Method of using manganese to protect an animal from radiation damage

摘要

An antioxidative biophylactic agent containing a substance that can induce metallothionein production in human or animal body. Manganese or compounds thereof, Streptococcus hemolyticus which has been deprived of a streptolysin-S-yielding ability, and an extract from coriolus versicolor belonging to the family Polyporaceae, Basidomycetes having a remarkable metallothinonein-inducing ability in vivo, and an antioxidative biophylactic effect such as radiation damage protection can be obtained by administering these metallothionein-inducing substances.