Abstract
Administration of oral glutathione (GSH) increases hepatic GSH levels in fasted rats, in mice treated with GSH depletors such as diethylmaleate and in mice treated with high doses of paracetamol. An increase in hepatic GSH levels after administration of oral GSH does not occur in animals treated with buthionine suphoximine, an inhibitor of GSH synthesis. Administration of oral GSH leads to an increase in the concentration of L-cysteine, a precursor of GSH, in portal blood plasma. Oral administration of L-methio-nine to fasted rats produced a significant decrease of hepatic ATP, but not in fed rats. Administration of N-acetyl-cysteine or GSH did not affect the hepatic ATP levels. The results show that the oral intake of GSH is a safe and efficient form of administration of its constituent amino acids in cases when GSH synthesis is required to replete hepatic GSH levels.
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© 1990 ESCOM Science Publishers B.V.
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Viña, J.R., Pallardo, F.V., Furukawa, T., Viña, J. (1990). Oral glutathione increases hepatic glutathione and prevents acetaminophen toxicity. In: Lubec, G., Rosenthal, G.A. (eds) Amino Acids. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2262-7_87
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DOI: https://doi.org/10.1007/978-94-011-2262-7_87
Publisher Name: Springer, Dordrecht
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