Detection of X chromosome aneuploidy using Southern blot analysis during routine population-based screening for fragile X syndrome

Genet Test. 2003 Winter;7(4):345-6. doi: 10.1089/109065703322783734.

Abstract

We report herein two cases where detection of X chromosome aneuploidy (cytogenetically proved 45,X/46XX and 47,XXX) was made possible by molecular diagnosis during population-based carrier screening for Fragile X syndrome, using Southern blot analysis. This study emphasizes the value of molecular analysis for gene dosage to suggest chromosomal aneuploidy.

MeSH terms

  • Aneuploidy*
  • Blotting, Southern / methods
  • Chromosomes, Human, X*
  • Female
  • Fragile X Mental Retardation Protein
  • Fragile X Syndrome / diagnosis
  • Fragile X Syndrome / genetics*
  • Genetic Testing
  • Heterozygote
  • Humans
  • Nerve Tissue Proteins / genetics
  • RNA-Binding Proteins / genetics

Substances

  • FMR1 protein, human
  • Nerve Tissue Proteins
  • RNA-Binding Proteins
  • Fragile X Mental Retardation Protein