1. Renal autoregulation: new perspectives regarding the protective and regulatory roles of the underlying mechanisms Rodger Loutzenhiser,1 Karen Griffin,2 Geoffrey Williamson,3 and Anil Bidani2 1Smooth Muscle Research Group, University of Calgary, Alberta, Canada; 2Department of Internal Medicine, Loyola University Medical Center and Edward Hines, Jr. Veterans Affairs Hospital, Maywood, Illinois; and 3Department of Electrical and Computer Engineering, Illinois Institute of Technology, Chicago, Illinois