Peptides for Cardiovascular Biology
Overview
2 research peptides are currently studied for cardiovascular biology. This guide ranks them by evidence strength and covers their mechanisms, safety profiles, and current clinical status.
Endothelin-1 — Well-Characterized / ERA Drugs Approved
Evidence Rating: B Category: Cardiovascular / Vasoactive
Endothelin-1 (ET-1) is a 21-amino-acid peptide (MW ~2491.9 g/mol) produced primarily by vascular endothelial cells. It is the most potent endogenous vasoconstrictor known, with effects lasting hours. While ET-1 itself is not used therapeutically, endothelin receptor antagonists (ERAs) such as bosent...
Key claims: ET-1 is the most potent endogenous vasoconstrictor; ET-1 pathway is central to pulmonary arterial hypertension pathogenesis.
Angiotensin 1-7 — Preclinical / Early Research
Evidence Rating: D Category: Cardiovascular / Vasoactive
Angiotensin 1-7 is an endogenous 7-amino-acid peptide (sequence: Asp-Arg-Val-Tyr-Ile-His-Pro, MW ~899.0 g/mol) formed primarily by ACE2-mediated cleavage of angiotensin II. It acts as a counter-regulatory arm of the renin-angiotensin system, opposing the vasoconstrictive and pro-inflammatory actions...
Key claims: Produces vasodilation and lowers blood pressure; Cardioprotective in animal models of heart failure.