MDS Podcast

In this episode, host Dr. Michele Matarazzo interviews Dr. Nicolaas Bohnen about his team’s recent study using FEOBV PET to investigate cholinergic deficits in Parkinson’s disease patients with dopa-unresponsive freezing of gait (FOG). The results reveal a distinct pattern of cortical cholinergic denervation that may underlie this challenging and poorly treatable symptom. Dr. Bohnen discusses the implications for subtyping FOG, the role of cholinergic systems in higher-order motor control, and the potential for cholinergic-targeted therapies. Read the article.

Dr. Mitra Afshari interviews Drs. Patricia Krause and Andrea Kühn on the results of a 10-year prospective follow-up study of a multicenter trial of GPI-DBS in isolated generalized and segmental dystonia. Together they discuss motor, non-motor, and safety outcomes, as well as the strong and stable long-term improvements in dystonia from pallidal DBS. Further, they provide their expert insights on the common themes with respect to treatment failure and the critical need for a personalized approach.

Could gene therapy with neurotrophic factors help restore dopaminergic terminals in Parkinson’s disease? Dr. Michele Matarazzo speaks with Dr. Amber Van Laar about her team’s Phase 1b trial of AAV2–GDNF gene therapy delivered directly to the putamen. They discuss the preclinical evidence for GDNF, how advanced delivery techniques and higher putamen coverage may overcome past challenges, and the encouraging early results in moderate Parkinson’s. The conversation also explores lessons from previous trials, safety outcomes, and the path forward. Read the article.

Nicole Duff and Dr. Amanda Currie discuss the potential role of the social worker in deep brain stimulation (DBS) and the work of Dr. Currie’s team in creating a simple pneumonic that could be used to determine whether a social worker's involvement would be beneficial to DBS patients. They also discuss the clinical implications of this study as well as possible future directions to further outline the role of the social worker in DBS. Read the article.

Mutations in LRRK2 are a common cause of familial and sporadic Parkinson’s. Though clinical features resemble typical PD, about half of cases lack Lewy pathology. Doctors Hiroaki Sekiya and Nanna Møller Jensen discuss their recent studies on the neuropathology of LRRK2-PD patients. They dive into their methods and how proximity ligation assays may compare to alpha-synuclein seeding assays in identification of alpha-synuclein oligomers. Together they explain their surprising results on how alpha-synuclein oligomers may be a key early feature in LRRK2-PD. Read the first article. Read the second article.

Dr. Hugo Morales interviews Drs. Malco Rossi and Lucas Alessandro about their work on an AI-powered virtual assistant designed to aid in the diagnosis of chronic ataxias. They discuss how the assistant performed when put to the test, evaluating its diagnostic accuracy head-to-head against movement disorder experts. Journal CME is available until May 21, 2026 Read the article.

Prof. Marina de Koning-Tijssen interviews Prof. Sabine Fuchs on the potential of prime editing as a future therapy for cortical myoclonus. This exciting new development holds promise for the treatment of rare genetic disorders such as GOSR2. In the interview, Prof. Fuchs provides valuable insights into the science and potential applications of this groundbreaking technique.

In this episode, Prof. Tiago Outeiro interviews Prof. William Langston on the intriguing history of drug addicts manifesting parkinsonism in the 1980s, and how MPTP became a tool compound for modeling certain aspects of Parkinson's disease.

Professor Kathryn Peall, a leading expert in myoclonus dystonia from Cardiff University, discusses the complexities of this condition, touching on both motor and non-motor symptoms. She sheds light on the genetic factors, particularly the role of the SGCE gene, and how it affects clinical presentation. The conversation also highlights the effectiveness of deep brain stimulation (DBS) as a treatment, underlining its potential when applied early, especially in children. Peall emphasizes the need for a more nuanced understanding of the interplay between psychiatric issues and motor symptoms.

In this episode, we explore the role of genetics and genetic testing in the decision-making and outcome of deep brain stimulation in Parkinson's disease with two experts in the field: Dr. David Arkadir and Dr. Saar Anis. This interview is also available in the text format within the MDS Scientific Issues: Read the issue