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[Aging of the pineal gland]
1St. Petersburg Institute of Bioregulation and Gerontology, 3, Dynamo pr., Saint-Petersburg, Russia.
Advances in Gerontology = Uspekhi Gerontologii
|July 5, 2002
Summary
Age-related pineal gland decline is functional and potentially reversible. A synthetic peptide, Epithalon, increased melatonin and showed benefits like life extension and vision preservation.
Area of Science:
- Gerontology
- Neuroscience
- Molecular Biology
Background:
- Age-related changes in the pineal gland are primarily functional, suggesting potential for intervention.
- Previous interventions like dietary restriction and certain compounds showed promise in mitigating pineal gland impairments.
Purpose of the Study:
- To investigate the effects of a synthetic peptide, Epithalon, on age-related pineal gland function.
- To explore Epithalon's potential to ameliorate age-associated functional decline and related physiological impairments.
Main Methods:
- Administration of Epithalon (Ala-Glu-Asp-Gly), a synthetic peptide based on pineal gland extract Epithalamin, to aged rhesus monkeys.
- Observation of nocturnal melatonin levels and other physiological effects in treated animals.
- Evaluation of Epithalon's impact on lifespan and vision in model organisms (mice, fruit flies, rats).
Main Results:
- Epithalon treatment led to a threefold increase in nocturnal melatonin peaks in old rhesus monkeys.
- Epithalon demonstrated effects overlapping with melatonin, including life extension in mice and fruit flies.
- The peptide postponed vision loss in rats with hereditary pigmental dystrophy.
Conclusions:
- Epithalon shows significant potential in counteracting age-related functional decline in the pineal gland and associated tissues.
- The peptide's broad range of beneficial effects may involve the modulation of conserved transcription factors specific to the pineal gland and retina.