Lancia P, De Beaumais T, Dossier C, Baudouin V, Ulinski T, Deschênes G and Jacqz-Aigrain E*
Purpose: The objective of this study was to investigate the factors involved in mycophenolate mofetil (MMF) disposition on the risk of diarrhoea in renal transplanted children.
Methods: Patients’ characteristics, immunosuppression and polymorphisms of UGT1A8, UGT1A9, UGT2B7, ABCC2, IMPDH1, and IMPDH2 genes were explored. Statistical analyses were performed using logistic regression.
Results: Eighty three renal transplanted patients were included and 28/83 (33%) developed diarrhoea requiring MMF discontinuation or switched to the enteric-coated formulation EC-MPS during follow-up. In the multivariate analysis, the risk of diarrhoea was significantly higher in ABCC2 -24CC wild-type patients carrying IMPDH2 IVS7 + 10 T>C variant.
Conclusion: IMPDH2 (IVS7+10T>C) and ABCC2 (c.-24C>T) are biomarkers associated with diarrhoea in children treated with MMF.
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