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作者对曼氏血吸虫母胞蚴及子胞蚴体内的乙酰胆硷酯酶的分布进行了研究。从毛蚴离体培养4天而成的长约280微米的幼期母胞蚴,其神经团及焰细胞含有乙酰胆硷酯酶,但原先分布于毛蚴的神经干、神经连合和乳突的酶活力在变态过程中已消失。从母胞蚴新分离出的幼期子胞蚴体内未发现酶活力,仅在其体壁查见少许阳性反应。经离体培养后,由于尾蚴胚胎的发育,酶活力逐渐增强,阳性颗粒主要沉积于尾蚴胚胎膜上。从感染后21天螺蛳消化腺中分离出的子胞蚴,酶分布情况与离体培养的结果相仿。
The authors studied the distribution of acetylcholinesterase in Schistosoma mansoni and cysticercus. The juvenile metacercariae of 280 m in length cultured in vitro from Marmoset larvae contained neuropeptides and flame cells containing acetylcholinesterase but were originally distributed in the trichomes of the neural stem, Enzyme activity has disappeared during metamorphosis. No nectar activity was found in the newly isolated zygomyces of the female nematode, and only a few positive reactions were observed in the body wall. After in vitro culture, due to the development of cercariae embryos, the enzyme activity gradually increased, the positive particles are mainly deposited on the embryonic membrane of cercariae. From 21 days after infection, snail digestive gland isolated from the sub-cercaria, the distribution of enzymes and in vitro culture results are similar.