低剂量照射离体血的刺激效应研究

The hormesis of blood samples irradiated in vitro by X-rays to low doses

研究受过低剂量照射的离体人血能否对正常血细胞或辐射损伤的血细胞产生刺激效应。将受过10cGy低剂量照射的离体人血,分别与未受照射或受过1000cGy大剂量照射的同一人血,以不同组合方式共培养,72h后收获细胞,测定各实验组的H?TdR掺入值。结果表明,接受低剂量照射的人血能够对受大剂量照射的3人血细胞产生明显的刺激增殖效应。受低剂量照射血的血浆中存在着引起刺激效应的物质。

The work is to observe whether human blood samples irradiated in vitro to 10cGy by X-rays could be an incentive to normal blood samples and blood cells injured by high dose radiation (1000cGy). The irradiated blood samples were cultured with blood samples collected from the same person, which were irradiated to 1000cGy or without irradiation. The cpm of H-TdR incorporation in different groups was measured after 72-hour culturing. 3 Experiment results suggested that the blood irradiated to 10cGy could stimulate the blood cells irradiated to 1000kGy to proliferate. There is something in the plasma resulting in the stimulating effect.