<unk> s are peptides with receptors and effects in many body organs.<unk>  constricts blood vessels and raises blood pressure. The<unk> s are normally kept in balance by other mechanisms, but when overexpressed, they contribute to high blood pressure (hypertension), heart disease, and potentially other diseases.<unk> s are 21-amino acid vasoconstricting peptides produced primarily in the<unk> m having a key role in vascular homeostasis.<unk> s are implicated in vascular diseases of several organ systems, including the heart, lungs, kidneys, and brain. As of 2018,<unk> s remain under extensive basic and clinical research to define their roles in several organ systems.
Endothelin
Endrin
Angiotensin II 
Prostacyclin
Vasopressin 
Vasopressin
Adrenomedullin
Bryostatin