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Ethanol stimulates triglyceride synthesis by the intestine
Science (New York, N.Y.)
|December 17, 1971
Summary
Ethanol consumption, both acute and chronic, significantly boosts intestinal triglyceride synthesis. This alcohol-induced effect on fat metabolism may contribute to alcoholic hyperlipemia and fatty liver disease.
Area of Science:
- Biochemistry
- Gastroenterology
- Metabolism
Background:
- Alcohol consumption is linked to metabolic disorders like hyperlipemia and fatty liver.
- The intestine plays a role in lipid metabolism and absorption.
Purpose of the Study:
- To investigate the effect of ethanol on intestinal triglyceride synthesis.
- To explore the potential role of intestinal lipid synthesis in alcohol-related metabolic diseases.
Main Methods:
- Measuring [1-(14)C]palmitate incorporation into triglycerides in intestinal tissue and microsomes.
- Administering ethanol acutely and chronically via diet in vivo.
- Conducting in vitro experiments with ethanol and pyrazole (alcohol dehydrogenase inhibitor).
Main Results:
- Both acute and chronic ethanol administration increased intestinal triglyceride synthesis.
- In vitro ethanol exposure also significantly enhanced triglyceride synthesis.
- Pyrazole inhibited the stimulatory effect of ethanol, suggesting alcohol dehydrogenase involvement.
Conclusions:
- Ethanol stimulates intestinal triglyceride synthesis.
- This increased synthesis may contribute to alcoholic hyperlipemia and fatty liver.
- The intestine is a potential site for alcohol's metabolic effects on lipids.