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66篇 您的检索式:作者名="Artmann"
    题名 作者 年代 出处 被引量
1含羞草(Mimosa pudica L.)叶片匀浆悬浮液的滞后环显示文摘由于受力后叶子立即发生运动 ,含羞草是一个研究力对于生物细胞作用的良好模型。在以往的研究中 ,人们认为此种现象与受力后渗透压改变、离子通道被激活、细胞骨架的动态变化有关。该文旨在通过观察含羞草叶片和叶柄匀浆悬浮液的应力 切变率滞后环变化 ,揭示含羞草的力学性质。在用于比较的含羞草、叶下珠和猪骨骼肌匀浆悬浮液以及水 4个系统中 ,只有含羞草系统具有明显的逆时针滞后环轨迹 ,而其它的 3个系统均不存在。以上结果提示 ,在含羞草的匀浆悬浮液系统中 ,有一种或多种物质 (可能是蛋白质和细胞骨架 )在剪切应力作用过程中由颗粒状结构向网状结构转变 ,由无序结构向有序结构转变 ,由液体结构向黏弹性状态转变 ,而当力撤除以后再缓慢恢复。施永德 潘銮凤 阳飞昆 ARTMANN Gerhard Michael 2003植物生理与分子生物学学报2003,29,4:4
2Role of interleukin-1 and its antagonism of hepatic stellate cell proliferation and liver fibrosis in the Abcb4^(-/-) mouse model显示文摘AIM: To study the interleukin-1(IL-1) pathway as a therapeutic target for liver fibrosis in vitro and in vivo using the ATP-binding cassette transporter b4^(-/-)(Abcb4^(-/-)) mouse model.METHODS: Female and male Abcb4^(-/-) mice from 6 to 13 mo of age were analysed for the degree of cholestasis(liver serum tests), extent of liver fibrosis(hydroxyproline content and Sirius red staining) and tissue-specific activation of signalling pathways such as the IL-1 pathway [quantitative polymerase chain reaction(q PCR)]. For in vivo experiments, murine hepatic stellate cells(HSCs) were isolated via pronasecollagenase perfusion followed by density gradient centrifugation using female mice. Murine HSCs were stimulated with up to 1 ng/m L IL-1β with or without 2.5 μg/m L Anakinra, an IL-1 receptor antagonist, respectively. The proliferation of murine HSCs was assessed via the Brd U assay. The toxicity of Anakinra was evaluated via the fluorescein diacetate hydrolysis(FDH) assay. In vivo 8-wk-old Abcb4^(-/-) mice with an already fully established hepatic phenotype were treated with Anakinra(1 mg/kg body-weight daily intraperitoneally) or vehicle and liver injury and liver fibrosis were evaluated via serum tests, q PCR, hydroxyproline content and Sirius red staining. RESULTS: Liver fibrosis was less pronounced in males than in female Abcb4^(-/-) animals as defined by a lower hydroxyproline content(274 ± 64 μg/g vs 436 ± 80 μg/g liver, respectively; n = 13-15; P < 0.001; MannWhitney U-test) and lower m RNA expression of the profibrogenic tissue inhibitor of metalloproteinase-1(TIMP)(1 ± 0.41 vs 0.66 ± 0.33 fold, respectively; n = 13-15; P < 0.05; Mann-Whitney U-test). Reduced liver fibrosis was associated with significantly lower levels of F4/80 m RNA expression(1 ± 0.28 vs 0.71 ± 0.41 fold, respectively; n = 12-15; P < 0.05; Mann-Whitney U-test) and significantly lower IL-1β m RNA expression levels(1 ± 0.38 vs 0.44 ± 0.26 fold, respectively; n = 13-15; P < 0.001; Mann-Whitney U-test). No gender differences in the serum liver parameters [bilirubin; alanine aminotransferase(ALT); aspartate aminotransferase and alkaline phosphatase(AP)] were found. In vitro, the administration of IL-1β resulted in a significant increase in HSC proliferation [0.94 ± 0.72 arbitrary units(A.U.) in untreated controls, 1.12 ± 0.80 A.U. at an IL-1β concentration of 0.1 ng/m L and 1.18 ± 0.73 A.U. at an IL-1β concentration of 1 ng/m L in samples from n = 6 donor animals; P < 0.001; analyses of variance(ANOVA)]. Proliferation was reduced significantly by the addition of 2.5 μg/m L Anakinra(0.81 ± 0.60 A.U. in untreated controls, 0.92 ± 0.68 A.U. at an IL-1β concentration of 0.1 ng/m L, and 0.91 ± 0.69 A.U. at an IL-1β concentration of 1 ng/m L; in samples from n = 6 donor animals; P < 0.001; ANOVA) suggesting an anti-proliferative effect of this clinically approved IL-1 receptor antagonist. The FDH assay showed this dose to be non-toxic in HSCs. In vivo, Anakinra had no effect on the hepatic hydroxyprolinecontent, liver serum tests(ALT and AP) and profibrotic(collagen 1α1, collagen 1α2, transforming growth factor-β, and TIMP-1) and anti-fibrotic [matrix metalloproteinase 2(MMP2), MMP9 and MMP13 ] gene expression after 4 wk of treatment. Furthermore, the hepatic IL-1β and F4/80 m RNA expression levels were unaffected by Anakinra treatment.CONCLUSION: IL-1β expression is associated with the degree of liver fibrosis in Abcb4^(-/-) mice and promotes HSC proliferation. IL-1 antagonism shows antifibrotic effects in vitro but not in Abcb4^(-/-) mice.Florian P Reiter Ralf Wimmer Lena Wottke Renate Artmann Jutta M Nagel Manuel O Carranza Doris Mayr Christian Rust Peter Fickert Michael Trauner Alexander L Gerbes Simon Hohenester Gerald U Denk 2016World Journal of Hepatology2016,8,8:3
3欧洲城市绿地在老年人护理设施中的作用显示文摘城市绿地(UGS)对城市人类福祉的重要性日益得到认可,但大部分研究只针对公园、社区花园、城市森林等绿地,而缺乏对不同人群的城市绿地需求与使用情况的考虑,也未能将城市绿地与社会基础设施联系起来。老龄化已成为目前全球性的人口发展趋势。已有研究发现,到城市绿地的良好可达性对于居住在绿地周围步行距离中的老人而言具有正面的健康影响,并且可以增加他们的寿命。ARTMANN M CHEN X IOJA C 2017城市规划学刊2017,,5:3
4精明增长与绿色基础设施如何相互支持:紧凑绿色城市的概念框架显示文摘紧凑型城市被规划师和研究者认为是更可持续发展的城市形态。然而,紧凑城市的局限性之一在于绿地率较低,而这将危害城市生态系统服务的充足供应。本文试图整合以紧凑型城市形态为特征的精明增长以及以多尺度绿色空间网络为特征的绿色基础设施,从而系统性地提出紧凑绿色城市(compact and green cities)的概念框架。ARTMANN M KOHLER M MEINEL G 2018城市规划学刊2018,,1:3
5GLUT1 expression is increased in hepatocellular carcinoma and promoters tumori genesis显示文摘Amann T Maegdefrau U H artmann A 2009Am J Pathol2009,174,4:1
6Effects of selenium supplementation on antioxidant defense and glucose homeostasis in experimental diabetes mellitus显示文摘Erbayraktar Z Yilmaz 0 Artmann AT 0,,03:1
7Berechnung der seitenversetzung des totalre fle- ktierten strahles显示文摘Artmann K 1948Ann Phys1948,437,:1
8Bereehnung der Seitenversetzung des totalreflektierten Strahles 显示文摘Artmann K 1948Annalen der Physik1948,437,2:1
9Experimental in- vestigation of heat transfer during night - time ventilation显示文摘Artmann N Jensen R L Manz H 2010Energy and Buildings2010,,42:1
10Humanization health at emer- gency service in a public hospital :comparison on social representation of professional before and after training 显示文摘Andrade MA Artmann E Trindade ZA 2011Cien Saude Colet2011,16,1:1
11Berechnung der seitenversetzung des total reflektierten strahles 显示文摘Artmann K 1948Ann d Phys1948,6,2:1
12Berechnung der seitenversetzung des totalre(a)ektierten strahles显示文摘Artmann K 0,,:1
13Effects of selenium supplementation on antioxidant defense and glucose homeostasis in experimental diabetes mellitus显示文摘ERBAYRAKTAR Z YILMAZ O ARTMANN A T 2007Biol Trace Elem Res2007,118,3:1
14Parameter study on performance of building cooling by night-time ventilation 显示文摘N Artmann H Manz P Heiselberg 2008Renewable Energy2008,33,12:1
15Dual energy CT-a new perspective in the diagnosis of gout显示文摘Artmann A Ratzenbock M Noszian I 2010RoFo2010,182,3:1
16Change of RBC-stiffness and Relaxation-time in Diabetic and Non-diabetic Poad Patients During Treatment with Ginkgo Biloba Extract EGB 761 显示文摘ARTMANN G LANDSMANN B LI L A 1995B iorheology1995,32,:1
17A modified Casson equation to characterize blood rheology for hypertension显示文摘Shi YD Artmann G Agosti R 1998Clin Hemorheol Microcirc1998,19,2:1
18Bactericidal effects of plasma-generated cluster ions 显示文摘Digel I Temiz Artmann A Nishikawa K 2005Med BiolEng Comput2005,43,6:1
19Functianalized inorganic/organic nanocompesites as new basic raw materials for adhesives and sealants 显示文摘Bauer F Glasel H J artmann E 2004Int J Adhesion & Adhesives2004,,24:1
201,25-(OH) 2 -vitamin D 3 prevents activation of hepatic stellate cells in vitro and ameliorates inflammatory liver damage but not fibrosis in the Abcb4 ?/? model显示文摘Florian P. Reiter Simon Hohenester Jutta M. Nagel Ralf Wimmer Renate Artmann Lena Wottke Marie-Christine Makeschin Doris Mayr Christian Rust Michael Trauner Gerald U. Denk 2015Biochemical and Biophysical Research Communicatio2015,,2:1
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