VITAMIN C, HIGH DENSITY LIPOPROTEINS AND HEART DISEASE IN ELDERLY SUBJECTS

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Abstract
Plasma vitamin C, total and high density lipoprotein (HDL) cholesterol and cortisol levels were measured in a random sample of 337 elderly subjects living at home in S. Wales; measurements of relative body weight and information about fruit intake, smoking habits and symptoms of cardiovascular disease were also collected. There was a sex difference, over all age groups, in plasma vitamin C and in total HDL cholesterol levels. Plasma vitamin C was strongly correlated with fruit intake in both sexes. Both HDL cholesterol and low and very low density lipoprotein (LDL+VLDL) cholesterol levels tended to increase with increasing plasma vitamin C but this reached significance only-for the LDL+VLDL fraction. In addition, HDL cholesterol was negatively correlated with Quetelet's index in the women. Symptoms and medication for heart disease did not correlate significantly with plasma vitamin C or with HDL cholesterol levels, but reported angina showed a weak positive association with total cholesterol in the men, and there was some evidence of increased cortisol levels in subjects with heart disease.

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