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  • Title: [Changes of superoxide dismutase and lipid peroxide in rats with Pneumocystis carinii pneumonia].
    Author: Liu XH, Zhou BY, Dai XH.
    Journal: Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi; 2011 Oct; 29(5):375-7. PubMed ID: 24830202.
    Abstract:
    Sprague-Dawley (SD) rat model of Pneumocystis carinii pneumonia (PCP) was established by groin subcutaneous injection with dexamethasone sodium phosphate 35 mg each twice a week for eight weeks. There were two groups: infected group (eighteen rats) and normal control group (six rats) . Pathological changes in lung tissues were observed in the lung imprint after staining with Gomori methenamine silver (GMS) and in tissue sections after staining with hematoxylin-eosin (HE). The activity of superoxide dismutase (SOD) and the content of lipid peroxide (LPO) in lung tissue homogenate were detected by spectrophotometric method. Results showed that in infected group more PC cysts were found in the lung imprint and typical pathological change observed in the lung section. SOD activity in infected group [(31.49 +/- 7.18) U/mgprot] decreased significantly compared with the control [(54.41 +/- 8.97) U/mgprot] (P < 0.01), but LPO in infected group [(2.26 +/- 0.21) nmol/mgprot] was higher significantly than the control [(1.63 +/- 0.01) nmol/mgprot] (P < 0.01).
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