Research of Biomarkers in Duchenne Muscular Dystrophy Patients

Inclusion Criteria: * FOR PATIENTS: * Diagnosis of DMD confirmed by genetic testing * Age over 3 years * Weight over 15 kg * Informed consent signed * FOR CONTROLS: * Age over 3 years * Male gender * Weight over 15 kg * Subjects with national health insurance coverage * Informed consent signed * Nonacute or chronic muscular, allergic, infectious, endocrine or inflammatory disorder in the 3 weeks preceding inclusion Exclusion Criteria: * FOR PATIENTS: * Concomitant chronic or acute muscular, endocrine, infectious, allergic or inflammatory disorder in the three weeks preceding the blood test * Intake of medicines other than angiotensin-converting enzyme inhibitors, beta blockers, dietary supplements, vitamins, alendronate and methylphenidate. Steroids (and medicines prescribed with them such as calcium supplements and proton pump inhibitors) will be discussed * Mental retardation or autism * Vaccination or treatment with immunoglobulins within the three months preceding inclusion * FOR CONTROLS: * Concomitant chronic or acute muscular, neurological (including mental retardation and autism), infectious or inflammatory disorder in the three weeks preceding the blood test * Vaccination or treatment with immunoglobulins within the three months preceding inclusion