研究β-胡萝卜素抗动物辐射损伤的一系列效应,得出结论:(1)β-胡萝卜素能降低辐照动物慢性期的死亡率;(2)β-胡萝卜素能提高辐照动物外周粒细胞及脾脏B-淋巴细胞作用;(3)β-胡萝卜素有增加辐照动物全血中超氧化物歧化酶的活力;(4)β-胡萝卜素对辐照动物的胸腺、睾丸等组织结构的损伤具有一定的保护作用;(5)β-胡萝卜素能提高辐照动物血浆游离天门冬酰胺的水平及降低脯氨酸水平。 A series of effects of β-carotene on animal radiation injury were studied and conclusions were drawn: (1) β-carotene can reduce the mortality of irradiated animals in chronic phase; (2) β-carotene can increase the peripheral grain of irradiated animals. B-lymphocyte function in cells and spleen; (3) β-carotene increases the activity of superoxide dismutase in irradiated blood; (4) β-carotene affects the thymus and testis of irradiated animals. The injury has a certain protective effect; (5) β-carotene can increase plasma free asparagine levels in irradiated animals and reduce proline levels.