Prevalence of mutations of the NOD2/CARD15 gene and relation to phenotype in Spanish patients with Crohn disease
| Autor: | R. Lana, J. García-Paredes, Juan Luis Mendoza, D. M. Cruz-Santamaria, Laura Fernandez, E.G. de la Concha, Laura Murillo, Amado Salvador Peña, Manuel Díaz-Rubio, E. Urcelay |
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| Rok vydání: | 2004 |
| Předmět: |
Adult
Genetic Markers Male Adolescent Genotype Nod2 Signaling Adaptor Protein Biology medicine.disease_cause Genetic determinism Crohn Disease NOD2 medicine Humans Genetic Predisposition to Disease Child Gene Aged Aged 80 and over Mutation Polymorphism Genetic Influence factor Crohn disease Gastroenterology Intracellular Signaling Peptides and Proteins Middle Aged Phenotype digestive system diseases Spain Immunology Female Carrier Proteins |
| Zdroj: | Scandinavian journal of gastroenterology. 38(12) |
| ISSN: | 0036-5521 |
| Popis: | We assessed the prevalence of R702W, G908R, and L1007fs coding mutations in the NOD2/CARD15 gene and the genotype-phenotype relation in Spanish patients with Crohn disease.A cohort of 204 unrelated patients with Crohn disease and 140 healthy controls were studied. The phenotype was established before commencement of genotyping. Genotyping of the R702W, G908R, and L1007fs gene polymorphisms of NOD2/CARD15 was performed by two independent laboratories using different techniques. In the case of discordant results, specific sequencing of DNA strands was performed.At least one mutation was present in 32.8% of patients compared to 10.7% in controls (OR = 4.08, 95% CI 2.21 to 7.50). In patients with Crohn disease, the frequency of R702W, G908R, and L1007fs carriers was 13.7%, 8.3%, and 14.2%, respectively. Compound heterozygotes and homozygotes occurred in 3.4% and 2.9% of patients and in none of the controls. The correlation of genotype-Vienna classification showed a significant association with ileal disease (RR = 1.61, 95% CI 1.21-2.15, P = 0.001) and an inverse association with colonic localization (RR = 0.29, 95% CI 0.11-0.80, P = 0.007). There was a significant association between G908R carriership and previous appendectomy, surgical interventions, and stricturing behavior. A gene-dosage effect on phenotypic characteristics was not observed.In a Spanish population from Madrid, mutations of the NOD2/CARD15 gene were a marker of susceptibility to Crohn disease and were associated with ileal disease. Carriers of the G908R mutation showed a stricturing disease behavior, history of appendectomy, and surgical interventions over the course of the disease. |
| Databáze: | OpenAIRE |
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