Literature synthesis This paper was summarized in 3 aspects: radiation risk in manned space flight, biological effect of space radiation injury and trend of research on radioprotector.

资料综合就载人航天辐射危害、航天辐射损伤的效应以及航天辐射防剂研究发展向等3个行综合。

Study has shown that polysaccharase has significant function of radiation protection,which may be related to immunologic adjustment,protection of hemopoietic system,clearance of radical.

研究发现多种多糖有明显的辐射损伤防作用,可能与免疫调节、保造血系统、清除自由基等有关。