维普中文期刊产品整合服务
93篇 您的检索式:作者名="Chai Bin"
    题名 作者 年代 出处 被引量
1Structure reveals that BAK1 as a co-receptor recognizes the BRIl-bound brassinolide显示文摘Yadong Sun Zhlfu Han Jiao Tang Zehan Hu Chengliang Chai Bin Zhou Jijie Chai 2013Cell Research2013,23,11:24
2A radiomic nomogram based on an apparent diffusion coefficient map for differential diagnosis of suspicious breast findings显示文摘Objective: To develop and validate a radiomic nomogram based on an apparent diffusion coefficient(ADC) map for differentiating benign and malignant lesions in suspicious breast findings classified as Breast Imaging Reporting and Data System(BI-RADS) category 4 on breast magnetic resonance imaging(MRI).Methods: Eighty-eight patients diagnosed with BI-RADS 4 findings on breast MRI in the First Affiliated Hospital of China Medical University from December 2014 to December 2015 were retrospectively analyzed in this study. Sixty-three were randomized electronically to establish forecasting models, and the other 25 were used for validation. Radiomic features based on the ADC map were generated automatically by Artificial Intelligence Kit software(A.K. software; GE Healthcare, China). Feature reduction was conducted using the Mann-Whitney test and Spearman correlation after pre-treatment. A prediction model of ADC radiomics was established by logistic linear regression and cross-validation. A nomogram was established based on ADC radiomic features,pharmacokinetics and clinical features, including the morphology and ADC value for breast BI-RADS 4 lesions on MRI.Results: A total of 396 radiomic features were extracted automatically by the A.K. software. Five features were selected after pre-processing, Mann-Whitney tests and Spearman correlation analysis. The area under the ROC curve of the prediction model comprising ADC radiomic features was 0.79 when the cutoff value was 0.45, and the accuracy, sensitivity and specificity were 80.0%, 0.813 and 0.778, respectively. A visualized differential nomogram based on the radiomic score, pharmacokinetics and clinical features was established. The decision curve showed good consistency.Conclusions: ADC radiomic features could provide an important reference for differential diagnosis between benign and malignant lesions in suspicious BI-RADS 4 lesions. The visualized nomogram based on ADC radiomic features, pharmacokinetics and clinical features may have good prospects for clinical application.Bin Hu Ke Xu Zheng Zhang Ruimei Chai Shu Li Lina Zhang 2018Chinese Journal of Cancer Research2018,30,4:15
3Multidrug-resistant Tuberculosis Burden among the New Tuberculosis Patients in Zhejiang Province: An Observational Study, 2009-2013显示文摘Ying Peng Song-Hua Chen Le Zhang Bin Chen Ming-Wu Zhang Tie-Niu He Fei Wang Cheng-Liang Chai Lin Zhou Yu Zhang Xiao-Meng Wang Zhongwei Jia 2017Chinese Medical Journal2017,,17:13
4Comparison of microstructures and mechanical properties of composite extruded AZ31 sheets显示文摘The microstructures and mechanical properties of the composite extruded AZ31/AZ31 and AZ31/4047 Al sheets were investigated and made a comparison to the conventional extruded AZ31 sheet.Owing to the introduced intense shear deformation at the interface during the composite extrusion,grain refinement and tilted texture were detected in AZ31 layers of the AZ31/AZ31 and AZ31/4047 Al sheets,while the conventional extruded AZ31 sheet exhibited a relative coarse,inhomogeneous microstructure and strong basal texture.The compressiontension yield ratio was increased gradually from the AZ31 to the AZ31/AZ31 and AZ31/4047 Al sheets.Besides,the AZ31/4047 Al sheet could successfully accomplish the whole bending forming process at room temperature,while the AZ31 and AZ31/AZ31 sheets were both bend-formed to failure with significant cracks in the outer tensile region under the identical bending parameters.Moreover,under the same bending strain,both the outward offset degree of strain neutral layer and the sheet thickening were more serious in the AZ31/4047 Al composite sheet than those of the AZ31 and AZ31/AZ31 sheets.The foremost reason was the quite wide gap of material properties between Mg alloy AZ31 layer(tensile loading in the outer region)and Al 4047 layer(compressive loading in the inner region).Yanfu Chai Yan Song Bin Jiang Jie Fu Zhongtao Jiang Qingshan Yang Haoran Sheng Guangsheng Huang Dingfei Zhang Fusheng Pan 2019Journal of Magnesium and Alloys2019,7,4:11
5Characterization of refuse landfill leachates of three different stages in landfill stabilization process显示文摘Landfill leachates with different ages(mature leachate,11 years;semi-mature leachate,5 years;fresh leachate,under operation) were collected from Laogang Refuse Landfill,Shanghai to characterize the colloid size distribution and variations of leachate.These leachates were separated using micro-filtration and ultra-filtration into specific size fractions,i.e.,suspended particles(SP)(>1.2μm) ,coarse colloids(CC)(1.2-0.45μm) ,fine colloids(FC)(0.45μm,5 kDa/1 kDa molecular weight(MW) ) ,and dissolved organic matters(DM,<5 kDa/1 kDa MW) .The specific colloids in each size fraction were quantified and characterized through chemical oxygen demands(COD) ,total solid(TS) ,pH,NH4+-N,total organic carbon(TOC) and fixed solid(FS) .It was found that COD,NH4+-N and TS in leachate decreased significantly over ages,while pH increased.The dissolved fractions(<5 kDa/1 kDa) dominated(over 50%) in three leachates in terms of COD,and the organic matter content in dissolved fraction of leachates decreased and the inorganic matter increased as the disposal time extended,with the TOC/COD ratio 30%-7%.Dissolved fractions decreased from 82%to 40%in terms of TOC as the disposal time extended,suggested that the organic matter remained in leachate would form into middle molecular weight substances during the degradation process.LOU Ziyang DONG Bin CHAI Xiaoli SONG Yu ZHAO Youcai ZHU Nanwen 2009Journal of Environmental Sciences2009,21,9:9
6Co调变MoS2催化剂的作用本质及其FCC汽油选择性加氢脱硫机理显示文摘采用含硫前驱体四硫代钼酸铵直接构建MoS2催化剂,通过调变Co/Mo原子比深入认识Co调变MoS2催化剂的作用本质及其FCC汽油选择性加氢脱硫机理。借助XRD、HRTEM、XPS、H2-TPR和Py-FTIR表征发现,Co/Mo原子比能够影响催化剂的活性相微观结构组成,从而影响催化剂的加氢脱硫活性和选择性。当Co/Mo(atomicratio)<0.2时,助剂Co原子倾向于占据MoS2相的边角位而形成CoMoS活性相,明显提高了催化剂的加氢脱硫活性;当0.20.6时,过量的Co会形成大颗粒的Co9S8相,阻碍硫化物和烯烃与催化剂活性中心的接触,从而降低催化剂的活性和选择性。LIU Bin LIU Lei CHAI Yong-ming ZHAO Jin-chong LIU Chen-guang 刘宾 刘蕾 柴永明 赵晋翀 刘晨光 2018燃料化学学报2018,46,4:9
7H2 strain attenuated live hepatitis A vaccines:protective efficacy in a hepatitis A outbreak显示文摘AIM To investigate the protective efficacy ofH2 strain attenuated live hepatitis A vaccines(H2-strain vaccines)in hepatitis A(HA)outbreaks.METHODS With the permission of theirparents,5551 pre-school and grade 1-3 primaryschool children were inoculated with 1 dose(106.5TCID50)of H2-strain vaccines in anonrandomized,controlled trial conducted inFucheng County,Hebei Province in May 1997.Another 6485 children in the same grades andcompatible in gender and age were enrolled ascontrols.Epidemiological and serological surveywas conducted to evaluate the protectiveefficacy of the vaccines.ELISA was used todetect serum IgM anti-HAV.RESULTS HA outbreak started in early May1998,peaked in the middle of the same month,and lasted about 80 days.Overall 302 HA caseswere found,192(53.58%)were 5-9 years old.One vaccinee and 25 control cases were found tohave hepatitis A,which account for 0.28%(1/356)and 5.92%(25/422)of all vaccinees andcontrols in the 14 villages,respectively.The protective efficacy of vaccines was 95.27%(95% Cl:85.83%-104.72%).In subjects testedfor anti-HAV IgM from 13 villages,1(0.40%)overt and 11(4.06%)asymptomatic HAV caseswere found in 271 vaccinees,but 21(6.69%)ofovert and asymptomatic ones were found in 314controls.CONCLUSION H2 strain vaccines were excellent in preventing overt hepatitis A, but not so effective in preventing asymptomatic hepatitis A virus infection. A booster dose might be needed to get permanent reliable immunity.Yu Liang Zhao Zong Da Meng Zhi Yi Xu Jun Jie Guo Shao Ai Chai Cheng Gang Duo Xuan Yi Wang Jin Feng Yao Hong Bin Liu Shun Xiang Qi Hui Bin Zhu 2000World Journal of Gastroenterology2000,6,6:7
8In-situ electrochemical activation designed hybrid electrocatalysts for water electrolysis显示文摘Developing transition metal-based electrocatalysts with rich active sites for water electrolysis plays important roles in renewable energy fields. So far, some strategies including designing nanostructures,incorporating conductive support or foreign elements have been adopted to develop efficient electrocatalysts. Herein, we summarize recent progresses and propose in-situ electrochemical activation as a new pretreating technique for enhanced catalytic performances. The activation techniques mainly comprise facile electrochemical processes such as anodic oxidation, cathodic reduction, etching, lithium-assisted tuning and counter electrode electro-dissolution. During these electrochemical treatments, the catalyst surfaces are modified from bulk phase, which can tune local electronic structures, create more active species, enlarge surface area and thus improve the catalytic performances. Meanwhile, this technique can couple the atomic, electronic structures with electrocatalysis mechanisms for water splitting.Compared to traditional chemical treatment, the in-situ electrochemical activation techniques have superior advantages such as facile operation, mild environment, variable control, high efficiency and flexibility. This review may provide guidance for improving water electrolysis efficiencies and hold promising for application in many other energy-conversion fields such as supercapacitors, fuel cells and batteries.Xiao Shang Bin Dong Yong-Ming Chai Chen-Guang Liu 2018Science Bulletin2018,63,13:6
9Structural basis for differential recognition of brassinolide by its receptors显示文摘Brassinosteroids,a group of plant steroid hormones,reg-ulate many aspects of plant growth and development.We and other have previously solved the crystal structures of BRI1(LRR)in complex with brassinolide,the most active brassinosteroid identifi ed thus far.Although these studies provide a structural basis for the recognition of brassi-nolide by its receptor BRI1,it still remains poorly under-stood how the hormone differentiates among its con-served receptors.Here we present the crystal structure of the BRI1 homolog BRL1 in complex with brassinolide.The structure shows that subtle differences around the brassinolide binding site can generate a striking effect on its recognition by the BRI1 family of receptors.Structural comparison of BRL1 and BRI1 in their brassinolide-bound forms reveals the molecular basis for differential binding of brassinolide to its different receptors,which can be used for more effi cient design of plant growth regulators for agricultural practice.On the basis of our structural studies and others’data,we also suggest possible mech-anisms for the activation of BRI1 family receptors.Ji She Zhifu Han Bin Zhou Jijie Chai 2013Protein & Cell2013,4,6:6
10Consensus on the digestive endoscopic tunnel technique显示文摘With the digestive endoscopic tunnel technique(DETT), many diseases that previously would have been treated by surgery are now endoscopically curable by establishing a submucosal tunnel between the mucosa and muscularis propria(MP). Through the tunnel, endoscopic diagnosis or treatment is performed for lesions in the mucosa, in the MP, and even outside the gastrointestinal(GI) tract.At present, the tunnel technique application range covers the following:(1)Treatment of lesions originating from the mucosal layer, e.g., endoscopic submucosal tunnel dissection for oesophageal large or circular early-stage cancer or precancerosis;(2) treatment of lesions from the MP layer, per-oral endoscopic myotomy, submucosal tunnelling endoscopic resection, etc.; and(3) diagnosis and treatment of lesions outside the GI tract, such as resection of lymph nodes and benign tumour excision in the mediastinum or abdominal cavity. With the increasing number of DETTs performed worldwide, endoscopic tunnel therapeutics, which is based on DETT, has been gradually developed and optimized. However, there is not yet an expert consensus on DETT to regulate its indications, contraindications, surgical procedure, and postoperative treatment.The International DETT Alliance signed up this consensus to standardize the procedures of DETT. In this consensus, we describe the definition, mechanism,and significance of DETT, prevention of infection and concepts of DETTassociated complications, methods to establish a submucosal tunnel, and application of DETT for lesions in the mucosa, in the MP and outside the GI tract(indications and contraindications, procedures, pre-and postoperative treatments, effectiveness, complications and treatments, and a comparison between DETT and other operations).Ning-Li Chai Hui-Kai Li En-Qiang Linghu Zhao-Shen Li Shu-Tian Zhang Yu Bao Wei-Gang Chen Philip WY Chiu Tong Dang Wei Gong Shu-Tang Han Jian-Yu Hao Shui-Xiang He Bing Hu1 Bing Hu2 Xiao-Jun Huang Yong-Hui Huang Zhen-Dong Jin Mouen A Khashab James Lau Peng Li Rui Li De-Liang Liu Hai-Feng Liu Jun Liu Xiao-Gang Liu Zhi-Guo Liu Ying-Cai Ma Gui-Yong Peng Long Rong Wei-Hong Sha Pateek Sharma Jian-Qiu Sheng Shui-Sheng Shi Dong Wan Seo Si-Yu Sun Gui-Qi Wang Wen Wang Qi Wu Hong Xu Mei-Dong Xu Ai-Ming Yang Fang Yao Hong-Gang Yu Ping-Hong Zhou Bin Zhang Xiao-Feng Zhang Ya-Qi Zhai 2019World Journal of Gastroenterology2019,25,7:5
11The effects of orientation control via tension-compression on microstructural evolution and mechanical behavior of AZ31 Mg alloy sheet显示文摘The grain orientation control via twinning activity on deformation features is of great significance to offer a key insight into understanding the deformation mechanism of Mg alloy sheets.The{10–12}twinning were performed by pre-strain paths,i.e.,tension(6%)and compression(5%)perpendicular to the c-axis along extrusion direction(ED),to investigate the microstructural evolution and mechanical properties of AZ31 Mg alloy sheets.The distinction in the texture evolution and strain hardening behavior was illustrated in connection with the pre-strain paths for the activities of twinning and slip.The result shows that the activation of the deformation mode was closely bound up with the grain orientation and the additional applied load direction.The{10–12}twin-texture components with c-axis//ED were generated by precompression,which can provide an appropriate alternative to accommodate the thin sheet thickness strain and enhance the room temperature formability of Mg alloy sheet.Qingshan Yang Bin Jiang Bo Song Zujian Yu Dewei He Yanfu Chai Jianyue Zhang Fusheng Pan 2022Journal of Magnesium and Alloys2022,10,2:4
12Medicinals with properties of warming Yang and tonifying Qi in terms of Traditional Chinese Medicine: their effects on left ventricular ejection fraction and aldosterone in rats with induced failure heart显示文摘OBJECTIVE: To investigate on Left ventricular ejection fraction value and aldosterone of two medicinals of Traditional Chinese Medicine(TCM) with the properties of warming Yang and tonifying Qi in terms of TCM theory.METHODS: An animal model of coronary ligation of heart failure after myocardial infarction was employed to study the influence of these two kinds of drugs on three batches of rats. On the basis of the average score of left ventricle ejection fraction during the investigation, there were some different groups, including Wen Yang(the warming Yang)group, Yi Qi(tonifying Qi) group, Wen Yang and Yi Qi group, captopril group, digoxin group. In additional, an artificial operation group was set for compari-son. The systemic intervention using these medicinal and drugs was taken effects on the 2nd day after the operation of myocardial infraction(MI) with once a day. At week one, two, and four after the MI treatment, evaluated were EF values, and ferritin,angiotensin-II and aldosterone in the rats' plasma.RESULTS: At week one and week two, the medicinal of Wen Yang, Yi Qi, Wen Yang pluse Yi Qi, and digoxin could improve left ventricular ejection fraction in rats with heart failure; Compared to the model group, captopril Left ventricular EF value increased, but there was not significant. At week four,heart failure and left ventricular EF values was improved in the intervention group and the other four captopril drug intervention. At week one in the rats with drug intervention, the medicinals of Yi Qi, Wen Yang plus Yi Qi, and captopril could inhibit activation in vivo hormone aldosterone in heart failure rats; aldosterone in Wen Yang group and digoxin group were not different from that in the model group at week two and four.CONCLUSION: Chinese medicinals with properties of Wen Yang, Yi Qi have significant effect on improving left ventricular EF in rats with heart failure; compared to Yi Qi medicinals, Wen Yang medicinals that inhibit the effectiveness of the time required for the activation of the role of aldosterone. The medicinals of Wen Yang and Yi Qi seems better by inhibiting the activation of the hormone aldosterone after failing to inhibit ventricular remodeling to improve heart failure.Han Lihua Wang Zhentao Chai Songbo Xing Guohui Wang Hongxing Yuan Bin Li Zhiwei Su Shihao 2016Journal of Traditional Chinese Medicine2016,36,6:4
13Synergetic effect between sulfurized Mo/γ-Al_2O_3 and Ni/γ-Al_2O_3 catalysts in hydrodenitrogenation of quinoline显示文摘An evidence for the synergetic effect between the stacked bed of Mo/γ-Al2O3 and Ni/γ-Al2O3 in the hydrodenitrogenation (HDN) reaction of quinoline has been provided in this paper. The synergism factor decreases when the reaction temperature increases (280?340 ?C). The synergetic effect leads to improve the hydrogenation activity for the stacked bed compared with the single Mo/γ-Al2O3 bed, which may be attributed to the generation of hydrogen spillover on the Ni/γ-Al2O3 catalyst.Lihua Liu Bin Liu Yongming Chai Yunqi Liu Chenguang Liu 2011Journal of Natural Gas Chemistry2011,20,2:4
14High-pressure microwave-assisted synthesis of WS_(x)/Ni_(9)S_(8)/NF hetero-catalyst for efficient oxygen evolution reaction显示文摘Designing the specific crystal phase with better intrinsic activity and more active sites is a very promising strategy for earth-abundant electrocatalysts for oxygen evolution reaction(OER).Herein,a facile two-step method including the high-pressure microwave and the hydrothermal sulfurization is adopted to prepare the WS_(x)/Ni_(9)S_(8) hetero-catalyst on nickel foam(WS_(x)/Ni_(9)S_(8)/NF).Firstly,WO3 polyhedrons homogeneously cover the surface of NF through the high-pressure microwave hydrothermal process.Secondly,WS_(x)/Ni_(9)S_(8) nanoparticles on the surface of NF can be synthesized after a hydrothermal sulfurization,which has been confirmed by scanning electron microscopy(SEM) elemental mapping and high-resolution transmission electron microscopy(HRTEM).The amorphous WSx and Ni9 S8 phase may provide the dual active sites for OER.The electrochemical measurements show that WS_(x)/Ni_(9)S_(8)/NF has superior OER activity with a low overpotential of 320 mV at the current density of 100 mA·cm^(-2),better than those of other samples.The enhanced OER performance may be due to the synergistic catalysis from Ni9 S8 phase and high valence of W.Owing to the stable structure of Ni9 S8,the long-term stability of WS_(x)/Ni_(9)S_(8)/NF for at least 10 h can be obtained.This work may provide a new approach for the doped nickel sulfides crystal phase through high-pressure microwave hydrothermal assistance for OER.Xue Ma Xin-Yu Zhang Min Yang Jing-Yi Xie Ren-Qing Lv Yong-Ming Chai Bin Dong 2021Rare Metals2021,40,5:3
15Effect of Doped Boron on the Properties of ZnO Thin Films Prepared by Sol-gel Spin Coating显示文摘WEN Bin LIU Chaoqian FEI Weidong WANG Hualin LIU Shimin WANG Nan CHAI Weiping 2014Chemical Research in Chinese Universities2014,30,3:3
16Facile synthesis of V-doped CoP nanoparticles as bifunctional electrocatalyst for efficient water splitting显示文摘Adjusting the intrinsic activity and conductivity of electrocatalysts may be a crucial way for excellent performance for water splitting.Herein,the rational design of vanadium element doped cobalt phosphide(V-doped CoP)nanoparticles has been investigated through a facile gaseous phosphorization using cobalt vanadium oxide or hydroxide(Co-V hydr(oxy)oxide)as precursor.The physical characterization shows that the homogeneous dispersion of V element on V-doped CoP nanoparticles have obtained,which may imply the enhanced electrocatalytic activity for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER).The electrochemical measurements of the prepared V-doped CoP in alkaline electrolyte demonstrate the superior electrocatalytic activity for both HER(overpotential of 235 mV@10 mA cm^-2)and OER(overpotential of 340 mV@10 mA cm^-2).Further,V-doped CoP nanoparticles used as anode and cathode simultaneously in a cell require only 370 mV to achieve a current density of 10 mA cm^-2.The outstanding electrocatalytic activity may be ascribed to the improved conductivity and intrinsic activity owing to phosphating and the doping of V element.In addition,the long-term stability of V-doped Co P has been obtained.Therefore,metal doping into transition metal-based phosphides may be a promising strategy for the remarkable bifunctional electrocatalyst for water splitting.Jun-Feng Qin Jia-Hui Lin Tian-Shu Chen Da-Peng Liu Jing-Yi Xie Bao-Yu Guo Lei Wang Yong-Ming Chai Bin Dong 2019Journal of Energy Chemistry2019,28,12:3
17Effect of the V/Ⅲ ratio during buffer layer growth on the yellow and blue luminescence in undoped GaN epilayer显示文摘Effect of the V/III ratio during buffer layer growth on the yellow and blue luminescence in undoped GaN epilayer has been studied by means of photoluminescence spectroscopy and high resolution X-ray diffraction.It is found that the densities of screw and edge threading dislocations increase with the V/III ratio of the buffer layer,and the intensities of the yellow luminescence(YL) and blue luminescence(BL) emissions also increase dramatically.However,the density ratio of the edge threading dislocation to the screw threading dislocation remains invariant,as well as the intensity ratio of YL emission to BL emission.It can be concluded from these phenomena that the edge threading dislocation and screw threading dislocation can enhance the YL and BL emissions,respectively.CHAI XuZhao ZHANG Yun LIU Bin XIE ZiLi HAN Ping YE JianDong HU LiQun XIU XiangQian ZHANG Rong ZHENG YouDou 2013Science China(Physics,Mechanics & Astronomy)2013,56,9:2
18Transcranial sonography in differential diagnosis of Parkinson disease and other movement disorders显示文摘Background:Reports evaluating the efficacy of transcranial sonography(TCS)for the differential diagnosis of Parkinson disease(PD)and other movement disorders in China are scarce.Therefore,this study aimed to assess the application of TCS for the differential diagnosis of PD,multiple system atrophy(MSA),progressive supranuclear palsy(PSP),and essential tremor(ET)in Chinese individuals.Methods:From 2017 to 2019,500 inpatients treated at the Department of Dyskinesia,Beijing Tiantan Hospital,Capital Medical University underwent routine transcranial ultrasound examination.The cross-sections at the midbrain and thalamus levels were scanned,and the incidence rates of substantia nigra(SN)positivity and the incidence rates of lenticular hyperechoic area were recorded.The echo of the SN was manually measured.Results:Of the 500 patients,125 were excluded due to poor signal in temporal window sound transmission.Among the 375 individuals with good temporal window sound transmission,200 were diagnosed with PD,90 with ET,50 with MSA,and 35 with PSP.The incidence rates of SN positivity differed significantly among the four patient groups(χ^(2)=121.061,P<0.001).Between-group comparisons were performed,and the PD group showed a higher SN positivity rate than the ET(χ^(2)=94.898,P<0.017),MSA(χ^(2)=57.619,P<0.017),and PSP(χ^(2)=37.687,P<0.017)groups.SN positivity showed a good diagnostic value for differentiating PD from the other three movement diseases,collectively or individually.The incidences of lenticular hyperechoic area significantly differed among the four patient groups(χ^(2)=38.904,P<0.001).Next,between-group comparisons were performed.The lenticular hyperechoic area was higher in the PD group than in the ET(χ^(2)=6.714,P<0.017)and MSA(χ^(2)=18.680,P<0.017)groups but lower than that in the PSP group(χ^(2)=0.679,P>0.017).Conclusion:SN positivity could effectively differentiate PD from ET,PSP,and MSA in a Chinese population.Li-Shu Wang Teng-Fei Yu Bin Chai Wen He 2021Chinese Medical Journal2021,,14:2
19Effects of Blast Wave-induced Biomechanical Changes on Lung Injury in Rats显示文摘Objective To observe the dynamic impacts of shock waves on the severity of lung injury in rats with different injury distances.Methods Simulate open-field shock waves;detect the biomechanical effects of explosion sources at distances of 40,44,and 48 cm from rats;and examine the changes in the gross anatomy of the lungs,lung wet/dry weight ratio,hemoglobin concentration,blood gas analysis,and pathology.Results Biomechanical parameters such as the overpressure peak and impulse were gradually attenuated with an increase in the injury distance.The lung tissue hemorrhage,edema,oxygenation index,and pathology changed more significantly for the 40 cm group than for the 44 and 48 cm groups.The overpressure peak and impulse were significantly higher for the 40 cm group than for the 44 and 48 cm groups(P<0.05 or P<0.01).The animal mortality was significantly higher for the 40 cm group than for the other two groups(41.2%vs.17.8%and 10.0%,P<0.05).The healing time of injured lung tissues for the 40 cm group was longer than those for the 44 and 48 cm groups.Conclusions The effects of simulated open-field shock waves on the severity of lung injuries in rats were correlated with the injury distances,the peak overpressure,and the overpressure impulse.LIU Wei CHAI Jia Ke QIN Bin HAN Shao Fang WANG Xiao Teng JIANG Shuai BAI Hai Liang LIU Ling Ying CHANG Yang YUE Xiao Tong WU Yu Shou ZHANG Zi Hao TANG Lang 2020Biomedical and Environmental Sciences2020,33,5:2
20Cell-wall Invertases from Rice are Differentially Expressed in Caryopsis during the Grain Filling Stage显示文摘Cell-wall invertase plays an important role in sucrose partitioning between source and sink organs in higher plants. To investigate the role of cell-wall invertases for seed development in rice (Oryza sativa L.), cDNAs of three putative cell-wall invertase genes OsCIN1, OsCIN2 and OsCIN3 were isolated. Semi-quantitative reverse transcription-polymerase chain reaction analysis revealed different expression patterns of the three genes in various rice tissues/organs. In developing caryopses, they exhibited similar temporal expression patterns, expressed highly at the early and middle grain filling stages and gradually declined to low levels afterward. However, the spatial expression patterns of them were very different, with OsCIN1 primarily expressed in the caryopsis coat, OsCIN2 in embryo and endosperm, and OsCIN3 in embryo. Further RNA in situ hybridization analysis revealed that a strong signal of OsCIN2 mRNA was detected in the vascular parenchyma surrounding the xylem of the chalazal vein and the aleurone layer, whereas OsCIN3 transcript was strongly detected in the vascular parenchyma surrounding the phloem of the chalazal vein, cross-cells, the aleurone layer and the nucellar tissue. These data indicate that the three cell-wall invertase genes play complementary/synergetic roles in assimilate unloading during the grain filling stage. In addition, the cell type-specific expression patterns of OsCIN3 in source leaf blades and anthers were also investigated, and its corresponding physiological roles were discussed.Yong-Qin Wang Xiao-Li Wei Hong-Lin Xu Cheng-Lin Chai Kun Meng Hong-Li Zhai Ai-Jun Sun Yong-Gang Peng Bin Wu Gui-Fang Xiao Zhen Zhu 2008Journal of Integrative Plant Biology2008,50,4:2
返回顶部 每页显示:
共5页 首页 上一页 第1页 下一页 末页 /5 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费