| Group | n | Col I | Col I mRNA | Col III | Col III mRNA |
| Semi-quantitative | quantitative | Semi-quantitative | quantitative | ||
| Young | 12 | 76.62 ± 1.05 | 3.13 ± 0.54 | 105.40 ± 2.66 | 6.86 ± 0.41 |
| older | 12 | 78.37 ± 2.42 | 4.63 ± 1.03 | 123.10 ± 3.81 | 7.68 ± 0.63 |
| P |
| >0.05 | 0.05 | >0.05 | >0.05 |