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    题名 作者 年代 出处 被引量
1Trogocytosis of CD80 and CD86 by induced regulatory 7 cells显示文摘Peng Gu Julia Fang Gao Cheryl A D'Souza Aleksandra Kowalczyk Kuang-Yen Chou Li Zhang 2012Cellular & Molecular Immunology2012,9,2:7
2A 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
3血清netrin-1增加与缺血性脑卒中预后改善相关显示文摘先前的实验研究表明,血清netrin-1与缺血性脑卒中进展相关。进一步了解缺血性脑卒中患者中netrin-1的变化可能为缺血性脑卒中的预后评估提供新的思路。该研究旨在探讨血清netrin-1与缺血性脑卒中预后的关系。研究人员测定3346例中国急性缺血性脑卒中抗高血压试验(China antihypertensive trial in acute ischemic stroke,CATIS)中缺血性脑卒中患者基线血清netrin-1水平,所有患者均在脑卒中发病后3个月进行随访。主要观察指标是脑卒中发病后3个月内死亡和严重残疾(改良Rankin 量表评分≥3)。刘莉 叶鹏 Guo D Zhu Z Zhong C Peng H Wang A Xu T Peng Y Xu T Chen CS Li Q Ju Z Geng D Chen J Zhang Y He J 2019中华高血压杂志2019,27,5:6
4水稻叶片上表面气孔特征的变异显示文摘用硅胶压印技术观测水稻叶片正面的气孔密度、大小和开度,所得数据用GIMMS计算机软件绘制成气孔特征分布等值图。结果表明:不同取样时间气孔开度变异甚大;在叶片不同部位,以叶片中部的气孔开度较大,叶片基部的气孔开度较小;叶片顶部和边缘的气孔开度因测定时间而异。气孔大小和密度的分布也有很大的不均一性:叶片边缘气孔分布最多,叶片顶部气孔分布最少;保卫细胞则以叶片顶部的最大,叶片边缘的最小。讨论了试验结果对气孔生理研究的意义。杨建昌 王志琴 朱庆森 Weyers J D B Peng Zhiyong 1996江苏农学院学报1996,17,3:5
5Preferential CTL targeting of Gag is associated with relative viral control in long-term surviving HIV-1 infected former plasma donors from China显示文摘它通常被相信细胞毒素的 T 淋巴细胞(CTL ) 玩的那 CD8 + 在限制人的免疫不全病毒类型 1 的复制(HIV-1 ) 并且在决定感染的结果,和这效果可以部分优先地取决于产品是哪个 HIV 的一个关键角色指向了。在以前的血浆施主(FPD ) 的一个队探讨在 HIV-1-specific CTL 回答和病毒复制之间的关联,天真的 FPD 与 HIV-1 clade B' 紧张感染了的 143 antiretroviral 治疗与 IFN-γ 为 HIV-1-specific CTL 回答被估计;在由使用盖住整个一致 clade B proteome 的重叠的肽(OLP ) 的单个肽水平的 Elispot 试金。由使用一个枪兵的等级关联分析,当是断然相关到 CD4 计数时,我们发现在全部的病毒特定的 CTL 活动之中的作呕特定的 CTL 回答的比例相反地与病毒的负担被相关,与与增加的病毒的负担被联系并且减少的Pol特定、Env特定的回答对比, CD4 数。另外, Vpr-specifc CTL 回答显示出类似的保护的效果与作呕回答,但是与识别的低得多的频率。显著地,我们也观察了在 HLA 之间的一个协会 --*30/B*13/Cw*06 haplotype 和可能由于的更低的病毒的负担限制了作呕特定的 CTL 回答。因此,我们的数据在疾病控制表明作呕特定的 CTL 回答的突出的角色。HLA 的优点 -- 在病毒的控制的 *30/B*13/Cw*06 haplotype 可以在学习个人与作呕特定的 CTL 回答的贡献被联系。Mingming Jia Kunxue Hong Jianping Chen Yuhua Ruan Zhe Wang Bing Su Guoliang Ren Xiaoqing Zhang Zhen Liu Quanbi Zhao Dan Li Hong Peng Marcus Altfeld Bruce D Walker Xu G Yu Yiming Shao 2012Cell Research2012,22,5:3
6Synthesis, Crystal Structure and Calculated β Value of a Tetrahedral Zinc (II) Complex——Zn(2-NH_2py)_2Br_2显示文摘A new zinc(II) complex, Zn(2-NH2py)2Br2 (py=pyridine), has been synthesized, and its molecular structure has been confirmed by IR, elemental analysis and -ray crystal structure analysis. Its space group is P21/n with Mr=413.43 (C10H12Br2N4Zn), a=7.435(2), b=12.865(3), c=14.186(4)? b=94.08(2)? V=1353.5(5) 3, Z=4, Dc=2.029 g/cm3, F(000)=328, ?2.378mm-1, R=0.0283, wR=0.0501. The total observed reflections with I≥2?I) were 5314, of which the independent reflections were 3106. The complex structure contains a distorted tetrahedron formed by four atoms coordinated to zinc atom, namely two bromide atoms and two nitrogen atoms. The two ZnBr bond lengths within one molecule, 2.3763(6) and 2.4002(5)? respectively, are not equal; and so are the two ZnN bond lengths, which are 2.031(2) and 2.044(2)?respectively. The calculation results using PM3 method through MOPAC software package in Chem 3D show that its first molecular hyperpolarizability b value is 5.210-30esu, which is comparable with that of p-nitroaniline. No bulk SHG effect has been detected due to the centrosymmetric space group.REN Peng a SU Nan-Bing a QIN Jin-Gui a Michael W. Day b CHEN Chuang-Tianc ( aDepartment of Chemistry, Wuhan University, Wuhan 43007, China) ( bBeckman Institute, California Institute of Technology, Pasadena, CA91125, USAQ ) ( cBeijing R & D Center 2002Chinese Journal of Structural Chemistry2002,21,1:3
7Mesencephalic astrocyte-derived neurotrophic factor ameliorates steatosis in HepG2 cells by regulating hepatic lipid metabolism显示文摘BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is a global metabolism-associated liver disease.Mesencephalic astrocyte-derived neurotrophic factor (MANF) is a newly discovered secreted protein that is involved in metabolic homeostasis.However,much remains to be discovered about its function in hepatic lipid metabolism;thus,we assessed whether MANF could regulate hepatic metabolism.AIM To establish in vivo and in vitro NAFLD models to explore the role of MANF in hepatic lipid metabolism.METHODS HepG2 cells treated with free fatty acids (FFAs) and ob/ob mice were used as NAFLD models.Liver tissues collected from wild type and ob/ob mice were used to detect MANF expression.Cells were treated with FFAs for different durations.Moreover,we used lentiviral constructs to establish overexpression and knockdown cell models in order to interfere with MANF expression levels and observe whether MANF influences hepatic steatosis.Western blot analysis and quantitative real-time PCR were used to detect protein and gene expression,and oil red O staining was used to visualize intracellular lipid droplets.RESULTS Hepatic MANF protein and mRNA expression in wild type mice were 10-fold and 2-fold higher,respectively,than those in ob/ob mice.The MANF protein was temporarily increased by 1.3-fold after stimulation with FFAs for 24 h and gradually decreased to 0.66-fold that of the control at the 72 h time point in HepG2 cells.MANF deficiency upregulated the expression of genes involved infatty acid synthesis,cholesterol synthesis,and fatty acid uptake and aggravated HepG2 cell steatosis,while MANF overexpression inhibited fatty acid synthesis and uptake and cholesterol synthesis,and rescued HepG2 cells from FFAsinduced steatosis.Furthermore,a significant decrease in triglyceride levels was observed in the MANF overexpression group compared with the control group(0.4288±0.0081 mmol/g vs 0.3746±0.0121 mmol/g,P <0.05) upon FF As treatment.There was also a 17%decrease in intracellular total cholesterol levels between the MANF overexpression group and the control group (0.1301±0.0059mmol/g vs 0.1088±0.0009 mmol/g,P <0.05) upon FF As treatment.Moreover,MANF suppressed lipid deposition in HepG2 cells.CONCLUSION Our findings indicate that MANF improves the phenotype of liver cell steatosis and may be a potential therapeutic target in hepatic steatosis processes.Miao He Cong Wang Xiao-Hong Long Jia-Jia Peng Dong-Fang Liu Gang-Yi Yang Michael D Jensen Li-Li Zhang 2020World Journal of Gastroenterology2020,26,10:3
8Dextran sulfate sodium-induced acute colitis impairs dermal lymphatic function in mice显示文摘AIM: To investigate whether dermal lymphatic function and architecture are systemically altered in dextran sulfate sodium(DSS)-induced acute colitis.METHODS: Balb/c mice were administered 4% DSS in lieu of drinking water ad libitum for 7 d and monitored to assess disease activity including body weight, diarrhea severity, and fecal bleeding. Control mice received standard drinking water with no DSS. Changes in mesenteric lymphatics were assessed following oral administration of a fluorescently-labelled fatty acid analogue, while dermal lymphatic function and architecture was longitudinally characterized using dynamic near-infrared fluorescence(NIRF) imaging following intradermal injection of indocyanine green(ICG) at the base of the tail or to the dorsal aspect of the left paw prior to, 4, and 7 d after DSSadministration. We also measured dye clearance rate after injection of Alexa680-bovine serum albumin(BSA). NIRF imaging data was analyzed to reveal lymphatic contractile activity after selecting fixed regions of interest(ROIs) of the same size in fluorescent lymphatic vessels on fluorescence images. The averaged fluorescence intensity within the ROI of each fluorescence image was plotted as a function of imaging time and the lymphatic contraction frequency was computed by assessing the number of fluorescent pulses arriving at a ROI. RESULTS: Mice treated with DSS developed acute inflammation with clinical symptoms of loss of body weight, loose feces/watery diarrhea, and fecal blood, all of which were aggravated as disease progressed to 7 d. Histological examination of colons of DSS-treated mice confirmed acute inflammation, characterized by segmental to complete loss of colonic mucosa with an associated chronic inflammatory cell infiltrate that extended into the deeper layers of the wall of the colon, compared to control mice. In situ intravital imaging revealed that mice with acute colitis showed significantly fewer fluorescent mesenteric lymphatic vessels, indicating impaired uptake of a lipid tracer within mesenteric lymphatics. Our in vivo NIRF imaging data demonstrated dilated dermal lymphatic vessels, which were confirmed by immunohistochemical staining of lymphatic vessels, and significantly reduced lymphatic contractile function in the skin of mice with DSS-induced acute colitis. Quantification of the fluorescent intensity remaining in the depot as a function of time showed that there was significantly higher Alexa680-BSA fluorescence in mice with DSSinduced acute colitis compared to pre-treatment with DSS, indicative of impaired lymphatic drainage.CONCLUSION: The lymphatics are locally and systemically altered in acute colitis, and functional NIRF imaging is useful for noninvasively monitoring systemic lymphatic changes during inflammation.Germaine D Agollah Grace Wu Ho-Lan Peng Sunkuk Kwon 2015World Journal of Gastroenterology2015,21,45:2
9查看详情显示文摘Peng X G Guan S Q Chai X D 0,,:2
10基于并行处理和AC-DC修正的可调光滤波器解调技术研究显示文摘为了提高基于压电陶瓷(PZT)驱动的可调谐法布里-珀罗(F-P)型滤波器解调的光纤布拉格光栅(FBG)传感系统的实时数据采集速度和测量精度,提出并行处理技术和交流转直流(ACDC)修正方法。通过并行处理技术,可调谐F-P滤波器连续采样,PZT磁滞性得到抑制,提高了系统实时数据采集速率和测量精度。针对AC驱动电压与F-P滤波器腔长之间的非线性关系,提出AC-DC修正方法,将AC电压下的FBG波长中心位置拟合为DC电压下的中心位置,减小了FBG中心波长的测量误差。实验表明,系统实时数据采集速率最大可提高1倍,应变测量的随机误差降低95%,动态应变传感的灵敏度优于1με,实测应变量与理论计算结果之间的误差小于4%。盛文娟 LIU Yang PENG G D 2014光电子.激光2014,25,3:2
11Hybrid dual-channel phototransistor based on ID t-Se and 2D ReS2 mixed-dimensional heterostructures显示文摘The com bination of mixed-dimensional semiconducti ng materials can provide additional freedom to construct integrated n anoscale electronic and optoelectronic devices with diverse functionalities. In this work, we report a high-performanee dual-channel phototransistor based on one-dimensional (1D)/two-dimensional (2D) trigonal selenium (t-Se)/ReS2 heterostructures grown by chemical vapor deposition. The injection and separati on efficie ncy of photoge nerated electro n-hole pairs can be greatly improved due to the high-quality in terfacial con tact betwee n t-Se nano belts and ReS2 films. Compared with bare ReS2 film devices, the dual-cha nnel phototra nsistor based on t-Se/ReS2 heterostructure exhibits considerable enhancement with the responsivity (R) and detectivity (D^*) up to 98 A·W^-1 and 6 x 10^10 Jones at 400 nm illumination with an in tensity of 1.7 mW·cm^-2, respectively. Besides, the respo nse time can also be reduced by three times of magnitude to less than 50 ms due to the type-11 band alignment at the in terface. This study opens up a promising ave nue for high-performa nee photodetectors by constructing mixed-dimensional heterostructures.Jingkai Qin Hang Yan Gang Qiu Mengwei Si Peng Miao Yuqin Duan Wenzhu Shao Liang Zhen Chengyan Xu Peide D Ye 2019Nano Research2019,12,3:2
12Integrated dynamic wet spinning of core-sheath hydrogel fibers for optical-to-brain/tissue communications显示文摘Hydrogel optical light-guides have received substantial interest for applications such as deep-tissue biosensors,optogenetic stimulation and photomedicine due to their biocompatibility,(micro)structure control and tissue-like Young’s modulus.However,despite recent developments,large-scale fabrication with a continuous synthetic methodology,which could produce core-sheath hydrogel fibers with the desired optical and mechanical properties suitable for deep-tissue applications,has yet to be achieved.In this study,we report a versatile concept of integrated light-triggered dynamic wet spinning capable of continuously producing core-sheath hydrogel optical fibers with tunable fiber diameters,and mechanical and optical propagation properties.Furthermore,this concept also exhibited versatility for various kinds of core-sheath functional fibers.The wet spinning synthetic procedure and fabrication process were optimized with the rational design of the core/sheath material interface compatibility[core=poly(ethylene glycol diacrylate-co-acrylamide);sheath=Ca-alginate],optical transparency,refractive index and spinning solution viscosity.The resulting hydrogel optical fibers exhibited desirable low optical attenuation(0.18±0.01 d B cm^(-1) with 650 nm laser light),excellent biocompatibility and tissue-like Young’s modulus(<2.60 MPa).The optical waveguide hydrogel fibers were successfully employed for deep-tissue cancer therapy and brain optogenetic stimulation,confirming that they could serve as an efficient versatile tool for diverse deep-tissue therapy and brain optogenetic applications.Guoyin Chen Gang Wang Xinrong Tan Kai Hou Qingshuo Meng Peng Zhao Shun Wang Jiayi Zhang Zhan Zhou Tao Chen Yanhua Cheng D Benjamin S.Hsiao Elsa Reichmanis Meifang Zhu 2021National Science Review2021,8,9:2
13Characterization of spermidine hydroxycinnamoyl transferases from eggplant (Solanum melongena L.) and its wild relative Solanum richardii Dunal显示文摘Eggplant produces a variety of hydroxycinnamic acid amides(HCAAs)that have an important role in plant development and adaptation to environmental changes.In this study,we identified and characterized a spermidine hydroxycinnamoyl transferase(SHT)from eggplant(Solanum melongena)and its wild relative S.richardii,designated as SmSHT and SrSHT,respectively.SmSHT was abundant in flowers and fruits,whereas the level of SrSHT was remarkably low in all tissues.Heat-shock/drought treatment stimulated the expression of SmSHT in both leaves and fruits,indicating its involvement in plant stress response.Both SHT polypeptides had extremely high identity with just five amino-acid substitutions.Recombinant SmSHT catalyzed the synthesis of mono-,bi-and tri-acylated polyamines.Using caffeoyl-CoA as the acyl donor,SmSHT preferred spermidine as the acyl acceptor.When spermidine was the acyl acceptor,the donor preference order for SmSHT was caffeoyl-CoA>feruloyl-CoA>ρ-coumaroyl-CoA.SrSHT exhibited the same substrate specificity as SmSHT,yet exhibited significantly higher catalytic activity than SmSHT.For example,under caffeoyl-CoA and spermidine,Kcat of SrSHT was 37.3%higher than SmSHT.Molecular modeling suggests that five amino-acid substitutions in SrSHT result in four alterations in their predicted 3D structures.In particular,the conserved Lys402 adjacent to the DFGWG motif,and Cys200 in the crossover loop in SmSHT were replaced by Glu and Ser in SrSHT.These substitutions may contribute to the enhanced activity in SrSHT.Our study provides a platform to generate HCAA rich fruits for eggplant and other solanaceous crops.Hui Peng Tianbao Yang Bruce D Whitaker Frances Trouth Lingfei Shangguan Wen Dong Wayne M Jurick 2016Horticulture Research2016,3,1:2
14Nitrification at low oxygen concentration in biofilm reactor 显示文摘Bernet N Peng D C Delgenes J P 2001J Environ Eng ASCE2001,127,3:1
15Nitrification at low oxygen concentration in biofilm reactor显示文摘Bernet N Peng D C Delgenes J P 2001J Environ Eng2001,127,3:1
16The physicochemie, al and functional properties of soybean 11S globulin-a review 显示文摘Peng I C Quass D W Dayton W R 1984Cereal Chemistry1984,61,6:1
17Preparation and photocatalytic activity of dysprosium doped tungsten trioxide nanoparticles 显示文摘Liu H J Peng T Y Ke D N 2007Materials Chemistry and Physics2007,104,23:1
18Integrated Computer Program for Simulation of Meshing and Contact of Gear Drives 显示文摘LITVIN F L DONNO M D PENG A 2000Computer Methods in Applied Mechanics and Engineering2000,181,13:1
19UV-B effects on crops: response of the irrigated rice ecosystem显示文摘OLSZYK D DAI QUEJIE PENG SHAOBAI 1996Journal of plant physiology1996,148,1:1
20Rational syntheses, characterization, crystal structure, and replacement reactions of coordinated water molecules of ^10- (M =Cd, Co, Cu, Fe, Mn, Ni or Zn) 显示文摘Bi L H Huang R D Peng J 2001J Chem Soc Dalton Trans2001,,:1
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