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    题名 作者 年代 出处 被引量
1Apoptosis induced by norcantharidin in human tumor cells显示文摘INTRODUCTIONThe antitumor activity of norcantharidin (NCTD),the demethylated analogue of cantharidin,wasstudied in the early 1980s in China.NCTD has noside effects on urinary organs which cantharidin hasshown and is easier to synthesize,and it can inhibitthe proliferation of several tumor cell lines as wellas transplanted tumors.Clinical trials with NCTD asa monotherapeutic agent indicated that NCTD hadbeneficial effects in patients with different kindsZhen Xiao Sun Qing Wen Ma Tian De Zhao Yu Lin Wei Guang Sheng Wang Jia Shi Li 2000World Journal of Gastroenterology2000,6,2:31
2Effects of large dose of dexamethasone on inflammatory mediators and pancreatic cell apoptosis of rats with severe acute pancreatitis显示文摘AIM: To investigate the influence of high dose of dexamethasone on inflammatory mediators and apoptosis of rats with severe acute pancreatitis (SAP). METHODS: SAP rats were randomly assigned to the model group and treatment group while the normal rats were assigned to the sham operation group. The mortality,ascite volumes,ascites/body weight ratio and pancreas pathological changes of all rats were observed at 3,6 and 12 h after operation. Their contents of amylase and endotoxin in plasma and contents of tumor necrosis factor (TNF-α),phospholipase A2 (PLA2) and IL-6 in serum were also determined. The microarray sections of their pancreatic tissues were prepared,terminal transferase dUTP nick end labeling (TUNEL) staining was performed and apoptotic indexes were calculated. RESULTS: There was no marked difference between treatment group and model group in survival. The contents of amylase and endotoxin in plasma and contents of TNF-α,PLA2 and IL-6 in serum,ascite volumes,ascites/body weight ratio and pancreas pathological scores were all lower in treatment group than in model group to different extents at different time points P < 0.05,58.3 (26.4) ng/L vs 77.535 (42.157) ng/L in TNF-α content,8.00 (2.00) points vs 9.00 (2.00) points in pathological score of pancreas respectively; P < 0.01,0.042 (0.018) EU/mL vs 0.056 (0.0195) EU/mL in endotoxin content,7791 (1863) U/L vs 9195 (1298) U/L in plasma amylase content,1.53 (0.79) vs 2.38 (1.10) in ascites/body weight ratio,8.00 (1.00) points vs 11.00 (1.50) points in pathological score of pancreas; P < 0.001,3.36 (1.56) ng/L vs 5.65 (1.08) ng/L in IL-6 content,4.50 (2.00) vs 7.20 (2.00),4.20 (1.60) vs 6.40 (2.30),3.40 (2.70) vs 7.90 (1.70) in ascite volumes,respectively. The apoptotic indexes of pancreas head and pancreas tail were all higher in treatment group than in model group at 6 h P < 0.01,0.00 (2.00)% vs 0.00 (0.00)%,0.20 (1.80) vs 0.00 (0.00) in apoptosis indexes,respectively. CONCLUSION: The mechanism of dexamethasone treatment in acute pancreatitis is related to its inhibition of inflammatory mediator generation and induction of pancreatic acinar cell apoptosis.Xi-Ping Zhang Li Chen Qi-Fang Hu Hua Tian Ru-Jun Xu Zhi-Wei Wang Ke-Yi Wang Qi-Hui Cheng Wei Yan Yun Li Qing-Yu Li Qing He Fei Wang 2007World Journal of Gastroenterology2007,13,41:29
3The Hardy Rubber Tree Genome Provides Insights into the Evolution of Polyisoprene Biosynthesis显示文摘Eucommia ulmoides,也叫的强壮的橡胶树,是一棵经济地重要的树;然而,它的染色体顺序的缺乏 ?限制基本生物研究和这植物种的应用研究。这里,我们在场它的 1.2-Gb 染色体的一个高质量的集会(支架 N50 ?=? 1.88 Mb ) 与至少 26 ? 为 E 的 723 预言的基因。ulmoides,顺序 Garryales 的首先定序的染色体,它用联合定序的 Illumina 的综合策略被获得,定序的 PacBio,和印射的 BioNano。作为到 lamiids 和 campanulids 的姐妹 taxon, E。ulmoides 经历了三倍由核心 eudicots 而是没有进一步整个染色体的复制分享了的一个古老的染色体 ? 在最后 1.25 亿年里。E。ulmoides 为涉及压力回答和第二等的代谢物的生合成的多重基因展出高表达式层次或基因数字扩大,它可以说明它的可观的环境适应性。与橡胶树(Hevea brasiliensis ) 相对照,它生产 cis 聚异式戊二我烯, E。ulmoides 演变综合经由 farnesyl diphosphate synthases (FPS ) 的长链的 trans 聚异式戊二我烯。而且, FPS 和橡胶延伸 factor/small 橡胶粒子蛋白质基因家庭从 H 独立地被扩展。brasiliensis 系。这些结果提供新卓见进 E. 的生物学 ? ulmoides 和聚异式戊二我烯生合成的起源。Ta-na Wuyun Lin Wang Huimin Liu Xuewen Wang Liangsheng Zhang Jeffrey L. Bennetzen Tiezhu Li Lirong Yang Panfeng Liu Lanying Du Lu Wang Mengzhen Huang Jun Qing Iili Zhu Wenquan Bao Hongguo Li Qingxin Du Jingle Zhu Hong Yang Shuguang Yang Hui Liu Hui Yue Jiang Hu Suoliang Yu Yu Tian Fan Liang Jingjing Hu Depeng Wang Ruiwen Gao Dejun Li Hongyan Du 2018Molecular Plant2018,11,3:24
4Endobronchial ultrasound-guided transbronchial needle aspiration of undiagnosed mediastinal lymphadenopathy显示文摘背景 Endobronchial 指导超声的 transbronchial 针渴望( EBUS-TBNA )能取样由常规 bronchoscopy.It 不能到达的扩大 mediastinal 淋巴节点是一个相对简单、安全的方法在远处看见支气管的 tree.We 从2009年7月描述并且讨论它的起始的申请和我们的 experience.Methods 到2009年12月,有 undiagnosed 的 52 个病人扩大了 mediastinal 淋巴节点在人们的解放军队霍斯皮塔尔克将军与 EBUS-TBNATIAN Qing CHEN Liang-an WANG Hui-shuang ZHU Bao-hua TIAN Lei YANG Zhen AN Yang 2010Chinese Medical Journal2010,,16:19
5Cloning, expression and biocharacterization of OfCht5, the chitinase from the insect Ostrinia furnacalis显示文摘Chitinase 在几丁质催化 -1,4-glycosidic 连接并且由于它吸引了研究兴趣为 N 乙酰的准备是一个潜在的杀虫剂目标和一个酶的工具 -- D-glucosamine。一只单个昆虫包含编码 chitinases 的多重基因,它在域体系结构,表达式模式,生理的角色和生物化学的性质变化。此处, OfCht5, glycoside hydrolase 家庭从普遍鳞翅类的害虫 Ostrinia furnacalis 的 18 chitinase,被克隆,在酵母 Pichia pastoris 表示了并且生物化学地在一次尝试描绘了便于害虫控制和 biomaterial 准备。互补 DNA 顺序分析显示 OfCHT5 由 1 665-bp 核苷酸的一个开的读物框架组成了。系统发生的分析建议 OfCht5 属于这个组我昆虫 chitinases。在 Pichia pastoris 的 OfCht5 的表示与甲醇在正式就职的 120 h 以后导致了最高特定的活动。通过纯化的二步,由铵硫酸盐降水和金属 chelating 层析组成, recombinant OfCht5 的大约 7 mg 从 1 L 文化上层清液被净化到同质。OfCht5 有效地把胶体的几丁质变换成 chitobiose,但是向几丁质举办了相对低的活动。什么时候 chitooligosaccharides [(GlcNAc ) n, n= 36 ] 被用作底层, OfCht5 被观察拥有最高催化的效率参数向(GlcNAc ) 4 并且 predominantely hydrolyzed 从非减少的结束的第二张 glycosidic 契约。和 -N-acetyl-D-hexosaminidase OfHex1, OfCht5 在产出 N 乙酰的几丁质降级完成了它的最高的效率 -- D-glucosamine,珍贵药理学试剂和食物补充,在在 9 的范围的 OfCht5 对 OfHex1 的臼齿的集中比率以内:115:1。这个工作为杀虫剂和另外的应用提供一种选择给 chitinase 的存在准备。Qingyue Wu Tian Liu Qing Yang 2013Insect Science2013,20,2:19
6High-speed maneuvering target detection approach based on joint RFT and keystone transform显示文摘Increasing the integration time is an effective method to improve small maneuvering target detection performance in radar applications.However,range migration and Doppler spread caused by maneuvering target motion during the integration time make it difficult to improve the coherent accumulation of target's energy and detection performance.In this study,a new method based on Radon Fourier transform(RFT) and keystone transform(KT) for high-speed maneuvering target detection is proposed.The proposed algorithm utilizes second-order KT to correct the range curvature,and the improved dechirping method to compensate for the Doppler spread.RFT is then used to correct the range walk for target coherent detection.The method is capable of correcting the range migration and the time-varied Doppler frequency of the target without knowing its velocity and acceleration.The advantage of the proposed method is that it can increase the coherent integration time and improve detection performance under the condition of Doppler frequency ambiguity.Compared with the second-order RFT algorithm,the computational burden of the proposed method is greatly reduced under the premise that the two methods have similar estimation accuracy of range,velocity and acceleration.Numerical experiments demonstrate the validity of the proposed algorithm.TIAN Jing CUI Wei SHEN Qing WEI ZiXiang WU SiLiang 2013Science China(Information Sciences)2013,56,6:19
7From concept to reality-A review to the primary test stand and its preliminary application in high energy density physics显示文摘Pulsed power technology,whereas the electrical energy stored in a relative long period is released in much shorter timescale,is an efficient method to create high energy density physics(HEDP)conditions in laboratory.Around the beginning of this century,China Academy of Engineering Physics(CAEP)began to build some experimental facilities for HEDP investigations,among which the Primary Test Stand(PTS),a multi-module pulsed power facility with a nominal current of 10 MA and a current rising time~90 ns,is an important achievement on the roadmap of the electro-magnetically driven inertial confinement fusion(ICF)researches.PTS is the first pulsed power facility beyond 10 TW in China.Therefore,all the technologies have to be demonstrated,and all the engineering issues have to be overcome.In this article,the research outline,key technologies and the preliminary HEDP experiments are reviewed.Prospects on HEDP research on PTS and pulsed power development for the next step are also discussed.Jianjun Deng Weiping Xie Shuping Feng Meng Wang Hongtao Li Shengyi Song Minghe Xia Ji Ce An He Qing Tian Yuanchao Gu Yongchao Guan Bin Wei Xianbin Huang Xiaodong Ren Jiakun Dan Jing Li Shaotong Zhou Hongchun Cai Siqun Zhang Kunlun Wang Qiang Xu Yujuan Wang Zhaohui Zhang Guilin Wang Shuai Guo Yi He Yiwei Zhou Zhanji Zhang Libing Yang Wenkang Zou 2016Matter and Radiation at Extremes2016,1,1:19
8Protective effects and mechanisms of Baicalin and octreotide on renal injury of rats with severe acute pancreatitis显示文摘AIM: To investigate the protective effects and mechanisms of Baicalin and octreotide on renal injury of rats with severe acute pancreatitis (SAP). METHODS: One hundred and eighty SD rats were randomly assigned to the model group, Baicalin-treated group, octreotide-treated group and sham operation group. The mortality, plasma endotoxin level, contents of blood urea nitrogen (BUN), creatinine (CREA), phospholipase A2 (PLA2), nitrogen monoxide (NO), tumor necrosis factor (TNF)-α, IL-6 and endothelin-1 (ET-1) in serum, expression levels of renal Bax and Bcl-2 protein, apoptotic indexes and pathological changes of kidney were observed at 3, 6 and 12 h after operation. RESULTS: The renal pathological changes were milder in treated group than in model group. The survival at 12 h and renal apoptotic indexes at 6 h were significantly (P < 0.05) higher in treated group than in model group [66.67% vs 100%; 0.00 (0.02)% and 0.00 (0.04)% vs 0.00 (0.00)%, respectively]. The serum CREA content was markedly lower in octreotide-treated group than in model group at 3 h and 6 h (P < 0.01, 29.200 ± 5.710 μmol/L vs 38.400 ± 11.344 μmol/L; P < 0.05, 33.533 ± 10.106 μmol/L vs 45.154 ± 17.435 μmol/L, respectively). The expression level of renal Bax protein was not significantly different between model group and treated groups at all time points. The expression level of renal Bcl-2 protein was lower in Baicalin-treated group than in model group at 6 h [P < 0.001, 0.00 (0.00) grade score vs 3.00 (3.00) grade score]. The Bcl-2 expression level was lower in octreotide-treated group than in model group at 6 h and 12 h [P < 0.05, 0.00 (0.00) grade score vs 3.00 (3.00) grade score; 0.00 (0.00) grade score vs 0.00 (1.25) grade score, respectively]. The serum NO contents were lower in treated groups than in model group at 3 h and 12 h [P < 0.05, 57.50 (22.50) and 52.50 (15.00) μmol/L vs 65.00 (7.50) μmol/L; P < 0.01, 57.50 (27.50) and 45.00 (12.50) μmol/L vs 74.10 (26.15) μmol/L, respectively]. The plasma endotoxin content and serum BUN content (at 6 h and 12 h) were lower in treated groups than in model group. The contents of IL-6, ET-1, TNF-α (at 6 h) and PLA2 (at 6 h and 12 h) were lower in treated groups than in model group [P < 0.001, 3.031 (0.870) and 2.646 (1.373) pg/mL vs 5.437 (1.025) pg/mL; 2.882 (1.392) and 3.076 (1.205) pg/mL vs 6.817 (0.810) pg/mL; 2.832 (0.597) and 2.462 (1.353) pg/mL vs 5.356 (0.747) pg/mL; 16.226 (3.174) and 14.855 (5.747) pg/mL vs 25.625 (7.973) pg/mL; 18.625 (5.780) and 15.185 (1.761) pg/mL vs 24.725 (3.759) pg/mL; 65.10 (27.51) and 47.60 (16.50) pg/mL vs 92.15 (23.12) pg/mL; 67.91 ± 20.61 and 66.86 ± 22.10 U/mL, 63.13 ± 26.31 and 53.63 ± 12.28 U/mL vs 101.46 ± 14.67 and 105.33 ± 18.10 U/mL, respectively]. CONCLUSION: Both Baicalin and octreotide can protect the kidney of rats with severe acute pancreatitis. The therapeutic mechanisms of Baicalin and octreotide might be related to their inhibition of inflammatory mediators and induction of apoptosis. Baicalin might be a promising therapeutic tool for severe acute pancreatitis.Xi-Ping Zhang Hua Tian Yue-Hong Lai Li Chen Ling Zhang Qi-Hui Cheng Wei Yan Yun Li Qing-Yu Li Qing He Fei Wang 2007World Journal of Gastroenterology2007,13,38:17
9The China Multi-Model Ensemble Prediction System and Its Application to Flood-Season Prediction in 2018显示文摘Multi-model ensemble prediction is an effective approach for improving the prediction skill short-term climate prediction and evaluating related uncertainties. Based on a combination of localized operation outputs of Chinese climate models and imported forecast data of some international operational models, the National Climate Center of the China Meteorological Administration has established the China multi-model ensemble prediction system version 1.0 (CMMEv1.0) for monthly-seasonal prediction of primary climate variability modes and climate elements. We verified the real-time forecasts of CMMEv1.0 for the 2018 flood season (June-August) starting from March 2018 and evaluated the 1991-2016 hindcasts of CMMEv1.0. The results show that CMMEv1.0 has a significantly high prediction skill for global sea surface temperature (SST) anomalies, especially for the El Nino-Southern Oscillation (ENSO) in the tropical central-eastern Pacific. Additionally, its prediction skill for the North Atlantic SST triple (NAST) mode is high, but is relatively low for the Indian Ocean Dipole (IOD) mode. Moreover, CMMEv1.0 has high skills in predicting the western Pacific subtropical high (WPSH) and East Asian summer monsoon (EASM) in the June-July-August (JJA) season. The JJA air temperature in the CMMEv1.0 is predicted with a fairly high skill in most regions of China, while the JJA precipitation exhibits some skills only in northwestern and eastern China. For real-time forecasts in March-August 2018, CMMEv1.0 has accurately predicted the ENSO phase transition from cold to neutral in the tropical central-eastern Pacific and captures evolutions of the NAST and IOD indices in general. The system has also captured the main features of the summer WPSH and EASM indices in 2018, except that the predicted EASM is slightly weaker than the observed. Furthermore, CMMEv1.0 has also successfully predicted warmer air temperatures in northern China and captured the primary rainbelt over northern China, except that it predicted much more precipitation in the middle and lower reaches of the Yangtze River than observation.Hong-Li REN Yujie WU Qing BAO Jiehua MA Changzheng LIU Jianghua WAN Qiaoping LI Xiaofei WU Ying LIU Ben TIAN Joshua-Xiouhua FU Jianqi SUN 2019Journal of Meteorological Research2019,33,3:16
10Highly accurate symplectic element based on two variational principles显示文摘For the stability requirement of numerical resultants, the mathematical theory of classical mixed methods are relatively complex. However, generalized mixed methods are automatically stable, and their building process is simple and straightforward. In this paper, based on the seminal idea of the generalized mixed methods, a simple, stable, and highly accurate 8-node noncompatible symplectic element(NCSE8) was developed by the combination of the modified Hellinger-Reissner mixed variational principle and the minimum energy principle. To ensure the accuracy of in-plane stress results, a simultaneous equation approach was also suggested. Numerical experimentation shows that the accuracy of stress results of NCSE8 are nearly the same as that of displacement methods, and they are in good agreement with the exact solutions when the mesh is relatively fine. NCSE8 has advantages of the clearing concept, easy calculation by a finite element computer program, higher accuracy and wide applicability for various linear elasticity compressible and nearly incompressible material problems. It is possible that NCSE8 becomes even more advantageous for the fracture problems due to its better accuracy of stresses.Guanghui Qing Jia Tian 2018Acta Mechanica Sinica2018,34,1:15
11A Chromosome-Level Genome Assembly of Garlic (Allium sativum) Provides Insights into Genome Evolution and Allicin Biosynthesis显示文摘Garlic,an economically important vegetable,spice,and medicinal crop,produces highly enlarged bulbs and unique organosulfur compounds.Here,we report a chromosome-level genome assembly for garlic,with a total size of approximately 16.24 Gb,as well as the annotation of 57561 predicted protein-coding genes,making garlic the first Allium species with a sequenced genome.Analysis of this garlic genome assembly reveals a recent burst of transposable elements,explaining the substantial expansion of the garlic genome.We examined the evolution of certain genes associated with the biosynthesis of allicin and inulin neoseries-type fructans,and provided new insights into the biosynthesis of these two compounds.Furthermore,a large-scale transcriptome was produced to characterize the expression patterns of garlic genes in different tissues and at various growth stages of enlarged bulbs.The reference genome and large-scale transcriptome data generated in this study provide valuable new resources for research on garlic biology and breeding.Xiudong Sun Siyuan Zhu Ningyang Li Yi Cheng Jing Zhao Xuguang Qiao Li Lu Shiqi Liu Yanzhou Wang Chan Liu Benping Li Wu Guo Shuang Gao Zemao Yang Fu Li Zheng Zeng Qing Tang Yupeng Pan Mengjiao Guan Jian Zhao Xiaomi ng Lu Huanwe n Meng Zhenlin Han Chun she ng Gao Wenkai Jiang Xing Zhao Shilin Tian Jianguang Su Zhihui Cheng Touming Liu 2020Molecular Plant2020,13,9:14
12Application of next-generation sequencing technology to precision medicine in cancer: joint consensus of the Tumor Biomarker Committee of the Chinese Society of Clinical Oncology显示文摘Next-generation sequencing(NGS) technology is capable of sequencing millions or billions of DNA molecules simultaneously.Therefore, it represents a promising tool for the analysis of molecular targets for the initial diagnosis of disease, monitoring of disease progression, and identifying the mechanism of drug resistance. On behalf of the Tumor Biomarker Committee of the Chinese Society of Clinical Oncology(CSCO) and the China Actionable Genome Consortium(CAGC), the present expert group hereby proposes advisory guidelines on clinical applications of NGS technology for the analysis of cancer driver genes for precision cancer therapy. This group comprises an assembly of laboratory cancer geneticists, clinical oncologists, bioinformaticians,pathologists, and other professionals. After multiple rounds of discussions and revisions, the expert group has reached a preliminary consensus on the need of NGS in clinical diagnosis, its regulation, and compliance standards in clinical sample collection. Moreover, it has prepared NGS criteria, the sequencing standard operation procedure(SOP), data analysis, report, and NGS platform certification and validation.Xuchao Zhang Zhiyong Liang Shengyue Wang Shun Lu Yong Song Ying Cheng Jianming Ying Weiping Liu Yingyong Hou Yangqiu Li Yi Liu Jun Hou Xiufeng Liu Jianyong Shao Yanhong Tai Zheng Wang Li Fu Hui Li Xiaojun Zhou Hua Bai Mengzhao Wang You Lu Jinji Yang Wenzhao Zhong Qing Zhou Xuening Yang Jie Wang Cheng Huang Xiaoqing Liu Xiaoyan Zhou Shirong Zhang Hongxia Tian Yu Chen Ruibao Ren Ning Liao Chunyan Wu Zhongzheng Zhu Hongming Pan Yanhong Gu Liwei Wang Yunpeng Liu Suzhan Zhang Tianshu Liu Gong Chen Zhimin Shao Binghe Xu Qingyuan Zhang Ruihua Xu Lin Shen Yilong Wu 2019Cancer Biology & Medicine2019,16,1:14
13Gene Expression of Ornithine Decarboxylase in Lung Cancers and Its Clinical Significance显示文摘因为它的高发生和高死亡,肺癌症是在中国的最致命的癌症之一。鸟氨酸 decarboxylase (ODC ) ,在 polyamine 生合成的重要的酶,在癌症房间被增加。化学疗法的代理人在减少 ODC 表示瞄准了的一些在癌症房间生长上显示出禁止的效果,因此 ODC 能在基因诊断和癌症的基因治疗是有用的。在这研究,我们在肺癌症房间上检验了反感觉 ODC 的效果。A-549 房间感染 rAd-ODC/Ex3as,包含 cytomegalovirus 倡导者的 recombinant 侵入人体气管粘膜的病菌,绿荧光灯的蛋白质基因和 120 bp 反感觉 ODC。房间周期被流动 cytometry 评估。一个裸体老鼠异种皮移植模特儿在 tumorigenicity 测试被使用。反向的抄写聚合酶链反应,西方的污点和免疫组织化学被用来在肺癌症上学习 ODC 的表情。感染 rAd-ODC/Ex3as 的房间的生长实质地被禁止,房间在 G1 阶段被逮捕,这被发现。感染 rAd-ODC/Ex3as 的房间能在一个裸体老鼠异种皮移植模特儿压制肿瘤形成。在肺癌症纸巾的 ODC mRNA 和 ODC 蛋白质层次的表示在正常纸巾(P<0.05 ) 比那显著地高,它与肺癌症(P<0.05 ) 的阶段显著地相关。这研究建议 rAd-ODC/Ex3as 在人的肺癌症房间举办反肿瘤活动。ODC 基因可能在肺癌症起一个重要作用并且过去 ODC 的表示可能与肺癌症的出现和开发有关。Hui TIAN Qing HUANG Lin LI Xian-Xi LIU Yan ZHANG 2006Acta Biochimica et Biophysica Sinica2006,38,9:13
14Impact of Traffic Emissions on Local Air Quality and the Potential Toxicity of Traffic-related Particulates in Beijing, China显示文摘Objective Air-borne particulates from different sources could have different physicochemical properties and inflammatory potentials. This study aims to characterize the chemical compositions and the toxicity of ambient particulate matter (PM) associated with traffic emissions. Methods The concentrations of trace elements, organic carbon (OC), elemental carbon (EC) and polycyclic aromatic hydrocarbons (PAHs) in PM 2.5 and PM 10 were measured in samples collected at sites in Beijing, China. Their toxic effects on the pulmonary system of rats were investigated. Biochemical parameters (LDH, T-AOC, TP) and inflammatory cytokine(IL-6, IL-1, TNF-α) levels were measured in the lungs of rats exposed to traffic-related PM. Oxidative damage was observed. PM samples were taken from a near road site and an off road site in summer time in 2006. Results The concentrations of the USEPA priority pollutant PAHs in both PM 10 and PM 2.5 were higher (299.658 and 348.412) at the near road site than those (237.728 and 268.472) at the off road site. The similar trend was observed for the concentrations of trace elements in PM. Compared to coarse particles (PM 10 ), fine particles (PM 2.5 ) have a greater adsorption capacity to enrich toxic elements than inhalable particles. Decrease in antioxidant capacity and an increase in the amount of lipid peroxidation products in rat lung tissues was observed. Conclusion The findings of the present study suggest that the differing inflammatory responses of PM collected from the two road sites might have been mediated by the differing physicochemical characteristics.TIAN Lei ZHANG Wei LIN Zhi Qing ZHANG Hua Shan XI Zhu Ge CHEN Jian Hua WANG Wei 2012Biomedical and Environmental Sciences2012,25,6:13
15Coordinated Transcriptional Regulation by the UVB Photoreceptor and Multiple Transcription Factors for Plant UV-B Responses显示文摘Non-damaging ultraviolet B(UV-B)light promotes photomorphogenic development and stress acclimation through UV-B-specific signal transduction in Arabidopsis.UV-B irradiation induces monomerization and nuclear translocation of the UV-B photoreceptor UV RESISTANCE LOCUS 8(UVR8).However,it is not clear how the nuclear localization of UVR8 leads to changes in global gene expression.Here,we reveal that nuclear UVR8 governs UV-B-responsive transcriptional networks in concert with several previously known transcription factors,including ELONGATED HYPOCOTYL 5(HY5)and PHYTOCHROME INTERACTING FACTOR 4(PIF4).Based on the transcriptomic analysis,we identify MYB13 as a novel positive regulator in UV-B-induced cotyledon expansion and stress acclimation.MYB13 is UV-B inducible and is predominantly expressed in the cotyledons.Our results demonstrate that MYB13 protein functions as a transcription factor to regulate the expression of genes involved in auxin response and flavonoid biosynthesis through direct binding with their promoters.In addition,photoactivated UVR8 interacts with MYB13 in a UV-B-dependent manner and differentially modulates the affinity of MYB13 with its targets.Taken together,our results elucidate the cooperative function of the UV-B photoreceptor UVR8 with various transcription factors in the nucleus to orchestrate the expression of specific sets of downstream genes and,ultimately,mediate plant responses to UV-B light.Chongzhen Qian Zhiren Chen Qing Liu Weiwei Mao Yanling Chen Wei Tian Yan Liu Jiupan Han Xinhao Ouyang Xi Huang 2020Molecular Plant2020,13,5:13
16A bi-directional gap model for simulating the directional thermal radiance of row crops显示文摘Row crops are a kind of typical vegetation canopy between discrete canopy and continuous canopy. Kimes et al. studied the directional thermal radiation of row crops using the geometrical optical model, which simplified row structure as 'box' and neglected the gap among foliage and did not consider the emissivity effects. In this work we take account of the gaps along illumination and viewing directions and propose a bi-direction gap model on the basis of the idea of gap probability of discrete vegetation canopy introduced by 'Li-Strahler' and inter-correlation of continuous vegetation developed by Kuusk. It can be used to explain 'hot spot' effects in thermal infrared region. The gap model has been validated by field experiment on winter wheat planted in shape of rows and results show that the gap model is better than Kimes' model in describing the directionality of thermal infrared emission for row crops.CHEN Liangfu (陈良富) LIU Qinhuo (柳钦火) FAN Wenjie (范闻捷) LI Xiaowen (李小文) XIAO Qing (肖青) YAN Guangjian (闫广建) TIAN Guoliang (田国良) 2002Science China Earth Sciences2002,45,12:12
17N-methyl-D-aspartic acid receptor 1 (NMDAR1) aggravates secondary inflammatory damage induced by hemin-NLRP3 pathway after intracerebral hemorrhage显示文摘Xun Weng Yan Tan Xiang Chu Xiao-Feng Wu Rui Liu Yue Tian Lin Li Feng Guo Qing Ouyang Lei Li 2015Chinese Journal of Traumatology2015,18,5:12
18Trabecular-like Ti-6Al-4V scaffolds for orthopedic: fabrication by selective laser melting and in vitro biocompatibility显示文摘Porous metal scaffolds play an important role in the orthopedic field, due to their wide applications in prostheses implantation. Some previous studies showed that the scaffolds with trabecular bone structure reconstructed via computed tomography had satisfactory biocompatibility. However, the reverse modeling scaffolds were inflexible for customized design. Therefore, a top-down designing biomimetic bone scaffold with favorable mechanical performances and cytocompatibility is urgently demanded for orthopedic implants. An emerging additive manufacturing technique, selective laser melting, was employed to fabricate the trabecular-like porous Ti-6Al-4 V scaffolds with varying irregularities(0.05-0.5) and porosities(48.83%–74.28%) designed through a novel Voronoi-Tessellation based method. Micro-computed tomography and scanning electron microscopy were used to characterize the scaffolds’ morphology.Quasi-static compression tests were performed to evaluate the scaffolds’ mechanical properties. The MG63 cells culture in vitro experiments, including adhesion, proliferation, and differentiation, were conducted to study the cytocompatibility of scaffolds. Compressive tests of scaffolds revealed an apparent elastic modulus range of 1.93–5.24 GPa and an ultimate strength ranging within 44.9–237.5 MPa, which were influenced by irregularity and porosity, and improved by heat treatment. Furthermore, the in vitro assay suggested that the original surface of the SLM-fabricated scaffolds was favorable for osteoblasts adhesion and migration because of micro scale pores and ravines. The trabecular-like porous scaffolds with full irregularity and higher porosity exhibited enhanced cells proliferation and osteoblast differentiation at earlier time, due to their preferable combination of small and large pores with various shapes. This study suggested that selective laser melting-derived Ti-6Al-4 V scaffold with the trabecular-like porous structure designed through Voronoi-Tessellation method, favorable mechanical performance, and good cytocompatibility was a potential biomaterial for orthopedic implants.Huixin Liang Youwen Yang Deqiao Xie Lan Li Ning Mao Changjiang Wang Zongjun Tian Qing jiang Lida Shen 2019Journal of Materials Science & Technology2019,35,7:12
19Dyslipidemia and Outcome in Patients with Acute Ischemic Stroke显示文摘Objective To study the relationship between dyslipidemia and outcome in patients with acute ischemic stroke. Methods Data about 1 568 patients with acute ischemic stroke were collected from 4 hospitals in Shandong Province from January 2006 to December 2008. National Institute of Health Stroke Scale(NIHSS) >10 at discharge or death was defined as the outcome. Effect of dyslipidemia on outcome in patients with acute ischemic stroke was analyzed by multivariate logistic regression analysis and propensity score-adjusted analysis, respectively. Results The serum levels of TC, LDL-C, and HDL-C were significantly associated with the outcome in patients with acute ischemic stroke. Multivariate logistic regression analysis and propensity score-adjusted analysis showed that the ORs and 95% CIs were 3.013(1.259, 7.214)/2.655(1.298, 5.43), 3.157(1.306, 7.631)/3.405(1.621, 7.154), and 0.482(0.245, 0.946)/0.51(0.282, 0.921), respectively, for patients with acute ischemic stroke. Hosmer-Lemeshow goodness-of-fit test showed no significant difference in observed and predicted risk in patients with acute ischemic stroke(chi-square=8.235, P=0.411). Conclusion Serum levels of TC, LDL-C, and HDL-C are positively related with the outcome in patients with acute ischemic stroke.XU Tian ZHANG Jin Tao YANG Mei ZHANG Huan LIU Wen Qing KONG Yan XU Tan ZHANG Yong Hong 2014Biomedical and Environmental Sciences2014,27,2:12
20Population Pharmacokinetics of High-dose Methotrexate After Intravenous Administration in Chinese Osteosarcoma Patients from a Single Institution显示文摘Wei Zhang Qing Zhang Xiaohuang Tian Haitao Zhao Wei LU Jiancun Zhen Xiaohui Niu 2015Chinese Medical Journal2015,,1:12
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