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Answer: Peptide therapy uses short chains of amino acids, called peptides, to send targeted signals in the body

Tanaka, Kenji F

This broad signaling profile is one reason BPC-157 remains a reference compound in regenerative peptide research

10.1039/c4gc01825g 59 HoangA

A retrospective knee-pain report included 16 patients

But, there's actually a little controversy about that
