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Prenat Diagn. 1982 Jul;2(3):185-8.

Prenatal diagnosis of hereditary tyrosinaemia: measurement of succinylacetone in amniotic fluid.


A method is proposed for prenatal diagnosis in pregnancies at risk of hereditary tryosinaemia. Affected fetuses were detected on the basis of the abnormal presence in the amniotic fluid of succinylacetone, a metabolite previously identified in sera and urines of patients suffering from hereditary tyrosinaemia. Our data show that the forty amniotic control samples had no detectable succinylacetone, while succinylacetone was found in three out of the thirteen cases at risk. Following the parents' decision, these three fetuses were aborted. The ten other mothers who brought their pregnancies to term had normal infants. Enzymatic analysis from two of their aborted fetuses' livers revealed an absence or a low activity of fumarylaceto-acetate hydrolase (EC compared with control fetal livers of the same age.

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