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Ankylosing Spondylitis Susceptibility and Severity-Contribution of TNF Gene Promoter Polymorphisms at Positions-238 and-308

Sousa, Elsa (author)
Caetano-Lopes, Joana (author)
Pinto, Patricia (author)
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Pimentel, Fernando (author)
Teles, José (author)
Lund University,Lunds universitet,Beräkningsbiologi och biologisk fysik - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Computational Biology and Biological Physics - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science
Canhao, Helena (author)
Rodrigues, Ana (author)
Resende, Catarina (author)
Mourao, Ana Filipa (author)
Ribeiro, Celia (author)
Pinto, Teresa Laura (author)
Rosa, Carlos Miranda (author)
Pereira da Silva, Jose Alberto (author)
Branco, Jaime (author)
Ventura, Francisco (author)
Queiroz, Mario Viana (author)
Fonseca, Joao Eurico (author)
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 (creator_code:org_t)
2009-09-01
2009
English.
In: Contemporary Challenges in Autoimmunity. - : Wiley. - 0077-8923. ; 1173, s. 581-588
Related links:
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  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • Ankylosing spondylitis (AS) is a chronic inflammatory disease in which genetic factors play a central role. The efficacy of TNF blockers has reoriented research in this field in order to explain the influence of TNF in AS pathogenesis. The objective of this study was to access the influence of single nucleotide polymorphisms (SNPs) at positions -308 and -238 of the promoter region of TNF gene on AS susceptibility and prognosis. SNPS were determined by restriction fragment length polymorphisms in patients and controls. AS patients exhibited a decreased frequency of the A allele at position -238 (10%) when compared with controls (18%), suggesting that this could be a protective factor for disease susceptibility. In addition, the -308 GA/AA genotypes were associated with later disease onset in AS patients. These results suggest that TNF gene promoter polymorphisms at positions -238 and -308 could have a small influence on AS susceptibility and prognosis.

Subject headings

NATURVETENSKAP  -- Biologi -- Biofysik (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Biophysics (hsv//eng)

Keyword

susceptibility
ankylosing spondylitis
TNF promoter polymorphisms
prognosis

Publication and Content Type

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