1. From the Department of Physiology, LSUHSC, New Orleans, La; the Department of Physiology (K.M.), Tulane University Health Sciences Center, New Orleans, La; the Department of Integrative Medical Sciences (C.K., Y.F.P., W.M.C.), Northeastern Ohio Universities, College of Medicine; Texas A&M Health Science Center (D.J.P.), Institute for Regenerative Medicine, Temple, Tex.