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Infectious exposure, antibiotic use, and multiple sclerosis: A population-based incident case-control study.

I Abdollahpour1, S Nedjat2, M A Mansournia3

  • 1Department of Epidemiology, School of Public Health, Arak University of Medical Sciences, Arak, Iran.

Acta Neurologica Scandinavica
|May 10, 2018
PubMed
Summary
This summary is machine-generated.

Antibiotic use, particularly penicillin and cephalosporins, may decrease the risk of developing multiple sclerosis (MS). However, most viral infections, except infectious mononucleosis, showed no significant association with MS risk.

Keywords:
antibioticslogistic regressionmultiple sclerosispopulation-based incident case-controlrandom digit dialingviral infections

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Area of Science:

  • Neurology
  • Epidemiology
  • Infectious Diseases

Background:

  • Inconclusive evidence exists regarding the role of infections and antibiotic use in multiple sclerosis (MS) etiology.
  • Understanding potential environmental triggers for MS is crucial for prevention and treatment strategies.

Purpose of the Study:

  • To investigate the association between viral infections, antibiotic use, and the risk of developing multiple sclerosis.
  • To clarify the relationship between specific infections and antibiotic classes with MS development.

Main Methods:

  • A population-based incident case-control study was conducted.
  • Data included 547 incident MS cases and 1057 general population controls from Tehran.
  • Multiple logistic regression models were employed to analyze adjusted associations.

Main Results:

  • Antibiotic use for ≥14 days within 3 years prior to the index date was associated with a significantly decreased odds of MS (OR 0.69).
  • Specific antibiotics like penicillin (OR 0.50) and cephalosporins (OR 0.25) showed a significant reduction in MS risk.
  • A history of infectious mononucleosis (IM) was linked to a more than fivefold increased risk of MS (OR 5.7).
  • No significant association was found between other viral infections and MS risk.

Conclusions:

  • Antibiotic use may be associated with a reduced risk of multiple sclerosis, though reverse causation is a possibility.
  • Viral infections, with the exception of infectious mononucleosis, do not appear to be significantly associated with an increased risk of MS.