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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 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...
Myasthenia Gravis ll: Pathophysiology01:22

Myasthenia Gravis ll: Pathophysiology

The disease process of myasthenia gravis begins at the neuromuscular junction, where antibodies attack key proteins needed for muscle activation. This immune reaction weakens signal transmission, leading to the characteristic muscle fatigue and weakness that define the condition.Immune-Mediated DamageIn most individuals, antibodies target acetylcholine receptors (AChRs) on the postsynaptic membrane of muscle cells. By blocking acetylcholine binding, these antibodies prevent the nerve signal...
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...
Secondary Spinal Cord Injury llI: Pathophysiology01:25

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

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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...

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Updated: Jun 16, 2026

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
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Published on: July 19, 2019

[Pathophysiology of multiple sclerosis].

David Brassat1

  • 1Pôle des neurosciences, INSERM U56, hôpital Purpan, TSA 40031, 1059 Toulouse cedex 9, France. brassat.d@yahoo.fr

Presse Medicale (Paris, France : 1983)
|February 23, 2010
PubMed
Summary
This summary is machine-generated.

Multiple sclerosis (MS) is an immune-mediated neurological disease affecting young adults. Understanding its immunological basis helps explain current treatments and improve patient outcomes by preventing disease progression.

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Area of Science:

  • Neurology
  • Immunology
  • Genetics

Context:

  • Multiple sclerosis (MS) is a debilitating neurological condition primarily impacting young adults.
  • Evidence indicates MS involves an immunological process influenced by genetic susceptibility.
  • Disease presentation and progression exhibit significant inter-individual and intra-individual variability.

Purpose:

  • To review current knowledge on the pathogenesis of multiple sclerosis.
  • To address common patient questions regarding MS.
  • To elucidate the immunological underpinnings of MS and treatment mechanisms.

Summary:

  • This review details the pathogenesis of MS, focusing on its immunological basis and genetic factors.
  • It explores the variability of the disease process in individuals over time.
  • Mechanisms of action for approved MS treatments are explained in relation to the immune system.

Impact:

  • Advances in understanding MS pathogenesis have led to improved immunomodulatory treatments.
  • Early intervention by blocking immune attacks offers potential to prevent the frequent secondary progressive phase.
  • Enhanced knowledge facilitates better management and therapeutic strategies for MS patients.