Epidemiology and Pathophysiology of Multiple Sclerosis

Continuum (Minneapolis, Minn.)
|August 8, 2022
PubMed
Abstract

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.

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