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2001 | 49 | 2 | 139-146

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Alcohol-related cirrhosis with pancreatitis. The role of oxidative stress in the progression of the disease

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To assess the level of oxidative stress, measured as prooxidant-antioxidant imbalance in the blood of patients with alcohol-related injury of the liver and pancreas, we determined superoxide ion (O2?-) production by neutrophils isolated from the peripheral blood of 3 groups of patients. Patients with compensated alcoholic liver cirrhosis (n=16), with alcoholic chronic pancreatitis (n=20), and with concomitant cirrhosis and pancreatitis (n=10) were included in this study. All patients had consumed at least 70 g of pure alcohol per day over 5 years. They had not abstained before admission to hospital. The control group consisted of 16 healthy non-alcohol-abusive subjects. As antioxidative enzymes (AOE) present in sera play a very important role in the regulation of plasma ROS levels and in the protection of plasma compounds against ROS action, we also examined serum activity of CAT, SOD (total activity) and GPx serum concentration. Neutrophils of patients with concomitant alcoholic liver cirrhosis and pancreatitis exhibited, similarly to the neutrophils of patients with chronic alcoholic pancreatitis, an enhanced ability to produce superoxide anions in vitro. In contrast, neutrophils of patients with alcoholic liver cirrhosis exhibited a defect in resting and PMA-induced superoxide anion production. The AOE activity in the sera of patients was also significantly changed. Total SOD activity was enhanced in all groups of patients with alcoholic liver cirrhosis, chronic pancreatitis and with concomitant injury of both organs. CAT activity was only increased in the sera of patients with liver cirrhosis or pancreatitis, but not in the patients with concomitant cirrhosis and pancreatitis. GPx concentration was only diminished in the patients with chronic pancreatitis. It seems likely that oxidative stress, defined as the imbalance between prooxidant and antioxidant activity, is highest in the blood of patients with chronic pancreatitis and, especially, in patients with concomitant liver cirrhosis and pancreatitis.



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A. Szuster-Ciesielska, Department of Virology and Immunology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland


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