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

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 (BS...

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Bibliographic Details
Published in:The American journal of clinical nutrition 1997-01, Vol.65 (1), p.36-40
Main Authors: Tangney, CC, Hafner, JM, McQuiston, BD, Domas, AJ, Rosenson, RS
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Blood Viscosity
Diet
Feeding. Feeding behavior
Female
Fundamental and applied biological sciences. Psychology
Humans
Lipids
Lipids - blood
Lipoproteins - blood
Male
Middle Aged
Plasma
Postprandial Period - physiology
Time Factors
Triglycerides - blood
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Viscosity
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Summary: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.
ISSN:0002-9165
1938-3207
DOI:10.1093/ajcn/65.1.36