TABLE 1.
Linear regression analysis of PGE2 versus hydroxy fatty acids in gingival tissue extractsa
| Tissue extract | Linear regression formula | r | r2 | P |
|---|---|---|---|---|
| Aq 3-OH C14:0 | y = −0.010x + 0.305 | 0.009 | 0.0001 | |
| Org 3-OH C14:0 | y = 0.257x + 0.184 | 0.391 | 0.120 | 0.0397 |
| Aq 3-OH iC17:0 | y = 0.467x + 0.103 | 0.533 | 0.285 | 0.0035 |
| Org 3-OH iC17:0 | y = 6.932x + 5.644 | 0.272 | 0.074 | |
| Aq 2-OH C16:0 | y = 0.785x + 0.063 | 0.621 | 0.386 | 0.0004 |
| Org 2-OH C16:0 | y = 105.316x + 31.653 | 0.486 | 0.237 | 0.0087 |
| Aq 2-OH C14:0 | y = 0.047x + 0.020 | 0.376 | 0.142 | 0.0483 |
| Org 2-OH C14:0 | y = 3.660x + 0.841 | 0.667 | 0.445 | 0.0001 |
a
Tissue samples were processed as described in Materials and Methods. Prostaglandin levels were compared with hydroxy fatty acid recovered in either the aqueous extracts (Aq) or organic solvent extracts (Org) of the same gingival tissue samples. The correlation coefficients (r), coefficients of determination (r2), and the slope significance levels (P) are listed for each comparison.