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PRENATAL DIAGNOSIS OF X-LINKED SPINAL AND BULBAR MUSCULAR ATROPHY IN A GREEK FAMILY

✍ Scribed by CHRISTOS YAPIJAKIS; ELISABETH KAPAKI; MARINA BOUSSIOU; DIMITRIS VASSILOPOULOS; CONSTANTINE PAPAGEORGIOU

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 495 KB
Volume: 16
Category: Article
ISSN: 0197-3851
DOI: 10.1002/(sici)1097-0223(199603)16:3<262::aid-pd841>3.0.co;2-f

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✦ Synopsis

X-linked spinal and bulbar muscular atrophy (SBMA) is a late-onset motor neuron disorder which is caused by an expansion of the trinucleotide repeat (CAG), in the first exon of the androgen receptor gene. Two cases of prenatal testing for the disease in a Greek family are reported. An affected male died in his late 50s of this disorder and his 30-year-old daughter (an obligate camer) asked for prenatal testing for SBMA. DNA analysis revealed that she indeed carried an expanded allele of 40 repeats, as well as a normal size allele of 24 repeats. Prenatal diagnosis of SBMA was performed when, on two successive pregnancies, two male fetuses with the expanded (CAG), allele were found.

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