Effects of Parity and Serum Prolactin Levels on the Incidence and Regression of DMBA-Induced Tumors in OFA hr/hr Rats
Figure 5
β-Casein content and expression of mRNA for hormones receptors in tumors from DMBA-treated rats. (a) Tumor tissue from nulliparous rats (Null) contains significantly lower amounts of β-casein than tumors from implanted (I) or primiparous (PL) rats ( and , resp.). (b) The expression of mRNA of ERβ is lower in the tumors of I rats than in the other two groups (). (c) mRNA expression of PR is significantly higher in I rats with respect to Null or PL rats ().
