Pipecolic acid is an orally bioavailable, blood-brain barrier-permeable metabolite of lysine with antioxidant, inhibitor, and inducer activity. Pipecolic acid modulates the YAP-GPX4 signaling pathway, reduces retinal vascular tube formation, and mitigates ferroptosis. Pipecolic acid potentiates voltage-sensitive Ca2+ channel currents and induces neuronal apoptosis. Pipecolic acid can be used for the research of diabetic retinopathy[1][2].
