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462篇 您的检索式:作者名="Ran Zhou"
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1Analysis of status and countermeasures of cancer incidence and mortality in China显示文摘Cancer is the leading cause of human deaths in the world and produces serious economic burdens. On September 12, 2018, the academic journal A Cancer Journal for Clinicians published an article about the latest statistics of cancers worldwide, which provided a status report on the global burden of 36 cancers in 185 countries worldwide. Cancer has also become a serious public health problem in China and caused more and more attention of the government and people in recent years. This review analyzes the incidence, mortality and prevalent trend of cancers in China, discusses the reasons behind this status, and reviews the potential countermeasures for cancer prevention and control in China.Chunchun Wu Mengna Li Hanbing Meng Yukun Liu Weihong Niu Yao Zhou Ran Zhao Yumei Duan Zhaoyang Zeng Xiaoling Li Guiyuan Li Wei Xiong Ming Zhou 2019Science China(Life Sciences)2019,62,5:175
2A community-derived classification for extant lycophytes and ferns显示文摘发展史长通知了蕨类植物分类。当我们推断进化的树的能力改善了,针对认出生来的组的分类变得逐渐地预兆、稳定。这里,我们为 lycophytes 和蕨纲植物提供一个现代、全面分类,在下面,利用一条基于社区的途径类水平。我们 monophyly 用作主要标准让 taxa,而且目的识别保存两个广泛地被接受的存在 taxa 和界限并且与我们蕨类植物发展史的理解一致。总共,这个分类对待一在 337 个类, 51 个家庭, 14 目,和二个班估计了 11  916 种类。这个分类没在 lycophyte 和蕨纲植物上作为最后的词被打算分类,而是当前的假设的概括陈述,源于最好的可得到的数据并且在问题由熟悉植物的那些大多数塑造了。我们希望它将在蕨类植物上为最近的文学的那些想要的参考用作一个资源发展史和分类,为指导未来调查的一个框架,和推进讲话的刺激。Eric Schuettpelz Harald Schneider Alan R. Smith Peter Hovenkamp Jefferson Prado Germinal Rouhan Alexandre Salino Michael Sundue Thafs Elias Almeida Barbara Parris Emily B. Sessa Ashley R. Field Andre Luis de Gasper Carl J. Rothfels Michael D. Windham Marcus Lehnert Benjamin Dauphin Atsushi Ebihara Samuli Lehtonen Pedro Bond Schwartsburd Jordan Metzgar Li-Bing Zhang Li-Yaung Kuo Patrick J. Brownsey Masahiro Kato Marcelo Daniel Arana Francine C. Assis Michael S. Barker David S. Barrington Ho-Ming Chang Yi-Han Chang Yi-Shan Chao Cheng-Wei Chen De-Kui Chen Wen-Liang Chiou Vinicius Antonio de Oliveira Dittrich Yi-Fan Duan Jean-Yves Dubuisson Donald R. Farrar Susan Fawcett Jose Maria Gabriel y Galan Luiz Armando de Araujo Goes-Neto Jason R. Grant Amanda L. Grusz Christopher Haufler Warren Hauk Hai He Sabine Hennequin Regina Yoshie Hirai Layne Huiet Michael Kessler Petra Korall Paulo H. Labiak Anders Larsson Blanca Leen Chun-Xiang Li Fay-Wei Li Melanie Link-Perez Hong-Mei Liu Ngan Thi Lu Esteban I. Meza-Torres Xin-Yuan Miao Robbin Moran Claudine Massi Mynssens Nathalie Nagalingum Benjamin Ollgaard Alison M. Paul Jovani B. de S. Pereira Leon R. Perrie Monica Ponce Tom A. Ranker Christian Schulz Wataru Shinohara Alexander Shmakov Erin M. Sigel Filipe Soares de Souza Lana da Silva Sylvestre Weston Testo Luz Amparo Triana-Moreno Chie Tsutsumi Hanna Tuomisto IvAn A. Valdespino Alejandra Vasco Raquel Stauffer Viveros Alan Weakley Ran Wei Stina Weststrand Paul G. Wolf George Yatskievych Xiao-Gang Xu Yue-Hong Yan Liang Zhang Xian-Chun Zhang Xin-Mao Zhou 2016Journal of Systematics and Evolution2016,54,6:44
3A life support-based comprehensive treatment regimen dramatically lowers the in-hospital mortality of patients with fulminant myocarditis: a multiple center study显示文摘Fulminant myocarditis(FM) has unacceptable high mortality. This study aimed to evaluate the therapeutic efficacy of a life support-based comprehensive treatment regimen(LSBCTR), a completely novel treatment regimen, for FM. A total of 169 FM patients recruited from January 2008 to December 2018 were divided into two groups: patients receiving LSBCTR(81 cases),which includes(i) mechanical life support(positive pressure respiration, intra-aortic balloon pump with or without extracorporeal membrane oxygenation),(ii) immunomodulation therapy using sufficient doses of glucocorticoids and immunoglobulins, and(iii) application of neuraminidase inhibitors, and those receiving conventional treatment(88 cases). The endpoints were in-hospital death and heart-transplantation. Of all the population, 44 patients(26.0%) died in hospitals. Inhospital mortality was 3.7%(3/81) for LSBCTR group and 46.6%(41/88) for traditional treatment(P<0.001). Early application of LSBCTR, mechanical life support, neuraminidase inhibitors, and immunomodulation therapy significantly contributed to reduction in in-hospital mortality. This study describes a novel treatment regimen for FM patients that dramatically reduces inhospital mortality. Its generalization and clinical application will efficiently save lives although further optimization is needed.This study offers an insight that virus infection induced inflammatory waterfall results in cardiac injury and cardiogenic shock and is the therapeutic target.Sheng Li Shengyong Xu Chenze Li Xiao Ran Guanglin Cui Mengying He Kun Miao Chunxia Zhao Jiangtao Yan Rutai Hui Ning Zhou Yan Wang Jiangang Jiang Jing Zhang Daowen Wang 2019Science China(Life Sciences)2019,62,3:43
4Ganoderic acid hinders renal fibrosis via suppressing the TGF- β/Smad and MAPK signaling pathways显示文摘Renal fibrosis is considered as the pathway of almost all kinds of chronic kidney diseases(CKD)to the end stage of renal diseases(ESRD).Ganoderic acid(GA)is a group of lanostane triterpenes isolated from Ganoderma lucidum,which has shown a variety of pharmacological activities.In this study we investigated whether GA exerted antirenal fibrosis effect in a unilateral ureteral obstruction(UUO)mouse model.After UUO surgery,the mice were treated with GA(3.125,12.5,and 50 mg·kg^−1·d^−1,ip)for 7 or 14 days.Then the mice were sacrificed for collecting blood and kidneys.We showed that GA treatment dose-dependently attenuated UUO-induced tubular injury and renal fibrosis;GA(50 mg·kg^−1·d^−1)significantly ameliorated renal disfunction during fibrosis progression.We further revealed that GA treatment inhibited the extracellular matrix(ECM)deposition in the kidney by suppressing the expression of fibronectin,mainly through hindering the over activation of TGF-β/Smad signaling.On the other hand,GA treatment significantly decreased the expression of mesenchymal cell markers alpha-smooth muscle actin(α-SMA)and vimentin,and upregulated E-cadherin expression in the kidney,suggesting the suppression of tubular epithelial-mesenchymal transition(EMT)partially via inhibiting both TGF-β/Smad and MAPK(ERK,JNK,p38)signaling pathways.The inhibitory effects of GA on TGF-β/Smad and MAPK signaling pathways were confirmed in TGF-β1-stimulated HK-2 cell model.GA-A,a GA monomer,was identified as a potent inhibitor on renal fibrosis in vitro.These data demonstrate that GA or GA-A might be developed as a potential therapeutic agent in the treatment of renal fibrosis.Xiao-qiang Geng Ang Ma Jin-zhao He Liang Wang Ying-li Jia Guang-ying Shao Min Li Hong Zhou Shu-qian Lin Jian-hua Ran Bao-xue Yang 2020Acta Pharmacologica Sinica2020,41,5:43
5Control of Grain Size and Weight by the OsMKKK10-OsM KK4-OsMAPK6 Signaling Pathway in Rice显示文摘谷物尺寸是在庄稼决定谷物产量的关键农学的特点之一。然而,在庄稼位于谷物尺寸控制下面的机制留下逃犯。这里,我们证明断然表明小径的 OsMKKK10-OsMKK4-OsMAPK6 在米饭调整谷物尺寸和重量。在米饭,当组成地活跃的 OsMKKK10 (CA-OsMKKK10 ) 的 overexpression 导致大、重的谷物,长圆锥花序,和高植物时, OsMKKK10 功能的损失导致小、轻的谷物,短圆锥花序,和半矮子植物。OsMKKK10 交往与并且 phosphorylates OsMKK4。我们识别了 OsMKK4 gain-of-function 异种(large11-1D )? 那生产大、重的谷物。OsMKK4 large11-1D 等位基因编码的 A227T 比 OsMKK4 举办更强壮的 kinase 活动。植物 overexpressing OsMKK4 (OsMKK4-DD ) 的一种组成地活跃的形式也生产大谷物。进一步生物化学、基因的分析表明 OsMKKK10, OsMKK4,和 OsMAPK6 在一条普通小径工作控制谷物尺寸。一起拿,我们的学习在米饭为谷物尺寸和重量的 OsMKKK10-OsMKK4-OsMAPK6 调停串联的控制建立一个重要基因、分子的框架。Ran Xu Penggen Duan Haiyue Yu Zhengkui Zhou Baolan Zhang Ruci Wang Jing Li Guozheng Zhang Shangshang Zhuang Jia Lyu Na Li Tuanyao Chai Zhixi Tian Shanguo Yao Yunhai Li 2018Molecular Plant2018,11,6:33
6Multicenter case-control study of the risk factors for ulcerative colitis in China显示文摘AIM:To evaluate potential risk factors in the development of ulcerative colitis(UC) in China.METHODS:A total of 1308 patients with UC and 1308 age-matched and sex-matched controls were prospectively studied in China.The UC cases were collected from 17 hospitals in China from April 2007 to April 2010.Uniform questionnaires were designed to investigate risk factors including smoking,appendectomy,stress,socio-economic conditions,nonsteroidal antiinflammatory drugs(NSAIDs),oral contraceptives,diet,breastfeeding,infections and family sanitary conditions.Group comparisons by each factor were done using simple logistic regression analysis.Conditional logistic regression was used for multivariate analysis.RESULTS:By univariate analysis,the variables predictive of UC included feeling stress,light and heavy alcoholic drinking,spicy food,sugar consumption and infectious diarrhea,while heavy tea intake and tap water consumption were protective against UC.On multivariate analysis,the protective factor for UC was tap water consumption [odds ratios(OR) = 0.424,95%CI:0.302-0.594,P < 0.001];while the potential risk factors for UC were heavy sugar consumption(OR = 1.632,95%CI:1.156-2.305,P < 0.001),spicy food(light intake:OR = 3.329,95%CI:2.282-4.857,P < 0.001;heavy intake:OR = 3.979,95%CI:2.700-5.863,P < 0.001),and often feeling stress(OR = 1.981,95%CI:1.447-2.711,P < 0.001).Other factors,such as smoking habit,appendectomy,breastfeeding,a history of measles,rural or urban residence,education,oral contraceptives,and NSAID use have not been found to have a significant association with the development of UC in the present study.CONCLUSION:Our study showed tap water consumption was a protective factor for UC,while spicy food,heavy sugar consumption and often feeling stress were risk factors for UC in this Chinese population.Yu-Fang Wang Qin Ou-yang Bing Xia Li-Na Liu Fang Gu Kai-Fang Zhou Qiao Mei Rui-Hua Shi Zhi-Hua Ran Xiao-Di Wang Pin-Jin Hu Kai-Chun Wu Xin-Guang Liu Ying-Lei Miao Ying Han Xiao-Ping Wu Guo-Bing He Jie Zhong Guan-Jian Liu 2013World Journal of Gastroenterology2013,19,11:24
7A journey to understand wheat Fusarium head blight resistance in the Chinese wheat landrace Wangshuibai显示文摘Fusarium head blight(FHB) or scab caused by Fusarium graminearum is a major threat to wheat production in China as well as in the world. To combat this disease, multiple efforts have been carried out internationally. In this article, we review our long-time effort in identifying the resistance genes and dissecting the resistance mechanisms by both forward and reverse genetics approaches in the last two decades. We present recent progress in resistance QTL identification, candidate functional gene discovery, marker-assisted improvement of FHB resistant varieties, and findings in investigating association of signal molecules, such as Ca^(++),SA, JA, and ET, with FHB response, with the assistance from rapidly growing genomics platforms. The information will be helpful for designing novel and efficient approaches to curb FHB.Haiyan Jia Jiyang Zhou Shulin Xue Guoqiang Li Haisheng Yan Congfu Ran Yiduo Zhang Jinxing Shi Li Jia Xin Wang Jing Luo Zhengqiang Ma 2018The Crop Journal2018,6,1:24
8Effects of pH and particle size on kinetics of nitrobenzene reduction by zero-valent iron显示文摘Nitrobenzene has been considered as a significant groundwater contaminant due to its wide usage in explosives, insecticides, herbicides, pharmaceuticals and dyes. Nitrobenzene is of environmental concern because of its toxicity. In the presence of zero-valent iron (ZVI), reduction of the nitro group is the dominant transformation process for nitrobenzene. A series of experiments were carried out to investigate the kinetics of nitrobenzene reduction by ZVI and the effects of pH and ZVI particle size on nitrobenzene removal in groundwater. The results indicated that nitrobenzene could be reduced to aniline by ZVI; the reduction of nitrobenzene by ZVI followed a pseudo first-order kinetics; the observed nitrobenzene reduction rate constant (k obs ) was 0.0006 min 1 and the half-life of nitrobenzene (t 1/2 ) was 115.5 min; the mass balance achieved 87.5% for nitrobenzene reduction by the 1 mm ZVI particle and the final removal efficiency was 80.98%. In addition, the pH and ZVI particle size were found to exhibit significant influences on the nitrobenzene reduction. The observed nitrobenzene reduction rate constant linearly decreased with increase pH and the data fitted on polynomial regression equation for the observed nitrobenzene reduction rate constant and ZVI particle size. Therefore, use of ZVI based permeable reactive barrier technology to remedy nitrobenzene contaminated groundwater was feasible.Jun Dong Yongsheng Zhao Ran Zhao Rui Zhou 2010Journal of Environmental Sciences2010,22,11:23
9TD-AltBOC:A new COMPASS B2 modulation显示文摘AltBOC(15,10) is the baseline of COMPASS B2 signal modulation.It is a BOC-like signal having different PN codes in the lower and the upper main split lobes,which allow one signal service per lobe.The two lobes can be received and processed separately like two BPSK(10) signals,or coherently processed to achieve better performance.Interoperability among COMPASS B2,Galileo E5 and GPS L5 is also achievable using AltBOC modulation.However,Galileo's 4-code AltBOC has drawbacks such as low efficiency and great receiver complexity.This paper presents a new modulation type named TD-AltBOC (Time Division AltBOC).The signal generation scheme and receiving method are presented,and are compared with AltBOC in the areas of power spectrum,ranging accuracy,anti-multipath performance,anti-interference performance,processing flexibility and complexity.Analysis results show TD-AltBOC has similar spectrum characteristics,interoperability,flexibility and anti-interference performance with AltBOC.When the frontend bandwidth is more than 50 MHz,TD-AltBOC can achieve better ranging accuracy and anti-multipath performance.It also has such advantages as high efficiency and low receiver complexity.TD-AltBOC could be a good solution to COMPASS B2 navigation signal.TANG ZuPing ZHOU HongWei WEI JiaoLong YAN Tao LIU YuQi RAN YiHang ZHOU YanLing 2011Science China(Physics,Mechanics & Astronomy)2011,54,6:20
10The China Alzheimer Report 2022显示文摘China’s population has rapidly aged over the recent decades of social and economic development as neurodegenerative disorders have proliferated,especially Alzheimer’s disease(AD)and related dementias(ADRD).AD’s incidence rate,morbidity,and mortality have steadily increased to make it presently the fifth leading cause of death among urban and rural residents in China and magnify the resulting financial burdens on individuals,families and society.The‘Healthy China Action’plan of 2019-2030 promotes the transition from disease treatment to health maintenance for this expanding population with ADRD.This report describes related epidemiological trends,evaluates the economic burden of the disease,outlines current clinical diagnosis and treatment status and delineates existing available public health resources.More specifically,it examines the public health impact of ADRD,including prevalence,mortality,costs,usage of care,and the overall effect on caregivers and society.In addition,this special report presents technical guidance and supports for the prevention and treatment of AD,provides expertise to guide relevant governmental healthcare policy development and suggests an information platform for international exchange and cooperation.Rujing Ren Jinlei Qi Shaohui Lin Xinya Liu Peng Yin Zhihui Wang Ran Tang Jintao Wang Qiang Huang Jianping Li Xinyi Xie Yongbo Hu Shishuang Cui Yuan Zhu Xiaoping Yu Pengfei Wang Yikang Zhu Yiran Wang Yanyan Huang Yisong Hu Ying Wang Chunbo Li Maigeng Zhou Gang Wang 2022General Psychiatry2022,35,1:20
11Modeling of coupled deformation,water flow and gas transport in soil slopes subjected to rain infiltration显示文摘Rain infiltration into a soil slope leads to propagation of the wetting front, transport of air in pores and deformation of the soils, in which coupled processes among the solid, liquid and gas phases are typically involved. Most previous studies on the unsaturated flow and its influence on slope stability were based on the singlephase water flow model (i.e., the Richards Equation) or the waterair two-phase flow model. The effects of gas transport and soil deformation on the movement of groundwater and the evolution of slope stability were less examined with a coupled solid-water-air model. In this paper, a numerical model was established based on the principles of the continuum mechanics and the averaging approach of the mixture theory and implemented in an FEM code for analysis of the coupled deformation, water flow and gas transport in porous media. The proposed model and the computer code were validated by the Liakopoulos drainage test over a sand column, and the significant effect of the lateral air boundary condition on the draining process of water was discussed. On this basis, the coupled processes of groundwater flow, gas transport and soil deformation in a homogeneous soil slope under a long heavy rainfall were simulated with the proposed three-phase model, and the numerical results revealed the remarkable delaying effects of gas transport and soil deformation on the propagation of the wetting front and the evolution of the slope stability. The results may provide a helpful reference for hazard assessment and control of rainfall-induced landslides.HU Ran CHEN YiFeng ZHOU ChuangBing 2011Science China(Technological Sciences)2011,54,10:19
12Efficacy and safety of metformin and sitagliptin based triple antihyperglycemic therapy(STRATEGY):a multicenter,randomized,controlled,non-inferiority clinical trial显示文摘Despite the current guideline's recommendation of a timely stepwise intensification therapy,the 'clinical inertia',termed as the delayed treatment intensification,commonly exists in the real world,which may be partly due to the relatively little substantial evidence and no clear consensus regarding the efficacy and safety of triple oral agents in patients inadequately controlled with dual therapy.In this clinical trial performed in 237 centers in China,5,535 type 2 diabetic patients inadequately controlled by previous therapies were treated with a stable metformin/sitagliptin dual therapy for 20 weeks.The patients who did not reach the glycated hemoglobin A1c(HbA1c) goal were then further randomized into glimepiride,gliclazide,repaglinide,or acarbose group for an additional 24-week triple therapy.A mean HbAlc reduction of 0.85%was observed when sitagliptin was added to the patients inadequately controlled with metformin in 16 weeks.Further HbAlc reductions in the 24-week triple therapy stage were 0.65%in glimepiride group,0.70%in gliclazide group,0.61%in repaglinide group,and 0.45%in acarbose group.The non-inferiority criterion for primary hypotheses was met for gliclazide and repaglinide,but not for acarbose,compared with glimepiride,when added to metformin/sitagliptin dual therapy.The incidences of adverse events(AEs) were 29.2%in the dual therapy stage and30.3%in the triple therapy stage.Metformin/sitagliptin as baseline therapy,with the addition of a third oral antihyperglycemic agent,including glimepiride,gliclazide,repaglinide,or acarbose,was effective,safe and well-tolerated for achieving an HbAlc<7.0%goal in type 2 diabetic patients inadequately controlled with previous therapies.The timely augmentation of up to three oral antihyperglycemic agents is valid and of important clinical benefit to prevent patients from exposure to unnecessarily prolonged hyperglycemia.Wen Xu Yiming Mu Jiajun Zhao Dalong Zhu Qiuhe Ji Zhiguang Zhou Bin Yao Anhua Mao Samuel S.Engel Bin Zhao Yan Bi Longyi Zeng Xingwu Ran Juming Lu Linong Ji Wenying Yang Weiping Jia Jianping Weng 2017Science China(Life Sciences)2017,60,3:19
13Asymptomatic patients of chronic obstructive pulmonary disease in China显示文摘背景长期的妨碍的肺的疾病(COPD ) 让可变自然历史和并非所有个人跟随一样的功课。这研究试图在 China.Methods 从基于人口的调查识别无征状的 COPD 病人的流行和特征多级式的簇采样策略从七不同省 / 城市在一张人口被使用。所有居民(超过 40 岁) 与一张标准化问询表被会见, spirometry.Post-bronchodilator 在 1 秒(FEV1 ) 强迫了吐气的体积 /forced 不到 70% 的重要能力(FVC ) 被定义为 COPD 的诊断标准。屏蔽的所有 COPD 病人根据长期的呼吸症状的存在或缺席被划分成征兆的组和无征状的组。Socio 人口统计,个人和暴露变量被收集,在从 25 627 采样与 COPD 被诊断的 1668 个病人之中的 analyzed.Results 使遭到,(35.3%) 589 是无征状的。年龄,性别,身体团索引(BMI ) ,农村、城市的分布,吸烟习惯和教育层次在二个组是类似的。64.7% 无征状的病人的一个总数没有 comorbidities。心血管的疾病和肺癌症比无征状的 group.Asymptomatic COPD 组多半是更少在厨房,呼吸疾病的家庭历史和周期性的童年咳嗽里与差的通风介绍的在征兆的 COPD 病人之中是更普通的。无征状的 COPD 病人有的显著地更高的 FEV1 (73.1% 对 61.0%) , FVC (91.9% 对 82.0%) ,和 FEV1/FVC (62.9%vs.58.7%) 的更高的比率(所有 P < 0.001 ) 比征兆的组。更无征状的病人是 underdiagnosed (91.9%vs.54.3% , P < 0.001 ) 比征兆的 patients.Conclusions,这大基于人口的调查在中国证实了无征状的 COPD 病人的高流行。屏蔽测试的呼吸量测定法的更多的使用可能对 COPD 的早察觉重要。LU Ming YAO Wan-zhen ZHONG Nan-shan ZHOU Yu-min WANG Chen CHEN Ping KANG Jian HUANG Shao-guang CHEN Bao-yuan WANG Chang-zheng NI Dian-tao WANG Xiao-ping WANG Da-li LIU Sheng-ming Lv Jia-chun SHEN Ning DING Yan-ling RAN Pi-xin 2010Chinese Medical Journal2010,,12:17
14Surgical treatment of hepatocellular carcinoma with inferior vena cava tumor thrombus: a new classification for surgical guidance显示文摘BACKGROUND: Hepatic resection is the main treatment modality for hepatic tumors. Advances in diagnostic technique, preoperative preparation, surgical technique, and postoperative management increased the success rate. The present study aimed to evaluate hepatectomy and resection of inferior vena cava tumor thrombus (IVCTT) in patients with hepatocellular carcinoma, and the relationship between IVCTT classification and selection of surgical technique. METHODS: We retrospectively reviewed 13 patients with hepatocellular carcinoma who had undergone hepatectomy with IVCTT resection between May 1997 and August 2009. Age, gender, diagnosis, findings of physical examination, results of preoperative laboratory investigations, radiological examination, criteria for resection, postoperative pathological results, incisions, operative technique, intraoperative transfusion, drains, and intraoperative and postoperative complications were evaluated for all patients. RESULTS: Type Ⅰ IVCTT (10 patients) was posterior to the liver and below the diaphragm; type Ⅱ IVCTT (2 patients) was above the diaphragm but still outside the atrium; and type Ⅲ IVCTT (1 patient) was above the diaphragm and in the right atrium. Type Ⅰ was treated by radical hepatectomy and removal of IVCTT with total hepatic vascular exclusion. Type Ⅱ was treated by radical hepatectomy and removal of IVCTT by incision of the diaphragm. Type Ⅲ was treated by hepatectomy and resection of the thrombus from the right atrium under cardiopulmonary bypass. There were no surgical complications and one patient has been survived for 4 years with cancer-free status. The median survival time was 18.2 months, and the 1-and 2-year survival rates were 53.8% and 15.4%, respectively. CONCLUSION: Surgical treatment is safe and feasible for treatment of IVCTT in patients with hepatocellular carcinoma, and surgical resectability can be judged according to the classification of tumor thrombus.Ai-Jun Li Wei-Ping Zhou Chuan Lin Xi-Long Lang Zhen-Guang Wang Xiao-Yu Yang Qing-He Tang Ran Tao Meng-Chao Wu 2013Hepatobiliary & Pancreatic Diseases International2013,12,3:15
15SHRIMP zircon U-Pb dating for gabbro from the Tiding ophiolite in Tibet显示文摘WANG Ran XIA Bin ZHOU Guoqing ZHANG Yuquan YANG Zhiqing LI Wenqian WEI Dongliang ZHONG Lifeng XU Lifeng 2006Chinese Science Bulletin2006,51,14:14
16Endothelium-specific SIRT1 overexpression inhibits hyperglycemia-induced upregulation of vascular cell senescence显示文摘The rapidly increasing prevalence of diabetes mellitus worldwide is one of the most serious and challenging health problems in the 21st century.Mammalian sirtuin 1(SIRT1) has been shown to decrease high-glucose-induced endothelial cell senescence in vitro and prevent hyperglycemia-induced vascular dysfunction.However,a role for SIRT1 in prevention of hyperglycemia-induced vascular cell senescence in vivo remains unclear.We used endothelium-specific SIRT1 transgenic(SIRT1-Tg) mice and wild-type(WT) mice to construct a 40-week streptozotocin(STZ)-induced diabetic mouse model.In this mode,42.9% of wild-type(WT) mice and 38.5% of SIRT1-Tg mice were successfully established as diabetic.Forty weeks of hyperglycemia induced significant vascular cell senescence in aortas of mice,as indicated by upregulation of expression of senescence-associated markers including p53,p21 and plasminogen activator inhibitor-1(PAI-1).However,SIRT1-Tg diabetic mice displayed dramatically decreased expression of p53,p21 and PAI-1 compared with diabetic WT mice.Moreover,manganese superoxide dismutase expression(MnSOD) was significantly downregulated in the aortas of diabetic WT mice,but was preserved in diabetic SIRT1-Tg mice.Furthermore,expression of the oxidative stress adaptor p66Shc was significantly decreased in aortas of SIRT1-Tg diabetic mice compared with WT diabetic mice.Overall,these findings suggest that SIRT1-mediated inhibition of hyperglycemia-induced vascular cell senescence is mediated at least partly through the reduction of oxidative stress.CHEN HouZao WAN YanZhen ZHOU Shuang LU YunBiao ZHANG ZhuQin ZHANG Ran CHEN Feng HAO DeLong ZHAO Xiang GUO ZhiChen LIU DePei LIANG ChihChuan 2012Science China(Life Sciences)2012,55,6:14
17The microphysics of ice accretion on wires:Observations and simulations显示文摘The weather system, meteorological conditions, and microphysics of cloud, fog, and rain droplets are studied during the formation, growth, maintenance, and shedding periods of ice accretion on wires in Enshi, Hubei Province in China using 2008/2009 and 2009/2010 winter observations. The comprehensive observations include data of visibility, microphysics of fog and rain droplets, and ice thickness, as well as data from an automated weather station and other routinely recorded meteorological data. The results show that icing occurred during the passage of a cold front, with a high-pressure system and a cold temperature trough at 850 hPa, and a southeasterly at 500 hPa that provided abundant moisture. Ice formation usually started in the evening or early morning, and ice shed around noon the following day when the temperature was-1°C to 0°C. The averaged liquid water content of the fog droplet was distinctly greater during the growth period than during the other three periods, and there was precipitation during the growth period in each case of ice accretion. The growth rate of the ice thickness was clearly correlated with the liquid water content, with a correlation coefficient of 0.62. Simulations using empirical equations were carried out, and the simulated ice thickness agreed with observations fairly well.NIU ShengJie ZHOU Yue JIA Ran YANG Jun LUE JingJing KE YiMing YANG ZhiBiao 2012Science China Earth Sciences2012,55,3:12
18Effects of dietary yeast nucleotides on growth, non-specific immunity intestine growth and intestinal microbiota of juvenile hybrid tilapia Oreochromis niloticus ♀ × Oreochromis aureus ♂显示文摘This study investigated the effect of dietary supplementation of yeast nucleotides on the growth, nonspecific immunity, intestine growth and intestinal microbiota of juvenile hybrid tilapia. Tilapia(initial average weight of 8.02 g) was fed test diets supplemented with a yeast-originated nucleotide mixture(0,0.15, 0.30, 0.60, and 1.20 g/100 g diet) for 8 weeks. Fish fed the diet with 0.60% nucleotide had significantly higher weight gain than the control group(P < 0.05). Feed efficiency was improved in the fish fed 0.60 and 1.20% nucleotide compared with that in the control group. The optimal doses of nucleotides supplementation for growth and feed efficiency of fish were determined as 0.63 and 0.81%, respectively.Intestinal growth was improved in the 0.30 and 0.60% groups, as indicated by significant increase in intestine length. The fish fed 0.60 and 1.20% nucleotide showed higher super oxide dismutase(SOD)activity and lower malondialdehyde(MDA) level in the liver than the control fish, indicating enhancement of the anti-oxidant status. Serum lysozyme activity was significantly increased in the 0.15 and 0.3%nucleotide supplementation groups, suggesting an enhancement effect on the non-specific immune response. Lastly, dietary nucleotides supplementation exerted moderate influence on the intestinal microbiota of hybrid tilapia. A reduction in the cumulative abundance of putative butyrate-producing species was observed in the intestinal microbiota of fish fed diets with 0.60% nucleotide compared with the control, implying an interaction between dietary nucleotides and butyrate production. Briefly, dietary supplementation with 0.60% nucleotide improve the growth performance, immune activity and intestine growth in tilapia.Li Xu Chao Ran Suxu He Jianli Zhang Jun Hu Yalin Yang Zhenyu Du Yanou Yang Zhigang Zhou 2015Animal Nutrition2015,,3:12
19Electrochemical and spectroscopic characteristics of dissolved organic matter in a forest soil profile显示文摘Dissolved organic matter(DOM) represents one of the most mobile and reactive organic compounds in ecosystem and plays an important role in the fate and transport of soil organic pollutants, nutrient cycling and more importantly global climate change.Electrochemical methods were first employed to evaluate DOM redox properties, and spectroscopic approaches were utilized to obtain information concerning its composition and structure. DOM was extracted from a forest soil profile with five horizons. Diferential pulse voltammetry indicated that there were more redox-active moieties in the DOM from upper horizons than in that from lower horizons.Cyclic voltammetry further showed that these moieties were reversible in electron transfer. Chronoamperometry was employed to quantify the electron transfer capacity of DOM, including electron acceptor capacity and electron donor capacity, both of which decreased sharply with increasing depth. FT-IR, UV-Vis and fluorescence spectra results suggested that DOM from the upper horizons was enriched with aromatic and humic structures while that from the lower horizons was rich in aliphatic carbon, which supported the findings obtained by electrochemical approaches. Electrochemical approaches combined with spectroscopic methods were applied to evaluate the characteristics of DOM extracted along a forest soil profile. The electrochemical properties of DOM, which can be rapidly and simply obtained, provide insight into the migration and transformation of DOM along a soil profile and will aid in better understanding of the biogeochemical role of DOM in natural environments.Ran Bi Qin Lu Tian Yuan Shungui Zhou Yong Yuan Yanfei Cai 2013Journal of Environmental Sciences2013,25,10:11
20Antibiotic growth promoter olaquindox increases pathogen susceptibility in fish by inducing gut microbiota dysbiosis显示文摘Low dose antibiotics have been used as growth promoters in livestock and fish. The use of antibiotics has been associated with reduced pathogen infections in livestock. In contrast, antibiotic growth promoter has been suspected of leading to disease outbreaks in aquaculture. However, this phenomenon is circumstantial and has not been confirmed in experimental conditions. In this study,we showed that antibiotic olaquindox increased the susceptibility of zebrafish to A. hydrophila infection. Olaquindox led to profound alterations in the intestinal microbiota of zebrafish, with a drastic bloom of Enterobacter and diminishing of Cetobacterium. Moreover, the innate immune responses of zebrafish were compromised by olaquindox(P<0.05). Transfer of microbiota to GF zebrafish indicated that while the immuo-suppression effect of olaquindox is a combined effect mediated by both OLA-altered micro biota and direct action of the antibiotic(P<0.05), the increased pathogen susceptibility was driven by the OLA-altered microbiota and was not dependent on direct antibiotic effect. Taken together, these data indicate that low level of OLA induced gut microbiota dysbiosis in zebrafish, which led to increased pathogen susceptibility.suxu he quanmin wang shuning li chao ran xiaoze guo zhen zhang zhigang zhou 2017Science China(Life Sciences)2017,60,11:10
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