Mod GRF (1-29)
Tetrasubstituted synthetic analogue of GHRH(1-29), traded on the grey market as "CJC-1295 without DAC". Closely related to sermorelin (GHRH 1-29); a short-acting growth-hormone-releasing-hormone analogue often combined with a GHRP/ghrelin mimetic. Not approved as a medicinal product. Direct human trials of this exact analogue are essentially absent; the factual basis relies on related GHRH(1-29) analogues.
Mechanism of action
Synthetic analogue of the first 29 amino acids of growth-hormone-releasing hormone (GHRH 1-29). Four amino-acid substitutions (D-Ala at position 2, Gln at 8, Ala at 15, Leu at 27) are intended to slow degradation by dipeptidyl peptidase-IV and increase enzymatic stability relative to native GHRH. Like the native hormone and sermorelin, it binds the GHRH receptor on somatotroph cells of the anterior pituitary; mechanistically this is expected to stimulate endogenous growth-hormone release. Unlike the DAC-conjugated CJC-1295 variant, it lacks albumin binding, so its duration of action remains short.
L'evidenza in sintesi
Cosa mostrano gli studi
Dove gli studi divergono
Do the human data on GHRH(1-29)/sermorelin apply directly to the tetrasubstituted Mod GRF (1-29)?
Farmacocinetica
Curva teorica di concentrazione con un'emivita di 0.5 h. Modello puramente farmacocinetico — non una raccomandazione di dose.
Open in PK tool →Uso più sicuro e rischi
Interazioni e combinazioni
Osservazioni aneddotiche
Stato legale per paese
Calcolatore di ricostituzione
I peptidi arrivano come polvere secca. Una volta disciolti in un liquido (ricostituzione), questo calcolatore risponde a una sola domanda: quanta sostanza c'è in un millilitro di soluzione dopo?
- 1Inserisci la quantità di sostanza del flacone (riportata sull'etichetta).
- 2Inserisci quanto solvente aggiungi.
- 3Risultato = concentrazione in mg per mL.
Cofattori
Questi cofattori si riferiscono alla classe del peptide, non a un uso specifico. Nessuna raccomandazione, nessun dosaggio.
Registro degli studi
Pharmacokinetics of growth hormone-releasing hormone(1-29)-NH2 and stimulation of growth hormone secretion in healthy subjects after intravenous or intranasal administration
Treatment with GHRH(1-29)NH2 in children with idiopathic short stature induces a sustained increase in growth velocity
Sermorelin: a review of its use in the diagnosis and treatment of children with idiopathic growth hormone deficiency
Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults
Fonti e metodologia
Ricevi nuovi studi su Mod GRF (1-29)
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