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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 Disease ll: Pathophysiology01:24

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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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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...
Alzheimer Disease l: Introduction01:29

Alzheimer Disease l: Introduction

Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
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Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
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: Jun 19, 2026

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
05:52

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis

Published on: November 21, 2013

Risk factors for progressive supranuclear palsy: a case-control study in France.

J-S Vidal1, M Vidailhet, P Derkinderen

  • 1INSERM Unit 708, Hôpital de La Salpêtrière, 75651 Paris Cedex 13, France. vidal@chups.jussieu.fr

Journal of Neurology, Neurosurgery, and Psychiatry
|October 30, 2009
PubMed
Summary
This summary is machine-generated.

This study investigated risk factors for progressive supranuclear palsy (PSP). Researchers found lower education attainment was associated with PSP, but no strong environmental risk factors were identified.

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12:55

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Published on: June 1, 2014

Area of Science:

  • Neurology
  • Epidemiology

Background:

  • Progressive supranuclear palsy (PSP) is a rare, severe Parkinsonian syndrome.
  • Known risk factors for PSP are limited, necessitating further research.

Purpose of the Study:

  • To identify potential risk factors for progressive supranuclear palsy (PSP).
  • This case-control study focused on French patients to explore environmental and demographic associations.

Main Methods:

  • A case-control study involving 79 PSP patients and 79 matched controls was conducted.
  • Data collected via questionnaire included demographics, occupation, diet, lifestyle, and environmental exposures.
  • Conditional logistic regression was used to analyze matched data and estimate odds ratios (OR).

Main Results:

  • Lower educational attainment was significantly associated with PSP (OR = 2.6, p = 0.01).
  • No significant associations were found for occupation, pesticide exposure, gardening, alcohol, smoking, or anti-inflammatory drug use.
  • Dietary habits showed minor differences, with cases consuming meat/poultry more frequently and controls eating more fruits.

Conclusions:

  • This study did not identify strong environmental risk factors for progressive supranuclear palsy (PSP).
  • Lower education emerged as a potential, though not definitive, risk factor.