Comparative Evaluation of the Evolution of Arterial and Microcirculatory Endothelial Function in Obese Patients With Type-2 Diabetes Versus Non-diabetic Obese Patients After a First Bariatric Surgery

Inclusion Criteria: * The patient is at least 18 years old and under 70 years old * The patient is available for a follow-up of 12 months * The patient signed the consent form * The patient must be affiliated or beneficiary to an health care plan * The patient is followed in hospital day care in the endocrine and metabolic disorders department at Nimes University Hospital for a first bariatric surgery Exclusion Criteria: * The subject participates in another interventional study. * The subject is in an exclusion period determined by a previous study. * The subject is under the protection of justice, guardianship or curatorship. * The subject refuses to sign the consent. * It is not possible to give the subject informed information. * The patient is pregnant or breastfeeding. * Subject with known advanced atherothrombotic disease (arterial disease of the lower limbs, significant carotid plaque (generating stenosis\> 50%), history of myocardial infarction, stroke) * The subject is type 1 diabetic. * The subject has already had a bariatric surgery.