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Related Concept Videos

Multiple Sclerosis l: Introduction01:19

Multiple Sclerosis l: Introduction

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...
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...
Degenerative Disc Disease ll: Pathophysiology01:23

Degenerative Disc Disease ll: Pathophysiology

The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...
Cross-bridge Cycle01:26

Cross-bridge Cycle

As muscle contracts, the overlap between the thin and thick filaments increases, decreasing the length of the sarcomere—the contractile unit of the muscle—using energy in the form of ATP. At the molecular level, this is a cyclic, multistep process that involves binding and hydrolysis of ATP, and movement of actin by myosin.
Degenerative Disc Disease I: Introduction01:27

Degenerative Disc Disease I: Introduction

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Myasthenia Gravis ll: Pathophysiology

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Related Experiment Video

Updated: Jun 30, 2026

Rat Model of Widespread Cerebral Cortical Demyelination Induced by an Intracerebral Injection of Pro-Inflammatory Cytokines
09:46

Rat Model of Widespread Cerebral Cortical Demyelination Induced by an Intracerebral Injection of Pro-Inflammatory Cytokines

Published on: September 21, 2021

[Multiple sclerosis: a degenerative disease?].

Christian Confavreux1, Sandra Vukusic

  • 1Service de Neurologie A et Centre de Coordination EDMUS sur la sclérose en plaques, INSERM Unité 842, Hospices Civils de Lyon, Université Lyon 1, Hôpital Neurologique Pierre Wertheimer, 59 boulevard Pinel, 69677 Lyon-Bron. christian.confavreux@chu-lyon.fr

Bulletin De L'Academie Nationale De Medecine
|September 30, 2008
PubMed
Summary
This summary is machine-generated.

Multiple sclerosis (MS) involves more than just acute relapses; chronic neurodegeneration and diffuse inflammation significantly contribute to disability. New therapies must target this underlying, slow-burning inflammation within the central nervous system.

More Related Videos

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
09:41

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis

Published on: July 19, 2019

Related Experiment Videos

Last Updated: Jun 30, 2026

Rat Model of Widespread Cerebral Cortical Demyelination Induced by an Intracerebral Injection of Pro-Inflammatory Cytokines
09:46

Rat Model of Widespread Cerebral Cortical Demyelination Induced by an Intracerebral Injection of Pro-Inflammatory Cytokines

Published on: September 21, 2021

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
09:41

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis

Published on: July 19, 2019

Area of Science:

  • Neuroimmunology
  • Autoimmune Diseases
  • Neurodegeneration

Context:

  • Multiple sclerosis (MS) is characterized by autoimmune attacks on central nervous system myelin.
  • Its clinical course involves relapses (acute inflammation) and progression (chronic neurodegeneration).
  • Current disease-modifying drugs primarily target acute relapses.

Purpose:

  • To re-evaluate the pathogenesis of multiple sclerosis beyond the traditional autoimmune relapse model.
  • To investigate the roles of chronic neurodegeneration and diffuse inflammation in MS progression.
  • To explore new therapeutic strategies for MS.

Summary:

  • Contrary to the traditional view, relapses and focal lesions are not the primary drivers of irreversible disability or diffuse neurodegeneration in MS.
  • Chronic, diffuse neurodegeneration and inflammation, independent of relapses, play a crucial role in MS progression.
  • Recent findings reveal disseminated inflammatory cells, suggesting a non-autoimmune inflammatory component driving neurodegeneration.

Impact:

  • Current MS therapies focusing solely on acute inflammation may be insufficient.
  • Future therapeutic strategies must address the persistent, diffuse neuroinflammation within the central nervous system.
  • This paradigm shift necessitates a broader approach to managing MS and preventing long-term disability.