Melatonin and pineal gland peptides are able to correct the impairment of reproductive cycles in rats
Arutjunyan A, Kozina L, Milyutina Y, Korenevsky A, Stepanov M, Arutyunov V · 2012 · Current aging science. 2012;5(3):178-85. PMID 23237594
Nonpregnant reproductive physiology · Pregnancy and offspring evidence review ↗
Reported findings and study design
Narrative findings; numerical extraction incomplete
Epithalamin reportedly restored hypothalamic norepinephrine rhythms, while Epitalon had a stronger dopamine-rhythm effect in another hypothalamic region. The experiment used 1,2-dimethylhydrazine, not a pregnancy model or a methionine-only intervention.
Single 1,2-dimethylhydrazine exposure in female rats; region- and circadian-time-specific catecholamine measurements after melatonin or pineal-peptide interventions.
| Measure | Result | Comparison, timing and statistics |
|---|---|---|
| Epithalamin | Recovery of norepinephrine diurnal dynamics in medial preoptic area | Norepinephrine decreased between 09:30 and 11:00 circadian time |
| Epitalon | Dopamine remained low at 05:00 and increased by 11:00 circadian time | Median eminence/arcuate region; no numerical concentrations supplied |
| Pregnancy and fertility outcomes | No pregnant cohort, congenital-anomaly rate or verified live-birth benefit in the checked abstract |
Reproductive-cycle neurochemistry is not pregnancy-safety evidence or proof of improved human fertility. Epitalon is a defined tetrapeptide; Epithalamin is a bovine pineal peptide extract. Their findings are not interchangeable. Doses, n, allocation, quantitative effect sizes and adverse-event surveillance unavailable in the checked abstract.
Source for the extracted data ↗ · Checked 2026-11-08
Molekul summary of the linked publication. Educational information, not medical advice. Seek qualified healthcare help for medical conditions.
Methods, limitations & source review
Study limitations
- Reproductive-cycle neurochemistry is not pregnancy-safety evidence or proof of improved human fertility.
- Epitalon is a defined tetrapeptide; Epithalamin is a bovine pineal peptide extract. Their findings are not interchangeable.
- Doses, n, allocation, quantitative effect sizes and adverse-event surveillance unavailable in the checked abstract.
Publication counts are not counts of independent trials. Reviews, translations and reports sharing participants may overlap. Findings apply to the studied preparation, population and endpoints.
Document format: Publication record and available text
Review depth: Indexed original abstract; full methods and outcome tables not recovered
Related-report group: pregnancy-epitalon-epithalamin-cycles-2012. Reports in this group are not assumed to be independent trials.
Source access and review scope
Indexed original abstract; full methods and outcome tables not recovered
Recorded source-check date: 2026-11-08. This date does not imply a completed systematic review.
Source type: Original journal publication
Citation and original source
Original source: Arutjunyan A, Kozina L, Milyutina Y, Korenevsky A, Stepanov M, Arutyunov V. Melatonin and pineal gland peptides are able to correct the impairment of reproductive cycles in rats Current aging science. 2012;5(3):178-85. PMID 23237594 2012.
Molekul research summary: https://molekul.io/research/pregnancy-epitalon-epithalamin-cycles-2012. Cite the original publication for its findings and this page when referring to Molekul’s summary or evidence appraisal.
Bibliography entryRelated compound profiles
Epitalon
Synthetic AEDG has direct human hormone and retinal findings. Long-term Epithalamin mortality studies concern the extract and are kept separate.
Epithalamin
A pineal-gland tissue extract containing a mixture of peptides. Human aging and melatonin studies of this preparation must be distinguished from research on synthetic Epitalon (AEDG).