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| 1 | Distribution pattern of Caragana species under the influence of climate gradient in the Inner Mongolia region, China显示文摘There is a strong climate gradient in the Inner Mongolia region, China, with solar radiation and air temperature increasing but precipitation decreasing gradually from the northeast to the southwest. Sixteen Cara- gana species exist in the Inner Mongolia region. These Caragana species exhibit a distribution pattern across moisture zones and form a geographical replacement series. In order to examine the mechanisms responsible for Caragana species distribution pattern, we selected 12 Caragana species that exhibit a distinct distribution pattern across multiple moisture zones in the Inner Mongolia region, and determined the relationships between the leaf ecological and physiological traits of these Caragana species and the aridity index and solar radiation. Along with the climatic drought gradient and the solar radiation intensification from the northeast to the southwest, leaf eco- logical characteristics of Caragana species changed drastically, i.e. the leaf shape gradually turned from flat into tegular or tubbish; the leaf hair became denser, longer and lighter in color; the leaf area, leaf biomass and specific leaf area(SLA) decreased significantly; the leaf thickness and the ratio of leaf thickness to leaf area increased sig- nificantly; and the leaf chlorophyll content decreased significantly. As the climatic drought stress increased, osmotic potentials of the main osmotic adjustment substances and the cytoplasmic ion concentration of Caragana species increased significantly. Meanwhile, the total and free water contents and water potential of leaves decreased sig- nificantly; the ratio of bound to free water increased significantly; the stomatal conductance and transpiration rate reduced significantly; and the water use efficiency(WUE) increased significantly. In addition, with the intensification of climatic drought stress, peroxidase(POD) and superoxide dismutase(SOD) activities in leaves increased sig- nificantly. As a result, the malondialdehyde(MDA) content increased while the oxygen free radical content decreased. Our results showed that most of the leaf ecological and physiological traits of the 12 Caragana species varied in ac- cordance with the climatic drought gradient in the Inner Mongolia region, which reflected the adaptation of the Cara- gana species to the local climate conditions. With relatively more active metabolism and faster growth, the Caragana species in the northeast had strong competitive abilities; on the other hand, with stronger resistance to climatic drought stress, the Caragana species in the southwest could survive in harsh environments. Based on our results, we con- cluded that both the environmental gradients and the adaptive responses of Caragana species to their environments played important roles in the formation of the Caragana species distribution pattern across the Inner Mongolia region. | LiNa XIE ChengCang MA HongYu GUO QingFang LI YuBao GAO | 2014 | Journal of Arid Land2014，6，3： | 5 |
| 2 | Variation and heritability of morphological and physiological traits among Leymus chinensis genotypes under different environmental conditions显示文摘Intraspecific trait variation and heritability in different environmental conditions not only suggest a potential for an evolutionary response but also have important ecological consequences at the population, community, and ecosystem levels. However, the contribution of quantitative trait variation within a grassland species to evolutionary responses or ecological consequences is seldom documented. Leymus chinensis is an important dominant species in semi-arid grasslands of China, which has seriously suffered from drought and high temperature stresses in recent decades. In the present study, we measured variation and heritability of 10 quantitative traits, namely the number of tillers, maximum shoot height, number of rhizomes, maximum rhizome length, rhizome mass, aboveground mass, root mass, maximum net photosynthetic rate(Pmax), specific leaf area(SLA), and leaf length to leaf width ratio(LL/LW), for 10 genotypes of L. chinensis under one non-stress(Ck) condition and three environmental stress conditions(i.e., drought(Dr), high temperature(Ht), and both drought and high temperature(DrHt)). Result indicated that(1) the interaction of genotype and environmental condition(G×E) was significant for 6 traits but not significant for the other 4 traits as shown by two-way analysis of variance(ANOVA), suggesting that different selection forces were placed for different traits on the factors dominating phenotypic responses to different environmental conditions. Moreover, these significant G×E effects on traits indicated significantly different phenotypic adaptive responses among L. chinensis genotypes to different environmental conditions. Additionally, individuals could be grouped according to environmental condition rather than genotype as shown by canonical discriminant analysis, indicating that environmental condition played a more important role in affecting phenotypic variation than genotype;(2) by one-way ANOVA, significant differences among L. chinensis genotypes were found in all 10 traits under Ck and Dr conditions, in 8 traits under Dr Ht condition and only in 4 traits under Ht condition; and(3) all 10 traits showed relatively low or non-measurable broad-sense heritability(H_2) under stress conditions. However, the lowest H_2 value for most traits did not occur under DrHt condition, which supported the hypothesis of 'unfavorable conditions have unpredictable effects' rather than 'unfavorable conditions decrease heritability'. Results from our experiment might aid to improve predictions on the potential impacts of climate changes on L. chinensis and eventually species conservation and ecosystem restoration. | YANG Xue LI Junpeng ZHAO Tingting MO Lidong ZHANG Jianli REN Huiqin ZHAO Nianxi GAO Yubao | 2019 | Journal of Arid Land2019，11，1： | 4 |
| 3 | Characteristics of plant calcium fractions for 25 species in Tengger Desert显示文摘Little attention has been paid to plant calcium fractions in the desert.To address the characteristic of the calcium fractions of desert plants,we collected 25 plant species in Tengger Desert,observed the calcium crystals using an optical microscope and determined water soluble calcium,acetic acid soluble calcium,and hydrochloric acid soluble calcium.To do so,we used sequential fractionation procedures to probe the relationships among different functional groups,different growth forms,or different successional stages.The results showed that the psammophyte,the late successional plants,and the drought-resistant shrub and semi-shrub all held considerable calcium oxalate crystal compared to the grassland plants,the early successional plants,and the perennial herb.With the proceeding succession,the acetic acid soluble calcium decreased gradually,and the hydrochloric acid soluble calcium increased gradually.The perennial herb had more water soluble calcium,while shrub held greater hydrochloric acid soluble calcium.The grassland plants held more water soluble calcium,while psammophyte had greater hydrochloric acid soluble calcium.This implies that the plants that are relatively sensitive to drought hold more calcium ion,while the drought-resistance plants hold more calcium oxalate.Thus,the plant calcium components are in close relation to plant drought-resistance,and of important significance in plant physiology of the desert. | HuaCong Ci XingDong lie Rong Li Wei Wu PingPing Xue YuBao Gao HaLin Zhao | 2010 | Research in Cold and Arid Regions2010，2，2： | 3 |
| 4 | Comparisons of plant calcium fraction between two different vegetation zones in semi-arid region显示文摘To explore the characteristics of plant calcium(Ca) fraction, we analyzed 91 plant species in the Ningxia Habahu National Nature Reserve in Yanchi County of Ningxia and 84 plant species in Zhenglan Banner of Inner Mongolia. Results show that, for the two regions, there is no significant difference between Ca fraction for the same growth type, and between water soluble Ca content or between hydrochloric acid soluble Ca content for plants of the same ecosystem and between hydrochloric acid soluble Ca content for plants of the same family. In similar vegetation zones, there is a significant difference among hydrochloric acid soluble Ca content for different growth types in Yanchi County and Zhenglan Banner,which was the highest for annual herbs and the lowest for perennial herbs. There is a significant difference between acetic acid soluble Ca content and between hydrochloric acid soluble Ca content for sandy land and grassland ecosystems in Yanchi County. There is a significant difference among the same Ca fraction of different families in the same region. Thus, the characteristics of plant Ca fraction are results of long-term adaptation to the environment. | MengQi Li XingDong He XiangXiang Yang YueDan Zhao YuBao Gao | 2018 | Research in Cold and Arid Regions2018，10，4： | 2 |
| 5 | Effects of soil stoichiometry of the CaCO_3/available phosphorus ratio on plant density in Artemisia ordosica communities显示文摘In soil, CaCO3 can reduce the availability of phosphorus in arid and semi-arid regions, thereby influencing plant growth. However, the effects of soil stoichiometry of the CaCO3/available phosphorus ratio (CaCO3/AP ratio) on plant density are unknown. In this study, we examined 4 Artemisia ordosica communities located in arid and semi-arid regions, and performed a pot experiment with an orthogonal design to examine the relationships between the soil CaCO3/AP ratio and plant density. The results showed that the soil stoichiometry of the CaCO3/AP ratio had a greater effect on growth of A. ordosica than either CaCO3 or AP as single factor. The influence of the soil CaCO3/AP ratio on density of A. ordosica was related to the climatic zone and the types and/or amplitudes of increases in the soil CaCO3/AP ratio. When the soil CaCO3/AP ratio was within the same amplitude and was less than 2.5, the A. ordosica density increased in the semi-arid region, whereas the density decreased with increasing soil CaCO3/AP ratios in the arid region. In the semi-arid region, when the soil CaCO3/AP ratio was within the same amplitude and the increase in the soil CaCO3 content was greater than the increase in soil AP, the A. ordosica density increased with increasing soil CaCO3/AP ratios. This means that the relationship between the soil CaCO3/AP ratio and the A. ordosica density remained the same. In the arid region, an increase in the soil CaCO3/AP ratio as a result of increased soil CaCO3 content and decreased soil AP resulted in increased density of A. ordosica. Therefore, the relationship between soil CaCO3/AP ratios and density of A. ordosica was altered by these changes in soil chemistry. Thus, the soil stoichiometry of the CaCO3/AP ratio is an important factor affecting the density of A. ordosica in arid and semi-arid regions. | ZHAO XueLai HE XingDong XUE PingPing ZHANG Ning WU Wei LI Rong CI HuaCong XU JingJing GAO YuBao ZHAO HaLin | 2012 | Chinese Science Bulletin2012，57，5： | 2 |
| 6 | Impacts of grazing and mowing on reproductive behaviors of Stipa grandis and Stipa krylovii in a semi-arid area显示文摘Disturbance can affect biomass allocation of plants,but can it influence plant reproductive behavior?To address this issue,we performed field plant community investigations and explored the reproductive behaviors of Stipa grandis and Stipa krylovii in response to grazing and mowing treatments at Maodeng pasture of Xilinguole League of Inner Mongolia,China during 2007–2009.The results showed that,with a similar niche width for the two plant species under mowing and grazing treatments,mowing significantly increased the ratio of ramet to genet number of S.krylovii and the carbon to nitrogen ratio of S.grandis,and grazing significantly decreased the ratio of vegetative to reproductive tiller biomass of S.grandis and increased the ratio of vegetative to reproductive tiller number of S.krylovii.Regression analysis showed that the significantly positive effect of root to shoot biomass ratio was stronger on the ratio of vegetative to reproductive tiller number of S.grandis than on that of S.krylovii.These results indicated that grazing and mowing influenced the reproductive manner and the process of sexual reproduction of S.grandis and S.krylovii. | Hui GAO YuBao GAO XingDong HE | 2014 | Journal of Arid Land2014，6，1： | 2 |
| 7 | Peginterferon-α2a combined with response-guided short-term lamivudine improves response rate in hepatitis B e antigen-positive hepatitis B patients: a pilot study显示文摘 | Zhanlian Huang Hong Deng Qiyi Zhao Yubao Zheng Liang Peng Chaoshuang Lin Zhixin Zhao Zhiliang Gao | 2013 | European Journal of Gastroenterology & Hepatology2013，，10： | 1 |
| 8 | A baicalin-loaded coaxial nanofiber scaffold regulated inflammation and osteoclast differentiation for vascularized bone regeneration显示文摘We demonstrate a simple,effective and feasible method to address the shrinkage of Poly(lactic-co-glycolic acid)(PLGA)through a core-shell structure fiber strategy.The results revealed that introducing size-stable poly-caprolactone(PCL)as the core fiber significantly improved the PLGA-based fibrous scaffold’s dimensional maintenance.We further utilized fish collagen to modify the PLGA shell layer(PFC)of coaxial fibers and loaded baicalin(BA)into the PCL core layer(PCL-BA)to endow fibrous scaffold with more functional biological cues.The PFC/PCL-BA fibrous scaffold promoted the osteogenic differentiation of bone mesenchymal stem cells and stimulated the RAW264.7 cells to polarize into a pro-reparative phenotype.Importantly,the in vivo study demonstrated that the PFC/PCL-BA scaffold could regulate inflammation and osteoclast differentiation,favor neovascularization and bone formation.This work tactfully combined PLGA and PCL to establish a drug release platform based on the core-shell fibrous scaffold for vascularized bone regeneration. | Shue Jin Jing Gao Renli Yang Chen Yuan Ruili Wang Qin Zou Yi Zuo Meifang Zhu Yubao Li Yi Man Jidong Li | 2022 | Bioactive Materials2022，7，2： | 1 |
| 9 | Design and FPGA implemen-tation of linear FIR low-pass filter based on kaiser window function显示文摘 | Jinding Gao Yubao Hou Long Su | 2011 | Proceedings-4th International Conference on Intelligent ComputationTechnology and Automation ICICTA 2011 v 2 p 496-4982011，2011，： | 1 |
| 10 | Effects of soil nitrate:ammonium ratio on plant carbon:nitrogen ratio and growth rate of Artemisia sphaerocephala seedlings显示文摘Can soil nitrate: ammonium ratios influence plant carbon: nitrogen ratios of the early succession plant? Can plant carbon: nitrogen ratios limit the plant growth in early succession? To address these two questions, we performed a two-factor (soil nitrate: ammonium ratio and plant density) randomized block design and a uniform-precision rotatable central composite design pot experiments to examine the relationships between soil nitrate: ammonium ratios, the carbon: nitrogen ratios and growth rate of Artemisia sphaerocephala seedlings. Under adequate nutrient status, both soil nitrate: ammonium ratios and plant density influenced the carbon: nitrogen ratios and growth rate of A. sphaerocephala seedlings. Under the lower soil nitrate: ammonium ratios, with the increase of soil nitrate: ammonium ratios, the growth rates of plant height and shoot biomass of A. sphaerocephala seedlings decreased significantly; with the increase of plant carbon: nitrogen ratios, the growth rates of shoot biomass of A. sphaerocephala seedlings decreased significantly. Soil nitrate: ammonium ratios affected the carbon: nitrogen ratios of A. sphaerocephala seedlings by plant nitrogen but not by plant carbon. Thus, soil nitrate: ammonium ratios influenced the carbon: nitrogen ratios of A. sphaerocephala seedlings, and hence influenced its growth rates. Our results suggest that under adequate nutrient environment, soil nitrate: ammonium ratios can be a limiting factor for the growth of the early succession plant. | Rong Li XingDong He PingPing Xue HuaCong Ci Wei Wu YuBao Gao HaLin Zhao | 2010 | Research in Cold and Arid Regions2010，2，5： | 1 |
| 11 | Effects of soil nitrogen:phosphorus ratio on growth rate of Artemisia ordosica seedlings显示文摘To address how the ratios of nitrogen and phosphorus (N:P ratios) in soil affect plant growth, we performed a two-factor (soil available N:P ratios and plant density) randomized block pot experiment to examine the relationships between soil N:P ratios, and the N:P ratios and growth rate of Artemisia ordosica seedlings. Under moderate water stress and adequate nutrient status, both soil N:P and plant density influenced the N:P ratios and growth rates of A. ordosica. With the increase of soil N:P ratios, the growth rates of A. ordosica seedlings decreased significantly. With the increase of soil N:P ratios, N:P ratios in A. ordosica seedlings increased significantly. While the nitrogen concentrations in the plant increased slightly, the phosphorus concentrations significantly decreased. With the increase of plant density, the shoot N:P ratios and growth rates significantly decreased, which resulted from soil N:P ratios. Thus, soil N:P ratios influenced the N:P ratios in A. ordosica seedlings, and hence, influenced its growth. Our results suggest that, under adequate nutrient environment, soil N:P ratios can be a limiting factor for plant growth. | Wei Wu XingDong He HuaCong Ci Rong Li PingPing Xue YuBao Gao HaLin Zhao | 2010 | Research in Cold and Arid Regions2010，2，4： | 1 |
| 12 | Phenotypic plasticity of Artemisia ordosica seedlings in response to different levels of calcium carbonate in soil显示文摘Plant phenotypic plasticity is a common feature that is crucial for explaining interspecific competition, dynamics and biological evolution of plant communities. In this study, we tested the effects of soil CaCO_3(calcium carbonate) on the phenotypic plasticity of a psammophyte, Artemisia ordosica, an important plant species on sandy lands in arid and semi-arid areas of China, by performing pot experiments under different CaCO_3 contents with a two-factor randomized block design and two orthogonal designs. We analyzed the growth responses(including plant height, root length, shoot-leaf biomass and root biomass) of A. ordosica seedlings to different soil CaCO_3 contents. The results revealed that, with a greater soil CaCO_3 content, A. ordosica seedlings gradually grew more slowly, with their relative growth rates of plant height, root length, shoot-leaf biomass and root biomass all decreasing significantly. Root N/P ratios showed significant negative correlations with the relative growth rates of plant height, shoot-leaf biomass and root length of A. ordosica seedlings; however, the relative growth rate of root length increased significantly with the root P concentration increased, showing a positive correlation. These results demonstrate that soil CaCO_3 reduces the local P availability in soil, which produces a non-adaptive phenotypic plasticity to A. ordosica seedlings. This study should prove useful for planning and promoting the restoration of damaged/degraded vegetation in arid and semi-arid areas of China. | XUE Pingping ZHAO Xuelai GAO Yubao HE Xingdong | 2019 | Journal of Arid Land2019，11，1： | 1 |
| 13 | Using functional trait diversity to infer community assembly mechanisms:an exclosure experiment as an example显示文摘Aims The Qinghai-Tibetan Plateau has a mean altitude exceeding 4000 m and covers about 2.5 million km2.More than 60%of this area is alpine grassland.Exclosures have been widely used in this region to study the sustainable use of grassland resources.We used patterns of functional trait diversity to infer the effects of exclosures on com-munity assembly in alpine meadows.Methods We studied functional diversity using five traits under grazing and three enclosed(exclosure)plots(3,8,and 18 years old)in an alpine meadow on the Qinghai-Tibetan Plateau.We quantified the strength of the community assembly processes by comparing the observed functional trait diversity with a null model that assumes random community assembly.Important findings We found evidence for deterministic assembly processes for plant communities in exclosures.The changes in CWM of the five traits from grazing land to 18-year exclosure indicated that environmen-tal filtering occurred due to the exclosures.Multivariate functional diversity(MFDis and MPDses),and functional diversity of individual traits,including that of leaf area,leaf weight and aboveground bio-mass(FDis of leaf area,leaf weight,and aboveground biomass),increased gradually from grazing land to the 18-year exclosure,and the values of the 18-year exclosure were significantly greater than null expectation.This can be interpreted to indicate that exclosures resulted in greater competitive interaction between species.These results suggest that the effect of exclosures on community assembly is more deterministic than stochastic in this meadow. | Xiaoqin Liu Xiang Zhang Lifeng Zhang Yingnian Li Liang Zhao Shixiao Xu Yubao Gao Song Gu | 2019 | Journal of Plant Ecology2019，12，3： | 1 |
| 14 | Epichloë内生真菌对宿主羽茅生长和竞争力的影响与土壤微生物多样性有关显示文摘Epichloë内生真菌存在于许多禾草的地上部分组织中,地上内生真菌和地下土壤微生物都能影响植物的生长,但关于二者同时对植物生长和竞争力影响的研究却很少。本文旨在研究地上部分内生真菌对宿主禾草的生长和竞争能力的作用是否受到土壤微生物的影响。本文以感染Epichloë内生真菌(EI)和不感染内生真菌(EF)的羽茅(Achnatherum sibiricum)以及大针茅(Stipa grandis)为植物材料,采用湿筛法获得具有不同多样性的微生物接种物。试验采用3因素随机区组设计:一是羽茅的内生真菌感染状况,包括EI和EF;二是土壤接种物的微生物组成,包括混合微生物组分(高多样性)和小型微生物组分(低多样性);三是种植方式,包括单独种植、单种和混种。植物种植16周后测定了植物生长和竞争状况。当羽茅单株或单种种植时,内生真菌对羽茅的生长和种内相互作用无显著影响,但内生真菌显著缓解了土壤微生物对羽茅单株种植时的抑制作用。当羽茅与大针茅混种时,内生真菌和土壤微生物对羽茅的种间竞争力具有显著的交互作用,当接种小型微生物组分时,内生真菌显著提高了宿主植物的种间竞争力;而当接种包含大型微生物的混合微生物组分时,内生真菌对宿主种间竞争力无显著影响。方差分析表明,内生真菌和土壤微生物交互作用对羽茅种间竞争力的贡献比内生真菌和土壤微生物的贡献均大。 | Yaobing Qu Tianzi Qin Xinjian Shi Jing Chen Hui Liu Nianxi Zhao Yubao Gao Anzhi Ren | 2023 | Journal of Plant Ecology2023，16，1： | 0 |
| 15 | Effects of endophyte infection on the competitive ability of Achnatherum sibiricum depend on endophyte species and nitrogen availability显示文摘Aims the leaves of almost all terrestrial plant species are colonized by endophytic fungi.compared to agronomic grasses,which usually harbor few endophytes,native grasses generally possess greater endophyte species diversity.Existing studies examining endophyte effects on natural grasses under competition normally considered the infection status(infected or uninfected),and rarely considered endophyte species.Methods We examined the effects of endophyte infection and of endophyte species on the interspecific competitive ability of a subdominant species,Achnatherum sibiricum,at two nitrogen levels(high ni-trogen and low nitrogen).Achnatherum sibiricum plants infected by two different species of endophyte(Epichloësibirica and E.gansuensis)and uninfected plants were grown in monoculture and binary mixtures with a dominant species,Stipa grandis(six individuals per species for monocultures and three+three in-dividuals of each species in mixtures).Shoot and root biomass,tiller number and total phenolic concentration were measured after 3 months.Moreover,the aggressivity index was calculated to compare the competitive ability of A.sibiricum relative to S.grandis.Important Findings Both E.gansuensis(Eg)-and E.sibirica(Es)-infected A.sibiricum plants showed a greater competitive ability than the uninfected plants under high nitrogen supply,while the opposite result oc-curred under low nitrogen supply.At high nitrogen levels,Eg plants had a higher tiller number and a greater shoot biomass in-hibitory effect on S.grandis than Es plants had when growing in mixture,while Es plants showed better root growth performance than Eg and uninfected plants under mixture conditions at all ni-trogen levels.A higher concentration of phenolic compounds in Eg plants than in Es plants might contribute to the higher inhibi-tory effect of Eg plants on competing plants.Our study indicates that the interaction between endophyte infection and nitrogen availability can alter the competitive ability of the host plant A.sibiricum but that these two endophyte species work in different ways,which may influence the coexistence of A.sibiricum with the dominant species. | Yong Zhou Xia Li Hui Liu Yubao Gao Wade J.Mace Stuart D.Card Anzhi Ren | 2019 | Journal of Plant Ecology2019，12，5： | 0 |
| 16 | Photosynthetic pigments and photosynthetic products of endophyteinfected and endophyte-free Lolium perenne L.under drought stress conditions显示文摘Endophyte-infected(EI)seeds of Lolium perenne L.were used to attain endophyte-free(EF)population by heating the seeds at 43℃for 15 min and then 57℃for 25 min.Relative water content(RWC),chlorophyll,soluble sugar and starch content of EI and EF populations under normal and drought stress conditions were compared to investigate the effect of endophyte infection on the host plant.Under severe stress,RWC of EI leaf was significantly higher than that of EF leaf,i.e.EI plants took more advantages over EF plants in water-holding ability.Under mild stress,endophyte could enhance soluble sugars in host plants to improve their osmotic ability.With stress intensification,the improvement of endophyte no longer existed,and more photosynthetic products(such as starch)accumulated in EI plants to survive through the undesirable conditions.In the next spring,EI populations will recover more rapidly than EF populations.The biomass of a population is closely related to its photosynthesis.Under severe stress,EI population significantly accumulated more biomass than EF population.As far as photosynthetic pigments were concerned,contents of Chla,Chlb and Car of EI plants were close to those of EF plants,which suggested that endophyte infection didn’t alleviate photosynthetic pigments from being destroyed by drought stress,and endophyte might improve photosynthesis ability of its host plant in other ways. | Ren Anzhi Gao Yubao Wang Wei Wang Jinlong | 2006 | Frontiers in Biology2006，1，2： | 0 |
| 17 | Drought resistance of four grasses using pressure-volume curve显示文摘Pressure-volume curve(PV curve)technique is a major method for studying critical plant water potential and critical tissue water content when plasmolysis takes place.In the present study,a mathematical solution method is put forward to obtain parameters based on the PV curve.The cal-culated results for the parameters of Lolium perenne,Festuca arundinacea,Leymus chinensis and Stipa krylovii indicated that the mathematical solution method is convenient for actual research compared with the graphical method.Further analysis of the calculations suggested that drought resistance decreased in the following order:S.krylovii>F.arundinacea and L.chinensis>L.perenne. | HE Xingdong CONG Peifang GAO Yubao LU Jianguo WANG Haitao XUE Pingping ZHANG Xu | 2007 | Frontiers in Biology2007，2，4： | 0 |
| 18 | Investigation on the short-term outcome and prognostic impact of predisposition,and precipitants in inpatients with chronic liver disease from Chinese AcuTe on CHronic LIver FailurE(CATCH-LIFE)cohorts显示文摘Aim:The study aimed to investigate the short-term outcomes of hospitalized patients with chronic liver disease(CLDs)and assess the prognostic impact of predisposition and precipitants,which currently remains unclear.Methods:The study included 3970 hospitalized patients with CLDs from two prospective longitudinal multicenter studies(NCT02457637 and NCT03641872)conducted in highly endemic hepatitis B virus(HBV)areas.Competing risk analysis was used to evaluate the effect of predispositions,including the etiology and severity of CLDs and precipitants;on sequential 28,90,and 365-day liver transplantation(LT)-free mortality.Results:Among all enrolled patients,76.8%of adverse outcomes(including death and LT)within one year occurred within 90 days.Compared with alcoholic etiology,the association of HBV etiology with poorer outcomes was remarkably on the 28th day(hazard ratio[HR],1.81;95%confidence interval[CI],1.07-3.06;p=0.026);however,and dimin-ished or became insignificant at 90 days and 365 days.Cirrhosis increased the adjusted risk for 365-day(HR,1.50;CI,1.13-1.99;p=0.004)LT-free mortality when compared with noncirrhosis.In patients with cirrhosis,prior decompensation(PD)independently increased the adjusted risk of 365-day LT-free mortality by 1.25-fold(p=0.021);however,it did not increase the risk for 90-day mortality.Neither the category nor the number of precipitants influenced the adjusted risk of 28 or 90-day LT-free mortality.Conclusions:The 90-day outcome should be considered a significant endpoint for evaluating the short-term prognosis of hospitalized patients with CLD.Predisposing factors,other than etiology,mainly affected the delayed(365-day)outcome.Timely effective therapy for CLD etiology,especially antiviral treatments for HBV,and post-discharge long-term surveillance monitoring in cirrhotic patients undergoing PD are suggested to enhance disease management and reduce mortality. | Yan Zhang Wenting Tan Xiaobo Wang Xin Zheng Yan Huang Beiling Li Zhongji Meng Yanhang Gao Zhiping Qian Feng Liu Xiaobo Lu Jia Shang Yubao Zheng Weituo Zhang Shan Yin Wenyi Gu Tongyu Wang Jianyi Wei Zixuan Shen Guohong Deng Yi Zhou Yixin Hou Qun Zhang Shue Xiong Jing Liu Liyuan Long Ruochan Chen Jinjun Chen Xiuhua Jiang Sen Luo Yuanyuan Chen Chang Jiang Jinming Zhao Liujuan Ji Xue Mei Jing Li Tao Li Rongjiong Zheng Xinyi Zhou Haotang Ren Yu Shi Hai Li for the CATCH‐LIFE Study Investigators of Chinese(Acute‐on)Chronic Liver Failure(CLIF)Consortium(Ch‐CLIFC) | 2023 | Portal Hypertension & Cirrhosis2023，2，3： | 0 |
| 19 | Construction and Properties of Simvastatin and Calcium Phosphate Dual-Loaded Coaxial Fibrous Membranes with Osteogenic and Angiogenic Functions显示文摘The ideal Guided Bone Regeneration(GBR)membrane is required to have good biocompatibility,space maintenance ability,appropriate degradation rate,and preferably can guide the regeneration of vascularized bone tissue.In this study,Simvastatin(SIM)and calcium Phosphate(CaP)were encapsulated in a Polycaprolactone(PCL)/Chitosan(CS)core-shell structural fibrous membranes via coaxial electrospinning technology.The results showed that loaded SIM in the core of the core-shell structure fibrous membranes could sustainably release the drug for more than two months and upregulate the angiogenic marker of Bone Mesenchymal Stem Cells(BMSCs).Adding a certain amount of CaP to the shell layer provided more sites for the mineralization and synergistic with SIM to promote osteogenic differentiation of BMSCs in vitro.The intramuscular implantation experiments in rabbits suggested a normal early inflammation and enhanced vascularization induced by the SIM-loaded fibrous membranes.This study proposed an effective strategy to prepare a dual-loaded core-shell fibrous membrane for guided vascularized bone tissue regeneration. | Chang Liu Dan Deng Jing Gao Shue Jin Yi Zuo Yubao Li Jidong Li | 2022 | Journal of Bionic Engineering2022，19，6： | 0 |
| 20 | Features on N/P ratio of plants with different functional groups between two types of steppe in semi-arid area显示文摘The differences in nitrogen/phosphorus(N/P)ratios of different functional groups in ecology are more helpful in explaining species competition and community dynamics.Based on the functional groups of plant growth type,carbon metabolism pathway,root type and phylogenetic type,we analyzed characteristics of leaf N/P ratios of 77 species in Sanggendalai(typical grassland zone)of Zhenglan Banner,Inner Mongolia,China and 91 species in the Habahu National Nature Reserve(desertified grassland zone)in Yanchi County of Ningxia,China.The results show that the N/P ratio(16.91)of C3 plants in the desertified steppe was significantly larger than that(12.72)in the typical steppe,but there was no significant difference between the N/P ratios of C4 plants in the two zones.There was no significant difference in N/P ratios between C3 plants and C4 plants in the same zone.Similarly,the N/P ratio(16.60)of dicotyledons in desertified steppe were significantly higher than that(12.98)in typical steppe,while differences in N/P ratios between monocotyledonous plants of the two zones was not significant,and there existed no significant difference in N/P ratios between dicotyledonous and monocotyledonous plants in the same zone.The N/P ratio had significant difference between gramineous and non-gramineous plants in the typical steppe but not in the desertified steppe,but there existed no significant difference in N/P ratios among different root types of perennial herbaceous plants in the same type of steppe or between two types of steppe.Thus,different features on the N/P ratios of C3 plants and dicotyledonous plants between typical steppe and desertified steppe may lead to different growth status of plants,and the N/P ratio stoichiometric of the same plant functional group may be a foundation of the changes of a plant community. | YueDan Zhao XingDong He Lei Chen XinFeng Ding MengQi Li PingYi Xu YuBao Gao | 2019 | Research in Cold and Arid Regions2019，11，5： | 0 |
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