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A promoter polymorphism of tumor necrosis factor α associated with systemic lupus erythematosus in African-Americans

✍ Scribed by Kathleen E. Sullivan; Candra Wooten; Barbara J. Schmeckpeper; Daniel Goldman; Michelle A. Petri


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
556 KB
Volume
40
Category
Article
ISSN
0004-3591

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✦ Synopsis


The polymorphic tumor necrosis factor a (TNFa) gene encodes a cytokine involved in inflammation, angiogenesis, and apoptosis. One polymorphic variant is associated with increased production of TNFa. This study examined the frequency of this polymorphic variant in African-American patients with systemic lupus erythematosus (SLE) compared with controls.

Methods. We determined the gene frequency of the polymorphic variant of TNFa in an African-American SLE patient population and in a geographically matched African-American control population.

Results. The gene frequency of the TNFa -308A polymorphism was higher in the African-American SLE population than in the control population. This relationship was independent of major histocompatibility complex DR alleles.

Conclusion.

The TNFa -308A polymorphism is associated with an increased risk of SLE in African-Americans.

Tumor necrosis factor a (TNFa) is a proinflammatory cytokine that regulates the acute-phase response, vascular adhesion, bone marrow progenitor differentiation, and apoptosis (1,2). It has been implicated


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