迄今,几乎还没有一种低毒的辐射防护剂在人受辐射后给药能恢复严重损伤的造血组织,口服有效的辐射防护剂更是少见。因此,在动物身上研究这样的防护剂就具有重要的意义。本文报道了X线照后注射给药有效的人参提取物和照前连续口服有效的三个中草药方。研究结果如下: ①人参促进辐射损伤的康复。小鼠以720R照射后,腹腔注射人参提取物,增加了其30天的生存率,且随提取物的剂量增加而增加。该提取物热处理后的热稳定部分仍具有明显的辐射防护作用。当豚鼠的剂量/体重大约是小鼠的四倍时,其生存率提高尤为明显。小鼠经550R X线照后,给以人参提取物,10天 To date, there has been almost no low-toxic radioprotective agent administered to humans to restore severely damaged hematopoietic tissue. Oral radiation protection agents are rare. Therefore, it is of great significance to study such protective agents on animals. This article reported on X-rays after injection of effective ginseng extract and three oral Chinese herbal medicines that were continuously orally administered. The results of the study are as follows: 1 Ginseng promotes the recovery of radiation damage. After the mice were irradiated with 720R, intraperitoneal injection of ginseng extract increased their 30-day survival rate and increased with the increase of the dose of the extract. The thermally stable portion of the extract after heat treatment still has a significant radiation protection. When the dose/body weight of a guinea pig is approximately four times that of a mouse, the survival rate is particularly improved. The mice were given ginseng extract after 550R X rays for 10 days