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| 1 | Risk assessment of heavy metals in soils and vegetables around nonferrous metals mining and smelting sites,Baiyin,China显示文摘A field survey was conducted to investigate the metal and arsenic contamination in soils and vegetables on four villages (Shuichuan (SCH), Beiwan (BWA), Dongwan (DWA) and Wufe (WFE)) located along, Baiyin, China, and to evaluate the possible health risks to local population through foodchain. Results show that the most significantly contaminated soils occurred upstream at SCH where Cd, Cu and As concentrations exceeded maximum allowable concentrations for Chinese agricultural soil. Further downstream the degree of contamination semi-systematically decreased in concentrations of metal. Generally, the leafy vegetables were more heavily contaminated than non-leafy vegetables. Chinese cabbage is the most severely contaminated, the concentrations of Cd exceeded the maximum permit levels (0.05 mg/kg) by 4.5 times. Bio-accumulate factor also shows that an entry of Cd to food chain plants is the greatest potential. Furthermore, the estimated daily intake amounts of the considered toxic elements (Cd, Pb and Cu) from the vegetables grown at SCH and BWA and DWA have exceeded the recommended dietary allowance levels. Thus, the vegetables grown in three villages above, which affected by Baiyin mining and smelting have a health hazard for human consumption. | LI Yu WANG Yan-bin GOU Xin SU Yi-bing WANG Gang | 2006 | Journal of Environmental Sciences2006，18，6： | 84 |
| 2 | Pachytene piRNAs instruct massive mRNA elimination during late spermiogenesis显示文摘在哺乳动物的精子发生被 piRNA 表示的二个波浪描绘:一个人对应于负责的经典 piRNAs 因为 silencing retrotransponsons 和第二个波浪主要在 pachytene spermatocytes 从 nontransposon intergenic 区域被导出,但是这些 pachytene piRNAs 的功能大部分是未知的。这里,我们在在老鼠伸长指示巨大的 mRNA 消除报导 pachytene piRNAs 的参与 spermatids (ES ) 。我们证明包含鼠科的 PIWI (MIWI ) 和 deadenylase CAF1 的导致 piRNA 的 silencing 建筑群(pi-RISC ) 有选择地在 ES 被装配,它负责经由在体的房间类似于 miRNAs 的行动的机制导致 mRNA deadenylation 和腐烂。如此的一个高度安排的节目看起来充分利用 pachytene piRNAs 的能力从 nontransposon intergenic 区域导出的多样化的指向的庞大的全部剧目。这些调查结果建议 pachytene piRNAs 负责为精子生产作准备,从 ES 使广阔细胞的节目失去活性。 | Lan-Tao Gou Peng Dai Jian-Hua Yang Yuanchao Xue Yun-Ping Hu Yu Zhou Jun-Yan Kang Xin Wang Hairi Li Min-Min Hua Shuang Zhao Si-Da Hu Li-Gang Wu Hui-Juan Shi Yong Li Xiang-Dong Fu Liang-Hu Qu En-Duo Wang Mo-Fang Liu | 2014 | Cell Research2014，24，6： | 39 |
| 3 | Heavy metal contamination and source in arid agricultural soil in central Gansu Province,China显示文摘铜( Cu )的集中,铅( Pb ),铬( Cr ),水银( Hg ),和砷(作为)在在 Daba 村庄, Shajiawuan 村庄, Gangou 村庄和 Sifangwu 村庄里收集的干旱农业、灌溉的农业土壤被测量,在中央 Gansu 省定位了,除了 Hg 和 Pb 的 China.Concentrations 比在在选择干旱农业 soils.Pb 集中的灰石灰性土壤的背景价值由结果显示出的72.46% .These 在中国超过干旱农业土壤的阀值低有有 Pb 的确实严肃的污染,为在 Daba 村庄里的灌溉农业土壤的另外的选择金属的一个细微污染问题。种量分析(PCA ) 被用来估计土壤数据,使用有凯撒正规化的 varimax 旋转。结果证明灌溉因素,农业因素和人为的因素都贡献了在选择化学特性之间的关系。Cu 的累积的主要因素, Pb, Cr, Hg 并且这是石版印刷在干旱农业区域的逻辑因素。有 Cu 的起源的惹人注目的不同, Pb, Cr, Hg 并且作为在在 irrigate 农业和干旱农业之间的农业土壤。 | LI Yu GOU Xin WANG Gang ZHANG Qiang SU Qiong XIAO Guoju | 2008 | Journal of Environmental Sciences2008，20，5： | 27 |
| 4 | The study on the safety and efficacy of amnion graft for preventing the recurrence of moderate to severe intrauterine adhesions显示文摘Transcervical resection of adhesion(TCRA)is the standard treatment for the intrauterine adhesions,but the recurrence of adhesions is a tough problem for the gynecologist.In addition,the therapeutic strategy after TCRA about prevention of recurrence remains controversial especially for the patients with moderate to severe intrauterine adhesions(IUAs).Hence,we designed this study to explore the safety and efficacy of fresh amnion grafts for preventing the recurrence after TCRA for patients with moderate to severe IUAs.One hundred patients with moderate to severe IUAs who presented with a history of hypomenorrhea,amenorrhea and infertility were included in the study from January 2015 to December 2017.Patients were divided into amnion group(52 patients)and chitosan group(48 patients).Fresh amnion grafts or intrauterine injections of chitosan were administered after TCRA.Transvaginal ultrasonography(TVUS)and hysteroscopy were performed at the first and third month after the operation.The surgical procedures for all patients were completed successfully without relevant complications.In amnion group,8 patients exhibited relapse in the first month and 2 patients in three months after surgery;in chitosan group,23 women exhibited relapse in the first month and 18 patients in three months after surgery.Statistical analysis revealed that the recurrence rate of adhesion in amnion group was significantly lower than those of chitosan group in the first and three months after surgery(P1=0.000,P2=0.000).After TCRA,fresh amnion graft plays a significant role in preventing further adhesions than injections of chitosan. | Changjiang Li Aiqi Cai Congcong Sun Benyuan Wu Xinpei Chen Yanhua Mao Yingfeng Zhang Yating Gou Jie Yu Yuhan Wang Huanhuan Yu Jia Wang | 2020 | Genes & Diseases2020，7，2： | 11 |
| 5 | Study on shallow groundwater information extraction technology based on multi-spectral data and spatial data显示文摘Aimed at solving the difficulties,such as low efficiency and limited exploration range encountered in finding groundwater with the traditional methods,a new method was presented by using remote sensing technology in this paper.Based on multi-spectral data(ETM data) and spatial data(SRTM data),a forecasting model was built to produce a probability rating map for finding shallow groundwater in the arid and semi-arid areas.According to investigations,a conclusion is drawn that the results of the model are satisfied,which have been testified by the later geophysical exploration and drilling.Thus,the model can serve as a guide for finding groundwater in the arid and semi-arid regions. | YU DeHao DENG ZhengDong LONG Fan GUAN HongJun WANG DaQing GOU YiZheng | 2009 | Science China(Technological Sciences)2009，52，5： | 9 |
| 6 | Effect of air bubble size on cavitation erosion reduction显示文摘Over the past 60 years, the air concentration in water has been considered as a control index of cavitation erosion reduction and widely used in the designs of hydraulic structures. However, the mechanism of air entrainment against cavitation erosion has been paid good attention to. In the present work, the effect of air bubble size on cavitation erosion reduction was experimentally investigated. A device with micron-scale orifice diameters(10, 20 and 50 μm in size) was specially designed to introduce air bubbles into water. The experiments about the effect of air bubble size were conducted by means of a vibratory apparatus, including the behavior of formation and movement for single air bubble, the characteristics of cavitation erosion reduction at different air entrainment conditions. The findings demonstrate that high air concentration has significant effects on cavitation erosion reduction.But, a notable problem was that the size of air bubbles is of outstanding effect on cavitation erosion reduction. Small air bubbles support to alleviate cavitation erosion, even at same air concentration. | WU JianHua SU KunPeng WANG Yu GOU WenJuan | 2017 | Science China(Technological Sciences)2017，60，4： | 8 |
| 7 | Mechanical and fatigue properties of self-piercing riveted joints in high-strength steel and aluminium alloy显示文摘Static tensile and fatigue tests were performed on shear and tensile self-piercing riveted aluminium-steel structures to evaluate their mechanical and fatigue properties. The influences of the thickness and the strength of the highstrength steel on mechanical and fatigue performances were investigated based on the tensile and F-N curves of the joints. The results show that mechanical and fatigue properties of the shear self-piercing riveted joints are much better than those of the tensile self-piercing riveted joints. Mechanical and fatigue performances of the two joints were significantly influenced by the thickness and strength of the steel sheet,and were markedly improved when the thickness of steel sheet increased. The steel strength showed significantly different effects on shear and tensile riveted structures,i. e.,when the steel strength increased,the strength of the shear structure greatly increased while the tensile structure just had a slight increase in the strength. Fatigue failure generally occurred in the sheet materials and the fatigue crack location changed with increasing the sheet thickness and the sheet strength. | Chun-yu Zhang Rui-bin Gou Min Yu Ya-jing Zhang Yin-hu Qiao Shu-ping Fang | 2017 | Journal of Iron and Steel Research(International)2017，24，2： | 6 |
| 8 | A sequence of 28S rRNA-derived small RNAs is enriched in mature sperm and various somatic tissues and possibly associates with inflammation显示文摘 | Chu, Chen Yu, Lu Wu, Bin Ma, Li Gou, Lan-Tao He, Miao Guo, Yunli Li, Zhi-Tong Gao, Wei Shi, Huijuan Liu, Mo-Fang Wang, Hongyan Chen, Charlie Degui Drevet, Joel R. Zhou, Yuchuan Zhang, Yonglian | 2017 | Journal of Molecular Cell Biology2017，9，3： | 6 |
| 9 | Generation of electricity from CO_2 mineralization: Principle and realization显示文摘Current CO2 reduction and utilization technologies suffer from high energy consuming. Thus, an energy favourable route is in urgent demanding. CO2 mineralization is theoretically an energy releasing process for CO2 reduction and utilization, but an approach to recovery this energy has so far remained elusive. For the first time, here we proposed the principle of harvesting electrical energy directly from CO2 mineralization, and realized an energy output strategy for CO2 utilization and reduction via a CO2-mineralization fuel cell(CMFC) system. In this system CO2 and industrial alkaline wastes were used as feedstock, and industrial valuable Na HCO3 was produced concomitantly during the electricity generation. The highest power density of this system reached 5.5 W/m2, higher than many microbial fuel cells. The maximum open circuit voltage reached 0.452 V. Moreover, this system was demonstrated viable to low concentration CO2(10%) and other carbonation process. Thus, the existing of an energy-generating and environmentally friendly strategy to utilize CO2 as a supplement to the current scenario of CO2 emission control has been demonstrated. | XIE He Ping WANG Yu Fei HE Yang GOU Ma Ling LIU Tao WANG Jin Long TANG Liang JIANG Wen ZHANG Ru XIE Ling Zhi LIANG Bin | 2014 | Science China(Technological Sciences)2014，57，12： | 6 |
| 10 | Combinatorial effects of conception and governor vessel electroacu-puncture and human umbilical cord blood-derived mesenchymal stem cells on pathomorphologic lesion and cellular apoptosis in rats with cerebral ischemia/reperfusion显示文摘OBJECTIVE: To investigate the combinatorial effects of conception and governor vessel electroacupuncture(EA) and human umbilical cord blood-derived mesenchymal stem cells(HUCB-MSCs) on pathomorphologic lesion and cellular apoptosis in rats with cerebral ischemia/reperfusion. METHODS: With the HUCB-MSCs isolated, cultured and identified and the models of cerebral ischemia-reperfusion established, the HUCB-MSCs of passage three were intracranially transplanted and the EA at conception and governor vessels was applied. The pathomorphologic lesion by hematoxylin-eosin staining and the cellular apoptosis by terminal deoxynucleotidyl transferase-mediated nick-end labeling method around the ischemic focus were observed. RESULTS: The cultured adherent HUCB-MSCs exhibited a spindle shape and expressed MSC-specific markers, with the cell purity and proliferation rate significantly increasing after the primary passage. HE staining showed that there were no pathological changes observed in the sham surgery group. However, in the PBS transplantation group, degeneration and necrosis of a great number of nerve cells were seen. In both the HUCB-MSCs transplantation group and the HUCB-MSCs transplantation + EA group, reparative changes of the pathomorphism of the tissue were found. Both combination treatment and simple MSCs treatment were able to improve the pathomorphorlogic lesion following cerebral ischemia and reduce the abnormal TUNEL-positive numbers, with former better than latter. CONCLUSION: HUCB-MSCs improve pathological lesions and inhibit the cellular apoptosis around the cerebral ischemic area. EA at conception and governor vessels also improve pathological lesion and inhibit the cellular apoptosis in rats treated with HUCB-MSCs transplantation, which effects were superior to that of simple HUCB-MSCs transplantation. | Zhuoxin Yang Pengdian Chen Haibo Yu Wenshu Luo Min Pi Yonggang Wu Ling Wang Fuxia Yang Yanhua Gou | 2013 | Journal of Traditional Chinese Medicine2013，33，6： | 5 |
| 11 | Risk factors for mortality at beginning of maintenance hemodialysis显示文摘Hemodialysis(HD)is a crucial renal replacement therapy for patients with end-stage renal disease.Despite improvements in dialysis technology,mortality for maintenance HD(MHD)patients remains high.To improve the quality of life among MHD patients,it is necessary to examine the risk factors associated with mortality.In this study,we retrospectively analyzed patients5 conditions at the beginning of dialysis and assessed the risk factors for mortality in MHD patients treated at the Center for Hemodialysis in West China Hospital,Sichuan University,China.The aim of this study was to identify significant risk factors to guide the treatment of MHD patients and targeted early preventions to improve prognosis. | Shao-Bin Yu Huai-Hong Yuan Stephen Salerno Shen-Ju Gou Wen-Wen Chen Hong-Liu Yang Yi Li Ping Fu | 2020 | Chinese Medical Journal2020，，7： | 5 |
| 12 | Soil mineral nitrogen and yield-scaled soil N2O emissions lowered by reducing nitrogen application and intercropping with soybean for sweet maize production in southern China显示文摘The increasing demand for fresh sweet maize(Zea mays L.saccharata)in southern China has prioritized the need to find solutions to the environmental pollution caused by its continuous production and high inputs of chemical nitrogen fertilizers.A promising method for improving crop production and environmental conditions is to intercrop sweet maize with legumes.Here,a three-year field experiment was conducted to assess the influence of four different cropping systems(sole sweet maize(SS),sole soybean(SB),two rows sweet maize-three rows soybean(S2B3)intercropping,and two rows sweet maize-four rows soybean(S2B4)intercropping),together with two rates of N fertilizer application(300 and 360 kg N ha^(–1))on grain yield,residual soil mineral N,and soil N_2O emissions in southern China.Results showed that in most case,intercropping achieved yield advantages(total land equivalent ratio(TLER=0.87–1.25)was above one).Moreover,intercropping resulted in 39.8%less soil mineral N than SS at the time of crop harvest,averaged over six seasons(spring and autumn in each of the three years of the field experiment).Generally,intercropping and reduced-N application(300 kg N ha^(–1))produced lower cumulative soil N_2O and yield-scaled soil N_2O emissions than SS and conventional-N application(360 kg N ha^(–1)),respectively.S2B4 intercropping with reduced-N rate(300 kg N ha^(–1))showed the lowest cumulative soil N_2O(mean value=0.61 kg ha^(–1))and yield-scaled soil N_2O(mean value=0.04 kg t^(–1))emissions.Overall,intercropping with reduced-N rate maintained sweet maize production,while also reducing environmental impacts.The system of S2B4 intercropping with reduced-N rate may be the most sustainable and environmentally friendly cropping system. | TANG Yi-ling YU Ling-ling GUAN Ao-mei ZHOU Xian-yu WANG Zhi-guo GOU Yong-gang WANG Jian-wu | 2017 | Journal of Integrative Agriculture2017，16，11： | 4 |
| 13 | Estimating purple-soil moisture content using Vis-NIR spectroscopy显示文摘Soil moisture is essential for plant growth in terrestrial ecosystems.This study investigated the visible-near infrared(Vis-NIR)spectra of three subgroups of purple soils(calcareous,neutral,and acidic)from western Chongqing,China,containing different water contents.The relationship between soil moisture and spectral reflectivity(R)was analyzed using four spectral transformations,and estimation models were established for estimating the soil moisture content(SMC)of purple soil based on stepwise multiple linear regression(SMLR)and partial least squares regression(PLSR).We found that soil spectra were similar for different moisture contents,with reflectivity decreasing with increasing moisture content and following the order neutral>calcareous>acidic purple soil(at constant moisture content).Three of the four spectral transformations can highlight spectral sensitivity to SMC and significantly improve the correlation between the reflectance spectra and SMC.SMLR and PLSRmethods provide similar prediction accuracy.The PLSR-based model using a first-order reflectivity differential(R?)is more effective for estimating the SMC,and gave coefficient of determination(v2),root mean square errors of validation(RMSEV),and ratio of performance to inter-quartile distance(RPIQ)values of 0.946,1.347,and 6.328,respectively,for the calcareous purple soil,and 0.944,1.818,and 6.569,respectively,for the acidic purple soil.For neutral purple soil,the best prediction was obtained using the SMLR method with R?transformation,yieldingv2,RMSEV and RPIQ values of 0.973,0.888 and 8.791,respectively.In general,PLSR is more suitable than SMLR for estimating the SMC of purple soil. | GOU Yu WEI Jie LI Jin-lin HAN Chen TU Qing-yan LIU Chun-hong | 2020 | Journal of Mountain Science2020，17，9： | 4 |
| 14 | Total Energy Expenditure of 16 Chinese Young Men Measured by the Doubly Labeled Water Method显示文摘Objective Doubly labeled water (DLW) method is the gold standard for measuring total energy expenditure (TEE). We used this method to measure TEE in Chinese young men. Methods Sixteen healthy young men age 23±1 years with body mass index 22.0±1.4 kg/m 2 were recruited. TEE was measured by the DLW method, and basal energy expenditure (BEE) was determined by indirect calorimetry. We also conducted 24-h activity, energy balance and factorial approach to estimate energy requirements of the subjects. Results TEE of subjects by DLW method was 9.45±0.57 MJ/day (2258±180 kcal/day). The 24-h activity was 10.80±0.33 MJ/day (2582±136 kcal/day). The energy requirement, derived from energy balance observations, was 9.93±1.32 MJ/day (2373±315 kcal/day). The BEE of 6.65±0.28 MJ/day (1589±67 kcal/day), calculated by the adjusted Schofield equation, was significantly higher (P<0.001) than that measured by indirect calorimetry, 5.99±0.66 MJ/day (1433±158 kcal/day). The TEE derived from the factorial approach was 10.31±0.43 MJ/day (2463±104 kcal/day). Conclusion The TEE of Chinese young men measured by the DLW method was about 10% lower than the current recommended nutrient intake (RNI), suggesting that the RNI for Chinese men maybe overestimated. Further studies are warranted to determine the value of the estimated energy requirement. | ZHUO Qin SUN Rui GOU Ling Yan PIAO Jian Hua LIU Jian Min TIAN Yuan ZHANG Yu Hui YANG Xiao Guang | 2013 | Biomedical and Environmental Sciences2013，26，6： | 4 |
| 15 | Application of regional citrate anticoagulation in patients at high risk of bleeding during intermittent hemodialysis:a prospective multicenter randomized controlled trial显示文摘Objective:Safe and effective anticoagulation is essential for hemodialysis patients who are at high risk of bleeding.The purpose of this trial is to evaluate the effectiveness and safety of two-stage regional citrate anticoagulation(RCA)combined with sequential anticoagulation and standard calcium-containing dialysate in intermittent hemodialysis(IHD)treatment.Methods:Patients at high risk of bleeding who underwent IHD from September 2019 to May 2021 were prospectively enrolled in 13 blood purification centers of nephrology departments,and were randomly divided into RCA group and saline flushing group.In the RCA group,0.04 g/mL sodium citrate was infused from the start of the dialysis line during blood draining and at the venous expansion chamber.The sodium citrate was stopped after 3 h of dialysis,which was changed to sequential dialysis without anticoagulant.The hazard ratios for coagulation were according to baseline.Results:A total of 159 patients and 208 sessions were enrolled,including RCA group(80 patients,110 sessions)and saline flushing group(79 patients,98 sessions).The incidence of severe coagulation events of extracorporeal circulation in the RCA group was significantly lower than that in the saline flushing group(3.64%vs.20.41%,P<0.001).The survival time of the filter pipeline in the RCA group was significantly longer than that in the saline flushing group((238.34±9.33)min vs.(221.73±34.10)min,P<0.001).The urea clearance index(Kt/V)in the RCA group was similar to that in the saline flushing group with no statistically significant difference(1.12±0.34 vs.1.08±0.34,P=0.41).Conclusions:Compared with saline flushing,the two-stage RCA combined with a sequential anticoagulation strategy significantly reduced extracorporeal circulation clotting events and prolonged the dialysis time without serious adverse events. | Xiaoyan TANG Dezheng CHEN Ling ZHANG Ping FU Yanxia CHEN Zhou XIAO Xiangcheng XIAO Weisheng PENG Li CHENG Yanmin ZHANG Hongbo LI Kehui LI Bizhen GOU Xin WU Qian YU Lijun JIAN Zaizhi ZHU Yu WEN Cheng LIU Hen XUE Hongyu ZHANG Xin HE Bin YAN Liping ZHONG Bin HUANG Mingying MAO | 2022 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022，23，11： | 4 |
| 16 | Pose-robust feature learning for facial expression recognition显示文摘 | Feifei ZHANG Yongbin YU Qirong MAO Jianping GOU Yongzhao ZHAN | 2016 | Frontiers of Computer Science2016，10，5： | 3 |
| 17 | A NEW FLAVONE C-GLYCOSIDE FROM SCUTELLARIA BAICALENSIS显示文摘ANEWFLAVONEC-GLYCOSIDEFROMSCUTELLARIABAICALENSIS￥YongYuZHANG;XianLI;YunZhenGOU(ShenyangPharmaceuticalUniversity,Shenyang11001... | Yong Yu ZHANG Xian LI Yun Zhen GOU(Shenyang Pharmaceutical University, Shenyang 110015)Yoshihiro HARIGAYA, Masayuki ONDASchool of Pharmaceutical Sciences, Kitasato University, Tokyo 108 ,JapanKadsunort H^SHIMO’rO, yukinobu iK EYA, Minoru OKAD^, cacao M^ | 1994 | Chinese Chemical Letters1994，5，10： | 3 |
| 18 | Research on the panel adjustment method of an active main reflector for a large radio telescope显示文摘The surface accuracy of a large parabolic antenna is an important indicator to evaluate the quality of the antenna.It not only directly affects the antenna’s aperture efficiency,thereby determining the shortest wavelength that the antenna can work,but also affects the main lobe width and side lobe structure of the antenna pattern.Microwave holography is an important method for parabolic antenna profile detection.In this article we adopt a new algorithm to adjust the panels for the large radio telescope with an active main reflector through the TM65 m antenna’s aperture phase profile.The panels of the TM65 m radio telescope is in a radial pattern with 14 rings.Each corner of the panel is fixed on the screw of the actuator to move up and down,and the adjacent corners of the four panels share an actuator.We use the method of plane fitting to calculate the adjustment value of every panel’s corner.But one actuator,which simultaneously controls the common corner of the adjacent panels,will have different adjustment values according to the different plane fitting equation based on adjacent panels.In this paper,the adjustment value of the adjacent panels’crosspoints are constrained to be equal to the constraint condition to calculate each actuator’s adjustment value of the TM65 m radio telescope.Through multiple adjustments and application of the new algorithms,the accuracy of the TM65 m antenna reflector profile has been improved from the original 0.28 mm to the current 0.19 mm. | Zheng-Xiong Sun Jin-Qing Wang Lin-Feng Yu Wei Gou Guang-Li Wang | 2021 | Research in Astronomy and Astrophysics2021，21，2： | 3 |
| 19 | Landing site topographic mapping and rover localization for Chang’e-4 mission显示文摘This paper presents the techniques and results of landing-site topographic mapping and rover localization using orbital,descent and rover images in the Chang’e-4 mission.High-resolution maps of the landing site are generated from orbital and descent images.Local digital elevation models and digital orthophoto maps with 0.02 m resolution are generated at each waypoint.The location of the lander is determined as(177.588?E,45.457?S)using festure-matching techniques.The cross-site visual localization method is routinely used to localize the rover at each waypoint to reduce error accumulation from wheel slippage and IMU drift in dead reckoning.After the first five lunar days,the rover travels 186.66 m from the lander,according to the cross-site visual localization.The developed methods and results have been directly utilized to support the mission’s operations.The maps and localization information are also valuable for supporting multiple scientific explorations of the landing site. | Zhaoqin LIU Kaichang DI Jian LI Jianfeng XIE Xiaofeng CUI Luhua XI Wenhui WAN Man PENG Bin LIU Yexin WANG Sheng GOU Zongyu YUE Tianyi YU Lichun LI Jia WANG Chuankai LIU Xin XIN Mengna JIA Zheng BO Jia LIU Runzhi WANG Shengli NIU Kuan ZHANG Yi YOU Bing LIU Jiangang LIU | 2020 | Science China(Information Sciences)2020，63，4： | 3 |
| 20 | In vitro pancreas duodenal homeobox-1 enhances the differentiation of pancreatic ductal epithelial cells into insulin-producing cells显示文摘AIM: To observe whether pancreatic and duodenal homeobox factor-1 enhances the differentiation of pancreatic ductal epithelial cells into insulin-producing cells in vitro. METHODS: Rat pancreatic tissue was submitted to digestion by collegenase, ductal epithelial cells were separated by density gradient centrifugation and then cultured in RPMI1640 medium with 10% fetal bovine serum. After 3-5 passages, the cells were incubated in a six-well plate for 24 h before transfection of recombination plasmid XlHbox8VP16. Lightcycler quantitative real-time RT-PCR was used to detect the expression of PDX-1 and insulin mRNA in pancreatic epithelial cells. The expression of PDX-1 and insulin protein was analyzed by Western blotting. Insulin secretion was detected by radioimmunoassay. Insulin- producing cells were detected by dithizone-staining. RESULTS: XlHbox8 mRNA was expressed in pancreatic ductal epithelial cells. PDX-1 and insulin mRNA as well as PDX-1 and insulin protein were signifi cantly increased in the transfected group. The production and insulin secretion of insulin-producing cells differentiated from pancreatic ductal epithelial cells were higher than those of the untransfected cells in vitro with a significant difference (1.32 ± 0.43 vs 3.48 ± 0.81, P < 0.01 at 5.6 mmol/L; 4.86 ± 1.15 vs 10.25 ± 1.32, P < 0.01 at 16.7 mmol/L). CONCLUSION: PDX-1 can differentiate rat pancreaticductal epithelial cells into insulin-producing cells in vitro. In vitro PDX-1 transfection is a valuable strategy for increasing the source of insulin-producing cells. | Tao Liu Chun-You Wang Feng Yu Shan-Miao Gou He-Shui Wu Jiong-Xin Xiong Feng Zhou | 2007 | World Journal of Gastroenterology2007，13，39： | 3 |
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