RT Journal Article T1 Circulating antioxidant defences are decreased in healthy people after a high-fat meal. A1 Cardona, Fernando A1 Túnez, Isaac A1 Tasset, Inmaculada A1 Garrido-Sánchez, Lourdes A1 Collantes, Eduardo A1 Tinahones, Francisco José K1 Uric acid K1 Oxidative Stress K1 Postprandial hyperlipidaemia K1 High-fat meal K1 Antioxidantes K1 HDL-Colesterol K1 Grasas en la Dieta K1 Peroxidación de Lípido K1 Triglicéridos AB The aim of this study was to examine the responses of uric acid, antioxidant defences and pro-oxidant variables after a high-fat meal. Twenty-five healthy persons without criteria for the metabolic syndrome, underwent a high-fat meal with Supracal (60 g fat). Measurements were made at baseline and 3 h after the meal of TAG, uric acid, HDL-cholesterol, total proteins and oxidative stress. Following the high-fat meal, we detected a significant increase in pro-oxidative variables and a decrease in antioxidative variables. The uric acid concentrations were significantly lower after the high-fat meal and the reduction correlated significantly with the oxidative stress variables. The inverse relation between reduced uric acid and increased carbonylated proteins remained in multiple regression analysis. We conclude that uric acid is a powerful antioxidant and its reduction following a high-fat meal may be related with its acute antioxidative action. PB Cambridge University Press SN 0007-1145 YR 2008 FD 2008-08 LK http://hdl.handle.net/10668/1130 UL http://hdl.handle.net/10668/1130 LA en NO Cardona F, Túnez I, Tasset I, Garrido-Sánchez L, Collantes E, Tinahones FJ. Circulating antioxidant defences are decreased in healthy people after a high-fat meal. Br. J. Nutr. 2008; 100(2):312-6 NO Journal Article; The research group belongs to the ‘Centros de Investigación en Red’ (CIBER, CB06/03/0018) of the Instituto de Salud Carlos III, SAF 2006/12 894 of the MCYT, Madrid, Spain. DS RISalud RD Mar 14, 2025