From: Hormone-induced protection of mammary tumorigenesis in genetically engineered mouse models
Experiment | Group | Tumors/transplants (percentage) | Percentage inhibition | Experiment duration (weeks) |
---|---|---|---|---|
1/1A | Untreated | 16/66 (24) | - | 45 |
 | E/P (5–7) | 2/66 (03)a | 87.5 | 45 |
2 | Untreated | 10/20 (50) | - | 48 |
 | E/P (5–7) | 3/20 (15)a | 70 | 48 |
 | E/P (23–25) | 4/20 (20)a | 60 | 48 |
 | Tamoxifen (11–24) | 0/20 (0)a | 100 | 48 |
3 | Untreated, trans. (3) | 9/20 (45) | - | 58 |
 | E/P (5–7), trans. (3) | 3/15 (20)a | 56 | 58 |
 | Untreated, trans. (11) | 9/20 (45) | - | 58 |
 | E+P (5–7), trans. (11) | 4/20 (20)a | 56 | 58 |
4 | Untreated | 15/15b (100) | Â | 24 |
 | E/P | 6/15b (37) a | 63 | 32 |
 | E | 5/15b (33) a | 67 | 32 |