Redox State in the Course of Chronic Renal Insufficiency and Hemodialysis: Implications in Morbimortality

Inclusion Criteria: * 18 and 80 years old man or woman dialysing at least 3 times a week for at least 6 months and having no residual renal function * Rate of haemoglobin \> 11 g / dl * Clinically stable patient that is having had no considerable event (cardiovascular problem, infection, surgical operation) with the exception of angioplasty of fistula or prosthesis vascular, in the previous 3 months the entrance to the study * Patient capable of understanding and of following the essay, in particular knowing how to read the note of information. Exclusion Criteria: * Pregnant woman * Treatment by corticoids or immunosuppresseurs * hemopathy sly * chronic cancer or infection in evolution * Cardiovascular event (infarct, unstable angor, coronary bypasses, confusions of the rhythm, AVC, amputation) or infectious (blood-poisoning, pneumopathie, meningitis) or surgical operation in the previous 3 months the inclusion in the study.