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http://purl.uniprot.org/citations/16344721http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
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Objective

Nonsteroidal anti-inflammatory drugs (NSAIDs) are associated with a decreased risk of colorectal tumors. Single nucleotide polymorphisms (SNPs) in target genes of NSAID action, and their haplotypes, might modulate this protective effect.

Methods

A case-control study including 724 cases and 682 controls was used to evaluate the effect of NSAIDs on colorectal adenoma risk in The Netherlands, a country in which NSAID use is relatively low. Cases and controls were classified according to presence or absence of endoscopy-proven, pathology-confirmed colorectal adenomas, ever in their lives. Thirteen SNPs in four genes (PPARdelta, PPARgamma, PTGS1 and PTGS2) were genotyped in 787 subjects (384 cases and 403 controls).

Results

Compared to non-regular users (< 12 times/year), regular users of NSAIDs (> or = 12 times/year) had a lower risk of colorectal adenomas (odds ratio (OR): 0.75, 95% confidence interval (CI): 0.56-0.99). The results were similar for aspirin only. We found an interaction between SNP c.-789C>T in PPARdelta and NSAID use (P=0.03). The protective effect of NSAIDs was strengthened for regular users with the PPARdelta CT or TT genotypes (OR: 0.35, 95%CI: 0.11-1.13), whereas a positive association was observed for non-regular users with these genotypes (OR: 2.24, 95%CI: 1.06-4.73) as compared to non-regular users with the CC genotype. Also, a statistically significant interaction between a major haplotype containing the minor allele of this SNP and NSAID use was observed.

Conclusions

This study confirms the protective effect of NSAIDs and suggests a modulating effect of a SNP in the promoter of PPARdelta."xsd:string
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http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/author"Fodde R."xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/author"van Kranen H.J."xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/author"de Jong D.J."xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/author"Kampman E."xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/author"Kram N.R."xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/author"Siezen C.L."xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/author"Tijhuis M.J."xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/author"van Soest E.M."xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/date"2006"xsd:gYear
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/name"Pharmacogenet Genomics"xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/pages"43-50"xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/title"Protective effect of nonsteroidal anti-inflammatory drugs on colorectal adenomas is modified by a polymorphism in peroxisome proliferator-activated receptor delta."xsd:string
http://purl.uniprot.org/citations/16344721http://purl.uniprot.org/core/volume"16"xsd:string
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