Formation of perthiyl free radicals in irradiated glutathione

Formation of perthiyl free radicals in irradiated glutathione The irradiation of reduced (GSH) or oxidized (GSSG) glutathione in the solid state was performed using γ-rays from 60Co or high-energy electrons from an accelerator. In GSSG, perthiyl radicals (GSS˙) were created in addition to carbon-centred radicals as seen by electron paramagnetic resonance spectroscopy. The quantity was independent of the dose rate (electrons or γ-rays) and of the presence of oxygen. In GSH, perthiyl radicals were also created, although in a smaller quantity. Among end-products in irradiated GSSG, we find GSH. Thus, sulphur functions are reduced by irradiation in the solid state. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Formation of perthiyl free radicals in irradiated glutathione

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Publisher
Brill Academic Publishers
Copyright
Copyright © 2005 by VSP
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/1568567054909041
Publisher site
See Article on Publisher Site

Abstract

The irradiation of reduced (GSH) or oxidized (GSSG) glutathione in the solid state was performed using γ-rays from 60Co or high-energy electrons from an accelerator. In GSSG, perthiyl radicals (GSS˙) were created in addition to carbon-centred radicals as seen by electron paramagnetic resonance spectroscopy. The quantity was independent of the dose rate (electrons or γ-rays) and of the presence of oxygen. In GSH, perthiyl radicals were also created, although in a smaller quantity. Among end-products in irradiated GSSG, we find GSH. Thus, sulphur functions are reduced by irradiation in the solid state.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Sep 1, 2005

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