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Related Concept Videos

Neural Regulation01:37

Neural 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.
Parkinson's Disease: Overview01:15

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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...
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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.
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Parkinson 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...
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Related Experiment Video

Updated: Jun 15, 2026

Cell Based Assays of SINEUP Non-coding RNAs That Can Specifically Enhance mRNA Translation
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The Exon-Based Transcriptomic Analysis of Parkinson's Disease.

Sulev Kõks1,2

  • 1Personalised Medicine Centre, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia.

Biomolecules
|March 28, 2025
PubMed
Summary

Researchers identified specific exon expression changes in Parkinson's disease (PD) patients three years post-diagnosis. These RNA biomarkers, linked to immune response and vision, could aid in monitoring PD progression.

Keywords:
PPMIParkinson’s diseaseRNA-seqblood transcriptomeexonstranscriptomewhole transcriptome analysis

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Area of Science:

  • Neuroscience
  • Genomics
  • Biomarker Discovery

Background:

  • Parkinson's disease (PD) presents complex pathophysiology and diagnostic challenges.
  • Early-stage PD shows minimal differences in exon expression between patients and controls.
  • Identifying reliable biomarkers is crucial for understanding and managing PD.

Purpose of the Study:

  • To investigate changes in exon expression in Parkinson's disease patients over time.
  • To identify potential RNA-based biomarkers for PD diagnosis and progression monitoring.
  • To correlate gene expression changes with known PD pathophysiology.

Main Methods:

  • Longitudinal whole transcriptome analysis of blood samples from the Parkinson's Progression Markers Initiative (PPMI) cohort.
  • Focus on differential exon expression analysis between PD patients and healthy controls.
  • Comparison of exon expression changes over a three-year period.

Main Results:

  • No significant exon expression differences were observed at the time of PD diagnosis.
  • Twenty-seven exons were differentially expressed in PD patients three years post-diagnosis compared to controls.
  • Thirteen exons showed differential expression during the three-year progression of PD, with minimal changes in controls attributed to aging.
  • Differentially expressed exons were associated with innate immune response and lysosomal activity.
  • A decline in OPN1MW3 gene expression, related to color vision, was observed in PD patients.

Conclusions:

  • Exon expression patterns evolve over time in Parkinson's disease, offering potential biomarkers.
  • Immune response and lysosomal activity pathways are implicated in PD pathophysiology.
  • The observed decline in OPN1MW3 suggests color vision changes may serve as a practical biomarker for monitoring PD progression.