does ghk-cu cause negative feedback loops or hormone suppression Growth regulates neuroendocrine responses to weight loss via AgRP neurons 9.2 Endocrine System Basics –

And peptides like BPC-157 may result in the growth of more blood vessels, which could be a red flag

NO and polyamine synthesis compete for often-limiting L-arginine and L-ornithine synthetic substrates (Figure 1), with important implications for key receptors of nitrergic neurotransmission

What Is BPC-157 and How Does It Work Body Protection Compound 157 (BPC-157) is a synthetic peptide consisting of 15 amino acids in a specific sequence: Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val

Frequently studied in neurobiology contexts related to sleep/circadian research models and stress-axis signaling themes (model-dependent)