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| 1 | Neuroprotective effect of ischemic preconditioning in focal cerebral infarction: relationship with upregulation of vascular endothelial growth factor显示文摘Neuroprotection by ischemic preconditioning has been confirmed by many studies, but the precise mechanism remains unclear. In the present study, we performed cerebral ischemic preconditioning in rats by simulating a transient ischemic attack twice(each a 20-minute occlusion of the middle cerebral artery) before inducing focal cerebral infarction(2 hour occlusion-reperfusion in the same artery). We also explored the mechanism underlying the neuroprotective effect of ischemic preconditioning. Seven days after occlusion-reperfusion, tetrazolium chloride staining and immunohistochemistry revealed that the infarct volume was significantly smaller in the group that underwent preconditioning than in the model group. Furthermore, vascular endothelial growth factor immunoreactivity was considerably greater in the hippocampal CA3 region of preconditioned rats than model rats. Our results suggest that the protective effects of ischemic preconditioning on focal cerebral infarction are associated with upregulation of vascular endothelial growth factor. | Yong Liu Suiqiang Zhu Yunfu Wang Jingquan Hu Lili Xu Li Ding Guangjian Liu | 2014 | Neural Regeneration Research2014，9，11： | 15 |
| 2 | Significance of fossilized microbes from the Cambrian stromatolites in the Tarim Basin, Northwest China显示文摘Samples of the Cambrian microbial dolomites were collected from Penglaiba section,a well-exposed stratigraphic section in the northwestern area of the Tarim Basin.This study provides an analogue for mediated dolomites that can precipitate in microbial mats and biofilms.The Cambrian stromatolitic dolomites were studied using high-resolution scanning electron microscopy.The results are as follows:(1)dolomites with 50 nm to 100 nm spherical nanostructures are aggregated into minerals of larger sphericities;(2)nanospherical dolomites of 50 nm to 170 nm diameter are densely arranged as dumbbell-shaped or chained aggregates;(3)silicified filaments,as well as dumbbell-shaped and chain arrangements,are preserved as important microstructures.On the basis of sedimentological,compositional,geochemical,and petrographic data,the microstructures were interpreted as nanoglobules that function as bacteria in the nucleation and filament mineralization stages.The microstructures function as such because they are wrapped in extracellular polymeric substance(EPS)or mucus and mineralized fossils.Silicification accounts for the exceptional preservation of microbial mat structures,including biofilms,as well as filamentous and coccoid microbes.In addition,EPS process is capable of binding different elements,with preference for Si,Mg,and Ca.Such suitable composition favors microbe mineralization and dolomite nucleation on organic substrates.These microscopic structures suggest bacterial mineralization and provide visual evidence for the origin of microbial dolomites. | YOU XueLian SUN Shu ZHU JingQuan | 2014 | Science China Earth Sciences2014，57，12： | 10 |
| 3 | Using in situ REE analysis to study the origin and diagenesis of dolomite of Lower Paleozoic,Tarim Basin显示文摘In situ REE concentrations of various dolomites from Tarim Basin were obtained by LA-ICP-MS analysis,and the data were normalized to standard seawater(Seawater Normalized=SWN).Most of the samples have a ΣREE range of less than 20 ppm.All samples show similar REESWN distributions with heavy REE depletion,and positive Ce anomaly,which indicates that they have the same dolomitization fluids(seawater).According to the origin and diagenetic process of dolomite,two types of dolomite are determined and described as follows:1) syndepositional dolomite,with the highest REE concentrations(more than 20 ppm),the cores of which are more enriched in REE compared with their cortexes,indicating that they underwent the dolomitization of calcareous sediments by hypersaline and subsequent diagenesis decreased the REE content of the cortex because of the low REE concentration of the diagenetic fluids;2) diagenetic dolomite,which can be subdivided into four groups.(1) burial dolomite which has higher REE concentrations than limestone,but lower than syndepositional dolomite.This shows that pore fluids with high salinity dolomitized the pre-existing limestone;(2) void filling dolomite which has the similar REE patterns with the matrix dolomite.In addition,the Eu anomaly is not obvious,suggesting that the dolomitization fluids originated from the diagenetic fluids;(3) recrystallized dolomite,whose REE concentration was obviously decreased,indicating that the REE concentration was decreased during the recrystallization processes;and(4) hydrothermal altered void-filling dolomite,which has the lowest REE concentration,but obvious positive Eu anomaly,reflecting its hydrothermal activity related origin.Thus,the diverse REE signatures,which were recorded in different dolomites,retain the information of their formation conditions and subsequent diagenetic processes.In situ REE analysis of dolomite is an effective probe into the origin and diagenetic process of dolomite. | WANG XiaoLin JIN ZhiJun HU WenXuan ZHANG JunTao QIAN YiXiong ZHU JingQuan LI Qing | 2009 | Science China Earth Sciences2009，52，5： | 7 |
| 4 | Reservoir space of the Es_3~3–Es_4~1shale in Dongying sag显示文摘The Es33–Es41shales in Dongying sag are source rocks with large reserves of shale oil and gas. For the identification of development characteristics and geological significance of the reservoir space, FMI logging,core observation, thin section analysis, X-ray diffraction, fluorescence microscopy, scanning electron microscopy, mercury porosimetry, low-temperature nitrogen adsorption, atomic force microscopy, and conventional physical property testing were used to study the petrology and reservoir space of the Es33–Es41shale in Dongying sag. The results suggest that the shale is rich in carbonate minerals. Phanerocrystalline stratiform and lamellar argillaceous limestone and calcareous claystone are the oil- and gas-bearing lithofacies. The oil in the micropores is mainly present as membranes and clots. The shale reservoir space has a network structure with veins, carbonate and clay minerals, and micropores among pyrite and the matrix. The results provide the geological framework for future shale oil and gas exploration in Dongying sag. | Hao Yunqing Chen Fukun Zhu Jingquan Zhang Shoupeng | 2014 | International Journal of Mining Science and Technology2014，24，4： | 4 |
| 5 | REE Compositions of Lower Ordovician Dolomites in Central and North Tarim Basin,NW China:A Potential REE Proxy for Ancient Seawater显示文摘摘要:在中央、北的 Tarim 盆的更低的奥陶纪白云石的稀土元素元素作文被学习。大多数白云石样品被泥土矿物质差不多污染。他们的稀土元素元素作文因而被改变了,出现像海水并且 non-seawater-like 特征。在 REE 数据被使用以前,泥土污染应该被处理。通过 ICPMS 和 ICP-AES 分析, REE 特征很好被记录。泥土污染是显微镜的调查,踪迹元素和 REE 内容决定的份量上。至少在 Tarim 盆,当他们的全部的 LREE 内容是不到 3times10 时,白云石被认为纯 ? 6。通过比较,纯白云石在 REE 模式显示出类似但是在 REE 的差别与共存的纯石灰石满足,它显示化成白云石可以稍微改变 REE 作文。不过,变化是无论什么,纯白云石可以为奥陶纪海水充当一个潜在的 REE 代理,它将为缺乏石灰石的古老的巨大的白云石阶层是重要的。 | ZHANG Xuefeng HU Wenxuan JIN Zhijun ZHANG Juntao QIAN Yixiong ZHU Jingquan ZHU Dongya WANG Xiaolin XIE Xiaomin | 2008 | Acta Geologica Sinica(English Edition)2008，82，3： | 3 |
| 6 | Silicon alleviates salt stress and increases antioxidant enzymes activity in leaves of salt-stressed cucumber ( Cucumis sativus L.)显示文摘 | Zhujun Zhu Guoqiang Wei Juan Li Qiongqiu Qian Jingquan Yu | 2004 | Plant Science2004，，3： | 1 |
| 7 | Formation of saddle dolomites in Upper Cambrian carbonates, western Tarim Basin (northwest China): Implications for fault-related fluid flow显示文摘 | Juntao Zhang Wenxuan Hu Yixiong Qian Xiaolin Wang Jian Cao Jingquan Zhu Qing Li Xiaomin Xie | 2009 | Marine and Petroleum Geology2009，，8： | 1 |
| 8 | Synthesis and Photoluminescence Enhancement of Silver Nanoparticles Decorated Porous Anodic Alumina显示文摘Silver nanoparticles(Ag NPs) were successfully assembled in porous anodic alumina(AAO) templates via a green silver mirror reaction.The Ag NPs/AAO composite templates then were characterized by field emission scanning electron microscopy(FESEM),energy-dispersive X-ray microanalysis(EDX),and X-ray diffraction(XRD).Furthermore,the photoluminescence(PL) properties were also investigated.Compared with the blank AAO,the PL intensity of Ag NPs/AAO templates are enhanced and the maximum enhancement is 2.58 times.Based on the local electric field enhancement effect,the theoretical values were also deduced,which are basically coincident with the experimental. | Song Ye Yidong Hou Renyi Zhu Shulong Gu Jingquan Wang Zhiyou Zhang Sha Shi Jinglei Du | 2011 | Journal of Materials Science & Technology2011，27，2： | 1 |
| 9 | Long-distance correlation between tectonic-controlled, iso- lated carbonate platforms by cyclostratigraphy and sequence stratigraphy in the Devonian of South China 显示文摘 | Chen Daizhao Tucker M E Jiang Maosheng Zhu Jingquan | 2001 | Sedimentol- ogy2001，48，1： | 1 |
| 10 | Formation of saddle dolomites in Upper Cambrian carbonates, western Tarim Basin (northwest China): Implications for fault-related fluid flow显示文摘 | Juntao Zhang Wenxuan Hu Yixiong Qian Xiaolin Wang Jian Cao Jingquan Zhu Qing Li Xiaomin Xie | 2009 | Marine and Petroleum Geology2009，，8： | 1 |
| 11 | Complex microstructure fabrication by integrating silicon anisotropic etching and UV-LIGA technology显示文摘 | 靖向萌 Chen Di Huang Chuang Chen Xiang Liu Jingquan Zhu Jun | 2007 | High Technology Letters2007，13，4： | 0 |
| 12 | Ultrasensitive proteomics depicted an in-depth landscape for the very early stage of mouse maternal-to-zygotic transition显示文摘Single-cell or low-input multi-omics techniques have revolutionized the study of pre-implantation embryo development.However,the single-cell or low-input proteomic research in this field is relatively underdeveloped because of the higher threshold of the starting material for mammalian embryo samples and the lack of hypersensitive proteome technology.In this study,a comprehensive solution of ultrasensitive proteome technology(CS-UPT)was developed for single-cell or low-input mouse oocyte/embryo samples.The deep coverage and high-throughput routes significantly reduced the starting material and were selected by investigators based on their demands.Using the deep coverage route,we provided the first large-scale snapshot of the very early stage of mouse maternal-to-zygotic transition,including almost 5,500 protein groups from 20 mouse oocytes or zygotes for each sample.Moreover,significant protein regulatory networks centered on transcription factors and kinases between the MII oocyte and 1-cell embryo provided rich insights into minor zygotic genome activation. | Lei Gu Xumiao Li Wencheng Zhu Yi Shen Qinqin Wang Wenjun Liu Junfeng Zhang Huiping Zhang Jingquan Li Ziyi Li Zhen Liu Chen Li Hui Wang | 2023 | Journal of Pharmaceutical Analysis2023，13，8： | 0 |
| 13 | Potassium alleviated high nitrogen-induced apple growth inhibition by regulating photosynthetic nitrogen allocation and enhancing nitrogen utilization capacity显示文摘There is a close relationship between potassium(K)and nitrogen(N).However,the roles of K under high N conditions remain unclear.Using a hydroponics approach,we monitored the morphological,physiological,and molecular changes in M9T337 apple(Malus domestica)rootstocks under different nitrate(10 and 30 mmol·L^(-1)NO_(3)^(-))and K supply(0.5,6,10,and 20 mmol·L_(-1)K^(+))conditions.Results revealed that high nitrate inhibited the root growth of M9T337 rootstocks,downregulated the expressions of K transporter genes(MdPT5,MdHKT1,and MdATK1),and reduced the net NO3-and K+influx at the surface of roots,thereby resulting in an N/K imbalance in rootstocks.Further investigation showed that 10 mmol·L^(-1)K increased the activity of N metabolic enzymes(NR,GS,NiR,and GOGAT),upregulated the expressions of genes related to nitrate uptake and transport(MdNRT1.1,MdNRT1.2,MdNRT1.5,and MdNRT2.4),promoted15N transport from the roots to the shoots,optimized leaf N distribution,and improved photosynthetic N utilization efficiency under high nitrate conditions.These results suggest that the negative effects of high nitrate may be related to the N/K imbalance and that reducing N/K in plants by increasing K supply level can effectively alleviate the inhibition of N assimilation by high nitrate stress. | Xinxiang Xu Guangyuan Liu Jingquan Liu Mengxue Lyu Fen Wang Yue Xing Hao Meng Min Li Yu Jiang Ge Tian Zhanling Zhu Yuanmao Jiang Shunfeng Ge | 2024 | Horticultural Plant Journal2024，10，1： | 0 |
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