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J Neurol. 2006 May;253(5):636-9. Epub 2006 Mar 6.

Multiple sclerosis and autoimmune diseases: epidemiology and HLA-DR association in North-east Italy.

Author information

1
Multiple Sclerosis Centre of the Veneto, Region, First Neurology Clinic-Dept. of Neurosciences, University of Padova, Via Giustiniani 5, 35128, Padova, Italy.

Abstract

An autoimmune background is thought to characterize the families of multiple sclerosis (MS) patients, but disease patterns and HLA-DR association seem to vary considerably among different ethnic groups. We investigated the prevalence of autoimmune diseases in 245 MS patients and 245 age- and sex-matched normal controls (NC), originating from and living in North-east Italy, and their first degree relatives, using a case-control method. Further, HLA-DRB1 expression was analysed in MS and NC. The following significant findings were observed: 1) a significant excess of autoimmunity in first-degree relatives of MS patients (p = 0.000), 2) an association of MS with Type 1 diabetes mellitus (T1DM) (p = 0.02), 3) an increase in DR4 expression (namely DRB1*0401) in MS patients from families with multiple autoimmune pathology compared with reference MS patients (p=0.02) and NC (p=0.01). We conclude that the risk of autoimmune disease is higher in first-degree relatives of MS patients and that disease association and HLA-DR expression in North-east Italy differs from other geographic regions of Europe.

PMID:
16502215
DOI:
10.1007/s00415-006-0084-4
[Indexed for MEDLINE]

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