Pinealon Research Overview: EDR Tripeptide and Cellular Signaling

Pinealon identity

Pinealon is a synthetic tripeptide with the sequence Glu-Asp-Arg, abbreviated EDR. Its three-residue identity is the foundation for distinguishing Pinealon from neighboring short-peptide bioregulators and for interpreting sequence-specific research.

Pinealon and Epithalon belong to a broad short-peptide-bioregulator research context, but they are not interchangeable. Pinealon is EDR. Epithalon is the tetrapeptide Ala-Glu-Asp-Gly. Differences in sequence, length, and experimental design mean observations associated with one compound should not be assigned to the other.

Researchers reviewing the material can find current vial formats and batch-documentation access on the Pinealon catalog listing.

Cellular and CNS-signaling research context

Published Pinealon work has examined neuronal and cellular model systems using readouts such as cell viability, free-radical levels, proliferative activity, gene expression, and protein synthesis. These are experimental endpoints rather than claims about outcomes beyond the studied systems.

The EDR sequence has also been examined in work proposing interactions between short peptides and gene-regulatory processes. These models explore whether sequence-specific contacts correlate with changes in transcriptional or protein-synthesis measurements. The proposed pathways remain subjects for experimental testing and should not be treated as settled mechanisms.

Interpreting proposed mechanisms

Mechanistic discussions around Pinealon commonly involve three levels of evidence:

1. Chemical identity: a defined Glu-Asp-Arg tripeptide.
2. Measured cellular readouts: changes reported in viability, free-radical, proliferation, expression, or synthesis assays.
3. Proposed molecular explanations: sequence-specific gene-regulatory interactions that require further independent validation.

Keeping those levels separate prevents an observed assay result from being overstated as proof of a broader mechanism. Cell type, assay conditions, concentration, exposure window, and measurement method can each affect a result.

Pinealon and Epithalon are distinct

Pinealon's EDR sequence does not contain Epithalon's Ala-Glu-Asp-Gly sequence. The compounds should therefore be cataloged, cited, and evaluated independently. A study naming Epithalon does not establish a Pinealon finding, and a Pinealon observation does not characterize Epithalon.

Research limitations

The Pinealon literature is limited and includes a concentrated authorship base. Replication across independent laboratories, standardized materials, and comparable assay designs remains important. Researchers should verify the exact sequence, purity specification, batch identity, controls, and analytical method before comparing results across reports.

No Pinealon-specific analytical report is currently attached to the catalog listing. The stated catalog specification is separate from an individual batch result; documentation should be checked against the identifier on the received unit.

Displayed reference

Khavinson V et al. “Pinealon increases cell viability by suppression of free radical levels and activating proliferative processes.” *Rejuvenation Research*. 2011. PMID 21978084. Listed for cellular-model context only.

Research use only. This material and article are provided solely for controlled laboratory research. Observations described here are limited to their reported experimental systems.

Running the numbers for a protocol? Use the research calculators to convert mg, mL, and syringe units.