Description: The endothelins is a family of structurally and pharmacologically distinct peptides, which has been identified and sequenced in Dog Canineas. Three isoforms of Dog Caninea endothelin have been identified: endothelin-1, -2, and -3. Endothelin-1 is a potent, 21-amino acid vasoconstrictor peptide produced by vascular endothelial cells. Endothelins are 21-amino acid vasoconstricting peptides produced primarily in the endothelium having a key role in vascular homeostasis. Endothelins are