The abstract is read at the publisher; the summary is JClub's.
In baboons, intrastriatal injection of patient-derived α-synuclein aggregates increases phosphorylated tau pathology, with LA (n = 18) and SA (n = 12) both exceeding controls.
- Why it matters: Co-pathologies in neurodegenerative disease obscure mechanisms, and it is unclear how distinct α-synuclein aggregate assemblies relate to limbic tau pathology relevant to PD dementia.
- What they did: Using a well-characterized baboon cohort, investigators injected small (SA) or large aggregates (LA) and assessed biochemical and histopathological measures at 6, 12, or 24 months.
- The result: SA produced tangle-like phosphorylated tau lesions and neuropil threads without time-point differences, while LA showed neuropil threads with few glial lesions and lacked phosphorylated tau intraneuronal aggregates; phosphorylated tau lesions tracked with phosphorylated synuclein pathology.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.