Table I.

Changes in the body weight of mice following carbon ion beam irradiation.

	Body weight (g)
Group	1 month	2 months	3 months	4 months	5 months	6 months
CK	30.3±2.1	35.5±5.0	39.1±4.7	41.6±1.9	44.8±1.4	44.5±3.2
2 Gy	25.1±3.4a	32.9±2.3	35.3±2.5	38.4±6.2	39.7±2.4a	42.3±2.7
4 Gy	24.2±1.1a	29.8±2.2a	33.7±1.6a	36.1±4.2a	37.3±1.6a	36.9±4.8a
6 Gy	23.9±1.9a	29.5±4.4a	34.1±1.3a	34.8±2.7a	37.6±3.3a	35.8±4.1a

Values are expressed as the mean ± SD, n=6.

^aP<0.05, significant decrease compared with the CK group at the same time point. CK, normal control.