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Related Concept Videos

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...
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 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: Treatment01:24

Parkinson'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...
Alterations in Muscle Tone lll01:11

Alterations in Muscle Tone lll

Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...
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.

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Related Experiment Video

Updated: May 13, 2026

Ole Isacson: Development of New Therapies for Parkinson's Disease
23:53

Ole Isacson: Development of New Therapies for Parkinson's Disease

Published on: April 29, 2007

[James Parkinson (1755-1824) revisited].

Jacques Poirier1

  • 1Professeur honoraire, Université Pierre et Marie Curie - Paris VIII, France.

Geriatrie Et Psychologie Neuropsychiatrie Du Vieillissement
|March 20, 2013
PubMed
Summary
This summary is machine-generated.

James Parkinson was a physician and scientist, renowned for his work on paralysis agitans, now known as Parkinson's disease. His contributions extended to paleontology and social reform, highlighting a multifaceted career beyond his famous namesake disease.

Keywords:
Parkinson diseasehistory of medicinehistory of neurologyneurology

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Applying the RatWalker System for Gait Analysis in a Genetic Rat Model of Parkinson's Disease
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Last Updated: May 13, 2026

Ole Isacson: Development of New Therapies for Parkinson's Disease
23:53

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Published on: April 29, 2007

Applying the RatWalker System for Gait Analysis in a Genetic Rat Model of Parkinson's Disease
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Published on: January 18, 2021

Area of Science:

  • Medical History
  • Paleontology
  • Social Reformism

Background:

  • James Parkinson (1755-1824) was a London-based physician, surgeon, and apothecary.
  • He received training in medicine, natural philosophy, and stenography.
  • Parkinson qualified as a surgeon in 1784.

Observation:

  • Parkinson's medical publications covered paralysis agitans (Parkinson's disease), gout, lightning complications, appendicitis, and hernias.
  • He was a political activist advocating for parliamentary representation, social justice, and the rights of the poor and insane.
  • His scientific interests included paleontology and oryctology, contributing to the founding of the British Geological Society.

Findings:

  • Parkinson authored significant medical texts, most notably on "paralysis agitans."
  • He was a proponent of creationism and catastrophism, aligning with contemporaries like Georges Cuvier.
  • His paleontological work led to several fossils being named in his honor.

Implications:

  • The study highlights James Parkinson's extensive contributions beyond his eponymously named neurological disorder.
  • It underscores his role as a founder of paleontology and a significant figure in early 19th-century British science and society.
  • Parkinson's legacy encompasses medicine, social advocacy, and natural history, revealing a complex and influential historical figure.