Here, we investigated the potential of α-synuclein fibrils to induce neurological disease in TgM83<sup>+/-</sup> mice expressing the A53T mutant of human α-synuclein after oral or intravenous challenge and compared it to intraperitoneal and intracerebral challenge.
Previously, we reported that intracranial inoculation of brain homogenate from multiple system atrophy (MSA) patient samples produces neurological disease in the transgenic (Tg) mouse model TgM83<sup>+/-</sup>, which uses the prion protein promoter to express human α-synuclein harboring the A53T mutation found in familial Parkinson's disease (PD).