Objective: to determine sialidase activity in human hepatocellular carcinoma (HCC) so as to probe into the mechanism of gangliosides change (GD3 increasing) in HCC.
目的：检测肝癌组织中唾液酸酶的活性，探讨肝癌组织中神经节苷脂谱改变(GD 3含量增加)的机理。
Objective: to probe into the effect of human sera on tumor cell aggregation and evaluate tumor cell agglutinating activity of human sera.
目的：探讨血清对肿瘤细胞凝集的影响以及血清凝集肿瘤细胞活性测定的意义。
Objective: to probe into the physical and chemical property, biology activity, acute and chronic toxicity of low molecular weight natural tumor suppressor (LMW NTS) of fetal bovine hepatocytes.
目的：探讨胎牛肝细胞低分子天然抑瘤物(LMW NTS)的理化性质、生物学特性、急性与长期毒性作用。
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