1994
DOI: 10.1111/j.1432-1033.1994.00557.x
|View full text |Cite
|
Sign up to set email alerts
|

The capacity of reducing‐equivalent shuttles limits glycolysis during ethanol oxidation

Abstract: The inhibition of glycolysis during ethanol oxidation has been examined in isolated hepatocytes from fasted rats. Glycolytic flux was measured by determining the rate of release of tritium from [6-3H]glucose. During ethanol oxidation, the rate of glycolysis was inhibited 80% in freshly prepared hepatocytes, in which shuttle intermediates are depleted, but was depressed only about 20% in the presence of asparagine, a condition under which activity of the malate/aspartate shuttle was restored to normal levels. T… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

2
20
0

Year Published

1995
1995
2023
2023

Publication Types

Select...
7
1

Relationship

1
7

Authors

Journals

citations
Cited by 28 publications
(22 citation statements)
references
References 36 publications
2
20
0
Order By: Relevance
“…By investigating the effects of Aralar1 overexpression in INS-1E cells, our data show a direct relationship between changes in NAD(P)H levels, mitochondrial activation, and insulin secretion. Activity of NADH shuttles may limit glycolysis (29,30). Here, Aralar1 overexpression enhanced glucose evoked NAD(P)H generation, electron transport chain activity, and ATP generation, correlating with elevation of glucose oxidation, thereby demonstrating increased mitochondrial metabolism.…”
Section: Discussionmentioning
confidence: 99%
“…By investigating the effects of Aralar1 overexpression in INS-1E cells, our data show a direct relationship between changes in NAD(P)H levels, mitochondrial activation, and insulin secretion. Activity of NADH shuttles may limit glycolysis (29,30). Here, Aralar1 overexpression enhanced glucose evoked NAD(P)H generation, electron transport chain activity, and ATP generation, correlating with elevation of glucose oxidation, thereby demonstrating increased mitochondrial metabolism.…”
Section: Discussionmentioning
confidence: 99%
“…AOA, an inhibitor of various aminotransferases, is widely used to block the malate-aspartate shuttle in islets and other tissues (17,29,41,42). At the concentration of 5 mM, AOA inhibed glucose-induced insulin secretion by 50 -60% in normal rat islets (17,29).…”
Section: Discussionmentioning
confidence: 99%
“…It is well established that acute and chronic ethanol consumption increases the malate-aspartate shuttle in rat liver [10]. The capacity of the malate-aspartate shuttle to function as a key factor limiting the rate of glycolysis during ethanol oxidation was also demonstrated [11]. Some reports showed the increases of MDH activities in myocardium [12], liver, and blood [13] of ethanoltreated rats.…”
Section: Introductionmentioning
confidence: 95%