Figure 6.

Analysis of molecular changes during involution by Western blot: 20 μg protein/lane keratin 18 (Ker 18) and Stat5a; 5 μg protein/lane β-casein (B-cas), WAP and SGP-2 (clusterin) at day 10 of lactation (lac, L) and days 2, 3, and 6 of involution (inv, I). (Graph left Densitometry analysis for three independent mice, mean ± sem calculated as a percentage of the highest value for each blot; (graph right) values relative to keratin 18 calculated as a proportion of the mean (hence no error bars are included). (f+) BLG–Cre/Stat3^flox/+ (solid bars); (f−) BLG–Cre/Stat3^flox/− (open bars).