ISSN:
1432-1076
Keywords:
Key words Carbohydrate-deficient glycoprotein syndrome
;
Gonadal dysgenesis
;
5-Oxoprolin-uria Rett Syndrome
;
Thyroid dysfunction
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract Two female siblings, born to consanguineous parents, presented with a similar phenotype characterized by severe growth and developmental failure, dysmorphic features, thyroïd and gonadal dysfunction, autistic traits and hand stereotypes resembling Rett syndrome. In the elder patient, analysis of urinary organic acids disclosed a very high excretion of 5-oxoproline (4.2 to 8.1 mol/mol creatinine) and enzyme assays of leucocyte extracts revealed a profound deficiency of 5-oxoprolinase. However, normal urinary organic acid profiles were found in the younger child. In view of their distinct dysmorphic features and severe growth deficiency, these siblings cannot be considered as Rett Syndrome variants. The Dubowitz and carbohydrate-deficient glycoprotein syndromes were also excluded clinically and biochemically respectively. We conclude that these patients suffer from a hitherto undescribed autosomal recessive disorder, unrelated to the 5-oxoprolinase deficiency of the elder sib. Conclusion The present findings give evidence that 5-oxoprolinase deficiency is not associated with a distinct morbid phenotype.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s004310050746
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