QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Purchase Article View Shopping Cart Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Lai, H.-C. Articles by Ney, D. M. Search for Related Content PubMed PubMed Citation Articles by Lai, H.-C. Articles by Ney, D. M.

Corn Oil, Palm Oil and Butterfat Fractions Affect Postprandial Lipemia and Lipoprotein Lipase in Meal-Fed Rats^1,2,

Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI 53706

Our objective was to investigate the time course of postprandial lipemia and lipolytic activity in male Sprague-Dawley rats trained to eat meals containing butterfat fractions, palm oil or corn oil. Baseline and postprandial blood samples were obtained via a carotid cannula in rats fed the experimental diets for 4 wk. Rats fed saturated fats compared with corn oil showed a significantly greater peak increase in postprandial triacylglycerol concentrations. Corn oil ingestion resulted in significantly lower concentrations of cholesterol and triacylglycerol in plasma and significantly less triacylglycerol accumulation (millimoles per liter per 24 h) compared with ingestion of saturated fats. Postheparin plasma lipoprotein lipase activity and plasma insulin concentration were generally greater with ingestion of corn oil compared with palm oil or butterfat. Palm oil ingestion resulted in a biphasic plasma triacylglycerol response curve and greater postheparin plasma lipoprotein lipase activity compared with butterfat ingestion, suggesting differential effects of saturated fats on postprandial lipemia. Our results indicate that greater postprandial lipemia with ingestion of saturated fats compared with corn oil may be due in part to slower plasma triacylglycerol clearance.

KEY WORDS: • butterfat • cholesterol • rats • triacylglycerol • lipoprotein lipase

¹ Supported by a grant from the Wisconsin Milk Marketing Board (no. 92-9) and by funds from the College of Agricultural and Life Sciences, University of Wisconsin-Madison, no. 3096.

² The costs of publication of this article were defrayed in part by the payment of page charges. This article must therefore be hereby marked "advertisement" in accordance with 18 USC section 1734 solely to indicate this fact.

³ To whom correspondence and reprint requests should be addressed.

Manuscript received 6 September 1994. Revision accepted 20 December 1994.

This article has been cited by other articles:

				A. Viveros, L. T. Ortiz, M. L. Rodriguez, A. Rebole, C. Alzueta, I. Arija, C. Centeno, and A. Brenes Interaction of dietary high-oleic-acid sunflower hulls and different fat sources in broiler chickens Poult. Sci., January 1, 2009; 88(1): 141 - 151. [Abstract] [Full Text] [PDF]

				M.-P. Ruffin, T. Adage, F. Kuipers, J. H. Strubbe, A. J. W. Scheurink, and G. van Dijk Feeding and temperature responses to intravenous leptin infusion are differential predictors of obesity in rats Am J Physiol Regulatory Integrative Comp Physiol, April 1, 2004; 286(4): R756 - R763. [Abstract] [Full Text] [PDF]