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271篇 您的检索式:作者名="Yun YIN"
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1Changes in circulating Foxp3^+ regulatory T cells and interleukin-17-producing T helper cells during HBV-related acute-on-chronic liver failure显示文摘AIM:To longitudinally investigate cytokine gene expression and protein levels in Th17 and Treg cells,to observe T-cell phenotypes during hepatitis B virus(HBV)-related acute-on-chronic liver failure(ACHBLF)and to analyze changes in Th17 and Treg phenotypes during disease progression.METHODS:We measured the expression of seven Th17/Treg differentiation-related genes and serum concentrations of the corresponding cytokines in 18ACHBLF,18 chronic hepatitis B(CHB)disease controls and 10 healthy controls(HCs)by real-time quantitative pCR and enzyme linked immunosorbent assay.peripheral Th17 and Treg cell frequencies were analyzed by flow cytometry.RESULTS:From the onset of ACHBLF,patients presented with a conductive Th17 differentiation cytokine environment accompanied by high Th17 frequency and high serum IL-17 levels,which were sustained throughout the disease course.The Treg-related cytokine IL-2and Foxp3 were also up-regulated from disease onset,and Foxp3 gene expression showed a gradually increasing trend during ACHBLF.The circular phenotype of Treg and Th17 cells showed changes from the onset of ACHGLF.At disease onset,Th17 frequency increased significantly compared with both CHB and HCs,but Treg cell frequency decreased significantly compared with CHB.During the ACHBLF event,Th17 frequency remained higher compared with HCs,but decreased sharply from the peak point to the recovery point;Treg cell frequency increased gradually during the ACHBLF event.Treg and Th17 cell counts correlated with ACHBLF development;in all patients,serum IL-17 levels significantly correlated with patient serum ALT levels.In survivors,Th17 frequency at the onset point and the Treg to Th17 ratio at the peak point correlated with the patient’s model for end stage liver disease(MELD)plus sodium(MELD-Na)score.The Treg to Th17 ratio and the Th17 frequency at onset were significant predictors of patient survival.Low Treg/Th17 cell ratios at the onset predicted poor survival.Survivors exhibited an initial decrease in the circulating Treg/Th17 ratio from the onset to the peak time,and subsequently displayed a continuous increase.CONCLUSION:Treg and Th17 cells showed changes in genes,protein levels and T cell phenotypes during ACHBLF events.An increased Treg/Th17 ratio was associated with the survival of ACHBLF patients.Xue-Song Liang Cheng-Zhong Li Yin Zhou Wei Yin Ya Yun Liu Wen-Han Fan 2014World Journal of Gastroenterology2014,20,26:44
2Field experiment on a robust hierarchical metropolitan quantum cryptography network显示文摘A hierarchical metropolitan quantum cryptography network upon the inner-city commercial telecom fiber cables is reported in this paper. The seven-user network contains a four-node backbone net with one node acting as the subnet gateway, a two-user subnet and a single-fiber access link, which is realized by the Faraday-Michelson interferometer set-ups. The techniques of the quantum router, optical switch and trusted relay are assembled here to guarantee the feasibility and expandability of the quantum cryptography network. Five nodes of the network are located in the government departments and the secure keys generated by the quantum key distribution network are utilized to encrypt the instant video, sound, text messages and confidential files transmitting between these bureaus. The whole implementation including the hierarchical quantum cryptographic communication network links and the corresponding application software shows a big step toward the practical user-oriented network with a high security level.XU FangXing CHEN Wei WANG Shuang YIN ZhenQiang ZHANG Yang LIU Yun ZHOU Zheng ZHAO YiBo LI HongWei LIU Dong HAN ZhengFu GUO GuangCan 2009Chinese Science Bulletin2009,54,17:40
3Immunological synergistic mechanisms of trans-/cis-stilbene glycosides in Heshouwu-related idiosyncratic liver injury显示文摘Heshouwu is a traditional non-toxic Chinese medicine commonly used in the clinical setting;however,clinical cases of Heshouwu-induced hepatotoxicity have been frequently reported^([1]).Pharmacoepidemiological studies have found that Heshouwu-induced liver injury occurs only in a small fraction of individuals taking the drug;these patients presented with the typ-Lanzhi He Ping Yin Yakun Meng Jinfa Tang Tingting He Ming Niu Yuming Guo Yun Zhu Jing Jing Chunyu Li Zhijie Ma Jiabo Wang Zhaofang Bai Xiaohe Xiao 2017Science Bulletin2017,62,11:29
4Differential expression of serum miR-126,miR-141 and miR-21 as novel biomarkers for early detection of liver metastasis in colorectal cancer显示文摘Objective:MicroRNAs(miRNAs) have potential as diagnostic biomarkers in cancer.Evaluation of the association between miRNA expression patterns and early detection of liver metastasis in colorectal cancer(CRC) has not been reported.Methods:We investigated the expression of metastasis-associated miRs-31,335,206,141,126,200b,200c,21,Let7a,Let7b and Let7c in localized,liver-metastatic and other organ-metastatic CRC(OM-CRC).Expressions of target miRNAs in serum were evaluated in 116 consecutive localized CRC(L-CRC),72 synchronous liver-metastatic CRC(SLM-CRC) and 36 other OM-CRC by quantitative real-time PCR.Results:Seven of 11 tested miRNAs could be detected from serum.Four miRNAs,miR-126,Let-7a,miR-141 and miR-21 were identified as metastasis-associated miRNAs.Compared with L-CRC,significant upregulated expression was observed for miR-141 and miR-21 in SLM-CRC and OM-CRC,down-regulated expression was observed for miR-126 in SLM-CRC and OM-CRC,and up-regulated expression of Let-7a in OM-CRC.The receiver operating characteristic(ROC) curve showed serum miR-126 had a cut-off [log 10 relative quantity(log 10 RQ)=–0.2005] with 77.78% sensitivity and 68.97% specificity with an area under curve(AUC) of 0.7564,miR-141 had a cut-off(log 10 RQ=–0.2285) with 86.11% sensitivity and 76.11% specificity with an AUC of 0.8279,and miR-21 had a cut-off(log 10 RQ=–0.1310) with 73.61% sensitivity and 66.38% specificity with an AUC of 0.7479.Conclusions:We identified liver metastasis-associated miRNAs,suggesting serum miR-126,miR-141 and miR-21 may be novel biomarkers for clinical diagnosis of early stage liver-metastatic CRC.Jie Yin Zhigang Bai Jianning Song Yun Yang Jin Wang Wei Han Jun Zhang Hua Meng Xuemei Ma Yao Yang Tingting Wang Weirong Li Zhongtao Zhang 2014Chinese Journal of Cancer Research2014,26,1:22
5Isolation and Characterization of an Algicidal Bacterium Indigenous to Lake Taihu with a Red Pigment able to Lyse Microcystis aeruginosa显示文摘Objective To isolate and characterize indigenous algicidal bacteria and their algae-lysing compounds active against Microcystis aeruginosa, strains TH1, TH2, and FACHB 905. Methods The bacteria were identified using the Biolog automated microbial identification system and 16S rDNA sequence analysis. The algae-lysing compounds were isolated and purified by silica gel column chromatography and reverse-phase high performance liquid chromatography. Their structures were confirmed by Nuclear Magnetic Resonance (NMR) and Fourier Transform Infrared (FT-IR) spectroscopy. Algae-lysing activity was observed using microscopy. Results The algae-lysing bacterium LTH-2 isolated from Lake Taihu was identified as Serratia marcescens. Strain LTH-2 secreted a red pigment identified as prodigiosin (C 20 H 25 N 3 O), which showed strong lytic activity with algal strains M. aeruginosa TH1, TH2, and FACHB 905 in a concentration-dependent manner. The 50% inhibitory concentration (IC 50 ) of prodigiosin with the algal strains was 4.8 (±0.4)×10 -2 μg/mL, 8.9 (±1.1)×10-2 μg/mL, and 1.7 (±0.1)×10 -1 μg/mL in 24 h, respectively. Conclusion The bacterium LTH-2 and its pigment had strong Microcystis-lysing activity probably related to damage of cell membranes. The bacterium LTH-2 and its red pigment are potentially useful for regulating blooms of harmful M. aeruginosa.YANG Fei WEI Hai Yan LI Xiao Qin LI Yun Hui LI Xiao Bo YIN Li Hong PU Yue Pu 2013Biomedical and Environmental Sciences2013,26,2:19
6PROPULSIVE PERFORMANCE AND VORTEX SHEDDING OF A FOIL IN FLAPPING MOTION显示文摘The propulsive performance and vortex shedding of oscillating foil, which mimics biological locomotion, were numerically investigated. The objectives of this study were to deal with unsteady force, in particular thrust force, exerted on the foil in pitching and plunging motions, and to explore the relation of the propulsive performance with vortex structures near the foil and vortex shedding in the near wake. The two dimensional incompressible Navier Stokes equations in the vorticity and stream function formulation were solved by fourth order essentially compact finite difference schemes for the space derivatives and a fourth order Runge Kutta scheme for the time advancement. To reveal the mechanism of the propulsive performance, the unsteady force and the shedding of the trailing and leading edge vortices of the foil were analyzed. The effects of some typical factors, such as the frequency and amplitude of the oscillation, the phase difference between the pitching and plunging motions, and the thickness ratio of the foil, on the vortex shedding and unsteady force were discussed.Yang Yan, Lu Xi yun, Yin Xie zhen Department of Mechanics and Mechanical Engineering, University of Science and Technology of China, Hefei 230026, China, 2003Journal of Hydrodynamics2003,15,5:18
7Selective Ferroptosis Inhibitor Liproxstatin-1 Attenuates Neurological Deficits and Neuroinflammation After Subarachnoid Hemorrhage显示文摘Ferroptosis is a form of iron-dependent regulated cell death.Evidence of its existence and the effects of its inhibitors on subarachnoid hemorrhage(SAH)is still lacking.In the present study,we found that liproxstatin-1 protected HT22 cells against hemin-induced injury by protecting mitochondrial functions and ameliorating lipid peroxidation.In in vivo experiments,we demonstrated the presence of characteristic shrunken mitochondria in ipsilateral cortical neurons after SAH.Moreover,liproxstatin-1 attenuated the neurological deficits and brain edema,reduced neuronal cell death,and restored the redox equilibrium after SAH.The inhibition of ferroptosis by liproxstatin-1 was associated with the preservation of glutathione peroxidase 4 and the downregulation of acylCoA synthetase long-chain family member 4 as well as cyclooxygenase 2.In addition,liproxstatin-1 decreased the activation of microglia and the release of IL-6,IL-1 b,and TNF-a.These data enhance our understanding of cell death after SAH and shed light on future preclinical studies.Yang Cao Yin Li Chao He Feng Yan Jian-Ru Li Hang-Zhe Xu Jian-Feng Zhuang Hang Zhou Yu-Cong Peng Xiong-Jie Fu Xiao-Yang Lu Yuan Yao Yu-Yu Wei Yun Tong Yi-Fu Zhou Lin Wang 2021Neuroscience Bulletin2021,37,4:16
8Transmission of climate change impacts from temperature change to grain harvests, famines and peasant uprisings in the historical China显示文摘Because of the complexity of social responses to climate change,as well as limitations of proxy data concerning interactions between climate change and human responses,the social impacts of past climate change and associated response mechanisms,thus,require further investigation.To shed light on the transmission of climate change impacts within historical Chinese society,we selected 30-year resolution sequences of temperature anomalies in eastern China and 10-year resolution sequences of grain harvest grades,famine indices,and frequencies of peasant uprisings in China over the past 2000 years.Using a food security perspective,we analyzed the impacts of temperature changes historically transmitted through Chinese production,population,and social subsystems,and differences in transmission characteristics between cold and warm units.Our results were as follows.(1)From 210 BC to 1910 AD,temperature changes in China were significantly positively correlated with grain harvest grades(correlation coefficient,0.338),and significantly negatively correlated with famine indices,and frequencies of peasant uprisings(correlation coefficients,-0.301 and-0.277,respectively).The correlation coefficients between famine indices and grain harvest grades or frequencies of peasant uprisings were very low.(2)There was a higher proportion of bumper or normal harvests(86.5%of the total decades),more moderate and mild famines(76%),and a lower proportion of peasant uprisings(33.3%)in the 30-year warm units.Conversely,there was a higher proportion of poor or normal harvests(70.7%),a greater proportion of moderate and severe famines(77.6%),and more peasant uprisings(51.7%)in the 30-year cold units.(3)Of the 23 main transmission pathways extending from temperature change to the social subsystem,13 occurred in cold units,of which 7 had an endpoint of peasant uprisings,and 10 occurred in warm units of which 3 had an endpoint of peasant uprisings.The main transmission pathways that were more likely to be associated with the impacts of temperature change were:Cold→poor harvests→severe famines→more uprisings;cold→poor harvests→moderate famines→more uprisings;warm→bumper harvests→mild famines→no uprisings;warm→bumper harvests→moderate harvests→no uprisings;warm→normal harvests→mild famines→no uprisings;and warm→normal harvests→moderate famines→no uprisings.(4)The transmission of the impacts of temperature change was a complex process.Within this process,famine was most prone to being modulated by human society.In the transmission pathways from the production to the social subsystem,there was a stepwise decrease in the occurrence rate of decades that were probably affected by climate change.In all cold units,10.4%of decades ending in more uprisings were most likely to be associated with the impacts of temperature change.In all warm units,47.9%of decades ending in no uprisings were most likely to be associated with the impacts of temperature change.This research can contribute a better understanding on the past interaction mechanisms and processes within the human-climate-ecosystem complex,as well as a better response to the impacts of the ongoing climate change.FANG XiuQi SU Yun YIN Jun TENG JingChao 2015Science China Earth Sciences2015,58,8:15
9A novel partner of Scalloped regulates Hippo signaling via antagonizing Scalloped-Yorkie activity显示文摘由调整 transcriptional 激活剂 Yorkie (Yki ) 的活动的河马(Hpo ) 小径控制织物生长和机关尺寸,它在原子核与抄写因素 Scalloped (Sd ) 联系下游地支持指向基因表示。这里,我们识别新奇蛋白质 Sd-Binding-Protein (SdBP )/Tgi,它直接通过它的 TDU 域为绑定与 Yki 竞争到 Sd 并且禁止 Sd-Yki transcriptional 活动。我们也发现 SdBP 经由它的 PPXY 主题与 Yki WW 领域通过协会在原子核保留 Yki。一起,我们作为 Hpo 小径的一个新奇部件识别 SdBP,否定地调整 Sd-Yki 的 transcriptional 活动限制织物生长。Tong Guo Yi Lu Peixue Li Meng-Xin Yin Dekang Lv Wenjing Zhang Huizhen Wang Zhaocai Zhou Hongbin Ji Yun Zhao Lei Zhang 2013Cell Research2013,23,10:13
10Purification and characterization of keratinase from a new Bacillus subtilis strain显示文摘The aim of this study was to purify and characterize a keratinase produced by a new isolated Bacillus subtilis KD-N2 strain. The keratinase produced by the isolate was purified using ammonium sulphate precipitation, Sephadex G-75 and DEAE (diethylaminoethyl)-Sepharose chromatographic techniques. The purified enzyme was shown to have a molecular mass of 30.5 kDa, as determined by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) analysis. The optimum pH at 50 °C was 8.5 and the optimum temperature at pH 8.5 was 55 °C. The keratinase was partially inactivated by some metal ions, organic solvents and serine protease inhibitor phenylmethanesulfonyl fluoride (PMSF). Sodium dodecyl sulfate (SDS) and ethylene diamine tetraacetic acid (EDTA) had positive effect on the keratinase activity. Reducing agents including dithiothreitol (DTT), mercaptoethanol, L-cysteine, sodium sulphite, as well as chemicals of SDS, ammonium sulfamate and dimethylsulfoxide (DMSO) stimulated the enzyme activity upon a feather meal substrate. Besides feather keratin, the enzyme is active upon the soluble proteins ovalbumin, bovine serum albumin (BSA), casein and insoluble ones as sheep wool and human hair. Calf hair, silk and collagen could not be hydrolyzed by the keratinase.Cheng-gang CAI Ji-shuang CHEN Jiong-jiong QI Yun YIN Xiao-dong ZHENG 2008浙江中西医结合杂志2008,18,9:13
11Impact of climate change on fluctuations of grain harvests in China from the Western Han Dynasty to the Five Dynasties(206 BC–960 AD)显示文摘The occurrence of bumper or poor grain harvests in ancient China plays an important role in explaining how past climate changes affected the economy.Because of the lack of long-term continuous and high-resolution quantitative data for reconstructing the series of grain harvests in ancient China,understanding of the impacts and mechanisms involved in climate change is limited.This study presents a method designed for reconstructing grain harvest series by quantifying grain output levels based on the descriptions in historical documents.The method involves setting the grain output level for each year based on very specific meanings of different words,calculating a yield index based on the structure of each level and assessing grain yields(bumper or poor harvests)every 10 years.First,1636 records related to grain yields(including crop yields,food security,agricultural disasters,grain prices,grain storage and people's livelihoods)for each year were retrieved from history books called the Twenty-Four Histories.Second,using this method,a 10-year resolution graded grain harvest series from the Western Han Dynasty to the Five Dynasties(206 BC–960 AD)is reconstructed.Finally,the relationship between the variations in temperature and precipitation and the fluctuation of grain yields is examined.The results show that from the Western Han Dynasty to the Five Dynasties,bumper,average and poor harvest decades accounted for 33.3%,39.3%and 27.4%of the 1,166-year period,respectively.The grain yields during 206 BC–960 AD can be divided into three stages:a period of bumper harvests during 206–51 BC,poor harvests during 50 BC–590 AD and bumper harvests during 591–960 AD.Bumper harvest decades typically experienced a warm climate with normal or high levels of precipitation,while poor harvest decades had a cold and dry climate.A positive correlation was found between temperature and grain yield because a warm climate allows a full use of resources.The observed relationship between precipitation and grain yield indicated that both flooding and droughts cause poor harvests,which confirms that agricultural production in the monsoon climate of eastern China is greatly impacted by conditions of limited heat and extreme precipitation.SU Yun FANG XiuQi YIN Jun 2014Science China Earth Sciences2014,57,7:13
12Reproductive management through integration of PGD and MPS-based noninvasive prenatal screening/diagnosis for a family with GJB2-associated hearing impairment显示文摘A couple with a proband child of GJB2(encoding the gap junction protein connexin 26)-associated hearing impairment and a previous pregnancy miscarriage sought for a reproductive solution to bear a healthy child. Our study aimed to develop a customized preconception-to-neonate care trajectory to fulfill this clinical demand by integrating preimplantation genetic diagnosis(PGD), noninvasive prenatal testing(NIPT), and noninvasive prenatal diagnosis(NIPD) into the strategy. Auditory and genetic diagnosis of the proband child was carried out to identify the disease causative mutations. The couple then received in-vitro-fertilization treatment, and eight embryos were obtained for day 5 biopsy. PGD was performed by short-tandem-repeat linkage analysis and Sanger sequencing of GJB2 gene. Transfer of a GJB2 c.235del C heterozygous embryo resulted in a singleton pregnancy. At the 13 th week of gestation, genomic DNA(g DNA) from the trio family and cell-free DNA(cf DNA) from maternal plasma were obtained for assessment of fetal chromosomal aneuploidy and GJB2 mutations. NIPT and NIPD showed the absence of chromosomal aneuploidy and GJB2-associated disease in the fetus, which was later confirmed by invasive procedures and postnatal genetic/auditory diagnosis. This strategy successfully prevented the transmission of hearing impairment in the newborn, thus providing a valuable experience in reproductive management of similar cases and potentially other monogenic disorders.XIONG WenPing WANG DaYong GAO Yuan GAO Ya WANG HongYang GUAN Jing LAN Lan YAN JunHao ZONG Liang YUAN Yuan DONG Wei HUANG SeXin WU KeLiang WANG YaoShen WANG ZhiLi PENG HongMei LU YanPing XIE LinYi ZHAO Cui WANG Li ZHANG QiuJing GAO Yun LI Na YANG Ju YIN ZiFang HAN Bing WANG Wei CHEN Zi-Jiang WANG QiuJu 2015Science China(Life Sciences)2015,58,9:12
13Preparation of high-affinity rabbit monoclonal antibodies for ciprofloxacin and development of an indirect competitive ELISA for residues in milk显示文摘A convenient competitive enzyme-linked immunosorbent assay(ELISA) for ciprofloxacin(CPFX) was developed by using rabbit monoclonal antibodies(RabMAbs) against a hapten-protein conjugate of CPFX-bovine serum albumin(BSA).The indirect competitive ELISA of CPFX had a concentration at 50% inhibition(IC50) of 1.47 ng/ml and a limit of detection(LOD) of 0.095 ng/ml.The mAb exhibited some cross-reactivity,however,not so high with enrofloxacin(28.8%),ofloxacin(13.1%),norfloxacin(11.0%),fleroxacin(22.6%),and pefloxacin(20.4%).And it showed almost no cross-reactivity with other antibiotics or sulfonamides evaluated in this study.The competitive ELISA kit developed here could be used as a screening tool to detect and control illegal addition of CPFX in food products.This kit had been applied to milk detection and the recovery rates from samples spiked by CPFX were in a range of 63.02%-84.60%,with coefficients of variation of less than 12.2%.Bin HUANG Yun YIN Lei LU Hai DING Lin WANG Ting YU Jia-jin ZHU Xiao-dong ZHENG Yan-zhen ZHANG 2010Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2010,11,10:11
14Study on the Method of Soil Productivity Assessment in Black Soil Region of Northeast China显示文摘The objective of this paper is to investigate a simple and practical method for soil productivity assessment in the black soil region of Northeast China.Firstly,eight kinds of physicochemical properties for each of 120 soil samples collected from 25 black soil profiles were analyzed using cluster and correlation analysis.Subsequently,parameter indices were calculated using physicochemical properties.Finally,a modified productivity index(MPI) model were developed and validated.The results showed that the suitable parameters for soil productivity assessment in black soil region of Northeast China were soil available water,soil pH,clay content,and organic matter content.Compared with original productivity index(PI) model,MPI model added clay content and organic matter content in parameters while omitted bulk density.Simulation results of original PI model and MPI model were compared using crop yield of land block where investigated soil profiles were located.MPI model was proven to perform better with a higher significant correlation with maize yield.The correlation equation between MPI and yield was:Y = 3.2002Ln(MPI) + 10.056,R2 = 0.7564.The results showed that MPI model was an effective and practical method to assess soil productivity in the research area.DUAN Xing-wu XIE Yun FENG Yan-jie YIN Shui-qing 2009Agricultural Sciences in China2009,8,4:11
15OsMADS16 Genetically Interacts with OsMADS3 and OsMADS58 in Specifying Floral Patterning ~in Rice显示文摘瑞斯(Oryza sativa ) 有贡献谷物产量的唯一的花的模式。然而,在米饭位于花的机关身份的说明下面的分子的机制,特别地在花的 homeotic 基因之中的相互作用,遗体糟糕理解。这里,我们证明花的 homeotic 基因 OsMADS16 (也叫的 SUPERWOMAN1, SPW1, B 班基因) 和在指定花的机关 patterning 的米饭 C 班基因 OsMADS3 和 OsMADS58 的行为。OsMADS16 和二 C 班基因在第三个锭盘创始人房间有一个重叠表示模式。与单个异种相比, spw1-1 osmads3-4 和 spw1-1 osmads58 加倍异种在花以内展出像颖的机关的另外的锭盘,特别地,六像颖的结构的额外的锭盘在野类型的雄蕊的位置形成了。这些宫外的像颖的结构被显示用标记基因通过细胞的观察并且在 situ 杂交分析有 palea 身份。我们的结果建议 B 班和 C 班基因在在花的分裂组织以内压制不确定的生长起一个关键作用,特别地 whorl-3 primordia。我们也假设那,与以前的假设相对照,在米饭的专业化小穗状花小穗机关, palea,在 eudicots 的萼片的对应物,和词根对苞相应。Dapeng Yun Wanqi Liang Ludovico Dreni Changsong Yin Zhigang Zhou Martin M. Kater Dabing Zhang 2013Molecular Plant2013,6,3:11
16Improved MPPT Control Based on the Reduction of Tracking Range显示文摘考虑到基于转矩调整的改进方法存在难以获取最优调整状态的问题,该文针对传统功率曲线法提出收缩风机转速的跟踪区间、减小跟踪路程的改进思路,以优化风机最大功率点跟踪的性能。在此基础上,设计出根据平均风速,周期性的调整起始发电转速的改进功率曲线法。其设计机理在于风速平均值恰好反映了风速及风能量集中分布的区间。因此,最优转速跟踪区间与平均风速存在数量上的直接关系而变得容易预估,且无需迭代搜索。与目前基于调整转矩的改进方法相比,该文所提方法不仅提高了风能捕获效率,且简单易行。最后,通过对模拟风速序列的仿真计算与比较分析,验证了该方法的有效性和先进性。YIN Minghui ZHANG Xiaolian YE Xing ZOU Yun 2012中国电机工程学报2012,32,27:11
17Interactions of OsMADS1 with Floral Homeotic Genes in Rice Flower Development显示文摘在繁殖开发期间,米饭植物开发决定最后的谷物收益的唯一的花器官。OsMADS1,象 SEPALLATA 一样疯盒子的基因之一,被解开了玩关键角色 inrice 花的机关身份说明和花的分裂组织确定性。然而,在调整花开发与另外的花的 homeotic 基因位于 OsMADS1 的相互作用下面的分子的机制 remainslargely 逃犯。在这个工作,我们在他们的蛋白质之中与物理相互作用一起与 B- , C- ,和 D 班基因学习了 OsMADS1 的基因相互作用。我们证明在 OsMADS1 和 OsMADS3 之间的物理、基因的相互作用为花的分裂组织活动维护和机关身份说明是必要的;当 OsMADS1 身体上并且遗传上在调整花的分裂组织确定性和 suppressingspikelet 分裂组织回复与 OsMADS58 交往时。我们提供了重要基因证据在花开发期间支持二米饭 C 班基因(OsMADS3 和 OsMADS58 ) 的 neofunctionalization。基因表示介绍和量的 RT-PCR 分析进一步表明 OsMADS1 影响涉及发信号的花的身份和荷尔蒙的许多基因的表达式,并且染色质 immunoprecipitation (芯片)-PCR 试金进一步证明 OsMADS17 是 OsMADS1 的直接目标基因。一起拿,这些结果表明 OsMADS1 在指定米饭有多样化的规章的功能花的机关和分裂组织身份,可能通过它和不同花的 homeotic 管理者的基因、物理的相互作用。Yun Hu Wanqi Liang Changsong Yin Xuelian Yang Baozhe Ping Anxue Li Ru Jia Mingjiao Chen Zhijing Luo Qiang Cai Xiangxiang Zhao Dabing Zhang Zheng Yuan 2015Molecular Plant2015,8,9:10
18T2 Mapping and Fat Quantification of Thigh Muscles in Children with Duchenne Muscular Dystrophy显示文摘Quantitative magnetic resonance image(MRI)in individual muscles may be useful for monitoring disease progression in Duchenne muscular dystrophy(DMD).The purpose of this study w批to measure丁2 relaxation time of thigh muscles in children with DMD and healthy boys,and to correlate the T2 relaxation time of muscles with the fat fraction(FF)at quantitative magnetic resonance and results of clinical assessment.Thirty-two boys with DMD and 18 healthy boys were evaluated with T2 mapping and three-point Dixon MRI.Age,body mass index(BMI),muscle strength assessment,timed functional tests(time to walk or run 10 metres,rise from the floor and ascend four stairs),and the North Star Ambulatory Assessment(NSAA)were evaluated.Spearman’s correlation was used to assess the relationships between FF and clinical assessments and T2 relaxation time.The mean T2 relaxation time of thigh muscles in DMD was significantly longer than that in the control group(P<0.05),except for the gracilis(P=0.952).The gracilis,sartorius and adductor longus were relatively spared by fatty infiltration in DMD patients.The T2 relaxation time was correlated significantly with the mean FF in all muscles.Age,BMI,total muscle strength score,timed functional tests and NSAA were significantly correlated with the overall mean T2 relaxation time.T2 mapping may prove clinically useful in monitoring muscle changes as a result of the disease process and in predicting the outcome of DMD patients.Liang YIN Zhi-ying XIE Hai-yan XU Sui-sheng ZHENG Zhao-xia WANG Jiang-xi XIAO Yun YUAN 2019Current Medical Science2019,39,1:10
19Cucurbitane triterpenoids from Hemsleya penxianensis显示文摘Two new cucurbitacins,jinfushanencins A(1)and B(2),seven new cucurbitane glycosides,jinfushanosides E-K(3-9),along with nine known analogues,were obtained from the tubers of Hemsleya penxianensis.Their structures were elucidated on the basis of extensive spectroscopic and chemical methods.Selected isolates were tested their anti-HIV-1 activities,and compound 5 showed weak anti-HIV-1 in C8166 cell(EC50=5.9μg/mL)with a selectivity index of 13.5.Jian-Chao CHEN Lin ZHOU Yun-Hua WANG Ren-Rong TIAN Yun-Xin YAN Yin NIAN Yun SUN Yong-Tang ZHENG Ming-Hua QIU 2012Natural Products and Bioprospecting2012,2,4:8
20Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China显示文摘Objective Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.Methods A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients’ medical records. Multivariable logistic regression models were used to estimate the odds ratio(OR) and 95% confidence interval(95% CI) of the associations between comorbidities(cardiometabolic or non-cardiometabolic diseases), clinical severity, and treatment outcomes of COVID-19.Results Overall, 158(13.6%) patients were diagnosed with severe illness and 32(2.7%) had unfavorable outcomes. Hypertension(2.87, 1.30–6.32), type 2 diabetes(T2 DM)(3.57, 2.32–5.49),cardiovascular disease(CVD)(3.78, 1.81–7.89), fatty liver disease(7.53, 1.96–28.96), hyperlipidemia(2.15, 1.26–3.67), other lung diseases(6.00, 3.01–11.96), and electrolyte imbalance(10.40, 3.00–26.10)were independently linked to increased odds of being severely ill. T2 DM(6.07, 2.89–12.75), CVD(8.47,6.03–11.89), and electrolyte imbalance(19.44, 11.47–32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission(5.46,3.25–9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes(6.58, 1.46–29.64) within two weeks.Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes.MA Yan ZHU Dong Shan CHEN Ren Bo SHI Nan Nan LIU Si Hong FAN Yi Pin WU Gui Hui YANG Pu Ye BAI Jiang Feng CHEN Hong CHEN Li Ying FENG Qiao GUO Tuan Mao HOU Yong HU Gui Fen HU Xiao Mei HU Yun Hong HUANG Jin HUANG Qiu Hua HUANG Shao Zhen JI Liang JIN Hai Hao LEI Xiao LI Chun Yan LI Min Qing LI Qun Tang LI Xian Yong LIU Hong De LIU Jin Ping LIU Zhang MA Yu Ting MAO Ya MO Liu Fen NA Hui WANG Jing Wei SONG Fang Li SUN Sheng WANG Dong Ting WANG Ming Xuan WANG Xiao Yan WANG Yin Zhen WANG Yu Dong WU Wei WU Lan Ping XIAO Yan Hua XIE Hai Jun XU Hong Ming XU Shou Fang XUE Rui Xia YANG Chun YANG Kai Jun YUAN Sheng Li ZHANG Gong Qi ZHANG Jin Bo ZHANG Lin Song ZHAO Shu Sen ZHAO Wan Ying ZHENG Kai ZHOU Ying Chun ZHU Jun Teng ZHU Tian Qing ZHANG Hua Min WANG Yan Ping WANG Yong Yan 2020Biomedical and Environmental Sciences2020,33,12:8
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