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21篇 您的检索式:作者名="Chunxia Qiao"
    题名 作者 年代 出处 被引量
1A study on service capacity of primary medical and health institutions for cervical cancer screening in urban and rural areas in China显示文摘Objective: To provide a decision-making basis for sustainable and effective development of cervical cancer screening.Methods: This cross-sectional study assesses the service capacity to conduct cervical cancer screening with a sample of 310 medical staff, medical institutions and affiliated township health centers from 20 countylevel/district-level areas in 14 Chinese provinces in 2016.Results: The county-level/district-level institutions were the main prescreening institutions for cervical cancer screening. More medical staff have become engaged in screening, with a significantly higher amounts in urban than in rural areas(P<0.05). The number of human papillomavirus(HPV) testers grew the fastest(by 225% in urban and 125% in rural areas) over the course of the project. HPV testing took less time than cytology to complete the same number of screening tasks in both urban and rural areas. The proportion of mid-level professionals was the highest among the medical staff, 40.0% in urban and 44.7% in rural areas(P=0.406), and most medical staff had a Bachelor’s degree, accounting for 76.3% in urban and 52.0% in rural areas(P<0.001). In urban areas, 75.0% were qualified medical staff, compared with 68.0% in rural areas, among which the lowest proportion was observed for rural cytology inspectors(22.7%). The medical equipment for cervical pathology diagnosis in urban areas was better(P<0.001). HPV testing equipment was relatively adequate(typing test equipment was 70% in urban areas, and non-typing testing equipment was 70% in rural areas).Conclusions: The service capacity of cervical cancer screening is insufficient for the health needs of the Chinese population. HPV testing might be an optimal choice to fill the needs of cervical cancer screening given current Chinese medical health service capacity.Yang Li Li Ma Chunxia Yang Zhangya Chen Yuqian Zhao Le Dang Jinghe Lang Youlin Qiao 2019Chinese Journal of Cancer Research2019,31,5:5
2Potent anti-angiogenesis and anti-tumor activity of a nove human anti-VEGF antibody, MIL60显示文摘Jing Yang Qun Wang Chunxia Qiao Zhou Lin Xinying Li Yifei Huang Tingting Zhou Yan Li Beifen Shen Ming Lv Jiannan Feng 2014Cellular & Molecular Immunology2014,11,3:4
3Economic evaluation of cervical cancer screening strategies in urban China显示文摘Objective:This study evaluated the feasibility of different cervical cancer screening strategies in urban China.Methods:A Markov model was constructed to simulate a hypothetical cohort of 100,000 females aged 30-59 years in a 20-year period.Screening strategies included liquid-based cytology(LBC)every three years,human papillomavirus(HPV)DNA testing every three and five years,respectively,and a combination of HPV DNA testing and LBC(HPV+LBC)every three and five years,respectively.Model outcomes included cumulative incidence over 20 years,cumulative risk of cervical cancer,costs,life year saved(LYS),quality-adjusted life years(QALYs)and benefits.The cost-effectiveness ratios(CERs),incremental cost-effectiveness ratios(ICERs),costutility ratios(CURs),and benefit-cost ratios(BCRs)were used as outcomes in the health economic evaluation analysis.Univariate sensitivity analyses were performed to examine the stability of the results.Results:The cumulative incidence of the five screening strategies ranged from 833.02 to 1,158.07 cases per100,000 females.HPV DNA testing was most effective in reducing the cumulative risk of cervical cancer,saving life years and QALYs and gaining benefits.The CERs of HPV DNA testing every three and five years,and LBC every three years were considered to be very cost-effective if they were below China's GDP per capita.The CERs of HPV+LBC were considered to be cost-effective if they were below three times GDP per capita.The incremental cost-effectiveness analysis showed that HPV DNA testing every three and five years,LBC every three years and HPV+LBC every five years were dominant strategies.Conclusions:The findings of this study indicated that HPV DNA testing every five years or LBC every three years should be recommended in urban China.Li Ma Yuying Wang Xiaohong Gao Yi Dai Yu Zhang Zhaojing Wang Xiaoxia Wang Limin Wang Jing Jiang Xinhua Jing Chunxia Yang Fanghui Zhao Jinghe Lang Youlin Qiao 2019Chinese Journal of Cancer Research2019,31,6:4
4Selection and characterization of the novel anti-human PD-1 FV78 antibody from a targeted epitope mammalian cell-displayed antibody library显示文摘Currently,display-based methods are well established and widely used in antibody engineering for affinity maturation and structural stability improvement.We obtained a novel anti-human programmed death 1(PD-1)antibody using computer-aided design and a mammalian cell display technology platform.We used computer-aided modeling and distance geometry methods to predict and assign the key residues that contributed to the binding of human PD-L1 to PD-1.Then,we analyzed the sequence of nivolumab(an anti-human PD-1 antibody,referred to as MIL75 in the article)to determine the template for antibody design and library construction.We identified a series of potential substitutions on the obtained template and constructed a virtual epitope-targeted antibody library based on the physicochemical properties and each possible location of the assigned key residues.The virtual antibody libraries were displayed on the surface of mammalian cells as the antigen-binding fragments of full-length immunoglobulin G.Then,we used flow cytometry and sequencing approaches to sort and screen the candidates.Finally,we obtained a novel anti-human PD-1 antibody named FV78.FV78 competitively recognized the PD-1 epitopes that interacted with MIL75 and possessed an affinity comparable to MIL75.Our results implied that FV78 possessed equivalent bioactivity in vitro and in vivo compared with MIL75,which highlighted the probability and prospect of FV78 becoming a new potential antibody therapy.Longlong Luo Shi Wang Xiaoling Lang Tingting Zhou Jing Geng Xinying Li Chunxia Qiao Jiannan Feng Beifen Shen Ming Lv Yan Li 2018Cellular & Molecular Immunology2018,15,2:4
5cAMP Modulates Macrophage Development by Suppressing M-CSF-Induced MAPKs Activation显示文摘M-CSF is a key cytokine in macrophage development by inducing MAPKs activation,and cAMP can inhibit MAPKs activation induced by inflammatory stimuli. To explore the effects of cAMP on M-CSF-induced MAPKs activation and on macrophage development,the model of bone marrow-derived murine macrophages (BMMs) was used. The effects of cAMP on M-CSF-induced MAPKs activation were analyzed by Western blotting assay,and the effects of cAMP on CD14 and F4/80 expression during macrophage development were examined by FACS analysis. Macrophage morphology showed the successful establishment of the model of macrophage development. Western blotting assay revealed that M-CSF activated ERK,JNK and p38 in both mature and immature macrophages,and cAMP inhibited M-CSF-induced ERK,JNK and p38 activation in a time-dependent manner. FACS analysis revealed that macrophage development was impaired with cAMP pretreatment. In conclusion,cAMP modulates macrophage development by suppressing M-CSF-induced MAPKs activation.Ning Zhu Jian Cui Chunxia Qiao Yan Li Yuanfang Ma Jiyan Zhang Beifen Shen 2008Cellular & Molecular Immunology2008,5,2:4
6Characterization of a Novel Anti-DR5 Monoclonal Antibody WD1 with the Potential to Induce Tumor Cell Apoptosis显示文摘TNF-related apoptosis-inducing ligand (TRAIL) is a TNF family member capable of inducing apoptosis. Death receptor 5 (DR 5) is a key receptor of TRAIL and plays an important role in TRAIL-induced apoptosis. To prepare monoclonal antibodies (mAbs) against DR5,cDNA encoding soluble DR5 (sDR5) was firstly amplified by reverse transcriptase-polymerase chain reaction (RT-PCR) with specific primers,and then inserted into a prokaryotic expression vector pET-30a. The recombinant plasmid was expressed in Escherichia coli strain BL21 (DE3),and sDR5 was purified by nickel affinity chromatography. As an antigen,sDR5 was used to immunize mice. Hybridomas secreting antibodies against sDR5 were identified. One positive clone was selected to produce antibody,WD1. ELISA and immunofluorescence demonstrated that WD1 could bind recombinant sDR5 and membrane-bound DR5 (mDR5) on Jurkat and Molt-4 cells. ATPLite assays showed that Jurkat and Molt-4 cells were sensitive to the antibody in a dose dependent manner. The Annexin V/PI assays and Giemsa's staining both showed that WD1 could induce Jurkat cell apoptosis efficiently. Transient transfection of 293T cells and indirect immunofluorescence assay demonstrated that mAb (WD1) couldn't cross-react with DR4. Our findings indicated that the novel antibody,WD1 could act as a direct agonist,bind DR5 characteristically,and initiate efficient apoptotic signaling and tumor regression. Thus,WD1 would be a leading candidate for potential cancer therapeutics.Jing Wang Zhou Lin Chunxia Qiao Ming Lv Ming Yu He Xiao Qingyang Wang Liyan Wang Jiannan Feng Beifen Shen Yuanfang Ma Yan Li 2008Cellular & Molecular Immunology2008,5,1:4
7Molecular Epidemiology of Porcine Circovirus Type 3 Infection in Swine Herds in China显示文摘Dear Editor,Porcine circovirus type 3(PCV3)is a new-emerging circovirus belonging to the genus Circovirus in the family Circoviridae in which PCV type 1(PCV1)and PCV type 2(PCV2)were well documented(Palinski et al.2017).PCV1 is a cell culture-derived virus and is considered to be nonpathogenic for swine,whereas PCV2 is the primary etiological agent of porcine circovirus-associatedXiangdong Li Chaolin Zhang Mingming Qiao Jiangsong Guo Guangyuan Xing Chunxia Jins Juan Wang Ming Sun Kegong Tian 2018Virologica Sinica2018,33,4:2
8Assessment of heavy metal pollution from a Fe-smelting plant in urban river sediments using environmental magnetic and geochemical methods显示文摘Chunxia Zhang Qingqing Qiao John D.A. Piper Baochun Huang 2011Environmental Pollution2011,,10:1
9Composition, sources, and potential toxicological significance of PAHs in the surface sediments of the Meiliang Bay, Taihu Lake, China显示文摘Min Qiao Chunxia Wang Shengbiao Huang Donghong Wang Zijian Wang 2005Environment International2005,,1:1
10Assessment of heavy metal pollution from a Fe-smelting plant in urban river sediments using environmental magnetic and geochemical methods 显示文摘Zhang Chunxia Qiao Qingqing John D A 2011Environmental Pollution2011,159,10:1
11Assessment of heavy metal pollution from a Fe-smelting plant in urban river sediments using environmental magnetic and geochemical methods显示文摘Zhang Chunxia Qiao Qingqing Piper John D A 2011Environmental Pollution2011,159,:1
12Composition, sources, and potential toxicological significance of PAHs in the surface sediments of the Meiliang Bay, Taihu Lake, China显示文摘Qiao Min Wang Chunxia Huang Shengbiao 2006Environment International2006,32,1:1
13Detection of melatonin and homocysteine simultaneously in ulcerative colitis显示文摘Moli Chen Qiao Mei Jianming Xu Chunxia Lu Haiming Fang Xiaochang Liu 2011Clinica Chimica Acta2011,,1:1
14Assessment of heavy metal pollution from a Fe-smelting plant in urban river sediments using environmental magnetic and geochemical methods显示文摘Chunxia Zhang Qingqing Qiao John D.A. Piper Baochun Huang 2011Environmental Pollution2011,,10:1
15Discrimi- nating sources of anthropogenic heavy metals in urban street dusts using magnetic and chemical methods显示文摘ZHANG Chunxia QIAO Qingqing APPEL E 2012Journal of Geo- chemical Exploration2012,,:1
16Detection of melatonin and homocysteine simultaneously in ulcerative colitis显示文摘Moli Chen Qiao Mei Jianming Xu Chunxia Lu Haiming Fang Xiaochang Liu 2011Clinica Chimica Acta2011,,1:1
17High-Affinity Decoy PD-1 Mutant Screened from an Epitope-Specific Cell Library显示文摘Immunotherapy with anti-programmed cell death protein-1(PD-1)/programmed cell death ligand-1(PDL1)monoclonal antibodies has become routine in the treatment of many kinds of human cancers,such as lung cancer,intestinal cancer,and melanoma.The PD-1/PD-L1 pathway inhibits T cell activation in the micro-environment,making it an attractive target against cancer.Wild-type(WT)PD-1 ectodomain has been shown to have difficulty blocking PD-1/PD-L1 mixture formation due to its low affinity.The present work uses three-dimensional(3D)crystal complex structures to analyze the interaction by which PD-1 binds to PD-L1 or PD-L2.It also reports on a theoretical study of the binding mode between PD-1 and its clinical antibody Opdivo.Based on the theoretical binding analysis of PD-1 and its ligands(i.e.,PD-L1 and PD-L2)or antibody(Opdivo),a small-content,epitope-oriented mammalian cell library was established for PD-1.After three rounds of cell sorting,the decoy PD-1 mutant 463,which presented a higher affinity than WT PD-1 to the PD-L1(the affinity has increased by almost three orders of magnitude)was screened out.It exhibited an inhibitory effect against PD-1 to prevent it from forming mixtures with PD-L1,which was similar to the effect of the commercial anti-PD-L1 antibody atezolizumab(ATE).The median effective concentration(EC50)value of the decoy mutant was 0.031 μg·mL^(-1) in comparison with 0.063 μg·mL^(-1) for ATE;both values were much lower than that of WT PD-1,at 2.571 μg·mL^(-1).The 463 decoy mutant reversed the inhibitory function of PD-1 in T cell activation;furthermore,10 mg·kg^(-1) of 463 inhibited about 75%of tumor growth in vivo in a MC38 transgenic xenograft mice model,which was similar to the activity of ATE.More interestingly,an even lower dose of 463(2 mg·kg^(-1))showed a better effect than 10 mg·kg^(-1) of WT PD-1.This work offers the decoy 463 with an improved curative effect,which holds potential to become a good option against PD-1/PD-L1-related cancers.Hao Liu Chunxia Qiao Naijing Hu Zhihong Wang Jing Wang Jiannan Feng Beifen Shen Yuanfang Ma Longlong Luo 2021Engineering2021,7,11:0
18A Novel Human Antibody,HF,against HER2/erb-B2 Obtained by a Computer-Aided Antibody Design Method显示文摘Fully human antibodies have minimal immunogenicity and safety profiles.At present,most potential antibody drugs in clinical trials are humanized or fully human.Human antibodies are mostly generated using the phage display method(in vitro)or by transgenic mice(in vivo);other methods include B lymphocyte immortalization,human–human hybridoma,and single-cell polymerase chain reaction.Here,we describe a structure-based computer-aided de novo design technology for human antibody generation.Based on the complex structure of human epidermal growth factor receptor 2(HER2)/Herceptin,we first designed six short peptides targeting the potential epitope of HER2 recognized by Herceptin.Next,these peptides were set as complementarity determining regions in a suitable immunoglobulin frame,giving birth to a novel anti-HER2 antibody named 'HF,'which possessed higher affinity and more effective anti-tumor activity than Herceptin.Our work offers a useful tool for the quick design and selection of novel human antibodies for basic mechanical research as well as for imaging and clinical applications in immune-related diseases,such as cancer and infectious diseases.Chunxia Qiao Ming Lv Xinying Li Xiaoling Lang Shouqin Lv Mian Long Yan Li Shusheng Geng Zhou Lin Beifen Shen Jiannan Feng 2021Engineering2021,7,11:0
19Low-level Control System of Data Acquisition显示文摘We have finished the low-level control system of data acquisition, which has been used to control temperature by vacuum group. The whole temperature control system is introduced before WDM device driver for Pci9112 is described.The following is sketch map of the whole control system.Zhang Chunxia, Qiao Weimin, Jing Lan and Liu Ning 2002近代物理研究所和兰州重离子加速器实验室年报:英文版2002,,1:0
20HIRFL-CSR Control System Progress显示文摘The control system architecture is divided into several parts and three levels. Level I: CPCI architecture for special control processing.Level II: Industrial computer, (PC and SUN SPARC). PCI Modules for general control processing. Level III: Micro-gateway + 31 application modules. The Gateway connects Ethernet to RS-485 and CANBUS or other field-Level II System Progress bus. Run real-time LINUX (NUT) for general control processing.Qiao Weimin, Jing Lan, Ma Yunhai, Gou Shizhe, Lin Jie, Liang Yihai, Liu Ning, Zhang Chunxia Wang Dan, Zhang Shuocheng, Meng Jian, Liu Junke and Zhang Changshuan 2002近代物理研究所和兰州重离子加速器实验室年报:英文版2002,,1:0
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