Eretskaia E V, Vovianko S I, Korchevaia L M
Vopr Med Khim. 1995 Mar-Apr;41(2):15-9.
Integral free radical state, paramagnetic enzyme complexes of nonheme iron with sulfur- and nitrogen-containing ligands in mitochondria and heme iron in microsomes as well as metalloenzymes of blood plasma ceruloplasmin and transferrin were studied in dynamics of burn disease in rats. Significant decrease in content of reduced ferrosulfur proteins in mitochondrial energy system was observed in kidneys within the second day after the burns and in liver tissue within the 14-21 days after the failure which correlated with reduction of cytochrome P-450 oxidized form. Development of paramagnetic nitrosyl complexes of heme and nonheme iron, specific for hypoxia, were detected in the impaired muscle tissue. Increase in tissue hypoxia was accompanied by decrease in content of transferrin and by elevation in the antioxidant activity of blood plasma. Application of local adsorption after early excision of burns crust contributed to normalization of both metabolism in the impaired tissues and in activity of the electron transport chain in liver and kidney tissues. Therefore, local adsorption therapy may be considered as an alternative procedure in sorptional detoxication of burns.
研究了大鼠烧伤疾病动态过程中整体自由基状态、线粒体中含硫和氮配体的非血红素铁顺磁酶复合物、微粒体中的血红素铁以及血浆铜蓝蛋白和转铁蛋白的金属酶。烧伤后第二天,肾脏线粒体能量系统中还原型铁硫蛋白含量显著下降;在功能衰竭后14 - 21天,肝脏组织中还原型铁硫蛋白含量显著下降,这与细胞色素P - 450氧化形式的减少相关。在受损肌肉组织中检测到了对缺氧具有特异性的血红素和非血红素铁顺磁亚硝酰复合物。组织缺氧加剧伴随着转铁蛋白含量降低以及血浆抗氧化活性升高。早期切除烧伤痂皮后应用局部吸附有助于受损组织代谢以及肝、肾组织电子传递链活性恢复正常。因此,局部吸附疗法可被视为烧伤吸附解毒的替代方法。