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Oxidative stress in acute and chronic pancreatitis


, : Oxidative stress in acute and chronic pancreatitis. American Journal of Clinical Nutrition 62(6 Suppl): 1306s-1314s

Oxygen radicals mediate an important step in the initiation of acute pancreatitis. These reactive oxygen metabolites are generated at an early stage of the disease. The source of the enhanced production of oxygen radicals, however, still remains unclear. Experimentally, the effectiveness of antioxidant treatment varies from one model to the other, the differences depending on the experimental model and not on the form of pancreatitis that was induced. In most studies, the experimental animals were pretreated before acute pancreatitis was induced. This does not mirror clinical reality because patients are admitted to the hospital after the onset of the disease. It was shown in cerulein-induced pancreatitis, however, that scavenger treatment also mitigated the pancreatic tissue damage after induction of acute pancreatitis. Moreover, antioxidant treatment also attenuated the extrapancreatic complications, thus improving the final outcome of the disease. Initial indirect observations also suggest that in human acute, acute recurrent, and chronic pancreatitis, oxygen free radicals are generated and add to the damage. Concomitantly, these patients suffer from a severe depletion of antioxidants. Apparently. acute pancreatitis is accompanied by severe oxidative stress. Whether or not this disbalance is instrumental in the development and course of disease remains unanswered. Supplementation with antioxidants that are deficient in patients with acute pancreatitis might be a feasible option to the present therapy to avoid extrapancreatic complications. Well-defined, controlled clinical trials involving patients suffering from acute pancreatitis are therefore needed to validate the role of oxygen radicals in this disease.

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Accession: 002914142

PMID: 7495225

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