Efecte dels àcids grassos omega-3 d'origen marí i els polifenols sobre la síndrome metabòlica en rates.

Abstract

Metabolic Syndrome (MS) is a clinical entity which is strongly influenced by environmental factors such as unhealthy diet and poor physical inactivity. Nowadays MS affects approximately 10-25% adults worldwide; in some countries and age groups the percentage can be as high as 50-60%. MS increases the risk of suffering from cardiovascular disease and type 2 diabetes by 2-and 5-fold, respectively. The evidence showed that populations with low incidence of MS consume large amounts of fish oil. Therefore were established omega-3 PUFA as a key to prevention and improvement of SM. The chemical structure of PUFA with double bounds in it leads these fatty acids to lipoperoxidation in a situation of oxidative stress. In SM oxidative stress plays a key role in two ways, on one hand might intervene in the development of risk factors such as atherosclerosis or insulin resistance and on the other hand could be secondary to a previous pathological process such as obesity. Different studies have classified the phenol antioxidant as external antioxidants source which have more affinity for membranes, resulting in the most effective antioxidants to reduce oxidation membranes rich in PUFA. All in all, this study aims to demonstrate that a diet rich in PUFA omega-3 prevents SM and oxidative stress associated. Also this improvement can be increased with the administration of dietary polyphenols from grape seed