Molecular pathways documented in preclinical research include: (1) activation of nitric oxide (NO) synthesis via L-arginine/eNOS pathway, (2) transcriptional upregulation of VEGF-A and FGF-2 favouring angiogenesis, (3) modulation of the Egr-1 early transcription factor involved in fibroblast proliferation, (4) interaction with 5-HT2A and dopaminergic receptors in some behavioural models, (5) stabilisation of endothelial function via eNOS modulation and reduction of oxidative stress (8-OH-dG, MDA)
WADA banned BPC-15-class peptides for elite sport competition in 2022
The key, though, to understanding the sensationalism surrounding peptides comes from a criminal defense attorney quoted in a Mens Health piece about this fad: Many bodybuilders consider themselves on par with lab rats, he said
Most common adverse reactions included diarrhea, decreased appetite, emesis, lethargy, weight loss and neutropenia