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  • 1
    Electronic Resource
    Electronic Resource
    Degradation of Amyloid A Precursor Protein SAA by Macrophage Cell Lines Obtained from Amyloid Resistant and Susceptible Strains of Mice (1997)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 45 (1997), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Reactive AA amyloidosis can be induced in mice in a model of sustained inflammation following daily casein subcutaneous injections. However, the development of AA amyloidosis is known to vary in different strains of mice. The C57BL/6 strain is susceptible to the development of amyloidosis while the A/J strain is resistant. The degradation of purified serum amyloid A (SAA) protein by human monocytes as well as by mouse macrophages has been shown. The resistance/susceptibility of different mouse strains to the development of systemic amyloidosis may therefore be related to a difference in the ability of macrophages to degrade SAA. The authors have used bone marrow-derived macrophage cell lines obtained from susceptible C57BL/6 (ANA-1) and resistant A/J (A/J 10) mouse strains to compare their ability to degrade HDL-SAA in vitro. Cells were incubated with HDL-SAA for up to 72 h and the culture medium was analysed by SDS-PAGE to determine the rate of SAA degradation by the macrophages. The A/J 10 cells (resistant) were found to initiate a constant HDL-SAA degradation promptly whereas ANA-1 cells (susceptible) showed an intermittent block in the degradation of the precursor. Activation of macrophages by lipopolysaccharide (LPS) or interferon-γ (IFN-γ) hampered the precursor degradation suggesting that the activation process may favour extracellular accumulation of the precursor leading to a partial degradation and fibril formation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3083.1997.d01-408.x
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  • 2
    Electronic Resource
    Electronic Resource
    Analysis of infrared reflectivity of conducting polymers: example of camphor-sulphonic-acid-doped polyaniline (1999)
    Springer
    The European physical journal 12 (1999), S. 367-372 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 78.30.Jw Organic compounds, polymers - 72.80.Le Polymers; organic compounds (including organic semiconductors) - 71.38.+i Polarons and electron-phonon interactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The reflectivity spectrum of a polyaniline CSA-doped in presence of m-cresol has been measured over the wide wavenumber range of 15- 9 000 cm -1 (0.002-1.1 eV) at room temperature. Experimental data compare well with similar experiments performed by another group. The conductivity spectrum of this conducting polymer has been deduced from the reflectivity spectrum by means of two methods, Kramers-Kronig transformation and best fit of an “extended Drude” model to the reflectivity spectrum. Whereas the deviation from Drude behavior was interpreted in terms of Anderson localization or by inhomogeneous disorder by other groups, it is shown here that a different model developed for conducting oxides that also exhibit non-Drude behavior, applies very well to this example of conducting polymer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510051017
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  • 3
    Electronic Resource
    Electronic Resource
    Dynamics of the proton transport in the Cs5H3(SO4)4 · xH2O superionic conductor (PCHS) (1996)
    Springer
    Ionics 2 (1996), S. 235-240 
    Details
    ISSN: 1862-0760
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The article summarizes selected properties of Cs5H3(SO4)4 · xH2O related to the proton transport. The dynamics of the proton transport in all known phases is discussed and a consistent microscopic model of the transition into the glassy state is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02376028
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