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Role Of Phenylketonuria In Infants

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Phenylketonuria in Infants
Introduction
Phenylketonuria (PKU) is when a person cannot properly metabolize an amino acid known as phenylalanine that is found in food. The job of this enzyme is to chemically change the amino acid into other substances. When a child with PKU eats food containing phenylalanine, it builds up in the blood and causes problems phenylalanine is found in almost every food, except pure fat and sugar. If detected early at birth it can prevent mental defects for an infant. Phenylketonuria was the leading cause on infant death after birth before the 1960’s. Normally, such a rare condition would not attract such attention, but PKU is a treatable genetic disease. In the past, it generally resulted in severe mental retardation.

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