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21篇 您的检索式:作者名="Wenping Fan"
    题名 作者 年代 出处 被引量
1Promotion of spinosad biosynthesis by chromosomal integration of the Vitreoscilla hemoglobin gene in Saccharopolyspora spinosa显示文摘To promote spinosad biosynthesis by improving the limited oxygen supply during high-density fermentation of Saccharopolyspora spinosa, the open reading frame of the Vitreoscilla hemoglobin gene was placed under the control of the promoter for the erythromycin resistance gene by splicing using overlapping extension PCR. This was cloned into the integrating vector pSET152, yielding the Vitreoscilla hemoglobin gene expression plasmid pSET152EVHB. This was then introduced into S. spinosa SP06081 by conjugal transfer, and integrated into the chromosome by site-specific recombination at the integration site ΦC31 on pSET152EVHB. The resultant conjugant, S. spinosa S078-1101, was genetically stable. The integration was further confirmed by PCR and Southern blotting analysis. A carbon monoxide differential spectrum assay showed that active Vitreoscilla hemoglobin was successfully expressed in S. spinosa S078-1101. Fermentation results revealed that expression of the Vitreoscilla hemoglobin gene significantly promoted spinosad biosynthesis under normal oxygen and moderately oxygen-limiting conditions (P<0.01). These findings demonstrate that integrating expression of the Vitreoscilla hemoglobin gene improves oxygen uptake and is an effective means for the genetic improvement of S. spinosa fermentation.LUO YuShuang KOU XiaoXiao DING XueZhi HU ShengBiao TANG Ying LI WenPing HUANG Fan YANG Qi CHEN HanNa XIA LiQiu 2012Science China(Life Sciences)2012,55,2:14
2SHRIMP U-Pb Zircon Age of the Ka'erjiao Intrusion in the Sawur Region in West Junggar,Xinjiang显示文摘摘要:酸侵入在 Sawur 区域是普遍的, Xinjiang。Ka'erjiao 侵入主要由钠长石花岗石斑岩, K 长石花岗石斑岩, ivernite 和花岗石斑岩组成。在 Sawur 区域是在岩浆侵入和爆发之间的一个过渡产品, Ka'erjiao 侵入在未期被形成对开始晚含碳作为早二叠由标明日期的 SHRIMP U-Pb 锆石决定了,与 302.6ZHOU Taofa TAN Lugui FAN Yu YUAN Feng YANG Wenping HE Lixin YUE Shucang 2007Acta Geologica Sinica(English Edition)2007,81,2:9
3Tandem catalysis in electrochemical CO_(2) reduction reaction显示文摘Electrochemical CO_(2) reduction reaction(CO_(2)RR)is an attractive pathway for closing the anthropogenic carbon cycle and storing intermittent renewable energy by converting CO_(2) to valuable chemicals and fuels.The production of highly reduced carbon compounds beyond CO and formate,such as hydrocarbon and oxygenate products with higher energy density,is particularly desirable for practical applications.However,the productivity towards highly reduced chemicals is typically limited by high overpotential and poor selectivity due to the multiple electron-proton transfer steps.Tandem catalysis,which is extensively utilized by nature for producing biological macromolecules with multiple enzymes via coupled reaction steps,represents a promising strategy for enhancing the CO_(2)RR performance.Improving the efficiency of CO_(2)RR via tandem catalysis has recently emerged as an exciting research frontier and achieved significant advances.Here we describe the general principles and also considerations for designing tandem catalysis for CO_(2)RR.Recent advances in constructing tandem catalysts,mainly including bimetallic alloy nanostructures,bimetallic heterostructures,bimetallic core-shell nanostructures,bimetallic mixture catalysts,metal-metal organic framework(MOF)and metal-metallic complexes,metal-nonmetal hybrid nanomaterials and copper-free hybrid nanomaterials for boosting the CO_(2)RR performance are systematically summarized.The study of tandem catalysis for CO_(2)RR is still at the early stage,and future research challenges and opportunities are also discussed.Yating Zhu Xiaoya Cui Huiling Liu Zhenguo Guo Yanfeng Dang Zhanxi Fan Zhicheng Zhang Wenping Hu 2021Nano Research2021,14,12:5
4Application of contrast-enhanced ultrasound in minimally invasive ablation of benign thyroid nodules显示文摘Objective:This study aimed to investigate the application value of contrast-enhanced ultrasound(CEUS)before and after minimally invasive ablation procedures for benign thyroid nodule(s)(BTN).Methods:This prospective study included patients with BTNs scheduled to undergo ultrasound-guided minimally invasive ablation treatment.CEUS was performed before and after ablation(at 1 day,and 1,6,and 12 months after ablation).Changes in microvascular perfusion and the volume of BTNs were noted and assessed.Results:Sixty-two patients(62 BTNs),who underwent ablation procedures between June 2016 and August 2020,were included.All lesions were confirmed by biopsy,and histopathological results were obtained before ablation treatment.On preoperative CEUS,the lesions exhibited hyperenhancement(53.23%)or iso-enhancement(46.77%)during the arterial phase,and all lesions exhibited iso-enhancement in the venous and late phases.One day after ablation,none of the BTNs exhibited obvious enhancement on CEUS.One(1.61%)lesion was retreated due to a nodule-like enhancement area detected by CEUS at the 6-month follow-up.The mean nodular volume reduction rate(VRR)at 1,6,and 12 months follow-up demonstrated no significant difference between the two ablation groups(microwave ablation versus radiofrequency ablation).Twelve months after ablation,the mean(±SD)VRR of all BTNs was 60.3±10.3%.Conclusion:CEUS helped guide treatment decisions for BTNs before ablation treatment.Moreover,it could also be used to accurately and noninvasively evaluate treatment efficacy.Jiaying Cao Peili Fan Feihang Wang Shuainan Shi Lingxiao Liu Zhiping Yan Yi Dong Wenping Wang 2022Journal of Interventional Medicine2022,5,1:3
5Aggf1 attenuates hepatic inflammation and activation of hepatic stellate cells by repressing Ccl2 transcription显示文摘Liver injury represents a continuum of pathophysiological processes involving a complex interplay between hepatocytes, macrophages, and hepatic stellate cells. The mechanism whereby these intercellular interactions contribute to liver injury and fibrosis is not completely understood. We report here that angiogenic factor with G patch and FHA domains 1(Aggfl) was downregulated in the livers of cirrhotic patients compared to healthy controls and in primary hepatocytes in response to carbon tetrachloride(CC14) stimulation. Overexpression of Aggfl attenuated macrophage chemotaxis. Aggfl interacted with NF-κB to block its binding to the Ccl2 gene promoter and repressed Ccl2 transcription in hepatocytes. Macrophages cultured in the conditioned media collected from Aggfloverexpressing hepatocytes antagonized HSC activation. Taken together, our data illustrate a novel role for Aggfl in regulating hepatic inflammation and provide insights on the development of interventional strategies against cirrhosis.Wenping Xu Sheng Zeng Min Li Zhiwen Fan Bisheng Zhou 2017The Journal of Biomedical Research2017,31,5:2
6A branched dihydrophenazine-based polymer as a cathode material to achieve dual-ion batteries with high energy and power density显示文摘Organic electrode materials have exhibited good electrochemical performance in batteries,but their voltages and rate capabilities still require improvement to meet the increasing demand for batteries with high energy and power density.Herein,we design and synthesize a branched dihydrophenazine-based polymer(p-TPPZ)as a cathode material for dual-ion batteries(DIBs)through delicate molecular design.Compared with the linear dihydrophenazine-based polymer(p-DPPZ,with a theoretical capacity of 209 mAh g^(−1)),p-TPPZ possessed a higher theoretical capacity of 233 mAh g^(−1)and lower highest occupied molecular orbital energy levels,which resulted in a high actual capacity(169.3 mAh g^(−1)at 0.5 C),an average discharge voltage of 3.65 V(vs.Li+/Li)and a high energy density(618.2 Wh kg^(−1),based on the cathode materials).The branched structure of p-TPPZ led to a larger specific surface area than that of p-DPPZ,which was beneficial for the electrolyte infiltration and fast ionic transport,contributing to the high power density.Due to the fast reaction kinetics,even at a power density of 23,725 W kg^(−1)(40 C),the energy density still reached 474.5 Wh kg^(−1).We also made a detailed investigation of the p-TPPZ cathode’s charge storage mechanism.This work will stimulate the further molecular design to develop organic batteries with both high energy and power density.Shuaifei Xu Huichao Dai Shaolong Zhu Yanchao Wu Mingxuan Sun Yuan Chen Kun Fan Chenyang Zhang Chengliang Wang Wenping Hu 2021eScience2021,1,1:2
72020 Roadmap on gas-involved photo-and electro-catalysis显示文摘Green reactions not only provide us chemical products without any pollution,but also offer us the viable technology to realize difficult tasks in normal conditions.Photo-,photoelectro-,and electrocatalytic reactions are indeed powerful tools to help us to embrace bright future.Especially,some gas-involved reactions are extremely useful to change our life environments from energy systems to liquid fuels and cost-effective products,such as H2 evolution(H2 production),02 evolution/reduction,CO2 reduction,N2 reduction(or N2 fixation) reactions.We can provide fuel cells clean H2 for electric vehicles from H2 evolution reaction(HER),at the same time,we also need highly efficient 02 reduction reaction(ORR) in fuel cells for improving the reaction kinetics.Moreover,we can get the clean oxidant O2 from water through O2 evolution reaction(OER),and carry out some reactions without posing any pollution to reaction systems.Furthermore,we can translate the greenhouse gas CO2 into useful liquid fuels through CO2 reduction reaction(CRR).Last but not the least,we can get ammonia from N2 reduction reaction(NRR),which can decrease energy input compared to the traditional Hubble process.These reactions,such as HER,ORR,OER,CRR and NRR could be realized through solar-,photoelectro-and electro-assisted ways.For them,the catalysts used play crucial roles in determining the efficiency and kinds of products,so we should consider the efficiency of catalysts.However,the cost,synthetic methods of catalysts should also be considered.Nowadays,significant progress has been achieved,however,many challenges still exist,reaction systems,catalysts underlying mechanisms,and so on.As extremely active fields,we should pay attention to them.Under the background,it has motivated us to contribute with a roadmap on ’GasInvolved Photo-and Electro-Catalysis’.Yulu Yang Yang Tang Haomin Jiang Yongmei Chen Pingyu Wan Maohong Fan Rongrong Zhang Sana Ullah Lun Pan Ji-Jun Zou Mengmeng Lao Wenping Sun Chao Yang Gengfeng Zheng Qiling Peng Ting Wang Yonglan Luo Xuping Sun Alexander S.Konev Oleg V.Levin Panagiotis Lianos Zhuofeng Hu Zhurui Shen Qinglan Zhao Ying Wang Nadia Todorova Christos Trapalis Matthew V.Sheridan Haipeng Wang Ling Zhang Songmei Sun Wenzhong Wang Jianmin Ma 2019Chinese Chemical Letters2019,30,12:1
8Novel Combination Therapy for Triple-Negative Breast Cancer based on an Intelligent Hollow Carbon Sphere显示文摘Triple-negative breast cancer(TNBC)is a subtype of breast cancer with high mortality,and the efficacy of monotherapy for TNBC is still disappointing.Here,we developed a novel combination therapy for TNBC based on a multifunctional nanohollow carbon sphere.This intelligent material contains a superadsorbed silicon dioxide sphere,sufficient loading space,a nanoscale hole on its surface,a robust shell,and an outer bilayer,and it could load both programmed cell death protein 1/programmed cell death ligand 1(PD-1/PD-L1)small-molecule immune checkpoints and small-molecule photosensitizers with excellent loading contents,protect these small molecules during the systemic circulation,and achieve accumulation of them in tumor sites after systemic administration followed by the application of laser irradiation,thereby realizing dual attack of photodynamic therapy and immunotherapy on tumors.Importantly,we integrated the fasting-mimicking diet condition that can further enhance the cellular uptake efficiency of nanoparticles in tumor cells and amplify the immune responses,further enhancing the therapeutic effect.Thus,a novel combination therapy“PD-1/PD-L1 immune checkpoint blockade+photodynamic therapy+fasting-mimicking diet”was developed with the aid of our materials,which eventually achieved a marked therapeutic effect in 4T1-tumor-bearing mice.The concept can also be applied to the clinical treatment of human TNBC with guiding significance in the future.Yue Yin Yaping Yan Biao Fan Wenping Huang Jie Zhang Hai-Yan Hu Xiaoqiong Li Dongbin Xiong Shu-Lei Chou Yao Xiao Hai Wang 2023Research2023,,4:1
9Prediction of nitrogen release from sigmoid-type controlled release fertilizers in greenhouse production of strawberry and cucumber显示文摘Dear Editor,The increased demand for economic and environmental benefits with the application of controlled release fertilizers(CRFs)has prompted the need for simple and viable prediction of controlled nitrogen release(CNR).Sigmoid pattern CRFs(SCRFs)has different release mechanisms and coating processes from parabolic pattern CRFs(PCRFs).The CNR rate of an SCRF can be very slow at low temperatures;much more time is needed to release the same quantity of nutrients as conventional fertilizers.However,the opposite isQiang Xiao Xiaohui Fan Xiaohui Ni Lixia Li Xinpeng Xu Wenping Yi 2017Science China(Life Sciences)2017,60,9:1
10Efficacy of contrast-enhanced ultrasound-guided percutaneous core needle biopsy in anterior mediastinal masses显示文摘Objective:To evaluate the efficacy and safety of percutaneous core needle biopsy(PCNB)using ultrasound(US)-guided and contrast-enhanced ultrasound(CEUS)-guided procedures for anterior mediastinal masses(AMMs).Methods:In total,284 consecutive patients(166 men,118 women;mean age,43.0±18.4 years)who underwent PCNB for AMMs were enrolled.Patients were divided into the US-guided group(n=133)and the CEUS-guided group(n=151).PCNB was performed using a core needle(16-gauge or 18-gauge).Internal necrosis,diagnostic yield,and diagnostic accuracy were compared between the two groups.Results:The predominant final diagnosis of the cases in this study was thymoma(29.7%),lymphoma(20.5%),thymic carcinoma(13.3%),and germ cell tumour(13.3%),respectively.There was no significant difference in patient age,sex,number of percutaneous biopsies,or display rate of internal necrosis on conventional US between the two groups.The rate of internal necrosis of the lesions was significantly higher after contrast agent injection(72.2%vs.41.7%;P<0.001).The CEUS-guided group had a higher diagnostic yield than the US-guided group(100%vs.89.5%,P<0.001).There was no significant difference between the diagnostic accuracy of the CEUSguided and US-guided groups(97.3%vs.97.4%;P=1.000).None of the patients experienced adverse reactions or complications after US-guided or CEUS-guided PCNB.Conclusions:CEUS-guided PCNB can improve the diagnostic yield by optimizing the biopsy procedure.Peili Fan Jiaying Cao Yunjie Jin Hong Han Wenping Wang Huixiong Xu Zhengbiao Ji 2022Journal of Interventional Medicine2022,5,3:1
11Development of a pyrF-based counterselectable system for targeted gene deletion in Streptomyces rimosus显示文摘Streptomyces produces many valuable and important biomolecules with clinical and pharmaceutical applications.The development of simple and highly efficient gene editing tools for genetic modification of Streptomyces is highly desirable.In this study,we developed a screening system for targeted gene knockout using a uracil auxotrophic host(ΔpyrF)resistant to the highly toxic uracil analog of 5-fluoroorotic acid(5-FOA)converted by PyrF,and a non-replicative vector pKC1132-pyrF carrying the complemented pyrF gene coding for orotidine-5'-phosphate decarboxylase.The pyrF gene acts as a positive selection and counterselection marker for recombinants during genetic modifications.Single-crossover homologous integration mutants were selected on minimal medium without uracil by reintroducing pyrF along with pKC1132-pyrF into the genome of the mutantΔpyrF at the targeted locus.Double-crossover recombinants were generated,from which the pyrF gene,plasmid backbone,and targeted gene were excised through homologous recombination exchange.These recombinants were rapidly screened by the counterselection agent,5-FOA.We demonstrated the feasibility and advantage of using this pyrF-based screening system through deleting the otcR gene,which encodes the cluster-situated regulator that directly activates oxytetracycline biosynthesis in Streptomyces rimosus M4018.This system provides a new genetic tool for investigating the genetic characteristics of Streptomyces species.Yiying YANG Qingqing SUN Yang LIU Hanzhi YIN Wenping YANG Yang WANG Ying LIU Yuxian LI Shen PANG Wenxi LIU Qian ZHANG Fang YUAN Shiwen QIU Jiong LI XuefengWANG Keqiang FAN Weishan WANG Zilong LI Shouliang YIN 2021Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2021,22,5:0
12Evaluation of Attending Medical Teams and Their Impact on the DRG Components of Cholecystectomy显示文摘Objective:This study assessed the role of the attending medical team in the cost control of the cholecystectomy DRG components.Methods:The association between team structure,workflow,and treatment outcomes was analyzed using a mixed-methods approach combining quantitative data and qualitative interviews from 628 patients.Results:Inter-professional teamwork significantly affected length of stay,treatment costs,and recurrence rates,with experienced teams performing better in terms of emergency response and collaborative efficiency.Patient satisfaction was generally high,indicating that good teamwork enhances treatment outcomes.Significance:The study highlights the importance of optimizing team configuration to improve the quality,efficiency,and cost control of healthcare.Qi Zhang Chuanyu Chen Yan Wang Huachen Fan Wenping Sun Jing Deng 2024Journal of Clinical and Nursing Research2024,8,1:0
13Controlled growth of Mo2C pyramids on liquid Cu surface显示文摘Precise spatial control of 2D materials is the key capability of engineering their optical,electronic,and mechanical properties.However,growth of novel 2D Mo2C on Cu surface by chemical vapor deposition method was revealed to be seed-induced 2D growth,limiting further synthesis of complex Mo2C spatial structures.In this research,we demonstrate the controlled growth of Mo2C pyramids with numerous morphologies,which are characterized with clear terraces within the structures.The whole evolution for Mo2C pyramids in the coursed of CVD process has been detected,posing significant potential in probing growth mechanism.The formation of the Mo2C pyramids arises from the supersaturation-induced nucleation and concentration-gradient driven diffused growth of a new Mo2C layer on the edged areas of intrinsic ones,as supported by STEM imaging.This work provides a novel Mo2C-based pyramid structure and further reveals a sliding growth mechanism,which could offer impetus for the design of new 3D spatial structures of Mo2C and other 2D materials.Yixuan Fan Le Huang Dechao Geng Wenping Hu 2020Journal of Semiconductors2020,41,8:0
14Control Effects of Different Agents on Tobacco Mosaic Virus Disease显示文摘[Objectives] This study was conducted to screen out suitable agents for controlling tobacco mosaic virus disease and the best control period in Zhangzhou tobacco area, providing a theoretical basis for the control of virus diseases, thereby improving the quality of flue-cured tobacco and the income of tobacco farmers. [Methods] The effects on tobacco mosaic virus disease under the interaction between different agents and different application periods were investigated. The incidence of tobacco mosaic virus disease was investigated, and its control effect was analyzed. [Results] Different agents and different application periods had different control effects on tobacco mosaic virus disease. The incidence of tobacco mosaic virus disease: At 30 and 45 d after transplanting, the incidences of A2B1 treatment were the lowest, at 0.85%, 1.71%, respectively;and at 60 d after transplanting, the incidence of A3B1 treatment was the lowest, only 10.68%. The control effect: At 30 and 45 d after transplanting, A2B1 treatment had better control effects, reaching 79.39% and 73.06%, respectively. [Conclusions] 3% hypersensitive protein sprayed at 1 d before transplanting and 7 and 15 d after transplanting achieved the best effect, followed by 10% ningnanmycin sprayed at 1 d before transplanting and 7 and 15 d after transplanting. In tobacco production, it is recommended to apply 1 000 times dilution of 3% supersensitive protein microgranules for three times(at 1 d before transplanting and 7 and 15 d after transplanting), which can effectively prevent tobacco mosaic virus disease.Weiwei OUYANG Zhengyang ZHANG Qiuzan ZHONG Changyou SHEN Runsheng LIU Xianyi XIAO Qinggen YANG Wenping RAO Yi LIU Chenggen FAN Hai LIAN Lifang XIE 2019Agricultural Biotechnology2019,8,6:0
15Safety analysis of COVID-19 vaccines in liver transplant recipients:a two-center study显示文摘Up to know,product information for COVID-19 mRNA vaccines do not include their use in patients receiving immunosuppressive medication,since they were not included in trials(1).For the BNT162b2 mRNA vaccine,one case of otherwise totally asymptomatic elevations of alanine aminotransferase(ALT),aspartate aminotransferase(AST),alkaline phosphatase(ALP)andγ-glutamyl transpeptidase(GGT)serum concentrations in a liver transplant recipient has been reported after the first injection(2).In the present retrospective study,we present safety outcomes of COVID-19 vaccinations in 56 liver transplant patients from two Chinese centers vaccinated with the domestic PiCoVacc,BBIBP-CorV and ZF2001 vaccines.Thirty vaccinated physicians from the Hepatopancreatobiliary Center of Beijing Tsinghua Changgung Hospital served as control,from which 1 participant received an Ad5-nCoV vaccine.The study deadline was 2021-10-31.The observation period for adverse reactions,such as muscle pain and fatigue was 1 week,while for laboratory examinations such as liver function the follow-up period was 1 month.Rui Tang Chao Li Guangdong Wu Xuan Tong Lihan Yu Huayuan Hao Rui Liao Yucheng Hou Jun Li Wenping Zhao Tieyan Fan Leida Zhang Qian Lu 2022Hepatobiliary Surgery and Nutrition2022,11,1:0
16A comprehensive framework for seasonal controls of leaf abscission and productivity in evergreen broadleaved tropical and subtropical forests显示文摘Relationships among productivity,leaf phenology,and seasonal variation in moisture and light availability are poorly understood for evergreen broadleaved tropical/subtropical forests,which contribute 25% of terrestrial productivity.On the one hand,as moisture availability declines,trees shed leaves to reduce transpiration and the risk of hydraulic failure.On the other hand,increases in light availability promote the replacement of senescent leaves to increase productivity.Here,we provide a comprehensive framework that relates the seasonality of climate,leaf abscission,and leaf productivity across the evergreen broadleaved tropical/subtropical forest biome.The seasonal correlation between rainfall and light availability varies from strongly negative to strongly positive across the tropics and maps onto the seasonal correlation between litterfall mass and productivity for 68 forests.Where rainfall and light covary positively,litterfall and productivity also covary positively and are always greater in the wetter sunnier season.Where rainfall and light covary negatively,litterfall and productivity are always greater in the drier and sunnier season if moisture supplies remain adequate;otherwise productivity is smaller in the drier sunnier season.This framework will improve the representation of tropical/subtropical forests in Earth system models and suggests how phenology and productivity will change as climate change alters the seasonality of cloud cover and rainfall across tropical/subtropical forests.Xueqin Yang Jianping Wu Xiuzhi Chen Philippe Ciais Fabienne Maignan Wenping Yuan Shilong Piao Song Yang Fanxi Gong Yongxian Su Yuhang Dai Liyang Liu Haicheng Zhang Damien Bonal Hui Liu Guixing Chen Haibo Lu Shengbiao Wu Lei Fan Pierre Gentine SJoseph Wright 2021The Innovation2021,2,4:0
17Higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficit显示文摘It has been long established that the terrestrial vegetation in spring has stronger photosynthetic capability than in autumn.However,this study challenges this consensus by comparing photosynthetic capability of terrestrial vegetation between the spring and autumn seasons based on measurements of 100 in situ eddy covariance towers over global extratropical ecosystems.At the majority of these sites,photosynthetic capability,indicated by light use efficiency(LUE)and apparent quantum efficiency,is significantly higher in autumn than in spring,due to lower atmosphere vapor pressure deficit(VPD)at the same air temperature.Seasonal VPD differences also substantially explain the interannual variability of the differences in photosynthetic capability between spring and autumn.We further reveal that VPD in autumn is significantly lower than in spring over 74.14% of extratropical areas,based on a global climate dataset.In contrast,LUE derived from a data-driven vegetation production dataset is significantly higher in autumn in over 61.02% of extratropical vegetated areas.Six Earth system models consistently projected continuous larger VPD values in spring compared with autumn,which implies that the impacts on vegetation growth will long exist and should be adequately considered when assessing the seasonal responses of terrestrial ecosystems to future climate conditions.Yawen Wang Wenfang Xu Wenping Yuan Xiuzhi Chen Bingwei Zhang Lei Fan Bin He Zhongmin Hu Shuguang Liu Wei Liu Shilong Piao 2021The Innovation2021,2,4:0
18Development and Evaluation of a Promising Biomarker for Diagnosis of Latent and Active Tuberculosis Infection显示文摘Background:Diagnosing latent tuberculosis(TB)infection(LTBI)and active TB(ATB)is crucial for preventing disease progression and transmission.However,current diagnostic tests have limitations in terms of accuracy and sensitivity,making it challenging to diagnose these different infection states.Therefore,this study intends to develop a promising biomarker for LTBI and ATB diagnosis to overcome the limitations of the current diagnostic tests.Methods:We developed a novelmultiepitope-based diagnostic biomarker(MEBDB)fromLTBI region of differentiation antigens using bioinformatics and immunoinformatics.Immune responses induced byMEBDM were detected using enzyme-linked immunosorbent spot and cytometric bead assays.This study was conducted from April 2022 to December 2022 in the SeniorDepartment of Tuberculosis at the 8thMedical Center of PLA General Hospital,China.Blood samples were collected from participants with ATB,individuals with LTBI,and healthy controls(HCs).The diagnostic efficacy of MEBDB was evaluated using receiver operating characteristic curves.Results:A novel MEBDB,designated as CP19128P,was generated.CP19128P comprises 19 helper T lymphocyte epitopes,12 cytotoxic T lymphocyte epitopes,and 8 B-cell epitopes.In silico simulations demonstrated that CP19128P possesses strong affinity for Toll-like receptors and elicits robust innate and adaptive immune responses.CP19128P generated significantly higher levels of tumor necrosis factor(TNF-α),interleukin 4(IL-4),and IL-10 in ATB patients(n=7)and LTBI(n=8)individuals compared with HCs(n=62)(P<0.001).Moreover,CP19128P-induced specific cytokines could be used to discriminate LTBI and ATB from healthy subjects with high sensitivity and specificity.Combining IL-2 with IL-4 or TNF-α could differentiate LTBI from HCs(the area under the receiver operating characteristic curve[AUC],0.976[95% confidence interval[CI],0.934-1.000]or 0.986[0.956-1.000]),whereas combining IL-4 with IL-17A or TNF-α could differentiate ATB from HCs(AUC,0.887[0.782-0.993]or 0.984[0.958-1.000]).Conclusions:Our study revealed that CP19128P is a potential MEBDBfor the diagnosis of LTBI andATB.Our findings suggest a promising strategy for developing novel,accurate,and sensitive diagnostic biomarkers and identifying new targets for TB diagnosis and management.Cong Peng Fan Jiang Yinping Liu Yong Xue Peng Cheng Jie Wang Liang Wang Wenping Gong 2024Infectious Diseases & Immunity2024,4,1:0
19A method for predicting the water-flowing fractured zone height based on an improved key stratum theory显示文摘In the process of using the original key stratum theory to predict the height of a water-flowing fractured zone(WFZ),the influence of rock strata outside the calculation range on the rock strata within the calculation range as well as the fact that the shape of the overburden deformation area will change with the excavation length are ignored.In this paper,an improved key stratum theory(IKS theory)was proposed by fixing these two shortcomings.Then,a WFZ height prediction method based on IKS theory was established and applied.First,the range of overburden involved in the analysis was determined according to the tensile stress distribution range above the goaf.Second,the key stratum in the overburden involved in the analysis was identified through IKS theory.Finally,the tendency of the WFZ to develop upward was determined by judging whether or not the identified key stratum will break.The proposed method was applied and verified in a mining case study,and the reasons for the differences in the development patterns between the WFZs in coalfields in Northwest and East China were also fully explained by this method.Jianghui He Wenping Li Kaifang Fan Wei Qiao Qiqing Wang Liangning Li 2023International Journal of Mining Science and Technology2023,33,1:0
20The Research on Modeling and Simulation of Direct-sequence Spread Spectrum Communications System Based on Software Radio显示文摘Dingxue Wu Feng Xue Wenping Fan Xiaohong Xiao 2006通讯和计算机(中英文版)2006,3,8:0
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