ABSTRACTS C01 Pharmacodynamics of Entresto® (Sacubitril/Valsartan) Versus Placebo in Dogs with Preclinical Myxomatous Mitral Valve Disease C02 Trimethylamine-N-Oxide and its Precursors in Dogs with Degenerative Mitral Valve Disease Comparison Between the Effects of Torsemide and Furosemide on the Renin-Angiotens