## Abstract The biochemical features of two families with purine nucleoside phosphorylase deficiency are compared. Laboratory studies and an evaluation of kinetic and physical properties of erythrocyte purine nucleoside phosphorylase give evidence that a) the degree of abnormality in uric acid and
Prenatal exclusion of purine nucleoside phosphorylase deficiency
โ Scribed by E. Carapella Luca; M. Stegagno; C. Dionisi Vici; R. Paesano; L. D. Fairbanks; G. S. Morris; H. A. Simmonds
- Book ID
- 104775394
- Publisher
- Springer
- Year
- 1986
- Tongue
- English
- Weight
- 261 KB
- Volume
- 145
- Category
- Article
- ISSN
- 0340-6997
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โฆ Synopsis
We report on the prenatal exclusion of purine nucleoside phosphorylase (PNP) deficiency in a fetus whose parents were known to be heterozygotes for the enzyme defect. Prenatal investigation was performed in the 16th week of gestation on amniotic fluid and cultured amnion cells using sensitive techniques. The results suggested that the fetus was either normal or a heterozygote. PNP activity in cord red cells confirmed the heterozygous status of the baby.
๐ SIMILAR VOLUMES
Purine nucleoside phosphorylase deficiency is an inherited disease of purine metabolism characterized clinically as combined immunodeficiency. The molecular defects have been published for 4 different alleles in 3 patients. We report four new mutations including two amino acid substitutions, A 174P
A brief genetic report is given on a family with a child affected by nucleoside phosphorylase deficiency. Our observations confirm the genetic heterogeneity of this enzyme deficiency which is inherited as a mendelian autosomal trait.