1 Endocrinology, Diabetology, Metabolism and Nutrition department, INSERM U1190 Translational Research in Diabetes, Firendo Rare Diseases Competence Center PRISIS, (Pathologies of insulin Resistance and Insulin Sensitivity), Lille University Hospital, 1 rue Polonovski, 59 000 Lille, France. Electronic address: mc-vantyghem@chru-lille.fr.