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1Prevalence of Autism Spectrum Disorder in China:A Nationwide Multi-center Population-based Study Among Children Aged 6 to 12 Years显示文摘This study aimed to obtain the first national estimate of the prevalence of autism spectrum disorder(ASD) in Chinese children.We targeted the population of 6 to 12-year-old children for this prevalence study by multistage convenient cluster sampling.The Modified Chinese Autism Spectrum Rating Scale was used for the screening process.Of the target population of 142,086 children,88.5%(n=125,806) participated in the study.A total of 363 children were confirmed as having ASD.The observed ASD prevalence rate was 0.29%(95% CI:0.26%-0.32%) for the overall population.After adjustment for response rates,the estimated number of ASD cases was867 in the target population sample,thereby achieving an estimated prevalence of 0.70%(95% CI:0.64%-0.74%).The prevalence was significantly higher in boys than in girls(0.95%;95% CI:0.87%-1.02% versus 0.30%;95%CI:0.26%-0.34%;P <0.001).Of the 363 confirmed ASD cases,43.3% were newly diagnosed,and most of those(90.4%) were attending regular schools,and 68.8% of the children with ASD had at least one neuropsychiatric comorbidity.Our findings provide reliable data on the estimated ASD prevalence and comorbidities in Chinese children.Hao Zhou Xiu Xu Weili Yan Xiaobing Zou Lijie Wu Xuerong Luo Tingyu Li Yi Huang Hongyan Guan Xiang Chen Meng Mao Kun Xia Lan Zhang Erzhen Li Xiaoling Ge Lili Zhang Chunpei Li Xudong Zhang Yuanfeng Zhou Ding Ding Andy Shih Eric Fombonne Yi Zheng Jisheng Han Zhongsheng Sun Yong-hui Jiang Yi Wang LATENT-NHC Study Team 2020Neuroscience Bulletin2020,36,9:158
22016 Chinese expert consensus and guidelines for the diagnosis and treatment of papillary thyroid microcarcinoma显示文摘The incidence of papillary thyroid carcinoma(PTC)has exponentially increased in recent years.Papillary thyroid microcarcinoma(PTMC)accounts for the majority of the reported cases of PTC.The debates and crucial issues in PTMC management have received researchers'attention.To further improve the clinical management of PTMC in China,Ming Gao Minghua Ge Qinghai Ji Ruochuan Cheng Hankui Lu Haixia Guan Li Gao Zhuming Guo Tao Huang Xiaoming Huang Xiaoming Li Yansong Lin Qinjiang Liu Xin Ni Yi Pan Jianwu Qin Zhongyan Shan Hui Sun Xudong Wang Zhengang Xu Yang Yu Daiwei Zhao Naisong Zhang ShengZhang Ying Zheng Jingqiang Zhu Dapeng Li Xiangqian Zheng 2017Cancer Biology & Medicine2017,14,3:23
3Current status of diagnosis and treatment of bladder cancer in China-Analyses of Chinese Bladder Cancer Consortium database显示文摘Objective:To investigate current status of diagnosis and treatment of bladder cancer in China.Methods:A database was generated by Chinese Bladder Cancer Consortium(CBCC).From January 2007 to December 2012,14,260 cases from 44 CBCC centers were included.Data of diagnosis,treatment and pathology were collected.Results:The average age was 63.5 year-old and most patients were male(84.3%).The most common histologic types were urothelial carcinoma(91.4%),adenocarcinoma(1.8%),and squamous carcinoma(1.9%).According to 1973 and 2004 WHO grading system,42.0%,41.0%,and 17.0% of patients were grade 1,2,and 3,and 16.0%,48.7%,and 35.3% of patients were papillary urothelial neoplasms of low malignant potential,low,and high grade,respectively.Non-muscle invasive bladder cancer(NMIBC)and muscle invasive bladder cancer(MIBC)were 25.2% and 74.1%,respectively(0.8% not clear).Carcinoma in situ was only 2.4%.Most patients were diagnosed by white-light cystoscopy with biopsy(74.3%).Fluorescence and narrow band imaging cystoscopy had additional detection rate of 1.0% and 4.0%,respectively.Diagnostic transurethral resection(TUR)provided detection rate of 16.9%.Most NMIBCs were treated with TUR(89.2%).After initial TUR,2.6%accepted second TUR,and 45.7%,69.9%,and 58.7% accepted immediate,induced,and maintenance chemotherapy instillation,respectively.Most MIBCs were treated with radical cystectomy(RC,59.7%).Laparoscopic RCs were 35.1%,while open RC 63.4%.Extended and standard pelvic lymph node dissection were 7% and 66%,respectively.Three most common urinary diversions were orthotopic neobladder(44%),ileal conduit(31%),and ureterocutaneostomy(23%).Only 2.3% of patients accepted neo-adjuvant chemotherapy and only 18%of T3 and T4 patients accepted adjuvant chemotherapy.Conclusion:Disease characteristics are similar to international reports,while differences of diagnosis and treatment exist.This study can provide evidences for revisions of the guideline on bladder cancer in China.Kaiwen Li Tianxin Lin Wei Xue Xin Mu Enci Xu Xu Yang Fubao Chen Guangyong Li Lulin Ma Guoliang Wang Chaozhao Liang Haoqiang Shi Ming Li Mao Tang Xueyi Xue Yisong Lv Yaoliang Deng Chengyang Li Zhiwen Chen Xiaozhou Zhou Fengshuo Jin Xudong Liu Jinxin Wei Lei Shi Xin Gou Weiyang He Liqun Zhou Lin Cai Baiye Jin Guanghou Fu Xiangbo Kong Hongyan Sun Ye Tian Lang Feng Tiejun Pan Yiyi Wu Dongwen Wang Hailong Hao Benkang Shi Yaofeng Zhu Qiang Wei Ping Han Changli Wu Dawei Tian Zhangqun Ye Zheng Liu Zhiping Wang Junqiang Tian Lin Qi Minfeng Chen Wei Li Jinchun Qi Gongxian Wang Longlong Fu Zhaolin Sun Guangheng Luo Zhoujun Shen Zhaowei Zhu Jinchun Xing Zhun Wu Dong Wei Xin Chen Yanqun Na Hongfeng Guo Chunxi Wang Zhihua Lu Chuize Kong Yang Liu Jin Yang Jianyun Hu Xin Gao Jielin Li Changjun Yin Pu Li Shan Chen Zhen Du Jiongming Li Yongji Yan Xu Zhang Shuang Huang Fangjian Zhou Zhiling Zhang Yinghao Sun Shuxiong Zeng Song Cen Jiaquan Zhou Hanzhong Li Jin Wen Jian Huang 2015Asian Journal of Urology2015,2,2:21
4A Possible Dynamic Mechanism for Rapid Production of the Extreme Hourly Rainfall in Zhengzhou City on 20 July 2021显示文摘In this study,the unprecedented extreme rainfall event during 19-20 July 2021,which caused devastating flooding in Zhengzhou City and its nearby areas,is examined based on observational data analysis and WRF model 40-h simulations on 1-km horizontal resolution.The results show that the model successfully reproduces(i)major synopticscale weather systems(i.e.,the western Pacific subtropical high,the Tibetan high,two typhoons,and the Huang-Huai cyclone),(ii)convective initiation along the east to north edge of the Songshan Mountain,where orographic lifting is obvious,and(iii)subsequent formation of the convective storm producing the extreme rainfall in Zhengzhou.In particular,the model generates the maximum rainfall rate of 233 mm h^(-1)and 40-h accumulated rainfall of 704 mm,corresponding well to the observed extreme values of 201.9 mm h^(-1)and 818 mm,at nearly observed timing and location.Importantly,the model reproduces an intense quasi-stationary,well-organized meso-γ-scale convective system,surrounded by an arc-shaped convergence zone,allowing the development of convective updrafts in a three-quarter circle around the convective system,in a way similar to“multidirectional pumping,”attracting all associated precipitation overlaid and concentrated into the same trailing region to generate the extreme hourly rainfall over Zhengzhou.Our study emphasizes the significant contribution of the unique dynamic structure of the well-organized meso-γ-scale convective system to the record-high hourly rainfall.A possible dynamic mechanism for short-time extreme rainfall production is proposed.That is,the arc-shaped convergence zone of the mesoscale convective system,acting like multidirectional lifting pumps,transports precipitation from different directions into the same region,and thus produces the extreme rainfall.The results gained herein may shed new light on better understanding and forecasting of short-time extreme rainfall.Jinfang YIN Haodong GU Xudong LIANG Miao YU Jisong SUN Yanxin XIE Feng LI Chong WU 2022Journal of Meteorological Research2022,36,1:17
5Spatio-temporal variation of photosynthetically active radiation in China in recent 50 years显示文摘在中国上基于 weather/ecological 车站的长期的测量数据,计算并且生产每年平均、平均 seasonally 的光合地活跃的放射(同等) 的这份报纸从 1961 ~ 2007 的空间数据,用 climatological 计算和 spatialization 技术。在中国在上的每年平均、平均 seasonally 的同等空间数据的时间空间的变化特征最近 50 年与 Mann-Kendall 趋势分析方法和 GIS 被分析空间分析技术。结果显示出那:(1 ) 总体上,同等的空间分发越过中国复杂、不同类,与在中国的东方、南部的部分的更低的同等和在西方的部分的更高的同等。在中国上的吝啬的年度同等从 17.7 摩尔 m ? 2 d ? 1 ~ 39.5 摩尔 m ? 2 d ? 1。(2 ) 在中国上的每个象素的每年平均、平均 seasonally 的同等总体上被平均,平均数与变动进程显然珍视衰落,并且每年平均的同等的变化的率是 ? 0.138 摩尔 m ? 2 d ? 1/10a。在四个季节之中的变化振幅是不同的,与在里面的最大的落下夏天,和同等的下降速度在 1990 年代,速度在以后慢下来前是更快的。(3 ) 由每个象素的分析证明那同等显著地衰退(=0.05 ) 在中国的大多数部分。夏天和冬季在同等的 interannual 可变性起更重要的作用。诺思中国总是是在四个季节的一个减少的地区,当 Qinghai 西藏高原的西北转弯是在四个季节的一个增加的地区时。(4 ) 同等的 interannual 可变性的空间分布在不同时期之中变化。在某个区域的同等的 interannual 可变性不仅在四个季节之中,而且在不同时期之中是不同的。ZHU Xudong HE Honglin LIU Min YU Guirui SUN Xiaomin GAO Yanhua 2010Journal of Geographical Sciences2010,20,6:12
6Current aging research in China显示文摘微型评论在中国在国家老化研究策略上源自一个最近的会议在中国讨论老化研究的部件和挑战。加亮,资助状况和很多个研究队的主要努力研究的最近的专业的突出的例子是成就。最后,作者们在中国讨论老化研究的潜在的目标和策略。Ruijuan Sun Heqi Cao Xudong Zhu Jun-Ping Liu Erdan Dong 2015Protein & Cell2015,6,5:12
7Overexpression of miR-30a in lung adenocarcinoma A549 cell line inhibits migration and invasion via targeting EYA2显示文摘MicroRNAs (miRNAs ) 是与癌症的致病有关的小非编码的 RNA 并且仔细的一个班。增加的证据显示 miR-30a 在癌症的发展期间起一个深刻作用。然而,在 non-small-cell 肺癌症(NSCLC ) 的 miR-30a 的功能仍然是模糊的。这里,我们发现 miR-30a 被 qRT-PCR 从 14 个病人在肺腺癌 A549 房间并且在织物样品减少,并且也发现在 A549 房间的 miR-30a 的 overexpression 由愈合创伤的试金禁止了移植和侵略然而并非房间增长和房间周期前进, matrigel 侵略试金,基于山的房间增长试金,和流动 基于cytometry 的房间周期分析分别地。我们进一步在肺腺癌房间行探索了 miR-30a-mediated 基因规定的潜在的机制。EYA2 是 miR-30a 的一个预言的目标,并且 EYA2 表示被 miR-30a 在乳癌房间禁止,这被发现了。我们证明 EYA2 是由在 A549 房间使用双酶的记者试金的 miR-30a 的一个直接目标并且证明 EYA2 蛋白质层次相反地在 A549 和 BEAS-2B 房间与 miR-30a 表示被相关。另外,我们也与表示向量和 miR-30a 模仿的 EYA2 由 cotransfection 在 A549 房间证实了 EYA2 overexpression 的营救效果。一起拿,我们的结果证明在肺腺癌 A549 房间的 miR-30a 的 overexpression 能禁止房间移植和侵略,它部分被归因于 EYA2 的减少表示。我们的调查结果建议 miR-30a 以后可以为肺腺癌的治疗被用作一个新潜在的目标。Yuncang Yuan Shangyong Zheng Qian Li Xudong Xiang Tangxin Gao Pengzhan Ran Lijuan Sun Qionglin Huang Fei Xie Jing Du Chunjie Xiao 2016Acta Biochimica et Biophysica Sinica2016,48,3:12
8Zircon U-Pb ages of granites at Changba and Huangzhuguan in western Qinling and implications for source nature显示文摘Mesozoic granitoids are widespread in the Qinling-Dabie-Sulu orogenic belt. Precise U-Pb dating on these granitoids can reveal the evolution of the continental collision orogen and thus provide information on the nature of magma sources. This study pre-sents zircon LA-ICP-MS U-Pb dating and whole-rock geochemical analyses for two intrusions at Changba and Huangzhuguan in western Qinling. Zircon U-Pb ages for central and marginal phases of the Huangzhuguang intrusion are 214±1 Ma and 213±3 Ma, respectively. Zircons from the Changba intrusion yield a dominant cluster with an U-Pb age of 213±2 Ma. Collectively, these ages are younger than ages of 220 to 240 Ma for ultrahigh-pressure metamorphism due to the continental collision between the South China Block and the North China Block, corresponding to syn-exhumation magmatism. Some inherited zircons occur in the Changba intrusion, yielding a weighted mean of 206Pb/238U ages at 757±14 Ma. This indicates that the Changba intrusion has the crustal source of mid-Neoproterozoic ages and a tectonic affinity to the South China Block. Geochemically, the two intrusuons are both rich in LILE and LREE but depleted in HFSE and HREE, similar to arc-type igneous rocks. The Huangzhuguang intrusion exhibits linear correlations between SiO2 and the other major oxides, implying chemical evolution from a cognate magma source. It contains mafic enclaves, suggesting possible mixing of felsic-mafic magmas. The Changba granite is rich in Si and K but poor in Fe and Mg as well as has a high value of Fe, suggesting strong differentiation of granitic magma. Therefore, the two intrusions were derived from the Late Triassic anatexis of the continental crust of different compositions in the northern margin of South China Block. This process may be coupled with exhumation of the subducted continental crust in the stage of late collision.WANG TianGang NI Pei SUN WeiDong ZHAO KuiDong WANG XuDong 2011Chinese Science Bulletin2011,56,7:11
9Investigation into the Formation, Structure, and Evolution of an EF4 Tornado in East China Using a High-Resolution Numerical Simulation显示文摘Devastating tornadoes in China have received growing attention in recent years, but little is known about their formation, structure, and evolution on the tornadic scale. Most of these tornadoes develop within the East Asian monsoon regime, in an environment quite different from tornadoes in the U.S. In this study, we used an idealized, highresolution(25-m grid spacing) numerical simulation to investigate the deadly EF4(Enhanced Fujita scale category 4)tornado that occurred on 23 June 2016 and claimed 99 lives in Yancheng, Jiangsu Province. A tornadic supercell developed in the simulation that had striking similarities to radar observations. The violent tornado in Funing County was reproduced, exceeding EF4(74 ms–1), consistent with the on-site damage survey. It was accompanied by a funnel cloud that extended to the surface, and exhibited a double-helix vorticity structure. The signal of tornado genesis was found first at the cloud base in the pressure perturbation field, and then developed both upward and downward in terms of maximum vertical velocity overlapping with the intense vertical vorticity centers. The tornado's demise was found to accompany strong downdrafts overlapping with the intense vorticity centers. One of the interesting findings of this work is that a violent surface vortex was able to be generated and maintained, even though the simulation employed a free-slip lower boundary condition. The success of this simulation, despite using an idealized numerical approach, provides a means to investigate more historical tornadoes in China.Dan YAO Haile XUE Jinfang YIN Jisong SUN Xudong LIANG Jianping GUO 2018Journal of Meteorological Research2018,32,2:10
10Attenuated Listeria monocytogenes as a cancer vaccine vector for the delivery of CD24, a biomarker for hepatic cancer stem cells显示文摘稀释 Listeria monocytogenes (LM ) 是为癌症疫苗的交货的有希望的候选人向量。在由介绍抗原的房间的吞噬作用以后,这个细菌刺激主要 histocompatibility 建筑群(MHC ) 我和 MHC-II 小径并且导致抗原特定的 T 淋巴细胞的增长。包含复制缺乏的 LM 种类 Δ 的基因修正的新策略; dalΔ dat (Lmdd ) 被开发了表示并且藏匿人的 CD24 蛋白质。CD24 是仔细与 hepatocellular 癌(HCC ) 的 apoptosis,转移和复发被联系的肝的癌症干细胞 biomarker。在在老鼠的静脉内的管理以后, Lmdd-CD24 首先在怒气和肝被散布并且没引起严重机关损害。Lmdd-CD24 有效地增加了干扰素(IFN ) 的数字 -γ-producing CD8 + T 房间和 IFN-γ分泌物。Lmdd-CD24 也提高了 IL-4- 和 IL-10-producing T 助手 2 房间的数字。Lmdd-CD24 疫苗的功效进一步对 Hepa1-6-CD24 肿瘤被调查,它腹股沟地被接种进老鼠。Lmdd-CD24 显著地在老鼠减少了肿瘤尺寸并且增加了他们的幸存。尤其是, T 规章的房间(Treg ) 的减小数并且特定的 CD8 +T 房间活动的改进在渗入肿瘤的淋巴细胞(TIL ) 被观察。这些结果对 HCC 建议 Lmdd-CD24 疫苗的一个潜在的应用程序。Yu Yang Jiajie Hou Zhe Lin Han Zhuo DianyuChen Xudong Zhang Yun Chen Beicheng Sun 2014Cellular & Molecular Immunology2014,11,2:9
11Study on the amplitude inversion of internal waves at Wenchang area of the South China Sea显示文摘The field experiment is conducted from April 16,2005 to July 20,2005 at Wenchang area east of Hainan Island(19°35'N,112°E) of China.Internal wave packets are observed frequently with thermistor chains during the experiment.Meanwhile,internal waves are also detected from a synthetic aperture radar(SAR) image on June 19,2005 and several other moderate-resolution imaging spectroradiometer(MODIS) images near a mooring position.The distance between the positive and negative peaks induced by the internal wave can be obtained from satellite images.Combined with remote sensing images and in situ data,a new method to inverse the amplitude of the internal wave is proposed based on a corrected nonlinear Schr?dinger(NLS) equation.Two relationships are given between the peak-to-peak distance and the characteristic wavelength of the internal wave for different nonlinear and dispersion coefficients.Based on the satellite images,the amplitude inversion of the internal waves are carried out with the NLS equation as well as the Kd V equation.The calculated amplitudes of the NLS equation are close to the observation amplitude which promise the NLS equation a reliable method.ZHANG Xudong WANG Jing SUN Lina MENG Junmin 2016Acta Oceanologica Sinica2016,35,7:8
12Decomposition Reaction of Mixed Rare Earth Concentrate and Roasted with CaO and NaCl显示文摘The reaction of the mixed rare earth concentrate including monazite ( REPO4 ) and bastnaesite ( REFCO3 )decomposed by CaO and NaCl additives at the temperature range from 100 to 1000 ℃ was studied by means of XRD and TG-DTA.The results show that when CaO and NaCl are not added, only REFCO3 can be decomposed at the temperature of 377 ~ 450 ℃.The decomposition products include REOF, RE2O3 and CeO2.However, REFCO3 can not be decomposed.When CaO is added, the decomposition reactions occur at the temperature range from 660 to 750 ℃.CaO has three decomposition functions: ( 1 ) REPO4 can be decomposed by CaO and the decomposition products include RE2O3 and Ca3 (PO4)2; (2) CaO can decompose REOF, and the decomposition products are RE2O3 and CaF2; (3)CaO can decompose REPO4 with CaF2, and the decomposition products are RE2 O3, Ca5 F( PO4 )3.The decomposition ratio of the mixed rare earth concentrate increased obviously, when CaO and NaC1 were added.NaC1 can supply the liquid for the reaction, improve the mass transfer process and accelerate the reaction.At the same time, NaC1 participated in the reaction that REPO4 was decomposed by CaO.Wu Wenyuan Hu Guangyong Sun Shuchen Chen Xudong Tu Ganfeng 2004Journal of Rare Earths2004,22,z1:7
13A draft sequence of the rice (Oryza sativa ssp. indica) genome显示文摘The sequence of the rice genome holds fundamental information for its biology, including physiology, genetics, development, and evolution, as well as information on many beneficial phenotypes of economic significance. Using a 'whole genome shotgun' approach, we have pro-duced a draft rice genome sequence of Oryza sativa ssp. in-dica, the major crop rice subspecies in China and many other regions of Asia. The draft genome sequence is constructed from over 4.3 million successful sequencing traces with an accumulative total length of 2214.9 Mb. The initial assembly of the non-redundant sequences reached 409.76 Mb in length, based on 3.30 million successful sequencing traces with a total length of 1797.4 Mb from an indica variant cultivar 93-11, giving an estimated coverage of 95.29% of the rice genome with an average base accuracy of higher than 99%. The coverage of the draft sequence, the randomness of the sequence distribution, and the consistency of BIG-ASSEM-BLER, a custom-designed software packageYU Jun, HU Songnian, WANG Jun,LI Songgang WONG Ka-Shu Gane, LIU Bin,DENG Yajun, DAI Li, ZHOU Yan,ZHANG Xiuqing, CAO Mengliang, LIU Jing,SUN Jiandong , TANG Jiabin, CHEN Yanjiong,HUANG Xiaobing, LIN Wei, YE Chen, TONG Wei,CONG Lijuan, GENG Jianing, HAN Yujun, LI Lin,LI Wei, HU Guangqiang, HUANG Xiangang,LI Wenjie, LI Jian, LIU Zhanwei, LI Long,LIU Jianping, Ql Qiuhui, LIU Jinsong, LI Li,WANG Xuegang, LU Hong, WU Tingling,ZHU Miao, Nl Peixiang, HAN Hua, DONG Wei,REN Xiaoyu, FENG Xiaoli, GUI Peng,LI Xianran, WANG Hao, XU Xin, ZHAI Wenxue,XU Zhao, ZHANG Jinsong, HE Sijie,ZHANG Jianguo, XU Jichen, ZHANG Kunlin,ZHENG Xianwu, DONG Jianhai, ZENG Wanyong,TAO Lin, CHEN Xuewei, HE Jun, LIU Daofeng,TIAN Wei, TIAN Chaoguang, XIA Hongai,LI Gang, GAO Hui, LI Ping, CHEN Wei ,WANG Xudong, ZHANG Yong, HU Jianfei,WANG Jing, LIU Song, YANG Jian,ZHANG Guangyu, XIONG Yuqing, LI Zhijie,MAO Long, ZHOU Chengshu, ZHU Zhen,CHEN Runsheng, HAO Bailin,ZHENG Weimou, CHEN Shouyi, QUO Wei,LI Guojie, LIU Siqi, HUANG Guyang,TAO Ming, WANG Jian, ZHU Lihuang,YUAN Longping& YANG HuanmingBeijing Genomics Institute/Center of Genomics & Bioinformatics, Chinese Academy of Sciences, Beijing 101300, China Hangzhou Genomics Institute/Institute of Bioinformatics of Zhejiang University/Key Laboratory of Bioinformatics of Zhejiang Province, Hangzhou 310007, China Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China National Hybrid Rice R & D Center, Changsha 410125, China Laboratory of Bioinformatics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China College of Life Sciences, Peking University, Beijing 100871, China Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1Q0080, China Digital China Ltd., Beijing 100080, China Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080, China Medical College, Xi’an Jiaotong University, Xi’an 710061, ChinaThese authors contributed equally to this work.Corresponding author.Corresponden 2001Chinese Science Bulletin2001,46,23:6
14Development of the triazole-fused pyrimidine derivatives as highly potent and reversible inhibitors of histone lysine specific demethylase1(LSD1/KDM1A)显示文摘Histone lysine specific demethylase 1(LSD1) has been recognized as an important modulator in post-translational process in epigenetics. Dysregulation of LSD1 has been implicated in the development of various cancers. Herein, we report the discovery of the hit compound 8 a(IC50=3.93 μmol/L) and further medicinal chemistry efforts, leading to the generation of compound 15 u(IC50=49 nmol/L, and Ki= 16 nmol/L), which inhibited LSD1 reversibly and competitively with H3 K4 me2, and was selective to LSD1 over MAO-A/B. Docking studies were performed to rationalize the potency ofcompound 15 u. Compound 15 u also showed strong antiproliferative activity against four leukemia cell lines(OCL-AML3, K562, THP-1 and U937) as well as the lymphoma cell line Raji with the IC50 values of 1.79, 1.30, 0.45, 1.22 and 1.40 μmol/L, respectively. In THP-1 cell line, 15 u significantly inhibited colony formation and caused remarkable morphological changes. Compound 15 u induced expression of CD86 and CD11 b in THP-1 cells, confirming its cellular activity and ability of inducing differentiation.The findings further indicate that targeting LSD1 is a promising strategy for AML treatment, the triazolefused pyrimidine derivatives are new scaffolds for the development of LSD1/KDM1 A inhibitors.Zhonghua Li Lina Ding Zhongrui Li Zhizheng Wang Fengzhi Suo Dandan Shen Taoqian Zhao Xudong Sun Junwei Wang Ying Liu Liying Ma Bing Zhao Pengfei Geng Bin Yu Yichao Zheng Hongmin Liu 2019Acta Pharmaceutica Sinica B2019,9,4:6
15Conservation of Jiaohe ancient earthen site in China显示文摘Earthen sites,which are mainly made of earth,are cultural heritages with historical,artistic and scientific values.Many extremely valuable earthen sites have been preserved in the arid areas in China.The earthen site of Jiaohe Ancient City is one of the earliest National Protected Important Cultural Heritage Sites.The Jiaohe Ancient City site exhibits all kinds of deteriorations,which can be found in the earthen sites in arid environments in China.Through a case study of the Jiaohe ancient earthen site,we present in this paper the comprehensive conservation technologies,including the mud bricklaying and reparation,wooden rod anchorage,crack grouting,surface potassium silicate(PS) penetration consolidation,and suspended steel beam ceiling,etc.Results of this case study showed that better conservation effects could be achieved by selecting proper PS penetration and crack grouting processes based on the deterioration characteristics of the earthen sites.The technology of mud bricklaying and reparation was also an effective method for preventing the earthen body from collapsing.Compared with traditional conservation technologies,the suspended steel beam ceiling technology could effectively reduce the negative impacts to the original state of the earthen site.As for unstable cliffs,a new method using composite anchor rod of bamboo and steel with massive loose earth was applied.Deformation monitoring and temporary supports were critical and indispensable measures for the safe of site conservation projects.Through years of monitoring and practical operation at the Jiaohe ancient earthen site,deterioration at the site has been effectively controlled.Zuixiong Li Xudong Wang Manli Sun Wenwu Chen Qinglin Guo Huyuan Zhang 2011Journal of Rock Mechanics and Geotechnical Engineering2011,3,3:6
16Large-area high quality PtSe2 thin film with versatile polarity显示文摘Two-dimensional(2D)materials have attracted increasing attention for their outstanding structural and electrical properties.However,for mass-production of field effect transistors(FETs)and potential applications in integrated circuits,large-area and uniform 2D thin films with high mobility,large on-off ratio,and desired polarity are needed to synthesize firstly.Here,a transfer-free growth method for platinum diselenide(PtSe2)films has been developed.The PtSe2 films have been synthesized with various thicknesses in centimeter-sized scale.Typical FET made from a few layer PtSe2 show p-type unipolar,with a high field-effect hole mobility of 6.2 cm^(2) V^(−1) s^(−1) and an on-off ratio of 5×10^(3).The versatile semimetal-unipolar-ambipolar transition in synthesized PtSe2 films is also firstly observed as the thickness thinning.This work realizes the large-scale preparation of PtSe2 with prominent electrical properties and provides a new strategy for polarity's modulation.Wei Jiang Xudong Wang Yan Chen Guangjian Wu Kun Ba Ningning Xuan Yangye Sun Peng Gong Jingxian Bao Hong Shen Tie Lin Xiangjian Meng Jianlu Wang Zhengzong Sun 2019InfoMat2019,1,2:5
17Properties of Hot-Pressed Al_2O_3-Fe Composites显示文摘Alumina-(0-20 vol. pct) iron composites were fabricated by hot-pressing of well-mixed alumina and iron powders at 1400℃ and 30 MPa for 30 mm. Hot-pressed bodies with nearly theoretical density were obtained for addition up to 10 vol. pct Fe, but relative density decreased gradually with further increase in Fe addition. The materials exhibit a homogeneous dispersion of Fe. Fracture strength of the composites exhibits a maximum value of 604 MPa at 15 vol. pct Fe, which is 1.5 times that of alumina alone. Fracture toughness increases with the increase in Fe content, reaching 7.5 MPa.m1/2 at 20 vol. pct Fe. The theoretical values of fracture toughness was calculated and compared with the experimental one. Toughening mechanisms of the composites are also discussed.M.M.El-Sayed Seleman, Xudong SUN and Liang ZUO Department of Materials Science and Engineering, Northeastern University, Shenyang 110006, China K.A.Khalil Powder Metallurgy Institute, Central South University, Changsha 410083, China 2001Journal of Materials Science & Technology2001,17,5:4
18Non-contact cylindrical rotating triboelectric nanogenerator for harvesting kinetic energy from hydraulics显示文摘Hydraulics provide a unique and widely existed mechanical energy source around us,such as in water or oil pipes,and sewers.Here,a non-contact cylindrical rotating triboelectric nanogenerator(TENG)was developed to harvest the mechanical energy from water flows.Operation of the TENG was based on the non-contact free-rotating between a curved Cu foil and a flexible nanostructured fluorinated ethylene propylene(FEP)polymer film.The free-standing distance between two rotating interfaces avoided abrading of electrode materials.The TENG was able to effectively convert mechanical energy of the water flow into electricity.When driven by water flow,the output voltage and current of the TENG reached 1,670 V and 13.4 uA,respectively.Without any energy storage component,the produced electricity could instantaneously power 12 white light emitting diodes(LEDs)bulbs and a digital timer.This non-contact rotating TENG would provide new opportunities for harvesting energy from many types of hydraulics as a self-sustainable power source for sensing,detection,and protection.Nan Zhang Cheng Qin Tianxing Feng Jun Li Zhirui Yang Xiupeng Sun Erjun Liang Yanchao Mao Xudong Wang 2020Nano Research2020,13,7:4
19Effects of nicotinamide and riboflavin on the biodesulfurization activity of dibenzothiophene by Rhodococcus erythropolis USTB-03显示文摘Rhodococcus erythropolis USTB-03 经由 DBT 作为一个结束产品在被变换成 2-hydroxybiphenyl (2HBP ) 的一条硫特定的小径是为 dibenzothiophene (DBT ) 的 biodesulfurization 的有希望的菌株。硫上的菸碱和核黄素的效果由 R.erythropolis USTB-03 的 DBT biodesulfurization 的特定的活动(SA ) 被调查。菸碱和核黄素被发现提高 SA 的表示,它以前没被报导。当 R.erythropolis USTB-03 在包含 10.0 mmol 的菸碱或 50.0 亩摩尔的核黄素的媒介上是成年的时, SA 从 68.0 左右被提起到超过 130 mmol 2HBP/(kg 干燥 cells-h ) 。当 R.erythropolis USTB-03 面对 5.0 mmol 的两菸碱和 25.0 umol 的核黄素是成年的时, SA 进一步被增加到 159.0 mmol 2HBP/(kg 干燥 cells-h ) 。这被建议黄素的减少的形式的生物合成单音的核苷酸(FMNH2 ) ,为 biodesulfurization 酶 Dsz C 和 A 的活动的必要辅酶,可能被菸碱和核黄素提高,它为 R.erythropolis USTB-03 的增加的 SA 负责。YAN Hai SUN Xudong XU Qianqian MA Zhao XIAO Chengbin Ning Jun 2008Journal of Environmental Sciences2008,20,5:4
20Exosomal PD-L1 induces osteogenic differentiation and promotes fracture healing by acting as an immunosuppressant显示文摘A moderate inflammatory response at the early stages of fracture healing is necessary for callus formation.Over-active and continuous inflammation,however,impairs fracture healing and leads to excessive tissue damage.Adequate fracture healing could be promoted through suppression of local over-active immune cells in the fracture site.In the present study,we achieved an enriched concentration of PD-L1 from exosomes(Exos)of a genetically engineered Human Umbilical Vein Endothelial Cell(HUVECs),and demonstrated that exosomes overexpressing PD-L1 specifically bind to PD-1 on the T cell surface,suppressing the activation of T cells.Furthermore,exosomal PD-L1 induced Mesenchymal Stem Cells(MSCs)towards osteogenic differentiation when pre-cultured with T cells.Moreover,embedding of Exos into an injectable hydrogel allowed Exos delivery to the surrounding microenvironment in a time-released manner.Additionally,exosomal PD-L1,embedded in a hydrogel,markedly promoted callus formation and fracture healing in a murine model at the early over-active inflammation phase.Importantly,our results suggested that activation of T cells in the peripheral lymphatic tissues was inhibited after local administration of PD-L1-enriched Exos to the fracture sites,while T cells in distant immune organs such as the spleen were not affected.In summary,this study provides the first example of using PD-L1-enriched Exos for bone fracture repair,and highlights the potential of Hydrogel@Exos systems for bone fracture therapy through immune inhibitory effects.Ze Lin Yuan Xiong Weilin Meng Yiqiang Hu Lili Chen Lang Chen Hang Xue Adriana CPanayi Wu Zhou Yun Sun Faqi Cao Guodong Liu Liangcong Hu Chenchen Yan Xudong Xie Chuanchuan Lin Kaiyong Cai Qian Feng Bobin Mi Guohui Liu 2022Bioactive Materials2022,7,7:4
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