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582篇 您的检索式:作者名="WANG WeiMin"
    题名 作者 年代 出处 被引量
1Optimization of phenol degradation by Candida tropicalis Z-04 using Plackett-Burman design and response surface methodology显示文摘Statistical experimental designs were used to optimize the process of phenol degradation by Candida tropicalis Z-04,isolated from phenol-degrading aerobic granules.The most important factors influencing phenol degradation (p<0.05),as identified by a two-level Plackett-Burman design with 11 variables,were yeast extract,phenol,inoculum size,and temperature.Steepest ascent method was undertaken to determine the optimal regions of these four significant factors.Central composite design (CCD) and response surface analysis were adopted to further investigate the mutual interactions between these variables and to identify their optimal values that would generate maximum phenol degradation.The analysis results indicated that interactions between yeast extract and temperature,phenol and temperature,inoculum size and temperature affected the response variable (phenol degradation) significantly.The predicted results showed that the maximum removal efficiency of phenol (99.10%) could be obtained under the optimum conditions of yeast extract 0.41 g/L,phenol 1.03 g/L,inoculum size 1.43% (V/V) and temperature 30.04°C.These predicted values were further verified by validation experiments.The excellent correlation between predicted and experimental values confirmed the validity and practicability of this statistical optimum strategy.This study indicated the excellent ability of C.tropicalis Z-04 in degrading high-strength phenol.Optimal conditions obtained in this experiment laid a solid foundation for further use of this microorganism in the treatment of highstrength phenol effluents.Jiangya Zhou Xiaojuan Yu Cong Ding Zhiping Wang Qianqian Zhou Hao Pao Weimin Ca 2011Journal of Environmental Sciences2011,23,1:48
2The Genome of Artemisia annua Provides Insight into the Evolution of Asteraceae Family and Artemisinin Biosynthesis显示文摘Artemisia annua,通常已知的同样香甜的苦恼或 Qinghao,是到中国的一个灌木土著人并且长被用于药用的目的。A。annua 现在作为有势力抗疟药混合物的唯一的生来的来源全球性被栽培, artemisinin。这里,我们报导 A 的 1.74-gigabase 染色体的一个高质量的草稿集会。annua,高度异质接合,富于重复定序,并且包含 63 ? 226 编码蛋白质的基因,在定序的植物种类之中的最大的数字之一。我们发现了那,作为在 Asteraceae 的一些定序的染色体之一, A。annua 染色体包含对这大被子植物 clade 特定的很多基因。尤其是,扩大和编码涉及萜烯生合成的酶的基因的功能的多样化与 artemisinin biosynthetic 小径的进化一致。我们进一步由介绍那 A 的 transcriptome 揭示了。annua 发展了复杂 transcriptional 规章的网络位于 \O 下面 artemisinin 生合成。把转基因的 A 基于我们产生了的全面 genomic 和 transcriptomic 分析。artemisinin 高级的生产的 annua 线,它现在为大规模生产准备好了并且将从而帮助遇见增加 artemisinin 的全球需求的挑战。Qian Shen Lida Zhang Zhihua Liao Shengyue Wang Tingxiang Yan Pu Shi Meng Liu Xueqing Fu Qifang Pan Yuliang Wang Zongyou Lv Xu Lu Fangyuan Zhang Weimin Jiang Yanan Ma Minghui Chen Xiaolong Hao Ling Li Yueli Tang Gang Lv Yan Zhou Xiaofen Sun Peter E. Brodelius Jocelyn K.C. Rose Kexuan Tang 2018Molecular Plant2018,11,6:47
3Changes of net primary productivity in China during recent 11 years detected using an ecological model driven by MODIS data显示文摘网主要生产率(NPP ) 是陆上的碳周期的一个重要部件。精确地在中国印射 NPP 的空间时间的变化为全球碳骑车是关键的学习。在这研究,基于过程的北方的生态系统生产率模拟器(BEPS ) 被采用从 2000 ~ 2010 为时期在中国的生态系统学习 NPP 的变化。BEPS 模型首先用在在不同区域测量的典型流动地点和森林 NPP 测量的粗野主要生产率(GPP ) 被验证。然后,它与叶区域索引( LAI )被驾驶从中等分辨率成像分光辐射函数( MODIS )反射和陆地盖子产品和气象学的数据的 inversed 在 753 个国家基本气象学的车站从观察插入内推从1月1日在每日的时间步和 500 m 的空间分辨率模仿 NPP , 2000 到2010年12月31日。确认证明 BEPS 能在中国的不同区域捕获基于塔的 GPP 的季节的变化和森林 NPP 的空间可变性。年度 NPP 的估计的国家总数从 2.63 变化了到 2.84Pg C 獥吗?Yibo LIU Weimin JU Honglin HE Shaoqiang WANG Rui SUN Yuandong ZHANG 2013Frontiers of Earth Science2013,7,1:30
4Interfacial Effects of Superhydrophobic Plant Surfaces: A Review显示文摘Guiyuan Wang Zhiguang Guo Weimin Liu 2014Journal of Bionic Engineering2014,11,3:28
5Orbit determination of Chang'E-3 and positioning of the lander and the rover显示文摘Chang’E-3 landed on the east of Sinus Iridum area on December 14,2013,performing China’s first successful soft landing on the lunar surface.We present the results on precision orbit determination and positioning of the lander and the rover.We describe the data,modeling,and methods used to achieve position knowledge over the period December 2–21,2014.In addition to the radiometric X-band range and Doppler tracking data,delta differential one-way ranging data are also used in the calculation,which show that they strongly improve the accuracy of the orbit reconstruction.Total position overlap differences are about 20 and 30 m for the 100 km 9 100 km and100 km9 15 km lunar orbit,respectively,increased by*50%with respect to CE-2 and at the same level as other lunar spacecrafts of recent era such as SELENE and lunar reconnaissance orbiter(LRO).The position error of the soft landing trajectory is less than 100 m.A kinematic statistical method is applied to determine the position of the lander and relative position of the rover with respect to the lander.The position difference of the lander is better than50 m compared to LRO photograph result.Compared with the delta very long baseline interferometry(VLBI)group delay between the lander and the rover,the delta VLBI phase delay can improve the relative position of the rover from*1,000 to*1 m.Yong Huang Shengqi Chang Peijia Li Xiaogong Hu Guangli Wang Qinghui Liu Weimin Zheng Min Fan 2014Chinese Science Bulletin2014,59,29:28
6Altered trends in carbon uptake in China’s terrestrial ecosystems under the enhanced summer monsoon and warming hiatus显示文摘The carbon budgets in terrestrial ecosystems in China are strongly coupled with climate changes.Over the past decade,China has experienced dramatic climate changes characterized by enhanced summer monsoon and decelerated warming.However,the changes in the trends of terrestrial net ecosystem production(NEP)in China under climate changes are not well documented.Here,we used three ecosystem models to simulate the spatiotemporal variations in China's NEP during 1982–2010 and quantify the contribution of the strengthened summer monsoon and warming hiatus to the NEP variations in four distinct climatic regions of the country.Our results revealed a decadal-scale shift in NEP from a downtrend of–5.95 Tg C/yr^2(reduced sink)during 1982–2000 to an uptrend of 14.22 Tg C/yr^2(enhanced sink)during 2000–10.This shift was essentially induced by the strengthened summer monsoon,which stimulated carbon uptake,and the warming hiatus,which lessened the decrease in the NEP trend.Compared to the contribution of 56.3%by the climate effect,atmospheric CO2 concentration and nitrogen deposition had relatively small contributions(8.6 and 11.3%,respectively)to the shift.In conclusion,within the context of the global-warming hiatus,the strengthening of the summer monsoon is a critical climate factor that enhances carbon uptake in China due to the asymmetric response of photosynthesis and respiration.Our study not only revealed the shift in ecosystem carbon sequestration in China in recent decades,but also provides some insight for understanding ecosystem carbon dynamics in other monsoonal areas.Honglin He Shaoqiang Wang Li Zhang Junbang Wang Xiaoli Ren Lei Zhou Shilong Piao Hao Yan Weimin Ju Fengxue Gu Shiyong Yu Yuanhe Yang Miaomiao Wang Zhongen Niu Rcmg Ge Huimin Yan Mei Huang Guoyi Zhou Yongfei Bai Zongqiang Xie Zhiyao Tang Bingfang Wu Leiming Zhang Nianpeng He Qiufeng Wang Guirui Yu 2019National Science Review2019,6,3:24
7Age-related rhesus macaque models of COVID-19显示文摘Background:Since December 2019,an outbreak of the Corona Virus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus(SARS-CoV-2)in Wuhan,China,has become a public health emergency of international concern.The high fatality of aged cases caused by SARS-CoV-2 was a need to explore the possible age-related phenomena with non-human primate models.Methods:Three 3-5 years old and two 15 years old rhesus macaques were intratracheally infected with SARS-CoV-2,and then analyzed by clinical signs,viral replication,chest X-ray,histopathological changes and immune response.Results:Viral replication of nasopharyngeal swabs,anal swabs and lung in old monkeys was more active than that in young monkeys for 14 days after SARS-CoV-2 challenge.Monkeys developed typical interstitial pneumonia characterized by thickened alveolar septum accompanied with inflammation and edema,notably,old monkeys exhibited diffuse severe interstitial pneumonia.Viral antigens were detected mainly in alveolar epithelial cells and macrophages.Conclusion:SARS-CoV-2 caused more severe interstitial pneumonia in old monkeys than that in young monkeys.Rhesus macaque models infected with SARS-CoV-2 provided insight into the pathogenic mechanism and facilitated the development of vaccines and therapeutics against SARS-CoV-2 infection.Pin Yu Feifei Qi Yanfeng Xu Fengdi Li Peipei Liu Jiayi Liu Linlin Bao Wei Deng Hong Gao Zhiguang Xiang Chong Xiao Qi Lv Shuran Gong Jiangning Liu Zhiqi Song Yajin Qu Jing Xue Qiang Wei Mingya Liu Guanpeng Wang Shunyi Wang Haisheng Yu Xing Liu Baoying Huang Wenling Wang Li Zhao Huijuan Wang Fei Ye Weimin Zhou Wei Zhen Jun Han Guizhen Wu Qi Jin Jianwei Wang Wenjie Tan Chuan Qin 2020Animal Models and Experimental Medicine2020,3,1:22
8An operational two-layer remote sensing model to estimate surface flux in regional scale: Physical background显示文摘Based on the improved interaction mechanism of two-layer model, this paper proposed Pixel Component Arranging and Comparing Algorithm (PCACA) and theoretically positioning algorithm, estimated the true temperature of mixed pixel in four extreme points in combination with the measurements of dry and wet points in calibration fields and improved the reliability of positioning dry and wet line. A new two-layer energy-separation algorithm was proposed,which was simple and direct without resistance network parameters for each pixel. We also proposed a new thought about the effect of advection. The albedo of mixed pixel was also separated with PCACA. In combination with two-layer energy-separation algorithm, the net radiation of mixed pixel was separated to overcome the uncertainty of conventional energy-separation algorithm using Beer's Law. Through the validation of retrieval result, this method is proved to be feasible and operational. At the same time, the uncertainty of this algorithm was objectively analyzed.ZHANG Renhua SUN Xiaomin WANG Weimin XU Jinping ZHU Zhilin TIAN Jing 2005Science China Earth Sciences2005,48,z1:16
9PRMT5 regulates Golgi apparatus structure through methylation of the golgin GM130显示文摘Golgi 仪器(GA ) 的维护结构和功能取决于 Golgi 矩阵蛋白质。象 golgin 和掌握家庭的成员的 phosphorylation 那样的 Golgi 蛋白质的 posttranslational 修正为决定 Golgi 建筑学是重要的。包括 golgin-84 的一些 Golgi 蛋白质也被知道是 methylated,但是 golgin methylation 的功能仍然保持不清楚。这里,我们证明蛋白质精氨酸 methyltransferase (PRMT5 ) 5 本地化到 GA 和形式建筑群,几个部件在拴住的 GA 带子形成和泡包含了。PRMT5 在 Golgi 带子形成与 PRMT5 原因缺点的 golgin GM130,和弄空交往。而且,在 GM130 的 PRMT5 甲醇化物 N 终端精氨酸,和如此的精氨酸 methylation 为 GA 显得批评带子形成。我们的调查结果揭示 GM130 的 PRMT5 依赖的精氨酸 methylation 由控制 GA 建筑学的维护的分子的机制。Zhongwei Zhou Xiaotian Sun Zhenhua Zou Litao Sun Tao Zhang Shaoshi Guo Ya Wen Lin Liu Yi Wang Jun Qin Lei Li Weimin Gong Shilai Bao 2010Cell Research2010,20,9:16
10Reversal of B-cell hyperactivation and functional impairment is associated with HBsAg seroconversion in chronic hepatitis B patients显示文摘B 房间对再感染在肝炎 B 病毒(HBV ) 和保护的清理起一个重要作用。然而,与长期的 HBV 感染的结果被联系的这些房间的功能的特征仍然保持未知。我们包括地在不同阶段从 CHB 病人调查了外部 B 房间子集的频率,显型,和功能:有免疫力的忍耐(信息技术) ,有免疫力的激活(IA ) ,有免疫力的清理(IC ) ,有 HBsAg seroconversion 的应答者(解决的病人, RP ) ,并且健康控制(HC ) 。IA 病人与另外的组相比显示了外部血记忆 B 房间的更低的百分比。B 房间的全面 polyclonal 激活,由激活标记和 IgG 和 IgM 的分泌物的高水平显示了,在 IA 病人被观察。这 B 房间 hyperactivation 能被增加的 IFN-α 导致;并且在 IA 病人的可溶的 CD40 ligands。尤其是,合作激发器分子 CD80 和浆液 HBsAb 的表示和 HBsAg 特定的 B 房间的频率显著地与 HC 题目相比在信息技术, IA,和 IC 病人被减少。更重要地, B 房间 hyperactivation, co-stimulatory 分子 downregulation 和 HBsAg 特定的 B 房间缺陷在 RP 病人被颠倒。B 房间 hyperactivation 和功能的缺陷的颠倒在长期的肝炎 B 病人与 HBsAg seroconversion 被联系。Xiangsheng Xu Qinghua Shang Xinyue Chen Weimin Nie Zhengsheng Zou Ang Huang Ming Meng Lei Jin Ruonan Xu Ji-Yuan Zhang Junliang Fu Lifeng Wang Zirong Tang Yunbo Xie Xiaoming Yang Zheng Zhang Fu-Sheng Wang 2015Cellular & Molecular Immunology2015,12,3:15
11Preparation and Characterization of KNO3/Diatomite Shape-Stabilized Composite Phase Change Material for High Temperature Thermal Energy Storage显示文摘A new potassium nitrate(KNO_3)/diatomite shape-stabilized composite phase change material(SSCPCM) was prepared by the mixing and sintering method. KNO_3 served as the phase change material(PCM) for thermal energy storage, while diatomite acted as the carrier matrix to provide the structural strength and prevent the leakage of PCM. It was found that KNO_3 could be retained 65 wt% into pores and on surfaces of diatomite without the leakage of melted KNO_3 from the SS-CPCM. The calculated filling rate of molten KNO_3 that could enter into the disc-like shape pore of diatomite verified the scanning electronic microscopy images of SS-CPCM. X-ray diffraction and Fourier transform infrared spectroscopy results showed that no reaction occurred between KNO_3 and diatomite, performing good compatibility. According to the differential scanning calorimetry results, after 50 thermal cycles, the phase change temperatures for melting and freezing of SS-CPCM with 65 wt% KNO_3 were changed from 330.23 °C and 332.90 °C to330.11 °C and 332.84 °C and corresponding latent heats varied from 60.52 J/g and 47.30 J/g to 54.64 J/g and 41.25 J/g, respectively. The KNO_3/diatomite SS-CPCM may be considered as a potential storage media in solar power plants for thermal energy storage.Yong Deng Jinhong Li Tingting Qian Weimin Guan Xiang Wang 2017Journal of Materials Science & Technology2017,33,2:15
12H2A.Z Represses Gene Expression by Modulating Promoter Nucleosome Structure and Enhancer Histone Modifications in Arabidopsis显示文摘Xiaozhuan Dai Youhuang Bai Lihua Zhao Xianying DOU Yanhui Liu Lulu Wang Yi Li Weimin Li Yanan Hui Xinyu Huang Zonghua Wang Yuan Qin 2017Molecular Plant2017,10,10:14
13TRAIL receptor mediates inflammatory cytokine release in an NF-κB-dependent manner显示文摘在现在的文章,我们报导 DR4 或 DR5 overexpression 戏剧性地在 293T, MDA-MB-231 和 HCT-116 房间以一种 NF-魏 B 依赖者方式激活煽动性的 cytokines IL-8, TNF- 伪, CCL20, MIP-2 和 MIP-1 尾的版本。我们显示出调停受体的信号是的那死亡细胞外域无关,而 DR4 细胞内部的领域的 overexpression 的效果是少得多有势力。表明串联的 TRADD-TRAF2-NIK-IKK 伪 / 尾,在导致 TNF 的 NF-魏 B 激活起一个必要作用,被发现涉及肿瘤坏死因素相关导致 apoptosis ligand (小道) 调停受体的信号 transduction。表明小径的 FADD-caspase,被报导了主要与 apoptosis 有关,作为与表明串联的 TRADD-TRAF2-NIK-IKK 伪 / 尾为 DR4 或 DR5 调停 overexpression 的 NF-魏 B 激活和 cytokine 分泌物和串音是必要的被识别。而且, DR5 论战的抗体(AD5-10 ) 触发了煽动性的 cytokine 版本。这些数据和以前的报告,提供小道和小道受体在发炎起一个重要作用的充分证据。Wanhu Tang Weimin Wang Yaxi Zhang Shilian Liu Yanxin Liu Dexian Zheng 2009Cell Research2009,19,6:14
14Experimental research on coal seam similar material proportion and its application显示文摘In this paper, the optimization design of the low strength mechanical test and orthogonal test have been analyzed in order to simulate the mechanical properties of thick and extra-thick coal seam accurately in a similar material simulation test. The results show that the specimen can reach a wider range of strength when cement has been used compared to that of gypsum, suggesting that cement is more suitable for making coal seam in similar material simulation tests. The uniaxial compressive strength is more sensitive to cement than coal or sand. The proportion of coal and sand do not play a decisive role in uniaxial compressive strength. The uniaxial compressive strength and specimen density decrease as the mass percent of coal and aggregate–binder ratio rise. There is a positive correlation between uniaxial compressive strength and density. The No. 5 proportion(cement: sand: water: activated carbon: coal = 6:6:7:1.1:79.9)was chosen to be used in the similar material simulation test of steeply dipping and extra-thick coal seam with a density of 0.913 g/cm^3 and an uniaxial compressive strength of 0.076 MPa which are in accordance with the similarity theory. The phenomenon of overburden stratum movement, fracture development and floor pressure relief were obtained during the similar material simulation test by using the proportion.Cheng Weimin Sun Lulu Wang Gang Du Wenzhou Qu Hongyuan 2016International Journal of Mining Science and Technology2016,26,5:12
15Combined treatment with erythropoietin and granulocyte colony-stimulating factor enhances neovascularization and improves cardiac function after myocardial infarction显示文摘Xue Jingyi Du Guoqing Shi Jing Li Yue Masahiro Yasutake Liu Lei Li Jianqiang Kong Yihui Wang Shuxian Yun Fengxiang Li Weimin 2014Chinese Medical Journal2014,,9:12
16Structural insights into a novel histone demethylase PHF8显示文摘histone methylation/demethylation 的动态规定在开发期间起一个重要作用。在人的植物 homeodomain (哲学博士) 的变化和截断摸蛋白质 8 (PHF8 ) 与 X 连接智力迟钝和面部异例被联系,例如一张长脸,宽广鼻音尖端,劈开 lip/cleft 腭和大手,然而,它的分子的功能和结构的基础仍然保持不清楚。这里,我们在高分辨率报导 PHF8 的催化核心的水晶结构与或没有伪 - ketoglutarate (伪 - KG ) 。生物化学、结构的研究表明 PHF8 是为甲醇化物 di 、单音甲醇化物的 histone H3 离氨酸 9,然而并非为 H3K9me3 特定的新奇 histone demethylase (H3K9me2/1 ) 。我们的分析也揭示人的 PHF8 怎么在 methylation 状态之间区别并且为 methylated H3K9 完成顺序特性。在里面 vitro demethylation 试金也证明在临床的病人观察的 F279S 异种不拥有 demethylation 活动,建议酶的活动的那损失为 PHF8 病人的致病是关键的。一起拿,这些结果将使位于联系 PHF8 的发展、神经病学的疾病下面的分子的机制清楚些。Lin Yu Yang wang Shuo Huang Jianjun Wang Zengqin Deng Qi Zhang Wei Wu Xingliang Zhang Zhao Liu Weimin Gong Zhongzhou Chen 2010Cell Research2010,20,2:11
17Enhancement of acellular cartilage matrix scaffold by Wharton’s jelly mesenchymal stem cell-derived exosomes to promote osteochondral regeneration显示文摘Articular cartilage defect repair is a problem that has long plagued clinicians.Although mesenchymal stem cells(MSCs)have the potential to regenerate articular cartilage,they also have many limitations.Recent studies have found that MSC-derived exosomes(MSC-Exos)play an important role in tissue regeneration.The purpose of this study was to verify whether MSC-Exos can enhance the reparative effect of the acellular cartilage extracellular matrix(ACECM)scaffold and to explore the underlying mechanism.The results of in vitro experiments show that human umbilical cord Wharton’s jelly MSC-Exos(hWJMSC-Exos)can promote the migration and proliferation of bone marrow-derived MSCs(BMSCs)and the proliferation of chondrocytes.We also found that hWJMSC-Exos can promote the polarization of macrophages toward the M2 phenotype.The results of a rabbit knee osteochondral defect repair model confirmed that hWJMSC-Exos can enhance the effect of the ACECM scaffold and promote osteochondral regeneration.We demonstrated that hWJMSC-Exos can regulate the microenvironment of the articular cavity using a rat knee joint osteochondral defect model.This effect was mainly manifested in promoting the polarization of macrophages toward the M2 phenotype and inhibiting the inflammatory response,which may be a promoting factor for osteochondral regeneration.In addition,microRNA(miRNA)sequencing confirmed that hWJMSC-Exos contain many miRNAs that can promote the regeneration of hyaline cartilage.We further clarified the role of hWJMSC-Exos in osteochondral regeneration through target gene prediction and pathway enrichment analysis.In summary,this study confirms that hWJMSC-Exos can enhance the effect of the ACECM scaffold and promote osteochondral regeneration.Shuangpeng Jiang Guangzhao Tian Zhen Yang Xiang Gao Fuxin Wang Juntan Li Zhuang Tian Bo Huang Fu Wei Xinyu Sang Liuqi Shao Jian Zhou Zhenyong Wang Shuyun Liu Xiang Sui Quanyi Guo Weimin Guo Xu Li 2021Bioactive Materials2021,6,9:11
18Experimental Investigation on Vibration Control of Rotor-bearing System with Active Magnetic Exciter显示文摘Vibration control is an efficient way to minimize a rotating machine's vibration level so that its vibration fault-free can be realized.While,several factors,such as unbalance,misalignment and instability,contribute to the serious vibration of rotating machines.It is necessary that one apparatus can depress vibration caused by two or more reasons.The fault self-recovery(FSR) mechanism is introduced and investigated.Strategies of vibration control are investigated theoretically using numerical method firstly.Active magneticelectric exciter(AME) are selected as the actuator of a FSR device because it can provide suitable force by varying the control current in the exciters depending upon a proportional and derivative control law.By numerical study,it is indicate that only a small control force is needed to improve stability margins of the compressor and prevent subsynchronous vibration fault efficiently.About synchronous vibration,three control strategies,searching in whole circle,fast optimizing control(FOC),and none mistaking control,are investigated to show which of the control strategy can realize the fault self-recovery in the shortest time.Experimental study is conducted on a test rig with variable rotating speed.Results of the test indicate that the non-mistake control strategy can minimize synchronous vibration in less than three seconds.The proposed research can provide a new insight for subsynchronous and synchronous vibration restraining about centrifugal compressor.WANG Weimin GAO Jinji HUANG Liquan XIN Zhengqiu 2011Chinese Journal of Mechanical Engineering2011,24,6:11
19A new prognostic histopathologic classification of nasopharyngeal carcinoma显示文摘Background:The current World Health Organization(WHO) classification of nasopharyngeal carcinoma(NPC) con?veys little prognostic information.This study aimed to propose an NPC histopathologic classification that can poten?tially be used to predict prognosis and treatment response.Methods:We initially developed a histopathologic classification based on the morphologic traits and cell differentia?tion of tumors of 2716 NPC patients who were identified at Sun Yat?sen University Cancer Center(SYSUCC)(training cohort).Then,the proposed classification was applied to 1702 patients(retrospective validation cohort) from hospitals outside SYSUCC and 1613 patients(prospective validation cohort) from SYSUCC.The efficacy of radiochemotherapy and radiotherapy modalities was compared between the proposed subtypes.We used Cox proportional hazards models to estimate hazard ratios(HRs) with 95% confidence intervals(CI) for overall survival(OS).Results:The 5?year OS rates for all NPC patients who were diagnosed with epithelial carcinoma(EC;3708 patients),mixed sarcomatoid?epithelial carcinoma(MSEC;1247 patients),sarcomatoid carcinoma(SC;823 patients),and squamous cell carcinoma(SCC;253 patients) were 79.4%,70.5%,59.6%,and 42.6%,respectively(P < 0.001).In mul?tivariate models,patients with MSEC had a shorter OS than patients with EC(HR = 1.44,95% CI = 1.27–1.62),SC(HR = 2.00,95% CI = 1.76–2.28),or SCC(HR = 4.23,95% CI = 3.34–5.38).Radiochemotherapy significantly improved survival compared with radiotherapy alone for patients with EC(HR 49–0.75),and possibly for those with SCC(HR = 0.67,95% CI = 0.56–0.80),MSEC(HR = 0.58,95% CI = 0..74–1.28).= 0.63;95% CI = 0.40–0.98),but not for patients with SC(HR = 0.97,95% CI = 0Conclusions:The proposed classification offers more information for the prediction of NPC prognosis compared with the WHO classification and might be a valuable tool to guide treatment decisions for subtypes that are associ?ated with a poor prognosis.Hai-Yun Wang Yih-Leong Chang Ka-Fai To Jacqueline S.G.Hwang Hai-Qiang Mai Yan-Fen Feng Ellen T.Chang Chen-Ping Wang Michael Koon Ming Kam Shie-Lee Cheah Ming Lee Li Gao Hui-Zhong Zhang Jie-Hua He Hao Jiang Pei-Qing Ma Xiao-Dong Zhu Liang Zeng Chun-Yan Chen Gang Chen Ma-Yan Huang Sha Fu Qiong Shao An-Jia Han Hai-Gang Li Chun-Kui Shao Pei-Yu Huang Chao-Nan Qian Tai-Xiang Lu Jin-Tian Li Weimin Ye Ingemar Ernberg Ho Keung Ng Joseph T.S.Wee Yi-Xin Zeng Hans-Olov Adami Anthony T.C.Chan Jian-Yong Shao 2016Chinese Journal of Cancer2016,35,6:10
20Cytological and Molecular Characteristics of Pollen Abortion in Lily with Dysplastic Tapetum显示文摘Lily was grown worldwide as a fresh cutting flower because of its colorful petals, but its anther contained a large number of pollen grains that cause serious pollen contamination, however, pollen abortion can effectively reduce the level of pollen pollution. Our analysis aims to use cytological observation to detect the critical stage when pollen abortion occurs and to provide comprehensive gene expression information at the transcriptional level. The result showed that pollen abortion in ‘Little Kiss’ began at the mononuclear stage and the callose that covers the microspores failed to degenerate when young pollens were released from the tetrads. In addition, compared with the normally developed one,the tapetum of ‘Little Kiss’ degraded in advance while the degradation of callose was delayed. Furthermore, 103 differentially expressed genes(DEGs) related to the advance degeneration of tapetum cells and callose were found in the expression levels, including 22 transcription factors(TFs). In particular, two β-glucanase genes(endo-1,3(4)-β-glucanase, exo-β-glucanase) responsible for callose degeneration were significantly down-regulated. These results suggested that pollen abortion may occur at mononuclear stage and that early degeneration of tapetum cells resulted in a significant down-regulation of β-glucanase genes. As a result, the callose to cover microspores impedes the formation of pollen walls, which may possibly lead to pollen abortion.Xueqian Wang Ze Wu Lanqing Wang Meijiao Wu Dehua Zhang Weimin Fang Fadi Chen Nianjun Teng 2019Horticultural Plant Journal2019,5,6:9
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