Lack of correlation between the alpha-tocopherol content of plasma and LDL, but high correlations for gamma-tocopherol and carotenoids

In 59 healthy human subjects (37 male and 22 female) the concentrations of the lipid-soluble antioxidants alpha- and gamma-tocopherol, alpha- and beta-carotene, lycopene, cryptoxanthin, canthaxanthin and lutein + zeaxanthin were determined in plasma (micromoles/L) and in isolated low density lipopro...

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Bibliographic Details
Published in:Journal of lipid research 1996-09, Vol.37 (9), p.1936-1946
Main Authors: Ziouzenkova, O. (University of Graz, Graz, Austria.), Winklhofer-Roob, B.M, Puhl, H, Roob, J.M, Esterbauer, H
Format: Article
Language:English
Subjects:
Adult
Antioxidants - analysis
CAROTENOIDE
CAROTENOIDES
Carotenoids - analysis
Carotenoids - blood
Female
Humans
Lipoproteins, LDL - chemistry
Male
Middle Aged
Statistics as Topic
Vitamin E - analysis
Vitamin E - blood
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Summary:In 59 healthy human subjects (37 male and 22 female) the concentrations of the lipid-soluble antioxidants alpha- and gamma-tocopherol, alpha- and beta-carotene, lycopene, cryptoxanthin, canthaxanthin and lutein + zeaxanthin were determined in plasma (micromoles/L) and in isolated low density lipoproteins (LDL) (micromoles/mmol cholesterol). Plasma alpha-tocopherol concentrations were significantly correlated with plasma total cholesterol concentrations (r2 = 0.51, P c 0.0001) yet not with the LDL a-tocopherol content (r2 = 0.05, ns). Plasma gamma-tocopherol concentrations were weakly correlated with plasma total cholesterol (r2 = 0.12, P 0.003) and both absolute and cholesterol standardized plasma gamma-tocopherol concentrations correlated strongly with the LDL gamma-tocopherol content (r2
ISSN:0022-2275
1539-7262
DOI:10.1016/s0022-2275(20)37558-1