The 1858 C/T SNP of the PTPN22 gene is a risk factor for HT because it causes an arginine-tryptophan substitution at codon 620 (R620W), because decreased T cell signaling may results in poorer thymic elimination of autoreactive T cells, or an increased function of PTPN22 may lead to a decrease in regulatory T cells (Tregs) responsible for preventing autoimmunity
Kurosawa, K., Hayashi, N., Sato, N., Kamada, T
BPC-157 is a 15-amino acid pentadecapeptide derived from gastric protective protein, acting through pentadecapeptide signalling pathways
Finally, behavioral assessments were limited to specific domains and the observed biochemical changes cannot be interpreted as evidence of global neuroprotection, since behavioral deficits persisted and some molecular markers were negatively affected by treatment