Table 2.
Correlations between the mouse body weight, average graft weight, or total graft weight and characteristics of testis tissue xenografts at the time of sacrifice at 8 months postgrafting.
| Mouse body weight (g) | Average graft weight (mg) | Total graft weight (mg) | ||||
|---|---|---|---|---|---|---|
| r | P | r | P | r | P | |
| Mouse body weight (g) | — | — | 0.2 | .3 | 0.3 | .1 |
| Graft recovery rate (%) | −0.02 | .9 | 0.3 | .1 | 0.3 | .1 |
| Average graft weight (mg) | 0.2 | .3 | — | — | 0.8 | .0001 |
| Total graft weight (mg) | 0.3 | .1 | 0.8 | .0001 | — | — |
| Tubular diameter (μm) | 0.5 | .002 | 0.3 | .1 | 0.3 | .1 |
| Tubular density (mm2) | −0.1 | .4 | −0.01 | .9 | −0.04 | .8 |
| Vesicular gland index (%) | 0.1 | .4 | 0.4 | .02 | 0.4 | .02 |
| Spermatozoa (% tubules) | 0.07 | .1 | 0.5 | .01 | 0.5 | .001 |
| Elongated spermatids (% tubules) | 0.3 | .1 | 0.5 | .002 | 0.7 | .0001 |
| Round Spermatids (% tubules) | 0.3 | .07 | 0.5 | .001 | 0.6 | .0004 |
| Spermatocytes (% tubules) | 0.2 | .3 | −0.1 | .6 | 0.01 | .96 |
| Spermatogonia (% tubules) | −0.01 | .97 | −0.5 | .01 | −0.4 | .01 |
| Sertoli-cell-only (% tubules) | −0.4 | .02 | −0.5 | .01 | −0.6 | .0002 |
| Degenerated (% tubules) | 0.1 | .6 | −0.2 | .3 | −0.3 | .1 |
Pearson's correlation coefficients (r) were calculated for the combined data from four different groups of recipient mice grafted with different numbers of porcine testis tissue fragments, and the grafts evaluated at 8 months postgrafting for spermatogenic development. Correlation coefficients were considered significant when P < .05.