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1·The genes in question control a type of white blood cell known as natural killer cells, or NK cells.

斯坦福大学的研究者们提出的这项假设发人深思，甚至出人意料。 他们所说的基因控制了一种被称为自然杀手细胞(NK细胞）的白血球细胞。

2·Moderate but not exaggerated exercise increase the activity of the white blood cells, particularly the natural killer cell activity.

适量的运动可以增强白细胞尤其是自然杀伤细胞的活动度，并且可以加强呼吸系统的免疫力。

3·At the end of the trial period, the researchers found no changes in natural killer cell activity except in the group taking fish oil.

在试验末期，除了服用鱼油的组，研究人员没有发现自然杀伤细胞活性有变化。

4·The immune modulatory effect of the Caulerpa racemosa var peltata polysaccharides on T lymphocyte subgroup and Natural killer cell in mice;

以上事实表明，总状蕨藻多糖具有较强的抗肿瘤和增强小鼠免疫力的作用。

5·A. Meyer(G. S. )are reported. In vivo, G. S. significantly enhances anti-sheep red cell-specific plaque-forming cell response and the activity of natural killer cell in mouse.

活体中，人参明显提高小鼠脾抗绵羊红细胞性溶血空斑形成反应和自然杀伤细胞活性。

6·Objective To explore potential synergetic effects of interleukin-2 (IL-2) with IL-18 on induction of natural killer (NK) cell activity against myeloma cells in vitro.

目的研究白细胞介素- 2 (IL - 2)和白细胞介素- 18 (IL - 18)诱导自然杀伤(NK)细胞活化和抗骨髓瘤细胞活性的协同作用。

7·Objective:To investigate the effects of inhalation anesthetic on T lymphocyte subsets and natural killer(NK) cell activity.

目的：观察异氟醚和安氟醚吸入麻醉对病人T细胞亚群、自然杀伤细胞（NK细胞）的影响。

8·In its natural form, vesicular stomatitis virus (VSV) is a potent cancer-killer in a number of tumor cell types, including brain tumors called gliomas, but it can be lethal.

天然的水泡性口膜炎病毒(VSV)是包括脑神经胶质瘤在内的多种肿瘤细胞的有力杀手，但也具有致命作用。

9·The factor was released from immune cells called natural killer (NK) cells in the liver, but only if another immune cell, the macrophage, was present.

该因子由肝脏中被称为自然杀伤(NK)细胞的免疫细胞释放，但是只有当另一种免疫细胞，巨噬细胞存在时才释放。

10·Objective To evaluate the roles of natural killer (NK) cells and macrophages in the rejection of discordant xenografts in nude mice and T cell-reconstitution nude mice.

目的了解NK细胞和巨噬细胞在T细胞缺乏或T细胞成功重建的情况下对异种移植物排斥的作用。