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  • Title: Renal and hepatic glutathione pool modifications in response to depletion treatments.
    Author: Rodríguez JV, Torres AM, Elías MM.
    Journal: Can J Physiol Pharmacol; 1987 Jan; 65(1):84-6. PubMed ID: 3567725.
    Abstract:
    In this study we examined the response of the renal and hepatic glutathione (GSH) pool in rats to drastic GSH depletion treatments. For this purpose, we used a protein-free diet, starvation, and the injection of varying doses of diethyl maleate as depleting agents. We analysed GSH levels in both kidney and liver tissue homogenates after rats were fed a protein-free diet for 2 or 7 days or starved for 1, 2, or 3 days, as well as after diethyl maleate administration in a single maximal dose or in varying doses. The results indicated that the liver GSH pool was always more labile than the kidney GSH pool. Moreover, kidney GSH levels were almost unchanged after 7 days on a protein-free diet or after 2 days of starvation, while liver showed significant changes in GSH levels. When we analysed the repletion rate, kidney had higher kinetic parameters (k = 0.148 h-1) than liver (0.097 h-1). We conclude that efficient mechanisms of maintaining GSH levels exist in the kidney and these may serve to avoid GSH diminution and hence preserve renal function during states of GSH depletion.
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