Methods: At treatment initiation and 3 months after: comparison of fat sample mRNA expression of adipokines (adiponectin, leptin, IL6, TNFa), 11bHSD1, SREBP1c and PPARg, fat morphology and seric concentrations of adiponectin, leptin, IL6, sTNFR1 between patients LD+ and patients LD-. The diagnosis of LD will be performed by 3 experts using patients photographs