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Tuberous Sclerosis - Contemporary Possibilities of DNA Diagnosis


Authors: R. Vrtěl;  A. Šantavá;  E. Krejčiříková;  J. Šantavý
Authors‘ workplace: Ústav lékařské genetiky a fetální medicíny LF UP, Olomouc, přednosta prof. MUDr. J. Šantavý, CSc.
Published in: Čes-slov Pediat 1999; (6): 288-292.
Category:

Overview

The complex of tuberous sclerosis (TSC, Bourneville’s syndrome) is an autosomal dominant hereditary diseasewith a genetic and clinical heterogeneity. Dominant manifestations include hamartomas in different organs (mostfrequently renal angiolipomas and rhabdomyomas in the heart muscle). Dermal manifestations include hypome-lanotic spots, adenoma sebaceum in the face (Pringle’s adenoma) subungual fibromas and shagreen patches. Thelesion in the CNS (cortical tubers, subependymal nodules) are the cause of mental retardation and epilepsy. Thedisease has a variable expressivity, from very severe manifestations with serious mental retardation and organaffections to isolated mild dermal symptoms. The responsible gene was identified in the region of 9q34 (TSC1 gene)and the second gene the mutation of which leads to manifestations of the disease is the so-called TSC2 gene locatedin the region 16p13.3. The authors present the clinical picture of tuberous sclerosis with a typical variability inthe family, where DNA analysis (method SSCP) revealed mutations of the TSC1 gene in exon 13.

Key words:
complex of tuberous sclerosis, clinical variability, DNA, diagnosis, TSC1

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Labels
Neonatology Paediatrics General practitioner for children and adolescents

Article was published in

Czech-Slovak Pediatrics


1999 Issue 6

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