Abstract
1. 1. The acyl-CoA: cholesterol acyltransferase (ACAT) activity and lipid composition of intestinal microsomal membrane were investigated 6 weeks after both 50 and 75% distal small bowel resection (DSBR). 2. 2. No changes in both microsomal ACAT activity and cholesteryl ester levels were found, while microsomal non-esterified cholesterol content was increased after the surgical operation. 3. 3. The total phospholipid content of the microsomes did not change as a results of DSBR. 4. 4. The microsomal phospholipid fatty acid composition showed a significant increase in saturated fatty acids together with no changes in both total monounsaturated and total polyunsaturated fatty acids after resection. 5. 5. An increase in the levels of linoleic acid accompanied by a decrease in arachidonic acid was found in remnant intestine of resected rats.
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