- Regulation of phosphoinositide turnover in endothelium from human pulmonary artery, aorta and umbilical vein. Antagonistic action on the beta-adrenoceptor coupled adenylate cyclase system. Grigorian, G.Y., Mirzapoyazova, T.Y., Resink, T.J., Danilov, S.M., Tkachuk, V.A. J. Mol. Cell. Cardiol. (1989)