[2P-835] Spontaneous p53 activation in aged C57BL/6 mice mitigates the lifespan-extending adaptive response induced by low-dose ionizing radiation

^○Masaoki Kohzaki¹, Suzuki Keiji², Akira Ootsuyama³, Ryoji Okazaki¹ (1.Dep. of Radiobiol. Hyg. Manag., Inst. of Indus. Ecol. Sci., Univ. of Occup. Environ. Health, 2.Dep. of Radiat. Med. Sci., Atomic Bomb Dis. Inst., Nagasaki Univ., 3.Dep. of Radiat Biol. Health, Sch. of Med., Univ. of Occup. Environ. Health)