Thiopurines (TP) are widely used in the management of inflammatory bowel diseases. Side-effects and inefficacy are a major concern as they lead to withdrawal of the drug. Tools investigating TP metabolism are useful to avoid inadequate cessation of TP therapy. TP metabolism is complex and many enzymes are involved. Among them, Thiopurine methyltransferase (TPMT) is the only one routinely measured by pheno- or genotyping. In this review, the rationale for TPMT and thiopurine metabolites, 6-thioguanine nucleotides and 6-methylmercaptopurine, determination in clinical practice is discussed, specifically in case of thiopurine failure and recommendations are given about their interpretation and potential dose optimization of TP drugs. (Acta gastroenterolog. belg., 2010, 73, 331-335)
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Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Ansari, A.
Elliott, T.
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Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Elliott, T.
Baburajan, B.
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Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Baburajan, B.
Mayhead, P.
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Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Mayhead, P.
O'Donohue, J.
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机构:Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
O'Donohue, J.
Chocair, P.
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Hosp Clin Sao Paulo, Unidade Transplante Renal, Sao Paulo, BrazilGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Chocair, P.
Sanderson, J.
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Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Sanderson, J.
Duley, J.
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Univ Queensland, Sch Pharm, Brisbane, Qld 4072, Australia
Mater Hosp, Dept Pathol, Brisbane, Qld, AustraliaGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
机构:
Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Ansari, A.
Elliott, T.
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机构:
Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Elliott, T.
Baburajan, B.
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h-index: 0
机构:
Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Baburajan, B.
Mayhead, P.
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h-index: 0
机构:
Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Mayhead, P.
O'Donohue, J.
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机构:Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
O'Donohue, J.
Chocair, P.
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机构:
Hosp Clin Sao Paulo, Unidade Transplante Renal, Sao Paulo, BrazilGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Chocair, P.
Sanderson, J.
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h-index: 0
机构:
Guys Hosp, Dept Gastroenterol, London SE1 9RT, England
St Thomas Hosp, Dept Gastroenterol, London, EnglandGuys Hosp, Dept Gastroenterol, London SE1 9RT, England
Sanderson, J.
Duley, J.
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Univ Queensland, Sch Pharm, Brisbane, Qld 4072, Australia
Mater Hosp, Dept Pathol, Brisbane, Qld, AustraliaGuys Hosp, Dept Gastroenterol, London SE1 9RT, England