From: Histological analysis of low dose NMU effects in the rat mammary gland
12 weeks | 22 weeks | 25 and 30 weeks§ | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Dose (mg/kg BW) | 10 | 20 | 30 | 50 | 10 | 20 | 30 | 50 | 10 | 20 | 30 | 50 |
Lactational change | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 4 | 1 | 0 |
Increased acini # | 0 | 0 | 0 | 3 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 |
Hyperplasia | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 3 | 3 | 1 |
DCIS | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 2 | 7 | 18 |