule-I in this model was also observed. Using corneal micropocket model, it was demonstrated that the vascular response induced by LCI-D20 tumor was stronger than that induced by LCI-D35 tumor. Similar report on metastatic human HCC model in nude mice and human HCC cell line with metastatic potential was rarely found in the literature. This LCI-D20 model has been widely used for the studies on intervention of metastasis, including antiangiogenesis, antisense approach, metalloproteinase inhibitor, differentiation inducer, etc. It is concluded that the establishment of metastatic human HCC model in nude mice and human HCC cell line with metastatic potential will provide important models for the in vivo and in vitro study of HCC invasiveness, angiogenesis as well as intervention of HCC recurrence.Zhao-You Tang Fan-Xian Sun Jian Tian Sheng-Long Ye Yin-Kun Liu Kang-Da Liu Qiong Xue Jie Chen Jing-Lin Xia Lun-Xiu Qin Hui-Chuan Sun Lu Wang Jian Zhou Yan Li Zeng-Chen Ma Xin-Da Zhou Zhi-Quan Wu Zhi-Ying Lin Bing-Hui Yang Liver Cancer Institute of Fudan University and Zhongshan Hospital,Shanghai 200032,China 2001World Journal of Gastroenterology2001,7,5:34
4Karyotype Stability and Unbiased Fractionation in the Paleo-Allotetraploid Cucurbita Genomes显示文摘Honghe Sun Shan WU Guoyu Zhang Chen Jiao Shaogui Guo Yi Ren Jie Zhang Haiying Zhang Guoyi Gong Zhangcai Jia Fan Zhang Jiaxing Tian William J. Lucas Jeff J. Doyle Haizhen Li Zhangjun Fei Yong Xu 2017Molecular Plant2017,10,10:33
5Crystal structure of the YTH domain of YTHDF2 reveals mechanism for recognition of N6-methyladenosine显示文摘Tingting Zhu Ian A Roundtree Ping Wang Xiao Wang Li Wang Chang Sun Yuan Tian Jie Li Chuan He Yanhui Xu 2014Cell Research2014,24,12:28
6Individualized prediction of perineural invasion in colorectal cancer: development and validation of a radiomics prediction model显示文摘Objective: To develop and validate a radiomics prediction model for individualized prediction of perineural invasion(PNI) in colorectal cancer(CRC).Methods: After computed tomography(CT) radiomics features extraction, a radiomics signature was constructed in derivation cohort(346 CRC patients). A prediction model was developed to integrate the radiomics signature and clinical candidate predictors [age, sex, tumor location, and carcinoembryonic antigen(CEA) level]. Apparent prediction performance was assessed. After internal validation, independent temporal validation(separate from the cohort used to build the model) was then conducted in 217 CRC patients. The final model was converted to an easy-to-use nomogram.Results: The developed radiomics nomogram that integrated the radiomics signature and CEA level showed good calibration and discrimination performance [Harrell's concordance index(c-index): 0.817; 95% confidence interval(95% CI): 0.811–0.823]. Application of the nomogram in validation cohort gave a comparable calibration and discrimination(c-index: 0.803; 95% CI: 0.794–0.812).Conclusions: Integrating the radiomics signature and CEA level into a radiomics prediction model enables easy and effective risk assessment of PNI in CRC. This stratification of patients according to their PNI status may provide a basis for individualized auxiliary treatment.Yanqi Huang Lan He Di Dong Caiyun Yang Cuishan Liang Xin Chen Zelan Ma Xiaomei Huang Su Yao Changhong Liang Jie Tian Zaiyi Liu 2018Chinese Journal of Cancer Research2018,30,1:23
7The protective effect of vitamin E against oxidative damage caused by formaldehyde in the testes of adult rats显示文摘瞄准:在成年老鼠的睾丸由 FA 对氧化损坏在睾丸和维生素E(VE ) 的保护的效果上调查甲醛(FA ) 的效果。方法:三十只老鼠随机被划分成三个组:(1 ) 控制;(2 ) FA 处理组织(脂肪) ;并且(3 ) 胖 + VE 组织。胖、胖的 + VE 组被吸入在 10 mg/m (3 ) 的集中暴露于 FA 2 个星期。另外,胖 + VE 组在 2 星期的 FA 处理期间是口头上地管理的 VE。在精子的处理,在睾丸的组织病理学说、生物化学的变化,以及数量和质量以后,被观察。结果:精子的阴囊的重量,数量和质量,超级氧化物歧化酶(草皮)的活动,而 malondialdehyde ( MDA )的水平显著地在控制组与那些相比在胖组在老鼠的睾丸被增加,谷胱甘肽过氧化物酶( GSH-Px )和谷胱甘肽( GSH )显著地被减少。VE 处理在胖 + VE 组恢复了这些参数。另外,有 hematoxylin 曙红的显微镜学(他) 染色证明细精管萎缩的、生精的上皮细胞瓦解了,在在胖组和 VE 处理的老鼠的 shed 显著地在胖 + VE 改进了阴囊的结构组。结论:在由导致氧化应力的成年老鼠的阴囊的结构和功能,和这损坏能部分是的 FA 破坏由 VE 逆行。Dang-Xia Zhou Shu-Dong Qiu Jie Zhang Hong Tian Hai-Xue Wang 2006Asian Journal of Andrology2006,8,5:21
8Analysis of the Fungal Community in Apple Replanted Soil Around Bohai Gulf显示文摘Apple replant disease(ARD) is a frequently occurring plant disease in replanted orchards around Bohai Gulf, which causes growth inhibition and even death of plants. The aim of this study was to investigate the etiology of ARD around Bohai Gulf. In this study, the primary growth inhibition of apple seedlings was evaluated in ten replanted soils, sampled around Bohai Gulf. A fungal clone library was used to identify changes in the structure and composition of the soil fungal community. The results revealed that the Simpson diversity indices of Laizhou and Pulandian orchards were higher than others, presenting severe ARD. Ascomycota dominated around Bohai Gulf at the phyla level. Fusarium and Saccharomyces were abundant in all replanted soils. In addition, correlations between the relative abundance of fungal genera in soils and the severity of ARD were analyzed. The results showed that Fusarium was correlated positively with the severity of ARD, but Mortierella was negatively correlated. Furthermore, the quantitative PCR of Fusarium oxysporum, which was regarded as a factor of ARD, was performed. Overall, this study demonstrated that ARD was strongly associated with an unbalanced microbial ecosystem with more pathogenic fungi, while Fusarium in the apple replanted soil was the key factor for ARD around Bohai Gulf.WANG Gongshuai YIN Chengmiao PAN Fengbing WANG Xiaobao XIANG Li WANG Yanfang WANG Jinzheng TIAN Changping CHEN Jie MAO Zhiquan 2018Horticultural Plant Journal2018,4,5:21
9High-efficiency breeding of early-maturing rice cultivars via CRISPR/Cas9-mediated genome editing显示文摘Rice is a staple food for more than half of the human population.It has been estimated that by 2030,40%more rice needs to be produced in order to meet the growing demand(Khush,2005).One of the strategies to improve rice productivity is to enlarge riceXiufeng Li Wenjia Zhou Yuekun Ren Xiaojie Tian Tianxiao Lv Zhenyu Wang Jun Fang Chengcai Chu Jie Yang Qingyun Bu 2017Journal of Genetics and Genomics2017,44,3:20
10Precise nanomedicine for intelligent therapy of cancer显示文摘Precise nanomedicine has been extensively explored for efficient cancer imaging and targeted cancer therapy, as evidenced by a few breakthroughs in their preclinical and clinical explorations. Here, we demonstrate the recent advances of intelligent cancer nanomedicine, and discuss the comprehensive understanding of their structure-function relationship for smart and efficient cancer nanomedicine including various imaging and therapeutic applications, as well as nanotoxicity. In particular, a few emerging strategies that have advanced cancer nanomedicine are also highlighted as the emerging focus such as tumor imprisonment, supramolecular chemotherapy, and DNA nanorobot. The challenge and outlook of some scientific and engineering issues are also discussed in future development. We wish to highlight these new progress of precise nanomedicine with the ultimate goal to inspire more successful explorations of intelligent nanoparticles for future clinical translations.Huabing Chen Zhanjun Gu Hongwei An Chunying Chen Jie Chen Ran Cui Siqin Chen Weihai Chen Xuesi Chen Xiaoyuan Chen Zhuo Chen Baoquan Ding Qian Dong Qin Fan Ting Fu Dayong Hou Qiao Jiang Hengte Ke Xiqun Jiang Gang Liu Suping Li Tianyu Li Zhuang Liu Guangjun Nie Muhammad Ovais Daiwen Pang Nasha Qiu Youqing Shen Huayu Tian Chao Wang Hao Wang Ziqi Wang Huaping Xu Jiang-Fei Xu Xiangliang Yang Shuang Zhu Xianchuang Zheng Xianzheng Zhang Yanbing Zhao Weihong Tan Xi Zhang Yuliang Zhao 2018Science China Chemistry2018,61,12:19
11Effectiveness of Different Waist Circumference Cut-off Values in Predicting Metabolic Syndrome Prevalence and Risk Factors in Adults in China显示文摘Objective To study the effectiveness of waist circumference cut-off values in predicting the prevalence of metabolic syndrome(MetS) and risk factors in adults in China. Methods A cross-sectional survey was condcuted in 14 provinces(autonomous region, municipality) in China. A total of 47 325 adults aged ≥20 years were selected by multistage stratified sampling, and questionnaire survey and physical and clinical examination were conducted among them. MetS was defined according to the International Diabetes Federation(IDF) criteria and modified IDF criteria.Results The age-standardized prevalence of MetS was 24.2%(22.1% in men and 25.8% in women) and 19.5%(22.1% in men and 18.0% in women) according to the IDF criteria and modified IDF criteria respectively. The age-standardized prevalence of pre-MetS was 8.1%(8.6% in men and 7.8% in women) according to the modified IDF criteria. The prevalence of MetS was higher in urban residents than rural residents and in northern China residents than in southern China residents. The prevalence of central obesity was about 30% in both men and women according to the ethnicity-specific cut-off values of waist circumference for central obesity(90 cm for men and 85 cm for women). Multivariate regression analysis revealed no significant difference in risk factors between the two MetS definitions. Conclusion Using both the modified IDF criteria and ethnicity-specific cut-off values of waist circumference can provide more useful information about the prevalence of MetS in China.ZHOU Hai Cheng LAI Ya Xin SHAN Zhong Yan JIA Wei Ping YANG Wen Ying LU Ju Ming WENG Jian Ping JI Li Nong LIU Jie TIAN Hao Ming JI Qiu He ZHU Da Long CHEN Li GUO Xiao Hui ZHAO Zhi Gang Li Qiang ZHOU Zhi Guang GE Jia Pu SHAN Guang Liang 2014Biomedical and Environmental Sciences2014,27,5:17
12Simultaneous changes in seed size, oil content and protein content driven by selection of SM/EEIhomologues during soybean domestication显示文摘Soybean accounts for more than half of the global production of oilseed and more than a quarter of the protein used globally for human food and animal feed.Soybean domestication involved parallel increases in seed size and oil content,and a concomitant decrease in protein content.However,science has not yet discovered whether these effects were due to selective pressure on a single gene or multiple genes.Here,re-sequencing data from>800 genotypes revealed a strong selection during soybean domestication on GmSWEETlOa.The selection of GmSWEETlOa conferred simultaneous increases in soybean-seed size and oil content as well as a reduction in the protein content.The result was validated using both near-isogenic lines carrying substitution of haplotype chromosomal segments and transgenic soybeans.Moreover,GmSWEETlOb was found to be functionally redundant with its homologue GmSWEETlOa and to be undergoing selection in current breeding,leading the the elite allele GrnSWEETlOb,a potential target for present-day soybean breeding.Both GmSWEETlOa and GmSWEETlOb were shown to transport sucrose and hexose,contributing to sugar allocation from seed coat to embryo,which consequently determines oil and protein contents and seed size in soybean.We conclude that past selection of optimal GmSWEETlOa alleles drove the initial domestication of multiple soybean-seed traits and that targeted selection of the elite allele GmSWEETlOb may further improve the yield and seed quality of modern soybean cultivars.Shoudong Wang Shulin Liu Jie Wang Kengo Yokosho Bin Zhou Ya-Chi Yu Zhi Liu Wolf BFrommer Jian Feng Ma Li-Qing Chen Yuefeng Guan Huixia Shou Zhixi Tian 2020National Science Review2020,7,11:17
13Cadmium accumulation and tolerance of two castor cultivars in relation to antioxidant systems显示文摘To investigate the effects of Cd on tolerance and antioxidant activities of castor, two different castor(Ricinus communis L.) cultivars(Zibo No. 5 and Zibo No. 8) were used for a hydroponic experiment(0, 1 and 2 mg/L Cd) and a pot experiment using Cd-contaminated soil(34 mg/kg) with the addition of ethylenedinitrilotetraacetic acid(EDTA). The results indicated that there were significant differences between the two cultivars with respect to Cd uptake in shoots(113–248 mg/kg for Zibo No. 5 and 130–288 mg/kg Zibo No. 8), biomass tolerance indexes(64.9%–74.6% for Zibo No. 5 and 80.1%–90.9% for Zibo No. 8) in the hydroponic experiment and survival rates(0% for Zibo No. 5 and 100% for Zibo No. 8)determined by the addition of EDTA in the pot experiment, suggesting that Zibo No. 8 has higher tolerance than Zibo No. 5. Moreover, the castor cultivars have low bioconcentration factors(4.80% for Zibo No. 5 and 5.43% for Zibo No. 8) and low translocation factors(<1%).Consequently, Zibo No. 8 can participate in Cd phytostabilization in highly Cd-polluted areas. The results indicated that glutathione(GSH) as a non-enzymatic antioxidant, and antioxidant enzymes including superoxide dismutase(SOD), catalase(CAT) and guaiacol peroxidase(GPX), were cultivar- and dose-dependent. The higher tolerance of Zibo No. 8compared with Zibo No. 5 can be attributed to the higher GSH levels in the root and higher GPX activity in the leaf.Hanzhi Zhang Qingjun Guo Junxing Yang Tongbin Chen Guangxu Zhu Marc Peters Rongfei Wei Liyan Tian Chunyu Wang Deyun Tan Jie Ma Gangming Wang Yingxin Wan 2014Journal of Environmental Sciences2014,26,10:15
14Chemiluminescence detection of permanganate index (COD_(Mn)) by a luminol-KMnO_4 based reaction显示文摘为与流动注射分析相结合的高锰酸盐索引(CODMn ) 的决心的一个新奇化合光(CL ) 系统在这研究被建议了。根据 luminol-KMnO4 系统的 chemiluminescent 反应, luminol-KMnO4 系统引起的轻排放被光电倍增管试管检测,并且在样品消化与 CODMn.Effects 相反地成正比以后,它的紧张由 KMnO4 的外观引起了因为决定例如 pH,集中和干扰的 CODMn 详细被调查。有 0.3 的一个线性范围的 0.3 mg/LCODMn 的察觉限制—为它的理论 CODMn 的 200 mg/L 在优化试验性的条件下面被获得。相对标准差为 5.0 mg/LCODMn 是 4.3%(n = 11 ) 。为决定 CODMn 的这个 CL 流动系统为自动分析简单、快速、合适。现在的方法获得的数据被标准 titrimetric 方法相当在对那些的好同意获得。与令人满意的结果决定真实样品被使用了。TIAN Jinjun HU Yonggang ZHANG Jie 2008Journal of Environmental Sciences2008,20,2:14
15Flight control for a flexible air-breathing hypersonic vehicle based on quasi-continuous high-order sliding mode显示文摘The focus of this paper is on control design and simulation for the longitudinal model of a flexible air-breathing hypersonic vehicle(FAHV).The model of interest includes flexibility effects and intricate couplings between the engine dynamics and flight dynamics.To overcome the analytical intractability of this model,a nominal control-oriented model is constructed for the purpose of feedback control design in the first place.Secondly,the multi-input multi-output(MIMO) quasi-continuous high-order sliding mode(HOSM) controller is proposed to track step changes in velocity and altitude,which is based on full state feedback.The simulation results are presented to verify the effectiveness of the proposed control strategy.Jie Wang Qun Zong Bailing Tian Helong Liu 2013Journal of Systems Engineering and Electronics2013,24,2:14
16Reversion effects of curcumin on multidrug resistance of MNNG/HOS human osteosarcoma cells in vitro and in vivo through regulation of P-glycoprotein显示文摘Si Meng Zhao Jie Li Xin Tian Ji-guang Li Yong-gang Li Jian-min 2013Chinese Medical Journal2013,,21:14
17Application of next-generation sequencing technology to precision medicine in cancer: joint consensus of the Tumor Biomarker Committee of the Chinese Society of Clinical Oncology显示文摘Next-generation sequencing(NGS) technology is capable of sequencing millions or billions of DNA molecules simultaneously.Therefore, it represents a promising tool for the analysis of molecular targets for the initial diagnosis of disease, monitoring of disease progression, and identifying the mechanism of drug resistance. On behalf of the Tumor Biomarker Committee of the Chinese Society of Clinical Oncology(CSCO) and the China Actionable Genome Consortium(CAGC), the present expert group hereby proposes advisory guidelines on clinical applications of NGS technology for the analysis of cancer driver genes for precision cancer therapy. This group comprises an assembly of laboratory cancer geneticists, clinical oncologists, bioinformaticians,pathologists, and other professionals. After multiple rounds of discussions and revisions, the expert group has reached a preliminary consensus on the need of NGS in clinical diagnosis, its regulation, and compliance standards in clinical sample collection. Moreover, it has prepared NGS criteria, the sequencing standard operation procedure(SOP), data analysis, report, and NGS platform certification and validation.Xuchao Zhang Zhiyong Liang Shengyue Wang Shun Lu Yong Song Ying Cheng Jianming Ying Weiping Liu Yingyong Hou Yangqiu Li Yi Liu Jun Hou Xiufeng Liu Jianyong Shao Yanhong Tai Zheng Wang Li Fu Hui Li Xiaojun Zhou Hua Bai Mengzhao Wang You Lu Jinji Yang Wenzhao Zhong Qing Zhou Xuening Yang Jie Wang Cheng Huang Xiaoqing Liu Xiaoyan Zhou Shirong Zhang Hongxia Tian Yu Chen Ruibao Ren Ning Liao Chunyan Wu Zhongzheng Zhu Hongming Pan Yanhong Gu Liwei Wang Yunpeng Liu Suzhan Zhang Tianshu Liu Gong Chen Zhimin Shao Binghe Xu Qingyuan Zhang Ruihua Xu Lin Shen Yilong Wu 2019Cancer Biology & Medicine2019,16,1:14
18GNAI1 Suppresses Tumor Cell Migration and Invasion and is Post-Transcriptionally Regulated by Mir-320a/c/d in Hepatocellular Carcinoma显示文摘Objective To explore the role and regulation of guanine nucleotide-binding protein G(i),α-1 subunit(GNAI1) in hepatocellular carcinoma(HCC). Methods Expression of GNAI1 in HCC samples was determined by qRT-PCR and immunohistochemical(IHC) staining.Huh-7 and SNU-387 cells stably expressing GNAI1 were established by the infection of lentivirus transducing unit containing GNAI1.siRNA against GNAI1 was transfected into SMMC-7721 cells to knock down the GNAI1 expression in HCC cells.Mir-320a/c/d mimics were transfected into SMMC-7721 and SK-Hep-1 cells and the expression of GNAI1 was determined by Western blot.The migration and invasion of Huh-7,SNU-387,SK-Hep-1 and SMMC-7721 cells were investigated by Transwell assays. Results The GNAI1 protein was significantly downregulated in HCC samples without changes in its mRNA levels.GNAI1 could inhibit the migration and invasion of HCC cells in vitro.Further investigations indicated that GNAI1 was a target of miR-320a/c/d in HCC cells.Transwell assays demonstrated that these microRNAs could promote the migratory ability and invasivesess of HCC cells in vitro. Conclusions GNAI1 is downregulated in HCC and inhibits the migration and invasion of HCC cells.This study is the first to investigate the role of GNAI1 in cancer.Regulation of GNAI1 by miR-320a/c/d indicates new therapeutic avenues for targeting HCC metastasis.Jian Yao Lin-hui Liang Yu Zhang Jie Ding Qi Tian Jin-jun Li Xiang-huo He 2012Clinical oncology and cancer resexreh2012,9,4:13
19Growth induction of hepatic stimulator substance in hepatocytes through its regulation on EGF receptors显示文摘The cytosolic liver-specific growth factor-hepatic stimulator substance (HSS) has been shown to be able to amplify the rat hepatocyte proliferation responded to EGF. In order to get more insight into the mechanism, the regulatory effect of HSS on EGF-receptor(EGF-R) and the receptor phosphorylation at molecular level was studied. HSS partially purified from weanling rat liver was given to cultured hepatocytes and its influence on EGF-R specific binding and internalization as well as mRNA expression were investigated. The results showed that preincubation of hepatocytes with HSS could lead to an increase in [125I]-EGF binding to its receptors and inhibit EGFinduced receptor down-regulation. Furthermore, the overexpression of EGF-R mRNA stimulated by HSS was seen during 2-12 h after the incubation. Additionally, it was demonstrated with human hepatoma sMMC-7721 cells in Western blot that the EGF-R expression and the receptor autophosphorylation were increased with dose/timedependency after HSS treatment. These results strongly suggest that the mechanism of HSS action on hepatocyte growth might be related to its modulation on EGF-R and receptor-mediated signaling transduction.AN WEI XIAO JUN LIU TIAN GUANG LEI JIE DAI GUO GUANG DU(Department of Cell Biology, Capital University of Medical Sciences, Beijing 100054, China) 1999Cell Research1999,9,1:13
20Detection of lung adenocarcinoma using magnetic beads based matrix-assisted laser desorption/ionization time-of-flight mass spectrometry serum protein profiling显示文摘背景由于 proteomic 技术的快速的发展,最近,大进展在许多科学的地里被做了。我们试图使用基于的磁性的祷告(液体薄片)为肺腺癌( adCA )屏蔽特殊 biomarkers 的帮助矩阵的激光解吸附作用/电离 time-of-flight 团 spectrometry ( MALDI-TOF-MS )技术,并且交换磁性的祷告( MB-WCX )用弱阳离子建立诊断蛋白质 profiles.Methods 从 35 肺 adCA , 46 良性的肺疾病( BLD )和 44 个健康个人的 sera 孤立并且净化低分子的重量蛋白质。锚 chip-MALDI-TOF-MS 获得的产生系列被 ClinProTools 和模式识别分析基因算法(GA ) 。在工作的团中的结果 800-10 变化 000 Da, 99 座特殊山峰在肺 adCA 对 BLD 被解决,当 101 座山峰在肺 adCA 对健康的人被解决时。能把 adCA 与 BLD 区分开来的 GA 获得的侧面与 80% 的敏感由 4053.88, 4209.57 和 3883.33 Da 组成, 93% 的特性当那能把 adCA 与健康控制分开时与 94% 的敏感由 2951.83 Da 和 4209.73 Da 组成, 95% 的特性。carcinoembryonic 抗原(CEA ) 在这个实验提供的敏感比我们的差别对待的侧面显著地低(P < 0.005 ) 。我们进一步识别了一个真核细胞的肽链版本因素 GTP 有约束力的子单元(eRF3b )(4209 Da ) 和可以为肺 adCA 用作候选人 biomarkers 的补充 C3f (1865 Da ) 。基于的 MALDI-TOF-MS 技术能很快并且有效地屏蔽的结论磁性的祷告从肺 adCA 病人和控制的 sera 的特殊蛋白质 / 多肽,它有潜力为为肺 adCA 建立一个新诊断方法珍视。LIN Xiu-li YANG Shuan-ying DU Jie TIAN Ying-xuan BU Li-na HUO Shu-fen WANG Feng-peng NAN Yan-dong 2010Chinese Medical Journal2010,,1:13
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