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Carotenoids Biodistribution to Skin
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August 30, 2016
3:01 pm
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August 26, 2016
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Once carotenoids clear the intestinal epithelial barrier and reach the systemic circulation via lymphatics, deposition occurs in hepatic and extrahepatic tissues including skin. Carotenoids stored in hepatic tissues can also be mobilized for distribution to extrahepatic tissues in times of need. Alaluf and coworkers (Alaluf et al. 2002) have demonstrated that the yellow component of skin color, quantified
by the tristimulus chromameter, may be closely associated with carotenoid levels of the skin at various sites of the body (i.e., the back, forehead, inner forearm, and palm of the hand (Bayerl et al. 2003). Skin derived from subjects undergoing abdominoplasty suggests that apolar carotenoids (e.g., b-carotene, phytoene, lycopene) and their isomers constitute approximately 70% of the total pool; xanthophylls
such as lutein and zeaxanthin are present at lower concentrations (Hata et al. 2000). However, it should be noted that dietary intake based on the availability of carotenoidenriched foods and cultural traditions in different regions of the world may influence this profile

September 1, 2016
12:06 am
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August 17, 2016
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so you want to ask something or this is purely informational??

thanks by the way.

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