Protection from radiation

Researchers at Washington University School of Medicine report they have developed an agent that protects cells from the lethal effects of radiation, regardless of whether it is given before or after exposure.
Using this agent in mice, the investigators found that the treatment helped shield rapidly dividing cells that are most vulnerable to radiation-induced death, providing proof in principle that it is possible to fend off radiation damage
Current treatments for severe radiation exposure, also called acute radiation syndrome, are limited to drugs that boost the production of blood cells and platelets, but this approach is futile if underlying stem cells are also killed off. Moreover, there are no available treatments that can be given after exposure to limit damage to cells.