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Rapid Changes in Glucose Metabolism Following the Administration of Ethionine: Its Role in Regulating Hepatic Protein Synthesis

Departments of Pathology and Biochemistry, Queen's University, Kingston, Ontario, Canada K7L 3N6

Robert Kisilevsky

Departments of Pathology and Biochemistry, Queen's University, Kingston, Ontario, Canada K7L 3N6

The relationship between the changes in portal glucagon, insulin, glucose, and hepatic protein synthesis were investigated during ethionine intoxication. There was a 50% decrease in blood glucose, a seven-fold increase in portal glucagon and a 90% increase in portal insulin, all of which coincided temporally with the inhibition of hepatic protein synthesis. When reversal of ethionine intoxication was initiated with adenine it simultaneously restored blood glucose, insulin, glucagon, and protein synthesis. Protein synthesis could not be adequately restored by glucose, but in this case hepatic ATP levels did not increase. In addition, glucose given by stomach tube prior to ethionine did not prevent the action of ethionine, though it did maintain plasma glucose levels and prevented the decrease in plasma insulin and increase in plasma glucagon. These results show that in vivo regulation of hepatic protein synthesis during ethionine intoxication is not likely to be mediated by portal insulin, glucose, and glucagon.

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Toxicologic Pathology, Vol. 14, No. 4, 424-429 (1986)
DOI: 10.1177/019262338601400407


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This Article Abstract Free Full Text (Free PDF) Free Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Lyon, A. W. Articles by Kisilevsky, R. Search for Related Content PubMed PubMed Citation Articles by Lyon, A. W. Articles by Kisilevsky, R. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB (L)-ETHIONINE GLUCAGON GLUCOSE Social Bookmarking                         What's this?