Expression of π-class glutathione S-transferase (GST-π) in high grade prostatic intraepithelial neoplasia (PIN)
| GST-π immunostaining of PIN | |||
|---|---|---|---|
| Pattern A | Pattern B | p Value | |
| Group 1, high grade PIN of the transition zone isolated; group 2, high grade PIN of the transition zone associated with prostatic carcinoma (PCa); group 3, high grade PIN of the non-transition zone isolated; group 4, high grade PIN of the non-transition zone associated with PCa; group 5, high grade PIN, isolated and simultaneously present in the transition and non-transition zones. | |||
| Values are number of cases and frequency in parenthesis. | |||
| NS, not significant; trans., transition zone. | |||
| Additional statistics: group 1 v group 3, p = 0.022; group 2 v group 4, p = 0.180. | |||
| Group 1 | 9 (90%) | 1 (10%) | |
| Group 2 | 7 (70%) | 3 (30%) | NS |
| Group 3 | 3 (30%) | 7 (70%) | |
| Group 4 | 3 (30%) | 7 (70%) | NS |
| Group 5 | |||
| Trans. zone | 4 (66%) | 2 (33%) | |
| Non-trans. | 2 (33%) | 4 (66%) | NS |