Changes in the level of S-(1,2-dicarboxyethyl)glutathione (DCE-GS) with time were determined during regeneration of rat liver after partial hepatectomy. The DCE-GS level increased in regenerating rat liver, reaching a maximum level (4.7-fold) on day 2 and reverted to the normal level in 1 week. During the liver regeneration process, the activity of DCE-GS-synthesizing enzyme in the liver retained its control level, while the level of glutathione--a substrate of the enzyme in the liver--fluctuated in parallel with that of DCE-GS.
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