Related Experiment Video
Updated: Jun 6, 2026
16:57
MALDI Imaging Mass Spectrometry of Neuropeptides in Parkinson's Disease
Published on: February 14, 2012
Tracking Genetic Parkinson's Disease with Molecular Imaging: A Systematic Review
Chiara Meneghini1, Luca Gallo1, Arianna Sala2,3,4
1Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Movement Disorders Clinical Practice
|June 5, 2026
Summary
Molecular neuroimaging reveals brain changes in genetic Parkinson's disease (PD) even before symptoms appear. These findings aid in distinguishing genetic PD and predicting disease progression.
Area of Science:
- Neuroscience
- Genetics
- Medical Imaging
Background:
- Parkinson's disease (PD) is a complex neurodegenerative disorder with both genetic and environmental influences.
- Approximately 15-20% of PD cases are attributed to specific genetic mutations, offering crucial insights into disease mechanisms.
Purpose of the Study:
- To review molecular neuroimaging findings in genetically linked PD.
- To identify markers differentiating genetic PD from sporadic forms and predict early disease conversion, focusing on pre-symptomatic stages.
Main Methods:
- Systematic literature search of PubMed and Scopus databases.
- Inclusion of molecular imaging studies on carriers of key PD-related mutations (SNCA, PRKN, PINK1, PARK7, LRRK2, GBA1) in symptomatic and asymptomatic individuals.
Main Results:
- Analysis of 96 studies detailing mutation-specific alterations in dopaminergic and extra-dopaminergic systems (serotonin, acetylcholine).
- Summary of metabolic and cerebral blood flow changes, alongside emerging data on beta-amyloid, tau pathology, and neuroinflammation.
Conclusions:
- Molecular neuroimaging (PET, SPECT) offers in vivo tracking of PD pathophysiology.
- Nuclear imaging provides valuable biomarkers for stratifying genetic PD patients, predicting cognitive decline, and guiding personalized treatments.
Related Concept Videos
01:24Parkinson Disease ll: Pathophysiology
Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...
01:24Parkinson Disease l: Introduction
Parkinson’s disease is a chronic, progressive neurodegenerative disorder that primarily affects movement. It is characterized by motor symptoms such as resting tremors, muscle rigidity, bradykinesia (slowness of movement), and postural instability. Patients may notice hand tremors at rest, stiffness during movement, or a shuffling gait. In addition to motor features, non-motor symptoms include sleep disturbances, mood and behavioral changes, constipation, and cognitive impairment, all of which...
01:15Parkinson's Disease: Overview
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is to...
01:24Parkinson's Disease: Treatment
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of its...
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of its...
01:37Neural Regulation
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.