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Original Article

Levels of CD5+ B Cells are Not Increased in Probands or Relatives in a Family Study of Primary Sjögren's Syndrome

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Pages 207-214 | Received 27 Sep 1991, Accepted 14 Feb 1991, Published online: 07 Jul 2009
 

Abstract

Levels of CD5+ B lymphocytes were assayed in a large family study of Primary Sögren's syndrome. There was no significant difference in CD5 expression by index cases or their relatives when compared to controls. No association between CDS expression, serological abnormalities or HLA haplotype was found and, furthermore, no evidence of linkage with HLA was observed. There was, however, variation in the expression of CD5+ B cells between the families. Levels in spouses were lower and reached statistical significance. The role for genetic and environmental factors influencing CD5 expression is discussed. Any genetic influence does not appear to involve the HLA region or genes in linkage disequilibrium.

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