title: CYP2C9*3 Loss-of-Function Allele Is Associated With Acute Upper Gastrointestinal Bleeding Related to the Use of NSAIDs Other Than Aspirin.
abstract: Nonsteroidal anti-inflammatory drugs (NSAIDs), other than aspirin, are to some extent metabolized by cytochrome P450 2C9 (CYP2C9). The CYP2C9 359Leu (CYP2C9*3) loss-of-function allele could be a risk factor for acute upper gastrointestinal bleeding (AUGIB) related to the use of NSAIDs other than aspirin. To test this hypothesis, we performed a prospective, multicenter, case-case study in patients hospitalized for AUGIB related to the use of NSAIDs. A total of 131 patients had been treated with aspirin and 57 patients had been treated with an NSAID other than aspirin (non-ASP). In the aspirin group, 12 patients (9.2%) had the CYP2C9 359Leu allele as compared with 19 (33.3%) in the non-ASP group (odds ratio (OR) = 5.0; 95% confidence interval 2.2-11.1, P < 0.0001). In a multivariate analysis, CYP2C9 359Leu remained associated with the non-ASP group (OR = 7.2 (2.6-20.3), P = 0.0002) even though 40% of these patients were under treatment with antiulcer drugs at the time of admission. Therefore the results of the study support the hypothesis that the CYP2C9 359Leu allele is a robust risk factor for AUGIB related to the use of NSAIDs other than aspirin.
authors.affiliation: Hepatology Department, Assistance Publique Hôpitaux de Paris, Saint-Antoine Hospital, University Pierre et Marie Curie, Paris, France.
authors.forename: N
authors.initials: N
authors.lastname: Carbonell
authors.forename: C
authors.initials: C
authors.lastname: Verstuyft
authors.forename: J
authors.initials: J
authors.lastname: Massard
authors.forename: A
authors.initials: A
authors.lastname: Letierce
authors.forename: C
authors.initials: C
authors.lastname: Cellier
authors.forename: L
authors.initials: L
authors.lastname: Deforges
authors.forename: F
authors.initials: F
authors.lastname: Saliba
authors.forename: J C
authors.initials: JC
authors.lastname: Delchier
authors.forename: L
authors.initials: L
authors.lastname: Becquemont
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000483:Alleles; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects* / Q000378:metabolism; D000897:Anti-Ulcer Agents / Q000627:therapeutic use; D001189:Aryl Hydrocarbon Hydroxylases / Q000235:genetics*; D001241:Aspirin / Q000009:adverse effects*; D016022:Case-Control Studies; D065729:Cytochrome P-450 CYP2C9; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced* / Q000235:genetics; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011446:Prospective Studies; D012307:Risk Factors
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D000897:Anti-Ulcer Agents; C450260:CYP2C9 protein, human; D065729:Cytochrome P-450 CYP2C9; D001189:Aryl Hydrocarbon Hydroxylases; D001241:Aspirin