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| 1 | The intracellular mechanism of alpha-fetoprotein promoting the proliferation of NIH 3T3 cells显示文摘AIM The existence and properties of alpha-fetoprotein (AFP) receptor on the surface of NIH 3T3 cells and the effects of AFP on cellular signal transduction pathway were investigated. METHODS The effect of AFP on the proliferation of NIH 3T3 cells was measured by incorporation of 3H-TdR. Receptor-binding assay of 125I-AFP was performed to detect the properties of AFP receptor in NIH 3T3 cells. The influences of AFP on the [cAMP]i and the activities of protein kinase A (PKA) were determined. Western blot was used to detect the change of K-ras P21 protein expression. RESULTS The proliferation of NIH 3T3 cells treated with 0-80 mg/L of AFP was significantly enhanced. The Scatchard analysis indicated that there were two classes of binding sites with KD of 2.722×10-9M (Bmax=12810 sites per cell) and 8.931× 10-SM (Bmax=l19700 sites per cell) respectively. In the presence of AFP (20 mg/L), the content of cAMP and activities of PKA were significantly elevated . The level of K-ras P21 protein was upregulated by AFP at the concentration of 20 mg/L. The monoclonal antibody against AFP could reverse the effects of AFP on the cAMP content, PKA activity and the expression of K-ras p21 gene. CONCLUSION The effect of AFP on the cell proliferation was achieved by binding its receptor to trigger the signal transduction pathway of cAMP-PKA and alter the expression of K- ras p21 gene. | MENG SEN LI, PING FENG LI, FBI YI YANG, SHI PENG HE, Guo GUANG DU, GANG LI1 Department of Biochemistry and Molecular Biology, 2 Department of Biophysics, Health Science Center, Peking University, Beijing 100083, China | 2002 | Cell Research2002，12，2： | 27 |
| 2 | Sedimentary Characteristics of the Cretaceous in the Songliao Basin显示文摘The rupture of the lithosphere in Late Jurassic brought about the eruption of basaltic magma in the Songliao Basin. The evolution of the basin in Cretaceous progressed through six stages: pre-rift doming, extensional fracturing, fault subsidence, fault downwarping, downwarping and shringkage, resulting in the deposition of terrstrial facies nearly 10,000 m thick. There are different depositional sequences in these stages: the depositional period of the Early Cretaceous Shahezi and Yincheng Formations is the development stage of the down-faulted basin, forming a volcanic rock-alluvial fan-fan delta-lacustrine (intercalated with episodic turbidites)-swamp facies sequences; the period of the Early Cretaceous Dengluku Formation is the transformation stage of fault subsidence into fault downwarping of the basin, forming a sequence mainly of alluvial plain-lacustrine facies; the depositional period of the Early Cretaceous Quantou Formation-Late Cretaceous Nenjiang Formation is the downwarping stage of the basin, forming an alluvial plain-delta-lacustrine facies sequence; the period of the Late Cretaceous Sifangtai Formation-Mingshui Formation is the shringkage stage of the basin, forming again a sequence mainly of alluvial plain-alluvial fan and small relict lacustrine facies. These vertical depositional sequences fully display the sedimentary characteristics of a failed continental rift basin. Many facts indicate that the two large-scale lake invasions, synchronous with the global rise of sea level, which took place in the downwarping stage of the basin development, led to the connection between the lake and sea. | Liu Zhaojun, Wang Dongpo, Liu Li, Liu Wanzhu, Wang Pujun, Du Xiaodi and Yang Guang Changchun University of Earth Sciences, Changchun, Jilin Sun Sheping | 1993 | Acta Geologica Sinica(English Edition)1993，67，2： | 7 |
| 3 | Molecular Characterization and Drug-resistance of Mycobacterium tuberculosis Strains in Xuzhou, China显示文摘To understand the genetic diversity and drug resistance status of Mycobacterium tuberculosis(M tuberculosis)circulating in Xuzhou of China,the spacer-oligonucleotide typing(Spoligotyping)and multi-loci VNTRs(variable number tandem repeats)analysis(MLVA)were utilized for the genotyping of the isolates.Drug susceptibility test(DST) | PANG Hui TONG Jing LIU Hai Can DU Yang Guang ZHAO Xiu Qin JIANG Yi WU Xiao Cui YANG Jin Chuan WAN Kang Lin | 2014 | Biomedical and Environmental Sciences2014，27，12： | 7 |
| 4 | Effects of TiC on the microstructure and formation of acicular ferrite in ferritic stainless steel显示文摘The formation mechanism of acicular ferrite and its microstructural characteristics in 430 ferrite stainless steel with TiC additions were studied by theory and experiment.Using an'edge?to?edge matching'model,a 5.25 mismatch between TiC(FCC structure)and ferritic stainless steel(BCC structure)was identified,which met the mismatch requirement for the heterogeneous nucleation of 430 ferritic stainless steel.TiC was found to be an effective nucleation site for the formation of acicular ferrite in a smelting experiment,as analyzed by metallographic examination,Image-Pro Plus 6.0 analysis software,and SEM–EDS.Furthermore,small inclusions in the size of 2–4?m increased the probability of acicular ferrite nucleation,and the secondary acicular ferrite would grow sympathetically from the initial acicular ferrite to produce multi-dimensional acicular ferrites.Moreover,the addition of Ti C can increase the average microstrain and dislocation density of 430 ferrite stainless steel,as calculated by Williamson-Hall(WH)method,which could play some role in strengthening the dislocation. | Yang Li Peng-fei Du Zhou-hua Jiang Cong-lin Yao Lu Bai Qi Wang Guang Xu Chang-yong Chen Lei Zhang Hua-bing Li | 2019 | International Journal of Minerals,Metallurgy and Materials2019，26，11： | 4 |
| 5 | Molecular Epidemiology and Clinical Features of Haemophilus influenzae among Hospitalized Children with Community-acquired Pneumonia in Chengde,China显示文摘Community-acquired pneumonia(CAP)is an acute lung infection that is caused by several different pathogens and is associated with significant morbidity and mortality.The high global incidence of CAP poses a heavy disease and economic burden to patients,especially children.Respiratory illnesses such as pneumonia and influenza are the fourth leading cause of death in China[1].The top 3 etiologic pathogens of CAP in the Asia-Pacific region are Streptococcus pneumoniae,Haemophilus influenzae(H.influenzae),and Mycoplasma pneumoniae(M.pneumoniae). | LI Dan WANG Qian SU Meng WANG Ling Ling ZHANG Qing WANG Chun Yang WANG Jiang Li DU Luan Ying LIU Jian Ying XIE Guang Cheng | 2020 | Biomedical and Environmental Sciences2020，33，8： | 3 |
| 6 | Interactions between dislocations and twins in deformed titanium aluminide crystals显示文摘Using scanning, transmission electron microscopy and aberration-corrected scanning transmission electron microscopy, we have studied the interactions between dislocations and twins in impact deformed polysynthetic twinned TiAl crystal. The 1/3 < 111] and 1/6 < 211] step dislocations on coherent twin boundaries reveal the interactions of glissile 1/2 < 101> dislocations with the coherent twin boundaries.An abnormal stacking fault was found adjacent to the coherent twin boundary. It has the same stacking sequence but different atom species in the [110] direction with an additional displacement of 1/4[110]in two neighboring {111} layers, and is likely induced by the slip of a 1/12[112](i.e. 1/4[110] + 1/6[211])dislocation. | Guang Yang Shang-Yi Ma Kui Du Dong-Sheng Xu Sen Chen Yang Qi Heng-Qiang Ye | 2019 | Journal of Materials Science & Technology2019，35，3： | 2 |
| 7 | Prevalence of Tuberculosis among Close Contacts of Index Cases in 27 Universities in Beijing,China,2017-2018显示文摘The World Health Organization(WHO)launched the‘End TB Strategy’,which aims to reduce the mortality and incidence rate of tuberculosis(TB)by 95% and 90% by 2035,respectively,compared with the levels in 2015.To achieve these targets and milestones,the strategy set three pillars and 10 indicators,one of which is systematic screening of contacts and high-risk groups[1]. | ZHAO Fei ZHANG Zhi Guo MA Shu Bo YANG Zhen HE Yan Ping WANG Lu Qin OWITI Philip MA Chao LI Tao DU Xin ZHANG Can You CHENG Jun WANG Li Xia HE Guang Xue ZHANG Hui LI Ke Xin | 2020 | Biomedical and Environmental Sciences2020，33，10： | 2 |
| 8 | Detection of an anti-angina therapeutic module in the effective population treated by a multi-target drug Danhong injection:a randomized trial显示文摘It's a challenge for detecting the therapeutic targets of a polypharmacological drug from variations in the responsed networks in thedfferentiated populations with complex diseases,as stable coronary heart disease.Here,in an adaptive,31-center,randomized,double-blind trial invoving 920 patients with moderate symptomatic stable angina treated by 14-day Danhong injection(DHI),a kind of polyphamacological drug with high quality control,or placebo(0.9%saline),with 76-day following-up,we firstly confrmed that DHl couldincrease the proportion of patients with clinically significant changes on angina-frequency assessed by Seattle Angina Questionnaire(ASAQ-AF220)(12.78%at Day 30,95%confidence interval[C]5.86-19.71%,P=0.0003,13.82%at Day 6C0,95%CI 6.82-20.82%,P=0.0001and 8.95%at Day 90,95%CI 2.06-15.85%,P=0.01).We also found that there were no significant differences in new-onset major vascularevents(P=0.8502)and serious adverse events(P=0.9105)between DHl and placebo.After performing the RNA sequencing in 62 selectedpatients,we developed a systemic modular approach tp identfy differentilly expressed modules(DEMs)of DHI with the Z_(summay)valueless than 0 compared with the control group,calculated by weighted gene co-expression network analysis(WGCNA),and sketched out thebasic framework on a modular map with 25 functional modules targeted by DII.Furthermore,the effective therapeutic module(ETM),defined as the highest corelation value with the phenotype alteration(SAQ-AF,the change in SAQ-AF at Day 30 from baseline)calculatedby WGCNA,was identifed in the population with the best effect(ASAQ-AF240),which is related to anticoagulation and regulation ofcholesterol metabolism.We assessed the modular flexbility of this ETM using the global topological D value based on Euclidean distance,which is corelated with phenotype alteration(r^(2):0.8204,P=0.019)by linear regression.Our study identified the ant-angina therapeuticmodule in the effective population treated by the multi-target drug.Modular methods facilitate the discovery of network pharmacologicalmechanisms and the advancement of precision medicine.(ClinicalTrials.gov identifier:NCTO1681316). | Jun Liu Dan-Dan Li Wei Dong Yu-Qi Liu Yang Wu Da-Xuan Tang Fu-Chun Zhang Meng Qiu Qi Hua Jing-Yu He Jun Li Bai Du Ting-Hai Du Lin-Lin Niu Xue-Jun Jiang Bo Cui Jiang-Bin Chen Yang-Gan Wang Hai-Rong Wang Qin Yu Jing He Yi-Lin Mao Xiao-Fang Bin Yue Deng Yu-Dan Tian Qing-Hua Han Da-Jin Liu Li-Qin Duan Ming-Jun Zhao Cui-Ying Zhang Hai-Ying Dai Ze-Hua Li Ying Xiao You-Zhi Hu Xiao-Yu Huang Kun Xing Xin Jiang Chao-Feng Liu Jing An Feng-Chun Li Tao Tao Jin-Fa Jiang Ying Yang Yao-Rong Dong Lei Zhang Guang Fu Ying Li Shu-Wei Huang Li-Ping Dou Lan-Jun Sun Ying-Qiang Zhao Jie Li Yun Xia Jun Liu Fan Liu Wen-Jin He Ying Li Jian-Cong Tan Yang Lin Ya-Bin Zhou Jian-Fei Yang Guo-Qing Ma Hui-Jun Chen He-Ping Liu Zong-Wu Liu Jian-Xiong Liu Xiao-Jia Luo Xiao-Hong Bin Ya-Nan Yu Hai-Xia Dang Bing Li Fei Teng Wang-Min Qiao Xiao-Long Zhu Bing-Wei Chen Qi-Guang Chen Chun-Ti Shen Yong-Yan Wang Yun-Dai Chen Zhong Wang | 2021 | Signal Transduction and Targeted Therapy2021，6，10： | 2 |
| 9 | S6B-2 Matrine Inhibits Itching by Lowering the Activity of Calcium Channel显示文摘Sophorae Flavescentis Radix(SFR)is a medicinal herb with many functions that are involved in anti-inflammation,antinociception,and anticancer.SFR is also used to treat a variety of itching diseases.Matrine(MT)is one of the main constituents in SFR and also has the effect of relieving itching,but the antipruritic mechanism is still unclear.Here,we investigated the effect of MT on antipruritus.In acute and chronic itch models,MT significantly inhibited the scratching behavior not only in acute itching induced by histamine(His),chloroquine(CQ)and compound 48/80 with a dose-depended manner,but also in the chronic pruritus models of Atopic dermatitis(AD)and Acetone-ether-water(AEW)in mice.Furthermore,MT can be detected in the blood after intraperitoneal injection(i.p.)and subcutaneous injection(s.c.).Finally,electrophysiological and calcium image results show that MT inhibits the excitatory synaptic transmission from dorsal root ganglion(DRG)to the dorsal horn of the spinal cord by suppressing presynaptic N-type calcium channels.Taken together,we believe that MT is a novel drug candidate in treating pruritus diseases,especially for histamine-independent and chronic pruritus,which might be attributed to inhibition of presynaptic N-type calcium channels. | GENG Xiao SHI Hao YE Fan DU Han QIAN Lin-nan GU Le-ying WU Guan-yi ZHU Chan YANG Yan WANG Chang-ming ZHOU Yuan YU Guang LIU Qin DONG Xin-zhong YU Lei 唐宗湘 | 2018 | 神经药理学报2018，8，4： | 2 |
| 10 | Transcriptomic Response to Yersinia pestis:RIG-I Like Receptor Signaling Response Is Detrimental to the Host against Plague显示文摘Bacterial pathogens have evolved various mechanisms to modulate host immune responses for successful infection.In this study,RNAsequencing technology was used to analyze the responses of human monocytes THP1 to Yersinia pestis infection.Over 6000 genes were differentially expressed over the 12 h infection.Kinetic responses of pathogen recognition receptor signaling pathways,apoptosis,antigen processing,and presentation pathway and coagulation system were analyzed in detail.Among them,RIG-I-like receptor(RLR) signaling pathway,which was established for antiviral defense,was significantly affected.Mice lacking MAVS,the adaptor of the RLR signahng pathway,were less sensitive to infection and exhibited lower IFN-P production,higher Thl-type cytokines IFN-y and IL-12 production,and lower Th2-type cytokines EL-4 and IL-13 production in the serum compared with wild-type mice.Moreover,infection of pathogenic bacteria other than Y.pestis also altered the expression of the RLR pathway,suggesting that the response of RLR pathway to bacterial infection is a universal mechanism. | Zongmin Du Huiying Yang Yafang Tan Guang Tian Qingwen Zhang Yujun Cui Yanfeng Yan Xiaohong Wu Zuyun Chen Shiyang Cao Yujing Bi Yanping Han Xiaoyi Wang Yajun Song Ruifu Yan | 2014 | Journal of Genetics and Genomics2014，41，7： | 2 |
| 11 | Cell polarity protein Par3 complexes with DNA-PK via Ku70 and regulates DNA double-strand break repair显示文摘分区有缺陷者 3 (Par3 ) ,在 conservedPar3/Par6/aPKC 建筑群的一个关键部件,在房间极性的戏基础角色。此处,我们报导 Ku70 和通过试管内绑定试金的蛋白质由液体层析双人脚踏车质谱法跟随了的 Ku80 同样新奇的交往 Par3 的鉴定。Ku70/Ku80 蛋白质是 DNA 依赖的蛋白激酶(DNA-PK ) 的二个关键规章的子单元,它在修理双海滨脱氧核糖核酸裂缝(DSB ) 起一个必要作用。我们决定 Par3 withKu70/Ku80 的原子协会被 y 照耀(红外) 提高,有势力 DSB inducer。而且, DNA-PKcs, DNA-PK 的催化子单元,响应红外与 Par3/Ku70/Ku80 建筑群交往了。Par3over 表示或击倒分别地能够 up- 或 downregulat-ing DNA-PK 活动。而且, Par3 击倒的房间被发现在随机的原生质标志集成有缺点,在 DSB 修理追随者红外有缺点、对射线敏感,类似于 Ku70knockdown 房间的显型。这些调查结果作为 DNA-PK 建筑群的一个新奇部件识别 Par3 并且含有到 DSB 修理的房间极性的一个意外连接。 | Longhou Fang YiGuo Wang Dan Du Guang Yang Tim Tak Kwok Siu Kai Kong Benjamin Chen David J Chen Zhengjun Chen | 2007 | Cell Research2007，17，2： | 2 |
| 12 | Comparison of Ethylation at External Surface and Internal Cavity of H-MCM-22 Zeolite from Theoretical Calculations显示文摘Summaryof main observation and conclusion Understanding and optimizing structure of active sites is of significance in zeolite catalysis.Benzene ethylation is an industrially important process catalyzed by H-MCM-22 zeolite;while the active sites still remain elusive.In this work,density functional theory(DFT)calculations were employed to investigate the benzene ethylation at two different types of Br?nsted acid sites(BAS)in H-MCM-22 zeolite,namely the internal cavity(IC)acid site and the external surface(ES)acid site.Both the stepwise and concerted pathways were addressed.The compari-son of the calculated energetics of two pathways indicates that the benzene ethylation reaction primarily proceeds via the concerted pathway at both the IC and ES acid sites of H-MCM-22.The calculated overall Gibbs free energies at reaction condition(473 K and 3.5 MPa)on the IC and ES acid sites are 90 and 86 kJ/mol,with the rate constants of 1.20×10^3and 2.92×10^3s^-1,respectively.It indicates that benzene ethylation could occur both on the IC and ES acid sites,with the catalytic activity of IC acid site being slightly lower than that of ES acid site.Furthermore,we theoretically reveal that the acid strength at the ES site is slightly weaker than that at the IC site via the frequency shift after the adsorption of CO.The differences in dispersion interaction between ES and IC sites are also quantified by the adsorption of base molecules with different sizes.The calculated results in this work demonstrate that the acid sites at the external surface of H-MCM-22 zeolites are suitable for benzene ethylation to produce ethylbenzene,providing theoretical implications for tailoring the distribution of active sites in H-MCM-22 zeolite. | Yu-Jue Du Chuan-Ming Wang Guang Yang Wei-Min Yang | 2020 | Chinese Journal of Chemistry2020，38，1： | 1 |
| 13 | Dietary quercetin combining intratumoral doxorubicin injection synergistically induces rejection of established breast cancer in mice显示文摘 | Gangjun Du Haihong Lin Yiming Yang Shuo Zhang Xianchuang Wu Mei Wang Liyan Ji Linlin Lu Lijuan Yu Guang Han | 2010 | International Immunopharmacology2010，，7： | 1 |
| 14 | Endovascular repair of acute type B aortic dissection: Early and mid-term results显示文摘 | Shang Dong Xu Fang Jiong Huang Jin Fei Yang Zhi Zhong Li Xue Yong Wang Zhao Guang Zhang Jia Hui Du | 2006 | Journal of Vascular Surgery2006，，6： | 1 |
| 15 | CD14 + monocytes promote the immunosuppressive effect of human umbilical cord matrix stem cells显示文摘 | Ding Wang Ke Chen Wei Ting Du Zhi-Bo Han He Ren Ying Chi Shao Guang Yang Francis Bayard Delin Zhu Zhong Chao Han | 2010 | Experimental Cell Research2010，，15： | 1 |
| 16 | Human umbilical cord mesenchymal stem cells hUC-MSCs exert immunosuppressive activities through a PGE 2 -dependent mechanism显示文摘 | Ke Chen Ding Wang Wei Ting Du Zhi-Bo Han He Ren Ying Chi Shao Guang Yang Delin Zhu Francis Bayard Zhong Chao Han | 2010 | Clinical Immunology2010，，3： | 1 |
| 17 | Preparation of flake AgSnO2 composite powders by hydrothermal method显示文摘 | YANG Tian-zu DU Zuo-juan GU Ying-ying QIU Xiao-yong JIANG Ming-xi CHU Guang | 2007 | Trans Nonferrous Met Soc China2007，17，12： | 1 |
| 18 | Early and midterm results of thoracic endovascular aortic repair of chronic type B aortic dissection显示文摘 | Shang Dong Xu Fang Jiong Huang Jin Fei Yang Zhi Zhong Li Sheng Yang Jia Hui Du Zhao Guang Zhang | 2010 | The Journal of Thoracic and Cardiovascular Surgery2010，，6： | 1 |
| 19 | Distribution of Microbiota in Fine Particulate Matter Particles in Guangzhou, China显示文摘Objective High PM2.5 concentration is the main feature of increasing haze in developing states,but information on its microbial composition remains very limited.This study aimed to determine the composition of microbiota in PM2.5 in Guangzhou,a city located in the tropics in China.Methods In Guangzhou,from March 5th to 10th,2016,PM2.5 was collected in middle volume air samplers for 23 h daily.The 16 S rDNA V4 region of the PM2.5 sample extracted DNA was investigated using high-throughput sequence.Results Among the Guangzhou samples,Proteobacteria,Bacteroidetes,Firmicutes,Cyanobacteria,and Actinobacteria were the dominant microbiota accounting for more than 90%of the total microbiota,and Stenotrophomonas was the dominant gram-negative bacteria,accounting for 21.30%–23.57%.We examined the difference in bacterial distribution of PM2.5 between Beijing and Guangzhou at the genus level;Stenotrophomonas was found in both studies,but Escherichia was only detected in Guangzhou.Conclusion In conclusion,the diversity and specificity of microbial components in Guangzhou PM2.5 were studied,which may provide a basis for future pathogenicity research in the tropics. | DONG Shi Rui HAN Ya Jing WU Jing ZENG Cheng Li ZHU Ke Hui CHEN Xiao Jing LIU Yu Mei ZOU Xiao Qian ZHENG Shao Ling WEN Zi Hao LIU Dan Dan WANG Yao HUANG Xiu Xia DU Xiu Ben HAO Jian Lei WANG Huan Yu GUO Shu JING Chun Xia YANG Guang | 2020 | Biomedical and Environmental Sciences2020，33，5： | 1 |
| 20 | Significant contribution of carbonyls to atmospheric oxidation capacity(AOC)during the winter haze pollution over North China Plain显示文摘Atmospheric carbonyl compounds play significant roles in the cycling of radicals and have exhibited surprisingly high levels in winter that were well correlated to particulate matter,for which the reason have not been clearly elucidated.Here we measured carbonyl compounds and other trace gasses together with PM_(2.5)over urban Jinan in North China Plain during the winter.Markedly higher carbonyl concentrations(average:14.63±4.21 ppbv)were found during wintertime haze pollution,about one to three-times relative to those on nonhaze days,with slight difference in chemical composition except formaldehyde(HCHO).HCHO(3.68 ppbv),acetone(3.17 ppbv),and acetaldehyde(CH_3CHO)(2.83 ppbv)were the three most abundant species,accounting for~75% of the total carbonylson both haze and non-haze days.Results from observational-based model(OBM)with atmospheric oxidation capacity(AOC)indicated that AOC significantly increased with the increasing carbonyls during the winter haze events.Carbonyl photolysis have supplied key oxidants such as RO_(2) and HO_(2),and thereby enhancing the formation of fine particles and secondary organic aerosols,elucidating the observed haze-carbonyls inter-correlation.Diurnal variation with carbonyls exhibiting peak values at early-noon and night highlighted the combined contribution of both secondary formation and primary diesel-fuel sources.1-butene was further confirmed to be the major precursor for HCHO.This study confirms the great contribution of carbonyls to AOC,and also suggests that reducing the emissions of carbonyls would be an effective way to mitigate haze pollution in urban area of the NCP region. | Xue Yang Gen Zhang Guang Pan Guolan Fan Houyong Zhang Xuan Ge Mingyue Du | 2024 | Journal of Environmental Sciences2024，，5： | 0 |
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