Title
Intestinal beta-carotene absorption and cleavage in men: Response of beta-carotene and retinyl esters in the triglyceride-rich lipoprotein fraction after a single oral dose of beta-carotene
Author
van Vliet, T.
Schreurs, W.H.P.
van den Berg, H.
Centraal Instituut voor Voedingsonderzoek TNO
Publication year
1995
Abstract
Postprandial response curves of β-carotene and retinyl esters in a triglyceride-rich lipoprotein (TRL) fraction were evaluated as a potential measure of β-carotene uptake and cleavage. β-Carotene, retinyl ester, and triglyceride concentrations in the TRI, fraction (density < 1.006 kg/L) and plasma were measured in 10 men for 8 or 16 h after an oral dose of 15 mg β- carotene. The β-carotene response, unlike the triglyceride and retinyl ester response, can be evaluated in the TRL fraction but not in plasma. Intraindividual variations in the triglyceride-adjusted response of β- carotene and retinyl palmitate in TRL fractions were 23% and 20% and interindividual variations were 42% and 36%, respectively. A low β-carotene response was associated with a high ratio between retinyl palmitate and β- carotene responses (r = -0.56, P = 0.013). In conclusion, the measurement of β-carotene and retinyl esters in the TRL fraction after a dose of β- carotene with a vitamin A-free meal may be an appropriate method to study β- carotene uptake and cleavage
Subject
Nutrition
β-carotene
chylomicrons
interindividual variation
intraindividual variation
plasma
response
retinyl esters
second meal
single dose
triglycerides
alpha tocopherol
arachidic acid
beta carotene
lipoprotein
retinol
retinol ester
retinol palmitate
retinol stearate
sugar
triacylglycerol
yoghurt
adult
article
blood level
clinical article
clinical trial
controlled clinical trial
controlled study
dietary intake
drug degradation
human
human tissue
intestine absorption
male
oral drug administration
test meal
Administration, Oral
Adult
beta Carotene
Carotenoids
Humans
Intestinal Absorption
Intestines
Lipoproteins
Male
Triglycerides
Vitamin A
To reference this document use:
http://resolver.tudelft.nl/uuid:a88cbc71-5baf-4317-947a-0e97821788fa
TNO identifier
82574
Source
American Journal of Clinical Nutrition, 62, 110-116
Document type
article