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    Erythrocyte and plasma superoxide dismutase activities in acute appendicitis
    (1998) Koltuksuz U.; Uz E.; Gursoy H.; Demircan M.; Aydinc M.; Mutus M.; Cetin S.
    Although the role of oxygen free radicals in many inflammatory diseases has been well known, it has not been thoroughly investigated in the inflammatory diseases, of the abdomen. In order to investigate the possible role of oxygen free radicals in the mechanism of progression following the onset of inflammation, blood samples from 18 patients diagnosed as acute appendicitis and 10 healthy children as controls were collected. After plasma and erythrocytes of the blood samples were separated, superoxide dismutase (SOD) activities were measured in these compartments. Additionally, the patients with appendicitis were divided into perforated (n=8), and nonperforated (n=10) subgroups, according to intraoperative examination findings and histopathological classification. SOD activities were compared statistically between these two groups, and the control group. A significant difference in SOD activity between perforated and nonperforated appendicitis in both plasma and erythrocyte was observed (plasma: 4.2±1.7 and 2.0±0.7 U/ml, p<0.05; erythrocyte: 1690.7±799.6 and 1104.2±225.1 U/grHb, p<0.05). The difference between the nonperforated group and control group was not significant, whereas there was a significant difference between the perforated and control groups (plasma: 4.2±1.7 and 2.6±0.9 U/ml, p<0.05; erythrocyte: 1690.7±799.6 and 1148.8±152.2 U/grHb, p<0.05). According to these results, we may speculate that free oxygen radicals released from polymorphonuclear leucocytes following an inflammatory condition may play an important role in the progression of acute appendicitis with the contribution of some other possible factors.