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本文应用~(125)IUdR标记K_(562)靶细胞技术测定健康老年人(60～87岁)和健康青年人(21～28岁)外周血淋巴细胞自然杀伤(NK)活性。结果表明,健康老年人NK细胞活性与健康青年人相比没有显著性差异(P>0.05)。对照前人的研究,该结果认为NK细胞活性不存在明显的随龄变化。
In this paper, the natural killer (NK) activity of peripheral blood lymphocytes in healthy elderly (60-87 years) and healthy young people (21-28 years old) was measured by 125 IUdR labeled K 562 target cells. The results showed that there was no significant difference in NK cell activity between healthy elderly and healthy young people (P> 0.05). In contrast to previous studies, this result suggests that NK cell activity does not vary significantly with age.