Figure 5. The level of PRLR in GT1-7 at different times was detected by western blot assay. The levels of PRLR were normalized to control. (A) Representative blot of PRLR level. (B) Quantitative relative gray values of PRLR protein level. The results were presented as mean ± SD (n = 3). **p < 0.01 vs. Control group, ##p < 0.01 vs. HPRL group.