Dr. Tsubokura's Radiation Lecture Vol.147

Author: Masaharu Tsubokura M.D., PhD.

Editors: Akihiko Ozaki M.D.,PhD., Yuki Senoo MUDr.

293. There are no cases of detectable adverse birth outcomes associated with radiation exposure in Fukushima

　　　　The investigation of atomic bomb survivors in Hiroshima and Nagasaki demonstrated no detectable genetic effects, including an increase in cancer risk and other diseases among the offspring (the second generation exposed to radiation) of the survivors. Although several animal studies confirmed the increased incidence of genetic disorders related to high-dose radiation exposure during pregnancy, the genetic effects of radiation exposure are currently not confirmed among humans. Therefore, there is no need to worry about the genetic effects of the radiation caused by the 2011 Fukushima Daiichi Nuclear power plant accident.

　The above presented genetic effects of radiation exposure were found in couples who received a high-dose of radiation before conception. The birth outcome is different in the case of experiencing radiation exposure during pregnancy (after conception).

　　　　According to the report on the survivors of the atomic bombings of Hiroshima and Nagasaki, exposure of a fetus to high-dose radiation, prenatal radiation exposure, can lead to altered organ and