Phenylketonuria is a flagship inborn error of metabolism and has been at the forefront of our growing understanding, diagnosis, and treatment of this family of disorders. In this article, the current understanding of its diagnosis, treatment, and complex molecular biology and physiology is reviewed. Recent papers exploring newer and less well-delineated areas of cofactor supplementation and genetic and epigenetic modification of the genotypic expression are presented. The excitement surrounding the continued exploration of the hyperphenylalaninemias is emphasized.
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Stephen Cederbaum (2002) studied this question.
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