Table 3.
Histochemical quantification of collagen, elastic and reticulin fibers and proteoglycans in the four types of skin dermis
| PA collagen fibers | Intensity collagen fibers | PA elastic fibers | Intensity elastic fibers | PA reticulin | Intensity reticulin | PA proteoglycans | Intensity proteoglycans | |
|---|---|---|---|---|---|---|---|---|
| Dorsal hand skin (DHS) | 37.0 ± 21.0 | 125.0 ± 4.7 | 14.9 ± 14.0 | 199.5 ± 2.0 | 1.9 ± 0.5 | 18.0 ± 12.1 | 26.3 ± 26.8 | 187.2 ± 5.3 |
| Palmar hand skin (PHS) | 35.7 ± 9.1 | 130.7 ± 4.1 | 4.9 ± 3.2 | 200.9 ± 2.0 | 1.4 ± 0.6 | 29.8 ± 24.1 | 23.9 ± 16.6 | 185.1 ± 8.0 |
| Dorsal foot skin (DFS) | 36.4 ± 16.8 | 135.8 ± 2.5 | 4.0 ± 2.2 | 197.8 ± 4.6 | 1.3 ± 0.6 | 27.7 ± 12.9 | 26.7 ± 21.4 | 185.5 ± 6.2 |
| Plantar foot skin (PFS) | 48.5 ± 11.6 | 140.3 ± 5.2 | 4.9 ± 3.6 | 199.8 ± 4.0 | 2.0 ± 0.8 | 30.2 ± 34.7 | 20.2 ± 13.9 | 188.3 ± 5.5 |
| Hand skin | 36.3 ± 15.6 | 127.9 ± 5.2 | 9.9 ± 11.1 | 200.2 ± 2.0 | 1.7 ± 0.6 | 23.9 ± 19.5 | 25.1 ± 20.4 | 186.1 ± 6.6 |
| Foot skin | 43.0 ± 15.1 | 138.3 ± 4.7 | 4.5 ± 3.0 | 198.9 ± 4.3 | 1.6 ± 0.8 | 29.0 ± 25.5 | 23.2 ± 17.5 | 187.0 ± 5.9 |
| Non-ridged skin | 36.7 ± 18.2 | 131.0 ± 6.6 | 8.9 ± 10.7 | 198.6 ± 3.7 | 1.6 ± 0.6 | 22.9 ± 13.1 | 26.6 ± 23.2 | 186.3 ± 5.7 |
| Ridged skin | 43.4 ± 12.2 | 136.5 ± 6.7 | 4.9 ± 3.4 | 200.3 ± 3.3 | 1.7 ± 0.8 | 30.0 ± 29.1 | 22,05 ± 12.1 | 187.0 ± 6.6 |
| Hand skin vs. foot skin p value | 0.2368 | 0.0000* | 0.0759 | 0.5152 | 0.3569 | 0.4901 | 0.1557 | 0.5944 |
| Ridged skin vs. non-ridged skin p value | 0.3802 | 0.0339* | 0.2664 | 0.1320 | 0.9568 | 0.7556 | 0.5011 | 0.5011 |
| DHS vs. PHS p value | 1.000 | 0.0346* | 0.0346* | 0.2049 | 0.3310 | 0.4051 | 1.000 | 0.3980 |
| DFS vs. PFS p value | 0.1135 | 0.0377* | 0.7920 | 0.3066 | 0.4850 | 0.6497 | 0.5529 | 0.0750 |
| DHS vs. DFS p value | 0.7217 | 0.0004* | 0.0206* | 0.7217 | 0.0991 | 0.0819 | 0.7217 | 0.7217 |
| PHS vs. PFS p value | 0.0204* | 0.0004* | 1.000 | 0.6429 | 0.2233 | 0.7051 | 0.1720 | 0.4397 |
For each element, the percentage of area (PA) occupied by each component and the intensity of the signal shown by each component (intensity) are shown as average ± standard deviation. The last rows correspond to statistical p values for the comparison of two specific skin types
DHS dorsal hand skin, PHS palmar hand skin, DFS dorsal foot skin, PFS plantar foot skin
* p values below 0.05 are labeled with asterisks