1. Clinical parameters, LysoGb3, podocyturia, and kidney biopsy in children with Fabry disease: is a correlation possible?
- Author
-
Politei J, Alberton V, Amoreo O, Antongiovanni N, Arán MN, Barán M, Cabrera G, Di Pietrantonio S, Durand C, Fainboim A, Frabasil J, Pizarro FG, Iotti R, Liern M, Perretta F, Ripeau D, Toniolo F, Trimarchi H, Rivas DV, Wallace E, and Schenone AB
- Subjects
- Adolescent, Biopsy, Child, Child, Preschool, Fabry Disease blood, Fabry Disease urine, Female, Humans, Kidney Diseases blood, Kidney Diseases etiology, Kidney Diseases urine, Male, Microscopy, Electron, Podocytes ultrastructure, Retrospective Studies, Sex Factors, Fabry Disease complications, Glycolipids blood, Kidney Diseases pathology, Podocytes pathology, Sphingolipids blood, Urine cytology
- Abstract
Background: Fabry disease is an X-linked lysosomal storage disorder caused by α-galactosidase enzyme deficiency. We present clinical, biochemical, and histologic findings in children with classical phenotypic presentation of Fabry disease., Methods: A retrospective analysis was performed using charts from 14 children with confirmed diagnosis. Clinical parameters were evaluated. Globotriaosylsphingosine -lysoGb3- detection in plasma, podocyturia, and kidney biopsy were carried out in all cases., Results: All patients except one demonstrated at least one symptom of Fabry disease. LysoGb3 levels were above the normal range in all patients. Podocyturia was documented in all patients. Kidney biopsy revealed glomerular, interstitial, vascular, and tubular changes on light microscopy in nearly all patients. Electron microscopy showed podocyte inclusions in all patients., Conclusions: No difference in symptomatology was discernible between boys and girls. Podocyturia was detectable in children serving as a possible early marker of kidney injury. LysoGb3 was elevated in all cases, emphasizing the importance for diagnosis especially in female patients with normal αGal A activity. A possible association between lysoGb3 and symptom severity and histological involvement in kidney biopsy should be assessed in prospective studies with enough statistical power to determine if lysoGb3 can be used to predict nephropathy in children with Fabry disease.
- Published
- 2018
- Full Text
- View/download PDF