|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Precise 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 | 2018 | Science China Chemistry2018,61,12: | 19 |
| 2 | Asymptomatic patients of chronic obstructive pulmonary disease in China显示文摘背景长期的妨碍的肺的疾病(COPD ) 让可变自然历史和并非所有个人跟随一样的功课。这研究试图在 China.Methods 从基于人口的调查识别无征状的 COPD 病人的流行和特征多级式的簇采样策略从七不同省 / 城市在一张人口被使用。所有居民(超过 40 岁) 与一张标准化问询表被会见, spirometry.Post-bronchodilator 在 1 秒(FEV1 ) 强迫了吐气的体积 /forced 不到 70% 的重要能力(FVC ) 被定义为 COPD 的诊断标准。屏蔽的所有 COPD 病人根据长期的呼吸症状的存在或缺席被划分成征兆的组和无征状的组。Socio 人口统计,个人和暴露变量被收集,在从 25 627 采样与 COPD 被诊断的 1668 个病人之中的 analyzed.Results 使遭到,(35.3%) 589 是无征状的。年龄,性别,身体团索引(BMI ) ,农村、城市的分布,吸烟习惯和教育层次在二个组是类似的。64.7% 无征状的病人的一个总数没有 comorbidities。心血管的疾病和肺癌症比无征状的 group.Asymptomatic COPD 组多半是更少在厨房,呼吸疾病的家庭历史和周期性的童年咳嗽里与差的通风介绍的在征兆的 COPD 病人之中是更普通的。无征状的 COPD 病人有的显著地更高的 FEV1 (73.1% 对 61.0%) , FVC (91.9% 对 82.0%) ,和 FEV1/FVC (62.9%vs.58.7%) 的更高的比率(所有 P < 0.001 ) 比征兆的组。更无征状的病人是 underdiagnosed (91.9%vs.54.3% , P < 0.001 ) 比征兆的 patients.Conclusions,这大基于人口的调查在中国证实了无征状的 COPD 病人的高流行。屏蔽测试的呼吸量测定法的更多的使用可能对 COPD 的早察觉重要。 | LU Ming YAO Wan-zhen ZHONG Nan-shan ZHOU Yu-min WANG Chen CHEN Ping KANG Jian HUANG Shao-guang CHEN Bao-yuan WANG Chang-zheng NI Dian-tao WANG Xiao-ping WANG Da-li LIU Sheng-ming Lv Jia-chun SHEN Ning DING Yan-ling RAN Pi-xin | 2010 | Chinese Medical Journal2010,,12: | 17 |
| 3 | Clinical characteristics of human infection with a novel avian-origin influenza A(H10N8) virus显示文摘 | Zhang Wei Wan Jianguo Qian Kejian Liu Xiaoqing Xiao Zuke Sun Jian Zeng Zhenguo Wang Qi Zhang Jinxiang Jiang Guanghui Nie Cheng Jiang Rong Ding Chengzhi Li Ran Horby Peter Gao Zhancheng | 2014 | Chinese Medical Journal2014,,18: | 12 |
| 4 | Toward an improved data stewardship and service for environmental and ecological science data in West China显示文摘Sharing of scientific data can help scientific research to flourish and facilitate more widespread use of scientific data for the benefit of society.The Environmental and Ecological Science Data Center for West China(WestDC),sponsored by the National Natural Science Foundation of China(NSFC),aims to collect,manage,integrate,and disseminate environmental and ecological data from western China.It also aims to provide a long-term data service for multidisciplinary research within NSFC’s‘‘Environment and Ecology of West China Research Plan’’(NSFC West Plan).An integrated platform has been developed by the WestDC,and this has the function of data sharing,acting as a knowledge repository.Major data sets developed by the WestDC include basic geographic data,the regionalization of global data set for China,scientific data for cold and arid regions in China,scientific data for the cryosphere in countries that neighbor China,data relating to the inland river basins in northwestern China,and data submitted by the NSFC West Plan projects.In compliance with the‘‘full and open’’data sharing policy,most data in the WestDC can be accessed online.Highlights include detailed data documentation,the integration of data with bibliographic knowledge,data publishing,and data reference. | Xin Li Zhuotong Nan Guodong Cheng Yongjian Ding Lizong Wu Liangxu Wang Jian Wang Youhua Ran Hongxing Li Xiaoduo Pan Zhongming Zhu | 2011 | International Journal of Digital Earth2011,4,4: | 11 |
| 5 | Effect of Nb on Microstructure and Mechanical Properties in Non-magnetic High Manganese Steel显示文摘Microstructure and mechanical properties of two kinds of non-magnetic high manganese steels with and without Nb addition which experienced the same rolling and heating treatment were investigated by means of scanning electron microscopy,electron back-scattered diffraction,transmission electron microscopy,X-ray diffraction and tensile test.It was found that the microstructure of the high manganese steel was refined by the Nb addition.Moreover,steel with Nb addition has a higher stacking fault energy which favors the deformation twinning.Twinning is the most important deformation mechanism in the Nb-bearing steel.Therefore,steel with Nb addition has much higher strength and higher plasticity.The product of tensile strength and total elongation exceeds 61.8 GPa·%.In addition,steel with Nb addition also has excellent non-magnetic property. | Jia-li CAO Ai-min ZHAO Ji-xiong LIU Jian-guo HE Ran DING | 2014 | Journal of Iron and Steel Research(International)2014,21,6: | 11 |
| 6 | Excision repair cross complementation group 1 polymorphisms and lung cancer risk: a meta-analysis显示文摘背景几研究评估了在在多样的人口,但是与冲突在各个分享相对小的样品的 results.By 的酶和肺癌症风险学习的编码切除修理十字互补组 1 的多型性( ERCC1 )之间的协会,由严密 methods.Methods Embase 执行证据的元分析是可能的,奥维德, Medline 和中国国家知识基础结构被寻找。另外的研究在原来的研究或评论文章从参考书被识别。满足包括标准的文章系统地被考察,并且报导数据用我们从七合格研究与肺癌症和 4332 控制发现了 3810 个案例的 meta-analysis.Results 的统计技术被聚集。T19007C 多型性没在肺癌症风险上显示出重要效果(C 等位基因对 T 等位基因:机会比率(或)=0.91, 95% 信心间隔(CI )=0.80-1.04;CC 对 TT:OR=0.76, 95% CI=0.56-1.02;CC 对(CT+TT ) :OR=0.96, 95% CI=-0.84-1.10 ) 。同样,当成层时,为肺癌症风险上的 T19007C 多型性没有重要主要效果由种族(汉语或白种人) 的分析。没有重要协会在 C8092A 多型性(3060 个病人和 2729 控制) 和肺癌症的风险之间被发现(等位基因对 C 等位基因:OR=1.03, 95% CI=0.95-1.11;AA 对 CC:OR=1.08, 95% CI=-0.88-1.33;AA 对(AC+CC ) :OR=1.08, 95% CI=-0.88-1.31 ) 我们几乎没在白种人或汉中国人民发现在 ERCC 1 的 T1900C 或 C8092A 多型性和肺癌症的风险之间的一个协会的小证据的 .Conclusion。 | CAO Chao ZHANG Yan-mei WANG Ran SUN Shi-fang CHEN Zhong-bo MA Hong-ying YU Yi-ming DING Qun-li SHU Li-hua DENG Zai-chun | 2011 | Chinese Medical Journal2011,,14: | 9 |
| 7 | Bioreductive prodrugs as cancer therapeutics:targeting tumor hypoxia显示文摘Hypoxia, a state of low oxygen, is a common feature of solid tumors and is associated with disease progression as well as resistance to radiotherapy and certain chemotherapeutic drugs. Hypoxic regions in tumors, therefore, represent attractive targets for cancer therapy. To date, five distinct classes of bioreactive prodrugs have been developed to target hypoxic cells in solid tumors. These hypoxia-activated prodrugs, including nitro compounds, N-oxides, quinones, and metal complexes, generally share a common mechanism of activation whereby they are reduced by intracellular oxidoreductases in an oxygensensitive manner to form cytotoxins. Several examples including PR-104, TH-302, and EO9 are currently undergoing phase II and phase III clinical evaluation. In this review, we discuss the nature of tumor hypoxia as a therapeutic target, focusing on the development of bioreductive prodrugs. We also describe the current knowledge of how each prodrug class is activated and detail the clinical progress of leading examples. | Christopher P.Guise Alexandra M.Mowday Amir Ashoorzadeh Ran Yuan Wan-Hua Lin Dong-Hai Wu Jeff B.Smaill Adam V.Patterson Ke Ding | 2014 | Chinese Journal of Cancer2014,33,2: | 9 |
| 8 | Transplantation of bone marrow-derived endothelial progenitor cells and hepatocyte stem cells from liver fibrosis rats ameliorates liver fibrosis显示文摘AIM To explore the effectiveness for treating liver fibrosisby combined transplantation of bone marrow-derived endothelial progenitor cells(BM-EPCs) and bone marrow-derived hepatocyte stem cells(BDHSCs) from the liver fibrosis environment.METHODS The liver fibrosis rat models were induced with carbon tetrachloride injections for 6 wk. BM-EPCs from rats with liver fibrosis were obtained by different rates of adherence and culture induction. BDHSCs from rats with liver fibrosis were isolated by magnetic bead cell sorting. Tracing analysis was conducted by labeling EPCs with PKH26 in vitro to show EPC location in the liver. Finally, BM-EPCs and/or BDHSCs transplantation into rats with liver fibrosis were performed to evaluate the effectiveness of BM-EPCs and/or BDHSCs on liver fibrosis.RESULTS Normal functional BM-EPCs from liver fibrosis rats were successfully obtained. The co-expression level of CD133 and VEGFR2 was 63.9% ± 2.15%. Transplanted BM-EPCs were located primarily in/near hepatic sinusoids. The combined transplantation of BM-EPCs and BDHSCs promoted hepatic neovascularization, liver regeneration and liver function, and decreased collagen formation and liver fibrosis degree. The VEGF levels were increased in the BM-EPCs(707.10 ± 54.32) and BM-EPCs/BDHSCs group(615.42 ± 42.96), compared with those in the model group and BDHSCs group(P < 0.05). Combination of BM-EPCs/BDHSCs transplantation induced maximal up-regulation of PCNA protein and HGF m RNA levels. The levels of alanine aminotransferase(AST), aspartate aminotransferase, total bilirubin(TBIL), prothrombin time(PT) and activated partial thromboplastin time in the BMEPCs/BDHSCs group were significantly improved, to be equivalent to normal levels(P > 0.05) compared with those in the BDHSC(AST, TBIL and PT, P < 0.05) and BM-EPCs(TBIL and PT, P < 0.05) groups. Transplantation of BM-EPCs/BDHSCs combination significantly reduced the degree of liver fibrosis(staging score of 1.75 ± 0.25 vs BDHSCs 2.88 ± 0.23 or BMEPCs 2.75 ± 0.16, P < 0.05).CONCLUSION The combined transplantation exhibited maximal therapeutic effect compared to that of transplantation of BM-EPCs or BDHSCs alone. Combined transplantation of autogenous BM-EPCs and BDHSCs may represent a promising strategy for the treatment of liver fibrosis, which would eventually prevent cirrhosis and liver cancer. | Ling Lan Ran Liu Ling-Yun Qin Peng Cheng Bo-Wei Liu Bing-Yong Zhang Song-Ze Ding Xiu-Ling Li | 2018 | World Journal of Gastroenterology2018,24,2: | 9 |
| 9 | Analysis of reference gene expression for real-time PCR based on relative quantitation and dual spike-in strategy in the silkworm Bombyx mori显示文摘为即时量的聚合酶链反应(qPCR ) ,一般来说,正规化策略把引用基因用作控制并且不应该响应改变条件变化避免这基因的试验性的错误表示的介绍。然而,许多参考基因的表示被报导了更加变化,没有适当正规化,目标基因的表示侧面能被曲解。在这研究,七的表达式层次通常使用了引用基因(行为, GAPDH, 28srRNA, RPL3, -tubulin, UBC,和 TBP ) 与 20-hydroxyecdysone (20E ) 并且与卢丁在不同开发时间点并且响应处理被检测。表示稳定性用 geNorm 和 NormFinder 软件被分析。重要变化在正常纸巾之中并且在试验性地对待的纸巾之间被发现。双刺在里面策略也在正常纸巾之中并且在试验性地对待的纸巾之间揭示了参考基因的表示层次的重要变化。Glutathione-S-transferase 西格马 1 (GSTs1 ) ,它在胖身体有高表达式水平并且与抵抗的机制有关,被用作目标基因验证这二条途径的可行性和差别。 | Ran Peng Yuanfen Zhai Hua Ding Tianyuan Di Ting Zhang Bing Li Weide Shen Zhengguo Wei | 2012 | Acta Biochimica et Biophysica Sinica2012,44,7: | 8 |
| 10 | Sequential fate-switches in stem-like cells drive the tumorigenic trajectory from human neural stem cells to malignant glioma显示文摘Glioblastoma(GBM)is an incurable and highly heterogeneous brain tumor,originating from human neural stem/progenitor cells(hNSCs/hNPCs)years ahead of diagnosis.Despite extensive efforts to characterize hNSCs and end-stage GBM at bulk and single-cell levels,the de novo gliomagenic path from hNSCs is largely unknown due to technical difficulties in early-stage sampling and preclinical modeling.Here,we established two highly penetrant hNSC-derived malignant glioma models,which resemble the histopathology and transcriptional heterogeneity of human GBM.Integrating time-series analyses of whole-exome sequencing,bulk and single-cell RNA-seq,we reconstructed gliomagenic trajectories,and identified a persistent NSC-like population at all stages of tumorigenesis.Through trajectory analyses and lineage tracing,we showed that tumor progression is primarily driven by multi-step transcriptional reprogramming and fate-switches in the NSC-like cells,which sequentially generate malignant heterogeneity and induce tumor phenotype transitions.We further uncovered stage-specific oncogenic cascades,and among the candidate genes we functionally validated C1QL1 as a new glioma-promoting factor.Importantly,the neurogenic-to-gliogenic switch in NSC-like cells marks an early stage characterized by a burst of oncogenic alterations,during which transient AP-1 inhibition is sufficient to inhibit gliomagenesis.Together,our results reveal previously undercharacterized molecular dynamics and fate choices driving de novo gliomagenesis from hNSCs,and provide a blueprint for potential early-stage treatment/diagnosis for GBM. | Xiaofei Wang Ran Zhou Yanzhen Xiong Lingling Zhou Xiang Yan Manli Wang Fan Li Chuanxing Xie Yiming Zhang Zongyao Huang Chaoqiong Ding Kaidou Shi Weida Li Yu Liu Zhongwei Cao Zhen-Ning Zhang Shengtao Zhou Chong Chen Yan Zhang Lu Chen Yuan Wang | 2021 | Cell Research2021,31,6: | 8 |
| 11 | Injectable peptide hydrogel as intraperitoneal triptolide depot for the treatment of orthotopic hepatocellular carcinoma显示文摘Chemotherapy is among the limited choices approved for the treatment of hepatocellular carcinoma(HCC) at intermediate and advanced stages. Preferential and prolonged drug exposure in diseased sites is required to maximize the therapeutic index of the drug. Here, we report an injectable supramolecular peptide hydrogel as an intraperitoneal depot for localized and sustained release of triptolide for the treatment of orthotopic HCC. We chose peptide amphiphile C16-GNNQQNYKD-OH-based nanofibers as gelators and carriers for triptolide. Sustained triptolide release from the hydrogel was achieved over 14 days in vitro, with higher accumulation in and cytotoxicity against human HCC Bel-7402 in comparison with L-02 fetal hepatocytes. After intraperitoneal injection, the hydrogel showed prolonged retention over 13 days and preferential accumulation in the liver, realizing HCC growth inhibition by99.7 ± 0.1% and animal median survival extension from 19 to 43 days, without causing noticeable pathological changes in the major organs. These results demonstrate that injectable peptide hydrogel can be a potential carrier for localized chemotherapy of HCC. | Xiyue Zhao Xiaoyu Liu Pengcheng Zhang Yiran Liu Wei Ran Ying Cai Junyang Wang Yihui Zhai Guanru Wang Yaping Ding Yaping Li | 2019 | Acta Pharmaceutica Sinica B2019,9,5: | 7 |
| 12 | Effect of Heat Treatment on Microstructure and Mechanical Properties of Quenching and Partitioning Steel显示文摘In order to investigate the effect of microstructural characterization on the mechanical properties and retained austenite stability, a different type of quenching and partitioning steel(I-Q&P) through intercritical annealing before the quenching and partitioning process was designed, which can realize lamellar intercritical microstructure compared to the conventional quenching and partitioning(Q&P) process. The morphology of ferrite and martensite/retained austenite is lamellar in the I-Q&P steel while it is equiaxed after being heat-treated by conventional Q&P process. The I-Q&P steel is proved to have better formability and mechanical properties than conventional Q&P steel, which is due to the highervolume fraction of retained austenite in the I-Q&P steel and confirmed by electron backscattering diffraction patterns and X-ray diffraction. Furthermore, the stability of retained austenite in I-Q&P steel is also higher than that in conventional Q&P steel, which is investigated by tensile tests and differential scanning calorimetry. | Shao-Heng Sun Ai-Min Zhao Ran Ding Xiao-Gang Li | 2018 | Acta Metallurgica Sinica(English Letters)2018,31,2: | 6 |
| 13 | Communication-less harmonic compensation in a multi-bus microgrid through autonomous control of distributed generation grid-interfacing converters显示文摘This paper proposes a novel approach to compensate buses voltage and current harmonics through distributed generation(DG)interfacing converter in a multibus microgrid.The control approach of each individual DG unit was designed to use only feedback variables of the converter itself that can be measured locally.In the proposed approach,the adjacent bus voltage is indirectly derived from the measured DG converter output voltage,DG line current and line impedance.A voltage closed-loop controller and a current closed-loop controller are designed to achieve both functions of DG real power generation and harmonics compensation.Therefore,the traditional harmonic measurement devices installed at the bus as well as the long distance communication between the bus and the DG converter are not required.The proposed approach can compensate the current harmonics,mitigate the buses voltage distortion and enable the customer devices to be operated in normal conditions within the multi-bus microgrid,and meanwhile relieve the burden of power quality regulator installed at the point of common coupling.Matlab simulations and experimental results are presented to show the operational effectiveness of the proposed approach. | Guangqian DING Ran WEI Ke ZHOU Feng GAO Yi TANG | 2015 | Journal of Modern Power Systems and Clean Energy2015,3,4: | 5 |
| 14 | Association between socioeconomic status and chronic obstructive pulmonary disease in Jiangsu province, China: a population-based study显示文摘Background:Chronic obstructive pulmonary disease(COPD)is a common public health problem worldwide.Recent studies have reported that socioeconomic status(SES)is related to the incidence of COPD.This study aimed to investigate the association between SES and COPD among adults in Jiangsu province,China,and to determine the possible direct and indirect effects of SES on the morbidity of COPD.Methods:A cross-sectional study was conducted among adults aged 40 years and above between May and December of 2015 in Jiangsu province,China.Participants were selected using a multistage sampling approach.COPD,the outcome variable,was diagnosed by physicians based on spirometry,respiratory symptoms,and risk factors.Education,occupation,and monthly family average income(FAI)were used to separately indicate SES as the explanatory variable.Mixed-effects logistic regression models were introduced to calculate odds ratios(ORs)and 95%confidence intervals(CIs)for examining the SES-COPD relationship.A pathway analysis was conducted to further explore the pulmonary function impairment of patients with different SES.Results:The mean age of the 2421 participants was 56.63±9.62 years.The prevalence of COPD was 11.8%(95%CI:10.5%–13.1%)among the overall sample population.After adjustment for age,gender,residence,outdoor and indoor air pollution,body weight status,cigarette smoking,and potential study area-level clustering effects,educational attainment was negatively associated with COPD prevalence in men;white collars were at lower risk(OR:0.60,95%CI:0.43–0.83)of experiencing COPD than blue collars;compared with those within the lower FAI subgroup,participants in the upper(OR:0.68,95%CI:0.49–0.97)tertiles were less likely to experience COPD.Such negative associations between all these three SES indicators and COPD were significant among men only.Education,FAI,and occupation had direct or indirect effects on pulmonary function including post-bronchodilator forced expiratory volume in 1 s/forced vital capacity(FEV1/FVC),FEV1,FVC,and FEV1 percentage of predicted.Education,FAI,and occupation had indirect effects on pulmonary function indices of all participants mainly through smoking status,indoor air pollution,and outdoor air pollution.We also found that occupation could affect post-bronchodilator FEV1/FVC through body mass index.Conclusions:Education,occupation,and FAI had an adverse relationship with COPD prevalence in Jiangsu province,China.SES has both direct and indirect associations with pulmonary function impairment.SES is of great significance for COPD morbidity.It is important that population-based COPD prevention strategies should be tailored for people with different SES. | Dan-Dan Zhang Jian-Nan Liu Qing Ye Zi Chen Ling Wu Xue-Qing Peng Gan Lu Jin-Yi Zhou Ran Tao Zhen Ding Fei Xu Linfu Zhou | 2021 | Chinese Medical Journal2021,,13: | 5 |
| 15 | Effects of different biochars on antibiotic resistance genes during swine manure thermophilic composting显示文摘Elimination of antibiotic resistance genes(ARGs)in animal manure from concentrated animal feeding operations by thermophilic composting has drawn increasing attention.This study investigated the effects of sawdust biochar,corn stover biochar and peanut hull biochar with three spiked levels on ARGs in swine manure during thermophilic composting.Thirteen ARGs corresponding to four classes of antibiotics(tetracyclines,sulfonamides,macrolides and quinolones)were determined in the composting piles.Results indicated that the ten tested composting groups became fully mature after 30-day thermophilic composting process.tetM,tetO and ermB were reduced in all tested groups;tetC and tetG,tetX,sul1,sul2,ermF,qnrD and aac(6’)-Ib were mostly reduced under low level biochar addition but increased under higher level biochar addition;gyrA increased under medium biochar addition and reduced in other groups;oqxB remained comparatively stable throughout the composting process.The addition levels of spiked biochar are more important than types of spiked biochar on the removal of ARGs in the composting pile.The average removal rates of ARGs in the control group,low,medium and high level biochar addition groups were 0.24 logs,0.52-0.72 logs,-0.52-0.18 logs and-0.19-0.21 logs,respectively.In summary,low level biochar addition could enhance the elimination of studied ARGs in swine manure during the composting process,while medium level biochar addition to the composting piles would increase the risk of ARGs’propagation. | Jian Wang Bin Sui Yujun Shen Haibo Meng Lixin Zhao Haibin Zhou Ran Li Jingtao Ding Hongsheng Cheng Xi Zhang | 2018 | International Journal of Agricultural and Biological Engineering2018,11,6: | 5 |
| 16 | Primary analysis and screening of microRNAs in gastric cancer side population cells显示文摘AIM: To explore the micro RNA(mi RNA) profiles and to determine the key mi RNAs within the side population(SP) cells of the gastric cancer cell line MKN-45. METHODS: We used fluorescence-activated cell sorting and Hoechst 33342 labeling to obtain SP cells from the human gastric carcinoma cell line MKN-45. The mi RNA expression profiles of the SP and major population(MP) cells were examined using a mi RNA gene chip, and key mi RNAs were obtained according to aberrant expression and the mi RNAs' possible targets as predicted by bioinformatics. RESULTS: Using a significance criterion of a 1.5-fold or greater difference in expression level, we observed an increase in the expression of 34 mi RNAs and a decrease in the expression of 34 mi RNAs when comparing SP to MP cells. Using quantitative real-time reverse transcription-polymerase chain reaction to test for differentially expressed mi RNAs combined with bioinformatics results, we found that the downregulated mi RNAs, such as hsa-mi R-3175 and hsa-mi R-203, and the upregulated mi RNAs, including hsa-mi R-130 a, hsa-mi R-324-5p, hsa-mi R-34 a, and hsa-mi R-25-star, may be important in maintaining and regulating the characteristics of SP cells. CONCLUSION: There are key mi RNAs expressed within the SP cells of the gastric cancer cell line MKN-45, andinclude hsa-mi R-3175, hsa-mi R-203, hsa-mi R-130 a, hsami R-324-5p, hsa-mi R-34 a, and hsa-mi R-25-star. | Hai-Hong Zhang Guo-Li Gu Xiang-Yang Zhang Feng-Zhi Li Li Ding Qin Fan Ran Wu Wei Shi Xin-Yan Wang Lin Chen Xue-Ming Wei Xiao-Ying Yuan | 2015 | World Journal of Gastroenterology2015,21,12: | 5 |
| 17 | An integral estimate of Bessel function and its application显示文摘In this paper the authors give a new integral estimate of the Bessel function,which is an extension of Calder(?)n-Zygmund’s result.As an application of this result,we prove that the parameterized Marcinkiewicz integralμ_Ω~p with variable kernels is of type (2,2),where the kernel functionΩdoes not have any smoothness on the unit sphere in R^n. | DING Yong LI Ran | 2008 | Science China Mathematics2008,51,5: | 4 |
| 18 | Treatment of 2-phenylamino-3-methyl-6-di-n-butylaminofluoran production effluent by combination of biological treatments and Fenton's oxidation显示文摘高力量倔强的器官的溪流在生产 of2-phenylamino-3-methyl-6-di-n-butylaminofluoran 期间被生产(一个染料黑人 2, abbr.ODB 2 ) ,有一个有希望的市场的新奇 heat-sensitivematerial。在这研究,使发酸 降水的联合,主要生物处理, Fenton 的氧化和另一个生物处理成功地从 18000-25000 mg/L 为货到付款的移动被使用到在从 ODB 2 生产的 200 mg/L 下面,在70%-80%的飞行员 experiment.A 货到付款移动的废水被使发酸 降水首先在 pH of2.5-3.0.The 下面完成步简历降级允许70%的平均货到付款移动在下面 30 h.By 批的一水力的住处时间( HRT )测试,当, Fenton 的氧化的最适条件被获得:Fe^(2+)剂量 6.0 mmol/L ; H2O2 剂量 3000 mg/L ;并且反应时间 6 h.The 秒走生物处理能保证一条自河在在跟随 Fenton'streatment 的 10 h 的 HRT 下面的 200 mg/L 下面的货到付款。 | DING Wei GAO Ying-xin YANG Min DING Ran ZHANG Yu | 2007 | Journal of Environmental Sciences2007,19,10: | 4 |
| 19 | Methodology to Evaluate Fatigue Damage of High-Speed Train Welded Bogie Frames Based on On-Track Dynamic Stress Test Data显示文摘The current method of estimating the fatigue life of railway structures is to calculating the equivalent stress amplitude based on the measured stress data. However, the random of the measured data is not considered. In this paper, a new method was established to compute the equivalent stress amplitude to evaluate the fatigue damage based on the measurable randomness, since the equivalent stress is the key parameter for assessment of structure fatigue life and load derivation. The equivalent stress amplitude of a high-speed train welded bogie frame was found to obey normal distribution under uniform operation route that verified by on-track dynamic stress data, and the proposed model is, in effect, an improved version of the mathematical model used to calculate the equivalent stress amplitude. The data of a long-term, on-track dynamic stress test program was analyzed to find that the normal distribution parameters of equivalent stress amplitude values differ across different operation route. Thus, the fatigue damage of the high-speed train welded bogie frame can be evaluated by the proposed method if the running schedule of the train is known a priori. The results also showed that the equivalent stress amplitude of the region connected to the power system is more random than in other regions of the bogie frame. | Guangxue Yang Meng Wang Qiang Li Ran Ding | 2019 | Chinese Journal of Mechanical Engineering2019,32,3: | 4 |
| 20 | Digital mapping of soil salinization based on Sentinel-1 and Sentinel-2 data combined with machine learning algorithms显示文摘Soil salinization is one of the most important causes of land degradation and desertification,especially in arid and semi-arid areas.The dynamic monitoring of soil salinization is of great significance to land management,agricultural activities,water quality,and sustainable development.The remote sensing images taken by the synthetic aperture radar(SAR)Sentinel-1 and the multispectral satellite Sentinel-2 with high resolution and short revisit period have the potential to monitor the spatial distribution of soil attribute information on a large area;however,there are limited studies on the combination of Sentinel-1 and Sentinel-2 for digital mapping of soil salinization.Therefore,in this study,we used topography indices derived from digital elevation model(DEM),SAR indices generated by Sentinel-1,and vegetation indices generated by Sentinel-2 to map soil salinization in the Ogan-Kuqa River Oasis located in the central and northern Tarim Basin in Xinjiang of China,and evaluated the potential of multi-source sensors to predict soil salinity.Using the soil electrical conductivity(EC)values of 70 ground sampling sites as the target variable and the optimal environmental factors as the predictive variable,we constructed three soil salinity inversion models based on classification and regression tree(CART),random forest(RF),and extreme gradient boosting(XGBoost).Then,we evaluated the prediction ability of different models through the five-fold cross validation.The prediction accuracy of XGBoost model is better than those of CART and RF,and soil salinity predicted by the three models has similar spatial distribution characteristics.Compared with the combination of topography indices and vegetation indices,the addition of SAR indices effectively improves the prediction accuracy of the model.In general,the method of soil salinity prediction based on multi-source sensor combination is better than that based on a single sensor.In addition,SAR indices,vegetation indices,and topography indices are all effective variables for soil salinity prediction.Weighted Difference Vegetation Index(WDVI)is designated as the most important variable in these variables,followed by DEM.The results showed that the high-resolution radar Sentinel-1 and multispectral Sentinel-2 have the potential to develop soil salinity prediction model. | Guolin Ma Jianli Ding Lijng Han Zipeng Zhang Si Ran | 2021 | Regional Sustainability2021,2,2: | 4 |