Regulation of PTP-1 and insulin receptor kinase by fractions from cinnamon: implications for cinnamon regulation of insulin signalling - Imparl-Radosevich,J.; Deas,S.; Polansky,M.M.; Baedke,D.A.; Ingebritsen,T.S.; Anderson,R.A.; Graves,D.J. (Horm Res, 1998)