Fig. 3From: Changes in plasma PLAC-1 concentration and its expression during early-mid pregnancy in bovine placental tissues – a pilot studyDifferent expression of PLAC1 mRNA in the cell cultures – comparison of PLAC1 mRNA expression between maternal and foetal cell cultures from the 5th month of pregnancy (a), and comparison of PLAC1 mRNA expression in the maternal cell cultures in the 4th and in the 5th month of pregnancy (b). Different letters represent statistical significance at p < 0.01Back to article page