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836篇 您的检索式:作者名="Tang Bo"
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1Mechanism for the formation of the January 2013 heavy haze pollution episode over central and eastern China显示文摘In January 2013,a long-lasting episode of severe haze occurred in central and eastern China,and it attracted attention from all sectors of society.The process and evolution of haze pollution episodes were observed by the'Forming Mechanism and Control Strategies of Haze in China'group using an intensive aerosol and trace gases campaign that simultaneously obtained data at 11 ground-based observing sites in the CARE-China network.The characteristics and formation mechanism of haze pollution episodes were discussed.Five haze pollution episodes were identified in the Beijing-Tianjin-Hebei(Jing-Jin-Ji)area;the two most severe episodes occurred during 9–15 January and 25–31 January.During these two haze pollution episodes,the maximum hourly PM2.5mass concentrations in Beijing were 680 and 530μg m 3,respectively.The process and evolution of haze pollution episodes in other major cities in the Jing-Jin-Ji area,such as Shijiazhuang and Tianjin were almost the same as those observed in Beijing.The external cause of the severe haze episodes was the unusual atmospheric circulation,the depression of strong cold air activities and the very unfavorable dispersion due to geographical and meteorological conditions.However,the internal cause was the quick secondary transformation of primary gaseous pollutants to secondary aerosols,which contributed to the'explosive growth'and'sustained growth'of PM2.5.Particularly,the abnormally high amount of nitric oxide(NOx)in the haze episodes,produced by fossil fuel combustion and vehicle emissions,played a direct or indirect role in the quick secondary transformation of coal-burning sulphur dioxide(SO2)to sulphate aerosols.Furthermore,gaseous pollutants were transformed into secondary aerosols through heterogeneous reactions on the surface of fine particles,which can change the particle’s size and chemical composition.Consequently,the proportion of secondary inorganic ions,such as sulphate and nitrate,gradually increased,which enhances particle hygroscopicity and thereby accelerating formation of the haze pollution.WANG YueSi YAO Li WANG LiLi LIU ZiRui JI DongSheng TANG GuiQian ZHANG JunKe SUN Yang HU Bo XIN JinYuan 2014Science China Earth Sciences2014,57,1:189
2A randomized controlled clinical trial on the treatment of Thymosin-a1 versus interferon-α in patients with hepatitis B显示文摘INTRODUCTIONChronic hepatitis B virus (HBV) infection is a serious problem because of its world wide distribution and possible adverse sequelae ,such as cirrhosis and hepatocellular carcinoma .The World Health Organization estimates that HBV has infected mord than 350 million people worldwide ,and up to 20% of them will become chromic carricrs and will be at significant risk for cirrhosis and HCC .The ultimate goal of the therapy for chronic hepatitis B is to prevent progression to cirrhosis and to prevent development of HCC.Jing You Lin Zhuang Bao Zhang Tang Wei Bo Yang Su Ying Ding Wu Li Rong Xue Wu Hong Li Zhang Yan Mei Zhang Shao Ming Yan Lu Zhang ~1Department of Infectious Diseases,The First Affiliated Hospital of Kunming Medical College,Kunming 650032,Yunnan Province,China ~2Departrnent of Hepatology,Kunming Third Municipal People’s Hospital,Kunming 650041,Yunnan Province,China 2001World Journal of Gastroenterology2001,7,3:48
3Enhanced secondary pollution offset reduction of primary emissions during COVID-19 lockdown in China显示文摘To control the spread of the 2019 novel coronavirus(COVID-19),China imposed nationwide restrictions on the movement of its population(lockdown)after the Chinese New Year of 2020,leading to large reductions in economic activities and associated emissions.Despite such large decreases in primary pollution,there were nonetheless several periods of heavy haze pollution in eastern China,raising questions about the well-established relationship between human activities and air quality.Here,using comprehensive measurements and modeling,we show that the haze during the COVID lockdown was driven by enhancements of secondary pollution.In particular,large decreases in NOx emissions from transportation increased ozone and nighttime NO_(3)radical formation,and these increases in atmospheric oxidizing capacity in turn facilitated the formation of secondary particulate matter.Our results,afforded by the tragic natural experiment of the COVID-19 pandemic,indicate that haze mitigation depends upon a coordinated and balanced strategy for controlling multiple pollutants.Xin Huang Aijun Ding Jian Gao Bo Zheng Derong Zhou Ximeng Qi Rong Tang Jiaping Wang Chuanhua Ren Wei Nie Xuguang Chi Zheng Xu Liangduo Chen Yuanyuan Li Fei Che Nini Pang Haikun Wang Dan Tong Wei Qin Wei Cheng Weijing Liu Qingyan Fu Baoxian Liu Fahe Chai Steven JDavis Qiang Zhang Kebin He 2021National Science Review2021,8,2:47
4Reactive Current Allocation and Control Strategies Improvement of Low Voltage Ride Though for Doubly Fed Induction Wind Turbine Generation System显示文摘为满足风电机组低电压穿越(low voltage ride through,LVRT)的测试要求及其电气模型一致性评估需要,提出考虑向电网注入无功电流的双馈风电机组LVRT的控制策略。在阐述风电机组LVRT测试要求及控制原理的基础上,推导双馈发电机(doubly fed induction generator,DFIG)定子侧及网侧变流器输出无功电流极限表达式,研究电网电压跌落深度和发电机总输出有功功率对其无功电流极限值的影响规律,进而提出DFIG在LVRT期间的无功电流分配算法和改进的有功、无功功率控制策略。最后,以某实际2 MW双馈风电机组为例,分别对风速为5和12 m/s、电网电压对称跌落至20%和50%工况下的LVRT运行性能进行仿真比较和样机测试。与传统LVRT控制方法的对比表明,所提改进控制策略能更好地满足风电机组LVRT的测试要求。样机测试结果进一步证明了改进控制策略和仿真模型的有效性。LI Hui FU Bo YANG Chao ZHAO Bin TANG Xianhu 2012中国电机工程学报2012,32,22:36
542,573 cases of hepatectomy in China: a multicenter retrospective investigation显示文摘Hepatectomy is currently routinely performed in most hospitals in China. China owns the largest population of liver diseases and the biggest number of liver resection cases. A nationwide multicenter retrospective investigation involving 112 hospitals was performed, and focused on liver resection for patients with hepatocellular carcinoma(HCC). 42,573 cases of hepatectomy were enrolled, and 18,275 valid cases of liver resection for HCC patients were selected for statistical analysis. The epidemiology of HCC, distribution of hepatectomy, postoperative complications and prognosis were finally analyzed. In the 18,275 HCC patients,81% had hepatitis B virus infection and 10% had hepatitis C virus infection. 38% of the HCC patients had normal Alphafetoprotein(AFP) level, and other 35% had an AFP level lower than 400 ng mL^(-1). In the study period, 97% of the hepatectomy for HCC were treated with open surgery, and 23.81% had vascular exclusion techniques. The operation time was(191.7±105.6) min,the blood loss was(546.0±562.8) m L, and blood transfusion was(543.0±1,035.2) m L. The median survival for HCC patients was 631 days, with 1-, 3-, and 5-year overall survival of 73.2%, 28.8% and 19.6%, respectively. Liver cirrhosis, multiple nodules,tumor thrombosis and high AFP level were risk factors that affect postoperative survival.Binhao Zhang Bixiang Zhang Zhiwei Zhang Zhiyong Huang Yifa Chen Minshan Chen Ping Bie Baogang Peng Liqun Wu Zhiming Wang Bo Li Jia Fan Lunxiu Qin Ping Chen Jingfeng Liu Zhe Tang Jun Niu Xinmin Yin Deyu Li Songqing He Bin Jiang Yilei Mao Weiping Zhou Xiaoping Chen 2018Science China(Life Sciences)2018,61,6:39
6clusterProfiler 4.0:A universal enrichment tool for interpreting omics data显示文摘Functional enrichment analysis is pivotal for interpreting highthroughput omics data in life science.It is crucial for this type of tool to use the latest annotation databases for as many organisms as possible.To meet these requirements,we present here an updated version of our popular Bioconductor package,clusterProfiler 4.0.This package has been enhanced considerably compared with its original version published 9 years ago.The new version provides a universal interface for functional enrichment analysis in thousands of organisms based on internally supported ontologies and pathways as well as annotation data provided by users or derived from online databases.It also extends the dplyr and ggplot2 packages to offer tidy interfaces for data operation and visualization.Other new features include gene set enrichment analysis and comparison of enrichment results from multiple gene lists.We anticipate that clusterProfiler 4.0 will be applied to a wide range of scenarios across diverse organisms.Tianzhi Wu Erqiang Hu Shuangbin Xu Meijun Chen Pingfan Guo Zehan Dai Tingze Feng Lang Zhou Wenli Tang Li Zhan Xiaocong Fu Shanshan Liu Xiaochen Bo Guangchuang Yu 2021The Innovation2021,2,3:40
7Neuroprotective effect of bispectral index-guided fast-track anesthesia using sevoflurane combined with dexmedetomidine for intracranial aneurysm embolization显示文摘Dexmedetomidine has sedative, anxiolytic, analgesic, anti-sympathetic, and anti-shivering effects. Dexmedetomidine might be effective in combination with sevoflurane for anesthesia, but prospective randomized controlled clinical trials with which to verify this hypothesis are lacking. In total, 120 patients who underwent embolization of an intracranial aneurysm were recruited from Anhui Provincial Hospital and Renmin Hospital of Wuhan University of China and randomly allocated to two groups. After intraoperative administration of 2% to 3% sevoflurane inhalation, one group of patients received pump-controlled intravenous injection of 1.0 μg/kg dexmedetomidine for 15 minutes followed by maintenance with 0.3 μg/kg/h until the end of surgery; the other group of patients only underwent pump-controlled infusion of saline. Bispectral index monitoring revealed that dexmedetomidine-assisted anesthesia can shorten the recovery time of spontaneous breathing, time to eye opening, and time to laryngeal mask removal. Before anesthetic induction and immediately after laryngeal mask airway removal, the glucose and lactate levels were low, the S100β and neuron-specific enolase levels were low, the perioperative blood pressure and heart rate were stable, and postoperative delirium was minimal. These findings indicate that dexmedetomidine can effectively assist sevoflurane for anesthesia during surgical embolization of intracranial aneurysms, shorten the time to consciousness and extubation, reduce the stress response and energy metabolism, stabilize hemodynamic parameters, and reduce adverse reactions, thereby reducing the damage to the central nervous system.Chao-liang Tang Juan Li Zhe-tao Zhang Bo Zhao Shu-dong Wang Hua-ming Zhang Si Shi Yang Zhang Zhong-yuan Xia 2018Neural Regeneration Research2018,13,2:32
8Variability and reduction of atmospheric pollutants in Beijing and its surrounding area during the Beijing 2008 Olympic Games显示文摘The Beijing-Tianjin-Hebei Atmospheric Environment Monitoring Network was established by the Institute of Atmospheric Physics,Chinese Academy of Sciences.The goals of the network were to monitor and provide warnings of the atmospheric quality in Beijing and its surrounding area during the Beijing 2008 Olympic Games.The results showed that the atmospheric complex pollution exhibited high concentrations of ozone and fine particles and oxidation in summer,with a ubiquitous regional source.The regional mean concentrations of SO2,PM2.5,NO2,and O3_8h max(the maximum daily 8 h mean) and Ox were 22±11,90±40,25±5,136±35 and 112±21 μg/m3 in summer,respectively.During the Olympic Games,the mean concentration of SO2,PM2.5,NO2,O3_8h max,and Ox were 12.5±4,56±28,23±4,114±29,95±17 μg/m3 in the region,respectively,and fell by 51.0%,43.7%,13%,20.2%,and 18.9%,respectively,compared to the prophase mean before the Olympic Games.The concentration of atmospheric pollutants declined significantly and achieved the 'Green Olympics' control goal of air quality.After the Olympic Games,SO2,PM2.5 and NOx increased significantly as the temporary atmospheric pollution control measures were terminated.XIN JinYuan WANG YueSi TANG GuiQian WANG LiLi SUN Yang WANG YingHong HU Bo SONG Tao JI DongSheng WANG WeiFeng LI Liang LIU GuangRen 2010Chinese Science Bulletin2010,55,18:30
9HIF-1α induces VE-cadherin expression and modulates vasculogenic mimicry in esophageal carcinoma cells显示文摘AIM:To investigate whether hypoxia inducible factor(HIF)-1αmodulates vasculogenic mimicry(VM)by upregulating VE-cadherin expression in esophageal squamous cell carcinoma(ESCC).METHODS:Esophageal squamous cancer cell lines Eca109 and TE13 were transfected with plasmids harboring small interfering RNAs targeting HIF-1αor VEcadherin.The proliferation and invasion of esophageal carcinoma cells were detected by MTT and Transwell migration assays.The formation of tubular networks of cells was analyzed by 3D culture in vitro.BALB/c nude mice were used to observe xenograft tumor formation.The relationship between the expression of HIF-1αand VE-cadherin,ephrin A2(Eph A2)and laminin5γ2(LN5γ2)was measured by Western blot and real-time polymerase chain reaction.RESULTS:Knockdown of HIF-1αinhibited cell proliferation(32.3%±6.1%for Eca109 cells and 38.6%±6.8%for TE13 cells,P<0.05).Both Eca109 and TE13cells formed typical tubular networks.The number of tubular networks markedly decreased when HIF-1αor VE-cadherin was knocked down.Expression of VEcadherin,Eph A2 and LN5γ2 was dramatically inhibited,but the expression of matrix metalloproteinase 2 had no obvious change in HIF-1α-silenced cells.Knockdown of VE-cadherin significantly decreased expression of both Eph A2 and LN5γ2(P<0.05),while HIF-1αexpression was unchanged.The time for xenograft tumor formation was 6±1.2 d for Eca109 cells and Eca109cells transfected with HIF-1αNeo control short hairpin RNA(sh RNA)vector,and 8.4±2.1 d for Eca109 cells transfected with an sh RNA against HIF-1α.Knockdown of HIF-1αinhibited vasculogenic mimicry(VM)and tumorigenicity in vivo.CONCLUSION:HIF-1αmay modulate VM in ESCC by regulating VE-cadherin expression,which affects VM formation through Eph A2 and LN5γ2.Na-Na Tang Hong Zhu Hong-Jie Zhang Wei-Feng Zhang Hai-Lin Jin Lu Wang Pin Wang Gui-Jun He Bo Hao Rui-Hua Shi 2014World Journal of Gastroenterology2014,20,47:25
10Precise orbit determination for geostationary satellites with multiple tracking techniques显示文摘A new precise orbit determination (POD) strategy based on the combination of satellite laser ranging (SLR) and C-band transfer ranging for geostationary satellites (GEO) is presented.Two approaches to calibrate ranging biases of the C-band ranging system are proposed,namely the two tracking system co-location comparison and the combined POD method,with calibration accuracies estimated to be 0.5 ns and 1 ns respectively.Using data from a C-band tracking network in China,POD experiments indicate that meter-level POD accuracy is achievable for GEO.Root-mean-square (RMS) of the post-fit C-band ranging data is about 0.205 m.The radial component errors of POD are evaluated with SLR data from a station in Beijing,with residual RMS of 0.133 m.Orbital overlapping experiments show the total orbit error is a few meters.Computations of SLR residuals also suggest that for 2-hour prediction,the predicted radial error is about 0.373 m.GUO Rui HU XiaoGong TANG Bo HUANG Yong LIU Li CHENG LiuCheng HE Feng 2010Chinese Science Bulletin2010,55,8:24
11Gut microbiome,liver immunology,and liver diseases显示文摘The gut microbiota is a complex and plastic consortium of microorganisms that are intricately connected with human physiology.The liver is a central immunological organ that is particularly enriched in innate immune cells and constantly exposed to circulating nutrients and endotoxins derived from the gut microbiota.The delicate interaction between the gut and liver prevents accidental immune activation against otherwise harmless antigens.Work on the interplay between the gut microbiota and liver has assisted in understanding the pathophysiology of various liver diseases.Of immense importance is the step from high-throughput sequencing(correlation)to mechanistic studies(causality)and therapeutic intervention.Here,we review the gut microbiota,liver immunology,and the interaction between the gut and liver.In addition,the impairment in the gut-liver axis found in various liver diseases is reviewed here,with an emphasis on alcohol-associated liver disease(ALD),nonalcoholic fatty liver disease(NAFLD),and autoimmune liver disease(AILD).On the basis of growing evidence from these preclinical studies,we propose that the gut-liver axis paves the way for targeted therapeutic modalities for liver diseases.Rui Wang Ruqi Tang Bo Li Xiong Ma Bernd Schnabl Herbert Tilg 2021Cellular & Molecular Immunology2021,18,1:23
12Effect of cypermethrin insecticide on the microbial community in cucumber phyllosphere显示文摘Cucumber (Cucumis sativus) is one of the most widely used vegetable in the world,and different pesticides have been extensively used for controlling the insects and disease pathogens of this plant.However,little is known about how the pesticides affect the microbial community in cucumber phyllosphere.This study was the first attempt to assess the impact of pyrethroid insecticide cyperemethrin on the microbial communities of cucumber phyllosphere using biochemical and genetic approaches.Phospholipid fatty acid (PLFA) assay indicated that cyperemethrin insecticide treatment led to a significant increase in both total and bacterial biomass and a decrease in fungal biomass and the ratio of Gram-positive (GP) bacteria to Gram-negative (GN) bacteria within the cucumber phyllosphere.Principal-component analyses (PCA) suggested that the number of unsaturated and cyclopropane PLFAs (16:1ω9t,18:1ω7,cy17:0,cy19:0) increased with the insecticide treatment,whereas the saturated PLFA i16:0,i17:0 decreased.The increase of GN bacteria implied that the cypermethrin insecticide might be a nutrient for the growth of these phyllosphere microbes.Terminal restriction fragment length polymorphism (T-RFLP) reinforced the PLFA results.A significant change of bacterial community structure was observed in the separate dendrogram cluster between control and treated samples with the cucumber phyllosphere following cypermethrin insecticide treatment.Moreover,the increased terminal restriction fragments (T-RFs) (58,62,89,99,119,195,239,311,340,and 473 bp) indicated that some bacteria might play a significant role in the insecticide degradation within the cucumber phylosphere,whereas the disappeared T-RFs (44,51,96,223,306,and 338 bp) implied that some other bacteria might potentially serve as microbial indicator of cyperemethrin insecticide exposure.Baoguo ZHANG Zhihui BAI 2008Journal of Environmental Sciences2008,20,11:19
13Predictive value of D-dimer for portal vein thrombosis after portal hypertension surgery in hepatitis B virus-related cirrhosis显示文摘AIM: To evaluate the predictive value of D-dimer as a predictive indicator of portal vein thrombosis (PVT) after portal hypertension surgery in hepatitis B virus-related cirrhosis. METHODS: A prospective study was carried out in 52 patients who had undergone surgery for portal hypertension in hepatitis B virus-related cirrhosis. Changes in perioperative dynamic D-dimer were observed. The sensitivity, specifi city, positive predictive values and negative predictive values of D-dimer were calculated, and ROC curves were analyzed. RESULTS: The D-dimer levels in the group developing postoperative PVT was signifi cantly higher than those in the group not developing PVT (P = 0.001), and the ROC semi-quantitative and qualitative analysis of D-dimer showed a moderate predictive value in PVT (semi- quantitative value Az = 0.794, P = 0.000; qualitative analysis: Az = 0.739, P = 0.001). CONCLUSION: Dynamic monitoring of D-dimer levels in patients with portal hypertension after surgery can help early diagnosis of PVT, as in cases where the D-dimer levels steadily increase and exceed 16 μg/mL, the possibility of PVT is very high.Mei-Hai Deng Bo Liu He-Ping Fang Wei-Dong Pan Zhao-Feng Tang Peng Deng Yue-Si Zhong Rui-Yun Xu 2007World Journal of Gastroenterology2007,13,48:19
14YAP promotes osteogenesis and suppresses adipogenic differentiation by regulatingβ-catenin signaling显示文摘YAP(yes-associated protein) is a transcriptional factor that is negatively regulated by Hippo pathway, a conserved pathway for the development and size control of multiple organs. The exact function of YAP in bone homeostasis remains controversial. Here we provide evidence for YAP's function in promoting osteogenesis, suppressing adipogenesis, and thus maintaining bone homeostasis.YAP is selectively expressed in osteoblast(OB)-lineage cells. Conditionally knocking out Yap in the OB lineage in mice reduces cell proliferation and OB differentiation and increases adipocyte formation, resulting in a trabecular bone loss. Mechanistically, YAP interacts with β-catenin and is necessary for maintenance of nuclear β-catenin level and Wnt/β-catenin signaling. Expression of β-catenin in YAP-deficient BMSCs(bone marrow stromal cells) diminishes the osteogenesis deficit. These results thus identify YAP-β-catenin as an important pathway for osteogenesis during adult bone remodeling and uncover a mechanism underlying YAP regulation of bone homeostasis.Jin-Xiu Pan Lei Xiong Kai Zhao Peng Zeng Bo Wang Fu-Lei Tang Dong Sun Hao-han Guo Xiao Yang Shun Cui Wen-Fang Xia Lin Mei Wen-Cheng Xiong 2018Bone Research2018,6,2:19
15Expansion and differentiation of human hepatocyte-derived liver progenitor-like cells and their use for the study of hepatotropic pathogens显示文摘The study of pathophysiological mecha nisms in huma n liver disease has bee n constrained by the in ability to expa nd primary hepatocytes in vitro while maintaining proliferative capacity and metabolic function. We and others have previously shown that mouse mature hepatocytes can be con verted to liver progenitor-like cells in vitro with defined chemical factors. Here we describe a protocol achieving efficient conversion of human primary hepatocytes into liver progenitor-like cells (HepLPCs) through delivery of developmentally relevant cues, including NAD +-dependent deacetylase SIRT1 signaling. These HepLPCs could be expanded sign ifica ntly duri ng in vitro passage. The expa nded cells can readily be con verted back into metabolically functional hepatocytes in vitro and upon tran splantati on in vivo. Under three-dime nsional culture conditions, differentiated cells gen erated from HepLPCs regai ned the ability to support infect io n or reactivatio n of hepatitis B virus (HBV). Our work dem on strates the utility of the con versi on betwee n hepatocyte and liver proge nitor-like cells for studying HBV biology and an tiviral therapies. These fin dings will facilitate the study of liver diseases and regenerative medicine.Gong-Bo Fu Wei-Jian Huang Min Zeng Xu Zhou Hong-Ping Wu Chang-Cheng Liu Han Wu Jun Weng Hong-Dan Zhang Yong-Chao Cai Charles Ashton Min Ding Dan Tang Bao-Hua Zhang Yi Gao Wei-Feng Yu Bo Zhai Zhi-Ying He Hong-Yang Wang He-Xin Yan 2019Cell Research2019,29,1:18
16粉防己碱抑制前列腺癌细胞迁移和侵袭并通过诱导凋亡抑制细胞增殖显示文摘粉防己碱作为一种传统的中药,在多种肿瘤细胞中呈现显著的抗肿瘤活性。然而,粉防己碱在前列腺癌细胞中的作用却知之甚少,且其作用于前列腺癌的具体机制也尚未有人阐述。为了探究粉防己碱对前列腺癌DU145和PC-3两种细胞系生长抑制、凋亡诱导、迁移和侵袭抑制等方面的作用,通过MTT实验和克隆形成实验检测其对前列腺癌细胞的生长抑制能力,采用流式细胞仪检测其对前列腺癌细胞的凋亡诱导作用。后通过Western blotting实验检测粉防己碱处理后两种前列腺癌细胞系中PARP、Caspase-3、Akt、p-Akt、Bcl-2、Bax等蛋白的表达情况。而细胞划痕实验和transwell侵袭实验则分别用来检测粉防己碱对前列腺癌细胞的迁移和侵袭能力。结果显示,粉防己碱可剂量依赖性和时间依赖性地抑制前列腺癌细胞系DU145和PC-3的生长;且经粉防己碱处理后,两种前列腺癌细胞系的细胞克隆数明显受到抑制。且粉防己碱可抑制两种前列腺癌细胞系的侵袭,并显著抑制其迁移能力。由此可知,粉防己碱对前列腺癌细胞的增殖、迁移和侵袭有显著抑制作用。另外,粉防己碱可剂量依赖性地诱导前列腺癌细胞的凋亡,且此过程是通过caspase级联反应的激活和PI3K-Akt信号通路的抑制而得以实现的。上述结果提示粉防己碱在临床中可作为前列腺癌治疗的一种潜在治疗药物。Wei Liu Bo KOU Zhen-Kun Ma Xiao-Shuang Tang Chuan Lv Min Ye Jia-Qi Chen Lei Li Xin-Yang Wang Da-Lin He 2015Asian Journal of Andrology2015,17,5:18
17Three-dimensional human facial morphologies as robust aging markers显示文摘老化与许多复杂疾病被联系。变老的过程的可靠预言为估计联系老化的疾病的风险是重要的。然而尽管有强烈研究,到目前为止没有可靠老化标记。这里,我们由检验人的 3D 美容成像特征是否能被用作可靠老化标记处理了这个问题。我们收集了 >300 幅 3D 人美容图象和越过 17 ~ 77 年的年龄散布得好的血侧面。由分析词法侧面,我们产生了变老的人的面部 phenome 的第一张全面地图。我们鉴别量的面部特征例如眼睛斜坡,高度与年龄联系了。我们构造了一个柔韧的年龄预言者并且发现平均,一样的按年代先后的年龄的人由 ± 不同;在美容的 6 年变老,与在年龄 40 以后增加的偏差。用这个预言者,我们识别了被健康指示物的层次显著地支持的慢、快的蒸化机。尽管有在在血的面部词法特征和健康指示物之间的一种靠近的关系,面部特征比血侧面是更可靠的老化 biomarkers 并且能更好比按年代先后的年龄反映一般健康地位。Weiyang Chen Wei Qian Gang Wu Weizhong Chen Bo Xian Xingwei Chen Yaqiang Cao Christopher D Green Fanghong Zhao Kun Tang Jing-Dong J Han 2015Cell Research2015,25,5:17
18Reversing drug resistance of soft tumor-repopulating cells by tumor cell-derived chemotherapeutic microparticles显示文摘颠倒使人重新住入肿瘤的房间(TRC ) 的药抵抗或起源的发展中的新奇途径像房间的癌症房间是迫切临床的需要改进癌症病人的结果。这里,我们显示出用肿瘤颠倒 TRC 的药抵抗的一条创新途径包含反肿瘤药的导出房间的 microparticles (T-MPs ) 。由比区分的癌症房间更可变形的优点, TRC 优先地收起 T-MPs 在进入房间以后释放反肿瘤药,它接着导致 TRC 的死亡。内在的机制包括防碍药流出并且支持这些药的原子入口。我们的调查结果在用有希望的临床的应用程序颠倒 TRC 的药抵抗在 T-MPs 的举起和一条新奇途径的有效性表明肿瘤房间柔软的重要性。Jingwei Ma Yi Zhang Ke Tang Huafeng Zhang Xiaonan Yin Yong Li Pingwei Xu Yanling Sun Ruihua Ma Tiantian Ji Junwei Chen Shuang Zhang Tianzhen Zhang Shunqun Luo Yang Jin Xiuli Luo Chengyin Li Hongwei Gong Zhixiong Long Jinzhi Lu Zhuowei Hu Xuetao Cao Ning Wang Xiangliang Yang Bo Huang 2016Cell Research2016,26,6:17
19Advanced Space-based Solar Observatory(ASO-S):an overview显示文摘The Advanced Space-based Solar Observatory(ASO-S)is a mission proposed for the 25 th solar maximum by the Chinese solar community.The scientific objectives are to study the relationships between the solar magnetic field,solar flares and coronal mass ejections(CMEs).Three payloads are deployed:the Full-disk vector Magneto Graph(FMG),the Lyman-αSolar Telescope(LST)and the Hard X-ray Imager(HXI).ASO-S will perform the first simultaneous observations of the photospheric vector magnetic field,non-thermal imaging of solar flares,and the initiation and early propagation of CMEs on a single platform.ASO-S is scheduled to be launched into a 720 km Sun-synchronous orbit in 2022.This paper presents an overview of the mission till the end of Phase-B and the beginning of Phase-C.Wei-Qun Gan Cheng Zhu Yuan-Yong Deng Hui Li Yang Su Hai-Ying Zhang Bo Chen Zhe Zhang Jian Wu Lei Deng Yu Huang Jian-Feng Yang Ji-Jun Cui Jin Chang Chi Wang Ji Wu Zeng-Shan Yin Wen Chen Cheng Fang Yi-Hua Yan Jun Lin Wei-Ming Xiong Bin Chen Hai-Chao Bao Cai-Xia Cao Yan-Ping Bai Tao Wang Bing-Long Chen Xin-Yu Li Ye Zhang Li Feng Jiang-Tao Su Ying Li Wei Chen You-Ping Li Ying-Na Su Hai-Yan Wu Mei Gu Lei Huang Xue-Jun Tang 2019Research in Astronomy and Astrophysics2019,19,11:17
20Magnetic resonance imaging for local complications of acute pancreatitis: A pictorial review显示文摘Acute pancreatitis is a common disease characterized by sudden upper abdominal pain and vomiting. Alcoholism and choledocholithiasis are the most common factors for this disease. The choice of treatment for acute pancreatitis might be affected by local complications, such as local hemorrhage in or around the pancreas, and peripancreatic infection or pseudoaneurysm. Diagnostic imaging modalities for acute pancreatitis have a significant role in confirming the diagnosis of the disease, helping detect the extent of pancreatic necrosis, and for diagnosing local complications. Magnetic resonance imaging (MRI) might be indicated in acute pancreatitis for detecting and characterizing local complications of acute pancreatitis that involve necrotic, hemorrhagic, infectious, vascular, and pseudocyst disorders. The general MRI sequences for pancreatitis require the combined use of T1-weighted, T2-weighted sequences, and magnetic resonance chol-angiopancreatography. For imaging of pancreatic necrosis, the combination of T1-weighted and T2-weighted findings with dynamic contrast-enhanced imaging gives a comprehensive evaluation of the extent of necrosis and full range of inflammatory extension. For imaging of infectious complications, dynamic contrast-enhanced examinations might help differentiate pancreatic cellulitis or abscesses, from pancreatic fluid collection or simple pseudocysts. For vascular abnormalities, the combination of cross-sectional pancreatic parenchyma imaging with MRA represents a single diagnostic modality for the full evaluation of peripancreatic artery and vein involvement, such as arterial pseudoaneurysms and venous thromboses. The purpose of this pictorial review is to examine the MRI appearances of various local complications of acute pancreatitis and to discuss the practical setup of MRI in local complications of acute pancreatitis.Xiao, Bo Zhang, Xiao-Ming Tang, Wei Zeng, Nan-Lin Zhai, Zhao-Hua 2010World Journal of Gastroenterology2010,16,22:17
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