Metal-Based Drugs

Metal-Based Drugs / 1999 / Article

Open Access

Volume 6 |Article ID 418927 | 7 pages | https://doi.org/10.1155/MBD.1999.169

Antioxidant and Prooxidant Effects of Metal Dafonates on the NADPH-Dependent Lipid Peroxidation in the Murine Hepatic Microsomal System

Received21 Apr 1999
Accepted11 May 1999

Abstract

Dafone inhibits the lipid peroxidation significantly in a concentration dependent manner. The inhibition was found to be an uncompetitive type with the inhibition constant (Ki) of 62.5μM On the other hand complexation with metal ions results in a significant reversal from antioxidant to pro-oxidant properties for the resulting complexes which are cationic and with associated halometallate anions. The nature of the potentiation in case of the ferric compound was of competitive type with activation constant (Ka) having the value 32.5μM . The neutral copper-dafonate complex, however, inhibits lipid peroxidation with increase in concentration.

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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