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| 1 | 糖尿病视网膜病变患病率的流行病学调查:在中国6省13473名糖尿病患者中的横断面研究显示文摘目的本研究旨在探究中国糖尿病患者中糖尿病视网膜病变(DR)和视力威胁性糖尿病视网膜病变(STDR)的患病率和严重程度。研究设计、设置与参与者本研究为横断面流行病学调查,研究对象为中国内地地区的糖尿病患者(N=13473)。研究对象为被内科医师诊断为糖尿病,并转诊到筛查门诊的糖尿病患者(其中住院患者占1/3,城市居民占1/3,农村居民占1/3)。研究对象的每只眼睛应用彩色、免散瞳和非立体眼底照相机拍摄2张眼底照片,并根据英国DR分级指南进行分级。主要结果和测量指标DR与STDR的患病率和严重程度。结果在参与本研究的13473例糖尿病患者中,共发现4591例DR和1769例STDR患者,DR的总体患病率为34.08%[95%可信区间(凹)33.28%~34.88%],其中STDR的总体患病率为13.13%(95%C112.56%~13.70%)。在所有研究对象中,12780例参与了眼底照片分级(94.86%)。年龄大于65岁的研究对象患DR或STDR的可能性较低(P〈0.001)。性别对是否患病没有显著影响(P〉0.05)。STDR患者与非STDR患者相比,视力损伤更为严重(P〈0.001)。中国北方DR和STDR的患病率高于南方(P〈0.001)。DR的患病率与糖尿病患病时间f比值比(鲫)2.63;95%C12.42~2.86;P〈0.001]以及糖尿病发病年龄(OR 0.38;95%CI为0.35~0.41;P〈0.001)密切相关。结论DR和STDR在中国内地地区的患病率偏高,并且不同地区患病率存在差异。在DR中,非增殖性DR更常见,但STDR更需要及时的诊断和治疗,特别是在经济欠发达地区。本研究强调了中国内地地区DR筛查和治疗的重要性。 | Liu, Yan Song, Yifan Tao, Liyuan Qiu, Weiqiang Lv, Huibin Jiang, Xiaodan Zhang, Mingzhou Li, Xuemin | 2017 | 英国医学杂志中文版2017,20,11: | 23 |
| 2 | Triage for management of cervical high-grade squamous intraepithelial lesion patients with positive margin by conization: a retrospective analysis显示文摘这研究的目的是为颈的高级有鳞的 intraepithelial 的管理指导 triage 有由 conization 的积极边缘的损害(HSIL ) 病人。有由 conization 的积极边缘的 HSIL 病人的 Clinico 病理学的数据回顾地从 2009 年 1 月被收集到 2014 年 12 月。所有病人在 6 个月以内经历了第二等的 conization 或子宫切除。剩余损害的率被计算,并且与剩余损害联系的因素被 univariate 和 multivariate 分析分析。在 119 个病人的一个总数之中, 56 (47.06%) 病人们在他们的随后的外科的标本介绍了剩余 HSIL,包括侵略的颈的癌(3 阶段 IA1 和 1 个阶段 IA2 病人) 的 4 个盒子。Univariate 分析显示出那耐心的年龄 > 35 年(P=0.005 ) , menopausal 时期 > 5 年(P=0.0035 ) ,和多重象限的参与(P=0.001 ) 显著地与剩余疾病被相关;然而, multivariate 分析揭示了那多重象限的参与(P=0.001;或, 3.701;95%CI, 1.4969.154 ) 是为剩余疾病的一个独立风险因素。将近有由 conization 的积极边缘的 HSIL 病人的一半与多重积极边缘在随后的外科的标本,和那些是没有疾病的可以考虑 re-conization 或重新评价。 | Yuya Dou Xiaodan Zhang Yang Li Fenfen Wang Xing Xie Xinyu Wang | 2017 | Frontiers of Medicine2017,11,2: | 12 |
| 3 | A NAC transcription factor, NOR-like1, is a new positive regulator of tomato fruit ripening显示文摘Ripening of the model fruit tomato(Solanum lycopersicum)is controlled by a transcription factor network including NAC(NAM,ATAF1/2,and CUC2)domain proteins such as No-ripening(NOR),SlNAC1,and SlNAC4,but very little is known about the NAC targets or how they regulate ripening.Here,we conducted a systematic search of fruit-expressed NAC genes and showed that silencing NOR-like1(Solyc07g063420)using virus-induced gene silencing(VIGS)inhibited specific aspects of ripening.Ripening initiation was delayed by 14 days when NOR-like1 function was inactivated by CRISPR/Cas9 and fruits showed obviously reduced ethylene production,retarded softening and chlorophyll loss,and reduced lycopene accumulation.RNA-sequencing profiling and gene promoter analysis suggested that genes involved in ethylene biosynthesis(SlACS2,SlACS4),color formation(SlGgpps2,SlSGR1),and cell wall metabolism(SlPG2a,SlPL,SlCEL2,and SlEXP1)are direct targets of NOR-like1.Electrophoretic mobility shift assays(EMSA),chromatin immunoprecipitation-quantitative PCR(ChIP-qPCR),and dual-luciferase reporter assay(DLR)confirmed that NOR-like1 bound to the promoters of these genes both in vitro and in vivo,and activated their expression.Our findings demonstrate that NOR-like1 is a new positive regulator of tomato fruit ripening,with an important role in the transcriptional regulatory network. | Ying Gao Wei Wei Xiaodan Zhao Xiaoli Tan Zhongqi Fan Yiping Zhang Yuan Jing Lanhuan Meng Benzhong Zhu Hongliang Zhu Jianye Chen Cai-Zhong Jiang Donald Grierson Yunbo Luo Da-Qi Fu | 2018 | Horticulture Research2018,5,1: | 9 |
| 4 | Theory for Constructing Generalized Synchronization and Applications显示文摘The approaches for constructing directionally coupled generalized synchronization (GS) systems are presented, which are available for the driving system and the respond system that are in GS via a given diffeomorphism transformation. Examples are proposed for illustrating the methods. | Xiaodan Zhang, Lequan Min (Applied Science School, University of Science and Technology Beijing, Beijing 100083, China) | 2000 | International Journal of Minerals,Metallurgy and Materials2000,14,3: | 9 |
| 5 | Effects of Plant Growth-Promoting Rhizobacteria and N Source on Plant Growth and N and P Uptake by Tomato Grown on Calcareous Soils显示文摘Introducing specific microorganisms into the soil ecological system is an important strategy for improving nutrient use efficiency.Two pot experiments were conducted in the greenhouse from December 3, 2012 to January 25, 2013(Experiment 1) and March 11 to April 23, 2013(Experiment 2) to evaluate the effect of nitrogen(N) source and inoculation with plant growth-promoting rhizobacteria(PGPR) on plant growth and N and phosphorus(P) uptake in tomato(Lycopersicon esculentum Mill.) grown on calcareous soils from South Florida, USA.Treatments included urea, controlled release urea(a controlled release fertilizer, CRF) each at low and high N rates and with or without inoculation of PGPR.A mixture of PGPR strains Bacillus amyloliquefaciens IN937 a and Bacillus pumilus T4 was applied to the soil during growing periods of tomato.Treatments with PGPR inoculation increased plant height compared to treatments without PGPR in both experiments.Inoculation with PGPR increased shoot dry weight and shoot N uptake for the same N rate and N source.In both experiments, only at high N rate, CRF and urea treatments with PGPR had significantly(P < 0.05)greater shoot biomass than those without PGPR.Only at high N rate, CRF treatment with PGPR significantly increased shoot N uptake by 39.0% and 10.3% compared to that without PGPR in Experiments 1 and 2, respectively.Meanwhile, presence of PGPR in the soil increased shoot P uptake for all treatments in Experiment 1 and for most treatments in Experiment 2.In Experiment 1, only at low N rate, CRF treatment with PGPR significantly increased shoot P uptake compared with that without PGPR.In Experiment2, a significant increase in shoot P uptake by inoculation of PGPR was only observed in CRF treatment at high N rate.Results from this study indicate that inoculation with PGPR may increase plant growth and N and P uptake by tomato grown on calcareous soils.However, the effect of PGPR varied and was influenced by many factors such as N source, N rate, and soil fertility.Further investigations are warranted to confirm the effect of PGPR under different soil conditions. | Xiaohui FAN Shouan ZHANG Xiaodan MO Yuncong LI Yuqing FU Zhiguang LIU | 2017 | Pedosphere2017,27,6: | 8 |
| 6 | Oncogenic miR-19a and miR-19b co-regulate tumor suppressor MTUS1 to promote cell proliferation and migration in lung cancer显示文摘MTUS1 (联系微导管的肿瘤 suppressor 1 ) 被识别了那能在许多恶意的肿瘤作为肿瘤 suppressor 基因工作。然而,位于 MTUS1 的规定下面的功能和机制是不清楚的。在现在的学习,我们报导 miR-19a 和 miR-19b (miR-19a/b ) 由指向 MTUS1 支持肺癌症房间的增长和移植。首先, MTUS1 被证明在肺癌症作为肿瘤 suppressor 工作并且被连接到房间增长和移植提升。第二,在 miR-19a/b 表示之间的反的关联和 MTUS1 mRNA/protein 表示在人的肺癌症纸巾被注意。第三, MTUS1 被生物信息学分析作为 miR-19a/b 的一个直接目标估价。第四,由在肺癌症房间的 miR-19a/b 的直接 MTUS1 规定被房间 transfection 试验性地肯定试金和酶记者试金。最后, miR-19a/b 被显示合作地镇压 MTUS1 表示并且 synergistically 调整 MTUS1 表示支持肺癌症房间增长和移植。在结论,我们的调查结果关于 miR-19a/b 的角色提供了第一线索,它看起来由 downregulating MTUS1 在肺癌症作为 oncomirs 工作。 | Yuanyuan Gu Shuoxin Liu Xiaodan Zhang Guimin Chen Hongwei Liang Mengchao Yu Zhicong Liao Yong Zhou Chen-Yu Zhang Tao Wang Chen Wang Junfeng Zhang Xi Chen | 2017 | Protein & Cell2017,8,6: | 6 |
| 7 | Hydrochlorination of Acetylene Using SiC Foam Supported Structured C/Au Catalysts显示文摘AUCI_3 loaded structured catalysts were prepared on SiC foam supported with pre-coated activated carbon layers.The catalytic properties of the structured catalysts towards hydrochlorination of acetylene were tested in a fixedbed reactor with the AuCI_3 loaded on activated carbon pellets as a reference.For isopyknic catalysts,the structured catalyst with only one fifth of the Au amount as that was used on the reference catalyst exhibited even a little higher acetylene conversion and much better stability than the latter no matter what the gas hourly space velocities of acetylene were used.The results indicated that the more homogeneous distribution of AUCI_3 particles and better heat transfer along the fixed-bed reactor originated from the low pressure drop and high thermal conductivity of the SiC foam supported structured catalysts might be able to account for their improved efficiency and stability.It is believed that these novel structured C/Au catalysts can be potentially applied in VCM industrialization in view of their greatly reduced cost and much prolonged life. | Xiaodan Yang Chunhai Jiang Zhenming Yang Jinsong Zhang | 2014 | Journal of Materials Science & Technology2014,30,5: | 6 |
| 8 | Apelin-13 inhibits lipoprotein lipase expression via the APJ/PKCα/miR-361-5p signaling pathway in THP-1 macrophage-derived foam cells显示文摘动脉粥样硬化患者损害被丰富的类脂化合物和长期的发炎的累积描绘。以前的研究显示了导出巨噬细胞的脂蛋白脂肪分解酵素(LPL ) 由加速类脂化合物累积和支持 inflammatory cytokine 分泌物支持动脉粥样硬化前进。尽管 apelin-13 被认为是一个 atheroprotective 因素,它是否能调整 LPL 的表示,仍然保持不清楚。这研究的目的是在 THP-1 导出巨噬细胞的泡沫房间在 LPL 和内在的机制的表示上探索 apelin-13 的效果。Apelin-13 显著地减少了在 10 和 100 nM 的集中的全部的胆固醇,免费胆固醇,和胆固醇酉旨的细胞的层次。ELISA 分析证实有 apelin-13 的处理减少了支持 inflammatory cytokine 分泌物,例如 interleukin-6 (IL-6 ) , interleukin-1 (IL-1 ) 和肿瘤坏死 factor-alpha (TNF-) 。apelin-13 禁止了由西方的污点和即时 PCR 分析揭示了的 LPL 的表示,这也被发现。生物信息学分析和双酶的记者试金直接显示了那 miR-361-5p downregulated 由指向 LPL 的 3UTR 的 LPL 的表示。另外, apelin-13 + miR-361-5p 显著地模仿 downregulated 在房间的 LPL 的表示。最后,我们表明了那 apelin-13 downregulated 通过激活 PKC 的活动的 LPL 的表示。一起拿,我们的结果显示出那 apelin-13 downregulated 经由激活在 THP-1 导出巨噬细胞的泡沫房间表明小径的 APJ/PKC/miR-361-5p 的 LPL 的表示,导致类脂化合物累积和支持 inflammatory cytokine 分泌物的抑制。因此,我们的研究由 apelin-13 提供重要新卓见进类脂化合物累积和支持 inflammatory cytokine 分泌物的抑制,并且在动脉粥样硬化作为一个有希望的治疗学的目标加亮 apelin-13。 | Xin Zhang Qiong Ye Duo Gong Yuan Lv Haipeng Cheng Chong Huang Lingyan Chen Zhenwang Zhao Liang Li Xie Wei Min Zhang Xiaodan Xia Xiaohua Yu Xilong Zheng Shuzhi Wang Zongbao Wang Chaoke Tang | 2017 | Acta Biochimica et Biophysica Sinica2017,49,6: | 6 |
| 9 | Decrement of Sugar Consumption in Rice Young Panicle Under High Temperature Aggravates Spikelet Number Reduction显示文摘Two rice genotypes Huanghuazhan(HHZ, heat-resistant) and IR36(heat-susceptible) were subjected to high-temperature(HT, 40℃) and normal-temperature(NT, 32℃) treatments at the spikelet differentiation stage. HT treatment inhibited spikelet differentiation, aggravated spikelet degeneration, reduced spikelet size, and disordered carbohydrate allocation. Meanwhile, HT treatment increased nonstructural carbohydrate content in leaves, but decreased that in stems and young panicles, and the same tendencies of sucrose and starch contents were observed in leaves and stem. However, HT treatment significantly increased the sucrose content and sharply decreased the glucose and fructose contents in young panicles. Lower activity levels of soluble acid invertase(EC3.2.1.26) and sucrose synthase(EC2.4.1.13) were observed under HT treatment. Moreover, HT treatment reduced the activities of key enzymes associated with glycolysis and the tricarboxylic acid cycle, which indicated sucrose consumption was inhibited in young panicles under HT treatment. Exogenous glucose and fructose applied under HT treatment increased the spikelet number more than exogenous sucrose. In conclusion, the results demonstrated that the reduction of spikelet number under high temperature was more affected by the decrease in sugar consumption than the blocking of sucrose transport. The impairment of sucrose hydrolysis was the main reason for the inhibition of sugar utilization. | WANG Yaliang ZHANG Yikai SHI Qinghua CHEN Huizhe XIANG Jing HU Guohui CHEN Yanhua WANG Xiaodan WANG Junke YI Zihao ZHU Defeng ZHANG Yuping | 2020 | Rice science2020,27,1: | 6 |
| 10 | Encapsulation of selenium sulfide in double-layered hollow carbon spheres as advanced electrode material for lithium storage显示文摘硒 sulfide/double-layered 空碳范围(SeS 2/DLHC) composites 为新奇 Li-SeS 2 电池作为高效的阴极材料被设计了。在里面构造合成, SeS 2 主要在 DLHC 的夹层空间被包含,高度(重量百分比)75% 装载并且为锂用作活跃部件存储。Se 在的存在合成并且碳框架不仅减轻 polysulfide 的 shuttling,而且改进电极的传导性。到在骑车以后的 DLHC 的空洞的从夹层虚空的活跃材料的移植,进一步减轻活跃材料和梭效果的损失,被观察。作为结果, SeS 2/DLHC 合成交付一个高特定的能力(930 mAed nanoparticles,有 81.8% 的轻发射度和 118.62ichia coli 的一个水接触角度(E。coli ) ,肠球菌(ENT ) 和全部的大肠菌(TC ) 被分析。除了 EC 和没有 3, ,结果揭示了低 concentrati 吗?? | Hongwei Zhang Liang Zhou Xiaodan Huang Hao Song Chengzhong Yu | 2016 | Nano Research2016,9,12: | 5 |
| 11 | Seasonal Variations of Several Main Water Masses in the Southern Yellow Sea and East China Sea in 2011显示文摘The seasonal variations of several main water masses in the southern Yellow Sea (SYS) and East China Sea (ECS) in 2011 were analyzed using the in-situ data collected on four cruises.There was something special in the observations for the Yellow Sea Warm Current (YSWC) ,the Yellow Sea Cold Water Mass (YSCWM) and the Changjiang Diluted Water (CDW) during that year.The YSWC was confirmed to be a seasonal current and its source was closely associated with the Kuroshio onshore intrusion and the northerly wind.It was also found that the YSCWM in the summer of 2011 occupied a more extensive area in comparison with the climatologically-mean case due to the abnormally powerful wind prevailing in the winter of 2010 and decaying gradually thereafter.Resulting from the reduced Changjiang River discharge,the CDW spreading toward the Cheju Island in the summer of 2011 was weaker than the long-term mean and was confined to flow southward in the other seasons.The other water masses seemed normal without noticeable anomalies in 2011.The Yellow Sea Coastal Current (YSCC) water,driven by the northerly wind,flowed southeastward as a whole except for its northeastward surface layer in summer.The Taiwan Warm Current (TWC) was the strongest in summer and the weakest in winter in its northward movement.The Kuroshio water with an enhanced onshore intrusion in autumn was stable in hydrographic features apart from the seasonal variation of its surface layer. | QUAN Qi MAO Xinyan YANG Xiaodan HU Yingying ZHANG Haiyan JIANG Wensheng | 2013 | Journal of Ocean University of China2013,12,4: | 5 |
| 12 | Periodically poled lithium niobate whispering gallery mode microcavities on a chip显示文摘In this study, we investigate the fabrication of periodically poled lithium niobate(PPLN) microdisk cavities on a chip. These resonators are fabricated from a PPLN film with a 16 μm poling period on insulator using conventional microfabrication techniques.The quality factor of the PPLN microdisk resonators with a 40-μm radius and a 700-nm thickness is 6.7×10~5. Second harmonic generation(SHG) with an efficiency of 2.2×10^(-6) mW(-1) is demonstrated in the fabricated PPLN microdisks. The nonlinear conversion efficiency could be considerably enhanced by optimizing the period and pattern of the poled structure and by improving the cavity quality factors. | ZhenZhong Hao Li Zhang Ang Gao WenBo Mao XiaoDan Lyu XiaoMei Gao Fang Bo Feng Gao GuoQuan Zhang JingJun Xu | 2018 | Science China(Physics,Mechanics & Astronomy)2018,61,11: | 5 |
| 13 | Sodium Citrate: A Universal Reducing Agent for Reduction/ Decoration of Graphene Oxide with Au Nanoparticles显示文摘一个灵巧的方法为减少的 graphene 氧化物 nanosheets (RGONS ) 的合成被建议,使用 graphene 氧化物并且 Au 减少 nanoparticle 的 graphene 氧化物 nanosheet (Au-RGONS ) 混血儿材料(去) 作为先锋和钠柠檬酸盐作为 reductant 和 stabilizer。产生 RGONS 和 Au-RGONS 混血儿材料被紫外力的光谱学描绘, X 光检查光电子光谱学, Fourier 变换红外线的光谱学,拉曼光谱学,原子力量显微镜学,传播电子显微镜学,和 X 光检查衍射。RGONS 和 Au-RGONS 混血儿材料通过在剩余之间的氢契约形成了稳定的胶体的分散,这被发现 RGONS 的表面和钠柠檬酸盐的 hydroxyl/carboxyl 组上的包含氧的功能。到三种 biomolecules 的 RGONS 和 Au-RGONS 混合的修改材料的玻璃质的碳电极(GCE ) 的电气化学的回答被调查,并且所有相对赤裸的 GCE 在电气化学的性能他们显示出显著增加。 | Zhe Zhang Huihui Chen Chunyan Xing Mingyi Guo Fugang Xu Xiaodan Wang Hermann J. Gruber Bailin Zhang Jilin Tang | 2011 | Nano Research2011,4,6: | 5 |
| 14 | Development and characterization of a clinical strain of Coxsackievirus A16 and an eGFP infectious clone显示文摘Coxsackievirus A16(CA16) is one of the major causes of hand, foot, and mouth disease(HFMD) worldwide, which is a common illness that affects children. The frequent occurrence of HFMD outbreaks has become a serious public health problem in Asia. Therefore, it is important to understand the pathogenesis and replication of CA16. In this study, a stable infectious c DNA clone of an epidemic strain of Coxsackievirus A16(CA16) was assembled, and subsequently a reporter virus(e GFP-CA16) was constructed by inserting the e GFP gene between the 5'-UTR and the N-terminus of VP4, with the addition of a 2A protease cleavage site(ITTLG) at its C-terminus. This was transfected into Vero cells to generate infectious recombinant viruses. The growth characteristics and plaque morphology, in vitro, in mammalian cells were found to be indistinguishable between the parental and recombinant viruses. Although the e GFP-CA16 showed smaller plaque size as compared to recombinant CA16, both were found to exhibit similar growth trends and EC50 of NITD008. In summary, this stable infectious c DNA clone should provide a valuable experimental system to study CA16 infection and host response. The e GFP-CA16 is expected to provide a powerful tool to monitor e GFP expression in infected cells and to evaluate the antiviral activity of potential antiviral agents in the treatment of CA16 infections. | Chenglin Deng Xiaodan Li Siqing Liu Linlin Xu Hanqing Ye Cheng-Feng Qin Bo Zhang | 2015 | Virologica Sinica2015,30,4: | 5 |
| 15 | Impact of oceans on climate change in drylands显示文摘Drylands account for approximately 41% of the global total land area. Significant warming and rare precipitation in drylands result in a fragile ecology and deterioration of the living environment, making it more sensitive to global climate change. As an important regulator of the Earth's climate system, the oceans play a vital role in the process of climate change in drylands. In modern climate change in particular, the impact of marine activities on climate change in drylands cannot be neglected. This paper reviews the characteristics of climate change in drylands over the past 100 years, and summarizes the researches conducted on the impact of marine activities on these changes. The review focuses on the impact of the Pacific Decadal Oscillation(PDO), Atlantic Multidecadal Oscillation(AMO), El Ni?o and La Ni?a on climate change in drylands, and introduces the mechanisms by which different oceanic oscillation factors synergistically affect climate change in drylands.Studies have shown that global drylands have experienced a significant intensification in warming in the past 100 years, which shows obvious characteristics of interdecadal dry/wet variations. The characteristics of these changes are closely related to the oscillatory factors of the oceanic interdecadal scale. Different phase combinations of oceanic oscillation factors significantly change the land-sea thermal contrast, which in turn affects the westerly jet, planetary wave and blocking frequency, resulting in changes in the temperature and dry/wet characteristics of drylands. With the intensification of climate change in drylands, the impact of marine activities on these regions will reveal new characteristics in the future, which will increase the uncertainty of future climate change in drylands and intensify the impact of these drylands on global climate. | Xiaodan GUAN Jieru MA Jianping HUANG Ruixin HUANG Lei ZHANG Zhuguo MA | 2019 | Science China Earth Sciences2019,62,6: | 5 |
| 16 | Phosphofructokinase-1 Negatively Regulates Neurogenesis from Neural Stem Cells显示文摘Phosphofructokinase-1(PFK-1),a major regulatory glycolytic enzyme,has been implicated in the functions of astrocytes and neurons.Here,we report that PFK-1 negatively regulates neurogenesis from neural stem cells(NSCs)by targeting pro-neural transcriptional factors.Using in vitro assays,we found that PFK-1 knockdown enhanced,and PFK-1 overexpression inhibited the neuronal differentiation of NSCs,which was consistent with the findings from NSCs subjected to 5 h of hypoxia.Meanwhile,the neurogenesis induced by PFK-1 knockdown was attributed to the increased proliferation of neural progenitors and the commitment of NSCs to the neuronal lineage.Similarly,in vivo knockdown of PFK-1 also increased neurogenesis in the dentate gyrus of the hippocampus.Finally,we demonstrated that the neurogenesis mediated by PFK-1 was likely achieved by targeting mammalian achaete-scute homologue-1(Mash 1),neuronal differentiation factor(NeuroD),and sex-determining region Y(SRY)-related HMG box 2(Sox2).All together,our results reveal PFK-1 as an important regulator of neurogenesis. | Fengyun Zhang Xiaodan Qian Cheng Qin Yuhui Lin Haiyin Wu Lei Chang Chunxia Luo Dongya Zhu | 2016 | Neuroscience Bulletin2016,32,3: | 4 |
| 17 | Design and immunogenicity assessment of HIV-1 virus-like particles as a candidate vaccine显示文摘The rapid growth of the global HIV/AIDS epidemic makes it a high priority to develop an effective vaccine.Since a live attenuated or inactivated HIV vaccine is not likely to be approved for clinical application due to safety concerns,HIV virus like particles(VLPs) offer an attractive alternative because they are considered safer since they lack viral genome.We got a stable eukaryotic cell line by G418 resistance selection,engineered to express the HIV-1 structure protein Gag and Env efficiently and stably.We confirmed the presence of Gag and Env proteins in the cell culture supernatant and that they could self-assemble into VLPs.These VLPs were found to be able to elicit specific humoral and cellular immune response after immunization without any adjuvant. | ZHANG XiZhen WANG XiaoDan ZHAO DongHai MENG XiangYu ZHAO XingHong YU XiangHui KONG Wei | 2011 | Science China(Life Sciences)2011,54,11: | 4 |
| 18 | Trans Complementation of Replication-defective Omsk Hemorrhagic Fever Virus for Antiviral Study显示文摘Omsk hemorrhagic fever virus(OHFV) is a tick-borne flavivirus classified as a biosafety level-4(BSL4) pathogen. Studies of OHFV are restricted to be conducted within BSL4 laboratories. Currently, no commercial vaccines or antiviral drugs are available against OHFV infection. In this study, we recovered a replication-deficient OHFV with an NS1 deletion(OHFVDNS1) and reporter virus replacing NS1 with the Gaussia luciferase(Gluc)(OHFV-ΔNS1-Gluc). Both the defective OHFVDNS1 and OHFV-ΔNS1-Gluc virus could only replicate efficiently in the BHK21 cell line expressing NS1(BHK21NS1) but not in na?ve BHK21 cells. The Gluc reporter gene of OHFV-ΔNS1-Gluc virus was maintained stably after serial passaging of BHK21NS1 cells and was used to surrogate the replication of OHFV. Using NITD008, OHFV-ΔNS1-Gluc virus was validated for antiviral screening, and high-throughput screening parameters were optimized in a 96-well plate format with a calculated Z0 value above 0.5. The OHFV-ΔNS1-Gluc reporter virus is a powerful tool for antiviral screening as well as viral replication and pathogenesis studies in BSL2 laboratories. | Qiuyan Zhang Na Li Chenglin Deng Zherui Zhang Xiaodan Li Kentaro Yoshii Hanqing Ye Bo Zhang | 2019 | Virologica Sinica2019,34,4: | 4 |
| 19 | Recognition of practical speech emotion using improved shuffled frog leaping algorithm显示文摘Due to the drawbacks in Support Vector Machine(SVM)parameter optimization,an Improved Shuffled Frog Leaping Algorithm(Im-SFLA)was proposed,and the learning ability in practical speech emotion recognition was improved.Firstly,we introduced Simulated Annealing(SA),Immune Vaccination(Iv),Gaussian mutation and chaotic disturbance into the basic SFLA,which bManced the search efficiency and population diversity effectively.Secondly,Im-SFLA Was applied to the optimization of SVM parameters,and an Im-SFLA-SVM method Was proposed.Thirdly,the acoustic features of practical speech emotion,such aS ridgetiness,were analyzed.The pitch frequency,short-term energy,formant frequency and chaotic characteristics were analyzed corresponding to different emotion categories,and we constructed a 144-dimensional emotion feature vector for recognition and reduced to 4-dimension by adopting Linear Discriminant Analysis(LDA) Finally,the Im-SFLA-SVM method Was tested on the practical speech emotion database,and the recognition results were compared with Shuffled Frog Leaping Algorithm optimization-SVM(SFLA-SVM)method,Particle Swarm Optimization algorithm optimization-SVM(PSo-SVM) method,basic SVM,Gaussian Mixture Model(GMM)method and Back Propagation(BP)neural network method.The experimentM resuits showed that the average recognition rate of Im-SFLA-SVM method was 77.8%,which had improved 1.7%,2.7%,3.4%,4.7%and 7.8%respectively,compared with the other methods.The recognition of fidgetiness was significantly improve,thus verifying that Im-SFLA was an effective SVM parameter selection method,and the Im-SFLA-SVM method may significantly improve the practical speech emotion recognition. | ZHANG Xiaodan HUANG Chengwei ZHAO Li ZOU Cairong | 2014 | Chinese Journal of Acoustics2014,33,4: | 4 |
| 20 | Potential-tuned selective electrosynthesis of azoxy-,azoand amino-aromatics over a CoP nanosheet cathode显示文摘Azoxy-, azo-and amino-aromatics are among the most widely used building blocks in materials science pharmaceuticals and synthetic chemistry, but their controllable and green synthesis has not yet been well established. Herein, a facile potential-tuned electrosynthesis of azoxy-, azo-and amino-aromatics via aqueous selective reduction of nitroarene feedstocks over a CoP nanosheet cathode is developed. A series of azoxy-, azo-and amino-compounds with excellent selectivity, good functional group tolerance and high yields are produced by applying different bias input. The synthetically significant and challenging asymmetric azoxy-aromatics can be controllably synthesized in moderate to good yields. The use of water as the hydrogen source makes this strategy remarkably fascinating and promising. In addition, deuterated aromatic amines with a high deuterium content can be readily obtained by using D2O. By pairing with anodic oxidation of aliphatic amines to nitriles, synthetically useful building blocks can be simultaneously produced in a CoP||Ni2 P two-electrode electrolyzer. Only 1.25 V is required to achieve a current density of 20 mA cm-2, which is much lower than that of overall water splitting(1.70 V). The paired oxidation and reduction reactions can also be driven using a 1.5 V battery to synthesize nitrile and azoxybenzene with good yields and selectivity, further emphasizing the flexibility and controllability of our method. This work paves the way for a promising approach to the green synthesis of valuable chemicals through potential-controlled electrosynthesis. | Xiaodan Chong Cuibo Liu Yi Huang Chenqi Huang Bin Zhang | 2020 | National Science Review2020,7,2: | 4 |