Related Experiment Video
Updated: Sep 2, 2025

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
Published on: July 19, 2019
Epidemiology and Pathophysiology of Multiple Sclerosis
Purpose Of Review:
This article provides an overview of genetic, environmental, and lifestyle risk factors affecting the disease course of multiple sclerosis (MS) and reviews the pathophysiologic characteristics of both relapsing and progressive MS.
Recent Findings:
The prevalence of MS has increased in recent decades, and costs of care for patients with MS have risen dramatically. Black, Asian, and Hispanic individuals may be at risk for more severe MS-related disability. Multiple genetic MS risk factors have been identified. Factors such as low vitamin D levels and a history of Epstein-Barr virus, smoking, and obesity, especially during childhood, also influence MS risk. Traditionally thought to be a T-cell-mediated disease, recent research has highlighted the additional roles of B cells and microglia in both relapsing and progressive MS.
Summary:
Complex interactions between genetic, environmental, and lifestyle factors affect the risk for MS as well as the disease course. People of color have historically been underrepresented in both MS clinical trials and literature, but current research is attempting to better clarify unique considerations in these groups. MS pathology consists of the focal inflammatory lesions that have been well characterized in relapsing MS, as well as a more widespread neurodegenerative component that is posited to drive progressive disease. Recent advances in characterization of both the inflammatory and neurodegenerative aspects of MS pathophysiology have yielded potential targets for future therapeutic options.
Insights
Multiple sclerosis (MS) risk and progression are influenced by genetic, environmental, and lifestyle factors. Emerging research highlights the roles of B cells and microglia in MS pathophysiology, alongside traditional T-cell involvement.
Area of Science:
- Neuroimmunology
- Genetics
- Epidemiology
Background:
- Multiple sclerosis (MS) prevalence and care costs have risen, with potential for increased severity in Black, Asian, and Hispanic populations.
- Identified MS risk factors include genetics, low vitamin D, Epstein-Barr virus, smoking, and childhood obesity.
- MS pathophysiology involves T-cells, B-cells, and microglia, impacting both relapsing and progressive forms.
Purpose of the Study:
- To provide an overview of genetic, environmental, and lifestyle risk factors for multiple sclerosis (MS).
- To review the pathophysiologic characteristics of relapsing and progressive MS.
- To highlight recent advances in understanding MS disease course and pathology.
Main Methods:
- Literature review of genetic, environmental, and lifestyle factors in MS.
- Analysis of pathophysiologic mechanisms in relapsing and progressive MS.
- Examination of emerging research on immune cell roles (B cells, microglia) and neurodegeneration in MS.
Main Results:
- Complex interactions of genetic, environmental, and lifestyle factors influence MS risk and disease course.
- People of color may face unique considerations in MS, with historical underrepresentation in research.
- MS pathology involves inflammatory lesions and a progressive neurodegenerative component.
Conclusions:
- Understanding the interplay of various factors is crucial for managing MS.
- Further research is needed to clarify MS in diverse populations and develop targeted therapies.
- Advances in characterizing MS inflammation and neurodegeneration offer potential therapeutic targets.
More Related Videos
09:46Rat Model of Widespread Cerebral Cortical Demyelination Induced by an Intracerebral Injection of Pro-Inflammatory Cytokines
Published on: September 21, 2021
05:44Author Spotlight: Creating a Versatile Experimental Autoimmune Encephalomyelitis Model Relevant for Both Male and Female Mice
Published on: October 13, 2023
Related Concept Videos
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
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...
Parkinson's Disease: Overview
Cystic Fibrosis: Pathogenesis
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
COPD: Pathogenesis and Clinical Features
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Inflammation
Asthma-II: Pathophysiology and Classification
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include: