PMID: 3768388Oct 24, 1986Paper

Gender-related effects of chronic ethanol ingestion on rat hepatic acyl-CoA:cholesterol acyltransferase

Biochimica Et Biophysica Acta
S HashimotoH Wong

Abstract

The influence of chronic ethanol ingestion on hepatic acyl-CoA: cholesterol acyltransferase activity was investigated to determine the relationship between alcohol intake and cholesterol ester accumulation. Rats were given nutritionally complete liquid diets supplemented with 6.3% ethanol or an isocaloric equivalent of dextrin-maltose for 5 weeks. During this period, the hepatic acyl-CoA: cholesterol acyltransferase activity of ethanol-fed male rats remained constant, whereas the same activity in pair-fed controls as well as chow-fed rats exhibited a 30% decrease in activity. Unlike alcohol-fed male rats, the hepatic acyl-CoA: cholesterol acyltransferase activity of female rats decreased by approximately 30% by the fifth week of ethanol ingestion. Despite the fact that the gender of the animals led to disparate levels of acyl-CoA: cholesterol acyltransferase activity in response to ethanol ingestion, similar levels of cholesteryl ester accumulation were observed. The altered levels of acyl-CoA: cholesterol acyltransferase activity caused no significant change in the cholesterol concentration, cholesterol/phospholipid ratio, phospholipid fatty acid composition, or the membrane fluidity of the hepatic microsomes. We conclude that...Continue Reading

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