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| 1 | Oxidative stress in granulosa cells contributes to poor oocytequality and IVF-ET outcomes in women with polycystic ovarysyndrome显示文摘The increased levels of intraceHular reactive oxygen species (ROS) in granulosa cells (GCs) may allectthe pregnancy results in women with polycystic ovary syndrome (PCOS). In this study, we compared the in vitrofertilization and embryo transfer (IVF-ET) results of 22 patients with PCOS and 25 patients with tubal factorinfertility and detected the ROS levels in the GCs of these two groups. Results showed that the PCOS group hadsignificantly larger follicles on the administration day for human chorionic gonadotropin than the tubal factorgroup (P 〈 0.05); however, the number of retrieved oocytes was not significantly different between the two groups(P 〉 0.05). PCOS group had slightly lower fertilization, cleavage, grade IflI embryo, clinical pregnancy, andimplantation rates and higher miscarriage rate than the tubal factor group (P 〉 0.05). We further found asignificantly higher ROS level of GCs in the PCOS group than in the tubal factor group (P 〈 0.05). The increasedROS levels in GCs caused GC apoptosis, whereas NADPH oxidase 2 (NOX2) specific inhibitors (diphenyleneio-donium and apocynin) significantly reduced the ROS production in the PCOS group. In conclusion, the increasedROS expression levels in PCOS GCs greatly induced cell apoptosis, which further affected the oocyte quality andreduced the positive IVF-ET pregnancy results of women with PCOS. NADPH oxidase pathway may be involvedin the mechanism of ROS production in GCs of women with PCOS. | Qiaohong Lai Wenpei Xiang Qing Li Hanwang Zhang Yufeng Li Guijin Zhu Chengliang Xiong Lei Jin | 2018 | Frontiers of Medicine2018，12，5： | 26 |
| 2 | Study on early warning index of spatial deformation for high concrete dam显示文摘Owing to the deficiency in early warning for high concrete dam,a formula was established to characterize the deformation behavior of high concrete dam as a whole.The early warning index of spatial deformation was calculated by low probability principle on the basis of the deformation entropy formula proposed.The steps were as follows.Firstly,the probability method was utilized to define the degree of order and degree of chaos for each survey point.Secondly,the weight distribution among the survey points was calculated by projection pursuit analysis.Thirdly,the formula of holistic deformation entropy,which can represent the degree of order of high concrete dam,was established on the basis of synergetics and information entropy.Lastly,the early warning index of deformation entropy was computed by low probability method based on series of calculated deformation entropy values.An example showed that the dynamic property of deformation entropy is in accordance with both environmental variables and deflection deformation.Moreover,deformation entropy can be used to improve warning ability and safety management for high concrete dam. | LEI Peng CHANG XiaoLin XIAO Feng ZHANG GuiJin SU HuaiZhi | 2011 | Science China(Technological Sciences)2011，54，6： | 23 |
| 3 | Decomposition of hexachlorobenzene over Al_2O_3 supported metal oxidecatalysts显示文摘Decomposition of hexachlorobenzene(HCB)was investigated over several metal oxides(i.e.,MgO,CaO,BaO,La2O3,CeO2,MnO2, Fe2O3,and Co3O4)supported on Al2O3,which was achieved in closed system at a temperature of 300°C.Catalysts were prepared by incipient wetness impregnation with different metal oxides loading and impregnating solvents.The decomposition effciency of different catalysts for this reaction depends on the nature of the metal oxide used,and Al2O3 supported La2O3 was found to be the most active one.Pentachlorobenzene(PeCB),and all tetrachlorobenzene(TeCB),trichlorobenzene(TrCB),and dichlorobenzene(DCB)isomers were detected after the decomposition reaction,indicating that the decomposition was mainly a dechlorination process.The detection of all lower chlorinated benzenes suggested the complexity of decomposition and the presence of more than one dechlorination pathway. | Lifei ZHANG Minghui ZHENG Bing ZHANG Wenbin LIU Lirong GAO Te BA Zhiyuan REN Guijin SU | 2008 | Journal of Environmental Sciences2008，20，12： | 4 |
| 4 | Estimation of the rational water area for controlling wind erosion in the dried-up basin of the Ebinur Lake and its effect detection显示文摘埃比纳·莱克区域被描述为“一个格林迷宫”在“ Xinjiang MapRecords:河的记录“然而,在 1910 出版了在这个区域的生态学和环境严重由于人的活动的影响被堕落了在期间最近 40 年。渴起来,有 107.4 km^2 的一个区域的湖盆在它的西北的部分形成,是没有植被,盖住 byunconsolidated 淤泥沉积物,并且在北方 Xinjiang 成为了灰尘天气的主要灰尘来源之一,并且有 4.8x10 ~ 6t 的年度数量的灰尘被大风从有 164 天的 Alataw 山脉差距从这个区域吹一年里的发生的大风。为在弄干起来的湖盆在湖区域和有效地控制的风侵蚀改进生态学的埃比纳·莱克的合理的水区域和流入在在弄干起来的湖盆分析在沉积物的小粒的作文之间的当前的生态的问题和关系以后用水平衡方程被估计并且灰尘天气,和最近的年里的生态的效果被监视。为在弄干起来的湖盆在湖区域和有效地控制的风侵蚀改进生态学的 theEbinur 湖的水区域应该至少是 800 km^2,这被考虑,并且湖应该在 7.92x10 ~ 上的再装的表面流量和地下水的年度体积 8 m^3。 | BAO Anming MU Guijin ZHANG Yi FENG Xianwei CHANG Cun YIN Xiaojun | 2006 | Chinese Science Bulletin2006，51，A01： | 4 |
| 5 | Polychlorinated dibenzo-p-dioxins and dibenzofurans in different tissues of the cormorants (Phalacrocorax carbo) from Dongting Lake,China显示文摘Tissue distribution provides important information regarding the pharmacokinetic behavior of pollutants and is invaluable when analyzing the risk posed to avian species by the exposure to such kind of pollutants.In this study,concentrations of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) were determined in muscle,liver,spleen,kidney,stomach,gall bladder,skin,heart,pancreas,intestine and lung tissue extracts of cormorants collected from Dongting Lake,China.Tissue distribution results showed preferential accumulation of PCDD/Fs in both liver and skin.The total concentration of PCDD/Fs ranged from 421 to 5696 pg/g lipid weight.Octachlorinated dibenzo-p-dioxin (OCDD) was the predominant congener in all tissues and contributed between 31% and 82% to all 17 PCDD/Fs in different tissues.The liver/muscle ratios progressively increased with the degree of chlorination of PCDDs,except for OCDD.The relative toxic potential of PCDDs and PCDFs in tissues were calculated using the World Health Organization (WHO) Toxic Equivalency Factors (TEFs) for birds.The concentrations of WHO-toxic equivalent in different tissues ranged between 14.8 and 2021 pg/g lipid weight.These results indicated PCDD/Fs may have been bio-accumulated in cormorant via food-web.Furthermore,when compared with studies reported in the literatures,the PCDD/Fs levels in the cormorant collected from Dongting Lake were still relatively high. | Lirong Gaol Minghui Zheng Bing Zhang Wenbin Liu Ke Xiao Guijin Su Qinghua Zhang | 2011 | Journal of Environmental Sciences2011，23，10： | 4 |
| 6 | Synthesis of a magnetic micro/nano Fe_xO_y-CeO_2 composite and its application for degradation of hexachlorobenzene显示文摘A micrometer-sized nanostructured,magnetic,ball-like FexOy-CeO2 composite was synthesized through an ethylene-glycol mediated process.The synthesized samples were characterized by scanning electron microscopy combined with energydisperse X-ray analysis,transmission electron microscopy and X-ray powder diffraction.In the synthesis system,polyethylene glycol (PEG) and urea were found to play significant roles in the formation of the micrometer-sized spherical architecture of the precursor.The details of morphology and particle size could be changed with the initial concentration of Fe(NO3)3-9H2O and Ce(NO3)3-6H2O as the reactants.The magnetic FexOy-CeO2 composite with a similar morphology was readily obtained by calcination from the precursor.The characterization of transmission electron microscopy showed the calcined ball-like architecture was a highly porous structure consisting of many nanoparticles.Because of the micrometer-sized nanostructure and the multi-components as well as the magnetism,the as-obtained FexOy-CeO2 composite showed better activity and potentially easy recovery for the harmless degradation of hexachlorobenzene (HCB). | JIA ManKe,SU GuiJin,ZHENG MingHui,ZHANG Bing & LIN ShiJing State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China | 2010 | Science China Chemistry2010，53，6： | 3 |
| 7 | Distribution of DDT in a Typical DDT Waste Contaminated Site显示文摘 | Wenbin Liu Changliang Li Minghui Zheng Li Wang Sumei Li Te Ba Guijin Su Lirong Gao Lifei Zhang | 2008 | Bulletin of Environmental Contamination and Toxicology2008，，3： | 1 |
| 8 | Human activity during the late Pleistocene in the Lop Nur region, northwest China: Evidence from a buried stone artifact显示文摘The Lop Nur region, in the east part of Tarim Basin, was an important transportation junction between west and east,north and south Eurasia. However, previous studies on prehistoric human activity have concentrated mostly on the Bronze Age,whereas that during the Stone Age remains largely unresearched. Here, we present a new direct evidence of human activity in the late Pleistocene, recorded on a grinding stone buried in a lacustrine sediment section of the Lop Nur region. The grain size distribution of the sediment section indicates that the site was probably in the center of a lake with weak hydrodynamic environment. Therefore, the stone artifact can only be carried to here by people instead of river and it was never move as soon as left here. Results of radiocarbon dating, the evident stratigraphic relations between the stone artifact and the sedimentary formation, indicate that the human activity could extend to approximately 13 ka BP. Furthermore, the results of starch-grain and use-wear analyses suggest that ancient humans gathered seeds of Triticeae, roots, and tubers and used the grinding stone to simply process selected plant as plant foodstuffs during this period. It implies that the environmental conditions in the river delta of the Lop Nur were inhabitable during the late Pleistocene. | Kangkang LI Xiaoguang QIN Xiaoyan YANG Bing XU Lei ZHANG Guijin MU Dong WEI Chunxue WANG Yong WU Xiaohong TIAN Yongchong LIN Wen LI Jiaqi LIU Yinxin JIAO | 2018 | Science China Earth Sciences2018，61，11： | 1 |
| 9 | Characterizing variations in soil particle size distribution in oasis farmlands—A case study of the Cele Oasis显示文摘 | Dongwei Gui Jiaqiang Lei Fanjiang Zeng Guijin Mu Juntao Zhu Hui Wang Qiang Zhang | 2009 | Mathematical and Computer Modelling2009，，11： | 1 |
| 10 | Study of scientific literacy practical teaching evaluation based on AHP显示文摘 | Zhang Fengrong Xu Zhifeng Chen Zhimin Yin Guijin Huang Fang | 2009 | ISECS International Colloquium on Volume2009，，3： | 1 |
| 11 | ,The inverse emulsion polymerization of acylamide using polystyrene-graft-polyoxyethylene as the stabilizer显示文摘 | Xu Zushun Chen Yuanchun Zhang Guijin | 1999 | J Polym Sci Part A:Polym Chem1999，37，15： | 1 |
| 12 | The rapid determination of γ-aminobutyric acid显示文摘 | Guijin ZHANG Alan W Bown | 1997 | Phvtochemistrty1997，44，6： | 1 |
| 13 | In-situ STM observation of the phase transition of two-dimensional 2,5-distyrylpyrazine nanostructure adsorbed on Au(111) in an electrochemical environment显示文摘The phase transition of 2,5-distyrylpyrazine (DSP) adsorbed on Au(111) substrate was studied as a function of the substrate potential in 0.1 M HClO 4 , using an in situ scanning tunneling microscope (STM). Depending on the applied electric field, DSP formed three distinctly different, two-dimensionally (2D) ordered, supramolecular nanostructures on the Au(111) surface. In the potential range of 0.55 V < E < 0.75 V, the DSP molecules formed a close-packed stripe pattern with the adlayer structure 1 3 . 8 6 When the potential was reduced to 0.45 V < E < 0.55 V, a ridge-like pattern built from dimer subunits was observed, with the adlayer structure 4 5 . 12 4 Further decreasing in the electrode potential to 0.2 V < E < 0.45 V caused the appearance of a herringbone-like pattern consisting of dimer subunits, with the adlayer structure 9 0 . 3 9 The potential-induced phase transitions revealed the structure-determining role of substrate-adsorbate coordination and intermolecular interaction in forming the distinct 2D adlayer motifs. | SU GuiJin HUANG LinYan ZHANG LiXia LU HuiJie | 2013 | Science China Chemistry2013，56，5： | 0 |
| 14 | Synthesis of Block Copolymers of 2-Ethylhexyl Methacrylate, n-Hexyl Methacrylate and Methyl Methacrylate via Anionic Polymerization at Ambient Temperature显示文摘 | Guijin Zou Anna Zheng Dafu wei Zheng Li Ling Su Tongyuan Zhang Xiang Xu Yong Guan | 2018 | Chinese Journal of Chemistry2018，36，10： | 0 |
| 15 | Source apportionment and suitability evaluation of seasonal VOCs contaminants in the soil around a typical refining-chemical integration park in China显示文摘Accurate source apportionment of volatile organic compounds(VOCs)in soil nearby petrochemical industries prevailing globally,is critical for preventing pollution.However,in the process,seasonal effect on contamination pathways and accumulation of soil VOCs is often neglected.Herein,Yanshan Refining-Chemical Integration Park,including a carpet,refining,synthetic rubber,and two synthetic resin zones,was selected for traceability.Season variations resulted in a gradual decrease of 31 VOCs in soil from winter to summer.A method of dry deposition resistance model coupling partitioning coefficient model was created,revealing that dry deposition by gas phase was the primary pathway for VOCs to enter soil in winter and spring,with 100 times higher fux than by particle phase.Source profiles for five zones were built by gas sampling with distinct substance indicators screened,which were used for positive matrix factorization factors determination.Contributions of the five zones were 14.9%,20.8%,13.6%,22.1%,and 28.6%in winter and 33.4%,12.5%,10.7%,24.9%,and 18.5%in spring,respectively.The variation in the soil sorption capacity of VOCs causes inter-seasonal differences in contribution.The better correlation between dry deposition capacity and soil storage of VOCs made root mean square and mean absolute errors decrease averagely by 8.8%and 5.5%in winter compared to spring.This study provides new perspectives and methods for the source apportionment of soil VOCs contamination in industrial sites. | Xu Zhao Jing Meng Qianqian Li Guijin Su Qifan Zhang Bin Shi Lingwen Dai Yong Yu | 2024 | Journal of Environmental Sciences2024，，3： | 0 |
| 16 | The main strategies for soil pollution apportionment:A review of the numerical methods显示文摘Nowadays,a large number of compounds with different physical and chemical properties have been determined in soil.Environmental behaviors and source identification of pollutants in soil are the foundation of soil pollution control.Identification and quantitative analysis of potential pollution sources are the prerequisites for its prevention and control.Many efforts have made to develop methods for identifying the sources of soil pollutants.These efforts have involved the measurement of source and receptor parameters and the analysis of their relationships via numerical statistics methods.We have comprehensively reviewed the progress made in the development of source apportionment methodologies to date and present our synthesis.The numerical methods,such as spatial geostatistics analysis,receptor models,and machine learning methods are addressed in depth.In most cases,however,the effectiveness of any single approach for source apportionment remains limited.Combining multiple methods to address soil quality problems can reduce uncertainty about the sources of soil pollution.This review also constructively highlights the key strategies of combining mathematical models with the assessment of chemical profiles to provide more accurate source attribution.This review intends to provide a comprehensive summary of source apportionment methodologies to help promote further development. | Bin Shi Jing Meng TieyuWang Qianqian Li Qifan Zhang Guijin Su | 2024 | Journal of Environmental Sciences2024，，2： | 0 |
| 17 | The effect of lead on the activity of carbon-fixation enzymes in Potamogeton pectinatus显示文摘 | Qing LIN Xinying ZHANG Guijin LU | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 0 |
| 18 | Myo-inositol mediates reactive oxygen species-induced programmed cell death via salicylic acid-dependent and ethylene-dependent pathways in apple显示文摘As a versatile compound,myo-inositol plays vital roles in plant biochemistry and physiology.We previously showed that exogenous application of myo-inositol had a positive role in salinity tolerance in Malus hupehensis Rehd.In this study,we used MdMIPS(the rate-limiting gene of myo-inositol biosynthesis)transgenic apple lines to gain new insights into the physiological role of myo-inositol in apple.Decreasing myo-inositol biosynthesis in apple lines by RNA silencing of MdMIPS1/2 led to extensive programmed cell death,which manifested as necrosis of both the leaves and roots and,ultimately,plant death.Necrosis was directly caused by the excessive accumulation of reactive oxygen species,which may be closely associated with the cell wall polysaccharide-mediated increase in salicylic acid and a compromised antioxidant system,and this process was enhanced by an increase in ethylene production.In addition,a high accumulation of sorbitol promoted necrosis.This synergetic interplay between salicylic acid and ethylene was further supported by the fact that increased myo-inositol accumulation significantly delayed leaf senescence in MdMIPS1-overexpressing apple lines.Taken together,our results indicated that apple myo-inositol regulates reactive oxygen species-induced programmed cell death through salicylic acid-dependent and ethylene-dependent pathways. | Lingyu Hu Kun Zhou Guijin Ren Shulin Yang Yuan Liu Zhijun Zhang Yangtiansu Li Xiaoqing Gong Fengwang Ma | 2020 | Horticulture Research2020，7，1： | 0 |
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