passages.id: split_6_test_1080_passage
passages.type: progene_text
passages.text: 11betaHSD-2 mRNA expression in the fetal kidney increased between 90 days ( 16.8 +/- 1.7 ) and 141-145 days gestation ( 31.7 +/- 4.3 ) , but there was no effect of PR on the levels of 11betaHSD-2 mRNA in the fetal kidney .