Latest News

There has long been interest in whether monoamine oxidase type B (MAO-B) inhibitors slow progression of Parkinson’s disease (PD) and improve long-term outcomes. They have shown neuroprotective effects in cell culture and animal studies of PD, but clinical trial results have been mixed and have failed to convincingly demonstrate disease modifying effects in people with PD. In a retrospective analysis by Hauser et al. in the Journal of Parkinson’s Disease, researchers looked at the results from a large study and found that participants who received an MAO-B inhibitor for a longer period of time experienced slower clinical decline.

Parkinson’s disease (PD) is the second most common neurodegenerative disorder that causes a range of motor and non-motor symptoms. During the course of the disease, dopamine (DA)-producing neurons are lost and bundles of proteins known as Lewy bodies (LBs) form in the brain. A study reported in the Journal of Parkinson’s Disease provided molecular evidence that the FDA-approved leukemia drug nilotinib may restore brain dopamine and reduce toxic proteins associated with LB formation in PD and dementia patients.

Accurate diagnosis of Parkinson’s disease, and the related disease “dementia with Lewy bodies,” can be difficult in the early stages of both conditions. While brain biopsies can be more accurate, the risk of complications has been considered too high. New research published in the Journal of Parkinson’s Disease indicates that a biopsy of the submandibular gland can help identify the same pathology that is seen in the brain, providing some of the increased accuracy of brain biopsy, but not the increased risk.