| Group | IGF-I (ng/ml) | ||
| D14 | D49 | D63 | |
| Control | 50.7 ± 11.1 | 49.9 ± 5.6 | 55.4 ± 16.8 |
| pSPI (1) | 51.1 ± 15.1 | 55.6 ± 14.5 | 57.3 ± 16.2 |
| pSPI (2) | 53.0 ± 8.16 | 61.0 ± 11.0 | 59.6 ± 16.0 |
| pSPI (3) | 57.9 ± 17.9 | 62.6 ± 12.7 | 69.7 ± 13.6 |
| nSPI | 55.6 ± 11.1 | 57.5 ± 15.0 | 58.4 ± 10.1 |