Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25278
Title: Plasma ascorbate and vitamin E levels in Hong Kong Chinese
Authors: Benzie, IFF 
Janus, ED
Strain, JJ
Keywords: Age
Alpha tocopherol
Ascorbate
CHD risk
Chinese
Diet
Vitamin C
Vitamin E
Issue Date: 1998
Source: European Journal of clinical nutrition, 1998, v. 52, no. 6, p. 447-451 How to cite?
Journal: European Journal of Clinical Nutrition 
Abstract: Objective: To describe fasting plasma total- and lipid standardised-vitamin E and ascorbate concentrations in Hong Kong Chinese subjects, and to explore age-, diet- and sex-related differences. Design: Observational study. Setting: Hong Kong. Subjects: One hundred and fifty randomly selected Chinese subjects. Interventions: Fasting plasma concentrations of ascorbate, total vitamin E and lipid standardised vitamin E (Vit E(LS), expressed as μmol vitamin E/mmol total cholesterol plus triglycerides) were measured. Results: Total vitamin E concentrations ranged from 6-53 μmol/l (mean 24; s.d. 8.5), and Vit E(LS) from 0.85-7.09 μmol/mmol (mean 3.62; s.d. 1.19). Plasma Vit E(LS) concentrations in women were higher (P = 0.02) than in men: mean (median) concentrations 3.82 (3.88) and 3.37 (3.28) μmol/mmol, respectively. Vit E(LS) concentrations in men decreased with age. Mean (s.d.) plasma ascorbate concentrations in men and women were 49.7 (14.0) and 51.6 (21.6) μmol/l respectively, and did not show the significant age- and sex- differences reportedly found in Western studies. Conclusions: The hypothesis that Hong Kong Chinese, with their low risk of CHD, might have high Vit E(LS) levels in fasting plasma is not supported by the results obtained. Moreover, results showed male-female differences and, in men, a previously unreported age-related decrease in plasma Vit E(LS) concentration which cannot be accounted for by concomitant differences in dietary intake of vitamin E alone. Results also suggest that the age- and sex- differences in plasma ascorbate seen in Western populations can be avoided by increased vitamin C intake.
URI: http://hdl.handle.net/10397/25278
ISSN: 0954-3007
DOI: 10.1038/sj.ejcn.1600586
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