passages.id: split_5_test_2185_passage
passages.type: progene_text
passages.text: The aims of this study were to investigate the expression of RhoA , and the Rho kinases ROCK I and ROCK II in human pregnant myometrium , to evaluate the effects of Rho kinase inhibition on pregnant human myometrial contractility in vitro , and to compare these effects with those of the calcium channel blocker nifedipine .