Confronto
Desmopressin vs. Selank
Due peptidi a confronto — identità, base di evidenze, stato legale ed eventi avversi noti.
Identità
Categoria
Ricerca (altro)
Ricerca (altro)
N. CAS
16679-58-6
129954-34-3
Peso molecolare
1069.2 g/mol
751.85 g/mol
Emivita
3 h
0.3 h
Sequenza
Mpa-Tyr-Phe-Gln-Asn-Cys-Pro-D-Arg-Gly-NH2 (Disulfid 1-6)Thr-Lys-Pro-Arg-Pro-Gly-ProMeccanismo d'azione
Desmopressin
Desmopressin is a structurally modified analogue of the nine-residue peptide hormone vasopressin. Deamination at the N-terminus (1-deamino) and replacement of L-arginine by D-arginine at position 8 prolong the duration of action and render the compound largely selective for the vasopressin V2 receptor, while the V1-mediated vasoconstrictive effect is strongly reduced. Acting on V2 receptors in the renal collecting ducts, it promotes insertion of aquaporin-2 water channels into the apical membrane, increasing water reabsorption and reducing urine volume (antidiuretic effect). In addition, via V2 receptors on the vascular endothelium, desmopressin stimulates the release of von Willebrand factor and factor VIII from endothelial stores (Weibel-Palade bodies), improving primary haemostasis.
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.
Base di evidenze
Evidenza più alta
RCT sull'uomo
Studio sull'uomo
Studi
4
4
di cui sull'uomo
4
2
Effetti registrati
4
3
Contraddizioni aperte
1
1
Eventi avversi documentati
2
1
Stato legale
Voci complete
Frequently asked questions
- What is the difference between Desmopressin and Selank?
- Desmopressin is classified as "Ricerca (altro)", while Selank is classified as "Ricerca (altro)". Desmopressin: Desmopressin (DDAVP) is a synthetic analogue of the endogenous hormone vasopressin (antidiuretic hormone, ADH). Deamination of the first amino acid and substitution of L-arginine with D-arginine give it selective activity at the V2 receptor with strongly reduced pressor (V1) activity. It has been approved for decades for indications including central diabetes insipidus, primary nocturnal enuresis, and bleeding tendency in von Willebrand disease type 1 and mild haemophilia A. The principal safety concern is hyponatremia or water intoxication. 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, Desmopressin or Selank?
- The highest available evidence level is "RCT sull'uomo" for Desmopressin and "Studio sull'uomo" 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 Desmopressin and Selank in Germany and the United States?
- Germania: Desmopressin — Su prescrizione, Selank — Non approvato. Stati Uniti: Desmopressin — Su prescrizione, Selank — Non approvato. These are factual summaries with source and review date on the individual pages.