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7883篇 您的检索式:作者名="Ding Zhang"
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1A Major QTL, Ghd8, Plays Pleiotropic Roles in Regulating Grain Productivity, Plant Height, and Heading Date in Rice显示文摘瑞斯产量和标题日期是量的特点 loci (QTL ) 控制的二个不同特点。位于米饭收益特点下面的分子的机制的解剖为开发 high-yielding 米饭变化是重要的。这里,我们报导克隆和 Ghd8,有谷物产量上的多种的效果的主要 QTL,标题日期,和植物高度的描述。近的 isogenic 线人口的二个集合为克隆 Ghd8 被开发。Ghd8 被变窄到包含二通常认为的基因的一个 20-kb 区域,哪个编码 CCAAT 盒子有约束力的蛋白质(幸运建筑群) 的 OsHAP3 子单元;这基因被认为是 Ghd8 候选人。互补测试证实了身份和基因的多种的效果;有趣地, Ghd8 的基因效果依赖于它的基因背景。由调整 Ehd1, RFT1,和 Hd3a, Ghd8 在长天的条件下面推迟了 flowering,但是在短天的条件下面支持了 flowering。Ghd8 起来调整的 MOC1,控制 tillering 并且分叉的关键基因;这增加了 tillers 的数字,主要、第二等的分支,因此每植物生产 50% 更多的谷物。在 Arabidopsis 的 Ghd8 的宫外的表示在 10 引起了早 flowering ? 类似于那种的 da 状况由它的相当或相同的事物 AtHAP3b 观察了,什么时候与相比在长天的条件下面野类型;这些调查结果在 Arabidopsis 在 flowering 显示 Ghd8 和 AtHAP3b 的保存功能。我们的结果在米饭产量表明了 Ghd8 的重要角色形成和 flowering,以及它的反面在长天的条件下面在在米饭和 Arabidopsis 之间的 flowering 工作。Wen-Hao Yan Peng Wang Hua-Xia Chen Hong-Ju Zhou Qiu-Ping Li Chong-Rong Wang Ze-Hong Ding Yu-Shan Zhang Si-Bin Yu Yong-Zhong Xing Qi-Fa Zhang 2011Molecular Plant2011,4,2:127
2Efficient genome editing in plants using a CRISPR/Cas system显示文摘Zhengyan Feng Botao Zhang Wona Ding Xiaodong Liu Dong-Lei Yang Pengliang Wei Fengqiu Cao Shihua Zhu Feng Zhang Yanfei Mao Jian-Kang Zhu 2013Cell Research2013,23,10:211
3CRISPR/Cas9-mediated gene editing in human tripronuclear zygotes显示文摘染色体编辑工具例如定期聚类短 palindromic 重复(CRISPR ) 联系了的 interspaced 系统(Cas ) 广泛地被用来包括动物接合子和人的房间在模型系统修改基因,并且为基本研究和临床的应用保持巨大的诺言。迄今为止,严肃的知识差距在人的早胚胎,并且在效率和在人的培植前胚胎使用象 CRISPR/Cas9 那样的技术的潜在的离开目标效果留在我们 DNA 修理机制的理解。在这份报告,我们使用了推进的接合子调查 CRISPR/Cas9-mediated 基因在人的房间编辑的 tripronuclear (3PN ) 。我们发现 CRISPR/Cas9 能有效地劈开内长的 -globin 基因(HBB ) 。然而,相应再结合的效率指导了 HBB 的修理(HDR ) 是低的,编辑胚胎是马赛克。离开目标劈开在由 T7E1 试金并且 whole-exome 定序揭示了的这些 3PN 接合子也是明显的。而且,内长的 delta-globin 基因(HBD ) 对 HBB 相应,与外长的施主 oligos 竞争了充当修理模板,导致倔强的变化。我们的数据也显示在这些胚胎的 HBB 地点的修理通过非转线路 HDR 小径优先地发生了。一起拿,我们的工作加亮紧迫的需要进一步改进 CRISPR/Cas9 平台的忠实和特性,为编辑的 CRSIPR/Cas9-mediated 的任何临床的应用程序的一个前提。Puping Liang Yanwen Xu Xiya Zhang Chenhui Ding Rui Huang Zhen Zhang Jie Lv Xiaowei Xie Yuxi Chen Yujing Li Ying Sun Yaofu Bai Zhou Songyang Wenbin Ma Canquan Zhou Junjiu Huang 2015Protein & Cell2015,6,5:149
4Sodium oligomannate therapeutically remodels gut microbiota and suppresses gut bacterial amino acids-shaped neuroinflammation to inhibit Alzheimer's disease progression显示文摘Recently,increasing evidence has suggested the association between gut dysbiosis and Alzheimer's disease(AD)progression,yet the role of gut microbiota in AD pathogenesis remains obscure.Herein,we provide a potential mechanistic link between gut microbiota dysbiosis and neuroinflammation in AD progression.Using AD mouse models,we discovered that,during AD progression,the alteration of gut microbiota composition leads to the peripheral accumulation of phenylalanine and isoleucine,which stimulates the differentiation and proliferation of pro-inflammatory T helper 1(Thl)cells.The brain-infiltrated peripheral Th1 immune cells are associated with the Ml microglia aaivation,contributing to AD-associated neuroinflammation.Importantly,the elevation of phenylalanine and isoleucine concentrations and the increase of Th1 cell frequency in the blood were also observed in two small independent cohorts of patients with mild cognitive impairment(MCI)due to AD.Furthermore,GV-971,a sodium oligomannate that has demonstrated solid and consistent cognition improvement in a phase 3 clinical trial in China,suppresses gut dysbiosis and the associated phenylalanine/isoleucine accumulation,harnesses neuroinflammation and reverses the cognition impairment.Together,our findings highlight the role of gut dysbiosis-promoted neuroinflammation in AD progression and suggest a novel strategy for AD therapy by remodelling the gut microbiota.Xinyi Wang Guangqiang Sun Teng Feng Jing Zhang Xun Huang Tao Wang Zuoquan Xie Xingkun Chu Jun Yang Huan Wang Shuaishuai Chang Yanxue Gong Lingfei Ruan Guanqun Zhang Siyuan Yan Wen Lian Chen Du Dabing Yang Qingli Zhang Feifei Lin Jia Liu Haiyan Zhang Changrong Ge Shifu Xiao Jian Ding Meiyu Geng 2019Cell Research2019,29,10:192
5Prevalence of Autism Spectrum Disorder in China:A Nationwide Multi-center Population-based Study Among Children Aged 6 to 12 Years显示文摘This study aimed to obtain the first national estimate of the prevalence of autism spectrum disorder(ASD) in Chinese children.We targeted the population of 6 to 12-year-old children for this prevalence study by multistage convenient cluster sampling.The Modified Chinese Autism Spectrum Rating Scale was used for the screening process.Of the target population of 142,086 children,88.5%(n=125,806) participated in the study.A total of 363 children were confirmed as having ASD.The observed ASD prevalence rate was 0.29%(95% CI:0.26%-0.32%) for the overall population.After adjustment for response rates,the estimated number of ASD cases was867 in the target population sample,thereby achieving an estimated prevalence of 0.70%(95% CI:0.64%-0.74%).The prevalence was significantly higher in boys than in girls(0.95%;95% CI:0.87%-1.02% versus 0.30%;95%CI:0.26%-0.34%;P <0.001).Of the 363 confirmed ASD cases,43.3% were newly diagnosed,and most of those(90.4%) were attending regular schools,and 68.8% of the children with ASD had at least one neuropsychiatric comorbidity.Our findings provide reliable data on the estimated ASD prevalence and comorbidities in Chinese children.Hao Zhou Xiu Xu Weili Yan Xiaobing Zou Lijie Wu Xuerong Luo Tingyu Li Yi Huang Hongyan Guan Xiang Chen Meng Mao Kun Xia Lan Zhang Erzhen Li Xiaoling Ge Lili Zhang Chunpei Li Xudong Zhang Yuanfeng Zhou Ding Ding Andy Shih Eric Fombonne Yi Zheng Jisheng Han Zhongsheng Sun Yong-hui Jiang Yi Wang LATENT-NHC Study Team 2020Neuroscience Bulletin2020,36,9:158
6Towards 6G wireless communication networks:vision,enabling technologies,and new paradigm shifts显示文摘The fifth generation(5G)wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized,such as mass connectivity,ultra-reliability,and guaranteed low latency.However,5G will not meet all requirements of the future in 2030 and beyond,and sixth generation(6G)wireless communication networks are expected to provide global coverage,enhanced spectral/energy/cost efficiency,better intelligence level and security,etc.To meet these requirements,6G networks will rely on new enabling technologies,i.e.,air interface and transmission technologies and novel network architecture,such as waveform design,multiple access,channel coding schemes,multi-antenna technologies,network slicing,cell-free architecture,and cloud/fog/edge computing.Our vision on 6G is that it will have four new paradigm shifts.First,to satisfy the requirement of global coverage,6G will not be limited to terrestrial communication networks,which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle(UAV)communication networks,thus achieving a space-airground-sea integrated communication network.Second,all spectra will be fully explored to further increase data rates and connection density,including the sub-6GHz,millimeter wave(mmWave),terahertz(THz),and optical frequency bands.Third,facing the big datasets generated by the use of extremely heterogeneous networks,diverse communication scenarios,large numbers of antennas,wide bandwidths,and new service requirements,6G networks will enable a new range of smart applications with the aid of artificial intelligence(AI)and big data technologies.Fourth,network security will have to be strengthened when developing 6G networks.This article provides a comprehensive survey of recent advances and future trends in these four aspects.Clearly,6G with additional technical requirements beyond those of 5G will enable faster and further communications to the extent that the boundary between physical and cyber worlds disappears.Xiaohu YOU Cheng-Xiang WANG Jie HUANG Xiqi GAO Zaichen ZHANG Mao WANG Yongming HUANG Chuan ZHANG Yanxiang JIANG Jiaheng WANG Min ZHU Bin SHENG Dongming WANG Zhiwen PAN Pengcheng ZHU Yang YANG Zening LIU Ping ZHANG Xiaofeng TAO Shaoqian LI Zhi CHEN Xinying MA Chih-Lin I Shuangfeng HAN Ke LI Chengkang PAN Zhimin ZHENG Lajos HANZO Xuemin(Sherman)SHEN Yingjie Jay GUO Zhiguo DING Harald HAAS Wen TONG Peiying ZHU Ganghua YANG Jun WANG Erik GLARSSON Hien Quoc NGO Wei HONG Haiming WANG Debin HOU Jixin CHEN Zhe CHEN Zhangcheng HAO Geoffrey Ye LI Rahim TAFAZOLLI Yue GAO HVincent POOR Gerhard P.FETTWEIS Ying-Chang LIANG 2021Science China(Information Sciences)2021,64,1:122
7Primary antibiotic resistance of Helicobacter pylori strains isolated from patients with dyspeptic symptoms in Beijing: A prospective serial study显示文摘AIM:To determine the resistance patterns of Helicobacter pylori(H.pylori) strains isolated from patients in Beijing and monitor the change of antibiotic resistance over time.METHODS:In this prospective,serial and crosssectional study,H.pylori cultures were successfully obtained from 371 and 950 patients(never receiving eradication) during 2009-2010 and 2013-2014,respectively.Resistance to amoxicillin,clarithromycin,metronidazole,levofloxacin,tetracycline,and rifampicin was determined by Epsilometer test.RESULTS:The resistance rates of isolates obtained during 2009-2010 were 66.8%,39.9%,34.5%,15.4%,6.7%,and 4.9% to metronidazole,clarithromycin,levofloxacin,rifampicin,amoxicillin and tetracycline,respectively; and the corresponding rates for isolates during 2013-2014 were 63.4%,52.6%,54.8%,18.2%,4.4% and 7.3%,respectively.The resistance rates to clarithromycin and levofloxacin were significantly increased after four years.In 2009-2010,14.6% of H.pylori isolates were susceptible to all tested antibiotics,with mono(33.7%),double(28.3%),triple(16.7%),quadruple(6.2%),quintuple(0.3%) and sextuple resistance(0.3%) also being detected.In 2013-2014,9.4% were susceptible to all tested antibiotics,and mono(27.6%),double(28.4%),triple(24.9%),quadruple(7.3%),quintuple(2.3%) and sextuple resistance(0.1%) was also observed.More multiple resistant H.pylori isolates were found during 2013-2014.Gender(to levofloxacin and metronidazole),age(to levofloxacin) and endoscopic findings(to clarithromycin) were independent factors influencing antibiotic resistance.CONCLUSION:H.pylori resistance to commonly used antibiotics in Beijing is high with increased multiple antibiotic resistance.Yue-Xi Zhang Li-Ya Zhou Zhi-Qiang Song Jian-Zhong Zhang Li-Hua He Yu Ding 2015World Journal of Gastroenterology2015,21,9:138
8The Genome of Dendrobium officinale Illuminates the Biology of the Important Traditional Chinese Orchid Herb显示文摘Liang Yan Xiao Wang Hui Liu Yang Tian Jinmin Lian Ruijuan Yang ShumeiHao Xuanjun Wang Shengchao Yang Qiye Li Shuai Qi Ling Kui Moses Okpekum Xiao Ma Jiajin Zhang Zhaoli Ding Guojie Zhang Wen Wang Yang Dong Jun Sheng 2015Molecular Plant2015,8,6:64
9Diagnostic value of glypican-3 in serum and liver for primary hepatocellular carcinoma显示文摘AIM:To evaluate the diagnostic value of glypican-3(GPC3) in serum and liver for primary hepatocellular carcinoma(HCC).METHODS:Serum levels of GPC3 and α-fetoprotein(AFP) were measured in 75 patients with primary HCC and 32 patients with liver cirrhosis.Expression of GPC3 and AFP in 58 HCC and 12 cirrhotic specimens was detected with immunohistochemical staining.RESULTS:When the cut-off value of serum GPC3 was set at 300 ng/L,its sensitivity and specificity for HCC were 47.0% and 93.5%,respectively.Among the 14 patients with HCC at stage according to the Barcelona Clinic Liver Cancer staging system,the serum GPC3 level was higher than 300 ng/L in 50%(7/14) patients,the serum AFP level was not ≥ 400 μg/L in any patient.Combined serum AFP and GPC3 significantly increased the sensitivity to the diagnosis of HCC.The GPC3 expression was detected in cytoplasm of HCC cells but not in hepatocytes and bile ducts of benign tumors.Among the 58 HCC patients,the GPC3 was expressed in 100%(28/28) patients with their serum AFP level ≥ 400 μg/L,and in 90%(27/30) patients with their AFP level < 400 μg/L,respectively.The GPC3 was weakly or negatively expressed in all paracarcinomatous and cirrhotic tissue samples.AFP positive HCC cells were only found in 1 out of the 58 HCC patients.CONCLUSION:GPC3 protein is a sensitive and specific serum marker for diagnosis of early HCC.Its expression in liver tissues can be used to discriminate tumor cells from benign hepatic cells.Hui Liu Li-Jie Zhang Peng Li Yun Zhai Yu-Fen Tan Ning Li Hui-Guo Ding Chun-Feng Qu 2010World Journal of Gastroenterology2010,16,35:57
10MiR-375 frequently downregulated in gastric cancer inhibits cell proliferation by targeting JAK2显示文摘新兴的证据与肿瘤开发和前进显示出异常地表示的 microRNAs (miRNAs ) 的协会。然而,很少在胃的 carcinogenesis 对 miRNAs 的潜在的角色被知道。这里,我们执行了 miRNA microarray 屏蔽在配对的胃的癌症和他们的邻近的 nontumor 纸巾表示并且发现 miR-375 是的 miRNAs 差别极大地在胃的癌症纸巾的 downregulated。量的即时 PCR 分析证实那 miR-375 表情显著地从经历胃的切除术的病人与他们的 nontumor 对应物相比在超过 90% 主要胃的癌症被减少。miR-375 的 Overexpression 显著地在 vitro 并且在 vivo 禁止了胃的癌症房间增长。在胃的癌症房间的 miR-375 的强迫的表示显著地减少了 Janus kinase 的蛋白质水平 2 ( JAK2 )并且镇压带 JAK2 的 3 鈥? untranslated 区域的一个酶记者的活动,被预言的 miR-375-binding 地点的变化废除,显示那 JAK2 可以是 miR-375 目标基因。由由 RNAi 的 JAK2 的 AG490 或 silencing 的 JAK2 活动的任何一个抑制压制了类似于 miR-375 overexpression 的胃的癌症房间增长。而且, JAK2 的宫外的表示能部分颠倒 miR-375 引起的房间增长的抑制。最后,我们在胃的癌症发现了在 miR-375 表示和 JAK2 蛋白质水平之间的重要反的关联。因此,这些数据建议 miR-375 可以作为肿瘤 suppressor 工作由指向 JAK2 oncogene 潜在地调整胃的癌症房间增长,含有在胃的癌症的致病的 miR-375 的一个角色。Ling Ding Yanjun Xu Wei Zhang Yujie Deng Misi Si Ying Du Haomi Yao Xuyan Liu Yuehai Ke Jianmin Si Tianhua Zhou 2010Cell Research2010,20,7:59
11A 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
12Control of atmospheric CO_2 concentrations by 2050: A calculation on the emission rights of different countries显示文摘This paper is to provide quantitative data on some critical issues in anticipation of the forthcoming international negotiations in Denmark on the control of atmospheric CO2 concentrations. Instead of letting only a small number of countries dominate a few controversial dialogues about emissions reductions, a comprehensive global system must be established based on emissions allowances for different countries, to realize the long-term goal of controlling global atmospheric CO2 concentrations. That a system rooted in 'cumulative emissions per capita,' the best conception of the 'common but differentiated responsibilities' principle affirmed by the Kyoto Protocol according to fundamental standards of fairness and justice, was demonstrated. Based on calculations of various countries' cumulative emissions per capita, estimates of their cumulative emissions from 1900 to 2005, and their annual emissions allowances into the future (2006―2050), a 470 ppmv atmospheric CO2 concentration target was set. According to the following four objective indicators―total emissions allowance from 1900 to 2050, actual emissions from 1900 to 2005, emissions levels in 2005, and the average growth rate of emissions from 1996 to 2005―all countries and regions whose population was more than 300000 in 2005 were divided into four main groups: countries with emissions deficits, countries and regions needing to reduce their gross emissions, countries and regions needing to reduce their emissions growth rates, and countries that can maintain the current emissions growth rates. Based on this proposal, most G8 countries by 2005 had already expended their 2050 emissions allowances. The accu-mulated financial value based on emissions has reached more than 5.5 trillion US dollars (20 dollars per ton of CO2). Even if these countries could achieve their ambitious emissions reduction targets in the future, their per capita emissions from 2006 to 2050 would still be much higher than those of developing countries; under such circumstance, these future emissions would create more than 6.3 trillion US dollars in emissions deficits. Because of their low cumulative emissions per capita, most developing countries fall within one of the latter two groups, which means that they have leeway for making emissions decisions in the future. Although China accounts for more than 30% of the total global emissions allowance from 2006 to 2050, its total emissions can be controlled within that allow-ance by no other way than reducing its future emissions growth rates. In the end, nine key issues related to international climate negotiations were briefly addressed.DING ZhongLi1, DUAN XiaoNan2, GE QuanSheng3 & ZHANG ZhiQiang4 1 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 2 The General Office of Chinese Academy of Sciences, Beijing 100864, China 3 Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China 4 The Lanzhou Branch of the National Science Library, the Scientific Information Center for Resources and Environment, Lanzhou 730000, China 2009Science China Earth Sciences2009,52,10:50
13Elevation of tumor necrosis factor-α,interleukin-1β and interleukin-6 levels in aortic intima of Chinese Guizhou minipigs with streptozotocin-induced diabetes显示文摘有调停毒素的胰腺的损坏的背景大动物模型关于糖尿病 mellitus 和心血管的糖尿病的复杂并发症在研究广泛地被使用了。试图证实有 streptozotocin ( STZ )的中国贵州 minipig 模型导致了糖尿病并且描绘动物的现在的学习由在大动脉的墙中分析煽动性的 cytokine 层次当模特儿,例如肿瘤坏死因素( TNF ), interleukin-1 ( IL-1 )和 interleukin-6 ( IL-6 ) .Methods 22 男中国贵州 minipigs (变老, 4~6 个月;重量, 20 kg 到 30 kg ) 被划分成导致 STZ 的糖尿病的组(n=12 ) 和控制组(n=10 ) 。STZ (125 mg/kg ) 被管理导致多糖症,以后,胰岛素被用来在 10 mmol/L 下面控制 fasting 血葡萄糖层次。口头的葡萄糖忍耐测试(OGTT ) 以前被执行并且在 STZ 管理和丙氨酸 transaminase,天门冬素 transaminase,白朊,血脲氮, creatinine,类脂化合物和白色的浆液集中以后的一个月血房间计数以前并且六个月以后被测量。在六个月和胰为小岛房间 immunohistochemically 被检验以后,在两个组的动物是 euthanized。糖尿病的 minipigs 和控制的大动脉的 intima 在由西方的污点中等的调节的组织为 TNF- 水平被分析。在大动脉的 intima 的 TNF- , IL-1 和 IL-6 mRNA 层次是由反向的抄写和聚合酶链反应(RT-PCR ).Results 的 assayed 在浆液葡萄糖层次的重要举起被观察在 STZ 正式就职(P0.001 ) 和显著地增加的 OGTT 价值以后的一个月和六个月被注意,与基线数据相比。正常的胰有许多不规则的大小的小岛和小岛房间的小簇,当在糖尿病的 minipigs 的胰小岛房间几乎消失了时。没有统计差别以前在生物化学的考试的浆液集中被通知并且在 STZ 以后的六个月感应。西方的污点证明在 aotic intima 的戏剧性地增加的TNF-水平调节了TNF-, IL-1 和 IL-6 的中等、重要的举起 mRNA 层次被现在的学习建立了的 RT-PCR.Conclusions 揭示有 导致STZ 的 diabetes.Inflammatory cytokines 的中国贵州 minipig 模型(TNF-, IL-1 和 IL-6 )显著地在糖尿病的 minipigs 的大动脉的 intima 提高了。LU Lin ZHANG Qi PU Li-jin XU Xue-wei ZHANG Rui-yan ZHANG Jian-sheng HU Jian YANG Zheng-kun LU An-kang DING Feng-hua SHEN Jie CHEN Qiu-jin LOU Sheng FANG Dan-hong SHEN Wei-feng 2007Chinese Medical Journal2007,,6:43
14The relationship between NDVI and precipitation on the Tibetan Plateau显示文摘西藏的高原上的 NDVI 的时间、空间的变化,以及在 NDVI 和降水之间的关系,在这份报纸被讨论,由使用 8-km 分辨率从 1982 ~ 1999 的多时间的 NOAA AVHRR-NDVI 数据。每月最大的 NDVI 和每月的降雨被用来分析季节的变化,和年度最大值 NDVI,年度有效降水和成长季节降水(从 4 月到 8 月) 被用来讨论 interannual 变化。在 NDVI 和降雨之间的 NDVI 和关联系数的动态变化为每个象素被计算。结果如下:(1 ) NDVI 在种季节到达了山峰(从 7 月到 9 月) 在西藏的高原上。在高原的北、西方的部分,成长季节是很短的(大约二或三个月) ;但是在里面南部,植被几乎所有一年周围成长了。每月最大的 NDVI 和每月的降雨的关联在不同区域变化了。它在西方、北、南部的部分是弱的,但是在中央、东方的部分强壮。(2 ) NDVI interannual 的空间分发动态变化也是不同的。增加区域主要在南部的西藏山区的灌木大草原地区,西方的四川东方的西藏山区的具球果的森林地区的西方的部分, Kunlun 山区的荒芜的地区的北斜坡的西方的部分和 Himalaya 的南部的斜坡的东南的部分被散布山区常绿树阔叶的森林地区;减少区域主要在 Qaidam 山区的荒芜的地区,东方 Qinghai-Qilian 山区的大草原地区的西方、北的部分,南部的 Qinghai 高冷的草地大草原地区和 Ngari 被散布山区的荒芜大草原、荒芜的地区。在年度有效降雨和年度最大的 NDVI 之间的关联系数的空间分发类似于成长季节降雨和年度最大的 NDVI ,并且与中等植被盖子在草地和草地在 NDVI 和降雨之间有好关系,并且植被上的降雨的效果在森林和荒芜的区域里是小的。DING Mingjun ZHANG Yili LIU Linshan ZHANG Wei WANG Zhaofeng BAI Wanqi 2007Journal of Geographical Sciences2007,17,3:45
15Immunoregulatory Effects of Ethyl-acetate Fraction of Extracts from Tetrastigma Hemsleyanum Diels et. Gilg on Immune Functions of ICR Mice显示文摘Objective To evaluate the effects of ethyl-acetate fraction (EAF) of extracts from Tetrastigma hemsleyanum Diels et. Gilg (TDG) on immune functions of ICR mice. Methods ICR mice were exposed to different doses of EAF for 15 or 30 days and then their immune functions were analyzed, including ConA-induced splenic lymphocyte transformation, SRBC- induced delayed type hypersensitivity response, serum hemolysin analysis, antibody-producing cells, peritoneal macrophage phagocytized chicken red blood cells, natural killer cell activity, and serum level of cytokines. Results EAF of extracts from TDG at different doses had various effects on immune functions of ICR mice. As compared with the controls, it increased the mouse spleen lymphocyte transformation induced by ConA, the left-hind voix pedis thickness and the number of plague forming cells (PFCs) at the dose of 1.82 mg/mL, 5.48 mg/mL, and 9.12 mg/mL, respectively; increased the ink clearance ability at the dose of 0.91 mg/mL, 1.82 mg/mL, 5.48 mg/mL, and 9.12 mg/mL, respectively; increased the phagocytosis index of mononuclear-macrophages and production of serum interferon-gamma (IFN-γ) at the dose of 5.48 mg/mL; and could promote the production of serum tumor necrosis factor-alpha (TNF-α) at the dose of 9.12 mg/mL. Conclusion EAF of extracts from TDG can regulate mouse immune functions in vivo.CAI-JU XU GANG-QIANG DING JIAN-YUN FU JIA MENG RONG-HUA ZHANG XIAO-MING LOU 2008Biomedical and Environmental Sciences2008,21,4:49
16Effects of AT1 receptor antagonist,Iosartan,on rat hepatic fibrosis induced by CCl_4显示文摘AIM To investigate effect of losartan,an AT1receptor antagonist,on hepatic fibrosis induced byCCl;and to determine whether or not AT1receptors are expressed on hepatic stellate cells,METHODS AND RESULTS Fifty male Sprague-Dawley rats,weighing(180±20)g,wererandomized into five groups(control group,modelgroup,and three losartan treated groups),inwhich all rats were given the subcutaneousinjection of 40% CCl4(every 3 days for 6 weeks)except for rats of control group.Rats of losartan-treated groups were treated with losartan(20 mg/kg,10 mg/kg,5 mg/kg,daily gavage),After 6weeks liver tissue and serum samples of all ratswere examined.Serum hyaluronic acid(HA),procollagen typeⅢ(PCⅢ)were detected byradioimmunoassays,van Giesion collagen stainingwas used to evaluate the extracellular matrix of ratswith liver fibrosis.The expression of AT1receptors,transforming growth factor-beta(TGF-β),and alpha-smooth muscle actin(a-SMA)inliver tissue were determined byimmunohistochemical techniques.Compared withmodel group,serum ALT and AST of losartan-treated groups were significantly reduced(t=4.20,P<0.01 and t=4.57,P<0.01).Serum HAand PCⅢalso had significant differences(t=3.53,P<0.01 and t=2.20,P<0.05).Thedegree of fibrosis was improved by losartan and correlated with the expressions of AT1 receptors,TGF-β,and α-SMA in liver tissue.CONCLUSION AT1 receptor antagonist,losartan,could limit the progression of the hepatic fibrosisinduced by CCl4.The mechanism may be related tothe decrease in the expression of AT1 receptorsand TGF-β,ameliorating the injury of hepatocytes;activation of local renin-angiotensin system mightrelate to hepatic fibrosis;and during progressionof fibrosis,activated hepatic stellate cells mightexpress AT1 receptors.Hong Shan Wei Ding Guo Li Han Ming Lu Yu Tao Zhan Zhi Rong Wang Xin Huang Jing Zhang Ji Lin Cheng Qin Fang Xu Department of Gastroenterology,Xinhua Hospital,Shanghai Second Medical University,Shanghai 200092,China 2000World Journal of Gastroenterology2000,6,4:42
17Spatiotemporal variation in alpine grassland phenology in the Qinghai-Tibetan Plateau from 1999 to 2009显示文摘Plant phenology is the most salient and sensitive indicator of terrestrial ecosystem response to climate change.Studying its change is significantly important in understanding and predicting impressively changes in terrestrial ecosystem.Based on NDVI from SPOT VGT,this paper analyzed the spatiotemporal changes in alpine grassland phenology in Qinghai-Tibetan Plateau from 1999 to 2009.The results are enumerated as follows:(1) The spatial distribution of the average alpine grassland phenology from 1999 to 2009 is closely related to water and heat conditions.Accompanying the deterioration in heat and water conditions from southeast to northwest,the start of growth season(SOG) was delayed gradually,the end of growth season(EOG) advanced slowly,and the length of growth season(LOG) shortened gradually.Elevation played an important role in the regional differentiation of phenology,but a dividing line of approximately 3500 m existed.Below this line,the phenology fluctuated irregularly with altitude change,whereas above the line,the phenology is closely related to altitude change.(2) From 1999 to 2009,SOG of the alpine grassland came earlier by six days per decade(R2=0.281,P=0.093),EOG was late by two days per decade(R2=0.031,P=0.605),and LOG lengthened by eight days per decade(R2=0.479,P=0.018).The early SOG,the late EOG,and the extended LOG mainly occurred at the center and east of the Plateau.SOG in most of the Plateau advanced significantly,especially in the eastern Plateau.(3) The inter-annual phenology changes of the alpine grassland in the Qinghai-Tibetan Plateau exhibited significant differentiation at different elevation and natural zones.The inter-annual changes at high altitude were more complicated than that at low altitude.The most significant phenology changes were found in the eastern Qinghai-Qilian montane steppe zone,and non-significant changes occurred in the Southern Tibet montane shrub-steppe zone.DING MingJun ZHANG YiLi SUN XiaoMin LIU LinShan WANG ZhaoFeng BAI WanQi 2013Chinese Science Bulletin2013,58,3:44
18The human long non-coding RNA-RoR is a p53 repressor in response to DNA damage显示文摘在应力之上,肿瘤 suppressor p53 的水平显著地被提高,是众所周知的。然而尽管有广泛的研究,包含的内在的机制重要为导致压力的 p53 规定内部播放器仍然不充分被理解。我们人的 lincRNA-RoR (RoR ) 是 p53 的一个强壮的否定管理者的现在的证据。不同于通过 ubiquitin-proteasome 小径引起 p53 降级的 MDM2, RoR 通过和异构的原子 ribonucleoprotein 的直接相互作用压制 p53 翻译我(hnRNP 我) 。重要地,带 hnRNP 的一个 28 底 RoR 序列我有约束力的主题为 p53 压抑必要、足够。我们进一步证明 RoR 禁止调停 p53 的房间周期拘捕和 apoptosis。最后,我们表明 p53 transcriptionally 导致 RoR 表示的一个 RoR-p53 自动调整的反馈环。一起,这些结果建议 RoR-hnRNP I-p53 轴可以组成一个另外的监视网络让房间更好对各种各样的压力作出回应。Ali Zhang Nanjiang Zhou Jianguo Huang Qian Liu Koji Fukuda Ding Ma Zhaohui Lu Cunxue Bai Kounosuke Watabe Yin-Yuan Mo 2013Cell Research2013,23,3:47
19Spatial and temporal variability in the net primary production of alpine grassland on the Tibetan Plateau since 1982显示文摘基于 GIMMS AVHRR NDVI 数据( 8 km 空间分辨率)为 19822000 , SPOT 植被 NDVI 数据( 1 km 空间分辨率)为 19982009 ,并且观察植物生物资源数据, CASA 模型习惯于在高山的草地的变化在西藏的高原( TP )上让主要生产( NPP )赚的模型。这研究将帮助评估高山的草地生态系统的健康条件,并且对高原牧场并且到 TP 上的国家生态的安全躲蔽处的函数的理解的持续开发的提升很重要。NPP 变化的时间空间的特征用空间统计分析被调查,独立根据 physico 地理的因素(自然地区,高度,纬度和经度) ,河盆,和县级的行政区域。处理的数据用一个 ENVI 4.8 平台被执行,当一个 ArcGIS 9.3 和 ANUSPLIN 平台被用来进行空间分析并且印射时。主要结果如下:(1 ) TP 上的高山的草地的 NPP 逐渐地从东南减少到西北,它在降水和温度对应于坡度。从 1982 ~ 2009,在 TP 高山的草地的平均年度全部的 NPP 是 177.2 ??  ??  ?ZHANG Yili QI Wei ZHOU Caiping DING Mingjun LIU Linshan GAO Jungang BAI Wanqi WANG Zhaofeng ZHENG Du 2014Journal of Geographical Sciences2014,24,2:47
20Transplantation of UC-MSCs on collagen scaffold activates follicles in dormant ovaries of POF patients with long history of infertility显示文摘Premature ovarian failure(POF) is a refractory disease for clinical treatment with the goal of restoring fertility. In this study,umbilical cord mesenchymal stem cells on a collagen scaffold(collagen/UC-MSCs) can activate primordial follicles in vitro via phosphorylation of FOXO3 a and FOXO1. Transplantation of collagen/UC-MSCs to the ovaries of POF patients rescued overall ovarian function, evidenced by elevated estradiol concentrations, improved follicular development, and increased number of antral follicles. Successful clinical pregnancy was achieved in women with POF after transplantation of collagen/UC-MSCs or UC-MSCs. In summary, collagen/UC-MSC transplantation may provide an effective treatment for POF.Lijun Ding Guijun Yan Bin Wang Lu Xu Yan Gu Tong Ru Xiaoying Cui Lei Lei Jingyu Liu Xiaoqiang Sheng Bin Wang Chunxue Zhang Yanjun Yang Ruiwei Jiang Jianjun Zhou Na Kong Feifei Lu Huaijun Zhou Yannan Zhao Bing Chen Yali Hu Jianwu Dai Haixiang Sun 2018Science China(Life Sciences)2018,61,12:43
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