INTRODUCTION: The renin-angiotensin system is strictly related to the kallikrein-kinin system and both are involved in many physiological and disease conditions and possibly in the pathogenesis of inflammatory bowel disease (IBD). Angiotensin-converting enzyme (ACE) is the pivotal enzyme of the renin-angiotensin system and the main catabolic enzyme of the kallikrein-kinin system. The ACE I/D (insertion/deletion) is a polymorphism of the gene encoding for ACE: participants who are homozygous for the D allele exhibit higher ACE levels, which in turn appear to play a deleterious role in several diseases. AIM: To study the prevalence of ACE I/D polymorphism in IBD patients and its possible association with disease features. METHODS: A total of 232 IBD patients, 124 with ulcerative colitis (UC) and 108 with Crohn's disease and 99 healthy controls were genotyped for the ACE I/D polymorphism. RESULTS: DD, ID and II genotypes distribution did not show significant differences between IBD patients and controls: 42.2 vs. 40.4%, 42.7 vs. 47.5% and 15.1 vs. 12.1%, respectively. No significant difference was observed between Crohn's disease and UC patients. Within UC patients, the presence of DD genotype and the carriage of the D allele were significantly associated with the presence of extraintestinal manifestations: odds ratio (OR) 4.08, 95% confidence interval (CI): 1.62-10.28; P<0.003 and OR=3.07, 95% CI: 1.45-6.48; P<0.003, respectively. No significant association was found with other IBD clinical features. CONCLUSIONS: The ACE I/D polymorphism is not associated with IBDs but the D allele appears to increase the risk of developing extraintestinal manifestations in UC patients.

Angiotensin-converting enzyme insertion/deletion gene polymorphism in inflammatory bowel diseases / S. Saibeni, L. Spina, T. Virgilio, A. Folcioni, G. Borsi, R. de Franchis, M. Cugno, M. Vecchi. - In: EUROPEAN JOURNAL OF GASTROENTEROLOGY & HEPATOLOGY. - ISSN 0954-691X. - 19:11(2007 Nov), pp. 976-981. [10.1097/MEG.0b013e3282efa3fc]

Angiotensin-converting enzyme insertion/deletion gene polymorphism in inflammatory bowel diseases

S. Saibeni
Primo
;
L. Spina
Secondo
;
A. Folcioni;R. de Franchis;M. Cugno
Penultimo
;
M. Vecchi
Ultimo
2007

Abstract

INTRODUCTION: The renin-angiotensin system is strictly related to the kallikrein-kinin system and both are involved in many physiological and disease conditions and possibly in the pathogenesis of inflammatory bowel disease (IBD). Angiotensin-converting enzyme (ACE) is the pivotal enzyme of the renin-angiotensin system and the main catabolic enzyme of the kallikrein-kinin system. The ACE I/D (insertion/deletion) is a polymorphism of the gene encoding for ACE: participants who are homozygous for the D allele exhibit higher ACE levels, which in turn appear to play a deleterious role in several diseases. AIM: To study the prevalence of ACE I/D polymorphism in IBD patients and its possible association with disease features. METHODS: A total of 232 IBD patients, 124 with ulcerative colitis (UC) and 108 with Crohn's disease and 99 healthy controls were genotyped for the ACE I/D polymorphism. RESULTS: DD, ID and II genotypes distribution did not show significant differences between IBD patients and controls: 42.2 vs. 40.4%, 42.7 vs. 47.5% and 15.1 vs. 12.1%, respectively. No significant difference was observed between Crohn's disease and UC patients. Within UC patients, the presence of DD genotype and the carriage of the D allele were significantly associated with the presence of extraintestinal manifestations: odds ratio (OR) 4.08, 95% confidence interval (CI): 1.62-10.28; P<0.003 and OR=3.07, 95% CI: 1.45-6.48; P<0.003, respectively. No significant association was found with other IBD clinical features. CONCLUSIONS: The ACE I/D polymorphism is not associated with IBDs but the D allele appears to increase the risk of developing extraintestinal manifestations in UC patients.
Angiotensin-converting enzyme; Extraintestinal manifestations; Gene polymorphism; Inflammatory bowel disease
Settore MED/12 - Gastroenterologia
Settore MED/09 - Medicina Interna
nov-2007
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/42961
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