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45篇 您的检索式:作者名="Degui Li"
    题名 作者 年代 出处 被引量
1Dual-specificity histone demethylase KIAA1718 (KDM7A) regulates neural differentiation through FGF4显示文摘histone H3 离氨酸的 Dimethylations 9 和离氨酸 27 是与抄写压抑联系的重要 epigenetic 标记。这里,我们作为为这二个镇压标记特定的新奇 histone demethylase 识别了 KIAA1718 (KDM7A ) 。用老鼠胚胎的干细胞,我们证明那 KIAA1718 表情在神经区别的早阶段增加了。基因击倒堵住的神经区别和效果被野类型的人的基因,并且不由催化地不活跃的异种救。另外, KIAA1718 的 overexpression 加速了神经区别。我们提供 KDM7A 的支持 neural 区别效果通过 FGF4 的直接 transcriptional 激活被调停的证据,一个信号分子在神经区别含有。因此,我们的学习识别了通过 FGF4 调整神经区别的双特性的 histone demethylase。Chengyang Huang Yang Xiang Yanru Wang Xia Li Longyong Xu Ziqi Zhu Ting Zhang Qingqing Zhu Kejing Zhang Naihe Jing Charlie Degui Chen 2010Cell Research2010,20,2:15
2Overexpressed miR-9 promotes tumor metastasis via targeting E-cadherin in serous ovarian cancer显示文摘MicroRNAs (miRNAs ) 玩在在各种各样的癌症的发展和前进的关键角色。不正常的 miR-9 表示仍然保持模糊,并且卵巢的癌症的变形前进上的一致都没被到达。在这研究,从生物信息学分析的结果证明 E-cadherin mRNA 的 3-UTR 被 miR-9 直接调整。酶记者试金结果证实 miR-9 能直接指向这 3-UTR。在卵巢的癌症织物的 miR-9 和 E-cadherin 表示被 qRT-PCR 确定。移植和侵略被在 SKOV3 和 A2780 愈合弯屈和 Transwell 系统试金检测。qRT-PCR 和西方的污点被执行检测上皮 ? 间充质的联系转变的 mRNA 和蛋白质。Immunofluorescence 技术被用来分析表示和 E-cadherin, N-cadherin,和 vimentin 的 subcellular 本地化。结果证明 miR-9 经常与配对的主要的相比是在变形浆液的卵巢的癌症织物的 upregulated。miR-9 的 Upregulation 能 downregulate E-cadherin 的表示但是 upregulate 间充质的标记(N-cadherin 和 vimentin ) 的表示。miR-9 的 Overexpression 能在卵巢的癌症支持房间移植和侵略,并且这些进程能有效地经由 miR-9 禁止者被禁止。因此,我们的学习证明 miR-9 可以经由指向 E-cadherin 和一条新奇潜在的治疗学的途径控制卵巢的癌症的转移支持卵巢的癌症转移。Bo Zhou Hongbin Xu Meng Xia Chaoyang Sun Na Li Ensong Guo Lili Guo Wanying Shan Hao Lu Yifan Wu Yuan Li Degui Yang Danhui Weng Li Meng Junbo Hu Ding Ma Gang Chen Kezhen Li 2017Frontiers of Medicine2017,11,2:10
3Genetic characterization and linkage disequilibrium mapping of resistance to gray leaf spot in maize(Zea mays L.)显示文摘Gray leaf spot(GLS),caused by Cercospora zeae-maydis,is an important foliar disease of maize(Zea mays L.)worldwide,resistance to which is controlled by multiple quantitative trait loci(QTL).To gain insights into the genetic architecture underlying the resistance to this disease,an association mapping population consisting of 161 inbred lines was evaluated for resistance to GLS in a plant pathology nursery at Shenyang in 2010 and 2011.Subsequently,a genome-wide association study,using 41,101 single-nucleotide polymorphisms(SNPs),identified 51 SNPs significantly(P<0.001)associated with GLS resistance,which could be converted into 31 QTL.In addition,three candidate genes related to plant defense were identified,including nucleotidebinding-site/leucine-rich repeat,receptor-like kinase genes similar to those involved in basal defense.Two genic SNPs,PZE-103142893 and PZE-109119001,associated with GLS resistance in chromosome bins 3.07 and 9.07,can be used for marker-assisted selection(MAS)of GLS resistance.These results provide an important resource for developing molecular markers closely linked with the target trait,enhancing breeding efficiency.Liyu Shi Xiangling Lv Jianfeng Weng Hanyong Zhu Changlin Liu Zhuanfang Hao Yu Zhou Degui Zhang Mingshun Li Xiaoke Ci Xinhai Li Shihuang Zhang 2014The Crop Journal2014,2,Z1:9
4PHF8 is a histone H3K9me2 demethylase regulating rRNA synthesis显示文摘histone H3 离氨酸 9 的 Dimethylation (H3K9me2 ) 是与抄写压抑联系的一个重要 epigenetic 标记。这里,我们识别了 PHF8, JmjC-domain-containing 蛋白质,为这个镇压标记特定的 histone demethylase。Recombinant 全身的野类型蛋白质能把 methylation 从 H3K9me2 移开,但是到丙氨酸 H247A 的保存 histidine 的变化废除 demethylase 活动。Overexpressed 外长的 PHF8 是 colocalized, B23 染色。内长的 PHF8 也是有 B23 和 fibrillarin 的 colocalized,二生长得很好的核蛋白质,建议那 PHF8 在核是局部性的并且可以调整 rRNA 抄写。确实, PHF8 跳了到 rDNA 基因的倡导者区域。减少的 PHF8 击倒 rRNA 的表示,和基因的 overexpression 导致了 rRNA 的 upregulation 抄本。附随地, H3K9me2 水平在 PHF8 击倒的房间在 rDNA 基因的倡导者区域被提高并且当野类型然而并非催化地不活跃的 H247A 变异的 PHF8 是 overexpressed 时,显著地减少了。因此,我们的学习为调整 rRNA 抄写的 H3K9me2 识别了 histone demethylase。Ziqi Zhu Yanru Wang Xia Li Yiqin Wang Longyong Xu Xiang Wang Tianliang Sun Xiaobin Dong Lulu Chen Hailei Mao Yi Yu Jingsong Li Pin Adele Chen Charlie Degui Chen 2010Cell Research2010,20,7:7
5A sequence of 28S rRNA-derived small RNAs is enriched in mature sperm and various somatic tissues and possibly associates with inflammation显示文摘Chu, Chen Yu, Lu Wu, Bin Ma, Li Gou, Lan-Tao He, Miao Guo, Yunli Li, Zhi-Tong Gao, Wei Shi, Huijuan Liu, Mo-Fang Wang, Hongyan Chen, Charlie Degui Drevet, Joel R. Zhou, Yuchuan Zhang, Yonglian 2017Journal of Molecular Cell Biology2017,9,3:6
6The histone H3 lysine-27 demethylase Jmjd3 plays a critical role in specific regulation of Th17 cell differentiation显示文摘Interleukin(IL)17-producing T helper(Th17)cells play critical roles in the clearance of extracellular bacteria and fungi as well as the pathogenesis of various autoimmune diseases,such as multiple sclerosis,psoriasis,and ulcerative colitis.Although a global transcriptional regulatory network of Th17 cell differentiation has been mapped recently,the participation of epigenetic modifications in the differentiation process has yet to be elucidated.We demonstrated here that histone H3 lysine-27(H3K27)demethylation,predominantly mediated by the H3K27 demethylase Jmjd3,crucially regulated Th17 cell differentiation.Activation of naı¨ve CD41 T cells immediately induced high expression of Jmjd3.Genetic depletion of Jmjd3 in CD41 T cells specifically impaired Th17 cell differentiation both in vitro and in vivo.Ectopic expression of Jmjd3 largely rescued the impaired differentiation of Th17 cells in vitro in Jmjd3-deficientCD41 T cells.Importantly,Jmjd3-deficient mice were resistant to the induction of experimental autoimmune encephalomyelitis(EAE).Furthermore,inhibition of the H3K27 demethylase activity with the specific inhibitor GSK-J4 dramatically suppressed Th17 cell differentiation in vitro.At the molecular level,Jmjd3 directly bound to and reduced the level of H3K27 trimethylation(me3)at the genomic sites ofRorc,which encodes the masterTh17 transcription factorRorgt,and Th17 cytokine genes such as Il17,Il17f,and Il22.Therefore,our studies established acritical role of Jmjd3-mediatedH3K27demethylation inTh17 cell differentiation andsuggest that Jmjd3 can be a novel therapeutic target for suppressing autoimmune responses.Zhi Liu Wei Cao Longxia Xu Xi Chen Yu Zhan Qian Yang Sanhong Liu Pengfei Chen Yuhang Jiang Xiaohua Sun Yu Tao Yiming Hu Cuifeng Li Qi Wang Ying Wang Charlie Degui Chen Yufang Shi Xiaoren Zhang 2015Journal of Molecular Cell Biology2015,7,6:6
7Identification of Functional Genetic Variations Underlying Drought Tolerance in Maize Using SNP Markers显示文摘Single nucleotide polymorphism (SNP) is a common form of genetic variation and popularly exists in maize genome. An Illumina GoldenGate assay with 1 536 SNP markers was used to genotype maize inbred lines and identified the functional genetic variations underlying drought tolerance by association analysis. Across 80 lines, 1 006 polymorphic SNPs (65.5% of the total) in the assay with good call quality were used to estimate the pattern of genetic diversity, population structure, and familial relatedness. The analysis showed the best number of fixed subgroups was six, which was consistent with their original sources and results using only simple sequence repeat markers. Pairwise linkage disequilibrium (LD) and association mapping with phenotypic traits investigated under water-stressed and well-watered regimes showed rapid LD decline within 100-500 kb along the physical distance of each chromosome, and that 29 SNPs were associated with at least two phenotypic traits in one or more environments, which were related to drought-tolerant or drought-responsive genes. These drought-tolerant SNPs could be converted into functional markers and then used for maize improvement by marker-assisted selection.Zhuanfang Hao Xinhai Li Chuanxiao Xie Jianfeng Weng Mingshun Li Degui Zhang Xiaoling Liang Lingling Liu Sisi Liu Shihuang Zhang 2011Journal of Integrative Plant Biology2011,53,8:5
8A Class of Fast Algorithms in Real-Time Simulation显示文摘A class of hybrid algorithms of real-time simulation based on evaluation of non-integerstep right-hand side function are presented in this paper. And some results of the convergence and stability of the algorithms are given. Using the class of algorithms, evaluation for the right-hand side function is needed once in every integration-step. Moreover, comparing with the other methods with the same amount of work, their numerical stability regions are larger and the method errors are smaller, and the numerical experiments show that the algorithms are very effective.Zhu Zhenmin & Liu Degui(Beijing Institute of Computer Application and Simulation Technology, 100854, P. R. China)Li Shoufu(Mathematics Department of Xiangtan University, 411105, P. R. China) 1999Journal of Systems Engineering and Electronics1999,10,4:4
9Structural insights into a dual-specificity histone demethylase ceKDM7A from Caenorhabditis elegans显示文摘Histone 离氨酸 methylation 能被 JmjC 包含域的蛋白质在 sequence-state-specific 和 methylation-state-specific 举止移开。然而,底层特性怎么样,决定,酶怎么被调整,大部分是未知的。我们最近发现了那 ceKDM7A,一个哲学博士 -- 并且 JmjC 包含域的蛋白质,是为 H3K9me2 特定的 histone demethylase, H3K27me2,和 PHD 摸绑定到 H3K4me3 指南在 vivo 的 demethylation 活动。为了为酶的活动和 PHD 的功能提供结构的卓见进分子的机制,摸,我们与包含 H3K4me3, H3K9me2,和 H3K27me2 修正的各种各样的联合的单身者或二肽一起在 apo 形式并且在建筑群解决了酶的六水晶结构。结构显示 H3K9me2 和 H3K27me2 以一种类似的方式与 ceKDM7A 交往,并且肽绑定特性被特定的相互作用的一个网络决定。结构的几何测量也揭示了与 PHD 手指和 H3K9me2 界限联系到 JmjC 领域的那 H3K4me3 从二个分开的分子,建议 trans-histone 肽绑定机制。因此,我们的全身的结构的研究重要地由催化领域而且更多揭示底层识别不仅,为 H3K9me2 和 H3K27me2 的 ceDKM7A 的双特性的分子的机制。Ying Yang Lulu Hu Ping Wang Haifeng Hou Yan Lin Yi Liu Ze Li Rui Gong Xiang Feng Lu Zhou Wen Zhang Yuhui Dong Huirong Yang Hanqing Lin Yiqin Wang Charlie Degui Chen Yanhui Xu 2010Cell Research2010,20,8:3
10Some Techniques for Solving Ordinary Differential Equations with Discontinuities in Real-time Simulation显示文摘SomeTechniquesforSolvingOrdinaryDifferentialEquationswithDiscontinuitiesinReal-timeSimulation¥XieYajun;LiuDegui&LiBohu(Beijin...Xie Yajun Liu Degui & Li Bohu(Beijing Institute of Computer Application and Simulation Technology,P.O.Box 3929,Beijing 100854,P.R.China) 1996Journal of Systems Engineering and Electronics1996,7,3:2
11Highly sensitive fluorescence detection of chloride ion in aqueous solution with Ag-modified porous g-C_(3)N_(4) nanosheets显示文摘The porous g-C_(3)N_(4)(PCN)nanosheets are successfully synthesized and further modified with nano-sized Ag by a simple wet-chemical process.Intere stingly,the Ag-modified porous g-C_(3)N_(4)(Ag-PCN)nanosheets exhibit competitive fluorescence detection performance of chloride ion(Cl)in aqueous solutio n.Under the optimized conditions,the concentration of Cl could be quantitative analyzed with the Ag-PCN in a wide detection range from 0.5 mmol/L to 0.1 mol/L,with a low detection limitation of 0.06 mmol/L.It is confirmed that the fluorescence of PCN could be effectively decayed by the photoinduced charge transfer via the adsorbed Cl for trapping holes,mainly by means of the time-resolved fluorescence and surface photo voltage spectra.The porous structure and modified Ag promote the adsorption of Cl on resulting Ag-PCN,leading to excellent fluorescence detection for Cl.This work provides a feasible route to develop a fluorescence detection of Cl with g-C_(3)N_(4) nanosheets in environment water.Zishu Zhang Ying Gao Peng Li Binhong Qu Zhiyuan Mu Yang Liu Yang Qu Degui Kong Qing Chang Liqiang Jing 2020Chinese Chemical Letters2020,31,10:2
12Knockout of glutathione peroxidase 5 down-regulates the piRNAs in the caput epididymidis of aged mice显示文摘The mammalian epididymis not only plays a fun dame ntal role in the maturati on of spermatozoa,but also provides protecti on agai nst various stressors.The foremost among these is the threat posed by oxidative stress,which arises from an imbalance in reactive oxygen species and can elicit damage to cellular lipids,proteins,and nucleic acids.In mice,the risk of oxidative damage to spermatozoa is mitigated through the expression and secretion of glutathione peroxidase 5(GPX5)as a major luminal scavenger in the proximal caput epididymidal segment.Accordingly,the loss of GPX5^-/-mediated protection leads to impaired DNA integrity in the spermatozoa of aged Gpx57 mice.To explore the underlying mechanism,we have conducted transcriptomic analysis of caput epididymidal epithelial cells from aged(13 months old)Gpx5^-/-m mice.This analysis revealed the dysregulation of several thousand epididymal mRNA transcripts,in eluding the downregulation of a subgroup of piRNA pathway gen es,in aged Gpx5^-/-mice.In agreeme nt with these fin dings,we also observed the loss of piRNAs,which potentially bind to the P-element-induced wimpy testis(PlWI)-like proteins PIWIL1 and PIWIL2.The absence of these piRNAs was correlated with the elevated mRNA levels of their putative gene targets in the caput epididymidis of Gpx5^-/-mice.Importantly,the oxidative stress response genes tend to have more targeting piRNAs,and many of them were among the top increased genes upon the loss of GPX5^-/-.Taken together,our findings suggest the existence of a previously uncharacterized somatic piRNA pathway in the mammalian epididymis and its possible invoIvement in the aging and oxidative stress-mediated responses.Chen Chu Lu Yu Joelle Henry-Berger Yan-Fei Ru Ayhan Kocer Alexandre Champroux Zhi-Tong Li Miao He Sheng-Song Xie Wu-Bin Ma Min-Jie Ni Zi-Mei Ni Yun-Li Guo Zhao-Liang Fei Lan-Tao Gou Qiang Liu Samanta Sharma Yu Zhou Mo-Fang Liu Charlie Degui Chen Andrew L Eamens Brett Nixon Yu-Chuan Zhou Joel R Drevet Yong-Lian Zhang 2020Asian Journal of Andrology2020,22,6:2
13Mice generated after round spermatid injection into haploid two-cell blastomeres显示文摘Hui Yang Linyu Shi Charlie Degui Chen Jinsong Li 2011Cell Research2011,21,5:2
14A Class of Parallel Algorithms of Real-TimeNumerical Simulation for Stiff Dynamic System显示文摘In this paper a class of real-time parallel modified Rosenbrock methods of numerical simulation is constructed for stiff dynamic systems on a multiprocessor system, and convergence and numerical stability of these methods are discussed. A-stable real-time parallel formula of two-stage third-order and A(α)-stable real-time parallel formula with o ≈ 89.96° of three-stage fourth-order are particularly given. The numerical simulation experiments in parallel environment show that the class of algorithms is efficient and applicable, with greater speedup.Cao Xuenian Liu Degui Li Shoufu 2000Journal of Systems Engineering and Electronics2000,11,4:2
15Imaging and Spectrum Diagnostics of Air Arc Plasma Characteristics 显示文摘LI Xingwen CHEN Degui LIU Hongwu 2004IEEE Trans on Plasma Sci2004,32,6:1
16Experimental Investigation on the Arc Motion with Different Configurations of Quenching Chamber in AC Contactor 显示文摘CHEN Degui DAI Ruicheng LI Xingwen 2006IEICE Trans on Electronics2006,89,8:1
17A Novel Optical Fiber Measurement System of Arc Motion in Molded Case Circuit Breakers 显示文摘LI Xingwen CHEN Degui LIU Hongwu 2004IEICE Trans on Electronics2004,87,8:1
18Study of the Influence of Arc Ignition Position on Arc Motion in Low Voltage Circuit Breaker 显示文摘LI Xingwen CHEN Degui DAI Ruicheng 2007IEEE Trans on Plasma Sci2007,35,2:1
19Kernel lysine content does not increase in some maize opaque2 mutants显示文摘Gang Zhao Mingshun Li Degui Zhang Xinhai Li Zikai Wu Xiaoke Ci Chuanxiao Xie Li Bai Zhenyu Lu Liang Chen Zhuanfang Hao Shihuang Zhang 2012Planta2012,,1:1
20Functional limit theorem for moving average processes generated by dependent random variables显示文摘让 X t , t ≥ 1 是 X t =∑ j=0 b j ξ t-j , 在哪儿 b j , j ≥ 0 是实数和 ξ t ,-∞ < t < ∞ 是严格地静止的 φ-mixing 随机变量的一个二倍地无限的序列。在 b j , j ≥ 0 它必要那 X t , t ≥ 1 是长存储器进程或线性进程,我们学习 S n (s)=∑ t=1 [ns] X t ( 适当地使正常化) 。什么时候 X t , t ≥ 1 是一个长记忆过程,我们建立一条功能的限制定理。什么时候 X t , t ≥ 1 是一个线性过程,我们不仅为 X t , t ≥ 1,而且在 ξ t ,-∞ < t < ∞ 并且 b j , j ≥ 0。最后,我们给我们的结果的一些应用。LIN Zhengyan LI Degui 2006Progress in Natural Science:Materials International2006,16,3:1
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