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  • 1
    Online Resource
    Online Resource
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Keywords: Floodplains-Europe, Central. ; Riparian ecology-Europe, Central. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (166 pages)
    Edition: 1st ed.
    ISBN: 9783662554555
    DDC: 570
    Language: German
    Note: Intro -- Vorwort -- Inhaltsverzeichnis -- 1 Grundwasserlebensräume in Auenwäldern -- 2 Quellen in Auenlandschaften -- 3 Geomorphologie von Flussläufen -- 4 Böden in Auenwäldern -- 5 Flussbegleitende Moore und Sümpfe -- 6 Hydromorphologie in Auenbiotopen -- 7 Paläoökologie der Auenbiotope -- 8 Pflanzengesellschaften in Auenbiotopen -- 9 Entomofauna in Auenbiotopen -- 10 Auentypische Mollusken und Krebstiere -- 11 Ichthyofauna der Auengewässer -- 12 Herpetofauna in Auen -- 13 Auentypische Avifauna -- 14 Säugetierfauna in Auenwäldern -- 15 Auenrevitalisierung -- Serviceteil -- Glossar auenökologischer Fachbegriffe -- Stichwortverzeichnis.
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  • 2
    Keywords: Forschungsbericht
    Description / Table of Contents: Zweiphasensytem, attenuirte Salmonellen, DNA-Vektor, genetische Vakzinierung, T7-Polymerase, Gen E
    Type of Medium: Online Resource
    Pages: Online-Ressource (12 p., 142 Kb.)
    Edition: [Elektronische Ressource]
    Language: German
    Note: Contract BMBF 01 GE 9630 1. - Differences between the printed and electronic version of the document are possible. - German abstract under title: Improvement of the T7 expression system by the use of T7 lysozyme. - nIndex p. 7 - 11 , Also available as printed version , Systemvoraussetzungen: Acrobat Reader.
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science, Ltd
    Molecular microbiology 40 (2001), S. 0 
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Helicobacter pylori has been identified as the major aetiological agent in the development of chronic gastritis and duodenal ulcer, and it plays a role in the development of gastric carcinoma. Attachment of H. pylori to gastric epithelial cells leads to nuclear and cytoskeletal responses in host cells. Here, we show that Rho GTPases Rac1 and Cdc42 were activated during infection of gastric epithelial cells with either the wild-type H. pylori or the mutant strain cagA. In contrast, no activation of Rho GTPases was observed when H. pylori mutant strains (virB7 and PAI) were used that lack functional type IV secretion apparatus. We demonstrated that H. pylori-induced activation of Rac1 and Cdc42 led to the activation of p21-activated kinase 1 (PAK1) mediating nuclear responses, whereas the mutant strain PAI had no effect on PAK1 activity. Activation of Rac1, Cdc42 and PAK1 represented a very early event in colonization of gastric epithelial cells by H. pylori. Rac1 and Cdc42 were recruited to the sites of bacterial attachment and are therefore probably involved in the regulation of local and overall cytoskeleton rearrangement in host cells. Finally, actin rearrangement and epithelial cell motility in H. pylori infection depended on the presence of a functional type IV secretion system encoded by the cag pathogenicity island (PAI).
    Type of Medium: Electronic Resource
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