neonatal tyrosinemia

neonatal tyrosinemia
a transitory, usually asymptomatic, neonatal disorder caused by a combination of immaturity of the enzyme 4-hydroxyphenylpyruvate dioxygenase, elevated dietary intake of tyrosine and phenylalanine, and a relative ascorbate deficiency. It occurs most often in premature infants and usually has no sequelae; a causal relationship with mild mental retardation is possible.

Medical dictionary. 2011.

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