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endothelin-1 protein receptor antagonist (EN-doh-THEE-lin-1 PROH-teen reh-SEP-ter an-TA-guh-nist)
|A substance that blocks the binding of the endothelin-1 protein to its receptor. Endothelin-1 is a small molecule that causes changes in blood vessels and helps regulate blood pressure. It can also stimulate the growth of some types of cells.|