Lutein, a dietary carotenoid, is a well known antioxidant. The major source of this carotenoid in humans is diet. We report here the presence of lutein, a dietary carotenoid in several guinea pig tissues (in decreasing order: liver>spleen>lung>>testis>kidney>plasma>eye but not in white adipose tissue). The presence of lutein in lung and other tissues may be significant in term of its antioxidant capacity of these organs.
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Skin carotenoids can be measured non-invasively using spectroscopy methods to provide a biomarker of total dietary carotenoid and carotenoid-rich fruit and vegetable intake. However, the degree to which skin carotenoid biomarkers reflect intakes of specific carotenoids must be determined for specific devices. Previously, findings were mixed regarding the correlation between reflection spectroscopy (RS)-assessed skin carotenoids and individual plasma carotenoid concentrations.
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Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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- Spontaneous abortion (SA) is a common complication in pregnancy influenced by genetic factors and maternal nutrition.
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Department of Nephrology, Institute of Kidney Diseases, West China Hospital, Sichuan University, 37 Guoxue Alley, Chengdu, 610041, China.
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