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| 1 | Current pattern of Chinese dialysis units: a cohort study in a representative sample of units显示文摘 | ZHOU Qiu-gen JIANG Jian-ping WU Sheng-jie TIAN Jian-wei CHEN Jiang-hua YU Xue-qing CHEN Ping-yan MEI Chang-lin XIONG Fei SHI Wei ZHOU Wei LIU Xu-sheng SUN Shi-ren XIE Di LIU Jun XU Xin HOU Fan-fan | 2012 | Chinese Medical Journal2012,,19: | 69 |
| 2 | SIMS U-Pb zircon age of a tuff layer in the Meishucun section, Yunnan, southwest China: Constraint on the age of the Precambrian-Cambrian boundary显示文摘Determination of the age of the Precambrian-Cambrian boundary is critical in understanding early evolution of life on Earth. SIMS U-Pb zircon analyses of the Bed 5 tuff layer of the Meishucun section were carried out closely following the guidance of cathodoluminescence images, and the majority of analyses were conducted on the oscillatory zircon grains. Thirteen measurements yield a highly reliable Concordia U-Pb age of 536.7 ± 3.9 Ma for the Bed 5 horizon. A grand mean of 206Pb/238U age of 535.2± 1.7 Ma (MSWD = 0.53) is calculated based on 13 concordant SIMS measurements of this study and 4 nano-SIMS measurements of Sawaki et al., which is the best estimate of the deposition age of the tuff layer within Bed 5 in the Meishucun section. This age has provided a robust age constraint on the significant Precambrian-Cambrian boundary strata in southern China, which independently suggested the placement of the Precambrian-Cambrian boundary at the bottom of the Xiaowaitoushan Member (Marker A). | RiXiang Zhu XianHua Li XianGuang Hou YongXin Pan Fei Wang ChengLong Deng HuaiYu He | 2009 | Science China Earth Sciences2009,52,9: | 24 |
| 3 | Pre-treatment with IL-1β enhances the efficacy of MSC transplantation in DSS-induced colitis显示文摘间充质的干细胞(MSC ) 试验性地被使用了对待煽动性的混乱,部分由于他们的抑制免疫力的性质。尽管 interleukin-1β(IL-1β) 是最重要的煽动性的调停人之一,成长证据显示那 IL-1β发信号得到 MSC 的抑制免疫力的性质。然而,它仍然保持不清楚怎么 IL-1β发信号完成这项活动。这里,我们集中于 IL-1β 的治疗学的功效;在葡聚糖硫酸盐钠(决策支持系统) 的告知的 MSC 劝诱了大肠炎模型,除了加重的机制。我们首先发现了那 IL-1β没有在 vitro 的任何看得见的显型变化,告知的 MSC 显著地稀释了导致决策支持系统的鼠科的大肠炎的发展。而且, IL-1β告知的 MSC 通过提高 cyclooxygenase-2 (COX-2 ) 在怒气和 mesenteric 淋巴节点(MLN ) 调制了有免疫力的房间的平衡, IL-6 和 IL-8 表示并且影响腹巨噬细胞的极化。重要地, IL-1β告知的 MSC 拥有了一个提高的能力经由 chemokine 受体类型 4 的 upregulation (CXCR4 ) 移居到内脏的煽动性的地点表示。在摘要, IL-1β告知的 MSC 在对待导致决策支持系统的大肠炎改进了功效,它部分至少取决于他们的增加的抑制免疫力的能力和提高的迁居能力。 | Hongye Fan Guangfeng Zhao Liu Liu Fei Liu Wei Gong Xianqin Liu Liu Yang Jianjun Wang Yayi Hou | 2012 | Cellular & Molecular Immunology2012,9,6: | 21 |
| 4 | A landscape shape index-based sampling approach for land cover accuracy assessment显示文摘Spatial sampling design is one of the key steps in land cover accuracy assessment,and many traditional sampling approaches may not achieve credible spatial sampling due to the high spatial heterogeneity of land cover.This paper characterizes the spatial heterogeneity with three-level LSIs and determines the subsequent sample sizes and their spatial distributions.The three-level LSIs are rLSI in a region,cLSI for each land cover class and uLSI in each geographic sampling unit in the region.The rLSIs are used to derive appropriate sample sizes in the target regions.The cLSIs are used to assure that larger sample numbers are allocated to land cover classes with higher spatial heterogeneity.The uLSIs provide useful measures for selecting optimal geographic units in which sample sites will be located.This LSI-based sampling approach can derive the sample sizes and determine their distributions in an adaptive way according to the spatial heterogeneity.An experimental case study further demonstrates that the LSI-based sampling approach obtains more appropriate sample sizes for each region,sufficient sample numbers for rare classes,and optimal sample distributions in the geographical space. | CHEN Fei CHEN Jun WU Hao HOU DongYang ZHANG WeiWei ZHANG Jun ZHOU XiaoGuang CHEN LiJun | 2016 | Science China(Information Sciences)2016,59,12: | 17 |
| 5 | Distribution and geological significance of 17α(H)-diahopanes from different hydrocarbon source rocks of Yanchang Formation in Ordos Basin显示文摘Based on GC-MS testing data of many saturated hydrocarbon samples, 17α(H)-C30 diahopanes (C30*) are extensively distributed in the lacustrine hydrocarbon source rocks of the Yanchang Formation in Ordos Basin, but show remarkable differences in relative abundance among various source rocks. Generally, Chang 7 high-quality source rock (oil shale) developed in deep lake anoxic environment shows lower C30* content, whereas Chang 6-9 dark mudstone developed in shallow to semi-deep lake, sub-oxidizing environment shows relatively high to high C30* value. Particularly, Chang 7 and Chang 9 black mudstones in Zhidan region in the northeast of the lake basin show extremely high C30* value. A comparative analysis was made based on lithology, organic types and various geochemical parameters indicative of redox environment, and the results indicate that environmental factors such as redox settings and lithology are key factors that control the C30* relative abundance, while organic types and maturity may be minor factors. High to extremely high C30* values are indicative of sub-oxidizing environment of fresh-brackish water and shallow to semi-deep lake. Therefore, research on C30* relative content and distribution in lacustrine hydrocarbon source rocks in the Yanchang Formation, especially on the difference in C30* between Chang 7 high-quality source rocks (oil shale) and Chang 6-91 source rocks (dark mudstone), will provide an important approach for classification of Mesozoic lacustrine crudes and detailed oil-source correlation in the basin. | ZHANG WenZheng YANG Hua HOU LiHui LIU Fei | 2009 | Science China Earth Sciences2009,52,7: | 16 |
| 6 | Analysis of characteristics and mechanism of current system on the west coast of Guangdong of China in summer显示文摘On the basis of data of drifting bottles’ tracks and the current measured in anchored stations, as well as temperature and salinityobserved in cruise investigations and coastal stations, ADCP current data and AVHRR surface sea temperature (SST) data on thewestern coast of Guangdong, synthetic results of analysis showed that the coastal currents in the west of the mouth of the ZhujiangRiver were mainly westward in summer, which constituted the north branch of cyclonic gyre in the east of the Qiongzhou Straits. Partof its water flowed westward into the Beibu Gulf through the Qiongzhou Straits. The coastal current pattern was not identical with thetraditional current system which flowed westward in the Qiongzhou Straits in winter and eastward in summer. The summertime’ scoastal current was always westward, maybe temporarily turning northeast only when the southwest wind was strong. The importantcharacteristics of coastal current on the western coast of Guangdong, in the Qiongzhou Straits and in the north of the Beibu Gulf wereanalyzed and their mechanisms also were explained. | BAO Xianwen HOU Yijun CHEN Changshen CHEN Fei SHI Maochong | 2005 | Acta Oceanologica Sinica2005,24,4: | 16 |
| 7 | Liver Enzymes Concentrations Are Closely Related to Pre-diabetes:Findings of the Shanghai Diabetes Study Ⅱ (SHDS Ⅱ)显示文摘Objective To investigate the relationship of liver enzymes with hyperglycemia in a large population in Shanghai and identify the association between liver enzymes and insulin resistance.Methods A total of 3 756 participants were enrolled.Each participant underwent an oral glucose tolerance test and completed a questionnaire.Anthropometric indices were recorded and serum samples were collected for measurement.Results Liver enzymes concentrations were independently associated with i-IGT,IFG+IGT,and diabetes.With the increase of ALT and GGT concentrations,ORs for i-IGT,IFG+IGT,and diabetes increased gradually.By comparing patients in the highest quartile of GGT concentrations or ALT concentrations with those in the lowest quartile (Q1),ORs for i-IGT,IFG+IGT,or diabetes was significant after adjustment.Both ALT and GGT concentrations were linearly correlated with HOMA-IR and independently associated with HOMA-IR [ALT OR (95% CI):2.56 (1.51-4.34) P=0.00;GGT OR (95% CI):2.66 (1.53-4.65) P=0.00].Conclusion Serum ALT and GGT concentrations were closely related to pre-diabetes and diabetes in the Shanghai population and positively associated with insulin resistance. | GAO Fei PAN Jie Min HOU Xu Hong FANG Qi Chen LU Hui Juan TANG Jun Ling GU Hui Lin PAN Zhi Jian YAO You Hua SHEN Wei Zhen JIA Wei Ping | 2012 | Biomedical and Environmental Sciences2012,25,1: | 15 |
| 8 | Effects of warming and clipping on plant and soil properties of an alpine meadow in the Qinghai-Tibetan Plateau, China显示文摘Climate warming and livestock grazing are known to have great influences on alpine ecosystems like those of the Qinghai-Tibetan Plateau(QTP) in China. However, it is lacking of studies on the effects of warming and grazing on plant and soil properties in these alpine ecosystems. In this study, we reported the related research from manipulative experiment in 2010–2012 in the QTP. The aim of this study was to investigate the individual and combined effects of warming and clipping on plant and soil properties in the alpine meadow ecosystem. Infrared radiators were used to simulate climate warming starting in July 2010, while clipping was performed once in October 2011 to simulate the local livestock grazing. The experiment was designed as a randomized block consisting of five replications and four treatments: control(CK), warming(W), clipping(C) and warming+clipping combination(WC). The plant and soil properties were investigated in the growing season of the alpine meadow in 2012. The results showed that W and WC treatments significantly decreased relative humidity at 20-cm height above ground as well as significantly increases air temperature at the same height, surface temperature, and soil temperature at the depth of 0–30 cm. However, the C treatment did not significantly decrease soil moisture and soil temperature at the depth of 0–60 cm. Relative to CK, vegetation height and species number increased significantly in W and WC treatment, respectively, while vegetation aboveground biomass decreased significantly in C treatment in the early growing season. However, vegetation cover, species diversity, belowground biomass and soil properties at the depth of 0–30 cm did not differ significantly in W, C and WC treatments. Soil moisture increased at the depth of 40–100 cm in W and WC treatments, while belowground biomass, soil activated carbon, organic carbon and total nitrogen increased in the 30–50 cm soil layer in W, C and WC treatments. Although the initial responses of plant and soil properties to experimental warming and clipping were slow and weak, the drought induced by the downward shift of soil moisture in the upper soil layers may induce plant belowground biomass to transfer to the deeper soil layers. This movement would modify the distributions of soil activated carbon, organic carbon and total nitrogen. However, long-term data collection is needed to further explain this interesting phenomenon. | Man Hou XU Fei PENG Quan Gang YOU Jian GUO Xia Fei TIAN Min LIU Xian XUE | 2015 | Journal of Arid Land2015,7,2: | 14 |
| 9 | Seroepidemiological Investigation of Lyme Disease and Human Granulocytic Anaplasmosis among People Living in Forest Areas of Eight Provinces in China显示文摘Objective Lyme disease and Human granulocytic anaplasmosis are tick‐borne diseases caused by Borrelia burgdorferi and Anaplasma phagocytophilum respectively. We have investigated infection and co-infection of the two diseases in the population of forest areas of eight provinces in China by measuring seroprevalence of antibodies against B. burgdorferi and A. phagocytophilum. Methods Forest areas in 8 provinces were chosen for investigation using whole sampling and questionnaire survey methods. 3 669 serum samples from people in the forest areas were tested for the presence of antibodies by indirect immunofluorescent assay (IFA). Results Seroprevalence against B. burgdorferi was 3% to 15% and against A. phagocytophilum was 2% to 18% in the study sites in the 8 provinces in China. We also found co-infection of B. burgdorferi and A. phagocytophilum in 7 of the 8 provinces (the exception being the Miyun area in Beijing). The seroprevalence for both B. burgdorferi and A. phagocytophilum was significantly higher among people exposed to ticks than among people who were not exposed to ticks. Conclusion We conclude that both pathogens are endemic in the forest areas in the eight provinces, but the prevalence of B. burgdorferi and A. phagocytophilum differs between the provinces. | HAO Qin GENG Zhen HOU Xue Xia TIAN Zhen YANG Xiu Jun JIANG Wei Jia SHI Yan ZHAN Zhi Fei LI Guo Hua YU De Shan WANG Hua Yong XU Jian Guo WAN Kang Lin | 2013 | Biomedical and Environmental Sciences2013,26,3: | 13 |
| 10 | Fluid Inclusion and H-O Isotope Geochemistry of the Phapon Gold Deposit, NW Laos: Implications for Fluid Source and Ore Genesis显示文摘The Phapon gold deposit, located in northern Laos, is a unique large-scale gold deposit in Luang Prabang-Loei metallogenic belt. It is hosted in the Lower Permian limestone and controlled by a NE-trending ductile-brittle fault system. There are three types of primary ore including auriferous calcite vein type, disseminated type, and breccia type, and the first two are important in the Phapon gold deposit. Based on fluid inclusion petrography and microthermometry, three types of primary fluid inclusions including type 1 liquid-rich aqueous, type 2 vapor-rich aqueous and type 3 daughter mineralbearing aqueous were identified in hydrothermal calcite grains. The ore-forming fluids are normally homogeneous, as indicated by the widespread type 1 inclusions with identical composition. The coexistence of type 1 and type 2 inclusions, showing similar final homogenization temperature but different compositions, indicate that fluid immiscibility did locally take place in both two types of ores. The results of microthermometry and H-O isotopes geochemistry indicate that there are little differences on ore-fluid geochemistry between the auriferous calcite vein-type and disseminated type ores. The oreforming fluids are characterized by medium-low temperatures(157–268 oC) and low salinity(1.6 wt.%–9.9 wt.% NaCl eq.). It is likely to have a metamorphic-dominant mixed source, which could be associated with dehydration and decarbonisation of Lower Permian limestone and Middle–Upper Triassic sandstones during the dynamic metamorphism. The fluid-wallrock interaction played a major role, and the locally occurred fluid-immiscible processes played a subordinate role in gold precipitation. Combined with the regional and ore deposit geology, and ore-fluid geochemistry, we suggest that the Phapon gold deposit is best considered to be a member of the epizonal orogenic deposit class. | Linnan Guo Shusheng Liu Lin Hou Jieting Wang Meifeng Shi Qiming Zhang Fei Nie Yongfei Yang Zhimin Peng | 2019 | Journal of Earth Science2019,30,1: | 11 |
| 11 | Amelioration of influenza virus-induced reactive oxygen species formation by epigallocatechin gallate derived from green tea显示文摘瞄准: 学习是否 epigallocatechin gallate (EGCG ) ,绿导出茶的多酚,在 vitro 并且在 vivo 的施加的反流行性感冒 A 病毒活动。 | Jia-xin LING Fei WEI Ning LI Jin-lin LI Liang-jun CHEN Yuan-yuan LIU Fan LUO Hai-rong XIONG Wei HOU Zhan-qiu YANG | 2012 | Acta Pharmacologica Sinica2012,33,12: | 11 |
| 12 | Major advances in studies of the physical geography and living environment of China during the past 70 years and future prospects显示文摘The natural environment provides material essentials for human survival and development. The characteristics,processes, regional differentiation and forcing mechanisms of the elements of the natural environment(e.g. geomorphology,climate, hydrology, soil, etc.) are the main objects of research in physical geography. China has a complex natural environment and huge regional differentiation and therefore it provides outstanding reserach opportunities in physical geography. This review summarizes the most important developments and the main contributions of research in the physical geography and human living environment in China during the past 70 years. The major topics addressed are the uplift of the Tibetan Plateau and the evolution of its cryosphere, the development of fluvial systems, the acidification of the vast arid region of the Asian interior, variations in the monsoon and westerly climate systems on multiple timescales, the development of lakes and wetlands, the watershed system model, soil erosion, past human-environment interactions, biogeography, and physical geographic zonality. After briefly introducing international research developments, we review the history of research in physical geography in China, focusing on the major achievements and major academic debates, and finally we summarize the status of current research and the future prospects. We propose that in the context of the national demand for the construction of an ecological civilization, we should make full use of the research findings of physical geography, and determine the patterns and mechanisms of natural environmental processes in order to continue to promote the continued contribution of physical geography to national development strategies, and to further contribute to the theory of physical geography from a global perspective. | Fahu CHEN Bojie FU Jun XIA Duo WU Shaohong WU Yili ZHANG Hang SUN Yu LIU Xiaomin FANG Boqiang QIN Xin LI Tingjun ZHANG Baoyuan LIU Zhibao DONG Shugui HOU Lide TIAN Baiqing XU Guanghui DONG Jingyun ZHENG Wei YANG Xin WANG Zaijun LI Fei Wang Zhenbo HU Jie WANG Jianbao LIU Jianhui CHEN Wei HUANG Juzhi HOU Qiufang CAI Hao LONG Ming JIANG Yaxian HU Xiaoming FENG Xingguo MO Xiaoyan YANG Dongju ZHANG Xiuhong WANG Yunhe YIN Xiaochen LIU | 2019 | Science China Earth Sciences2019,62,11: | 11 |
| 13 | Incidence and risk factors of tuberculosis among the elderly population in China:a prospective cohort study显示文摘Background:China is facing challenges of the shifting presentation of tuberculosis(TB)from younger to elderly due to an ageing population,longer life expectancy and reactivation disease.However,the burden of elderly TB and influence factors are not yet clear.To fill the gap,we generated a cohort study to measure the magnitude of TB incidence and associated factors among the elderly population aged 65 years and above in China.Methods:In this cohort established in 2013 through a prevalence survey conducted in selected sites,a total of 34076 elderlies without TB were enrolled into two-year follow-up.We used both active and passive case findings to find out all TB patients among them.The person-year(PY)incidence rates for both bacteriologically positive TB and active TB were calculated.Cox proportional regression model was performed to test effect of risk factors,and the population attributable fraction(PAF)of each risk factor contributing to incident TB among elderlies was calculated.Results:Over the two-year follow-up period,a total of 215 incident active TB were identified,62 of which were bacteriologically positive.The incidence rates for active TB and bacteriologically positive TB were 481.8 per 100000 PY(95%CI:417.4–546.2 per 100000 PY)and 138.9 per 100000 PY(95%CI:104.4–173.5 per 100000 PY),respectively.Incident cases detected by active case finding were significantly higher(P<0.001).Male,non-Han nationality,previously treated TB,ex/current smoker and body mass index(BMI)<18.5 presented as independent predictors for developing TB disease.For developing bacteriologically positive TB,the biggest contribution was from self-reported ex or current smoker(18.06%).And,for developing active TB,the biggest contribution was from non-Han nationality(35.40%),followed by male(26.80%)and age at 75 years and above(10.85%).Conclusions:Ageing population in China had a high TB incidence rate and risk to develop TB disease,implying that National TB Program(NTP)needs to prioritize for elderly.Active case finding should be applied capture more active TB cases among this particular population,especially for male,non-Han nationality,and those with identified risk factors. | Jun Cheng Yan-Ni Sun Can-You Zhang Yan-Ling Yu Li-Hong Tang Hong Peng Ying Peng Yu-Xia Yao Shuang-Yi Hou Jian-Wei Li Jin-Ming Zhao Lan Xia Lin Xu Yin-Yin Xia Fei Zhao Li-Xia Wang Hui Zhang | 2020 | Infectious Diseases of Poverty2020,9,1: | 10 |
| 14 | Screening beneficial bacteriostatic lactic acid bacteria in the intestine and studies of bacteriostatic substances显示文摘Lactic acid bacteria(LAB)are a representative probiotic.As the dominant flora in the human intestinal tract,LAB can regulate the balance of human intestinal flora and improve host health.The purpose of this study was to isolate and screen LAB that are well suited to the intestinal characteristics of the Chinese population,with excellent probiotics and high antibacterial activity.After 16S ribosomal RNA(rRNA)homology and phylogenetic tree analysis,potential probiotics were tested for their antibacterial activity,resistance to artificial gastrointestinal fluid and drugs,surface hydrophobicity,and safety.Three strains of LAB with acid resistance,bile salt resistance,epithelial cell adhesion,and no multidrug resistance were selected:Lactobacillus salivarius,Leuconostoc lactis,and Lactobacillus paracasei.Analysis of the antibacterial active substances in the three strains and their fermentation broths revealed that the main antibacterial substances of L.lactis were organic acids,whereas those of L.salivarius and L.paracasei were organic acids and bacteriocins with broad-spectrum antibacterial activity.These three strains of probiotic LAB with high antibacterial activity were identified as bacterial resources that could potentially be used to develop probiotic preparations for the prevention and treatment of intestinal diseases caused by intestinal pathogens. | Zhijing LIU Cong XU Ran TIAN Wan WANG Jiage MA Liya GU Fei LIU Zhanmei JIANG Juncai HOU | 2021 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2021,22,7: | 10 |
| 15 | Exploring the driving factors and their mitigation potential in global energy-related CO2 emission显示文摘In order to quantify the contribution of the mitigation strategies,an extended Kaya identity has been proposed in this paper for decomposing the various factors that influence the CO2 emission.To this end,we provided a detailed decomposition of the carbon intensity and energy intensity,which enables the quantification of clean energy development and electrification.The logarithmic mean divisia index(LMDI)has been applied to the historical data to quantify the contributions of the various factors affecting the CO2 emissions.Further,the global energy interconnection(GEI)scenario has been introduced for providing a systematic solution to meet the 2℃goal of the Paris Agreement.By combining LMDI with the scenario analysis,the mitigation potential of the various factors for CO2 emission has been analyzed.Results from the historical data indicate that economic development and population growth contribute the most to the increase in CO2 emissions,whereas improvement in the power generation efficiency predominantly helps in emission reduction.A numerical analysis,performed for obtaining the projected future carbon emissions,suggests that clean energy development and electrification are the top two factors that can decrease CO2 emissions,thus showing their great potential for mitigation in the future.Moreover,the carbon capture and storage technology serves as an important supplementary mitigation method. | Zhiyuan Ma Shining Zhang Fangxin Hou Xin Tan Fengying Zhang Fang Yang Fei Guo | 2020 | Global Energy Interconnection2020,3,5: | 9 |
| 16 | Sediment distribution and provenance since Late Pleistocene in Laizhou Bay,Bohai Sea,China显示文摘There are three transgression-regression events and evolutions of the sedimentary environment by sea level changes since the Pleistocene in the southern section of the Bohai Sea, China. It is obvious that a multi-source fluvial delta sedimentary system may be more dominant in a sedimentary environment. Based on previous research and survey or historical data, we carried out studies on the division of sedimentary units, sedimentary facies analysis and strata division and comparison, which aim to establish the sedimentary stratigraph of Laizhou Bay. We focus on the sedimentary procession of the Laizhou Bay since the early Late Pleistocene. It can be divided into two glacial periods and three interglacial periods, corresponding to two regression and three transgression events in Laizhou Bay since Late Pleistocene. In 124.6-72.0 ka BP, 60.0-24.4 ka BP and 10.2-4.0 ka BP, three times warm-wet periods occurred, respectively corresponding to the Cangzhou transgression, Xianxian transgression, and Huanghua transgression. In 72.0-60.0 ka BP and 24.4-10.2 ka BP, two dry and cold periods, it was the continental sedimentary environment, corresponding to Wurm early glacier and Wurm late glacier. The results show:(1) Sediments have the characteristics of phase and stage under the terrestrial input of the Yellow River and middle-small rivers in the southern section of the Bohai Sea.(2) PI moved towards coastal in Cangzhou transgression strata in early Late Pleistocene. PI moved northward from land in Xianxian transgression strata in the late Pleistocene. PI moved further north in the Huanghua transgression strata in Holocene.(3) During the regressive period, the land source input increased and the estuarine or lagoon sedimentation developed, which manifested as progradational superposition.(4) During the transgressive period, it mainly developed shallow coastal sediment and transitionally formed regressive deposition to the south in delta/tidal flat deposition. | Mao-sheng Gao Fei Guo Xue-yong Huang Guo-hua Hou | 2019 | China Geology2019,2,1: | 7 |
| 17 | SERK Receptor-like Kinases Control Division Patterns of Vascular Precursors and Ground Tissue Stem Cells during Embryo Development in Arabidopsis显示文摘During embryo development, the vascular precursors and ground tissue stem cells divide to renew them-selves and produce the vascular tissue, endodermal cells, and cortical cells. However, the molecular mech-anisms regulating division of these stem cells have remained largely elusive. In this study, we show that loss of function of SOMATIC EMBRYOGENESIS RECEPTOR-UKE KINASE (SERK) genes results in aberrant em-bryo development. Fewer cortical, endodermal, and vascular cells are generated in the embryos of serk1 serk2bak1 triple mutants. WUSCHEL-RELATED HOMBOBOX5 (WOXS) is ectopically expressed in vascular cells of serkl serk2 bak1 embryos. The first transverse division of vascular precursors in mid-globular em-bryos and second asymmetric division of ground tissue stem cells in early-heart embryos are abnormally altered to a longitudinal division. The embryo defects can be partially rescued by constitutively activated mitogen-activated protein kinase (MAPK) kinase kinase YODA (YDA) and MAPK kinase MKK5. Taken together, our results reveal that SERK-mediated signals regulate division patterns of vascular precursors and ground tissue stem cells, likely via the YDA-MKK4/5 cascade, during embryo development. | Huiqiang Li Zeping Cai Xiaojuan Wang Meizhen Li Yanwei Cui Nan Cui Fei Yang Mingsong Zhu Junxiang Zhao Wenbin Du Kai He Jing Yi Frans E.Tax Suiwen Hou Jia Li Xiaoping Gou | 2019 | Molecular Plant2019,12,7: | 7 |
| 18 | Influence of wettability on flow characteristics of water through microtubes and cores显示文摘The flow characteristics of deionized water in hydrophilic and hydrophobic microtubes with diameters of 14.9,5.03 and 2.05 μm are investigated experimentally.The results indicate that the flow characteristics of deionized water in microtubes with diameter of 14.9 μm are in agreement with the classical Hagen-Poiseuille(H-P) equation,but for hydrophilic and hydrophobic microtubes with smaller diameters,the results show significant departure from the prediction of conventional theory,and the discrepancies are influenced by wettability of the microtubes and increase as the Reynolds numbers decrease.Besides,flows of fluid in cores are the macroscopic reflection of flows in countless micron-sized pore throats,the influence of wettability on microscale flow in pore throats will cause the change of seepage characteristic in cores.Therefore,flow experiments of brine through cores with different wettabilities are conducted.The results demonstrate that wettability exerts similar influence on water flows in cores and microtubes. | WANG Fei YUE XiangAn XU ShaoLiang ZHANG LiJuan ZHAO RenBao HOU JiRui | 2009 | Chinese Science Bulletin2009,54,13: | 7 |
| 19 | Triglycerides and ratio of triglycerides to high-density lipoprotein cholesterol are better than liver enzymes to identify insulin resistance in urban middle-aged and older non-obese Chinese without diabetes显示文摘 | Sun Yu Li Wenjuan Hou Xinguo Wang Chuan Li Chengqiao Zhang Xiuping Yang Weifang Ma Zeqiang Wang Weiqing Ning Guang Zheng Huizhen Ma Aixia Song Jun Lin Peng Liang Kai Liu Fuqiang Gong Lei Wang Meijian Xiao Juan Yan Fei Yang Junpeng Wang Lingshu Tian Meng Liu Jidong Zhao Ruxing Zhu Ping Chen Li | 2014 | Chinese Medical Journal2014,,10: | 7 |
| 20 | A chromosome-level reference genome of nonheading Chinese cabbage[Brassica campestris(syn.Brassica rapa)ssp.chinensis]显示文摘Non-heading Chinese cabbage(NHCC)is an important leafy vegetable cultivated worldwide.Here,we report the first high-quality,chromosome-level genome of NHCC001 based on PacBio,Hi-C,and Illumina sequencing data.The assembled NHCC001 genome is 405.33 Mb in size with a contig N50 of 2.83 Mb and a scaffold N50 of 38.13 Mb.Approximately 53%of the assembled genome is composed of repetitive sequences,among which long terminal repeats(LTRs,20.42%of the genome)are the most abundant.Using Hi-C data,97.9%(396.83 Mb)of the sequences were assigned to 10 pseudochromosomes.Genome assessment showed that this B.rapa NHCC001 genome assembly is of better quality than other currently available B.rapa assemblies and that it contains 48,158 protein-coding genes,99.56%of which are annotated in at least one functional database.Comparative genomic analysis confirmed that B.rapa NHCC001 underwent a whole-genome triplication(WGT)event shared with other Brassica species that occurred after the WGD events shared with Arabidopsis.Genes related to ascorbic acid metabolism showed little variation among the three B.rapa subspecies.The numbers of genes involved in glucosinolate biosynthesis and catabolism were higher in NHCC001 than in Chiifu and Z1,due primarily to tandem duplication.The newly assembled genome will provide an important resource for research on B.rapa,especially B.rapa ssp.chinensis. | Ying Li Gao-Feng Liu Li-Ming Ma Tong-Kun Liu Chang-Wei Zhang Dong Xiao Hong-Kun Zheng Fei Chen Xi-Lin Hou | 2020 | Horticulture Research2020,7,1: | 6 |