Ipamorelin is a GHRP (ghrelin receptor agonist) that amplifies GH pulse amplitude
The evidence base to consult The major trial programs frame the evidence: SURMOUNT and SURPASS for tirzepatide, STEP and SUSTAIN for semaglutide, AWARD for dulaglutide, and LEAD and LEADER for liraglutide
2017 (PMC5405115) established the mechanism: PDRN binding to A2A receptors on fibroblasts triggers VEGF upregulation, fibroblast proliferation, and the M1-to-M2 macrophage shift that supports tissue regeneration
Through a negative feedback mechanism, this stimulates FSH and LH secretion by the pituitary gland, leading to follicular maturation and ovulation
Animal models treated with GLP-1 RAs demonstrate a significant reduction in plasma LPS levels and attenuated intestinal tissue inflammation, reflecting a combined effect of a restored microbiota and direct intestinal GLP-1R signaling (103, 104)