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Müller, K. ; Wiegrebe, Wolfgang ; Younes, Maged

Dithranol, Active Oxygen Species and Lipid Peroxidation in vivo

Müller, K., Wiegrebe, Wolfgang and Younes, Maged (1987) Dithranol, Active Oxygen Species and Lipid Peroxidation in vivo. Archiv der Pharmazie 320, pp. 59-66.

Date of publication of this fulltext: 07 Jul 2010 05:05
Article
DOI to cite this document: 10.5283/epub.15666


Abstract

At pH 7.8 the dithranol anion 1a is oxidized in the dark to yield the bianthrone 3 besides dithranol brown, whilst 02 is reduced to 02.- and H202. 02.- was detected by the reduction of nitroblue-tetrazolium (NBT, 4). The formation of the formazan 5 was inhibited by superoxide dismutase (SOD). Exclusion of 02 and addition of SOD reveal a direct electron transfer from 1a to 4 and to cytochrome c ...

At pH 7.8 the dithranol anion 1a is oxidized in the dark to yield the bianthrone 3 besides dithranol brown,
whilst 02 is reduced to 02.- and H202. 02.- was detected by the reduction of nitroblue-tetrazolium
(NBT, 4). The formation of the formazan 5 was inhibited by superoxide dismutase (SOD). Exclusion of
02 and addition of SOD reveal a direct electron transfer from 1a to 4 and to cytochrome c which was not
affected in the presence of SOD. - In vivo experiments indicate a low rate of lipid peroxidation which
was determined on the basis of ethane exhalation.

Dithranolanion (1a) wird bei pH 7.8 unter Lichtausschluß zum Bianthron 3 und zu Dithranolbraun oxidiert,
während 02 zu 02.- und H202 reduziert wird. 02.- wurde durch Reduktion von Nitrotetrazoliumblau
(NBT, 4) nachgewiesen, die Bildung des Formazans 5 wurde durch Superoxid Dismutase (SOD) gehemmt.
02-Ausschluß und Zugabe von SOD weisen einen direkten Elektronentransfer von la auf 4 bzw.
Cytochrom c nach, der in Gegenwart von SOD nicht beeinträchtigt wurde. - In vivo-Experimente weisen
auf eine geringfügige Lipidperoxidation hin, die über die Ethanausatmung gemessen wurde.


Involved Institutions


Details

Item typeArticle
Journal or Publication TitleArchiv der Pharmazie
Publisher:John Wiley & Sons
Volume:320
Page Range:pp. 59-66
Date1987
InstitutionsChemistry and Pharmacy > Institute of Pharmacy > Alumni or Retired Professors > Prof. Wiegrebe
Dewey Decimal Classification500 Science > 540 Chemistry & allied sciences
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgUnknown
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-156661
Item ID15666

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