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  • Acari  (1)
  • Budd-Chiari syndrome, diagnosis  (1)
  • CHO cells  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Hepatic vein occlusion: Morphologic features on computed tomography and ultrasonography (1986)
    Springer
    Abdominal imaging 11 (1986), S. 305-311 
    Details
    ISSN: 1432-0509
    Keywords: Hepatic veins, thrombosis ; Budd-Chiari syndrome, diagnosis ; Hepatic veins, CT and sonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Hepatic vein occlusion causes morphologic changes that can be demonstrated by computed tomography (CT) and ultrasound. In this study the imaging findings of acute, subacute, and chronic occlusion of the hepatic veins were analyzed retrospectively in 9 patients and correlated with the histopathologic changes. The CT findings were focal or scattered hypodense parenchymal lesions of the liver before and a patchy enhancement after intravenous bolus injection of contrast material. In none of the cases could the hepatic veins be identified. Hepatomegaly with relative enlargement of the caudate lobe was almost always observed. Ultrasonography demonstrated solid material within the major hepatic veins, intrahepatic venous collaterals, and focal parenchymal lesions, which varied with the stage of the disease: a hypoechogenic area was observed in acute hepatic vein thombosis with subsequent hemorrhagic infarction; hyperechogenic lesions corresponded with fibrotic zones in chronic disease. Ascites was shown by both methods in all patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02035097
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Importance of lichen secondary products in food choice of two oribatid mites (Acari) in an alpine meadow ecosystem (1987)
    Springer
    Journal of chemical ecology 13 (1987), S. 363-369 
    Details
    ISSN: 1573-1561
    Keywords: Lichen ; herbivores ; secondary products ; oribatid mites ; Acari ; food choice ; Cetraria islandica ; Cladonia symphycarpa ; Fuscozetes setosus ; Carabodes intermedius
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract In an alpine meadow ecosystem in the Swiss National Park, the lichensCetraria islandica andCladonia symphycarpa occur in small vegetation patches dominated byCarexfirma (Cyperaceae) andSesleria coerulea (Gramineae). Laboratory food-choice experiments with two oribatid mitesFuscozetes setosus andCarabodes intermedius show that the thallus structure and secondary products ofC. islandica are repellent factors against herbivorous mites. In contrast, secondary products ofC. symphycarpa may be an attractant for the mites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01025896
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Antisense strategies for glycosylation engineering of Chinese hamster ovary (CHO) cells (1998)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 59 (1998), S. 445-450 
    Details
    ISSN: 0006-3592
    Keywords: CHO cells ; glycosylation engineering ; antisense ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Novel glycoproteins, inaccessible by other techniques, can be obtained by metabolic engineering of the oligosaccharide biosynthesis pathway. Furthermore, alteration of cell-surface oligosaccharides can change the properties of receptors involved in cell-cell adhesion. Sialyl Lewis X (sLex) is a cell-surface oligosaccharide determinant which is specifically expressed on granulocytes and monocytes and which interacts with selectins to influence leukocyte trafficking, thrombosis, inflammation, and cancer. Antisense technology targeting fucosyltransferase VI (Fuc-TVI), an enzyme necessary for the synthesis of the sLex in engineered Chinese hamster ovary (CHO) cells, has reduced Fuc-TVI activity, sLex synthesis, and adhesion to endothelial cells. Antisense methodology to reduce targeted activity in oligosaccharide biosynthesis or other pathways is an important addition to CHO cell metabolic engineering capabilities. © 1998 John Wiley & Sons, Inc. Biotechnol Bioeng 59:445-450, 1998.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
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