Table 3.
Correlations (Spearman's coefficient (rho)) between all considered variables in 70 individuals. The exact values of P are reported in parentheses.
| Sperm (mL × 106) |
Motility (%) | Normal morphology (%) |
A (%) | N (%) | Ghrelin | Obestatin | TNF-α | IL-6 | MDA | CAT | GSH/GSSG | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sperm/mL × 106 | 1 | |||||||||||
| Motility (%) | 0.576 (.0001) |
1 | ||||||||||
| Normal morphology (%) | 0.509 (.0001) |
0.475 (.0001) |
1 | |||||||||
| A (%) | -0.136 (ns) |
-3.41 (.004) |
-0.377 (.001) |
1 | ||||||||
| N (%) | -0.298 (.012) |
-0.530 (.0001) |
-0.166 (ns) |
0.007 (ns) |
1 | |||||||
| Ghrelin | 0.299 (.012) |
0.172 (ns) |
0.421 (.0001) |
-0.359 (.002) |
0.076 (ns) |
1 | ||||||
| Obestatin | 0.122 (ns) |
0.417 (.001) |
0.282 (.018) |
-0.241 (.045) |
0.068 (ns) |
0.639 (.0001) |
1 | |||||
| TNF-α | -0.338 (.004) |
-0.389 (.001) |
-0.553 (.0001) |
0.751 (.0001) |
-0.001 (ns) |
-0.454 (.0001) |
-0.396 (.001) |
1 | ||||
| IL-6 | -0.324 (.019) |
-0.399 (.003) |
-0.577 (.0001) |
0.370 (.007) |
0.309 (.026) |
-0.496 (.0001) |
-0.422 (.002) |
0.546 (.0001) |
1 | |||
| MDA | -0.257 (.050) |
-0.344 (.015) |
-0.468 (.001) |
0.334 (.019) |
0.0168 (ns) |
-0.502 (.0001) |
-0.506 (.0001) |
0.452 (.001) |
0.443 (.005) |
1 | ||
| CAT | -0.732 (.0001) |
-0.562 (.0001) |
-0.690 (.0001) |
0.548 (.0001) |
0.194 (ns) |
-0.525 (.001) |
-0.304 (.050) |
0.626 (.0001) |
0.540 (.003) |
0.491 (.004) |
1 | |
| GSH/GSSG | 0.515 (.0001) |
0.420 (.001) |
0.476 (.0001) |
-0.096 (ns) |
-0.309 (.018) |
0.149 (ns) |
0.105 (ns) |
-0.255 (.050) |
-0.315 (.045) |
-0.185 (ns) |
-0.551 (.0001) |
1 |
Legend: Sperm/mL × 106: number of sperm/ml; Motility (%): percentage of progressive sperm motility; Normal morphology (%): percentage of normal sperm morphology assessed with Papanicolaou staining; A (%): percentage of sperm apoptosis assessed with AnV/PI assay; N (%): percentage of sperm necrosis assessed with AnV/PI assays; Ghrelin (ng/mL); Obestatin (ng/mL); TNF-α (pg/mL): tumor necrosis factor-α (pg/mL); IL-6: interleukin 6 (pg/mL); MDA (nmol/mL): malondialdehyde (nmol/mL); GSH (nmol/mg): glutathione (nmol/mg of protein); GSSG (nmol/mg): glutathione oxidized form (nmol/mg of protein); CAT (U/mg): catalase activity (U/mg of protein).