Peptides for Cardiovascular Research
Overview
4 research peptides are currently studied for cardiovascular research. This guide ranks them by evidence strength and covers their mechanisms, safety profiles, and current clinical status.
Atrial Natriuretic Peptide — Approved in Japan / Established Biomarker
Evidence Rating: B Category: Cardiovascular / Natriuretic
Atrial natriuretic peptide (ANP) is a 28-amino-acid hormone (MW ~3080 g/mol) secreted primarily by atrial cardiomyocytes in response to atrial stretch from volume overload. It is a key regulator of blood volume, sodium balance, and blood pressure. A recombinant form, carperitide (hANP), is approved ...
Key claims: Reduces pulmonary congestion and dyspnea in acute heart failure; Promotes natriuresis and diuresis.
B-type Natriuretic Peptide — Established Biomarker / Therapeutic Basis
Evidence Rating: B Category: Cardiovascular / Natriuretic
B-type natriuretic peptide (BNP) is a 32-amino-acid cardiac hormone (MW ~3464 g/mol) secreted primarily by ventricular cardiomyocytes in response to myocardial wall stress from volume overload or pressure overload. It is both a critical diagnostic biomarker for heart failure (BNP/NT-proBNP assays) a...
Key claims: BNP/NT-proBNP levels accurately diagnose heart failure; BNP-guided therapy may improve heart failure outcomes.
Apelin — Preclinical / Early Research
Evidence Rating: D Category: Cardiovascular / Vasoactive
Apelin is an endogenous peptide ligand for the APJ receptor (APLNR), existing in multiple bioactive forms including apelin-13, apelin-17, and apelin-36 derived from a 77-amino-acid preproapelin precursor. It plays important roles in cardiovascular regulation, fluid homeostasis, and cardiac inotropy....
Key claims: Apelin produces positive inotropy without increasing oxygen demand; Apelin levels are reduced in heart failure.
Adrenomedullin — Biomarker / Early Research
Evidence Rating: D Category: Cardiovascular / Vasoactive
Adrenomedullin is a 52-amino-acid vasodilatory peptide (MW ~6028 g/mol) originally isolated from human pheochromocytoma tissue. It is widely expressed in the cardiovascular system, lungs, kidneys, and adrenal glands, with potent vasodilatory, natriuretic, and cardioprotective properties. It is curre...
Key claims: MR-proADM is a strong prognostic biomarker in sepsis; MR-proADM predicts mortality in acute heart failure.
