Abstract
OBJECTIVE: To conduct a replication study to investigate whether the -945 CTGF genetic variant is associated with systemic sclerosis (SSc) susceptibility or specific SSc phenotype.
METHODS: The study population comprised 1180 patients with SSc and 1784 healthy controls from seven independent case-control sets of European ancestry (Spanish, French, Dutch, German, British, Swedish and North American). The -945 CTGF genetic variant was genotyped using a Taqman 5' allelic discrimination assay.
RESULTS: An independent association study showed in all the case-control cohorts no association of the CTGF -945 polymorphism with SSc susceptibility. These findings were confirmed by a meta-analysis giving a pooled OR = 1.12 (95% CI 0.99 to 1.25), p = 0.06. Investigation of the possible contribution of the -945 CTGF genetic variant to SSc phenotype showed that stratification according to SSc subtypes (limited or diffuse), selective autoantibodies (anti-topoisomerase I or anticentromere) or pulmonary involvement reached no statistically significant skewing.
CONCLUSION: The results do not confirm previous findings and suggest that the CTGF -945 promoter polymorphism does not play a major role in SSc susceptibility or clinical phenotype.
| Original language | English |
|---|---|
| Pages (from-to) | 1618-20 |
| Number of pages | 3 |
| Journal | Annals of the Rheumatic Diseases |
| Volume | 68 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2009 |
| Externally published | Yes |
Keywords
- Case-Control Studies
- Connective Tissue Growth Factor
- Female
- Gene Frequency
- Genetic Predisposition to Disease
- Genotype
- Humans
- Male
- Phenotype
- Polymorphism, Single Nucleotide
- Promoter Regions, Genetic
- Scleroderma, Systemic
- Journal Article
- Multicenter Study
- Research Support, Non-U.S. Gov't
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