Evaluation of Alpha-Lipoic Acid in Diabetic Cardiomyopathy

Inclusion Criteria: * Male or female adult age ≥ 18 years * patient with diagnosed type 2 diabetes (history of pathological hyperglycemia according to WHO and HbA1c standards \>7% or ongoing treatment with oral antidiabetic agents). * Patients with stable cardiomyopathy (no hospitalization in cardiology in the month before inclusion) with a left ventricular ejection fraction (LVEF) \<50%. * patient who has signed an informed consent form * For women of childbearing age: effective contraception followed for at least 3 months before the start of the study and agreeing to keep it for the duration of the study. * affiliation to a social security scheme. Exclusion Criteria: subjects: * With a coronary event in the year before inclusion. * With symptoms of cardiac ischemia at inclusion. * Pregnant or breastfeeding woman * Severe renal insufficiency * Using antioxidant molecules in the 6 months prior to inclusion. * Using drugs that can activate PPARs (Fibrates, Telmisartan, Enalaprilat). * Using anti-inflammatory drugs. * Suffering from acute infectious diseases and inflammatory diseases. * Hypersensitivity or a history of hypersensitivity reaction to gadoteric acid, meglumine or any drug containing gadolinium. Non-inclusion criteria related to MRI: * with an implanted vascular stent less than 6 weeks before the examination; * carrier of an implanted biomedical device deemed "not safe" or "unsafe" in the list: http://www.mrisafety.com/TheList\_search.asp; * Beneficiary of an acquisition procedure that does not respect the conditions required by "conditional" use in a subject carrying an implanted biomedical material considered "conditional" in the list: http://www.mrisafety.com/TheList\_search.asp; * carrier of a ferromagnetic intraocular or intracranial foreign body close to the nerve structures; * carrying biomedical equipment such as a cardiac, neural or sensory pacemaker (cochlear implant) or a ventricular bypass valve without medical and paramedical supervision trained to perform MRI in these subjects;