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318篇 您的检索式:作者名="Duo Wang"
    题名 作者 年代 出处 被引量
1GL3.3, a Novel QTL Encoding a GSK3/SHAGGY- like Kinase, Epistatically Interacts with GS3 to Produce Extra-long Grains in Rice显示文摘Duo Xia Nao Zhou Rongjia Liu Wenhan Dan Pingbo Li Bian Wu Junxiao Chen Lingqiang Wang Guanjun Gao Qinglu Zhang Yuqing He 2018Molecular Plant2018,11,5:41
2Combination of chemotherapy and immunotherapy for colon cancer in China: A meta-analysis显示文摘AIM:To investigate whether autologous dendritic cell(DC)-cytokine-induced killer(CIK)cell therapy is able to improve the therapeutic efficacy of chemotherapy in colon cancer.METHODS:We conducted a systematic review of published papers from the sources of MEDLINE,the Cochrane Central Register of Controlled Trials,EMBASE,the Wanfang Database,the China Science and Technology Periodical Database and China Journal Net.Published data were extracted independently by two authors using predefined database templates.The quality of the data from individual papers was also assessed.The effects of chemotherapy were compared with those of chemotherapy in combination with DC-CIK immunotherapy.The pooled analysis was performed using the data from random or fixed-effect models.RESULTS:Seven trials matched our inclusion criteria(n=533).The overall analysis showed significant survival benefit[one-year overall survival(OS),P<0.0001;twoyear OS,P=0.009;three-year OS,P=0.002]in favor of DC-CIK immunotherapy combined with chemotherapy.Disease-free survival(DFS)rate was improved after the combination of DC-CIK immunotherapy and chemotherapy(one-year DFS,P<0.0001;two-year DFS,P=0.002;three-year DFS,P=0.02).An improved overall response rate(P=0.009)was also observed in patients who received DC-CIK therapy.Furthermore,the analysis of T-lymphocyte subsets in peripheral blood indicated that the number of CD4+T cells significantly increased in the DC-CIK plus chemotherapy group(P<0.05).CONCLUSION:The combination of DC-CIK immunotherapy and chemotherapy was superior in prolonging the survival time and enhancing immunological responses.Zheng-Xu Wang Jun-Xia Cao Zhi-Ping Liu Yu-Xin Cui Chun-Yun Li Duo Li Xiao-Yan Zhang Jin-Long Liu Jun-Li Li 2014World Journal of Gastroenterology2014,20,4:30
3The trend on runoff variations in the Lhasa River Basin显示文摘作为一个学习区域在西藏的高原在拉萨水文学车站上面拿拉萨河盆,年度、每月的吝啬的流量的特征在 1956 ¨ C 期间, 2003 被分析。LIN Xuedong ZHANG Yili YAO Zhijun GONG Tongliang WANG Hong CHU Duo LIU Linshan ZHANG Fei 2008Journal of Geographical Sciences2008,18,1:18
4Genome-wide Association Analyses Reveal the Genetic Basis of Stigma Exsertion in Rice显示文摘耻辱 exsertion,交配系统的米饭的一个关键决定因素,极大地在米饭贡献杂种优势的申请。尽管与耻辱 exsertion 联系的一些量的特点 loci 是印射或克隆的罚款,内在的基因建筑学仍然保持不清楚。我们用在 Oryza sativa 的 533 多样的就职描绘的 650 万 SNP 在耻辱 exsertion 和相关花的特点上执行了染色体宽的协会研究。我们识别了显著地与耻辱 exsertion 和相关特点,其三与三主要谷物尺寸基因 GS3, GW5,和 GW2 co 局部性被联系的 23 genomic loci。进一步的分析显示这三基因由控制小穗状花小穗和耻辱的尺寸和形状影响了耻辱 exsertion。GS3 和 GW5 的联合大部分定义耻辱 exsertion 和相关特点的层次。这二基因的选择在 O 的 subpopulations 之中导致了花的特点的特定的分布。sativa。低耻辱 exsertion 联合 gw5GS3 在栽培米饭变化的一半存在;因此,介绍 GW5gs3 联合进男无菌的线具有为改进混合米饭的种子生产的高潜力。Hao Zhou Pingbo Li WeiboXie Saddam Hussain Yibo Li Duo Xia Hu Zhao Shengyuan Sun Junxiao Chen Hong Ye Jun Hou Da Zhao Guanjun Gao Qinglu Zhang Gongwei Wang Xingming Lian Jinghua Xiao Sibin Yu Xianghua Li Yuqing He 2017Molecular Plant2017,10,4:15
5Effect of minor Sc addition on microstructure and stress corrosion cracking behavior of medium strength Al–Zn–Mg alloy显示文摘Influence of Sc content on microstructure and stress corrosion cracking behavior of medium strength Al–Zn–Mg alloy have been investigated by optical microscopy, scanning electron microscopy, electron backscatter diffraction, transmission electron microscopy and slow strain rate test. The results indicate that the addition of Sc results in the formation of the quaternary coherent Al_3(Sc, Zr, Ti) dispersoids during homogenization treatment, which will inhibit the dynamic recrystallization behavior. The number density of Al_3(Sc, Zr, Ti) particles increases with the increase of Sc content, and thus the recrystallization fraction of hot-extruded alloy is reduced and the peak strength in two-stage artificial aging sample is enhanced. At the same time, the wide of precipitation free zone is reduced, and the content of Zn and Mg in grain boundary particles and precipitation free zone is increased with the increase of Sc content. In peak-aged state, the 0.06 wt% Sc added alloy shows the better stress corrosion cracking resistance than the Sc-free alloy because of the reduction of recrystallization fraction and the interrupted distribution of grain boundary precipitates along grain boundary. However, the further addition of Sc to 0.11 wt% will result in the deterioration of stress corrosion cracking resistance due to the increase of electrochemical activity of grain boundary particles and precipitation free zone as well as hydrogen embrittlement.Zhaoming Li Haichang Jiang Yunli Wang Duo Zhang Desheng Yan Lijian Rong 2018Journal of Materials Science & Technology2018,34,7:14
6Climate change in Mt. Qomolangma region since 1971显示文摘Using monthly average, maximum, minimum air temperature and monthly precipitation data from 5 weather stations in Mt. Qomolangma region in China from 1971 to 2004, climatic linear trend, moving average, low-pass filter and accumulated variance analysis methods, the spatial and temporal patterns of the climatic change in this region were analyzed. The main findings can be summarized as follows: (1) There is obvious ascending tendency for the interannual change of air temperature in Mt. Qomolangma region and the ascending tendency of Tingri, the highest station, is the most significant. The rate of increasing air temperature is 0.234 oC/decade in Mt. Qomolangma region, 0.302 oC/decade in Tingri. The air temperature increases more strongly in non-growing season. (2) Compared with China and the global average, the warming of Mt. Qomolangma region occurred early. The linear rates of temperature increase in Mt. Qomolangma region exceed those for China and the global average in the same period. This is attributed to the sensitivity of mountainous regions to climate change. (3) The southern and northern parts of Mt. Qomolangma region are quite different in precipitation changes. Stations in the northern part show increasing trends but are not statistically significant. Nyalam in the southern part shows a decreasing trend and the sudden decreasing of precipitation occurred in the early 1990s. (4) Compared with the previous studies, we find that the warming of Mt. Qomolangma high-elevation region is most significant in China in the same period. The highest automatic meteorological comprehensive observation station in the world set up at the base camp of Mt. Qomolangma with a height of 5032 m a.s.l will play an important role in monitoring the global climate change.YANG Xuchao ZHANG Yili ZHANG Wei YAN Yuping WANG Zhaofeng DING Mingjun CHU Duo 2006Journal of Geographical Sciences2006,16,3:12
7N and P resorption in a pioneer shrub(Artemisia halodendron) inhabiting severely desertified lands of Northern China显示文摘Nutrient resorption is an important conservation mechanism for plants to overcome nutrient limitation in the less fertile area of desertified land.In the semi-arid Horqin Sandy Land of Northern China,the shrub Artemisia halodendron usually colonizes into the bare ground of severely desertified land as a pioneer species.It is,therefore,expected that A.halodendron will be less dependent on current nutrient uptake through efficient and proficient resorption of nutrients.In this study,we found that averaged nitrogen(N)and phosphorus(P)concentrations in senesced leaves significantly varied from 12.3 and 1.2 mg/g in the shifting sand dune to 15.9 and 1.9 mg/g in the fixed sand dune,respectively,suggesting that foliar N and P resorption of A.halodendron were more proficient in the shifting sand dune.In particular,positive relationships between nutrient concentrations in senesced leaves and soil nutrient availability indicate that A.halodendron in infertile habitats is more likely to manage with a low level of nutrients in senesced leaves,giving this species an advantage in infertile soil.Moreover,foliar N-and P-resorption efficiencies and proficiencies showed limited inter-annual variability although annual precipitation varied greatly among 2007–2009.However,N and P resorption of A.halodendron were not more efficient and proficient than those previously reported for other shrubs,indicating that the pioneer shrub in sand dune environments does not rely more heavily than other plants on the process of resorption to conserve nutrients.Incomplete resorption of nutrients in A.halodendron suggests that senesced-leaf fall would return litter with high quality to the soil,and thereby would indirectly improve soil nutrient availability.The restoration of desertified land,therefore,may be accelerated after A.halodendron pioneers into shifting sand dunes.YuLin LI Chen JING Wei MAO Duo CUI XinYuan WANG XueYong ZHAO 2014Journal of Arid Land2014,6,2:11
8How to identify dislocations in molecular dynamics simulations?显示文摘Dislocations are of great importance in revealing the underlying mechanisms of deformed solid crystals.With the development of computational facilities and technologies,the observations of dislocations at atomic level through numerical simulations are permitted.Molecular dynamics(MD)simulation suggests itself as a powerful tool for understanding and visualizing the creation of dislocations as well as the evolution of crystal defects.However,the numerical results from the large-scale MD simulations are not very illuminating by themselves and there exist various techniques for analyzing dislocations and the deformed crystal structures.Thus,it is a big challenge for the beginners in this community to choose a proper method to start their investigations.In this review,we summarized and discussed up to twelve existing structure characterization methods in MD simulations of deformed crystal solids.A comprehensive comparison was made between the advantages and disadvantages of these typical techniques.We also examined some of the recent advances in the dynamics of dislocations related to the hydraulic fracturing.It was found that the dislocation emission has a significant effect on the propagation and bifurcation of the crack tip in the hydraulic fracturing.LI Duo WANG Feng Chao YANG Zhen Yu ZHAO Ya Pu 2014Science China(Physics,Mechanics & Astronomy)2014,57,12:11
9Major 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 2019Science China Earth Sciences2019,62,11:11
10Single-cell transcriptomic atlas of primate cardiopulmonary aging显示文摘Aging is a major risk factor for many diseases,especially in highly prevalent cardiopulmonary comorbidities and infectious diseases including Coronavirus Disease 2019(COVID-19).Resolving cellular and molecular mechanisms associated with aging in higher mammals is therefore urgently needed.Here,we created young and old non-human primate single-nucleus/cell transcriptomic atlases of lung,heart and artery,the top tissues targeted by SARS-CoV-2.Analysis of cell type-specific aging-associated transcriptional changes revealed increased systemic inflammation and compromised virus defense as a hallmark of cardiopulmonary aging.With age,expression of the SARS-CoV-2 receptor angiotensin-converting enzyme 2(ACE2)was increased in the pulmonary alveolar epithelial barrier,cardiomyocytes,and vascular endothelial cells.We found that interleukin 7(IL7)accumulated in aged cardiopulmonary tissues and induced ACE2 expression in human vascular endothelial cells in an NF-κB-dependent manner.Furthermore,treatment with vitamin C blocked IL7-induced ACE2 expression.Altogether,our findings depict the first transcriptomic atlas of the aged primate cardiopulmonary system and provide vital insights into age-linked susceptibility to SARS-CoV-2,suggesting that geroprotective strategies may reduce COVID-19 severity in the elderly.Shuai Ma Shuhui Sun Jiaming Li Yanling Fan Jing Qu Liang Sun Si Wang Yiyuan Zhang Shanshan Yang Zunpeng Liu Zeming Wu Sheng Zhang Qiaoran Wang Aihua Zheng Shuguang Duo Yang Yu Juan Carlos Izpisua Belmonte Piu Chan Qi Zhou Moshi Song Weiqi Zhang Guang-Hui Liu 2021Cell Research2021,31,4:10
11Firebird sirolimus eluting stent versus bare mental stent in patients with ST-segment elevation myocardial infarction显示文摘在那里的背景是关于在有圣片断举起的病人的药 eluting stent 的价值的很少证据心肌的梗塞(STEMI ) 。我们有希望地设计了使随机化的控制审判比较鲜艳的小鸟 sirolimus eluting stent (鲜艳的小鸟 stent ) 和赤裸的金属 stent (BMS ).Methods 的安全和功效有在一个年时期期间注册的 STEMI 的病人被使随机化经历鲜艳的小鸟 stent 或 BMS 的培植,并且临床并且 angiographic 后续。现在的学习的主要端点晚是在里面损害在 6 个月的腔损失( LLL ),和第二等的端点在一个年时期期间在 6 months.Results 包括 stent 血栓和主要不利心脏的事件(向), 156 个病人被使随机化进鲜艳的小鸟 stent 组(有 57.8 年的平均年龄的 101 个病人)或 BMS 组(有 59.7 年的 55 个病人平均)。六月的 angiographic 后续在分别地分到鲜艳的小鸟 stent 和 BMS 的 66.3% 病人和 63.7% 是可得到的。当 3.6% , 30.9% 和 36.4% 在 BMS 组织时,在鲜艳的小鸟 stent 组在 6 月的后续,死亡,目标容器 revascularization (TVR ) 和向是 2.0% , 6.9% 和 9.9%(P0.05 ) 。稍尖的血栓分别地在两个组发生在 1 个病人。吝啬的 LLL 在鲜艳的小鸟 sirolimus eluting stent 的 BMS group.Conclusion 培植是在鲜艳的小鸟 stent 组对 0.72 公里的 0.18 公里因为 STEMI 可以极大地与 BMS 相比与尖锐 / 稍尖的 stent 血栓的低发生在 6 个月减少 TVR 和向。GAO Hai YAN Hong-bing ZHU Xiao-ling LI Nan AI Hui WANG Jian LI Shi-ying YANG Duo 2007Chinese Medical Journal2007,,10:9
12Berberine inhibits androgen synthesis by interaction with aldo-keto reductase 1C3 in 22Rv1 prostate cancer cells显示文摘Aldo-keto reductase 家庭 1 成员 C3 最近在阉割抵抗的前列腺癌症被认为是一个潜在的治疗学的目标。此处,我们调查了 berberine 是否由通过 Aldo-keto reductase 家庭 1 成员 C3 的抑制减少雄激素合成推迟了阉割抵抗的前列腺癌症的前进。房间生存能力和细胞的睾丸激素内容在前列腺癌症房间被测量。Aldo-keto reductase 家庭 1 成员 C3 mRNA 和蛋白质水平被 RT-PCR 和西方的门栓分析分别地检测。有 AutoDock 工具的计算机分析与 Aldo-keto reductase 家庭 1 成员 C3 探索了 berberine 的分子的相互作用。我们发现 berberine 禁止了 22Rv1 房间增长并且减少以一种剂量依赖者方式的细胞的睾丸激素形成。Berberine 禁止了 Aldo-keto reductase 家庭 1 成员 C3 酶活动,而非影响了 mRNA 和蛋白质表情。分子的停靠学习证明 berberine 能进入 Aldo-keto reductase 家庭 1 成员 C3 和形式 π 的活跃中心; -π和氨基酸的残余 Phe306 和 Phe311 的相互作用。在结论,有 Aldo-keto reductase 家庭 1 成员 C3 的 berberine 的结构的相互作用被减少归因于 Aldo-keto reductase 家庭 1 成员 C3 酶活动的抑制和 22Rv1 前列腺癌症细胞生长的抑制细胞内部的雄激素合成。我们的结果作为铅混合物用 berberine 为 AKR1C3 禁止者的设计,研究,和发展提供试验性的基础。Yuantong Tian , Lijing Zhao Ye Wang Haitao Zhang Duo Xu Xuejian Zhao Yi Li Jing Li 2016Asian Journal of Andrology2016,18,4:9
13Observations of atmospheric pollutants at Lhasa during 2014-2015:Pollution status and the influence of meteorological factors显示文摘Atmospheric pollutants including SO_2, NO_2, CO, O_3 and inhalable particulate matter(PM2.5 and PM10) were monitored continuously from March 2014 to February 2015 to investigate characteristics of air pollution at Lhasa, Tibetan Plateau. Species exhibited similar seasonal variations except O_3, with the peaks in winter but low valleys in summer. The maximum O_3 concentration was observed in spring, followed by summer, autumn, and winter. The positive correlation between O_3 and PM10 in spring indicated similar sources of them, and was assumed to be turbulent transport. Temperature was the dominant meteorological factor for most species in spring. High temperature accelerates O_3 photochemistry, and favors air disturbance which is conductive to dust resuspension in spring. Relative humidity(RH) and atmospheric pressure were the main meteorological factors in summer. RH showed negative correlations with species, while atmospheric pressure posed opposite situation. Wind speed(WS) was the dominant meteorological factor in autumn, the negative correlations between WS and species indicated diffusion by wind. Most species showed non-significant correlations with meteorological factors in winter, indicating the dependence of pollution on source emission rather than restriction by meteorology. Pollution weather character indicated that emissions were from biomass burning and dust suspension, and meteorological factors also played an important role. Air stream injection from the stratosphere was observed during O_3 pollution period. Air parcels from Southwest Asia were observed during air pollution period in winter. An enhancement in air pollutants such as O_3 would be expected in the future, more attention should be given to countermeasures for prevention of air pollution in the future.Bu Duo Lulu Cui Zhenzhen Wang Rui Li Liwu Zhang Hongbo Fu Jianmin Chen Huifang Zhang A.Qiong 2018Journal of Environmental Sciences2018,30,1:9
14The origin of Wx^(la) provides new insights into the improvement of grain quality in rice显示文摘Appearance and taste are important factors in rice(Oryza sativa) grain quality. Here, we investigated the taste scores and related eating-quality traits of533 diverse cultivars to assess the relationships between—and genetic basis of—rice taste and eating-quality. A genome-wide association study highlighted the Wx gene as the major factor underlying variation in taste and eating quality. Notably, a novel waxy(Wx) allele, Wx^(la), which combined two mutations from Wx^(b) and Wx^(in), exhibited a unique phenotype. Reduced GBSSI activity conferred Wx^(la) rice with both a transparent appearance and good eating quality. Haplotype analysis revealed that Wx^(la) was derived from intragenic recombination. In fact,the recombination rate at the Wx locus was estimated to be 3.34 kb/c M, which was about 75-fold higher than the genome-wide mean, indicating that intragenic recombination is a major force driving diversity at the Wx locus. Based on our results, we propose a new network for Wx evolution, noting that new Wx alleles could easily be generated by crossing genotypes with different Wx alleles. This study thus provides insights into the evolution of the Wx locus and facilitates molecular breeding for quality in rice.Hao Zhou Duo Xia Da Zhao Yanhua Li Pingbo Li Bian Wu Guanjun Gao Qinglu Zhang Gongwei Wang Jinghua Xiao Xianghua Li Sibin Yu Xingming Lian Yuqing He 2021Journal of Integrative Plant Biology2021,63,5:8
15Research on Water-Exit and Take-off Process for Morphing Unmanned Submersible Aerial Vehicle显示文摘This paper presents a theoretic implementation method of Morphing Unmanned Submersible Aerial Vehicle(MUSAV),which can both submerge in the water and fly in the air.Two different shapes are put forward so that the vehicle can suit both submergence and flight,considering the tremendous differences between hydrodynamic configuration and aerodynamic configuration of a vehicle.The transition of the two shapes can be achieved by using morphing technology.The water-to-air process,including water-exit,morphing,take-off and steady flight,is analyzed.The hydrodynamic and aerodynamic model of the vehicle exiting the water surface obliquely and then taking off into the air has been founded.The control strategy after morphing is analyzed and the control method is given.Numerical method is used to validate the motion model of the water-exit process.Results of simulations show the validity of the proposed model and the feasibility of MUSAV in theory.HU Jun-hua XU Bao-wei FENG Jin-fu QI Duo YANG Jian WANG Cong 2017China Ocean Engineering2017,31,2:8
16miR164c and miR168a regulate seed vigor in rice^∞显示文摘Micro RNAs(miRNAs)are key regulators of gene expression in many important biological processes of plants.However,few miRNAs have been shown to regulate seed vigor.Here,we conducted microarray assays to analyze miRNA expression levels in seeds of the rice(Oryza sativa L.)cultivar ZR02.Results showed significant differences in the expression of 11 miRNAs between artificially aged and untreated control seeds.Among these,osa-miR164c was transcriptionally upregulated,while osamiR168 a was downregulated in artificially aged seeds;this was verified by quantitative real-time PCR analysis.Under the same aging condition,osa-miR164c overexpression in OE164c transgenic seeds and osa-miR168a silencing in MIM168a transgenic seeds of the rice cultivar Kasalath led to lower germination rates,whereas osa-miR164c silencing Rin MIM164c and osa-miR168a overexpression in OE168a resulted in higher seed germination rates compared with wild-type seeds.Meanwhile,changes in cytomembrane permeability of seeds and in the expression level of osa-miR164c target genes(OsPM27 and OsPSK5)and osamiR168a target genes(OsAGO1 and OsPTR2)under aging conditions coincided with changes in seed vigor induced by osa-miR164c and osa-miR168 a.Thus,genetic manipulation of miRNAs has important implications in the development of crop cultivars with high vigor and extended life span of seeds.Yan Zhou Shiqi Zhou Liping Wang Duo Wu Hailan Cheng Xu Du Dandan Mao Chunlai Zhang Xiaocheng Jiang 2020Journal of Integrative Plant Biology2020,62,4:7
17H2 strain attenuated live hepatitis A vaccines:protective efficacy in a hepatitis A outbreak显示文摘AIM To investigate the protective efficacy ofH2 strain attenuated live hepatitis A vaccines(H2-strain vaccines)in hepatitis A(HA)outbreaks.METHODS With the permission of theirparents,5551 pre-school and grade 1-3 primaryschool children were inoculated with 1 dose(106.5TCID50)of H2-strain vaccines in anonrandomized,controlled trial conducted inFucheng County,Hebei Province in May 1997.Another 6485 children in the same grades andcompatible in gender and age were enrolled ascontrols.Epidemiological and serological surveywas conducted to evaluate the protectiveefficacy of the vaccines.ELISA was used todetect serum IgM anti-HAV.RESULTS HA outbreak started in early May1998,peaked in the middle of the same month,and lasted about 80 days.Overall 302 HA caseswere found,192(53.58%)were 5-9 years old.One vaccinee and 25 control cases were found tohave hepatitis A,which account for 0.28%(1/356)and 5.92%(25/422)of all vaccinees andcontrols in the 14 villages,respectively.The protective efficacy of vaccines was 95.27%(95% Cl:85.83%-104.72%).In subjects testedfor anti-HAV IgM from 13 villages,1(0.40%)overt and 11(4.06%)asymptomatic HAV caseswere found in 271 vaccinees,but 21(6.69%)ofovert and asymptomatic ones were found in 314controls.CONCLUSION H2 strain vaccines were excellent in preventing overt hepatitis A, but not so effective in preventing asymptomatic hepatitis A virus infection. A booster dose might be needed to get permanent reliable immunity.Yu Liang Zhao Zong Da Meng Zhi Yi Xu Jun Jie Guo Shao Ai Chai Cheng Gang Duo Xuan Yi Wang Jin Feng Yao Hong Bin Liu Shun Xiang Qi Hui Bin Zhu 2000World Journal of Gastroenterology2000,6,6:7
18How rice organs are colored: The genetic basis of anthocyanin biosynthesis in rice显示文摘Anthocyanins are a major subclass of flavonoids that have diverse biological functions and benefit human health.In rice(Oryza sativa),the various colors shown by organs are due mainly to the accumulation of anthocyanins and are traits associated with domestication.Elucidating the genetic basis of anthocyanin biosynthesis in rice would support the engineering of anthocyanins as well as shedding light on the evolutionary history of O.sativa.We summarize recent progress in rice anthocyanin biosynthesis research,including gene cloning,biosynthetic pathway discovery,and study of the domestication process.We discuss the application of anthocyanin biosynthesis genes in rice breeding.Our object is to broaden knowledge of the genetic basis of anthocyanin biosynthesis in rice and support the breeding of novel rice cultivars.Duo Xia Hao Zhou Yipei Wang Pingbo Li Pei Fu Bian Wu Yuqing He 2021The Crop Journal2021,9,3:7
19Lithium promotes recovery of neurological function after spinal cord injury by inducing autophagy显示文摘Lithium promotes autophagy and has a neuroprotective effect on spinal cord injury(SCI); however, the underlying mechanisms remain unclear. Therefore, in this study, we investigated the effects of lithium and the autophagy inhibitor 3-methyladenine(3-MA) in a rat model of SCI. The rats were randomly assigned to the SCI, lithium, 3-MA and sham groups. In the 3-MA group, rats were intraperitoneally injected with 3-MA(3 mg/kg) 2 hours before SCI. In the lithium and 3-MA groups, rats were intraperitoneally injected with lithium(LiCl; 30 mg/kg) 6 hours after SCI and thereafter once daily until sacrifice. At 2, 3 and 4 weeks after SCI, neurological function and diffusion tensor imaging indicators were remarkably improved in the lithium group compared with the SCI and 3-MA groups. The Basso, Beattie and Bresnahan locomotor rating scale score and fractional anisotropy values were increased, and the apparent diffusion coefficient value was decreased. Immunohistochemical staining showed that immunoreactivities for Beclin-1 and light-chain 3 B peaked 1 day after SCI in the lithium and SCI groups. Immunoreactivities for Beclin-1 and light-chain 3 B were weaker in the 3-MA group than in the SCI group, indicating that 3-MA inhibits lithium-induced autophagy. Furthermore, NeuN+ neurons were more numerous in the lithium group than in the SCI and 3-MA groups, with the fewest in the latter. Our findings show that lithium reduces neuronal damage after acute SCI and promotes neurological recovery by inducing autophagy. The neuroprotective mechanism of action may not be entirely dependent on the enhancement of autophagy, and furthermore, 3-MA might not completely inhibit all autophagy pathways.Duo Zhang Fang Wang Xu Zhai Xiao-Hui Li Xi-Jing He 2018Neural Regeneration Research2018,13,12:7
20Building a sequence map of the pig pan-genome from multiple de novo assemblies and Hi-C data显示文摘Pigs were domesticated independently in the Near East and China,indicating that a single reference genome from one individual is unable to represent the full spectrum of divergent sequences in pigs worldwide.Therefore,12 de novo pig assemblies from Eurasia were compared in this study to identify the missing sequences from the reference genome.As a result,72.5 Mb of nonredundant sequences(~3% of the genome)were found to be absent from the reference genome(Sscrofa11.1)and were defined as pan-sequences.Of the pan-sequences,9.0 Mb were dominant in Chinese pigs,in contrast with their low frequency in European pigs.One sequence dominant in Chinese pigs contained the complete genic region of the tazarotene-induced gene 3(TIG3)gene which is involved in fatty acid metabolism.Using flanking sequences and Hi-C based methods,27.7% of the sequences could be anchored to the reference genome.The supplementation of these sequences could contribute to the accurate interpretation of the 3D chromatin structure.A web-based pan-genome database was further provided to serve as a primary resource for exploration of genetic diversity and promote pig breeding and biomedical research.Xiaomeng Tian Ran Li Weiwei Fu Yan Li Xihong Wang Ming Li Duo Du Qianzi Tang Yudong Cai Yiming Long Yue Zhao Mingzhou Li Yu Jiang 2020Science China(Life Sciences)2020,63,5:7
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