TY - JOUR A2 - Galvano, Fabio AU - Colica, Carmela AU - Di Renzo, Laura AU - Trombetta, Domenico AU - Smeriglio, Antonella AU - Bernardini, Sergio AU - Cioccoloni, Giorgia AU - Costa de Miranda, Renata AU - Gualtieri, Paola AU - Sinibaldi Salimei, Paola AU - De Lorenzo, Antonino PY - 2017 DA - 2017/08/09 TI - Antioxidant Effects of a Hydroxytyrosol-Based Pharmaceutical Formulation on Body Composition, Metabolic State, and Gene Expression: A Randomized Double-Blinded, Placebo-Controlled Crossover Trial SP - 2473495 VL - 2017 AB - Hydroxytyrosol (HT) plays a significant role in cardiovascular disease (CVD) protection, and its metabolites are able to protect from the endothelial dysfunction commonly present in atherosclerosis. This randomized double-blinded, placebo-controlled crossover trial determined the effect in healthy volunteers of two gastroresistant capsules containing 15 mg/day of HT, for a 3-week period (HTT). Evaluation of nutritional status, serum metabolites, oxidative stress biomarkers, and gene expression of 9 genes related to oxidative stress, inflammation, and CVDs was performed. Oxidation biomarkers like thiol group (p=0.001), total antioxidant status (TAS) (p=0.001), superoxide dismutase 1 (SOD1) (2−ΔΔCt = 3.7), and plasma concentration of HT (2.83 μg·mL−1) were significantly increased, while nitrite (p=0.001), nitrate (p=0.001), and malondialdehyde (MDA) (p=0.02) were drastically reduced after HTT. A significant reduction of body fat mass percentage (p=0.01), suprailiac skinfold (p=0.01), and weight (p=0.04; Δ% = −0.46%) was observed after HTT. This study shows that regular intake of 15 mg/day of HT changed body composition parameters and modulated the antioxidant profile and the expression of inflammation and oxidative stress-related genes. However, it is advisable to personalize HT doses in order to exert its health benefits in CVD prevention and protection of LDL-C particles from oxidative damage. This trial is registered with ClinicalTrials.gov NCT01890070. SN - 1942-0900 UR - https://doi.org/10.1155/2017/2473495 DO - 10.1155/2017/2473495 JF - Oxidative Medicine and Cellular Longevity PB - Hindawi KW - ER -