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血液中嗜酸粒细胞占白细胞分类计数的5%以上,绝对数在450/立方毫米以上称为嗜酸粒细胞增多。姜片虫、肺吸虫、血吸虫、包虫、丝虫及钩、蛔虫等蠕虫感染时,患者往往出现嗜酸粒细胞增多现象。血吸虫卵沉着的宿主组织及上述蠕虫童虫移行所及的组织中往往有嗜酸粒细胞浸润。这种嗜酸粒细胞增多与蠕虫感染明显有关的现象,引起了人们的广泛注意。近十年来,随着免疫学和检验技术的不断发展,对嗜酸粒细胞在蠕虫感染中的功能性作用作了大量探讨。本文仅就蠕虫感染所致嗜酸粒细胞增多的机理、功能性作用等问题作一综述。
Eosinophils in the blood account for more than 5% of the white blood cell count, with an absolute count of 450 / cubic millimeter or more called eosinophilia. Ginger worms, paragonimiasis, schistosomiasis, hydatid, filarial and hook, roundworm worms and other infections, patients often appear eosinophilia. Schistosomiasis eggshell host tissues and the worms migrate to the tissues often have eosinophil infiltration. This phenomenon of eosinophilia, which is obviously related to helminth infection, has aroused people’s attention. In the recent decade, with the continuous development of immunology and testing techniques, a great deal of discussion has been made on the functional role of eosinophils in helminth infection. This article reviews only the mechanism of eosinophilia caused by helminth infection and its functional role.