MicroRNAs track radiation doses
Blood levels of genetic material could help identify people at risk after exposure
MOLECULAR GEIGER COUNTER The abundance of small pieces of genetic material called microRNAs falls or rises in the blood of mice after radiation exposure. A lethal dose of 8 grays of radiation (red dots) produces a different pattern than a serious but survivable dose of 6.5 grays (black triangles).
S.S. Acharya et al/Science Translational Medicine 2015