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Association between the Khorana risk score and all-cause mortality in Japanese patients with gastric and colorectal cancer: A retrospective cohort study
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作者 yu-feng zhang Guo-Dong Wang +3 位作者 Min-Guang Huang Zhao-Qi Qiu Jia Si Mao-Yi Xu 《World Journal of Gastrointestinal Oncology》 SCIE 2023年第10期1784-1795,共12页
BACKGROUND The Khorana risk score(KRS)has poor predictive value for cancer-associated thrombosis in a single tumor type but is associated with early all-cause mortality from cancer.Evidence for the association between... BACKGROUND The Khorana risk score(KRS)has poor predictive value for cancer-associated thrombosis in a single tumor type but is associated with early all-cause mortality from cancer.Evidence for the association between KRS and all-cause mortality in Japanese patients with gastric and colorectal cancer is limited.AIM To investigate whether KRS was independently related to all-cause mortality in Japanese patients with gastric and colorectal cancer after adjusting for other covariates and to shed light on its temporal validity.METHODS Data from Dryad database were used in this study.Patients in the Gastroen-terology Department of Sapporo General Hospital,Sapporo,Japan,were enrolled.The starting and ending dates of the enrollment were January 1,2008 and January 5,2015,respectively.The cutoff date for follow-up was May 31,2016.The inde-pendent and dependent(target)variables were the baseline measured using the KRS and final all-cause mortality,respectively.The KRS was categorized into three groups:Low-risk group(=0 score),intermediate-risk group(1-2 score),and high-risk group(≥3 score).RESULTS Men and patients with Eastern Cooperative Oncology Group Performance Status(ECOG PS)≥2 displayed a higher 2-year risk of death than women and those with ECOG PS 0-1 in the intermediate/high risk group for KRS.The higher the score,the higher the risk of early death;however,the relevance of this independent prediction decreased with longer survival.The overall survival of each patient was recorded via real-world follow-up and retrospective observations,and this study yielded the overall relationship between KRS and all-cause mortality.CONCLUSION The prechemotherapy baseline of KRS was independently associated with all-cause mortality within 2 years;however,this independent predictive relationship weakened as survival time increased. 展开更多
关键词 Gastric cancer Colorectal cancer Khorana risk score All-cause mortality Cancer-associated thrombosis Overall survival
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Bibliometric analysis of Wendan decoction research based on the Web of Science database
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作者 yu-feng zhang Ting Liu +1 位作者 Zhong-Ping Pu Hai-Bing Hua 《Medical Data Mining》 2023年第3期10-18,共9页
Objective:With the development of Wendan decoction(WDD)and more literature on the research of WDD,we aimed to present an insight into WDD research using bibliometric analysis.Methods:We retrieved data from the Web of ... Objective:With the development of Wendan decoction(WDD)and more literature on the research of WDD,we aimed to present an insight into WDD research using bibliometric analysis.Methods:We retrieved data from the Web of Science database from 2008 to 2022.Publication trends were examined using data from journals,authors,institutions,international collaborations,citations,and keywords from the online analytical platform Bibliometric(http://bibliometric.com).Results:Over the years,an increase in the use of keywords,including depression,insomnia,Alzheimer’s disease,schizophrenia,hippocampus,and insomnia,was observed.The outcomes of the analysis revealed that topics related to WDD have become increasingly prevalent in the last five years,and the internationally recognized application of WDD is mainly neuropsychiatric diseases.Conclusion:We exhibited WDD research progress by identifying and evaluating WDD-focused articles.Our analysis revealed the trend of the topics from 2008 to 2022,which can assist scholars in identifying future trends. 展开更多
关键词 Bibliometric analysis neuropsychiatric diseases Web of Science Wendan decoction
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元素偏析和相分布控制的激光增材制造Ti6Al4V合金的电化学溶解与钝化 被引量:2
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作者 于君 覃拓 +5 位作者 林鑫 王俊杰 张宇锋 王诗尧 杨静怡 黄卫东 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2021年第12期3739-3751,共13页
采用Tafel极化、恒电位极化和交流阻抗测试研究激光增材制造Ti6Al4V合金的电化学溶解和钝化。结果表明,与退火处理相比,固溶时效(STA)加剧元素的微观偏析,导致不同样品中相的Al和V含量不同。由元素偏析导致的热力学不稳定性决定富Al或富... 采用Tafel极化、恒电位极化和交流阻抗测试研究激光增材制造Ti6Al4V合金的电化学溶解和钝化。结果表明,与退火处理相比,固溶时效(STA)加剧元素的微观偏析,导致不同样品中相的Al和V含量不同。由元素偏析导致的热力学不稳定性决定富Al或富V条件对相的电化学溶解行为有显著影响。亚稳钝化过程中的溶解速率是由生成膜的稳定性控制,该稳定性受相分布的影响显著,尤其是难溶解相。在过钝化区中合金表面不能产生致密的钝化膜,因此,相的溶解速率与活化过程排序一致。与退火试样相比,STA试样具有较高的溶解速率,有利于Ti6Al4V的电解加工。 展开更多
关键词 激光增材制造 电化学溶解行为 显微组织特征 电流效率 TI6AL4V合金
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Single nucleotide polymorphisms in the CDH17 gene of colorectal carcinoma 被引量:2
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作者 Ren-Yin Chen Juan-Juan Cao +4 位作者 Juan Chen Jian-Ping Yang Xiao-Bo Liu Guo-Qiang Zhao yu-feng zhang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第48期7251-7261,共11页
AIM:To investigate the relationship between c.343A>G and c.2216A>C polymorphism sites in the CDH17 gene and colorectal carcinoma.METHODS:Ninety-three non-consanguineous colorectal carcinoma patients admitted to ... AIM:To investigate the relationship between c.343A>G and c.2216A>C polymorphism sites in the CDH17 gene and colorectal carcinoma.METHODS:Ninety-three non-consanguineous colorectal carcinoma patients admitted to the Department of Oncology at the First Affiliated Hospital of Zhengzhou University were included in this study.Ninety-three peripheral venous blood samples,of approximately one milliliter from each patient,were collected betweenDecember 2009 and August 2010.The genomic DNA of these peripheral venous blood samples were extracted and purified using a Fermentas Genomic DNA Purification Kit(Fermentas,CA) according to the manufacturer' s protocol.The single nucleotide polymorphisms(SNPs) of the liver-intestine cadherin(CDH17) gene c.343A>G and c.2216A>C were determined by the polymerase chain reaction-single strand conformation polymorphism method(PCR-SSCP) in 93 peripheral venous blood samples from patients suffering with colorectal carcinoma.Typical samples that showed different migration bands in SSCP were confirmed by sequencing.Directed DNA sequencing was used to check the correctness of the genotype results from the PCR-SSCP method.RESULTS:There was a significant association between the c.2216 A>C SNPs of the CDH17 gene and the tumor-node-metastasis(TNM) grade,as well as with lymph node status,in 93 peripheral venous blood samples from colorectal carcinoma patients.The genotype frequencies of A/C,A/A,and C/C were 12.90%,33.33% and 53.76%,respectively.There was a significant correlation between lymph node metastasis,TNM grade,and the genotype distribution(P < 0.05).The C/C genotype raised the risk of lymph node metastasis and the TNM grade.There was a significant difference in the TNM grade and lymph node metastasis between the A/A and C/C genotypes(P = 0.003 and P = 0.013,respectively).Patients with colorectal carcinoma carrying the C allele tended to have a higher risk of lymph node metastasis and have a higher TNM grade.The difference between the TNM grades,as well as the lymph node metastasis of the two alleles,was statistically significant(P < 0.01).CONCLUSION:The SNPs of the CDH17 gene c.2216 A>C might be clinically important in the prognosis of colorectal carcinoma. 展开更多
关键词 单核苷酸多态性 基因组DNA 大肠癌 PCR-SSCP 单链构象多态性分析 基因型频率 DNA测序 血液样本
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盐酸体系中As-Sb合金的电结晶形核/生长机理(英文) 被引量:2
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作者 曹华珍 张煜峰 +2 位作者 王倩倩 伍廉奎 郑国渠 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2017年第10期2291-2299,共9页
通过循环伏安(CV)测试和电流暂态曲线研究玻碳电极(GC)表面As-Sb合金的初期电结晶行为。绘制无因次电流暂态曲线,发现As-Sb合金的初期电结晶形核/生长过程遵循受扩散控制的三维形核模型。通过对电流暂态曲线分析计算得到相关形核参数。... 通过循环伏安(CV)测试和电流暂态曲线研究玻碳电极(GC)表面As-Sb合金的初期电结晶行为。绘制无因次电流暂态曲线,发现As-Sb合金的初期电结晶形核/生长过程遵循受扩散控制的三维形核模型。通过对电流暂态曲线分析计算得到相关形核参数。重点研究Sb(III)浓度对形核过程的影响。定量分析结果表明,Sb(III)能加快As-Sb合金的形核速度,从而使沉积物形貌由颗粒状结构转变为致密的层状结构。 展开更多
关键词 As-Sb合金 电沉积 形核
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Allogenic tooth transplantation using 3D printing: A case report and review of the literature 被引量:2
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作者 Hu-Di Xu Richard J Miron +1 位作者 Xiao-Xin zhang yu-feng zhang 《World Journal of Clinical Cases》 SCIE 2019年第17期2587-2596,共10页
BACKGROUND The history of allogenic tooth transplantation can be traced back to the 16th century.Although there have been many successful cases,much needs to be better understood and researched prior to the technique ... BACKGROUND The history of allogenic tooth transplantation can be traced back to the 16th century.Although there have been many successful cases,much needs to be better understood and researched prior to the technique being translated to everyday clinical practice.CASE SUMMARY In the present report,we describe a case of allogenic tooth transplantation between a mother and her daughter.The first left maxillary molar of the mother was diagnosed with residual root resorption and needed to be extracted.The 3rd molar of the daughter was used as a donor tooth.Prior to transplantation,a 3D printing system was introduced to fabricate an individualized reamer drill specifically designed utilizing the donor’s tooth as a template.The specific design of our 3D printed bur allowed for the recipient site to better match the donor tooth.With the ability to 3D print in layers,even the protuberance of the root can be matched and 3D printed,thereby minimizing unnecessary bone loss.CONCLUSION Our study is a pioneering case combining 3D printing with allogenic tooth transplantation,which could be able to minimize unnecessary bone loss and improve the implant stability.This article aims to enhance our understanding of allogenic tooth transplantation and 3D printing,and may potentially lead to tooth transplantation being utilized more frequently - especially since transplantations are so commonly utilized in many other fields of medicine with high success rates. 展开更多
关键词 TRANSPLANTATION ALLOGRAFTS DENTAL IMPLANTS 3D PRINTING Case report
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Avalanching patterns of irregular sand particles in continual discrete flow 被引量:1
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作者 韩韧 张宇峰 +3 位作者 李然 陈泉 冯靖禹 孔平 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第2期309-314,共6页
We investigate the flow patterns of irregular sand particles under avalanching mode in a rotating drum by using the spatial filtering velocimetry technique.By exploring the variations of velocity distribution of granu... We investigate the flow patterns of irregular sand particles under avalanching mode in a rotating drum by using the spatial filtering velocimetry technique.By exploring the variations of velocity distribution of granular flow,we find a type of avalanching pattern of irregular sand particles which is similar to that of spherical particles flow.Due to the fact that the initial position of avalanche in this pattern locates at the middle of the drum and the avalanche propagates toward the edge area gradually,we named it as mid-to-edge avalanching pattern.Furthermore,we find another avalanching pattern which slumps from the edge and propagates toward the opposite edge of the flow surface,named as edge-to-edge pattern.By analyzing the temporal and spatial characteristics of these two types of avalanching patterns,we discover that these two types of avalanche patterns are caused by that the avalanching particles constantly perturb the axial adjacent particles.Thus,the particles on the flow surface are involved in avalanching sequentially in order of the axial distance from the initial position. 展开更多
关键词 spatial FILTERING velocimetry(SFV)method avalanching pattern VELOCITY distribution IRREGULAR PARTICLES
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Pancreatitis in hand-foot-and-mouth disease caused byenterovirus 71 被引量:1
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作者 yu-feng zhang Hui-Ling Deng +2 位作者 Jia Fu Yu zhang Jian-Qiang Wei 《World Journal of Gastroenterology》 SCIE CAS 2016年第6期2149-2152,共4页
Some viruses, including certain members of the enterovirus genus, have been reported to cause pancreatitis, especially Coxsackie virus. However, no case of human enterovirus 71(EV71) associated with pancreatitis has b... Some viruses, including certain members of the enterovirus genus, have been reported to cause pancreatitis, especially Coxsackie virus. However, no case of human enterovirus 71(EV71) associated with pancreatitis has been reported so far. We here report a case of EV71-induced hand-foot-and-mouth disease(HFMD) presenting with pancreatitis in a 2-year-old girl. This is the first report of a patient with acute pancreatitis in HFMD caused by EV71. We treated the patient conservatively with nasogastric suction, intravenous fluid and antivirals. The patient's symptoms improved after 8 d, and recovered without complications. We conclude that EV71 can cause acute pancreatitis in HFMD, which should be considered in differential diagnosis, especially in cases of idiopathic pancreatitis. 展开更多
关键词 PANCREATITIS ENTEROVIRUS 71 Hand FOOT andmouth DISEASE
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Is oxygen therapy beneficial for normoxemic patients with acute heart failure?A propensity score matched study
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作者 Yue Yu Ren-Qi Yao +6 位作者 yu-feng zhang Su-Yu Wang Wang Xi Jun-Nan Wang Xiao-Yi Huang Yong-Ming Yao Zhi-Nong Wang 《Military Medical Research》 SCIE CSCD 2022年第3期265-276,共12页
Background:The clinical efficiency of routine oxygen therapy is uncertain in patients with acute heart failure(AHF)who do not have hypoxemia.The aim of this study was to investigate the association between oxygen ther... Background:The clinical efficiency of routine oxygen therapy is uncertain in patients with acute heart failure(AHF)who do not have hypoxemia.The aim of this study was to investigate the association between oxygen therapy and clinical outcomes in normoxemic patients hospitalized with AHF using real-world data.Methods:Normoxemic patients diagnosed with AHF on intensive care unit(ICU)admission from the electronic ICU(eICU)Collaborative Research Database were included in the current study,in which the study population was divided into the oxygen therapy group and the ambient air group.Propensity score matching(PSM)was applied to create a balanced covariate distribution between patients receiving supplemental oxygen and those exposed to ambient air.Linear regression and logistic regression models were performed to assess the associations between oxygen therapy and length of stay(LOS),and all-cause in-hospital as well as ICU mortality rates,respectively.A series of sensitivity and subgroup analyses were conducted to further validate the robustness of our findings.Results:A total of 2922 normoxemic patients with AHF were finally included in the analysis.Overall,42.1%(1230/2922)patients were exposed to oxygen therapy,and 57.9%(1692/2922)patients did not receive oxygen therapy(defined as the ambient air group).After PSM analysis,1122 pairs of patients were matched:each patient receiving oxygen therapy was matched with a patient without receiving supplemental oxygen.The multivariable logistic model showed that there was no significant interaction between the ambient air and oxygen therapy for all-cause in-hospital mortality[odds ratio(OR)=1.30;95%confidence interval(CI)0.92–1.82;P=0.138]or ICU mortality(OR=1.39;95%CI 0.83–2.32;P=0.206)in the post-PSM cohorts.In addition,linear regression analysis revealed that oxygen therapy was associated with prolonged ICU LOS(OR=1.11;95%CI 1.06–1.15;P<0.001)and hospital LOS(OR=1.06;95%CI 1.01–1.10;P=0.009)after PSM.Furthermore,the absence of an effect of supplemental oxygen on mortality was consistent in all subgroups.Conclusions:Routine use of supplemental oxygen in AHF patients without hypoxemia was not found to reduce all cause in-hospital mortality or ICU mortality. 展开更多
关键词 Acute heart failure DEATH HYPEROXIA MORTALITY Oxygen therapy
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Development of ZnTe film with high copper doping efficiency for solar cells
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作者 林新璐 赵文雄 +3 位作者 吴秋晨 张玉峰 Hasitha Mahabaduge 刘向鑫 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第10期599-606,共8页
Since a hole barrier was formed in back contact due to mismatch of work function, the back contact material for CdTe cell has been a significant research direction. The ZnTe:Cu is an ideal back contact material, which... Since a hole barrier was formed in back contact due to mismatch of work function, the back contact material for CdTe cell has been a significant research direction. The ZnTe:Cu is an ideal back contact material, which reduces the valence band discontinuity and can be used as the electron back reflection layer to inhibit interface recombination. The conductivity of ZnTe:Cu film is improved by applying RF-coupled DC sputtering and post-deposition heat treatment. The doping efficiency is computed as the ratio of free hole density and copper concentration, which can be correlated with performance for CdTe-based solar cell. The higher doping efficiency means that more copper atoms substitute for Zn sites in ZnTe lattices and less mobilized copper atoms remain which can enter into the CdTe absorber layer. Copper atoms are suspected as dominant element for CdTe-based cell degradation. After optimizing the ZnTe:Cu films, a systematic study is carried out to incorporate ZnTe:Cu film into CdTe solar cell. The EQE spectrum is kept relatively stable over the long wavelength range without decreasing. It is proved that the conduction band barrier of device with ZnTe:Cu/Au contact material has an effect on the EQE response, which works as free electron barrier and reduces the recombination rate of free carrier. According to the dark J-V data or the light J-V data in the linear region, the current indicates that the intercept gives the diode reverse saturation current. The results of ideality factor indicate that the dominant recombination occurs in the space charge region. In addition, the space charge density and depletion width of solar cell can be estimated by C-V profiling. 展开更多
关键词 solar cell radio frequency sputtering doping efficiency post-deposition heat treatment
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Two bone blocks sandwich technique for horizontal reconstruction of severely atrophic alveolar ridge in anterior maxilla: A case report
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作者 Hai-Bin Xia yu-feng zhang +1 位作者 Bin Shi Min Wang 《World Journal of Clinical Cases》 SCIE 2020年第5期971-979,共9页
BACKGROUND Severe horizontal bone deficiency of the maxillary anterior region is considered a major challenge in reconstruction and successful implant placement.Various approaches have been developed to augment bone v... BACKGROUND Severe horizontal bone deficiency of the maxillary anterior region is considered a major challenge in reconstruction and successful implant placement.Various approaches have been developed to augment bone volume.Of these approaches,onlay bone graft,alveolar bone splitting,and guided bone regeneration have been suggested.CASE SUMMARY A 22-year-old female patient,with no previous medical history,presented to the Department of Oral Implantology,Wuhan University due to a missing right maxillary incisor.The X-ray results showed severe horizontal bone deficiency,with an available bone width of 3.1-4.0 mm.The two bone blocks sandwich technique was performed to augment the bone volume.After 6 months healing,X-ray results showed that the newly formed alveolar ridge dimension increased to 4.7-9.5 mm horizontally.Implant insertion surgery was performed and allceramic restorations were fabricated.The implant was stable at the 1-year followup visit after restoration,and the X-ray showed a stable bone level around the dental implant.The scores for the pink esthetic score and white esthetic score were 12 and 8,respectively,and the patient was satisfied with the esthetic outcome.CONCLUSION The two bone blocks sandwich technique may be an alternative treatment option in augmenting severe horizontal bone deficiency of the anterior maxilla. 展开更多
关键词 Horizontal bone resorption Onlay bone graft Sandwich Dental implant ESTHETIC Case report
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A network pharmacology approach to explore the mechanism of Kangguan decoction in the treatment of coronavirus disease 2019 with preliminary verification
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作者 Wei-Long Jiang yu-feng zhang +6 位作者 Meng-Ying Liu Su-Yan zhang Jun-Xian Xu Min Li Hong Xue Li-Jun Tian Xu-Dong Han 《TMR Integrative Medicine》 2021年第25期1-24,共24页
Objective:To explore the mechanism of Kangguan decoction in the treatment of coronavirus disease 2019(COVID-19)and then perform preliminary verification.Methods:The effective compounds and target genes of Kangguan dec... Objective:To explore the mechanism of Kangguan decoction in the treatment of coronavirus disease 2019(COVID-19)and then perform preliminary verification.Methods:The effective compounds and target genes of Kangguan decoction were obtained from Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform.COVID-19 related target genes were searched in the GeneCards database.The active target genes of Kangguan decoction acting on COVID-19 were identified to perform GO function enrichment and KEGG pathway enrichment analysis.The compound-target network and protein-protein interaction were constructed;Molecular docking simulations of macromolecular protein target receptors and their corresponding compounds were performed.The clinical data of COVID-19 patients were retrieved from their electronic medical records of Nantong Third People's Hospital.Results:We screened out 137 effective compounds and 274 effective target genes of Kangguan decoction from TCMSP.The active target genes of Kangguan decoction were compared with the COVID-19 related target genes,and 63 active target genes for Kangguan decoction acting on COVID-19 were identified.GO function enrichment and KEGG pathway enrichment analysis were performed.The compound-target network and PPI network were constructed and the key compounds and key targets were selected to construct a key compound-target network.Finally,the binding of the target and its corresponding components was verified by molecular docking and two clinical cases with obvious clinical efficacy after Kangguan decoction application were demonstrated.Conclusion:The pharmacological mechanism of Kangguan decoction acting on COVID-19 has been explored,and the active compounds and targets of Kangguan decoction acting on COVID-19 and clinical efficacy for Kangguan decoction treating COVID-19 patients have been preliminarily verified. 展开更多
关键词 Kangguan decoction Coronavirus disease 2019 Network pharmacology Molecular docking Clinical efficacy QUERCETIN PTGS2 INTERLEUKIN-6
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Progress of Radix Astragali and Radix Angelicae Sinensis in the treatment of idiopathic pulmonary fibrosis
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作者 Hui-Zhe zhang Cong Wang yu-feng zhang 《TMR Integrative Medicine》 2022年第24期1-6,共6页
Idiopathic pulmonary fibrosis(IPF)is a chronic,progressive,fibrotic interstitial lung disease.Current treatment options for IPF are limited.Radix Astragali(RA)and Radix Angelicae Sinensis(RAS),according to 5:1 ratio c... Idiopathic pulmonary fibrosis(IPF)is a chronic,progressive,fibrotic interstitial lung disease.Current treatment options for IPF are limited.Radix Astragali(RA)and Radix Angelicae Sinensis(RAS),according to 5:1 ratio composed of Danggui Buxue decoction(DGBXD),which have played an essential role in the treatment of IPF.This article reviewed the experimental research,clinical research,and progress of RA and RAS(DGBXD)treating IPF to provide a deeper scientific basis for the future experimental research and clinical research. 展开更多
关键词 idiopathic pulmonary fibrosis Radix Astragali Radix Angelicae Sinensis Danggui Buxue decoction
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The effectiveness and safety of HuangQiXiXin decoction for cough variant asthma:protocol for a systematic review
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作者 Qing-Qing Xia Cong Wang +2 位作者 yu-feng zhang Wei-Long Jiang Jia Qi 《Clinical Research Communications》 2022年第2期5-8,共4页
Objective:A comprehensive and updated systematic review is needed to evaluate the effectiveness and safety of HuangQiXiXin decoction(HQXXD)for cough variant asthma(CVA).The aim of this systematic review protocol is to... Objective:A comprehensive and updated systematic review is needed to evaluate the effectiveness and safety of HuangQiXiXin decoction(HQXXD)for cough variant asthma(CVA).The aim of this systematic review protocol is to comprehensively assess the effectiveness and safety of HQXXD for CVA.Methods:An overall search for studies in main English and Chinese electronic databases from their inception to January 2021 will be performed.Randomized controlled trials regarding HQXXD for CVA will be included.We will use RevMan 5.3 software to perform statistical analysis and meta-analysis.Results:The findings of this systematic review will be disseminated through peer-reviewed publications.Conclusion:The systematic review will provide more evidence regarding the effectiveness and safety of HQXXD for CVA. 展开更多
关键词 HuangQiXiXin decoction cough variant asthma PROTOCOL systematic review
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Predictive Value of Inflammation Biomarkers in Patients with Portal Vein Thrombosis 被引量:7
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作者 Jian-Bo Han Qing-Hua Shu +1 位作者 yu-feng zhang Yong-Xiang Yi 《Journal of Clinical and Translational Hepatology》 SCIE 2021年第3期384-391,共8页
Background and Aims:To investigate the usefulness of inflammation biomarkers to serve as a predictors of portal vein thrombosis(PVT)postoperatively(post)in patients with portal hypertension after splenectomy and perie... Background and Aims:To investigate the usefulness of inflammation biomarkers to serve as a predictors of portal vein thrombosis(PVT)postoperatively(post)in patients with portal hypertension after splenectomy and periesophagogastric devascularization.Methods:A total of 177 liver cirrhosis patients were recruited from January 2013 to December 2017.They were divided into a PVT group(n=71)and a non-PVT group(n=106),according to ultrasound examination findings at 7-day post.Inflammation biomarkers involving platelet-to-lymphocyte ratio(PLR),neutrophil-to-lymphocyte ratio(NLR),monocyte-to-lymphocyte ratio(MLR),red blood cell distribution width-to-platelet ratio(RPR),mean platelet volume-to-platelet ratio(MPR)preoperatively(pre)and at 1,3,7-days post were recorded.Results:The univariate logistic regression analysis indicated that PLR(pre)(odds ratio(OR)=3.963,95%confidence interval(CI)=2.070–7.587,p<0.000),MLR(pre)(OR=2.760,95%CI=1.386–5.497,p=0.004),PLR(postday 7)(OR=3.345,95%CI=1.767–6.332,p=0.000)were significantly associated with the presence of PVT.The multivariate logistic regression analysis results indicated that PLR(pre)(OR=3.037,95%CI=1.463–6.305,p=0.003),MLR(pre)(OR=2.188,95%CI=1.003–4.772,p=0.049),PLR(post-day 7)(OR=2.166,95%CI=1.053–4.454,p=0.036)were independent factors for predicting PVT.Conclusions:The PLR(pre),MLR(pre),and PLR(post-day 7)are predictors of portal vein thrombosis post in patients with portal hypertension after splenectomy and periesophagogastric devascularization. 展开更多
关键词 Inflammation biomarker THROMBOSIS SPLENECTOMY Portal vein
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Construction of potential idiopathic pulmonary fibrosis related microRNA and messenger RNA regulatory network 被引量:1
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作者 yu-feng zhang Li-Na Gu +4 位作者 Jia Qi Qing-Qing Xia Li-Jun Tian Wei-Long Jiang Meng-Shu Cao 《Chinese Medical Journal》 SCIE CAS CSCD 2021年第5期584-586,共3页
To the Editor:Idiopathic pulmonary fibrosis(IPF)is a kind of lung disease characterized by chronic and progressive pulmonary fibrosis with unknown etiology,whose pathological manifestation is usual interstitial pneumo... To the Editor:Idiopathic pulmonary fibrosis(IPF)is a kind of lung disease characterized by chronic and progressive pulmonary fibrosis with unknown etiology,whose pathological manifestation is usual interstitial pneumonia.111 However,the prognosis of IPF was still poor,and the median survival time after diagnosis was about 2 to 3 years Therefore,it seems important to seek and develop an effective therapeutic modality for IPF.Through base pairs of intramolecular complementary sequences of messenger RNA(mRNA),microRNA(miRNA)plays a key role in RNA silencing and post-transcriptional gene expression regulation. 展开更多
关键词 DIAGNOSIS LUNG PROGNOSIS
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Samarium( II )-electrocatalyzed chemoselective reductive alkoxylation of phthalimides 被引量:1
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作者 yu-feng zhang Mohamed Mellah 《Organic Chemistry Frontiers》 SCIE EI 2022年第5期1308-1314,共7页
The unprecedented samarium electrocatalyzed reductive alkoxylation of phthalimides in a single step is presented.Under mild conditions,using electrogenerated Sm(II)with TMSCl(trimethyl chlorosilane),N-substituted 3-al... The unprecedented samarium electrocatalyzed reductive alkoxylation of phthalimides in a single step is presented.Under mild conditions,using electrogenerated Sm(II)with TMSCl(trimethyl chlorosilane),N-substituted 3-alkoxyl isoindolin-1-ones are isolated in good to excellent yields with high functional group tolerance. 展开更多
关键词 catalyzed REDUCTIVE SUBSTITUTED
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Generations of Integrable Hierarchies and Exact Solutions of Related Evolution Equations with Variable Coefficients
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作者 yu-feng zhang Yan WANG +1 位作者 Bin-lu FENG Jian-qin MEI 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2014年第4期1085-1106,共22页
We first propose a way for generating Lie algebras from which we get a few kinds of reduced Lie algebras,denoted by R^6,R^8 and R_1~6,R_2~6,respectively.As for applications of some of them,a Lax pair is introduced by ... We first propose a way for generating Lie algebras from which we get a few kinds of reduced Lie algebras,denoted by R^6,R^8 and R_1~6,R_2~6,respectively.As for applications of some of them,a Lax pair is introduced by using the Lie algebra R^6 whose compatibility gives rise to an integrable hierarchy with 4-potential functions and two arbitrary parameters whose corresponding Hamiltonian structure is obtained by the variational identity.Then we make use of the Lie algebra R_1~6 to deduce a nonlinear integrable coupling hierarchy of the mKdV equation whose Hamiltonian structure is also obtained.Again,via using the Lie algebra R_2~6,we introduce a Lax pair and work out a linear integrable coupling hierarchy of the mKdV equation whose Hamiltonian structure is obtained.Finally,we get some reduced linear and nonlinear equations with variable coefficients and work out the elliptic coordinate solutions,exact traveling wave solutions,respectively. 展开更多
关键词 HAMILTON结构 演化方程 积层 精确解 变系数 非线性方程 MKDV方程 世代
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Analysis on Lump, Lumpoff and Rogue Waves with Predictability to a Generalized Konopelchenko-Dubrovsky-Kaup-Kupershmidt Equation
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作者 刘文豪 张玉峰 石丹丹 《Communications in Theoretical Physics》 SCIE CAS CSCD 2019年第6期670-676,共7页
In this paper, we investigate a(2+1)-dimensional generalized Konopelchenko-Dubrovsky-Kaup-Kupershmidt equation. The lump waves, lumpoff waves, and rogue waves are presented based on the Hirota bilinear form of this eq... In this paper, we investigate a(2+1)-dimensional generalized Konopelchenko-Dubrovsky-Kaup-Kupershmidt equation. The lump waves, lumpoff waves, and rogue waves are presented based on the Hirota bilinear form of this equation. It is worth noting that the moving path as well as the appearance time and place of the lump waves are given. Moreover, the special rogue waves are considered when lump solution is swallowed by double solitons. Finally,the corresponding characteristics of the dynamical behavior are displayed. 展开更多
关键词 Konopelchenko-Dubrovsky-Kaup-Kupershmidt EQUATION lump WAVES lumpoff WAVES rogue WAVES
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Applications of a Few Lie Algebras
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作者 yu-feng zhang Zhong HAN Zhong-long ZHAO 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2016年第2期289-304,共16页
Two isomorphic groups R^2 and M are firstly constructed.Then we extend them into the differential manifold R^(2n) and n products of the group M for which four kinds of Lie algebras are obtained.By using these Lie alge... Two isomorphic groups R^2 and M are firstly constructed.Then we extend them into the differential manifold R^(2n) and n products of the group M for which four kinds of Lie algebras are obtained.By using these Lie algebras and the Tu scheme,integrable hierarchies of evolution equations along with multi-component potential functions can be generated,whose Hamiltonian structures can be worked out by the variational identity.As application illustrations,two integrable Hamiltonian hierarchies with 4 component potential functions are obtained,respectively,some new reduced equations are followed to present.Specially remark that the integrable hierarchies obtained by taking use of the approach presented in the paper are not integrable couplings.Finally,we generalize an equation obtained in the paper to introduce a general nonlinear integrable equation with variable coefficients whose bilinear form,Backlund transformation,Lax pair and infinite conserved laws are worked out,respectively,by taking use of the Bell polynomials. 展开更多
关键词 GROUP Lie algebra BILINEAR Lax pair conservation law
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