Confronto
Afamelanotide vs. Teduglutid
Due peptidi a confronto — identità, base di evidenze, stato legale ed eventi avversi noti.
Identità
Categoria
Ricerca (altro)
Ricerca (altro)
N. CAS
75921-69-6
197922-42-2
Peso molecolare
1646.87 g/mol
3752.13 g/mol
Emivita
12 h
nessun dato
Sequenza
Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2nessun dato
Meccanismo d'azione
Afamelanotide
Afamelanotide is a synthetic analogue of α-melanocyte-stimulating hormone. It differs from native α-MSH by two substitutions — norleucine at position 4 and D-phenylalanine at position 7 — which make it metabolically more stable and more potent. As an agonist at the melanocortin-1 receptor (MC1R) on melanocytes, it activates adenylate cyclase, raises cAMP and increases tyrosinase activity via the transcription factor MITF. This shifts pigment synthesis toward eumelanin, which absorbs UV and visible light and has antioxidant properties — the presumed mechanism of photoprotection in EPP.
Teduglutid
Teduglutide activates the GLP-2 receptor, promoting growth and regeneration of small-intestinal villi, increasing nutrient and fluid absorption and thereby reducing dependence on parenteral nutrition. The glycine substitution at position 2 makes it resistant to rapid breakdown by DPP-4.
Base di evidenze
Evidenza più alta
RCT sull'uomo
RCT sull'uomo
Studi
4
2
di cui sull'uomo
4
2
Effetti registrati
4
2
Contraddizioni aperte
1
0
Eventi avversi documentati
4
2
Stato legale
Voci complete
Frequently asked questions
- What is the difference between Afamelanotide and Teduglutid?
- Afamelanotide is classified as "Ricerca (altro)", while Teduglutid is classified as "Ricerca (altro)". Afamelanotide: Afamelanotide (brand name Scenesse) is a synthetic 13-amino-acid analogue of α-melanocyte-stimulating hormone (α-MSH) and a melanocortin-1 receptor agonist. Unlike most peptides covered here, it is a regularly approved medicine: EMA approval in 2014/2015, FDA approval in 2019, in each case as a subcutaneous implant for the prevention of phototoxicity in adults with erythropoietic protoporphyria (EPP). It promotes eumelanin formation in the skin. Teduglutid: Teduglutide is a DPP-4-resistant analog of GLP-2 (glucagon-like peptide-2). It promotes growth and function of the intestinal mucosa and is approved for treating short bowel syndrome. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
- Which peptide is better supported by science, Afamelanotide or Teduglutid?
- The highest available evidence level is "RCT sull'uomo" for Afamelanotide and "RCT sull'uomo" for Teduglutid. 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 Afamelanotide and Teduglutid in Germany and the United States?
- Germania: Afamelanotide — Su prescrizione, Teduglutid — Su prescrizione. Stati Uniti: Afamelanotide — Su prescrizione, Teduglutid — Su prescrizione. These are factual summaries with source and review date on the individual pages.