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  • Al2O3-SiO2-Li2O gels  (1)
  • Glutathione reductase  (1)
  • Key words Corpus callosum  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Glutathione and its related enzymes in the small intestinal mucosa of rats: Effects of starvation and diet (1989)
    Springer
    Research in experimental medicine 189 (1989), S. 195-204 
    Details
    ISSN: 1433-8580
    Keywords: Glutathione ; Glutathione S-transferase ; Glutathione reductase ; Glutathione peroxidase ; y-Glutamyltranspeptidase ; Lipid peroxide ; Intestinal mucosa
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Starvation for 24h causes a striking fall in glutathione content from 3.19 ± 0.27 to 1.88 ± 0.14 (X ± SEM) µmol/g tissue and of GGT activity from 31.75 ± 4.17 to 19.49 ± 3.13 (X ± SEM) nmol/min/mg protein in the homogenate from whole mucosa of the upper small intestinal segments. This was associated with a significant increase in GSH-Px activity and the content of lipid peroxides (measured by the thiobarbituric assay). On semi-synthetic iron-supplemented diet the activities of GSH-T and GGT were significantly decreased as compared with crude diet. On semisynthetic irondepleted diet GSH-T and GGT activities were further depressed, but this was accompanied with an additional depression of GSH, glutathione reductase (GSSG-R), and glutathione peroxidase (GSH-Px) activities and lipid peroxide concentrations. Food deprivation significantly lowers the mucosal GSH-content and could lead to a destabilization of this system presumably by increased oxidative stress. As compared to normal “crude” diet, semisynthetic diets and oral iron depletion have been shown to cause a depression of the intestinal GSH system. As a consequence of these effects, the resistance of the small intestinal mucosa toward exogeneous dietary toxins might be reduced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01852168
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Dysgenesis of the corpus callosum and associated telencephalic anomalies: MRI (1997)
    Springer
    Neuroradiology 39 (1997), S. 302-310 
    Details
    ISSN: 1432-1920
    Keywords: Key words Corpus callosum ; dysgenesis ; Developmental anomalies ; Probst's bundles ; Anterior commissure ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We analysed the MRI findings in 23 patients with callosal dysgenesis in relation to their associated telencephalic anomalies to investigate the morphological significance of the development of Probst's bundles and the anterior commissure in congenital callosal dysgenesis. We classified callosal dysgenesis into three types: total defect (9 patients), partial defect (7) and hypoplasia (7). Associated anomalies were observed in 15 patients, including migration disorder (8 patients), micrencephaly (5), and lipoma (2). The remaining 8 patients had no associated anomalies. Probst's bundles were not identified in 4 patients with a severe migration disorder. An absent or hypoplastic anterior commissure was observed in 9 of the 16 patients with callosal defect and all 7 of those with callosal hypoplasia. Colpocephaly and keyhole dilatation of the temporal horns were seen in 16 and 21 patients, respectively. Callosal dysgenesis may occur not only through a defect in the callosal anlage, but also from impaired growth of axonal fibres projecting from the cerebral isocortex. Therefore, associated telencephalic anomalies may be responsible for additional features in callosal dysgenesis. Consequently, identification of Probst's bundles and the anterior commissure may be important when assessing cortical development in patients with callosal dysgenesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050414
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Sol-gel electrolytes in lithium batteries (1994)
    Springer
    Journal of sol gel science and technology 2 (1994), S. 611-613 
    Details
    ISSN: 1573-4846
    Keywords: solid electrolytes ; lithium batteries ; Al2O3-SiO2-Li2O gels ; conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract This paper presents the results of the thermodynamic calculations of material compatibility along with the results of the experimental studies using lithium aluminosilicate gel electrolyte in lithium batteries. Initially, there were problems with gel monoliths and porous cathodes in the Li solid electrolyte batteries. Better results were obtained through the direct application of thin films of the lithium aluminosilicate gels to the surfaces of dense, sintered oxide cathodes. It was important to maintain extremely low moisture and oxygen levels in the dry glove box during the assembly and testing of the battery, especially when it came to achieving good contact between the sol-gel electrolyte and the lithium metal. Suggestions are given about procedures for further development of the sol-gel electrolyte batteries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486319
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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