Phoenixin-14 TFA (PNX-14) is a blood-brain barrier (BBB)-penetrable neuropeptide with anxiolytic, cardioprotective, and neuroprotective properties. It modulates pituitary gonadotrophin release by enhancing gonadotropin-releasing hormone (GnRH) receptor mRNA expression and promotes insulin secretion. Additionally, PNX-14 TFA offers protection against ischemia/reperfusion (IR) injury in mice and combats oxidative stress by diminishing reactive oxygen species (ROS) and elevating glutathione (GSH) levels [1] [2] [3].