International best practice for the evaluation of responsiveness to sapropterin dihydrochloride in patients with phenylketonuria
Molecular Genetics and Metabolism(2019)
摘要
Phenylketonuria (PKU) is an inherited metabolic disease caused by phenylalanine hydroxylase (PAH) deficiency. As the resulting high blood phenylalanine (Phe) concentration can have detrimental effects on brain development and function, international guidelines recommend lifelong control of blood Phe concentration with dietary and/or medical therapy. Sapropterin dihydrochloride is a synthetic preparation of tetrahydrobiopterin (6R-BH4), the naturally occurring cofactor of PAH. It acts as a pharmacological chaperone, reducing blood Phe concentration and increasing dietary Phe tolerance in BH4-responsive patients with PAH deficiency. Protocols to establish responsiveness to sapropterin dihydrochloride vary widely.
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关键词
Tetrahydrobiopterin,Phenylalanine,Phenylketonuria,Response,Pregnancy,Sapropterin dihydrochloride
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