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1466篇 您的检索式:作者名="DONG N"
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1Geochemistry of the subduction-related magmatic rocks in the Dahong Mountains, northern Hubei Province--Constraint on the existence and subduction of the eastern Mianlüe oceanic basin显示文摘The existence and subduction of the eastern Mianl黣 oceanic basin in the south Qinling belt are keys to understand the Qinling orogen. Based on geological mapping, several volcanic slices have been identified in Tumen, Zhoujiawan, Xiaofu and Yuantan areas, which distribute in the northern margin of the Dahong Mountains (DHM), and thrust into the Sanli-gang-Sanyang fault. These slices consist mainly of diabases, basaltic-andesitic lavas, pyroclastic rocks and a minor tuff. The geochemistry of the basalts, andesites,and diabases is characterized by depleting in Nb and Ta, enriching in Th and LILE (e.g.K, Rb, Ba), and undifferentiating in HFSE. These geochemical characteristics suggest that the original magma of these rocks was derived from a mantle wedge above a subduction zone, and formed in an island-arc setting in Carboniferous-early Triassic. Comparing with the ophiolites and island-arc volcanic rocks in Mianxian-Leyang area to the west, it is reasonable to consider that there had been an oceanic basin connecting with the Mianle ancient ocean to the westward, distributing along the south edge of the Tongbai-Dabie block. In view of the ophiolite in Huashan area and these island-arc volcanic rocks along the north of the Dahong Mountains, it is suggested that there had been a plate tectonic evolutionary history with oceanic basin rifting and subduction in this region.DONG Yunpeng, ZHANG Guowei, ZHAO Xia, YAO Anping & LIU Xiaoming The Key Laboratory of Continental Dynamics, Ministry of Education, Department of Geology, Northwest University, Xi抋n 710069,China 2004Science China Earth Sciences2004,47,4:12
2Measurement of liver volume and its clinical significance in cirrhotic portal hypertensive patients显示文摘Zhu JY Leng XS Dong N Qi GY Du RY 1999World Journal of Gastroenterology1999,5,6:10
3Effects of physiological integration on defense strategies against herbivory by the clonal plant Alternanthera philoxeroides显示文摘Aims The plant-herbivore interaction is one of the most fundamental inter-actions in nature.Plants are sessile organisms,and consequently rely on particular strategies to avoid or reduce the negative impact of herbivory.Here,we aimed to determine the defense strategies against insect herbivores in the creeping invasive plant Alternanthera philoxeroides.Methods We tested the defense response of A.philoxeroides to herbivory by a leaf-feeding specialist insect Agasicles hygrophila and a pol-yphagous sap-feeding insect Planococcus minor.We also tested the mechanisms triggering defense responses of A.philoxeroides by including treatments of artificial leaf removal and jasmonic acid application.Furthermore,we examined the effect of physiological integration on these defense strategies.Important Findings The combination of artificial leaf removal and jasmonic acid appli-cation produced a similar effect to that of leaf-feeding by the real herbivore.Physiological integration influenced the defense strat-egies of A.philoxeroides against herbivores,and increased biomass allocation to aboveground parts in its apical ramets damaged by real herbivores.Our study highlights the importance of physio-logical integration and modular plasticity for understanding the consequences of herbivory in clonal plants.Rubén Portela Bi-Cheng Dong Fei-Hai Yu Rodolfo Barreiro Sergio R.Roiloa 2019Journal of Plant Ecology2019,12,4:5
4Metabolic syndrome does not affect sustained virologic response of direct-acting antivirals while hepatitis C clearance improves hemoglobin A1c显示文摘AIM To determine whether successful treatment with direc-tacting antivirals(DAA) is associated with improvements in hemoglobin A1 c(HbA1 c) and if type 2 diabetes mellitus(T2 DM) or metabolic syndrome affects sustained virologic response(SVR).METHODS We performed a retrospective analysis of all hepatitis C virus(HCV) patients at the VA Greater Los Angeles Healthcare System treated with varying DAA therapy between 2014-2016. Separate multivariable logistic regression was performed to determine predictors of HbA1 c decrease ≥ 0.5 after DAA treatment and predictors of SVR 12-wk post treatment(SVR12).RESULTS A total of 1068 patients were treated with DAA therapy between 2014-2016. The presence of T2 DM or metabolic syndrome did not adversely affect SVR12. 106 patients had both HCV and T2 DM. Within that cohort,patients who achieved SVR12 had lower mean HbA1 c pre treatment(7.35 vs 8.60,P = 0.02),and lower mean HbA1 c post-treatment compared to non-responders(6.55 vs 8.61,P = 0.01). The mean reduction in HbA1 c after treatment was greater for those who achieved SVR12 than for non-responders(0.79 vs 0.01,P = 0.03). In adjusted models,patients that achieved SVR12 were more likely to have a HbA1 c decrease of ≥ 0.5 than those that did not achieve SVR12(adjusted OR = 7.24,95%CI: 1.22-42.94). CONCLUSION In HCV patients with T2 DM,successful treatment with DAA was associated with a significant reduction in HbA1 c suggesting that DAA may have a role in improving insulin sensitivity. Furthermore,the presence of T2 DM or metabolic syndrome does not adversely affect SVR12 rates in patients treated with DAA.Tien S Dong Elizabeth S Aby Jihane N Benhammou Jenna Kawamoto Steven-Huy Han Folasade P May Joseph R Pisegna 2018World Journal of Hepatology2018,10,9:4
5Serotonin type 3 receptor subunit gene polymorphisms associated with psychosomatic symptoms in irritable bowel syndrome:A multicenter retrospective study显示文摘BACKGROUND Single-nucleotide polymorphisms(SNPs)of the serotonin type 3 receptor subunit(HTR3)genes have been associated with psychosomatic symptoms,but it is not clear whether these associations exist in irritable bowel syndrome(IBS).AIM To assess the association of HTR3 polymorphisms with depressive,anxiety,and somatization symptoms in individuals with IBS.METHODS In this retrospective study,623 participants with IBS were recruited from five specialty centers in Germany,Sweden,the United States,the United Kingdom,and Ireland.Depressive,anxiety,and somatization symptoms and sociodemographic characteristics were collected.Four functional SNPs—HTR3A c.-42C>T,HTR3B c.386A>C,HTR3C c.489C>A,and HTR3E c.*76G>A—were genotyped and analyzed using the dominant and recessive models.We also performed separate analyses for sex and IBS subtypes.SNP scores were calculated as the number of minor alleles of the SNPs above.The impact of HTR3C c.489C>A was tested by radioligand-binding and calcium influx assays.RESULTS Depressive and anxiety symptoms significantly worsened with increasing numbers of minor HTR3C c.489C>A alleles in the dominant model(F_(depressive)=7.475,P_(depressive)=0.006;F_(anxiety)=6.535,P_(anxiety)=0.011).A higher SNP score(range 0-6)was linked to a worsened depressive symptoms score(F=7.710,P-linear trend=0.006)in IBS.The potential relevance of the HTR3C SNP was corroborated,showing changes in the expression level of 5-HT3AC variant receptors.CONCLUSION We have provided the first evidence that HTR3C c.489C>A is involved in depressive and anxiety symptoms in individuals with IBS.The SNP score indicated that an increasing number of minor alleles is linked to the worsening of depressive symptoms in IBS.Sabrina Berens Yuanjun Dong Nikola Fritz Jutta Walstab Mauro D'Amato Tenghao Zheng Verena Wahl Felix Boekstegers Justo Lorenzo Bermejo Cristina Martinez Stefanie Schmitteckert Egbert Clevers Felicitas Engel Annika Gauss Wolfgang Herzog Robin Spiller Miriam Goebel-Stengel Hubert Mönnikes Viola Andresen Frieling Thomas Jutta Keller Christian Pehl Christoph Stein-Thöringer Gerard Clarke Timothy G Dinan Eamonn M Quigley Gregory Sayuk Magnus Simrén Jonas Tesarz Gudrun Rappold Lukas van Oudenhove Rainer Schaefert Beate Niesler 2022World Journal of Gastroenterology2022,28,21:2
6Trans-generational effects in the clonal invader Alternanthera philoxeroides显示文摘近年的研究已经揭示出表型可塑性可以通过营养世代遗传。从这个意义上讲,环境诱导的基因调控变化(例如DNA甲基化,即表观遗传变异)会导致可逆的塑性反应传递给后代。这种跨世代的可塑性在克隆植物中尤其重要,因为有性繁殖减少会降低通过遗传变异进行适应的可能性。许多最具侵略性的植物入侵者都具有克隆性,而且克隆性被认为是植物入侵性的关键。本研究中,我们的目标是确定在克隆入侵者喜旱莲子草(Alternanthera philoxeroides)中是否发生了跨代效应,以及这种效应在本地和非本地群落之间是否存在差异。在同质园实验中,我们将采自巴西(原产地)和伊比利亚半岛(非原产地)的喜旱莲子草种群分别种植在养分高和低的土壤中,后代植株被移植到高养分条件下作为对照。为了检验DNA甲基化对跨代可塑性的潜在作用,一半的母株用去甲基化剂5-氮杂胞苷处理。在来自原产地和非原产地的种群中均观察到了跨代效应。有趣的是,在原产地种群的生长变量(分株数、茎生物量、根生物量和总生物量)中发现了跨代效应,而在非原产地种群中发现了生物量分配具有跨代效应。在原产地种群中出现的跨代效应可以用“银勺”效应来解释,而非原产地种群的跨代效应可以归因于DNA甲基化引起的表观遗传传递。本研究强调了跨代效应对克隆植物生长的重要性,这有助于理解众多克隆植物能够成功繁殖扩张的机制。Rubén Portela Bi-Cheng Dong Fei-Hai Yu Rodolfo Barreiro Sergio R.Roiloa Dalva MSilva Matos 2020Journal of Plant Ecology2020,13,1:2
7Fluorescence in situ hybridization of single copy transgenes in rice chromosomes 显示文摘Kharb P Dong J Islam-Faridi M N 2001In vitro Cell & Dev Biol-Plant2001,37,1:1
8Reduced intracellular T-helper 1 interferon-gamma in blood of newly diagnosed children with Crohng disease and age-related changes in Th1/Th2 cytokine profiles 显示文摘Holland N Dong J Garnett E 2008Pediatr Res2008,63,3:1
9Effects of platelet-activating factor,tumor necrosis factor,and interleukin-1α on the expression of apolipoprotein M in HepG2 cells显示文摘Xu N Zhang XY Dong X 2002Biochem Biophys Res Commun2002,292,4:1
10Using rough sets with heuristics for feature selection 显示文摘Zhong N Dong J 2001Journal of Intelligent Information Systems2001,,:1
11Cytotoxic calanquinone A from Calanthe arisanensis and its first total synthesis 显示文摘Chia L L Kyoko N Dong L Y 2008Bioorganie and Medidnal Chemistry Letters2008,,18:1
12Surveys of transmitted HIV drug resistance in 7 geographic regions in China, 2008-2009 显示文摘Liao L Xing H Dong Y Qin G Ma Y Lu H Chen L Zhang L Osborne C Seguy N Wei D Sun F Yang J Ru- an Y Shao Y 2012Clin Infect Dis2012,54,4:1
13查看详情显示文摘I Ren F M Wang X L Dong W J Bai L N 0,,:1
14Horizontal single and multiple slot waveguides: optical transmission at lambda=1550 nm显示文摘Sun R Dong P Feng N N 2007Optics Express2007,15,17:1
15First-principle study on the magnetic properties of six potential half-metallic ferromagnets : C- doped alkaline-earth chalcogenides显示文摘LIU J CHEN L DONG H N ZHENG R L 2009Appl Phys Lett2009,95,13:1
16From clusters to phase diagrams: Composition rules of quasicrystals and bulk metallic glasses 显示文摘DONG C WANG Q QIANG J B WANG Y M JIANG N HAN G LI Y H WU J XIA J H 2007J Phys D: Appl Phys2007,40,:1
17Effects of platelet-activating factor,tumor necrosis factor,and interleukin-1α on the expression of apolipoprotein M in HepG2 cells显示文摘Xu N Zhang XY Dong X 2002Biochem Biophys Res Commun2002,292,4:1
18EPR parameters and superposition model analysis for trigonal Dy^3+ O2^- center in CaF2 crystal 显示文摘Zheng W C Dong H N Wu S Y 2004Physica B2004,334,:1
19Impacts of September 21, 1999 Chi- Chi earthquake on the characteristics of gully-type debris flows in central Taiwan显示文摘I Liu C N Huang H F Dong J J 2008Nature Hazards2008,47,3:1
20Marker vaccine strategies and candidate CSFV marker vaccines显示文摘Dong X N Chen Y H 2006Vaccine2006,25,:1
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