Chronic nicotine reduces nigral dopaminergic activity and remodels pedunculopontine cholinergic subpopulations
Rita Yu-Tzu Chen, Hassan Hosseini, Skylar Hall, S. Zhang, Rebekah C. Evans
This study examines how chronic nicotine affects dopaminergic neurons in the substantia nigra and cholinergic neurons in the pedunculopontine nucleus, revealing changes in their activity and morphology that may contribute to Parkinson's disease resilience.
bioRxiv · Feb 14, 2026 · PreprintNeuroscience