Volume 40, Issue 12 pp. 2207-2211
Article
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A promoter polymorphism of tumor necrosis factor α associated with systemic lupus erythematosus in African-Americans

Kathleen E. Sullivan MD, PhD

Corresponding Author

Kathleen E. Sullivan MD, PhD

The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia

Division of Immunologic and Infectious Diseases, The Children's Hospital of Philadelphia, 34th Street and Civic Center Boulevard, Philadelphia, PA 19104Search for more papers by this author
Candra Wooten

Candra Wooten

The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia

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Barbara J. Schmeckpeper PhD

Barbara J. Schmeckpeper PhD

The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia

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Daniel Goldman PhD

Daniel Goldman PhD

The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia

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Michelle A. Petri MD, MPH

Michelle A. Petri MD, MPH

The Johns Hopkins University School of Medicine, Baltimore, Maryland

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First published: 12 December 2005
Citations: 123

Abstract

Objective. The polymorphic tumor necrosis factor α (TNFα) gene encodes a cytokine involved in inflammation, angiogenesis, and apoptosis. One polymorphic variant is associated with increased production of TNFα. 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 TNFα in an African- American SLE patient population and in a geographically matched African-American control population.

Results. The gene frequency of the TNFα -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 TNFα -308A polymorphism is associated with an increased risk of SLE in African- Americans.

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