When exposed to zinc in vitro , DCs derived from bone marrow exhibited a tolerogenic profile, characterized by reduced surface MHC-II expression and increased levels of tolerogenic markers such as Programmed Death-Ligand (PD-L) 1, PD-L2 and the tryptophan degrading enzyme, Indoleamine 2,3-dioxygenase (IDO)
A second family, BPC-157 and TB-500, targets tissue repair rather than the GH axis: BPC-157 is proposed to work through angiogenesis, nitric-oxide signaling, and anti-inflammatory activity, while TB-500 binds actin to promote cell migration, blood-vessel formation, and collagen deposition
In a bodybuilding context, improved local blood flow may support nutrient delivery, waste removal, and tissue repair after training stress or injury
Endocr Practice: Official J Am Coll Endocrinol Am Association Clin Endocrinologists 30(2):160171 Caruso I, Cignarelli A, Sorice GP, Natalicchio A, Perrini S, Laviola L et al (2022) Cardiovascular and Renal effectiveness of GLP-1 receptor agonists vs