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Multiple sclerosis in First Nations Canadians: A pilot comparison study.

Ruth Ann Marrie1, Nicholas Hall1, A Dessa Sadovnick2

  • 1Department of Internal Medicine, University of Manitoba, Canada.

Multiple Sclerosis Journal - Experimental, Translational and Clinical
|June 14, 2017
PubMed
Summary
This summary is machine-generated.

Multiple sclerosis (MS) characteristics vary by ethnicity. First Nations (FN) individuals with MS showed higher rates of psychiatric conditions and lower odds of a specific HLA allele compared to non-FN individuals.

Keywords:
AboriginalHLAMultiple sclerosisepidemiologygeneticspsychiatric

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Area of Science:

  • Neurology
  • Genetics
  • Epidemiology

Background:

  • Multiple sclerosis (MS) presentation can vary across ethnic groups.
  • Limited research exists on differences in MS characteristics among First Nations (FN) populations.

Purpose of the Study:

  • To compare clinical and genetic factors of MS in individuals of FN and non-FN ethnicity.
  • To investigate potential ethnic disparities in multiple sclerosis.

Main Methods:

  • Cross-sectional observational study comparing FN and non-FN individuals with MS.
  • Included medical record review, interviews, and genetic analysis of HLA alleles.
  • Compared 144 FN participants with 127 non-FN participants from a prior study.

Main Results:

  • FN participants with MS had increased odds of comorbid psychiatric disease (OR 5.38).
  • FN participants were less likely to be HLA-DRB1*1501 positive (OR 0.32).
  • Earlier symptom onset and shorter diagnostic delay were observed in FN participants, though not statistically significant.

Conclusions:

  • Genetic and clinical features of multiple sclerosis differ between FN and non-FN Canadians.
  • Highlights ethnic variations in MS, suggesting potential differences in disease mechanisms or healthcare access.