Enzyme deficiency causes inability to make phenylalanine into tyrosine and results in toxicity affecting gait and posture {phenylketonuria}| (PKU). Enzyme deficiency also causes inability to metabolize phenyl pyruvate, and excess blood phenyl pyruvate causes mental retardation. PKU affects one in 10,000 births. Diets low in phenylalanine can prevent PKU.
Biological Sciences>Medicine>Disease>Kinds>Organ>Nerve>Retardation
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Date Modified: 2022.0224