This is a correction notice for a study reporting that chronic cerebral hypoperfusion worsens Parkinson's disease dementia-like symptoms and pathology in 6-OHDA-lesioned rats by disrupting sphingolipid metabolism.

Highlights sphingolipid metabolism as a potential link between vascular insufficiency and PD-related cognitive decline—an actionable metabolic pathway—but the correction notice and missing abstract limit immediate translational or therapeutic insights.