Vergelijking
MOTS-c vs. Selank
Twee peptiden naast elkaar — identiteit, bewijsbasis, juridische status en bekende bijwerkingen.
Identiteit
Categorie
Onderzoek (overig)
Onderzoek (overig)
CAS-nr.
1627580-64-6
129954-34-3
Molecuulmassa
2174.61 g/mol
751.85 g/mol
Halfwaardetijd
geen gegevens
0.3 h
Sequentie
Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-ArgThr-Lys-Pro-Arg-Pro-Gly-ProWerkingsmechanisme
MOTS-c
MOTS-c arises from a short open reading frame located in the 12S rRNA region of the mitochondrial genome — unlike most peptides it is therefore not encoded by nuclear DNA. Mechanistically, preclinical work describes MOTS-c as modulating the folate cycle and the de novo purine biosynthesis tethered to it, thereby affecting the AMP/ATP ratio and, downstream, AMP-activated protein kinase (AMPK). Under metabolic stress, an AMPK-dependent translocation of the peptide into the cell nucleus and involvement in the regulation of stress-responsive genes (including via antioxidant-response-element-regulated transcription factors) have also been reported. These models derive predominantly from cell culture and rodents; the extent to which they reflect human physiology after administration of exogenous synthetic MOTS-c is not established by human studies.
Selank
Selank is a glyproline-tuftsin analog. Proposed mechanisms include modulation of the GABAergic system, effects on serotonin bioavailability, and influence on enkephalinases. Animal studies show anxiolytic and neuroprotective markers; a clear receptor target is not established.
Bewijsbasis
Hoogste bewijs
Humane studie
Humane studie
Studies
4
4
waarvan bij mensen
1
2
Geregistreerde effecten
4
3
Openstaande tegenstrijdigheden
1
1
Gedocumenteerde bijwerkingen
1
1
Juridische status
Volledige vermeldingen
Frequently asked questions
- What is the difference between MOTS-c and Selank?
- MOTS-c is classified as "Onderzoek (overig)", while Selank is classified as "Onderzoek (overig)". MOTS-c: MOTS-c is a 16-amino-acid mitochondrial-encoded peptide (mitochondrial-derived peptide, MDP) whose open reading frame lies within the 12S rRNA region of mitochondrial DNA. In basic research (including the laboratories of Changhan Lee and Pinchas Cohen) it is described as a regulator of metabolic homeostasis and an activator of the AMPK pathway, and is sometimes discussed as an 'exercise mimetic'. The evidence comes almost entirely from cell and animal models; controlled human trials of MOTS-c as a therapeutic are lacking. It is not approved as a medicine anywhere and is traded on the grey market as a research chemical. Selank: Synthetic heptapeptide derived from natural tuftsin. Approved as an anxiolytic (Selank) in Russia and some CIS states. Western phase-3 trials are absent; efficacy assessment relies on Russian research literature. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
- Which peptide is better supported by science, MOTS-c or Selank?
- The highest available evidence level is "Humane studie" for MOTS-c and "Humane studie" for Selank. A higher evidence level means more robust data, but says nothing about suitability for an individual. The full body of evidence is on each peptide's own page.
- What is the legal status of MOTS-c and Selank in Germany and the United States?
- Duitsland: MOTS-c — Niet goedgekeurd, Selank — Niet goedgekeurd. Verenigde Staten: MOTS-c — Niet goedgekeurd, Selank — Niet goedgekeurd. These are factual summaries with source and review date on the individual pages.