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Related Concept Videos

Parkinson Disease ll: Pathophysiology01:24

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...
Parkinson's Disease: Overview01:15

Parkinson'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...
Parkinson Disease l: Introduction01:24

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...
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.
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...
Alzheimer Disease ll: Pathophysiology01:23

Alzheimer Disease ll: Pathophysiology

Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...

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Updated: May 12, 2026

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

Published on: July 29, 2022

Neuronal vulnerability, pathogenesis, and Parkinson's disease.

David Sulzer1, D James Surmeier

  • 1Department of Psychiatry, Columbia University, New York, New York, USA.

Movement Disorders : Official Journal of the Movement Disorder Society
|April 17, 2013
PubMed
Summary
This summary is machine-generated.

Parkinson's disease (PD) pathogenesis remains unclear, but specific neuronal traits like autonomous activity and broad action potentials may increase vulnerability. Physiological factors offer potential therapeutic targets for this neurodegenerative disorder.

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Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease
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Last Updated: May 12, 2026

Analyzing the Parkinson's Disease Mouse Model Induced by Adeno-associated Viral Vectors Encoding Human α-Synuclein
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Published on: July 29, 2022

Studying Pre-formed Fibril Induced α-Synuclein Accumulation in Primary Embryonic Mouse Midbrain Dopamine Neurons
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Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease
08:09

Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease

Published on: January 7, 2014

Area of Science:

  • Neuroscience
  • Neurology
  • Pathology

Background:

  • Parkinson's disease (PD) pathogenesis is not fully understood despite advances.
  • Neuronal pathology in PD is restricted, suggesting specific vulnerabilities.
  • Lewy pathology (LP), phenotypic dysregulation, and degeneration affect various neuronal populations in PD patients.

Purpose of the Study:

  • To explore potential clues for PD pathogenesis based on observed neuronal pathology patterns.
  • To identify risk factors contributing to neuronal vulnerability in Parkinson's disease.
  • To evaluate potential therapeutic targets for PD based on identified risk factors.

Main Methods:

  • Literature review of neuronal pathology in Parkinson's disease.
  • Analysis of phenotypic traits associated with neuronal vulnerability.
  • Assessment of physiological factors as potential therapeutic targets.

Main Results:

  • Identified specific neuronal populations affected in PD beyond dopaminergic neurons.
  • Highlighted several risk factors for neuronal vulnerability, including autonomous activity, broad action potentials, and catecholamine use.
  • Determined that physiological traits represent current reachable therapeutic targets.

Conclusions:

  • Specific neuronal phenotypic traits contribute to Parkinson's disease vulnerability.
  • Physiological characteristics of neurons present promising targets for PD therapeutic interventions.