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免疫組織化學的 方法에 依한 마우스組織에서의 Toxoplasma 抗原 檢出에 關한 硏究
趙裕行,李英河,羅榮彦,辛大煥 충남대학교 의과대학 지역사회의학연구소 1990 충남의대잡지 Vol.17 No.1
This study was performed to identify the Toxoplasma antigens from the mice tissue chronically infected with Toxoplasma gondii Beverley strain by peroxidase-antiperoxidase(PAP) method. The 21 mice divided into two groups, control group (3mice) and cortisone-treated group (18mice). In cortisone-treated group, the mice were injected with 0.5mg of cortisone acetate twice a week for 6 week subcutaneously and 3 mice were sacrified at each week. The brain, lung, heart, liver, spleen, kidney, small intestine and skeletal muscle of mice were removed immediately after death. The removed tissues were fixed with 10% buffered neutral formalin, and then PAP method and H-E staining were done. The results were obtained as follows: 1. The cysts were found in the brain entirely, in the heart at 4 weeks, and in the skeletal muscle at 5 weeks. The number and size of cysts in the brain were increased in proportion to total dose of cortisone acetate in mice. Tachyzoites of Toxoplasma gondii showed at 4, 5 and 6 week in brain. 2. The brain, speen and skeletal muscle showed highly positive immunoreactivity. The liver, heart and small intestine were moderately positive, but lung and kidney showed weekly positive immunoreactivity by PAP method. 3. There were a chronic inflammatory responses in the brain, liver and heart but the remaining organs were almost normal appearance. And tachyzoites were found in the brain, associated with severe inflammatory changes. The present study revealed that tachyzoites and immunoreactivity of Toxoplasma were easily detected by PAP immune complex method.