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| 1 | Hydroxysafflor yellow A improves learning and memory in a rat model of vascular dementia by increasing VEGF and NR1 in the hippocampus显示文摘Hydroxysafflor yellow A(HSYA) has angiogenesisregulating and neuro-protective effects, but its effects on vascular dementia(VaD) are unknown. In this study, 30 adult Sprague-Dawley rats were randomly allocated to five groups: normal, sham-operation, VaD alone(bilateral carotid artery occlusion), VaD plus saline(control), and VaD plus HSYA. One week after operation, the HSYA group received one daily tail-vein injection of 0.6 mg/100 g HSYA for two weeks. Five weeks after operation, the spatial memory of all five groups was evaluated by the water maze task, and synaptic plasticity in the hippocampus was assessed by the long-term potentiation(LTP) method. Vascular endothelial growth factor(VEGF) and N-methyl-Daspartic acid receptor 1(NR1) expression in the hippocampus was detected via Western blot. We found that, compared with the group with VaD alone, the group with HSYA had a reduced escape latency in the water maze(P <0.05), and the LTP at CA3-CA1 synapses in the hippocampus was enhanced(P <0.05). Western blot in the late-phase VaD group showed slight up-regulation of VEGF and downregulation of NR1 in the hippocampus, while HSYA significantly up-regulated both VEGF and NR1. Theseresults suggested that HSYA promotes angiogenesis and increases synaptic plasticity, thus improving spatial learning and memory in the rat model of VaD. | Nan Zhang Mengya Xing Yiyi Wang Hao Liang Zhuo Yang Fudong Shi Yan Cheng | 2014 | Neuroscience Bulletin2014,30,3: | 30 |
| 2 | Design, synthesis and biological evaluation of chalcone analogues with novel dual antioxidant mechanisms as potential anti-ischemic stroke agents显示文摘Scavenging reactive oxygen species(ROS) by antioxidants is the important therapy to cerebral ischemia-reperfusion injury(CIRI) in stroke. The antioxidant with novel dual-antioxidant mechanism of directly scavenging ROS and indirectly through antioxidant pathway activation may be a promising CIRI therapeutic strategy. In our study, a series of chalcone analogues were designed and synthesized, and multiple potential chalcone analogues with dual antioxidant mechanisms were screened. Among these compounds, the most active 33 not only conferred cytoprotection of H2 O2-induced oxidative damage in PC12 cells through scavenging free radicals directly and activating NRF2/ARE antioxidant pathway at the same time, but also played an important role against ischemia/reperfusion-related brain injury in animals. More importantly, in comparison with mono-antioxidant mechanism compounds, 33 exhibited higher cytoprotective and neuroprotective potential in vitro and in vivo. Overall, our findings showed compound 33 couldemerge as a promising anti-ischemic stroke drug candidate and provided novel dual-antioxidant mechanism strategies and concepts for oxidative stress-related diseases treatment. | Jiabing Wang Lili Huang Chanchan Cheng Ge Li Jingwen Xie Mengya Shen Qian Chen Wulan Li Wenfei He Peihong Qiu Jianzhang Wu | 2019 | Acta Pharmaceutica Sinica B2019,9,2: | 13 |
| 3 | Effect of Preparation Temperature on the Aging Properties of Waste Polyethylene Modified Asphalt显示文摘In this study, waste polyethylene(WPE) was used as a modifier for base asphalt. In our previous studies,we have examined a variety of polymer modifiers for asphalt. By contrast, little research has focused on the preparation process, such as preparation time, preparation temperature and shear rate. The effect of preparation temperature on aging properties of WPE-modified asphalt was investigated in this work. The experimental materials were characterized by infrared spectroscopy(IR), thermo-gravimetric analysis(TG), and differential scanning calorimetry(DSC). The physical properties were determined by conducting asphalt penetration, softening point and ductility tests. The results show that increasing the preparation temperature results in an increased softening point of WPE-modified asphalt while decreased penetration and ductility. In addition, this variation was accentuated by aging the experimental materials. The modification process of WPE is a physical process. During the asphalt modification process, the WPE aged as the preparation temperature increased. The results revealed that 190 C is the most suitable preparation temperature, and the post aged asphalt demonstrated improved high temperature stability. | Changqing Fang Mengya Zhang Ruien Yu Xiaolong Liu | 2015 | Journal of Materials Science & Technology2015,31,3: | 11 |
| 4 | OsSPL18 controls grain weight and grain number in rice显示文摘Grain weight and grain number are two important traits directly determining grain yield in rice. To date,a lot of genes related to grain weight and grain number have been identified; however, the regulatory mechanism underlying these genes remains largely unknown. In this study, we studied the biological function of OsSPL18 during grain and panicle development in rice. Knockout (KO) mutants of OsSPL18exhibited reduced grain width and thickness, panicle length and grain number, but increased tiller number. Cytological analysis showed that OsSPL18 regulates the development of spikelet hulls by affecting cell proliferation. qRT-PCR and GUS staining analyses showed that OsSPL18 was highly expressed in developing young panicles and young spikelet hulls, in agreement with its function in regulating grain and panicle development. Transcriptional activation experiments indicated that OsSPL18is a functional transcription factor with activation domains in both the N-terminus and C-terminus, and both activation domains are indispensable for its biological functions. Quantitative expression analysis showed that DEP1, a major grain number regulator, was significantly down-regulated in OsSPL18 KO lines.Both yeast one-hybrid and dual-luciferase (LUC) assays showed that OsSPL18 could bind to the DEP1promoter, suggesting that OsSPL18 regulates panicle development by positively regulating the expression of DEP1. Sequence analysis showed that OsSPL18 contains the OsmiR156k complementary sequence in the third exon; 5?RLM-RACE experiments indicated that OsSPL18 could be cleaved by OsmiR156k. Taken together, our results uncovered a new OsmiR156k-OsSPL18-DEP1 pathway regulating grain number in rice. | Hua Yuan Peng Qin Li Hu Shijie Zhan Shifu Wang Peng Gao Jing Li Mengya Jin Zhengyan Xu Qiang Gao Anping Du Bin Tu Weilan Chen Bingtian Ma Yuping Wang Shigui Li | 2019 | Journal of Genetics and Genomics2019,46,1: | 8 |
| 5 | Bile acids evoke placental inflammation by activating Gpbar1/NF-κB pathway in intrahepatic cholestasis of pregnancy显示文摘Intrahepatic cholestasis of pregnancy(ICP)is a cholestatic disorder with potentially deleterious consequences for fetuses.Although a clear correlation between the elevated levels of maternal serum bile acids and deficient fetal outcome has been established in clinical practice,the underlying mechanisms remain elusive.Herein,we report that bile acids induce NF-κB pathway activation via G protein-coupled bile acid receptor 1(Gpbar1),with consequent upregulation of inflammatory genes in trophoblasts,leading to aberrant leukocyte infiltration and inflammation in placenta.Ursodeoxycholic acid(UDCA),a drug used clinically to treat ICP,competes with other bile acids for binding with Gpbar1 and thus inhibits bile acid-induced inflammatory response in trophoblasts and improves fetal survival in pregnant rats with obstructive cholestasis.Notably,inhibition of NF-κB by andrographolide is more effective than UDCA in benefiting placentas and fetuses.Thus,anti-inflammation therapy targeting Gpbar1/NF-κB pathway could be effective in suppressing bile acid-induced inflammation and alleviating ICP-associated fetal disorders. | YouHua Zhang YouDong Pan ChangDong Lin YaJuan Zheng Hao Sun HaiLong Zhang JunLei Wang MengYa Yuan Tao Duan QiaoLing Du JianFeng Chen | 2016 | Journal of Molecular Cell Biology2016,8,6: | 8 |
| 6 | Low-noise 1.3 μm InAs/GaAs quantum dot laser monolithically grown on silicon显示文摘We report low-noise, high-performance single transverse mode 1.3 μm InAs/GaAs quantum dot lasers monolithically grown on silicon(Si) using molecular beam epitaxy. The fabricated narrow-ridge-waveguide Fabry–Perot(FP) lasers have achieved a room-temperature continuous-wave(CW) threshold current of 12.5 mA and high CW temperature tolerance up to 90°C. An ultra-low relative intensity noise of less than-150 dB∕Hz is measured in the 4–16 GHz range. Using this low-noise Si-based laser, we then demonstrate 25.6 Gb/s data transmission over13.5 km SMF-28. These low-cost FP laser devices are promising candidates to provide cost-effective solutions for use in uncooled Si photonics transmitters in inter/hyper data centers and metropolitan data links. | MENGYA LIAO SIMING CHEN ZHIXIN LIU YI WANG LALITHA PONNAMPALAM ZICHUAN ZHOU JIANG WU MINGCHU TANG SAMUEL SHUTTS ZIZHUO LIU PETER M.SMOWTON SIYUAN YU ALWYN SEEDS HUIYUN LIU | 2018 | Photonics Research2018,,11: | 7 |
| 7 | Transporter-Mediated Nuclear Entry of Jasmonoyl-lsoleucine Is Essential for Jasmonate Signaling显示文摘到由直接对荷尔蒙集中作出回应的控制基因表示,动物和植物房间利用了可比较的机制在原子核察觉到小分子的荷尔蒙。这些荷尔蒙的原子入口是否活跃地通常被搬运或消极地扩散了,,,要求了,通过原子毛孔建筑群,仍然保持神秘。这里,我们在 Arabidopsis thaliana 识别了并且描绘 jasmonate transporter, AtJAT1/AtABCG16,哪个展览在原子信封和血浆的意外双本地化膜。我们证明 AtJAT1/AtABCG16 由两个都调停控制 jasmonate 植物激素的细胞质、原子的分区 jasmonic 酸(JA ) 和 jasmonoyl 异白氨酸(JA-Ile ) 的原子流入的细胞的流出,并且为维持批评原子 JA-Ile 集中激活 JA 发信号是必要的。这些结果说明小荷尔蒙分子的那个调停运输的原子条目调整原子荷尔蒙的新机制正在发信号。我们的调查结果提供一条大街开发指向小分子的原子入口的药品的代理人。 | Qingqing Li Jian Zheng Shuaizhang Li Guanrong Huang Stephen J. Skilling Lijian Wang Ling Li Mengya Li Lixing Yuan Pei Liu | 2017 | Molecular Plant2017,10,5: | 6 |
| 8 | Synergistic Effect between Zr-MOF and Phosphotungstic Acid for Oxidative Desulfurization显示文摘PTA/UiO-66 composites were successfully synthesized by the hydrothermal method.The results showed that the synergistic effect between phosphotungstic acid(PTA)and UiO-66 could enhance the oxidative desulfurization(ODS)activity.The XRD results proved that UiO-66 retained its structure in the PTA/UiO-66 composites.The SEM results showed that the PTA/UiO-66 catalysts exhibited regular octahedral shape.The Raman spectra revealed that PTA in the composites retained the Keggin structure.The XPS results showed that the electron transfer occurred from Zr-MOF to PTA.The ODS reaction mechanism was discussed.Electrons transfer from Zr-MOF to PTA can promote the generation of active species(·OH)and thus enhance the ODS activity.This explanation can be confirmed by the formation of oxygen vacancy and W0 as revealed by the XPS analysis. | Zong Mengya Zhao Yutong Fan Cunzheng Wang Danhong | 2020 | China Petroleum Processing & Petrochemical Technology2020,22,4: | 5 |
| 9 | Effect of Doped Vanadium Dioxide on Oxidative Desulfurization Reaction显示文摘VO2(M) doped with different metals(Ti, Ce, Nb, Zr, W, and Mo) was successfully synthesized by the hydrothermal reduction process using oxalic acid as the reductant. The results showed that doping metals in the VO2(M) lattice could enhance the oxidative desulfurization(ODS) activity. The DSC and Raman spectra revealed that VO2(M) retained its monoclinic structure after doping. Mechanism for the improvement of ODS activity by doping was investigated. Electron transfer to V(V) atom occurs upon doping, and then V(V) changes into V(IV), which can promote the ODS reaction. This explanation can be confirmed by the fact that doping can promote the proportion of V(Ⅳ) after doping as revealed by the XPS analysis. | Zhao Yutong Zong Mengya Fan Cunzheng Chen Kun Wang Danhong Zhang Minghui | 2019 | China Petroleum Processing & Petrochemical Technology2019,21,4: | 4 |
| 10 | Exercise promotes angiogenesis by enhancing endothelial cell fatty acid utilization via liver-derived extracellular vesicle miR-122-5p显示文摘Background:Angiogenesis constitutes a major mechanism responsible for exercise-induced beneficial effects.Our previous study identified a cluster of differentially expressed extracellular vesicle microRNAs(miRNAs)after exercise and found that some of them act as exerkines.However,whether these extracellular vesicle miRNAs mediate the exercise-induced angiogenesis remains unknown.Methods:A 9-day treadmill training was used as an exercise model in C57BL/6 mice.Liver-specific adeno-associated virus 8 was used to knock down microRNA-122-5p(miR-122-5p).Human umbilical vein endothelial cells were used in vitro.Results:Among these differentially expressed extracellular vesicle miRNAs,miR-122-5p was identified as a potent pro-angiogenic factor that activated vascular endothelial growth factor signaling and promoted angiogenesis both in vivo and in vitro.Exercise increased circulating levels of miR-122-5p,which was produced mainly by the liver and shuttled by extracellular vesicles in mice.Inhibition of circulating miR-122-5p or liver-specific knockdown of miR-122-5p significantly abolished the exercise-induced pro-angiogenic effect in skeletal muscles,and exerciseimproved muscle performance in mice.Mechanistically,miR-122-5p promoted angiogenesis through shifting substrate preference to fatty acids in endothelial cells,and miR-122-5p upregulated endothelial cell fatty-acid utilization by targeting 1-acyl-sn-glycerol-3-phosphate acyltransferase(AGPAT1).In addition,miR-122-5p increased capillary density in perilesional skin tissues and accelerated wound healing in mice.Conclusion:These findings demonstrated that exercise promotes angiogenesis through upregulation of liver-derived extracellular vesicle miR-122-5p,which enhances fatty acid utilization by targeting AGPAT1 in endothelial cells,highlighting the therapeutic potential of miR-122-5p in tissue repair. | Jing Lou Jie Wu Mengya Feng Xue Dang Guiling Wu Hongyan Yang Yan Wang Jia Li Yong Zhao Changhong Shi Jiankang Liu Lin Zhao Xing Zhang Feng Gao | 2022 | Journal of Sport and Health Science2022,11,4: | 4 |
| 11 | Genetic basis of high aroma and stress toleranee in the oolong tea cultivar genome显示文摘Tea plants(Camellia sinensis)are commercially cultivated in>60 countries,and their fresh leaves are processed into tea,which is the most widely consumed beverage in the world.Although several chromosome-level tea plant genomes have been published,they collapsed the two haplotypes and ignored a large number of allelic variations that may underlie important biological functions in this species.Here,we present a phased chromosome-scale assembly for an elite oolong tea cultivar,'Huangdan',that is well known for its high levels of aroma.Based on the two sets of haplotype genome data,we identi fi ed numerous genetic variations and a substantial proportion of allelic imbalance related to important traits,including aroma-and stress-related alleles.Comparative genomics revealed extensive structural variations as well as expansion of some gene families,such as terpene synthases(TPSs),that likely contribute to the high-aroma characteristics of the backbone parent,underlying the molecular basis for the biosynthesis of aroma-related chemicals in oolong tea.Our results uncovered the genetic basis of special features of this oolong tea cultivar,providing fundamental genomic resources to study evolution and domestication for the economically important tea crop. | Pengjie Wang Jiaxin Yu Shan Jin Shuai Chen Chuan Yue Wenling Wang Shuilian Gao Hongli Cao Yucheng Zheng Mengya Gu Xuejin Chen Yun Sun Yuqiong Guo Jiangfan Yang Xingtan Zhang Naixing Ye | 2021 | Horticulture Research2021,8,1: | 4 |
| 12 | Identification of PAL genes related to anthocyanin synthesis in tea plants and its correlation with anthocyanin content显示文摘The phenylalanine ammonia-lyase(PAL)gene family in tea plants(Camellia sinensis L.)encodes the enzyme that catalyzes the first reaction of the phenylpropane metabolic pathway.The present study aimed to characterize the PAL genes in tea plants,and get better insights on the CsPALs in anthocyanins accumulation.Seven CsPAL genes were identified and characterized in tea plants by bioinformatics analysis.Systematic analysis of CsPALs was conducted for its phylogenetic relationship,gene structure,chromosomal location,and protein conserved motifs based on tea plant genome.The cis-elements of CsPALs were responsive to light,abiotic stress,hormone,and MYB-binding site.Furthermore,tissuespecific expression analysis showed that CsPAL4 was expressed preferentially in young leaves and buds.Correlation analysis was performed in purple-leaf tea with anthocyanin components,and it was suggested that CsPAL4 was closely related with different anthocyanin accumulated,especially with cyanidin 3-O-galactoside,cyanidin 3-O-glucoside,and delphinidin 3-O-glucoside.Additionally,the putative upstream regulation factors CsMYBs(CsMYB59,CsARR1,CsSRM1,CsMYB101,and CsMYB52)and CsbHLHs(CsbHLH104,CsbHLH3,CsbIM1,CsTCP14,and CsPIF4)could bind to the promoter of CsPALs,thereby activating its transcription.This study provides a theoretical basis for further research to elucidate the functions of the CsPAL genes. | Xuejin Chen Pengjie Wang Mengya Gu Binghao Hou Churan Zhang Yucheng Zheng Yun Sun Shan Jin Naixing Ye | 2022 | Horticultural Plant Journal2022,8,3: | 4 |
| 13 | Importers Drive Leaf-to-Leaf Jasmonic Acid Transmission in Wound-Induced Systemic Immunity显示文摘The transmission of mobile wound signals along the phloem pathway is essential to the activation of wound-induced systemic response/resistance,which requires an upsurge of jasmonic acid(JA)in the distal undamaged leaves.Among these mobile signals,the electrical signal mediated by the glutamate-dependent activation of several clade three GLUTAMATE RECEPTOR-LIKE(GLR3)proteins is involved in the stimulation of JA production in distal leaves.However,whether JA acts as a mobile wound signal and,if so,how it is transmitted and interacts with the electrical signal remain unclear.Here,we show that JA was translocated from the local to distal leaves in Arabidopsis,and this process was predominantly regulated by two phloem-expressed and plasma membrane-localized jasmonate transporters,AtJAT3 and AtJAT4.In addition to the cooperation between AtJAT3/4 and GLR3.3 in the regulation of long-distance JA translocation,our findings indicate that importer-mediated cell-cell JA transport is important for driving the loading and translocation of JA in the phloem pathway in a self-propagating manner. | Mengya Li Feifei Wang Shuangzhang Li Guanghui Yu Lijian Wang Qingqing Li Xiangyu Zhu Zhen Li Lixing Yuan Pei Liu | 2020 | Molecular Plant2020,13,10: | 3 |
| 14 | Spatio-temporal characteristics and causes of changes in erosion-accretion in the Yangtze (Changjiang) submerged delta from 1982 to 2010显示文摘对加速河建水坝和灌溉的 Yangtze 三角洲反应是全球担心的一个话题。这研究分析了沉没三角洲前面,在不同分区的时间空间的变化模式,在典型剖面图的 geomorphological 变化,和四个主要分区的 geomorphological 原因的一般侵蚀生长(Chongming厘米的东方潮汐的沼泽地, Hengsha shoal-HS , Jiuduansha wetland-JDS ,并且 Nanhui-NH 的东方潮汐的沼泽地)。数据来源包括测量在的地志的数据高分辨率,在 Datong 车站的沉积负担,和相应河口构造信息。主要调查结果是:(1 ) 一般来说,学习区域稍微侵蚀了(侵蚀区域比率是 51.83% ,生长区域比率是 48.17%) 从 1982 ~ 2010,并且它经历了 erosion-accretion-erosion 的移动。地形学的时间空间的变化在八个分区也是重要的,排除在北方隧道的经常的侵蚀;( 2 )在在 NH 的 5 m 深线以内的东方、北的厘米和 HS ,北 JDS ,和这个区域的进化被垂直免职统治,它在南部的厘米和 HS 是那的反面,并且在东方、南部的 JDS 的 5 m 深线以内的区域;( 3 )总体上, 2 m 的包含的表面区域( ESA )和 5 m ,深线不停地增加,并且年度生长率在 19822010 期间分别地到达了 10.42 km 2/yr 和 7.99 km 2/yr (然而,四个分区展出了争论),并且在整个区域和所有分区, 10 m 深线的 ESA 减少了,当 15 m 深线的 ESA 在时期期间稍微变化了并且仍然保持稳定时;(4 ) 是更少由设计的河口影响了,厘米是深线的 ESA 根据沉积负担的衰落减少了的唯一的分区。主要结论是河口工程工程在对沉积负担, ESA 的变化和深线的分发的减小的宏背景影响沉没三角洲起一个日益重要的作用。与国际发货中心和开垦投射的上海的加速的构造一起,沉没三角洲的 geomorphological 进化将变得更复杂并且因此值得以后的经常的监视。 | SUN Xiaojing WANG Jun LI Mengya ZHENG Lu | 2015 | Journal of Geographical Sciences2015,25,8: | 3 |
| 15 | Cardiac fibroblast heat shock protein 47 aggravates cardiac fibrosis post myocardial ischemia-reperfusion injury by encouraging ubiquitin specific peptidase 10 dependent Smad4 deubiquitination显示文摘Despite complications were significantly reduced due to the popularity of percutaneous coronary intervention(PCI) in clinical trials, reperfusion injury and chronic cardiac remodeling significantly contribute to poor prognosis and rehabilitation in AMI patients. We revealed the effects of HSP47 on myocardial ischemia-reperfusion injury(IRI) and shed light on the underlying molecular mechanism.We generated adult mice with lentivirus-mediated or miRNA(mi1/133TS)-aided cardiac fibroblastselective HSP47 overexpression. Myocardial IRI was induced by 45-min occlusion of the left anterior descending(LAD) artery followed by 24 h reperfusion in mice, while ischemia-mediated cardiac remodeling was induced by four weeks of reperfusion. Also, the role of HSP47 in fibrogenesis was evaluated in cardiac fibroblasts following hypoxia-reoxygenation(HR). Extensive HSP47 was observed in murine infarcted hearts, human ischemic hearts, and cardiac fibroblasts and accelerated oxidative stress and apoptosis after myocardial IRI. Cardiac fibroblast-selective HSP47 overexpression exacerbated cardiac dysfunction caused by chronic myocardial IRI and presented deteriorative fibrosis and cell proliferation.HSP47 upregulation in cardiac fibroblasts promoted TGFβ1-Smad4 pathway activation and Smad4 deubiquitination by recruiting ubiquitin-specific peptidase 10(USP10) in fibroblasts. However, cardiac fibroblast specific USP10 deficiency abolished HSP47-mediated fibrogenesis in hearts. Moreover, blockage of HSP47 with Col003 disturbed fibrogenesis in fibroblasts following HR. Altogether, cardiac fibroblast HSP47 aggravates fibrosis post-myocardial IRI by enhancing USP10-dependent Smad4 deubiquitination,which provided a potential strategy for myocardial IRI and cardiac remodeling. | Saiyang Xie Yun Xing Wenke Shi Min Zhang Mengya Chen Wenxi Fang Shiqiang Liu Tong Zhang Xiaofeng Zeng Si Chen Shasha Wang Wei Deng Qizhu Tang | 2022 | Acta Pharmaceutica Sinica B2022,12,11: | 3 |
| 16 | DFOS Applications to Geo-Engineering Monitoring显示文摘Optical fiber sensing technology has developed rapidly since the 1980s with the development of the optical fiber and fiber optical communication technology.It is a new type of sensing technology that uses light as a carrier and optical fiber as a medium to sense and transmit external signals(measurands).Distributed fiber optical sensors(DFOS)can continuously measure the external physical parameters distributed along the geometric path of the optical fiber.Meanwhile,the spatial distribution and change information of the measured physical parameters over time can be obtained.This technology has unmatched advantages over traditional point-wise and electrical measurement monitoring technologies.This paper summarizes the state-of-the-art research of the application of the distributed optical fiber sensing tech no logy in geo-engineering in the past 10 years,mainly including the advantages of DFOS,the challenges in geo-engineering monitoring,related fundamental theoretical issues,sensing performance of the optical sensing cables,distributed optical fiber monitoring system for geo-engineering,and applications of optical fiber sensing technology in geo-engineering. | Bin SHI Dan ZHANG Honghu ZHU Chengcheng ZHANG Kai GU Hongwei SANG Heming HAN Mengya SUN Jie LIU | 2021 | Photonic Sensors2021,11,2: | 3 |
| 17 | HMGB1 from Astrocytes Promotes EAE by Influencing the Immune Cell Infiltration-Associated Functions of BMECs in Mice显示文摘High mobility group box 1(HMGB1)has been reported to play an important role in experimental autoimmune encephalomyelitis(EAE).Astrocytes are important components of neurovascular units and tightly appose the endothelial cells of microvessels by their perivascular endfeet and directly regulate the functions of the blood-brain barrier.Astrocytes express more HMGB1 during EAE while the exact roles of astrocytic HMGB1 in EAE have not been well elucidated.Here,using conditional-knockout mice,we found that astrocytic HMGB1 depletion decreased morbidity,delayed the onset time,and reduced the disease score and demyelination of EAE.Meanwhile,there were fewer immune cells,especially pathogenic T cells infiltration in the central nervous system of astrocytic HMGB1 conditional-knockout EAE mice,accompanied by up-regulated expression of the tight-junction protein Claudin5 and down-regulated expression of the cell adhesion molecules ICAM1 and VCAM1 in vivo.In vitro,HMGB1 released from astrocytes decreased Claudin5 while increased ICAM1 and VCAM1 expressed by brain microvascular endothelial cells(BMECs)through TLR4 or RAGE.Taken together,our results demonstrate that HMGB1 derived from astrocytes aggravates EAE by directly influencing the immune cell infiltration-associated functions of BMECs. | Junyu Shi Yifan Xiao Na Zhang Mengya Jiao Xuhuan Tang Chan Dai Chenchen Wang Yong Xu Zheng Tan Feili Gong Fang Zheng | 2022 | Neuroscience Bulletin2022,38,11: | 3 |
| 18 | Effects of Fertility and Density on Biomass Production,Translocation and Lodging Resistance of Millet(Setaria italica L.)in North China显示文摘In this study,the plant biomass production,biomass translocation rates across tissues and the lodging resistant-associated traits of millet( Setaria italica L.) in North China were investigated. Among the four summer millet cultivars,Baogu 19 exhibited improved plant biomass( PB) production at flowering and maturity stages,biomass translocation amount( BTA) from vegetative tissues to seeds during filling period,and lodging resistant-associated( LRA) traits compared with other cultivars,including enhanced stem lignin contents,increased anti-broken resistance( ABR),anti-puncturing resistance( APR),and stem diameter( SD) of plants. Compared with treatment regular cultivation( RC),high fertility treatment( HF) increased the plant BP,BTA from vegetative tissue to seed at filling stage,and the plant LRA traits; whereas high density treatment( HD) decreased the plant BP at plant level,plant BTA from vegetative tissues to seeds at filling stage,and the plant LRA traits. Correlation analysis revealed that stem ABR is significantly correlated with the plant lodging resistant-associated traits including APR and SD in the summer millet cultivars examined under various cultivation treatments. Our investigation indicates that cultivar Baogu 19 together with suitable fertilization and density can promote the plant biomass production,enhance vegetative tissue biomass translocation to seeds,and improve the lodging resistance of summer millet plants in North China. | Qing ZHAO Guoshun ZHAO Mengya YANG Susheng CHEN Kai XIAO | 2018 | Agricultural Biotechnology2018,7,5: | 2 |
| 19 | Metabolism, signaling, and transport of jasmonates显示文摘Biosynthesis/metabolism,perception/signaling,and transport are three essential aspects of the actions of phytohormones.Jasmonates(JAs),including jasmonic acid(JA)and related oxylipins,are implicated in the regulation of a range of ecological interactions,as well as developmental programs to integrate these interactions.Jasmonoyl-isoleucine(JA-Ile)is the most bioactive JAs,and perception of JA-Ile by its coreceptor,the Skp1-Cullin1-F-box-type(SCF)protein ubiquitin ligase complex SCF^(COI1)-JAZ,in the nucleus derepresses the transcriptional repression of target genes.The biosynthesis and metabolism of JAs occur in the plastid,peroxisome,cytosol,endoplasmic reticulum,and vacuole,whereas sensing of JA-Ile levels occurs in the nucleus.It is increasingly apparent that a number of transporters,particularly members of the jasmonates transporter(JAT)family,located at endomembranes as well as the plasma membrane,constitute a network for modulating and coordinating the metabolic flux and signaling of JAs.In this review,we discuss recent advances in the metabolism,signaling,and especially the transport of JAs,focusing on intracellular compartmentation of these processes.The roles of transporter-mediated cell-cell transport in driving long-distance transport and signaling of JAs are also discussed. | Mengya Li Guanghui Yu Congli Cao Pei Liu | 2021 | Plant Communications2021,2,5: | 2 |
| 20 | Fabrication of highly water-repelling paper by surface coating with stearic acid modified calcium carbonate particles and reactive biopolymers显示文摘Cellulose paper is the most attractive green packaging material due to its recyclability, renewability, sustainability and biodegradability. In some applications, paper with a high level of water resistance is desirable to meet specific requirements in modern packaging fields. This research aimed to develop a water-repelling paper with cost-effective and nontoxic materials. Commercial precipitated calcium carbonate (PCC) particles were modified by stearic acid (SA) and incorporated with soybean oil-based binder as a water repelling coating agent. The water-repelling efficiency of the coated paper was highly dependent on the ratio of SA / PCC as well as the binder content in the coating formula. PCC particles modified with 12wt% SA were efficient in increasing the water contact angle (WCA) of the coated paper to 146° at a coating weight of 5 g/m2. The binder for the coating was synthesized with acrylated epoxidized soybean oil (AESO) through Michael addition reaction. The triglyceride structure in the polymer chain imparted good bio-degradability to the binder polymer. It was found that surface modification of PCC with stearic acid played an important role in improving the WCA of paper. A super hydrophobic paper with a WCA of 162° was fabricated with a coating formula of 60% SA-modified PCC and 40 wt% AESO-binder. | Zhiwei Wang Min Yi Zheyun Zhang Mengya Guo Peng Lu Zheng Chen Shuangfei Wang | 2017 | Journal of Bioresources and Bioproducts2017,2,2: | 2 |