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Parkinson Disease ll: Pathophysiology

Parkinson 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...

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Related Experiment Video

Updated: Jul 14, 2026

Analyzing the Parkinson's Disease Mouse Model Induced by Adeno-associated Viral Vectors Encoding Human α-Synuclein

Analyzing the Parkinson's Disease Mouse Model Induced by Adeno-associated Viral Vectors Encoding Human α-Synuclein

Published on: July 29, 2022

Merging mouse transcriptome analyses with Parkinson's disease linkage studies.

Daniel Gherbassi¹, Lavinia Bhatt, Sandrine Thuret

¹Department of Neuroanatomy, Interdisciplinary Center for Neuroscience, University of Heidelberg, Im Neuenheimer Feld 307, 69120 Heidelberg, Germany.

DNA Research : an International Journal for Rapid Publication of Reports on Genes and Genomes

|May 25, 2007

Summary

Researchers identified Parkinson's disease (PD) genes by analyzing which genes are active in dopamine neurons. This approach successfully pinpointed known PD genes and uncovered new candidates for further study.

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Assessment of Sensorimotor Function in Mouse Models of Parkinson's Disease

Assessment of Sensorimotor Function in Mouse Models of Parkinson's Disease

Published on: June 17, 2013

Related Experiment Videos

Last Updated: Jul 14, 2026

Analyzing the Parkinson's Disease Mouse Model Induced by Adeno-associated Viral Vectors Encoding Human α-Synuclein

Analyzing the Parkinson's Disease Mouse Model Induced by Adeno-associated Viral Vectors Encoding Human α-Synuclein

Published on: July 29, 2022

Assessment of Sensorimotor Function in Mouse Models of Parkinson's Disease

Assessment of Sensorimotor Function in Mouse Models of Parkinson's Disease

Published on: June 17, 2013

Area of Science:

Neuroscience
Genetics
Molecular Biology

Background:

Parkinson's disease (PD) involves the degeneration of nigral dopaminergic neurons, affecting about 1% of individuals over 65.
Genetic factors are implicated in PD, with many identified susceptibility genes expressed in dopamine-producing neurons.

Purpose of the Study:

To rationally narrow down candidate genes in orphan PD loci by using expression in nigral dopaminergic neurons as a selection criterion.
To identify novel genetic factors and pathways associated with Parkinson's disease.

Main Methods:

Determined human chromosome locations of 1435 murine cDNA fragments from nigral dopaminergic neuron expression analyses.
Integrated this data with human linkage and association studies to identify candidate genes within orphan PD loci.
Utilized transcriptome analysis to reveal gene classes and molecular pathways active in these neurons.

Main Results:

Identified 19 genes within orphan OMIM PD loci based on neuronal expression and linkage data.
Confirmed previously associated PD genes like alpha-synuclein, NR4A2 (Nurr1), and tau.
Revealed several classes of candidate genes for PD mutations through transcriptome analysis.

Conclusions:

Expression profiling in nigral dopaminergic neurons is an effective strategy for identifying PD-associated genes.
The study provides novel candidate genes and insights into molecular pathways involved in Parkinson's disease pathogenesis.
This approach aids in understanding the genetic underpinnings of PD, particularly in cases with unknown mutations.