Confronto
Gonadorelin vs. Octreotide
Due peptidi a confronto — identità, base di evidenze, stato legale ed eventi avversi noti.
Identità
Categoria
Ricerca (altro)
Ricerca (altro)
N. CAS
33515-09-2
83150-76-9
Peso molecolare
1182.29 g/mol
1019.24 g/mol
Emivita
0.1 h
1.7 h
Sequenza
pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2D-Phe-Cys-Phe-D-Trp-Lys-Thr-Cys-Thr(ol)Meccanismo d'azione
Gonadorelin
Gonadorelin acts as an agonist at the GnRH receptor on the gonadotroph cells of the pituitary and triggers release of the gonadotropins luteinizing hormone (LH) and follicle-stimulating hormone (FSH). The temporal pattern of receptor exposure is decisive: pulsatile administration mimics the natural hypothalamic secretory rhythm and sustains LH/FSH release, whereas continuous exposure leads to receptor internalisation and desensitisation with subsequent paradoxical suppression of gonadotropins. The latter principle is exploited therapeutically by longer-acting GnRH agonists.
Octreotide
Octreotide is a cyclic octapeptide that selectively binds somatostatin-receptor subtypes SSTR2 and SSTR5. Via G-protein-coupled signalling, adenylyl cyclase is inhibited, reducing the secretion of multiple hormones (growth hormone, IGF-1, glucagon, insulin, VIP, serotonin). Structural stabilisation via a disulfide bridge and D-amino acids extends the half-life relative to natural somatostatin (minutes to several hours).
Base di evidenze
Evidenza più alta
Studio sull'uomo
RCT sull'uomo
Studi
4
5
di cui sull'uomo
4
4
Effetti registrati
4
3
Contraddizioni aperte
1
1
Eventi avversi documentati
2
2
Stato legale
Voci complete
Frequently asked questions
- What is the difference between Gonadorelin and Octreotide?
- Gonadorelin is classified as "Ricerca (altro)", while Octreotide is classified as "Ricerca (altro)". Gonadorelin: Gonadorelin is the synthetic decapeptide with an amino-acid sequence identical to endogenous gonadotropin-releasing hormone (GnRH/LHRH). Historically approved in several countries for diagnostic testing of pituitary function and for fertility indications (pump systems). A defining feature is the opposite effect of pulsatile versus continuous administration: pulsatile stimulates, continuous leads to receptor desensitisation. Octreotide: Synthetic octapeptide somatostatin analog with a longer half-life than endogenous somatostatin. FDA- and EMA-approved since the 1980s for acromegaly and neuroendocrine tumours. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
- Which peptide is better supported by science, Gonadorelin or Octreotide?
- The highest available evidence level is "Studio sull'uomo" for Gonadorelin and "RCT sull'uomo" for Octreotide. 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 Gonadorelin and Octreotide in Germany and the United States?
- Germania: Gonadorelin — Su prescrizione, Octreotide — Su prescrizione. Stati Uniti: Gonadorelin — Su prescrizione, Octreotide — Su prescrizione. These are factual summaries with source and review date on the individual pages.