title: Effect of the chronic administration of oxprenolol on the aortic wall of the normotensive and hypertensive rats.
abstract: 4 groups of male Wistar rats were studied: - normotensive control rats (4 animals) treated with s.c. water - normotensive rats (6 animals) treated with s.c. 5 mg/Kg Oxprenolol - hypertensive control rats (renal artery stenosis) (6 animals) treated with s.c. water - hypertensive rats (renal artery stenosis) (9 animals) treated with s.c. 5 mg/Kg Oxprenolol. The animals were treated and/or operated at six weeks of age and sacrificed at 12 weeks of age. Blood Pressure (BP), Heart Rate (HR), Ventricular Mass (VM) and Thickness of the Aortic Media (A Th) were determined. Oxprenolol did reduce HR but not BP in both normotensive and hypertensive rats: these animals showed a reduced A Th but not a reduced VM compared with untreated control rats. These results suggest a direct effect of Oxprenolol on A Th independently from BP values, but not on VM.
mesh_terms: D000818:Animals; D001011:Aorta / Q000187:drug effects*; D001794:Blood Pressure / Q000187:drug effects; D006339:Heart Rate / Q000187:drug effects; D006977:Hypertension, Renal / Q000473:pathology*; D006978:Hypertension, Renovascular / Q000473:pathology*; D008297:Male; D010096:Oxprenolol / Q000008:administration & dosage / Q000494:pharmacology*; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D010096:Oxprenolol