Title
Dietary medium chain fatty acid supplementation leads to reduced VLDL lipolysis and uptake rates in comparison to linoleic acid supplementation
Author
van Schalkwijk, D.B.
Pasman, W.J.
Hendriks, H.F.J.
Verheij, E.R.
Rubingh, C.M.
van Bochove, K.
Vaes, W.H.J.
Adiels, M.
Freidig, A.P.
de Graaf, A.A.
Publication year
2014
Abstract
Dietary medium chain fatty acids (MCFA) and linoleic acid follow different metabolic routes, and linoleic acid activates PPAR receptors. Both these mechanisms may modify lipoprotein and fatty acid metabolism after dietary intervention. Our objective was to investigate how dietary MCFA and linoleic acid supplementation and body fat distribution affect the fasting lipoprotein subclass profile, lipoprotein kinetics, and postprandial fatty acid kinetics. In a randomized double blind cross-over trial, 12 male subjects (age 5167 years; BMI 28.560.8 kg/m2), were divided into 2 groups according to waist-hip ratio. They were supplemented with 60 grams/day MCFA (mainly C8:0, C10:0) or linoleic acid for three weeks, with a washout period of six weeks in between. Lipoprotein subclasses were measured using HPLC. Lipoprotein and fatty acid metabolism were studied using a combination of several stable isotope tracers. Lipoprotein and tracer data were analyzed using computational modeling. Lipoprotein subclass concentrations in the VLDL and LDL range were significantly higher after MCFA than after linoleic acid intervention. In addition, LDL subclass concentrations were higher in lower body obese individuals. Differences in VLDL metabolism were found to occur in lipoprotein lipolysis and uptake, not production; MCFAs were elongated intensively, in contrast to linoleic acid. Dietary MCFA supplementation led to a less favorable lipoprotein profile than linoleic acid supplementation. These differences were not due to elevated VLDL production, but rather to lower lipolysis and uptake rates.
Subject
ELSS - Earth, Life and Social Sciences
Life
Healthy Living
Food and Nutrition
Nutrition
RAPID - Risk Assessment Products in Development MSB - Microbiology and Systems Biology
To reference this document use:
http://resolver.tudelft.nl/uuid:b6c8231b-6961-4302-9a34-a2241ea2017f
DOI
https://doi.org/10.1371/journal.pone.0100376
TNO identifier
509989
Source
PLoS ONE, 9 (9), 14p.
Document type
article