Abstract
Objective: Since black tea contains high levels of manganese (Mn), we investigated the relationship between dietary Mn intake, circulating Mn levels and leucocyte expression of two Mn-dependent enzymes in tea drinkers and non-tea drinkers. Design: We assessed Mn intakes ( food frequency questionnaire), fasting whole blood and plasma Mn levels, and quantitative expression of peripheral blood mononuclear cell Mn-dependent superoxide dismutase (MnSOD) and cytosolic aminopeptidase-P (cAP-P). Setting and subjects: In total, 24 tea drinkers (>= 1 l black tea/day) and 28 non-tea drinkers were recruited from the staff and students of King's College London by circular email. Results: Dietary Mn intakes ( mean ( range)) were significantly lower ( P
Original language | English |
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Pages (from-to) | 1 - 8 |
Number of pages | 8 |
Journal | European Journal of Clinical Nutrition |
Volume | 60 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2006 |