New research findings offer the potential to predict Parkinson’s disease progression and develop tailored treatment strategies for patients.
The Korea Disease Control and Prevention Agency’s National Health Research Institute announced on Friday that these groundbreaking results were obtained using data from a domestic Parkinson’s disease patient cohort, established through the national brain disease research infrastructure project.
While Parkinson’s is commonly associated with motor symptoms like tremors, rigidity, and bradykinesia, patients often grapple with a spectrum of non-motor issues, including cognitive decline, autonomic dysfunction, sleep disorders, and depression. The disease’s variable progression rate underscores the critical need for early detection and personalized management approaches.
In their initial study, researchers analyzed thyroid region signals from ¹²³I-MIBG scans of 233 Parkinson’s patients.
The ¹²³I-MIBG imaging test, a nuclear medicine procedure, employs a radioactive tracer similar to norepinephrine to evaluate sympathetic nervous system function. In Parkinson’s cases, it’s primarily used to assess cardiac sympathetic nervous system impairment.
The National Health Research Institute reported that thyroid region signals correlate with early autonomic nervous system abnormalities, such as orthostatic hypotension, supine hypertension, and nocturnal hypertension. Early detection of these autonomic issues is crucial, as they can lead to dizziness, falls, and syncope.
Researchers believe that analyzing thyroid region signals could enable earlier identification of autonomic nervous system vulnerabilities in Parkinson’s patients.
A separate study tracked 247 Korean Parkinson’s patients over an extended period, analyzing disease progression based on the BDNF (rs6265) genotype.
Results showed that patients with a specific genotype experienced more rapid deterioration of motor symptoms and frontal lobe cognitive decline compared to other groups. After three years, this genotype group exhibited markedly worse motor function decline and more significant cognitive impairment.
These findings could prove invaluable in predicting individual disease trajectories and developing personalized monitoring and treatment strategies.
The research team emphasized that this study reaffirms Parkinson’s as a complex disorder influenced by genetic factors, autonomic dysfunction, and cognitive changes, rather than a simple movement disorder.
Dr. Lim Seung-kwan, director of the disease control agency, stated that the diverse symptom patterns and progression rates in Parkinson’s patients underscore the importance of long-term cohort-based research. It’s committed to intensifying the efforts to develop early diagnosis and tailored management strategies that address the unique characteristics of Korean Parkinson’s patients.