Collieret al. revisit the idea that age-related and Parkinson's disease-related changes in midbrain dopamine neurons are unrelated. They review studies showing that markers of cellular risk factors accumulate with age in a pattern that mimics the pattern of degeneration seen in Parkinson's disease and propose that ageing induces a pre-parkinsonian state.
- Timothy J. Collier
- Nicholas M. Kanaan
- Jeffrey H. Kordower
