title: Experimental analysis of development of cardiac insufficiency in old age.
mesh_terms: D000367:Age Factors; D000818:Animals; D001017:Aortic Coarctation / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology*; D004195:Disease Models, Animal; D004734:Energy Metabolism; D006333:Heart Failure / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006439:Hemodynamics; D009200:Myocardial Contraction; D009206:Myocardium / Q000378:metabolism / Q000648:ultrastructure; D009638:Norepinephrine / Q000378:metabolism; D011506:Proteins / Q000378:metabolism; D011817:Rabbits; D051381:Rats
chemical_list: D011506:Proteins; D009638:Norepinephrine