Dynorphin A 1-10 is primarily studied for its role in the central nervous system, where it acts as a neurotransmitter or neuromodulator. It is involved in regulating pain perception, stress responses, and emotional states. Research suggests its potential application in understanding and treating chronic pain conditions, as it interacts with kappa opioid receptors to modulate pain pathways. Additionally, it is being explored for its role in addiction and mood disorders, as dysregulation of dynorphin systems has been linked to depression, anxiety, and substance abuse. Its use in neurological research helps uncover mechanisms of opioid signaling and its impact on behavior and physiology.