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
No coin nor oath required. For personal study only.
✦ 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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