A peptide that causes arteries to contract (which consequently causes blood pressure to increase).
A 21-amino acid peptide that is a potent vasoconstrictor. It is produced by a wide variety of cell types in the gastrointestinal tract and cells in the vascular wall.
A peptide released from the lining of blood vessels that causes blood vessels to constrict and blood pressure to increase. Endothelins are one of several agents involved in raising blood pressure and contributing to congestive heart failure.