PMID-12096440 – Aging of the Pineal Gland and Epitalon
Khavinson VKh, Golubev AG. Aging of the pineal gland. Adv Gerontol. 2002;9:67-72.
Quick Reference
| Property | Value |
|---|---|
| PMID | 12096440 |
| DOI | — |
| Year | 2002 |
| Journal | Advances in Gerontology (Uspekhi Gerontologii) |
| Study Type | Narrative Review |
| Evidence Level | V |
| Sample | Review (includes primate data from aged rhesus monkeys) |
| Peptide(s) Studied | Epitalon |
Key Findings
- Age-related changes in the pineal gland are primarily functional (reversible) rather than structural (irreversible), suggesting the gland retains the capacity to respond to pharmacological stimulation even in advanced age
- Epitalon administration produced a threefold increase in nocturnal melatonin peaks in aged rhesus monkeys, demonstrating restoration of pineal function in a primate model
- The review also summarizes Epitalon's lifespan-extending effects observed in mice and Drosophila melanogaster, consolidating previously published findings from the group
Study Design
This is a narrative review summarizing the authors' body of work on pineal gland aging and the effects of the synthetic tetrapeptide Epitalon (Ala-Glu-Asp-Gly) on pineal function restoration. The review integrates data from in vitro studies, rodent lifespan experiments, invertebrate (Drosophila) models, and primate (rhesus monkey) melatonin measurements.
Limitations
- Narrative review format with no systematic search methodology or formal quality assessment of included studies
- The primate melatonin data, while notable, appears to come from a small number of animals (exact n not clearly specified)
- Published in a Russian-language gerontology journal with limited international peer review exposure
- Methodological note: The review is authored by Khavinson, who developed Epitalon and leads the research group that has produced the vast majority of published data on the peptide. The review consolidates the group's own findings without independent validation.
Clinical Relevance
The threefold increase in nocturnal melatonin in aged primates is the most clinically relevant finding, as it suggests Epitalon could restore age-related melatonin decline in a model closely resembling human physiology. If confirmed independently, this could support applications in age-related sleep disruption and circadian rhythm disorders. However, no human clinical trials have been conducted.
Related
#research #narrative-review #evidence-level-V