The peak expression of mRNA for the egr-1 co-repressor, nerve growth factor 1-A binding protein-2 (nab2), was observed 30 min after BPC 157 stimulation (Tkalcevic et al., 2007)
Instead, concentrate on factors you can control, like diet and exercise
Increased gut permeability can be caused by increased paracellular epithelial permeability due to decreased tight and adherens junctions, decreased mucus thickness, changes in gut microbiota and/or dysfunctional gut-associated immune responses to pathogens
Oral BPC-157 capsules exist and have some utility for gut-specific indications because of localized activity in the GI tract
Other tiers you will see below: Moderate (one solid trial or a consistent real-world pattern), Emerging (early or contested signals), and Mechanistic Only (animal or lab work with no human data yet)