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Related Concept Videos

Parkinson's Disease: Overview01:15

Parkinson's Disease: Overview

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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...
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Parkinson's Disease: Treatment01:24

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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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The brainstem, located inferior to the brain and superior to the spinal cord, serves as a bridge between the cerebrum and the spinal cord. It plays a vital role in relaying information and controlling critical life functions. It comprises three primary regions: the midbrain, pons, and medulla oblongata.
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Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
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Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
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Related Experiment Video

Updated: Oct 4, 2025

Author Spotlight: Establishing a New Fluorescence-Based Protocol for In Vivo Mitochondrial Morphology Analysis in Parkinson's Disease
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Matrisome changes in Parkinson's disease.

Margaret Downs1, Manveen K Sethi1, Rekha Raghunathan1,2

  • 1Department of Biochemistry, Boston University, Boston, MA, 02118, USA.

Analytical and Bioanalytical Chemistry
|February 3, 2022
PubMed
Summary
This summary is machine-generated.

Changes in the extracellular matrix (ECM), known as the matrisome, are linked to Parkinson's disease (PD). This study found significant alterations in collagen and other matrisome proteins in PD brains.

Keywords:
Extracellular matrixGlycoproteinsMass spectrometryMatrisomeParkinson’s diseasePicrosirius red stainingProteoglycansProteomicsType I collagen

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MALDI Imaging Mass Spectrometry of Neuropeptides in Parkinson's Disease
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Area of Science:

  • Neuroscience
  • Biochemistry
  • Proteomics

Background:

  • The extracellular matrix (ECM), or matrisome, comprises proteins like collagens and glycoproteins.
  • Matrisome alterations are implicated in neurodegenerative diseases, including Parkinson's disease (PD).

Purpose of the Study:

  • To investigate matrisome protein expression changes in the human prefrontal cortex of individuals with Parkinson's disease compared to controls.

Main Methods:

  • Proteomic analysis of previously published human prefrontal cortex data.
  • Histological analysis using picrosirius red staining to examine collagen expression.
  • Network topology-based analysis of differentially expressed matrisome molecules.

Main Results:

  • Significant enrichment of type I collagen expression was observed in PD samples.
  • Histological analysis corroborated proteomic findings for collagen abundance.
  • Glycoproteomic analysis revealed changes in type VI collagen and versican in PD.
  • Network analysis indicated affected angiogenesis, involving decorin and collagen family members, in PD.

Conclusions:

  • This study identified specific matrisome alterations associated with Parkinson's disease.
  • Histological methods can complement proteomic studies for matrisome analysis in PD.
  • Further research with larger cohorts is needed to validate these findings.