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Related Concept Videos

Multiple Sclerosis l: Introduction01:19

Multiple Sclerosis l: Introduction

Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
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Related Experiment Video

Updated: Jun 5, 2026

Modeling Multiple Sclerosis in the Two Sexes: MOG35-55-Induced Experimental Autoimmune Encephalomyelitis
05:44

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Published on: October 13, 2023

Familial multiple sclerosis: does consanguinity have a role?

M Al Jumah1, S Kojan, A Al Khathaami

  • 1King Abdullah International Medical Research Center, KSAU-HS, Riyadh, Saudi Arabia. jumahm@ngha.med.sa

Multiple Sclerosis (Houndmills, Basingstoke, England)
|December 24, 2010
PubMed
Summary

Parental consanguinity (PC) is linked to a higher risk of familial multiple sclerosis (FMS). This study found FMS is prevalent in Saudi Arabia, with PC being more common in FMS patients.

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Area of Science:

  • Neurology
  • Genetics
  • Epidemiology

Background:

  • Parental consanguinity (PC) is a known factor in genetic disorders.
  • Its role in familial multiple sclerosis (FMS) in consanguineous populations requires further investigation.
  • Understanding PC prevalence in FMS is crucial for genetic counseling and risk assessment.

Purpose of the Study:

  • To estimate the prevalence of FMS in Saudi Arabia.
  • To determine the rate of PC among FMS patients compared to non-FMS patients.
  • To explore the association between PC and FMS in a Saudi cohort.

Main Methods:

  • A case-control study design was employed.
  • Saudi Multiple Sclerosis (MS) patients were identified from a national registry.
  • Patient histories of PC were analyzed, distinguishing between first-degree and general PC.

Main Results:

  • A total of 141 MS patients were identified.
  • 21% of patients reported at least one affected relative (FMS).
  • 37.6% of patients reported PC, with 16% having first-degree PC. FMS patients showed a higher likelihood of reporting PC.

Conclusions:

  • Familial multiple sclerosis (FMS) is prevalent in the Saudi MS patient population.
  • A history of parental consanguinity (PC) is associated with an increased likelihood of FMS.
  • These findings suggest a potential genetic role for consanguinity in the etiology of FMS within this population.