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American Journal of Clinical Nutrition, Vol 65, 36-40, Copyright © 1997 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Postprandial changes in plasma and serum viscosity and plasma lipids and lipoproteins after an acute test meal

CC Tangney, JM Hafner, BD McQuiston, AJ Domas and RS Rosenson
Department of Clinical Nutrition, Rush Heart Institute, Rush- Presbyterian-St Lukes Medical Center, Chicago, IL 60612, USA. ctangney@rpslmc.edu

The influence of a fat-rich test meal on postprandial changes in plasma viscosity and serum viscosity was assessed in 12 normolipidemic adults. After a 12-14-h fast, volunteers (five men and seven women aged 23-50 y) were challenged with a test milk shake containing 50 g fat/m2 body surface area (BSA). Plasma viscosity, serum viscosity, and plasma lipids and lipoproteins were assessed at 0, 2, 3, 4, and 6 h. Viscosity values were determined by using a Mettler Contraves LS-40 rotational microviscometer. Postprandial changes in the study variables were assessed by area under the curve and included triacylglycerols (2.02 mmol/L), plasma viscosity (-0.10 mPa.s), and serum viscosity (-0.01 mPa.s). Peak plasma triacylglycerol concentrations were significantly greater than those observed at baseline (P = 0.0022). There were no significant changes in any other variable when fasting and peak values were compared. Peak plasma viscosity increased in three and decreased in two subjects with no changes in the remaining seven subjects. Changes in peak plasma viscosity ranged from -7% to 7% with similar changes for serum viscosity, from -8% to 10%, and a slightly greater range for plasma fibrinogen, -16% to 10%. In this cohort of normotriacylglycerolemic subjects, there were no significant postprandial changes in plasma viscosity or serum viscosity.


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R. S. Rosenson, D. A. Wolff, A. L. Huskin, I. B. Helenowski, and A. W. Rademaker
Fenofibrate Therapy Ameliorates Fasting and Postprandial Lipoproteinemia, Oxidative Stress, and the Inflammatory Response in Subjects With Hypertriglyceridemia and the Metabolic Syndrome
Diabetes Care, August 1, 2007; 30(8): 1945 - 1951.
[Abstract] [Full Text] [PDF]


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Copyright © 1997 by The American Society for Nutrition