Vergelijking
DSIP vs. Nafarelin
Twee peptiden naast elkaar — identiteit, bewijsbasis, juridische status en bekende bijwerkingen.
Identiteit
Categorie
Onderzoek (overig)
Onderzoek (overig)
CAS-nr.
62568-57-4
geen gegevens
Molecuulmassa
848.81 g/mol
geen gegevens
Halfwaardetijd
0.1 h
geen gegevens
Sequentie
Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glugeen gegevens
Werkingsmechanisme
DSIP
DSIP was described in 1977 by the Schoenenberger-Monnier group in Basel as a blood-borne substance reported to induce EEG changes similar to delta sleep in animal models. The exact mechanism remains undefined to this day: no defined receptor, proposed modulation of opioid, GABAergic and glutamatergic systems. Most mechanistic findings stem from preclinical studies of the 1980s and 1990s and were later subjected to contested replication attempts.
Nafarelin
Nafarelin is a potent GnRH agonist: after an initial stimulation ('flare'), continuous receptor occupancy leads to downregulation and thereby suppression of LH, FSH and the downstream sex hormones.
Bewijsbasis
Hoogste bewijs
Humane studie
Humane RCT
Studies
4
0
waarvan bij mensen
1
0
Geregistreerde effecten
3
2
Openstaande tegenstrijdigheden
1
0
Gedocumenteerde bijwerkingen
1
1
Juridische status
Volledige vermeldingen
Frequently asked questions
- What is the difference between DSIP and Nafarelin?
- DSIP is classified as "Onderzoek (overig)", while Nafarelin is classified as "Onderzoek (overig)". DSIP: Synthetic nonapeptide isolated in 1977 by Guido Monnier and Marcel Schoenenberger from the blood of rabbits in delta sleep. Despite the name, the role in sleep regulation is contested and not confirmed by Western RCTs in larger populations. Nafarelin: Nafarelin is a GnRH agonist and the only member of this class delivered as a nasal spray. It is approved for treating endometriosis and central precocious puberty. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
- Which peptide is better supported by science, DSIP or Nafarelin?
- The highest available evidence level is "Humane studie" for DSIP and "Humane RCT" for Nafarelin. 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 DSIP and Nafarelin in Germany and the United States?
- Duitsland: DSIP — Niet goedgekeurd, Nafarelin — Op recept. Verenigde Staten: DSIP — Niet goedgekeurd, Nafarelin — Op recept. These are factual summaries with source and review date on the individual pages.