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Synthetic tetrapeptide bioregulator (Khavinson class)

Cardiogen

Cardiogen (Ala-Glu-Asp-Arg, AEDR) is a synthetic tetrapeptide from the Khavinson family of bioregulators, studied as a heart-tissue peptide in cardiac gene-expression research. It is the subject of a patent describing a myocardium-directed peptide. It is not authorized by Health Canada, and this page is educational only.

By The Peptides Codex Editorial TeamReviewed July 10, 2026
Length
4 aa
Class
Synthetic tetrapeptide bioregulator (Khavinson class)
Function
Short synthetic peptide studied as a heart-tissue bioregulator in cardiac gene-expression research
Context
Investigational bioregulator studied in Russian cardiology and aging research; not authorized by Health Canada

A defined four-residue peptide patented as a myocardium-directed bioregulator.

Also known as: AEDR peptide · Ala-Glu-Asp-Arg

Part of the Neuropeptides & signaling cluster

Overview

Cardiogen (Ala-Glu-Asp-Arg, AEDR) is a synthetic tetrapeptide from the Khavinson family of bioregulators, studied as a heart-tissue peptide in cardiac gene-expression research. It is the subject of a patent describing a myocardium-directed peptide. It is not authorized by Health Canada, and this page is educational only.

Source & context

Biological / chemical source: Synthetic tetrapeptide developed at the St. Petersburg Institute of Bioregulation and Gerontology

Primary research or clinical context: Investigational bioregulator studied in Russian cardiology and aging research; not authorized by Health Canada

A tissue-directed tetrapeptide

Cardiogen is the four-residue sequence Ala-Glu-Asp-Arg, developed within the Khavinson bioregulator program and patented as a peptide substance intended to support myocardial function. The underlying hypothesis is that short, tissue-associated sequences can influence tissue-specific gene expression — a framework applied across the cardiogen, cortagen and thymogen family.

Evidence and regulatory status

Reported experiments come largely from Russian institutes and preclinical models, with limited independent Western replication of cardiac-specific effects. Cardiogen is investigational, sold for research use only, and is not authorized by Health Canada. This page describes its chemistry and research context for education only and makes no therapeutic claim.

Sequence

One-letter sequence commonly cited for Cardiogen (educational; isoforms and modifications may differ):

AEDR

AEDR

A1E2D3R4
Helical wheel projection

Residues plotted ~100° apart around an α-helix — clustering of one color reveals an amphipathic face.

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FAQ about Cardiogen

What is Cardiogen?+

Cardiogen (Ala-Glu-Asp-Arg, AEDR) is a synthetic tetrapeptide from the Khavinson family of bioregulators, studied as a heart-tissue peptide in cardiac gene-expression research. It is the subject of a patent describing a myocardium-directed peptide. It is not authorized by Health Canada, and this page is educational only.

Is Cardiogen an approved medicine?+

Cardiogen is discussed here as a research / educational topic. Investigational bioregulator studied in Russian cardiology and aging research; not authorized by Health Canada. This is not medical advice.

What is the typical length of Cardiogen?+

Cardiogen is commonly described as approximately 4 amino acids (Synthetic tetrapeptide bioregulator (Khavinson class)).

Related peptides

References & further reading

  1. 1.Google Patents — US7662789B2 Peptide substance restoring myocardium function (Ala-Glu-Asp-Arg)
  2. 2.PMC — Peptides as epigenetic modulators: therapeutic implications (Khavinson peptides review)
Disclaimer: Educational content only. Not medical advice. Not instructions for human use. Research peptides and unapproved products may be restricted or illegal to market for human consumption in your jurisdiction. Consult qualified professionals and applicable law.
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Cite this: Peptides Codex — Cardiogen educational profile.
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