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Common infectious agents in multiple sclerosis: a case-control study in children

Bernd Krone1, Daniela Pohl, Kevin Rostasy

  • 1Department of Virology, Georg August University Goettingen,Germany. bkrone@gwdg.de

Multiple Sclerosis (Houndmills, Basingstoke, England)
|October 19, 2007
PubMed

Insights

Childhood infections like measles and herpes simplex virus type 2 (HSV-2) are associated with pediatric multiple sclerosis (MS) risk. This study investigated various infections in children with MS, highlighting a complex infectious and immunologic background for the disease.

Area of Science:

  • Neurology
  • Immunology
  • Infectious Diseases

Background:

  • Environmental factors, particularly infections, are implicated in multiple sclerosis (MS) risk.
  • The link between Epstein-Barr virus and childhood MS is established.
  • Limited research exists on other childhood infections' role in pediatric MS.

Purpose of the Study:

  • To investigate the association between various childhood infections and the risk of developing MS in a pediatric cohort.
  • To determine if specific infection antibody patterns correlate with MS development in children.
  • To explore the potential etiological role of common childhood infections in pediatric MS.

Main Methods:

  • Serological antibody responses to a range of infections were analyzed in 152 German children with MS (onset age <16 years) and matched controls.
  • Antibody levels (IgM and IgG) were measured for infections including Chlamydia pneumoniae, influenza A, measles, parainfluenza 2, varicella/zoster viruses, and herpes simplex virus type 2 (HSV-2).
  • Statistical analysis was performed to identify significant differences in antibody prevalence and concentration between MS patients and controls.

Main Results:

  • Significantly higher IgM antibody prevalence was observed for Chlamydia pneumoniae.
  • Elevated IgG antibody concentrations were found for influenza A, measles, parainfluenza 2, varicella/zoster viruses, and notably, herpes simplex virus type 2 (HSV-2).
  • Further investigation suggested that widespread HSV-2 infection was unlikely in the studied pediatric MS cohort.

Conclusions:

  • The study supports a complex interplay of infectious agents and immune responses in the development of pediatric MS.
  • Specific viral and bacterial infections experienced during childhood may contribute to MS pathogenesis.
  • Further research is warranted to elucidate the precise mechanisms linking these infections to MS in children.

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