Population-based study of traumatic brain injury and subsequent α-synucleinopathies

Takeaway

  • Traumatic brain injury (TBI) was not associated with development of α-synucleinopathies generally or with Parkinson’s disease (PD), PD dementia (PDD) or dementia with Lewy bodies (DLB) in individual analysis.

Why this matters

    This population-based study used a broader definition of TBI and found no correlation between TBI and PD, conflicting with earlier studies that identified associations between more-severe TBI and PD.