维普中文期刊产品整合服务
138篇 您的检索式:作者名="ZENG Xuan"
    题名 作者 年代 出处 被引量
1The influence of stage at diagnosis and molecular subtype on breast cancer patient survival: a hospital.based multi.center study显示文摘Background: Stage at diagnosis and molecular subtype are important clinical factors associated with breast cancer patient survival. However, subgroup survival data from a large study sample are limited in China.To estimate the survival differences among patients with different stages and various subtypes of breast cancer, we conducted a hospital-based multi-center study on breast cancer in Beijing, China.Methods: All resident patients diagnosed with primary, invasive breast cancer between January 1,2006 and December 31,2010 from four selected hospitals in Beijing were included and followed up until December 31,2015. Hospitalbased data of stage at diagnosis, hormone receptor status, and selected clinical characteristics, including body mass index(BMI), menopausal status, histological grade, and histological type, were collected from the medical records of the study subjects. Overall survival(OS) and cancer-specific survival(CSS) were estimated. Cox proportional hazards models were employed to evaluate the associations of stage at diagnosis and molecular subtype with patient survival.Results: The 5-year OS and CSS rates for all patients were 89.4% and 90.3%. Survival varied by stage and molecular subtype. The 5-year OS rates for patients with stage I, Ⅱ, Ⅲ, and IV diseases were 96.5%, 91.6%, 74.8%, and 40.7%,respectively, and the corresponding estimates of 5-year CSS rates were 97.1%, 92.6%, 75.6%, and 42.7%, respectively.The 5-year OS rates for patients with luminal A, luminal B, HER2, and triple-negative subtypes of breast cancer were92.6%, 88.4%, 83.6%, and 82.9%, respectively, and the corresponding estimates of 5-year CSS rates were 93.2%, 89.1 %,85.4%, and 83.5%, respectively. Multivariate analysis showed that stage at diagnosis and molecular subtype were important prognostic factors for breast cancer.Conclusions: Survival of breast cancer patients varied significantly by stage and molecular subtype. Cancer screening is encouraged for the early detection and early diagnosis of breast cancer. More advanced therapies and health care policies are needed on HER2 and triple-negative subtypes.Tingting Zuo Hongmei Zeng Huichao Li Shuo Liu Lei Yang Changfa Xia Rongshou Zheng Fei Ma Lifang Liu Ning Wang Lixue Xuan Wanqing Chen 2017Chinese Journal of Cancer2017,36,11:18
2X-ray image characteristics and related measurements in the ankles of 118 adult patients with Kashin-Beck disease显示文摘Zeng Yi Zhou Zongke Shen Bin Yang Jing Kang Pengde Zhou Xuan Zou Ling Pei Fuxing 2014Chinese Medical Journal2014,,13:13
3运用气相色谱-嗅觉测量法和气质联用法分析三个桂花品种的香气活性物质(英文)显示文摘研究目的:分析不同桂花品种感官评价差异所对应的香气成分,及其有贡献的香气活性物质,为桂花的生物科学应用提供依据。创新要点:首次运用气相色谱-嗅觉测量法(GC-O)结合气质联用法(GC-MS)对所分离的挥发性物质进行定性和半定量分析,并同时结合其气味描述,分析不同桂花品种的香气活性物质特征。本研究还根据所检测的香气活性物质的气味特征对香气活性物质进行分组,能更直观地分析桂花不同品种香气差异的原因。研究方法:(1)运用GC-MS对三个桂花品种的挥发性物质进行定性和半定量的比较分析(见表1);(2)运用GC-O对三个桂花品种香气活性物质进行比较分析(见表2);(3)对香气活性物质进行分组,探究不同桂花品种的香气差异原因(见表3和图2)。重要结论:(1)GC-O结合GC-MS分析所得香气活性物质并非都是含量较高的挥发性物质,有些含量较低的挥发性物质也对桂花香气形成有贡献;(2)不同桂花品种的香气差异是由不同香气分组以及香气活性物质强度不同所致。Xuan CAI Rong-zhang MAI Jing-jing ZOU Hong-yan ZHANG Xiang-ling ZENG Ri-ru ZHENG Cai-yun WANG 2014Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2014,15,7:12
4Experiment on Leader Propagation Characteristics of Air Gaps in UHVDC Transmission Towers Under Positive Switching Impulse Voltages显示文摘Rapid developments in EHV/UHV transmission systems require a deeper understanding of the mechanism of long air gap discharge.Leader propagation is one of the main processes in long gap breakdown.In this paper,the leader propagation characteristics of real size±800 kV UHVDC transmission tower gaps under positive switching impulse voltages(185/2290μs)are investigated.An integrated observation platform consisting of an impulse voltage divider,a coaxial shunt,a high-speed video camera,and a set of integrated optical electric field sensors(IOES),is established.The waveforms of impulse voltage,discharge current,electric field variation at specific positions,and time-resolved photographs of discharge morphology are recorded.Axial leader velocity and the relationship between leader advancements and injected charge are obtained.The typical value of leader stable propagation velocity is 1.7–2.2 cm/μs,which varies slightly with the gap length and applied voltage amplitude.The leader velocity in the re-illumination process is much higher,and is seen as varying from 5 cm/μs to 30 cm/μs,with an average value around 10 cm/μs.The charge in leader channel per unit length is 20–40μC/m,which illustrates a near-direct proportion relationship between discharge current and leader velocity.The observed parameters are important for further simulation of the tower gap breakdown processes.Xuan Zhou She Chen Hai Wang Rong Zeng Chijie Zhuang Junjie Yu Yujian Ding 2015CSEE Journal of Power and Energy Systems2015,1,3:12
5INFLUENCE OF QUERCETIN AND X-RAY ON COLLAGEN SYNTHESIS OF CULTURED HUMAN KELOID-DERIVED FIBROBLASTS显示文摘Objective To investigate the effects of quercetin and X-ray on collagen synthesis of cultured human keloid-derived fibroblast and the mechanism.Methods Collagen synthesis of cultured human keloid and normal fibroblasts were detected by hydroxyproline colorimetric analysis. Immunocytochemical staining was used to investigate collagen I and III expression. mRNA expression of collagen I and III, and transforming growth factor (TGF)-β1 were assayed by reverse transcription-polymerase chain reaction (RT-PCR) and real-time PCR. Results Quercetin inhibited the collagen synthesis of both keloid and normal fibroblasts in a dose-dependent manner. Immunocytochemical staining indicated that collagen I and III were down-regulated by quercetin and X-ray (P<0.05), particularly collagen I (P<0.05). mRNA expression of both collagen I and III in quercetin groups significantly decreased compared with that in control group (P<0.05), especially in the group treated with both quercetin and X-ray (P<0.01). mRNA level of TGF-β1 gene was down-regulated by quercertin (P<0.05). Conclusions Quercetin will probably be one of the new medicines which could effectively treat keloid. Quercetin combined with X-ray could reduce the dose of radiation.Xiao Long Xuan Zeng Fu-quan Zhang Xiao-jun Wang 2006Chinese Medical Sciences Journal2006,21,3:11
6Comparative proteogenomic analysis of the Leptospira interrogans virulence-attenuated strain IPAV against the pathogenic strain 56601显示文摘稀释毒力的螺旋体 interrogans serovar Lai 紧张 IPAV 被延长实验室经过从在中国孤立的高度剧毒的祖先的紧张导出。我们学习了 IPAV 的基因变化对病原的 L 经由比较分析使它变为无毒害。interrogans serovar Lai 紧张 56601。IPAV 紧张的完全的染色体顺序决心、使用与作比较,然后修正并且重新注解紧张 56601 的染色体顺序。除了他们的高度类似的 genomic,结构和基因顺序, 33 插入的一个总数, 53 删除和 301 个单个核苷酸的变化(SNV ) 在整个直接影响 101 基因的 IPAV 的染色体被检测,在他们的 5 ′ 的任何一个;在上游的区域或在他们的编码区域以内。在他们之中, 44 功能的基因的多数涉及信号 transduction,压力反应, transmembrane 运输和氮新陈代谢。基于量的液体,层析(LC )-MS/MS 数据揭示了的比较 proteomic 分析在 orthologs 的 1 627 选择的对之中,在 IPAV 的 174 基因拉紧,这是 upregulated,与主要在精力的班上的丰富生产和类脂化合物新陈代谢。相反,在紧张 56601 的 228 基因是 upregulated,与在蛋白质翻译和 DNA 复制 / 修理的范畴充实的多数。 genomic 和 proteomic 途径的联合在批评基因说明了那改变的表情或变化,例如编码 Ser/Thr kinase ,碳饥饿蛋白质 CstA ,夫酸安合成酶,GTP有约束力的蛋白质 BipA , ribonucleotide-diphosphate reductase 和磷酸盐 transporter 的那些,并且在脂蛋白或外部膜蛋白质的翻译侧面的改变是可能的在紧张 IPAV 说明毒力变细。Yi Zhong Xiao Chang Xing-Jun Cao Yan Zhang Huajun Zheng Yongzhang Zhu Chengsong Cai Zelin Cui Yunyi Zhang Yuan-Yuan Li Xiu-Gao Jiang Guo-Ping Zhao Shengyue Wang Yixue Li Rong Zeng Xuan Li Xiao-Kui Guo 2011Cell Research2011,21,8:10
7Optimization of Protein Extraction and Decoloration Conditions for Tea Residues显示文摘To optimize alkaline method for extracting proteins from tea residue(TR), the effect of extraction conditions on tea protein extraction rate(TPER) was investigated. Single factor experiment showed the extraction temperature 80 °C, extraction time 100 min, p H value 13 and liquid–solid ratio 40:1 as the optimal extraction conditions. The orthogonal test revealed that the maximum TPER reached 29.71% under the following optimal combination of conditions: extraction temperature 70 °C, extraction time 60 min, p H 12 and liquid–solid ratio 50:1. For optimizing the purification of tea residue proteins, isoelectric point precipitation(p I), ammonium sulfate precipitation(a S) and isoelectric point plus ammonium sulfate precipitation(i PAS) were compared. The result showed that the highest protein precipitation rate(PPR) was 89.70% which was generated by using i PAS. Furthermore, powdered activated carbon was chosen as the most suitable decolorant for the extracted proteins.CUI Qiaoyun NI Xinghong ZENG Liang TU Zheng LI Jin SUN Kang CHEN Xuan LI Xinghui 2017Horticultural Plant Journal2017,3,4:8
8Experience of Clinical Management for Pregnant Women and Newborns with Novel Coronavirus Pneumonia in Tongji Hospital,China显示文摘Based on the New Diagnosis and Treatment Scheme for Novel Coronavirus Infected Pneumonia(Trial Edition 5),combined with our current clinical treatment experience,we recently proposed a revision of the first edition of“Guidance for maternal and fctal management during pneumonia epidemics of novel coronavirus infection in the Wuhan Tongji Hospital'.This article focused on the issues of greatest concern of pregnant women including severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection diagnostic criteria,inspection precautions,drug treatment options,indications and methods of termination of pregnancy,postpartum fever,breastfeeding considerations,mode of mother-to-child transmission,neonatal isolation and advice on nconatal nursing,to provide valuable experience for better management of SARS-CoV-2 infection in pregnant women and newborns.Shao-shuai WANG Xuan ZHOU Xing-guang LIN Yan-yan LIU Jian-li WU Lali Mwamaka Shariful Xiao-lin HU Zhi-bui RONG Wei LIU Xiao-ping LUO Zhuo CHEN Wan-jiang ZENG Su-hua CHEN Ding MA Ling CHEN Ling FENG 2020Current Medical Science2020,40,2:8
9An experimental method for squealer tip flow field considering relative casing motion显示文摘Squealer tip is widely used in turbines to reduce tip leakage loss.In typical turbine environment,the squealer tip leakage flow is affected by multiple factors such as the relative casing motion and the wide range of variable incidence angles.The development of experimental methods which can accurately model the real turbine environment and influencing factors is of great significance to study the squealer tip leakage flow mechanism.In the present paper,a low-speed turbine cascade test facility which can model the relative casing motion and wide range of variable incidence angles(-25°to 55°)is built.Based on the similarity criteria,a high-low speed similarity transformation method of the turbine cascade is established by considering the thickness of the turbine blade.A combined testing method of Particle Image Velocimetry(PIV)and local pressure measurement is proposed to obtain the complex flow structures within the tip cavity.The results show that the experimental method can successfully model the relative casing motion and the wide range of variable incidence angles.The low-speed cascade obtained by the similarity transformation can model the high-speed flow accurately.The measurement technique developed can obtain the complex flow field and successfully capture the scraping vortex within the squealer tip.Fei ZENG Jinlin DU Lin HUANG Liming XUAN Qiang ZHAO Zhengping ZOU 2020Chinese Journal of Aeronautics2020,33,7:8
10Association betweenITGA2 C807T polymorphism and gastric cancer risk显示文摘AIM:To evaluate the impact of the ITGA2 gene polymorphism on gastric cancer risk.METHODS:A hospital-based case-control study was conducted,including 307 gastric cancer patients and 307 ageand gender-matched control subjects.The genotypes were identified by polymerase chain reaction-restriction fragment length polymorphism assay.RESULTS:The frequencies of the wild and variant genotypes in cases were significantly different from those of controls (P=0.019).Compared with individuals with the wild genotype CC,subjects with the variant genotypes (CT+ TT) had a significantly higher risk of gastric cancer (adjusted odds ratio=1.57,95% CI=1.13-2.17,P=0.007).In stratified analyses,the elevated gastric cancer risk was especially evident in older individuals aged>58 years,nonsmokers and rural subjects.Further analyses revealed that the variant genotypes were associated with poor tumor differentiation and adjacent organ invasion in the sub-analysis of gastric cancer patients.CONCLUSION:The ITGA2 gene C807T polymorphism may be associated with an increased risk of gastric cancer,differentiation and invasion of gastric cancer.Jie Chen Nan-Nan Liu Jia-Qi Li Li Yang Ying Zeng Xiao-Mei Zhao Lin-Lin Xu Xuan Luo Bin Wang Xue-Rong Wang 2011World Journal of Gastroenterology2011,17,23:7
11Repeated pancreatitis-induced splenic vein thrombosis leads to intractable gastric variceal bleeding: A case report and review显示文摘Gastric varices(GV) are one of the most common complications for patients with portal hypertension. Currently, histoacryl injection is recommended as the initial treatment for bleeding of GV, and this injection has been confirmed to be highly effective for most patients in many studies. However, this treatment might be ineffective for some types of GV, such as splenic vein thrombosis-related localized portal hypertension(also called left-sided, sinistral, or regional portal hypertension). Herein, we report a case of repeated pancreatitis-induced complete splenic vein thrombosis that led to intractable gastric variceal bleeding, which was treated by splenectomy. We present detailed radiological and pathological data and blood rheology analysis(the splenic artery- after a short gastric vein or stomach vein- gastric coronary vein- portal vein). The pathophysiology can be explained by the abnormal direction of blood flow in this patient. To our knowledge, this is the first reported case for which detailed patho-logy and blood rheology data are available.Shan-Hong Tang Wei-Zheng Zeng Qian-Wen He Jian-Ping Qin Xiao-Ling Wu Tao Wang Zhao Wang Xuan He Xiao-Lei Zhou Quan-Shui Fan Ming-De Jiang 2015World Journal of Clinical Cases2015,3,10:7
12Survey of recent progress on lightning and lightning protection research显示文摘Lightning and lightning induced effects have significant influence on many aspects affecting the public, whichmakes the research of lightning and lightning protection very important. However, due to the strong randomness andcomplex discharge mechanisms of lightning, the understanding of lightning is still far from satisfactory. On the basis ofthe International Conference on Lightning Protection 2014, this study gives a review of recent progress on lightningand lightning protection research covering the following aspects: lightning locating and observation, lightning physics,lightning electromagnetic transients, and lightning protection for various systems. The goals of this study are to givereaders an overall introduction to the recent progress in lightning and lightning protection research, and to motivatethem to conduct further studies to address the unsolved problems in lightning-related research.Rong Zeng Chijie Zhuang Xuan Zhou She Chen Zezhong Wang Zhanqing Yu Jinliang He 2016High Voltage2016,1,1:6
13Fe/MCM-41 as a promising heterogeneous catalyst for ozonation of p-chlorobenzoic acid in aqueous solution显示文摘Mesoporous MCM-41 和 Fe 装载了 MCM-41 (Fe/MCM-41 ) ,它被一个热水的方法和一个蘸的方法成功地分别地准备,在水的答案为 p-chlorobenzoic 酸(p-CBA ) 的 ozonation 作为异构的催化剂被使用。MCM-41 和 Fe/MCM-41 被 XRD,英尺红外和弥漫的反射 UVvis (DR-UVvis ) 技术描绘。MCM-41 或 Fe/MCM-41 的存在改进 p-CBA 和全部的器官的碳(TOC ) 与 ozonation 相比的移动效率独自一个。在试验性的条件下面, Fe/MCM-41/O3 过程的 TOC 移动率在 60 min 氧化时间是超过 63.5% , 44.5% 使用 MCM-41 作为催化剂,仅仅 37.7% 与 ozonation 独自一个。在 Fe/MCM-41/O3 过程的 turt-butanol (TBA ) 的存在显示 p-CBA 的氧化机制发生经由哦在液体体积。并且 Fe/MCM-41 是有希望的催化剂。Rui Huan Huang Jie Liu Lai Sheng Li Qiu Yun Zhang Li Xuan Zeng Ping Lu 2011Chinese Chemical Letters2011,22,6:6
14Impaired tumor angiogenesis and VEGF- induced pathway in endothelial CD146 knockout mice显示文摘Qiqun Zeng Zhenzhen Wu Hongxia Duan Xuan Jiang Tao Tu Di Lu Yongting Luo Ping Wang Lina Song Jing Feng Dongling Yang Xiyun Yan 2014Protein & Cell2014,5,6:6
15Pharmacokinetics-based identification of pseudoaldosterogenic compounds originating from Glycyrrhiza uralensis roots(Gancao)after dosing LianhuaQingwen capsule显示文摘LianhuaQingwen capsule,prepared from an herbal combination,is officially recommended as treatment for COVID-19 in China.Of the serial pharmacokinetic investigations we designed to facilitate identifying LianhuaQingwen compounds that are likely to be therapeutically important,the current investigation focused on the component Glycyrrhiza uralensis roots(Gancao).Besides its function in COVID-19 treatment,Gancao is able to induce pseudoaldosteronism by inhibiting renal 11β-HSD2.Systemic and colon-luminal exposure to Gancao compounds were characterized in volunteers receiving LianhuaQingwen and by in vitro metabolism studies.Access of Gancao compounds to 11β-HSD2 was characterized using human/rat,in vitro transport,and plasma protein binding studies,while 11β-HSD2 inhibition was assessed using human kidney microsomes.LianhuaQingwen contained a total of 41 Gancao constituents(0.01-8.56μmol/day).Although glycyrrhizin(1),licorice saponin G2(2),and liquiritin/liquiritin apioside(21/22)were the major Gancao constituents in LianhuaQingwen,their poor intestinal absorption and access to colonic microbiota resulted in significant levels of their respective deglycosylated metabolites glycyrrhetic acid(8),24-hydroxyglycyrrhetic acid(M2_(D);a new Gancao metabolite),and liquiritigenin(27)in human plasma and feces after dosing.These circulating metabolites were glucuronized/sulfated in the liver and then excreted into bile.Hepatic oxidation of 8 also yielded M2_(D).Circulating 8 and M2D,having good membrane permeability,could access(via passive tubular reabsorption)and inhibit renal 11β-HSD2.Collectively,1 and 2 were metabolically activated to the pseudoaldosterogenic compounds 8 and M2_(D).This investigation,together with such investigations of other components,has implications for precisely defining therapeutic benefit of LianhuaQingwen and conditions for its safe use.Xiao-fang Lan Olajide EOlaleye Jun-lan Lu Wei Yang Fei-fei Du Jun-ling Yang Chen Cheng Yan-hong Shi Feng-qing Wang Xue-shan Zeng Nan-nan Tian Pei-wei Liao Xuan Yu Fang Xu Ying-fei Li Hong-tao Wang Nai-xia Zhang Wei-wei Jia Chuan Li 2021Acta Pharmacologica Sinica2021,42,12:6
16Whole-genome resequencing of Osmanthus fragrans provides insights into flower color evolution显示文摘Osmanthus fragrans is a well-known ornamental plant that has been domesticated in China for 2500 years.More than 160 cultivars have been found during this long period of domestication,and they have subsequently been divided into four cultivar groups,including the Yingui,Jingui,Dangui,and Sijigui groups.These groups provide a set of materials to study genetic evolution and variability.Here,we constructed a reference genome of O.fragrans‘Liuyejingui’in the Jingui group and investigated its floral color traits and domestication history by resequencing a total of 122 samples,including 119 O.fragrans accessions and three other Osmanthus species,at an average sequencing depth of 15×.The population structure analysis showed that these 119 accessions formed an apparent regional cluster.The results of linkage disequilibrium(LD)decay analysis suggested that varieties with orange/red flower color in the Dangui group had undergone more artificial directional selection;these varieties had the highest LD values among the four groups,followed by the Sijigui,Jingui,and Yingui groups.Through a genome-wide association study,we further identified significant quantitative trait loci and genomic regions containing several genes,such as ethylene-responsive transcription factor 2 and Arabidopsis pseudoresponse regulator 2,that are positively associated with petal color.Moreover,we found a frameshift mutation with a 34-bp deletion in the first coding region of the carotenoid cleavage dioxygenase 4 gene.This frameshift mutation existed in at least one site on both alleles in all varieties of the Dangui group.The results from this study shed light on the genetic basis of domestication in woody plants,such as O.fragrans.Hongguo Chen Xiangling Zeng Jie Yang Xuan Cai Yumin Shi Riru Zheng Zhenqi Wang Junyi Liu Xinxin Yi Siwei Xiao Qiang Fu Jingjing Zou Caiyun Wang 2021Horticulture Research2021,8,1:5
17Structural Engineering of Hierarchical Aerogels Comprised of Multi-dimensional Gradient Carbon Nanoarchitectures for Highly Efficient Microwave Absorption显示文摘Recently,multilevel structural carbon aerogels are deemed as attractive candidates for microwave absorbing materials.Nevertheless,excessive stack and agglomeration for low-dimension carbon nanomaterials inducing impedance mismatch are significant challenges.Herein,the delicate“3D helix-2D sheet-1D fiber-0D dot”hierarchical aerogels have been successfully synthesized,for the first time,by sequential processes of hydrothermal self-assembly and in-situ chemical vapor deposition method.Particularly,the graphene sheets are uniformly intercalated by 3D helical carbon nanocoils,which give a feasible solution to the mentioned problem and endows the as-obtained aerogel with abundant porous structures and better dielectric properties.Moreover,by adjusting the content of 0D core-shell structured particles and the parameters for growth of the 1D carbon nanofibers,tunable electromagnetic properties and excellent impedance matching are achieved,which plays a vital role in the microwave absorption performance.As expected,the optimized aerogels harvest excellent performance,including broad effective bandwidth and strong reflection loss at low filling ratio and thin thickness.This work gives valuable guidance and inspiration for the design of hierarchical materials comprised of dimensional gradient structures,which holds great application potential for electromagnetic wave attenuation.Yongpeng Zhao Xueqing Zuo Yuan Guo Hui Huang Hao Zhang Ting Wang Ningxuan Wen Huan Chen Tianze Cong Javid Muhammad Xuan Yang Xinnan Wang Zeng Fan Lujun Pan 2021Nano-Micro Letters2021,13,9:5
18Competition between TRAF2 and TRAF6 Regulates NF-κB Activation in Human B Lymphocytes显示文摘Objective To investigate the role of TNF receptor-associated factor 2 (TRAF-2) and TRAF6 in CD40-induced nuclear factor-κB (NF-κB) signaling pathway and whether CD40 signaling requires TRAF2. Methods Human B cell lines were transfected with plasmids expressing wild type TRAF2 or dominant negative TRAF2,TRAF2-shRNA,or TRAF6-shRNA. The activation of NF-κB was detected by Western blot,kinase assay,transfactor enzyme-linked immunosorbent assay (ELISA),and fluorescence resonance energy transfer (FRET). Analysis of the role of TRAF-2 and TRAF-6 in CD40-mediated NF-κB activity was examined following stimulation with recombinant CD154. Results TRAF2 induced activity of IκB-kinases (IKKα,IKKi/ε),phosphorylation of IκBα,as well as nuclear translocation and phosphorylation of p65/RelA. In contrast,TRAF6 strongly induced NF-κB activation and nuclear translocation of p65 as well as p50 and c-Rel. Engagement of CD154-induced nuclear translocation of p65 was inhibited by a TRAF6-shRNA,but conversely was enhanced by a TRAF2-shRNA. Examination of direct interactions between CD40 and TRAFs by FRET documented that both TRAF2 and TRAF6 directly interacted with CD40. However,the two TRAFs competed for CD40 binding. Conclusions These results indicate that TRAF2 can signal in human B cells,but it is not essential for CD40-mediated NF-κB activation. Moreover,TRAF2 can compete with TRAF6 for CD40 binding,and thereby limit the capacity of CD40 engagement to induce NF-κB activation.Wen Zhang Xuan Zhang Xiao-li Wu Liu-sheng He Xiao-feng Zeng Amrie C. Grammer Peter E. Lipsky 2010Chinese Medical Sciences Journal2010,25,1:5
19Longitudinal Alterations of Local Spontaneous Brain Activity in Parkinson's Disease显示文摘We used resting-state fMRI to evaluate longitudinal alterations in local spontaneous brain activity in Parkinson's disease(PD) over a 2-year period. Data were acquired from 23 PD patients at baseline and follow-up,and 27 age-and sex-matched normal controls. Regional homogeneity(ReHo) and voxel-based-morphometry(VBM) were used to identify differences in local spontaneous brain activity and grey matter volume. With disease progression, we observed a progressive decrease in ReHo in the sensorimotor cortex, default-mode network, and left cerebellum, but increased ReHo in the supplementary motor area, bilateral temporal gyrus, and hippocampus.Moreover, there was a significant positive correlation between the rates of ReHo change in the left cerebellum and the rates of change in the Unified Parkinson's Disease Rating Scale-III scores. VBM revealed no significant differences in the grey matter volume among the three sets of acquisitions. We conclude that ReHo may be a suitable non-invasive marker of progression in PD.Qiaoling Zeng Xiaojun Guan Jason C.F.Law Yan Lun Zhujing Shen Tao Guo Min Xuan Quanquan Gu Xiaojun Xu Min Chen Minming Zhang 2017Neuroscience Bulletin2017,33,5:4
20The five major autoimmune diseases increase the risk of cancer:epidemiological data froma large-scale cohort study in China显示文摘Background:Cancer incidence and mortality have received critical attention during the long-term management of morbidities in patients with autoimmune diseases(AIDs).This study aimed to investigate and compare the risk of cancer associated with five major AIDs in a large-scale Chinese cohort.Methods:A total of 8,120 AID patients consecutively admitted to a national tertiary referral center in China were included and followed-up for 38,726.55 patient-years,including those with systemic lupus erythematosus(SLE),rheumatoid arthritis(RA),Sjoren’s syndrome(SS),systemic scleroderma(SSc),and idiopathic inflammatory myositis(IIM).Demographic data,cancer incidence,predilecting sites and cancer onset time were recorded and compared among the five AIDs.Results:Four hundred and thirty(5.3%)patients developed cancer.Their median agewas 57.5 years and AID durationwas 79.8 months.The estimated total standardized incidence ratio(SIR)of cancer in AIDs patients was 3.37,with the highest SIR observed in IIM(4.31),followed by RA(3.99),SSc(3.77),SS(2.88)and SLE(2.58).The increased SIR of cancers in AID patients showed a female predominance(female vs.male:3.59 vs.2.77)and younger patient involvement(age<50 vs.≥50 years:4.88 vs.3.04).Patientswith SLE had increased SIRs for developing hematologic malignancies and solid tumors located in the urinary bladder,corpus uteri and cervix uteri.Patients with SS had a significantly high SIR for developing non-Hodgkin’s lymphoma.Within 3 years of IIM diagnosis,74.6%of the patients developed cancer and they had a high risk of ovarian cancer.RA was associated with a wide distribution of scancers,including non-Hodgkin’s lymphoma,gynecologic,urinary tract,thyroid gland and lung cancers.SSc patients had increased SIRs for developing cervical uterine,lung,and breast cancers.Conclusion:Patients with five major AIDs in China had an increased risk of developing cancer,with a predominance in women and younger patients,although cancer incidence,predilection sites and cancer onset time may vary greatly in each AID entity.Ziyue Zhou Huazhen Liu Yiying Yang Jingya Zhou Lidan Zhao Hua Chen Yunyun Fei Wen Zhang Mengtao Li Yan Zhao Xiaofeng Zeng Fengchun Zhang Huaxia Yang Xuan Zhang 2022Cancer Communications2022,42,5:4
返回顶部 每页显示:
共7页 首页 上一页 第1页 下一页 末页 /7 跳转

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

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

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费