Crawford et al, Mar 2005, Evaluation of SLC11A1 as an inflammatory bowel disease candidate gene

Reference

Crawford, N. P., Eichenberger, M. R., Colliver, D. W., Lewis, R. K., Cobbs, G. A., Petras, R. E., & Galandiuk, S. Evaluation of SLC11A1 as an inflammatory bowel disease candidate gene. BioMed Central: Medical Genetics, 6 (Professional Student Author(s): Crawford,N.P.; Colliver,D.W.) (Graduate Student Authors(s): Lewis,R.K.) (2005).

Abstract

BACKGROUND: Significant evidence suggests that a promoter polymorphism within the gene SLC11A1 is involved in susceptibility to both autoimmune and infectious disorders. The aim of this study was to evaluate whether SLC11A1 has a role in the susceptibility to inflammatory bowel disease (IBD) by characterizing a promoter polymorphism within the gene and two short tandem repeat (STR) markers in genetic proximity to SLC11A1. METHODS: The studied population consisted of 484 Caucasians with IBD, 144 population controls, and 348 non-IBD-affected first-degree relatives of IBD patients. IBD subjects were re-categorized at the sub-disease phenotypic level to characterize possible SLC11A1 genotype-phenotype correlations. Polymorphic markers were amplified from germline DNA and typed using gel electrophoresis. Genotype-phenotype correlations were defined using case-control, haplotype, and family-based association studies. RESULTS: This study did not provide compelling evidence for SLC11A1 disease association; most significantly, there was no apparent evidence of SLC11A1 promoter allele association in the studied Crohn's disease population. CONCLUSION: Our results therefore refute previous studies that have shown SLC11A1 promoter polymorphisms are involved in susceptibility to this form of IBD

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Crawford et al, Mar 2005, Evaluation of SLC11A1 as an inflammatory bowel disease candidate gene

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