Oxidative stress parameters in hemodialysis patients with or without diabetes.

Oxidative stress (imbalance of antioxidant and prooxidants in favour of the later) is considered to be a feature of diabetes and chronic renal failure. Carbonyl stress defined as accumulation of reactive carbonyl compounds due to excess production or disturbed clearance from the body is thought to amplify oxidative stress in these conditions. The accumulation of carbonyl compounds can be also a consequence of oxidative stress. A vicious cycle can thus be formed. We have studied the association between carbonyl stress markers (dicarbonyl compounds, Amadori products) and oxidative stress markers (total plasmatic thiols and malondialdehyde level) in hemodialysed patients with or without diabetes taking into account the levels of possible excess substrates (glucose and triglycerides). We have concluded that hemodialysed diabetes patients are more susceptible to oxidative stress than hemodialysed patients without diabetes.