Inferences from the collaboration in the field of pharmaco-chemical protection and treatment of radiation injury according to the 'Intercosmos' program

Thiamine pyrophosphate protection against radiation was considered in the case of both individual and combined administration with tryptophan or gamma-amino butyric acid. Experiments were done in mice, rats, guinea-pigs, and dogs, using acute or protracted gamma-rays, and scoring animal survival, incidence of bone-marrow cells bearing chromosome aberrations, and proportion of nucleated cells in spleen and bone-marrow hemopoietic centers. (A.B.)