Research Projects

Apr, 2018 - Mar, 2021

Genetic analysis in the life prolonging effect of low dose radiation, and applications as biomarkers

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

Grant number
18K07774
Japan Grant Number (JGN)
JP18K07774
Grant amount
(Total)
4,420,000 Japanese Yen
(Direct funding)
3,400,000 Japanese Yen
(Indirect funding)
1,020,000 Japanese Yen

In the p53 gene normal 8-week-old mice, lifespan in the 2cGy+3Gy irradiated group extended than 3Gy alone irradiated group. There was no life-prolonging effect in p53 gene heterozygous mice (half the amount of p53) and 40-week-old mice. Expression of the p53 gene decreased at 40 weeks compared to 8 weeks of age, and there was no difference in the development of apoptosis between the 2cGy + 3Gy group and the 3Gy group. In the analysis of microRNAs that play an important role in biological phenomena, the microRNAs expressed in each irradiation group of 0Gy, 2cGy, 2cGy + 3Gy, and 3Gy were different. It was suggested that microRNAs could be biomarkers.

Link information
KAKEN
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18K07774
ID information
  • Grant number : 18K07774
  • Japan Grant Number (JGN) : JP18K07774

List of results of the research project

Narrowing down

Papers

  1