PACAP 1-27 is widely studied for its neuroprotective and neuroregenerative properties. It is used in research to explore its potential in treating neurodegenerative diseases such as Alzheimer's and Parkinson's. Additionally, PACAP 1-27 is investigated for its role in reducing inflammation and promoting cell survival in brain injuries. Its ability to modulate neurotransmitter release also makes it a focus in studies related to anxiety, depression, and other mood disorders. Furthermore, it is being examined for its potential in enhancing memory and cognitive functions. In the field of ophthalmology, PACAP 1-27 is researched for its protective effects on retinal cells, suggesting applications in treating retinal degeneration. Its vasodilatory effects are also of interest in cardiovascular research, particularly in understanding blood flow regulation and vascular health.