Reference : No association between C-reactive protein gene polymorphisms and decrease of C-reacti...
Scientific journals : Article
Life sciences : Biotechnology
Life sciences : Genetics & genetic processes
Life sciences : Microbiology
No association between C-reactive protein gene polymorphisms and decrease of C-reactive protein serum concentration after infliximab treatment in Crohn's disease
Willot, S. [> > > >]
Vermeire, S. [> > > >]
Ohresser, M. [> > > >]
Rutgeerts, P. [> > > >]
Paintaud, G. [> > > >]
Belaiche, Jacques [Université de Liège - ULiège > Département des sciences cliniques > Hépato-gastroentérologie]
De Vos, M. [> > > >]
Van Gossum, A. [> > > >]
Franchimont, D. [> > > >]
Colombel, J. F. [> > > >]
Watier, H. [> > > >]
Louis, Edouard mailto [Université de Liège - ULiège > Département des sciences cliniques > Hépato-gastroentérologie >]
Pharmacogenetics and Genomics
Lippincott Williams & Wilkins
Yes (verified by ORBi)
[en] C-reactive protein ; Crohn's disease ; infliximab ; pharmacogenetics
[en] We recently showed an association between the FCGR3A V/F polymorphism and the biological response [assessed on the basis of a C-reactive protein (CRP) concentration decrease] to infliximab in Crohn's disease. The CRP and FCGR3A genes are located on the same 1q23 locus. The present study aimed: 0) to exclude a linkage disequilibrium (LD) between the two genes and 00 to study the association between CRP polymorphisms and the response to infliximab, particularly the decrease in CRP after treatment, in Crohn's disease patients. FCGR3A (V/F) polymorphism and three CRP polymorphisms (- 717G/A, 1444C/T, CRP 4A/G) were determined in 206 healthy blood donors and 189 Crohn's disease patients who had received infliximab for either refractory luminal or fistulizing Crohn's disease. Clinical response was defined as complete, partial or absent according to the same definition as in controlled trials. The biological response was defined on the basis of CRP decrease. There was no LID between CRP and FCGR3A in healthy donors or Crohn's disease patients. CRP polymorphisms had no impact on CRP decrease after infliximab. The proportions of Crohn's disease having a positive clinical or biological response were not statistically different among the various genotypes of CRP polymorphisms. There was no LD between CRP and FCGR3A polymorphisms. CRP polymorphisms were not associated with the response to infliximab in Crohn's disease. Pharmacogenetics and Genomics 16:37-42. (c) 2006 Lippincott Williams

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