Effects of psychedelics on neurogenesis and brain plasticity: A systematic review
bioRxiv (Cold Spring Harbor Laboratory) July 20, 2023 Rafael V Lima Da Cruz, Richardson N Leao, Thiago C Moulin preprint
New neurons continue to be generated in the mammalian brain throughout life, a process linked to the HPA axis and mood disorders. Psychedelic compounds—including phenethylamines, tryptamines, cannabinoids, and others—have emerged as potential treatments for neuropsychiatric disorders, with evidence suggesting they increase adult neurogenesis. This systematic review examined 68 studies from a total of 205 articles, covering CB1 agonists, NMDA antagonists, harmala alkaloids, tryptamines, and entactogens. The findings describe how different psychedelics affect the birth of new neurons and brain plasticity, providing a comprehensive picture that may inform future therapeutic strategies for neuropsychiatric disorders.