Dynorphin A-(1- 17) is an endogenous opioid peptide that has been implicated in the pathophysiology of both traumatic brain injury (TBI) and spinal cord injury (SCI).
Dynorphin A-( 1- 17) is an endogenous opioid derived from the prohormone prodynorphin. It acts as endogenous κ-agonist that is resistant to enzymatic degradation. And it is a neuroactive peptide with potent analgesic effects.http://www.creative-peptides.com/product/dynorphin-item-10-101-81-41.html