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11108篇 您的检索式:作者名="Guo Chen"
    题名 作者 年代 出处 被引量
1Terrestrial vegetation carbon sinks in China,1981―2000显示文摘Using China's ground observations, e.g., forest inventory, grassland resource, agricultural statistics, climate, and satellite data, we estimate terrestrial vegetation carbon sinks for China's major biomes between 1981 and 2000. The main results are in the following: (1) Forest area and forest biomass car- bon (C) stock increased from 116.5×106 ha and 4.3 Pg C (1 Pg C = 1015 g C) in the early 1980s to 142.8×106 ha and 5.9 Pg C in the early 2000s, respectively. Forest biomass carbon density increased form 36.9 Mg C/ha (1 Mg C = 106 g C) to 41.0 Mg C/ha, with an annual carbon sequestration rate of 0.075 Pg C/a. Grassland, shrub, and crop biomass sequestrate carbon at annual rates of 0.007 Pg C/a, 0.014― 0.024 Pg C/a, and 0.0125―0.0143 Pg C/a, respectively. (2) The total terrestrial vegetation C sink in China is in a range of 0.096―0.106 Pg C/a between 1981 and 2000, accounting for 14.6%―16.1% of carbon dioxide (CO2) emitted by China's industry in the same period. In addition, soil carbon sink is estimated at 0.04―0.07 Pg C/a. Accordingly, carbon sequestration by China's terrestrial ecosystems (vegetation and soil) offsets 20.8%―26.8% of its industrial CO2 emission for the study period. (3) Considerable uncertainties exist in the present study, especially in the estimation of soil carbon sinks, and need further intensive investigation in the future.FANG JingYun GUO ZhaoDi PIAO ShiLong CHEN AnPing 2007Science China Earth Sciences2007,50,9:188
2Characterization of microRNAs in serum: a novel class of biomarkers for diagnosis of cancer and other diseases显示文摘在各种各样的纸巾的 microRNAs (miRNAs ) 的 Dysregulated 表示与许多疾病被联系了,包括癌症。这里,我们证明 miRNAs 在象老鼠,老鼠,牛的胎儿,小牛,和马那样的人和另外的动物的浆液和血浆是在场的。在浆液的 miRNAs 的层次在一样的种类的个人之中稳定、可再现、一致。采用 Solexa,我们定序健康中国题目的所有浆液 miRNAs 并且分别地在男、女的题目发现超过 100 和 91 浆液 miRNAs。我们也为肺癌症, colorectal 癌症,和糖尿病识别了浆液 miRNAs 的特定的表示模式,提供证据那浆液 miRNAs 为各种各样的疾病包含指纹。癌症特定的浆液 miRNAs 由 Solexa 获得了的二个非小的房间肺进一步在 75 个健康施主和 152 个癌症病人的独立审判被验证,用量的反向的抄写聚合酶链反应试金。通过这些分析,我们断定浆液 miRNAs 能为各种各样的癌症和另外的疾病的察觉用作潜在的 biomarkers。Xi Chen Yi Ba Lijia Ma Xing Cai Yuan Yin Kehui Wang Jig ang Guo Yujing Zhang Jiangning Chen Xing Guo Qibin Li Xiaoying Li Wenjing Wang Yan Zhang Jin Wang Xueyuan Jiang Yang Xiang Chen Xu Pingping Zheng Juanbin Zhang Ruiqiang Li Hongjie Zhang Xiaobin Shang Ting Gong Guang Ning Jun Wang Ke Zen Junfeng Zhang Chen-Yu Zhang 2008Cell Research2008,18,10:975
3Isolation and characterization of H7N9 viruses from live poultry markets--Implication of the source of current H7N9 infection in humans显示文摘On March 31, 2013, the National Health and Family Planning Commission announced that human infections with a previously undescribed influenza A (H7N9) virus had occurred in Shanghai and Anhui Province, China. To investigate the possible origins of the H7N9 viruses causing these human infections, we collected 970 samples, including drinking water, soil, and cloacal and tracheal swabs of poultry from live poultry markets and poultry farms in Shanghai and Anhui Province. Twenty samples were positive for the H7N9 influenza virus. Notably, all 20 viruses were isolated from samples collected from live poultry markets in Shanghai. Phylogenetic analyses showed that the six internal genes of these novel human H7N9 viruses were derived from avian H9N2 viruses, but the ancestor of their HA and NA genes is uncertain. When we examined the phylogenetic relationship between the H7N9 isolates from live poultry markets and the viruses that caused the human infections, we found that they shared high homology across all eight gene segments. We thus identified the direct avian origin of the H7N9 influenza viruses that caused the human infections. Importantly, we observed that the H7N9 viruses isolated from humans had acquired critical mutations that made them more 'human-like'. It is therefore imperative to take strong measures to control the spread of H7N9 viruses in birds and humans to prevent further threats to human health.SHI JianZhong DENG GuoHua LIU PeiHong ZHOU JinPing GUAN LiZheng LI WenHui LI XuYong GUO Jing WANG GuoJun FAN Jun WANG JinLiang LI YuanYuan JIANG YongPing LIU LiLing TIAN GuoBin LI ChengJun CHEN HuaLan 2013Chinese Science Bulletin2013,58,16:85
4A Novel Integrated Method for Large-Scale Detection, Identification, and Quantification of Widely Targeted Metabolites: Application in the Study of Rice Metabolomics显示文摘液体 chromatographymass spectrometry (最小公倍数) 基于 metabolomics 被 MS 2 的构造便于光谱从全部的扫描 ESI MS/MS 数据的标签(MS2T ) 图书馆,和广泛地指向的 metabolomics methodusing MS/MS 数据的发展从真标准聚在一起。在这份报告,称为逐步的多重离子 monitoring-enhancedproduct 离子(逐步的 MIMEPI ) 的新奇策略被开发构造 MS2T 图书馆,逐步的 MIM 在被用作调查 scansto 触发 EPI 的获得。698 的一个全部的数字(几乎) 有 MS 2 系列的非冗余的代谢物被获得,哪个 135 代谢物被识别 / 注解。集成数据从我们的 MS2T libraryand 收集了监视的另外的可得到的多重反应(MRM ) 信息,一个广泛地指向的 metabolomics 方法被开发 toquantify 277 代谢物,包括一些植物激素。在米饭叶的脱水回答和自然变化 ofthese 代谢物的评估不仅与代谢物 suchas 血清素衍生物建议了 abscisic 酸(骆驼毛的织物)的协调规定, polyamine 在干旱应力下面结合,而且为 indica 和装饰用的梨树米饭亚种的辨别作为潜在的标记揭示了一些 C-glycosylated 黄酮。新 MS2T 图书馆构造和广泛地指向的 metabolomics 策略能被用作工具 forrice 功能的 genomics.Key 词:Wei Chen Liang Gong Zilong GUO Wensheng Wang Hongyan Zhang Xianqing Liu SibinYu Lizhong Xiong Jie Luo 2013Molecular Plant2013,6,6:162
5Circular RNA is enriched and stable in exosomes: a promising biomarker for cancer diagnosis显示文摘Yan Li Qiupeng Zheng Chunyang Bao Shuyi Li Weijie Guo Jiang Zhao Di Chen Jianren Gu Xianghuo He Shenglin Huang 2015Cell Research2015,25,8:323
6A Robust CRISPR/Cas9 System for Convenient, High-Efficiency Multiplex Genome Editing in Monocot and Dicot Plants显示文摘CRISPR/Cas9 染色体指向系统被用于许多种类。然而,为植物报导的 mostCRISPR/Cas9 系统能仅仅修改一个或一些指向地点。这里,我们报导一个柔韧的 CRISPR/Cas9 向量系统,利用植物 codon 优化了 Cas9 基因,为方便、高效率的复合染色体在 monocot 和 dicot 植物编辑。我们设计了基于 PCR 的过程很快产生多重 sgRNA 表达式盒子,它能在一个轮由金门结扎或吉布森汇编克隆被装配进二进制 CRISPR/Cas9 向量。与这个系统,我们与 85.4% 变化评估的一般水准在米饭编辑了 46 个目标地点,主要在 biallelic 和同型结合的地位。我们推想在米饭的大约 16% 同型结合的变化通过相应基于再结合的修理跟随的非相应的加入结束的机制被产生。我们也获得了一致 biallelic,在 Arabidopsis T 1 植物的异质接合、同型结合、妄想的变化。在米饭和 Arabidopsis 的指向的变化是可继承的。我们在 T 0 米饭和 T 1 由同时的指向的 Arabidopsis 植物多重(多达八) 一个基因家庭,在一条 biosynthetic 小径的多重基因,或在单个基因的多重地点的成员。这个系统为为基本研究和基因改进在植物学习多重基因和基因家庭的功能提供了一个万用的工具箱。Xingliang Ma Qunyu Zhang Qinlong Zhu Wei Liu Yan Chen Rong Qiu Bin Wang Zhongfang Yang Heying Li Yuru Lin Yongyao Xie Rongxin Shen Shuifu Chen Zhi Wang Yuanling Chen Jingxin Guo Letian Chen Xiucai Zhao Zhicheng Dong Yao-Guang Liu 2015Molecular Plant2015,8,8:272
7Prevalence of Nontraumatic Osteonecrosis of the Femoral Head and its Associated Risk Factors in the Chinese Population: Results from a Nationally Representative Survey显示文摘De-Wei Zhao Mang Yu Kai Hu Wei Wang Lei Yang Ben-Jie Wang Xiao-Hong Gao Yong-Ming Guo Yong-Qing Xu Yu-Shan Wei Si-Miao Tian Fan Yang Nan Wang Shi-Bo Huang Hui Xie Xiao-Wei Wei Hai-Shen Jiang Yu-Qiang Zang Jun Ai Yuan-Liang Chen Guang-Hua Lei Yu-Jin Li Geng Tia Zong-Sheng Li Yong Cao Li Ma 2015Chinese Medical Journal2015,,21:151
8Stable classi?cation with limited sample: transferring a 30-m resolution sample set collected in 2015 to mapping 10-m resolution global land cover in 2017显示文摘As the world strives to reduce the impact of population growth, urbanization, agricultural expansion, and climate change on food security, energy and water shortage, resource over-exploration, biodiversity loss, environmental pollution, and ultimately human health, timely and higher resolution land cover information is urgently needed to achieve the sustainable development goals of the United Nations.Peng Gong Han Liu Meinan Zhang Congcong Li Jie Wang Huabing Huang Nicholas Clinton Luyan Ji Wenyu Li Yuqi Bai Bin Chen Bing Xu Zhiliang Zhu Cui Yuan Hoi Ping Suen Jing Guo Nan Xu Weijia Li Yuanyuan Zhao Jun Yang Chaoqing Yu Xi Wang Haohuan Fu Le Yu Iryna Dronova Fengming Hui Xiao Cheng Xueli Shi Fengjin Xiao Qiufeng Liu Lianchun Song 2019Science Bulletin2019,64,6:166
9Identification of a novel coronavirus causing severe pneumonia in human:a descriptive study显示文摘Background:Human infections with zoonotic coronaviruses(CoVs),including severe acute respiratory syndrome(SARS)-CoV and Middle East respiratory syndrome(MERS)-CoV,have raised great public health concern globally.Here,we report a novel batorigin CoV causing severe and fatal pneumonia in humans.Methods:We collected clinical data and bronchoalveolar lavage(BAL)specimens from five patients with severe pneumonia from Wuhan Jinyintan Hospital,Hubei province,China.Nucleic acids of the BAL were extracted and subjected to next-generation sequencing.Virus isolation was carried out,and maximum-likelihood phylogenetic trees were constructed.Results:Five patients hospitalized from December 18 to December 29,2019 presented with fever,cough,and dyspnea accompanied by complications of acute respiratory distress syndrome.Chest radiography revealed diffuse opacities and consolidation.One of these patients died.Sequence results revealed the presence of a previously unknownβ-CoV strain in all five patients,with 99.8%to 99.9%nucleotide identities among the isolates.These isolates showed 79.0%nucleotide identity with the sequence of SARS-CoV(GenBank NC_004718)and 51.8%identity with the sequence of MERS-CoV(GenBank NC_019843).The virus is phylogenetically closest to a bat SARS-like CoV(SL-ZC45,GenBank MG772933)with 87.6%to 87.7%nucleotide identity,but is in a separate clade.Moreover,these viruses have a single intact open reading frame gene 8,as a further indicator of bat-origin CoVs.However,the amino acid sequence of the tentative receptor-binding domain resembles that of SARS-CoV,indicating that these viruses might use the same receptor.Conclusion:A novel bat-borne CoV was identified that is associated with severe and fatal respiratory disease in humans.Li-Li Ren Ye-Ming Wang Zhi-Qiang Wu Zi-Chun Xiang Li Guo Teng Xu Yong-Zhong Jiang Yan Xiong Yong-Jun Li Xing-Wang Li Hui Li Guo-Hui Fan Xiao-Ying Gu Yan Xiao Hong Gao Jiu-Yang Xu Fan Yang Xin-Ming Wang Chao Wu Lan Chen Yi-Wei Liu Bo Liu Jian Yang Xiao-Rui Wang Jie Dong Li Li Chao-Lin Huang Jian-Ping Zhao Yi Hu Zhen-Shun Cheng Un-Lin Liu Zhao-Hui Qian Chuan Qin Qi Jin Bin Cao Jian-Wei Wang 2020Chinese Medical Journal2020,,9:99
10The origin, transmission and clinical therapies on coronavirus disease 2019(COVID-19) outbreak——an update on the status显示文摘An acute respiratory disease,caused by a novel coronavirus(SARS-CoV-2,previously known as 2019-nCoV),the coronavirus disease 2019(COVID-19)has spread throughout China and received worldwide attention.On 30 January 2020,World Health Organization(WHO)officially declared the COVID-19 epidemic as a public health emergency of international concern.The emergence of SARS-CoV-2,since the severe acute respiratory syndrome coronavirus(SARSCoV)in 2002 and Middle East respiratory syndrome coronavirus(MERS-CoV)in 2012,marked the third introduction of a highly pathogenic and large-scale epidemic coronavirus into the human population in the twenty-first century.As of 1 March 2020,a total of 87,137 confirmed cases globally,79,968 confirmed in China and 7169 outside of China,with 2977 deaths(3.4%)had been reported by WHO.Meanwhile,several independent research groups have identified that SARS-CoV-2 belongs toβ-coronavirus,with highly identical genome to bat coronavirus,pointing to bat as the natural host.The novel coronavirus uses the same receptor,angiotensin-converting enzyme 2(ACE2)as that for SARS-CoV,and mainly spreads through the respiratory tract.Importantly,increasingly evidence showed sustained human-tohuman transmission,along with many exported cases across the globe.The clinical symptoms of COVID-19 patients include fever,cough,fatigue and a small population of patients appeared gastrointestinal infection symptoms.The elderly and people with underlying diseases are susceptible to infection and prone to serious outcomes,which may be associated with acute respiratory distress syndrome(ARDS)and cytokine storm.Currently,there are few specific antiviral strategies,but several potent candidates of antivirals and repurposed drugs are under urgent investigation.In this review,we summarized the latest research progress of the epidemiology,pathogenesis,and clinical characteristics of COVID-19,and discussed the current treatment and scientific advancements to combat the epidemic novel coronavirus.Yan-Rong Guo Qing-Dong Cao Zhong-Si Hong Yuan-Yang Tan Shou-Deng Chen Hong-Jun Jin Kai-Sen Tan De-Yun Wang Yan Yan 2020Military Medical Research2020,7,1:123
11Towards 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
12Efficient generation of hepatocyte-like cells from human induced pluripotent stem cells显示文摘人的导致的 pluripotent 茎(iPS ) 房间类似于胚胎的茎(ES ) 房间,和罐头强烈地增殖并且区分进许多房间类型。然而,人的 iPS 房间的肝的区别还没被报导了。在这份报告,人的 iPS 房间被导致由一个逐步的协议区分进肝的房间。肝房间标记的表达式和人的 iPS 的肝相关的函数导出房间的房间被监视并且与区分的人的 ES 房间和主要人的 hepatocytes 的相比。在白天 7 点的约 60% 区分的人的 iPS 房间表示了肝的标记 alpha fetoprotein 和白长袍的。在白天 21 点的区分的房间包括白朊 Asecretion,肝糖合成,脲生产和可诱导的细胞色素 P450 活动展出了肝房间功能。肝的标记的表示和 iPS 的肝相关的功能导出房间的肝的房间比得上人的 ES 导出房间的肝的房间的。这些结果证明人的 iPS 房间,类似于人的 ES 房间,能高效地被导致区分房间进象 hepatocyte 一样。Zhihua Song Jun Cai Yanxia Liu Dongxin Zhao Jun Yong Shuguang Duo Xijun Song Yushan Guo Yang Zhao Han Qin Xiaolei Yin Chen Wu Jie Che Shichun Lu Mingxiao Ding Hongkui Deng 2009Cell Research2009,19,11:63
13RNA-seq analysis of prostate cancer in the Chinese population identifies recurrent gene fusions, cancer-associated long noncoding RNAs and aberrant alternative splicings显示文摘在有前列腺癌症的不同赛跑的病人之中有显著不同;然而,位于这差别下面的机制仍然保持不清楚。这里,我们在场 transcriptome 的一处全面风景用 RNA-seq,越过关于基因熔化的前列腺癌症 transcriptomes 的揭示巨大的差异,长 noncoding RNA (长 ncRNA ) ,其他的拼接和体的变化从中国人口 14 主要前列腺癌症和他们的配对的正常对应物介绍。14 个肿瘤(21.4%) 中的三个在中国病人怀有 TMPRSS2 尔格熔化,和这熔化的低流行进一步在一个另外的肿瘤集合(10/54=18.5%) 被证实。尤其是,二新奇基因熔化, CTAGE5-KHDRBS3 (20/54=37%) 和 USP9Y-TTTY15 (19/54=35.2%) ,在我们的耐心的队经常发生了。介绍的进一步系统的 transcriptional 识别了是在肿瘤表示的差别的众多的长 ncRNAs。在长 ncRNA 和基因的表示之间的关联的分析建议长 ncRNAs 可以在 transcriptional 规定以外有功能。这研究在中国人口产出新卓见进前列腺癌症的致病。Shancheng Ren Zhiyu Peng Jian-Hua Mao Yongwei Yu Changjun Yin Xin Gao Zilian Cui Jibin Zhang Kang Yi Weidong Xu Chao Chen Fubo Wang Xinwu Guo Ji Lu Jun Yang Min Wei Zhijian Tian Yinghui Guan Liang Tang Chuanliang Xu Linhui Wang Xu Gao Wei Tian Jian Wang Huanming Yang Jun Wang Yinghao Sun 2012Cell Research2012,22,5:66
14Adjuvant transcatheter arterial chemoembolization after curative resection for hepatocellular carcinoma patients with solitary tumor and microvascular invasion: a randomized clinical trial of efficacy and safety显示文摘Background:The optimal strategy for adjuvant therapy after curative resection for hepatocellular carcinoma(HCC)patients with solitary tumor and microvascular invasion(MVI)is controversial.This trial evaluated the efficacy and safety of adjuvant transcatheter arterial chemoembolization(TACE)after hepatectomy versus hepatectomy alone in HCC patients with a solitary tumor≥5 cm and MVI.Methods:In this randomized,open-labeled,phase III trial,HCC patients with a solitary tumor≥5 cm and MVI were randomly assigned(1:1)to receive either 1-2 cycles of adjuvant TACE after hepatectomy(Hepatectomy-TACE)or hepatectomy alone(Hepatectomy Alone).The primary endpoint was disease-free survival(DFS);the secondary end-points included overall survival(OS)and adverse events.Results:Between June 1,2009,and December 31,2012,250 patients were enrolled and randomly assigned to the Hepatectomy-TACE group(n=125)or the Hepatectomy Alone group(n=125).Clinicopathological characteristics were balanced between the two groups.The median follow-up time from randomization was 37.5 months[interquartile range 18.3-48.2 months].The median DFS was significantly longer in the Hepatectomy-TACE group than in the Hepatectomy Alone group[17.45 months(95%confidence interval[CI]11.99-29.14)vs.9.27 months(95%CI 6.05-13.70),hazard ratio[HR]=0.70(95%CI 0.52-0.95),P=0.020],respectively.The median OS was also significantly longer in the Hepatectomy-TACE group than in the Hepatectomy Alone group[44.29 months(95%CI 25.99-62.58)vs.22.37 months(95%CI 10.84-33.91),HR=0.68(95%CI 0.48-0.97),P=0.029].Treatment-related adverse events were more frequently observed in the Hepatectomy-TACE group,although these were generally mild and manageable.The most common grade 3 or 4 adverse events in both groups were neutropenia and liver dysfunction.Conclusion:Hepatectomy followed by adjuvant TACE is an appropriate option after radical resection in HCC patients with solitary tumor≥5 cm and MVI,with acceptable toxicity.Wei Wei Pei-En Jian Shao-Hua Li Zhi-Xing Guo Yong-Fa Zhang Yi-Hong Ling Xiao-Jun Lin Li Xu Ming Shi Lie Zheng Min-Shan Chen Rong-Ping Guo 2018Cancer Communications2018,38,1:62
15Heavy metal pollution of soils and vegetables in the midstream and downstream of the Xiangjiang River, Hunan Province显示文摘219 农业土壤和 48 件蔬菜样品的一个总数在湖南省 Xiangjiang 河(Hengyang 长沙节) 从中流并且下游地被收集。累积特征。WANG Lixia GUO Zhaohui XIAO Xiyuan CHEN Tongbin LIAO Xiaoyong SONG Jie WU Bin 2008Journal of Geographical Sciences2008,18,3:56
16Mapping wetland changes in China between 1978 and 2008显示文摘Four wetland maps for all China have been produced,based on Landsat and CBERS-02B remote sensing data between 1978 and 2008 (1978,1990,2000 and 2008).These maps were mainly developed by manual interpretation and validated by substantial field investigation in 2009.Based on these maps,we analyzed the 2008 wetland distribution in China and discussed wetland changes and their drivers over the past 30 years.(i) There were about 324097 km 2 of wetlands in 2008,for which inland marshes or swamps were the most common wetland type (35%),with lakes (26%) second.Most of the wetlands were in Heilongjiang,Inner Mongolia,Qinghai and Tibet,occupying about 55% of the national wetland area.(ii) From 1978 to 2008,China's wetland area continually and significantly decreased,by about 33% based on changes in the wetland map.This was in sharp contrast to the increase in artificial wetlands,which increased by about 122%.Inland marshes accounted for the main loss of total wetlands from 1978 to 2000.From 2000 through 2008,riverine and lacustrine wetlands constituted the main wetland loss.Fortunately however,the rate of wetland loss decreased from 5523 to 831 km 2 /a.(iii) The change ratio of lost natural wetlands (including inland and coastal wetlands) to non-wetlands has decreased slightly over the past 30 years.From 1978 to 1990,nearly all natural wetlands (98%) lost were transformed into non-wetlands.However,the ratio declined to 86% from 1990 to 2000,and to 77% from 2000 to 2008.(iv) All Chinese provinces were divided into three groups according to patterns of wetland changes,which could relate to the driving forces of such changes.Tibet was completely different from other provinces,as it was one representative example in which there was a net wetland increase,because of global warming and decreased human activity since 1990.Increased economic development caused considerable wetland loss in most eastern provinces,and artificial wetlands increased.NIU ZhenGuo ZHANG HaiYing WANG XianWei YAO WenBo ZHOU DeMin ZHAO KuiYi ZHAO Hui LI NaNa HUANG HuaBing LI CongCong YANG Jun LIU CaiXia LIU Shuang WANG Lin LI Zhan YANG ZhenZhong QIAO Fei ZHENG YaoMin CHEN YanLei SHENG YongWei GAO XiaoHong ZHU WeiHong WANG WenQing WANG Hong WENG YongLing ZHUANG DaFang LIU JiYuan LUO ZhiCai CHENG Xiao GUO ZiQi GONG Peng 2012Chinese Science Bulletin2012,57,22:51
17High-dose Iodized Oil Transcatheter Arterial Chemoembolization For Patients with Large Hepatocellular Carcinoma显示文摘AIM:To conduct a randomized trial to evaluate the role ofusing high-dose iodized oil transcatheter arterialchemosmbolization(TACE)in the treatment of largehepatocellular carcinoma(HCC).METHODS:From January 1993 to June 1998,473 patientswith unresectable hepatocellular carcinoma ware divided intotwo groups:216 patients in group A received more than20mL iodized oil during the first TACE treatment;257patients in group B received 5-15mL iodized oil in the sameway.The Child's classification and ICG-R15 for evaluatingthe liver function of the patients ware done before thetreatment.During the TACE procedure the catheters wasinserted into the target artery selectively and the tumorvessels ware demonstrated with contrast medium in thehepatic angiography.The anticancar drugs mixed withiodized oil(Lipiodol)ware Epirubicin and Mitomycin.Ingroup A,112 cases received 20-29mL Lipiodol in the firstprocedure,85 cases 30-39mL,19 cases more than 40mL.The largest dose was 53 mL and the average dose was28.3mL.In group B,119 cases received 5-10mL Lipiodol,138 cases received 11-15mL,and the average dose was11.8mL.RESULTS:High-dose Lipiodol chemoembolization causedtolerable side effects and a little hurt to the liver function inthe patients with Child grade A or ICG-R15<20.But thepatients with child grade B or ICG-R15>20 had higher risk ofliver failure after high-dose TACE.More type Ⅱ and type Ⅱlipiodol accumulations in CT scan after 4 weeks of TACEware seen in the group A patients than those in the group Bpatients(P<0.01).The resection rate and complete tumornecrosis rate in group A ware higher than those of group B(P<0.05).The 1-,2-,3-year survival rates of group Apatients with Child grade A ware 79.2%,51.8% and 34.9%,respectively,better then those of group B(P<0.001).CONCLUSION:High-dose Lipiodol can result in morecomplete tumor necrosis by blocking both arteries and small portal veins of the tumor.High-dose TACE for treatment oflarge and hypervascular hepatocallular carcinoma ispractically acceptable with the better effect than the routinedose.For the patients with large and hypervascular tumor ofChild grade A liver function or ICG-R15 less than 20%,oilychemoembolization with 20-40mL Lipiodol is recommended.Min-Shan Chen Jin-Qing Li Ya-Qi Zhang Yun-Fei Yuan Yong-Ping Guo Xiao-Jun Lin Guo-Hui Lim Department of Hepatobiliary Cancer Center of Sun Yet-sen University of Medical Sciences,Guangzhou 510060,China Li-Xia Lu Wei-Zhang Zhang Department of Radiology Cancer Center of Sun Yet-sen University of Medical Sciences,Guangzhou 510060,China 2002World Journal of Gastroenterology2002,8,1:58
18Geochronologic Constraints on the Magmatic Underplating of the Gangdisê Belt in the India-Eurasia Collision: Evidence of SHRIMP II Zircon U-Pb Dating显示文摘丰富的小 mafic 侵入发生沿着 theGangdise magmatic 与 granitoids 联系了带。除了在 granitoid plutons 以内的许多分离斑粝岩身体, agabbro 辉岩地区沿着 Gangdise 带的南部的边缘发生到 theYarlung Zangbo 缝术的北方。mafic 侵入地区空间地对应于一个强壮的空中地磁学的异例,它扩大约 1400 km。mafic 侵入由斑粝岩和粗玄岩的间歇地分布式的小身体和堤组成与辉岩,橄榄石辉岩, pegmatitic 辉岩和角闪岩积累。许多证据显示 Gangdise gabbro-pyroxeniteassemblage 是最可能的结果在导出披风的岩浆的 plating 下面。详细的地调查和 mafic 岩石的系统的采样在六个地点被进行,沿着 mafic intrusive 地区的 theLhasa-Xigaze 片断,并且被标明日期的锆石虾 II U-Pb 跟随。除了二岁,样品以前出版了(47.0 +- 1 个妈和 48.9 +- 1.1 妈) ,四斑粝岩取样的留下的同位素年龄是 51.6 +- 1.3Ma, 52.5 +- 3.0 妈, 50.2 +-第 4.2Maa 49.9 +- 1.1Ma。年龄(47-52.5 妈) 提供的这些的范围在 Gangdise 下面在 plating 下面岩浆预定的 Eocene 上的 geochronologic 限制在 ca 系上带子。50 妈。这在 plating 下面 eventpost 过时到 1500 万年的印度欧亚大陆大陆碰撞的开始并且与岩浆混合的一个过程是同时期的。虾 II U-Pb 同位素分析也从一些锆石谷物发现几老年,主要在 479-526 妈的一个范围(加权的平均年龄 503+- 10 妈) ,当时,因此关于先存在的下地壳产出信息在 maficmagma 的 plating 下面发生。在 plating 下面的岩浆在印度欧亚大陆的碰撞期间是为外壳的生长的主要机制之一,这被相信,可能相应及时到 the14-16 的形成 km 厚“外壳披风过渡地区”由 Vp = 6.85-6.9 km/s 描绘了。DONG Guochen MO Xuanxue ZHAO Zhidan GUO Tieying WANG Liangliang CHEN Tao 2005Acta Geologica Sinica(English Edition)2005,79,6:50
19PREVALENCE AND RISK FACTORS OF PERIPHERAL ARTERIAL DISEASE IN DIABETIC PATIENTS OVER 50 YEARS OLD IN CHINA显示文摘Objective To investigate the prevalence of peripheral arterial disease (PAD) in China type 2 diabetic patients and to demonstrate the relationships between putative risk factors and PAD. Methods In total 1 397 type 2 diabetic patients aged 50 years and older were enrolled and determined ankle-brachial index (ABI) and brachial-ankle pulse wave velocity (baPWV) in 15 Class III Grade A hospitals in 7 major cities of China. Results Mean patient age was 63.7±8.2 years and mean duration of diabetes mellitus was 9.39±7.4 years. Two hundreds and seventy-two (19.47%) patients were diagnosed as PAD by ABI <0.9, 122 (18.37%) in male and 150 (20.46%) in female. PAD patients had a significantly longer duration of diabetes mellitus, higher hemoglobin Alc, and a significantly lower mean body mass index than non-PAD ones. Aging, smoking, and systolic blood pressure were found to be positively related with the prevalence of PAD. In terms of lipid profiles, no variable was found to relate with PAD. Notably, baPWV showed as the same significant guiding index for PAD, almost matched with ABI. Conclusions PAD is a common complication in China type 2 diabetic patients. Therefore, PAD screening and treatment should be emphasized for diabetic patients with high risk factors.Heng Guan Yong-jun Li Zhang-rong XU Guang-wei Li Xiao-hui Guo Zhi-min Liu Da-jin Zou Hui-li Xing Wei Liu Zheng-yan Sheng Hao-ming Tian Da-long Zhu De-min YU Wei-te Zhuang Lu-lu Chen Jian-ping Weng 2007Chinese Medical Sciences Journal2007,22,2:41
20Berberine ameliorates renal injury in streptozotocin-induced diabetic rats by suppression of both oxidative stress and aldose reductase显示文摘背景 Berberine 是 Coptidis 根茎(CR ) 和外皮 phellodendri 的主要成分之一,在这研究,我们与糖尿病的 nephropathy (DN ) 在老鼠在肾的功能和它的可能的机制上调查了 berberine 的有益的效果。方法男 Wistar 老鼠被划分成三个组:正常,糖尿病的模型,和 berberine 处理组。在糖尿病的模型和 berberine 治疗组的老鼠被 intraperitonal 注射与 streptozotocin (STZ ) 导致到糖尿病。Glomerular 区域, glomerular 体积, fasting 血葡萄糖(FBG ) ,血脲氮(甜面包) ,浆液 creatinine (Cr ) 和为 24 个小时(UP24h ) 的尿蛋白质用商业地可得到的工具包被测量。同时, superoxide dismutase (草皮) 的活动,在浆液的 malondialdehyde (MDA ) 的内容, aldose reductase (AR ) 的活动和在肾的 AR mRNA 和蛋白质的表示被不同方法检测。结果显示出的结果 berberine 的那个口头的政府(200mg 牲汥瑡摥 ? ぐ??LIU Wei-hua HEI Zi-qing NIE Hong TANG Fu-tian HUANG He-qing LI Xue-juan DENG Yan-hui CHEN Shao-rui GUO Fen-fen HUANG Wen-ge CHEN Feng-ying LIU Pei-qing 2008Chinese Medical Journal2008,,8:41
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