Bioassays
| Age | Hormone | n | Body weight | Prostate | Seminal vesicles | Total testosterone |
|---|---|---|---|---|---|---|
| Young | GDX | 13 | 325.25 ± 7.75 | 0.16 ± 0.08# | 0.40 ± 0.18# | 0.36 ± 0.63# |
| Young | Intact | 13 | 325.35 ± 27.75 | 0.46 ± 0.13 | 0.83 ± 0.19 | 5.61 ± 2.90 |
| Middle-aged | GDX | 12 | 444.75 ± 26.48* | 0.30 ± 0.11*# | 0.89 ± 0.20*# | 0.21 ± 0.18# |
| Middle-aged | Intact | 11 | 456.68 ± 43.96* | 0.75 ± 0.25* | 1.27 ± 0.39* | 4.34 ± 3.42 |
Young rats are 3 mo old; middle-aged rats are 9–12 mo old. Weights are expressed as mean g ± SEM. Plasma testosterone levels are expressed as mean ng/ml ± SEM. GDX, gonadectomy; intact, gonadally intact. P < 0.05: *versus young; #versus intact.