Table 2.
Relative organ weights of rats at 1 week and 4 weeks after bone implantation

Group		Body weight (g)	Relative organ weight (g) (Organ weight/body weight × 100)
			Spleen	Thymus	Lymph node
CD	1 week	255.6 ± 10.83	0.3561 ± 0.0404	0.2047 ± 0.0388	0.5608 ± 0.0630
	4 weeks	381.20 ± 25.47	0.2393 ± 0.0258	0.1508 ± 0.0181	0.3901 ± 0.0357
Fresh G	1 week	253.4 ± 7.99	0.3148 ± 0.0533	0.2165 ± 0.0609	0.4924 ± 0.0505
	4 weeks	348.78 ± 24.23	0.2342 ± 0.0324	0.1349 ± 0.0271	0.3690 ± 0.0340
Fresh T	1 week	255.2 ± 7.04	0.3117 ± 0.0454	0.1847 ± 0.0318	0.4812 ± 0.0817
	4 weeks	346.83 ± 15.53	0.2191 ± 0.0268	0.1328 ± 0.0192	0.3519 ± 0.0242
Chem T	1 week	253.0 ± 10.04	0.3898 ± 0.0450	0.2373 ± 0.0417	0.6271 ± 0.0845
	4 weeks	368.25 ± 11.93	0.2221 ± 0.0241	0.1494 ± 0.0375	0.3715 ± 0.0369

Values are expressed in mean ± S.D. (n=5).
CD: critical defect, Fresh G: fresh general pig bone, Fresh T: fresh transgenic pig bone, Chem T: chemical treated transgenic pig bone.