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Safety concerns included uncharacterized immunogenicity risks, inadequate impurity and endotoxin testing in available raw material, the unresolved free-base versus acetate salt form distinction, and, for BPC-157 specifically, an angiogenesis mechanism that raises theoretical concerns for patients with undiagnosed tumors

These observations align with improved peripheral blood flow from nitric oxide-mediated vasodilation, though they could also reflect placebo effects or confirmation bias

Long-term clinical trials are crucial to assess the safety and efficacy of antiangiogenic therapies in different patient populations and disease stages

Stojowska-Swdrzyska K, upkowska A, Kuczyska-Winik D, Laskowska E (2021) Antibiotic heteroresistance in Klebsiella pneumoniae

Regulatory uncertainty limits its medical positioning, currently placing it in the grey zone of experimental peptides These limitations make clinical endorsement premature, especially in regulated health systems or for medical-grade use

Senescent glia link mitochondrial dysfunction and lipid accumulation