retinyl esters

ret·i·nyl es·ters

(ret'i-nil es'tĕrz)
One of the storage forms of retinols that can carry retinol-binding protein (RBP) from the liver to destination points throughout the body.
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References in periodicals archive ?
TRL-plasma concentrations of retinyl esters increased in response to consumption of both biofortified cassava porridge and gari, and the VA equivalencies of beta-carotene in porridge and gari were estimated as ~4.
TRL-plasma concentrations of retinyl esters increased in response to consumption of biofortified maize porridge, and the VA equivalence of beta-carotene was estimated as 6.
Effect of regular consumption of provitamin a biofortified staple crops on vitamin a status in populations in low-income countries
The diet provides retinol as retinyl esters or as provitamin carotenoids, and majority of them are stored within the hepatic lipid droplets (Blaner et al.
CRBP II binds specifically to retinol or retinal, and the CRBP II-retinal and CRBP II-retinol complexes serve as substrate not only for the conversion of retinal into retinol, but also for the conversion of retinol into retinyl esters (Suruga et al.
Expression profiles of cellular retinol-binding protein, type II (CRBP II) in Erlang mountainous chickens
Topical beta-carotene penetrated well into human and mouse epidermis and induced a 10-fold (human) and a threefold (mouse) increase of epidermal retinyl esters, which demonstrates that topical beta-carotene is converted into retinyl esters by human and mouse epidermis and thus appears as a precursor of epidermal vitamin A.
Topical beta-carotene is converted to retinyl esters in human skin ex vivo and mouse skin in vivo
Retinoids allowed for use in cosmetic products include retinol and retinyl esters (for example, retinyl palmitate).
Determination of retinol, retinyl palmitate and retinoic acid in consumer cosmetic products
In addition, the concentrations of retinyl esters after ingestion of a fat-rich meal containing vitamin A have been used as markers of the presence of apo B-48-containing RLPs of intestinal origin.
Remnant lipoproteins: measurement and clinical significance
Retinol, alpha-tocopherol, lutein/zeaxanthin, beta-cryptoxanthin, lycopene, alpha-carotene, trans-beta-carotene, and four retinyl esters in serum determined simultaneously by reversed-phase HPLC with multi-wavelength detection.
Nutritional Assessment of Adolescent Refugees -- Nepal, 1999
This can lead to a buildup in the liver of compounds called retinyl esters, which can be toxic in large amounts.
Multis: Two Is Not Twice as Nice
Anthropometric measurements and blood pressure were assessed upon enrollment, and blood samples were analyzed for the antioxidant nutrients retinol, retinyl esters, carotenoids, vitamin C and vitamin E, as well as glucose, lipids, C-reactive protein, and other factors.
Greater levels of some antioxidants associated with lower risk of metabolic syndrome
Retinol and retinyl esters are already present in skin where they account for more than 99% of the total cutaneous retinoids, but retinaldehyde and ATRA are present at the limit of detection.
Cosmetics, drugs and cosmeceuticals
Because the former determination is difficult to obtain by immunological techniques due to the identity of apolipoprotein B48 with the amino terminus of apolipoprotein B100 (a marker for lipoproteins secreted by the liver), several investigators have decided to determine retinyl esters after a fatty meal containing high doses of retinyl palmitate as a marker of chylomicrons and chylomicron remnants (10-15).
Fluorometric determination of total retinyl esters in triglyceride-rich lipoproteins. (Lipids and Lipoproteins)

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